CN1235464C - Rice transplanter - Google Patents

Abstract

This invention relates to a rice transplanter comprising: a transplanting frame 20 for driving rice transplanting pawls 17; and a seedling feeding member 58 connected to the transplanting frame 20 through a seedling feeding case 59. The seedling feeding member 58 has a longitudinal feed camshaft 65 formed on one side and a transverse feed threaded shaft 66 formed on the other side, and the camshaft 65 and threaded shaft 66 are arranged on the right and left sides across the center of the transplanter body, to improve two side weight balances of a transplanting portion 15 thereby keeping the transplanting precision stable. The longitudinal feed cams 116 of the longitudinal feed camshaft 65 and the slide blocks 114 of the transverse feed threaded shaft 66 are arranged on the right and left sides across the body center to facilitate their maintenances.

Description

rice transplanter

technical field

The present invention relates to a rice transplanter provided with a rice seedling mounting table and a rice transplanting claw, and which performs continuous rice transplanting work.

Background technique

In the past, for example, in Japanese Unexamined Patent Publication No. 2000-41429, since it is relative to the center of the machine body, the slider and the slider support of the rice seedling loading platform drive gearbox and the rice seedling feeding shaft are arranged in an offset manner. One side, so the rice transplanting part becomes unbalanced in the left and right directions, which may also affect the balance of the rolling weight.

Moreover, in the case of a structure in which such a slider is slid near the center of the body, there is a possibility that the slider or the slider support may be poor in maintainability due to the existence of a hook member or the like connecting the rice transplanting portion to the main machine side. .

Furthermore, for example, in Japanese Utility Model Registration No. 2548430 or Japanese Patent Application No. 2000-41429, etc., the rotation of the transplanting drive shaft in the rice transplanting frame is transmitted to the infeed through the infeed gear box. Shaft, the mechanism that makes the rice seedling loading table carry out infeed, but in the case of changing the infeed speed, only changing the gears in the infeed gearbox will take manpower and time, and it is very cumbersome. Even when the gear box cover is removed for maintenance and inspection, the gear or shaft remains on the rice transplanting side, so it is troublesome to remove the gear or shaft every time. In addition, in the infeed gear box, when only the gear box cover is removed, the gears or shafts in the gear box remain on the side of the rice planting section, so when inspection or maintenance of the gears or shafts is required, every It is troublesome to remove the gears and shafts every time, and there is a problem that maintenance is difficult.

In the aforementioned Japanese Patent Laid-Open No. 2000-41429, the infeed gear box, which transmits the rotation of the drive shaft in the transverse connection pipe to the infeed shaft, is arranged on one side of the rice transplanting part in an exposed state, and at the same time The structure in which the seedling-taking adjustment rod is arranged inside the infeed gear box is formed. Therefore, there is a problem that the gear box is damaged in contact with obstacles during the operation, which brings about the problem of inclusions. When the switching lever is installed in the gear box, foreign matter may be added to the switching lever, which may cause malfunction.

In the aforementioned Japanese Unexamined Patent Publication No. 2000-41429 or Utility Model Registration No. 2588523, etc., although there is a mechanism in which the left and right rope marks are freely undulating on the lower fulcrum of the rice transplanting drive frame supporting the hull of the rice transplanter, When adjusting the depth of rice transplanting, the lower supporting shaft is rotated to change the support height of the rice transplanter hull, the installation angle of the left and right rope marks changes at any time. The rice seedling loading platform or the fertilization device on the main machine abuts and causes damage, etc. Moreover, when the marker is kept connected to the support shaft, since the attitude of the marker is tilted forward when storing the marker, when the marker is folded from the working position to the storage position, the mud splashed by the marker may be brought to the driving operation. By. In addition, the infeed gearbox, which transmits the rotation of the drive shaft in the transverse connection pipe to the infeed shaft, is installed on the side of the rice transplanting section in an exposed state, and may be damaged due to the contact of the gearbox with obstacles in the work, etc. Gearbox etc.

Contents of the invention

The rice transplanter of the present invention is equipped with a rice transplanting frame 20 for driving the rice transplanting claws 17 and a rice seedling feeding part 58 connected to the rice seedling feeding frame 20 through a rice seedling feeding gear box 59, and the rice seedling feeding part 58 forms a longitudinal The feed camshaft 65 is formed on the other side to feed the screw shaft 66 horizontally. At the same time, these camshafts 65 and the screw shaft 66 are arranged separately from the center of the body to the left and right, thereby balancing the left and right weights of the rice transplanting part 15. It is good to keep the rice transplanting accuracy stable. At the same time, the longitudinal feed cam 116 of the longitudinal feed camshaft 65 and the slider 114 of the lateral feed screw shaft 16 are separated from the center of the body from the left and right, thus making these maintenance easy. conduct.

The two ends of the horizontal feed screw shaft 66 are connected and supported on the rice transplanting frame 20, and at the same time, the two ends of the longitudinal feed cam shaft 65 are supported on the screw shaft 66 and the rice seedling feed gear box 59, therefore, The rice seedling feed gear box 59 and the horizontal feed screw shaft 66 are supported on the rice transplanting frame 20 with good precision, and at the same time, the vertical feed cam shaft 65 is supported on the rice seedling feed gear box 59 in a double-supported manner. And on the lead screw shaft 66, thereby can improve the horizontal feeding of rice seedling loading platform 16 and the longitudinal feeding accuracy of rice seedlings.

Furthermore, a substantially L-shaped structure is formed to connect the rice seedling feeding gear box 59 to the horizontal gear box part 59b of the rice transplanting frame 20 and the vertical gear box part 59a in the up and down direction, and the vertical feeding cam shaft 65 is extended. Inside the vertical gear box part 59a, the vertical feed cam 116 is made to face the substantially U-shaped space area formed by the rice seedling feed gear box 59 and the cam shaft 65, thereby reducing the size of the rice seedling feed gear box 59 and the vertical feed cam. The width of the horizontal space of the internal part improves the compactness and expands the degree of freedom in the setting or design of other parts.

Equipped with a rice transplanting frame 20 for driving the transplanting claws 17 and a rice seedling feeding gear box 59 arranged on the left and right sides of the rice transplanting frame 20 to drive the rice seedling feed shaft 58, the rice seedling feeding gear box 59 is connected to the rice transplanting frame The horizontal gear box part 59b of 20 and the vertical gear box part 59a that connects the horizontal feed shaft 58 form a substantially L shape, and the speed change mechanism 64 that changes rice seedling feeding speed is arranged on the vertical gear box part 59a, and the speed change mechanism 64 is converted. The conversion mechanism 131 is arranged on the transverse gear box part 59b, so the rice seedling feeding speed can be easily changed by setting the small rice seedling feeding gear box 59 at a low cost, and the rice seedling feeding gear can be well ensured. The space around the box 59 increases the degree of freedom of design or accessory parts setting, and at the same time, the gear box 59 with the speed change mechanism 64 or the conversion mechanism 131 can be easily removed in the rice seedling feeding gear box 59, thereby The maintainability of the transmission mechanism 64, the conversion mechanism 131, etc. is improved.

Equipped with a rice transplanting frame 20 that drives the rice transplanting claws 17, a frame joint 48a, 48b that connects the fixed rice transplanting frame 20, and a rice seedling feeding gearbox that drives the rice seedling feeding shaft 58 for lateral feeding and longitudinal feeding of the rice seedlings 59, the mounting part 60 for installing and fixing the rice seedling feeding gear box 59 is arranged on one side of the frame joint 48a, and at the same time, the joint that is embedded and engaged with the outer side of the frame joint 48a protruding from the mounting part 60 is engaged. Part 124 is arranged on one side inner surface of rice seedling feeding gear box 59, so the states of switching gears 62, 63 or switching mechanism 131 etc. for rice seedling feeding speed change can be left in rice seedling feeding gear box 59 easily. Directly and integrally installed on the side of the transplanting part of the rice seedling feeding gear box 59 or unloaded from it, the installation accuracy of the rice seedling feeding gear box 59 can be improved, and the rice seedlings such as the conversion gears 62, 63 or the conversion mechanism 131 can be connected simultaneously. The maintainability of the feed transmission mechanism 64 is good.

Equipped with a rice transplanting frame 20 that drives the rice transplanting claws 17, a rice seedling feeding gear box 59 that drives the rice seedling feed shaft 58 on the left and right sides of the rice transplanting frame 20, and a device that adjusts the amount of rice seedlings taken by the rice seedling loading platform 16. Get the seedling amount regulating part 88, owing to walk around the side from the rear of the rice seedling feed gear box 59 and protrude the top side of the adjusting part 88 in the front, so protect the rice seedling feed gear box 59 with the seedling getting amount regulating part 88 The outer side can improve the durability of the horizontal feed gear box 59, and meanwhile, the amount of seedling-taking adjustment part 88 is integrally formed by the horizontal part, that is, the horizontal shaft part 88a and the longitudinal part, that is, the vertical shaft part 88b, into a substantially L-shaped combined structure, Since the seedling removal amount adjustment member 88 is formed with the simple structure which reduced the number of parts, installation simplification and cost reduction can be achieved.

Equipped with a rice transplanting frame 20 for driving the rice transplanting claws 17, a rice seedling feeding gear box 59 arranged on the left and right sides of the rice transplanting frame 20 to drive the rice seedling feeding shaft 58, and a marking support member for supporting the left and right surrounding ropes 76 in a foldable manner. 77, one side of the mark support member 77 is fixed on the rice transplanting frame 20, and the other side is formed by bending on the outside of the machine body. Like the prior art, the support angle of the mark 76 will not be changed every time the depth of rice transplanting is adjusted, and the mark 76 will not be connected with the rice seedling loading platform 16 and installed on the main engine when the storage operation of the mark 76 is carried out. Problems arise when the fertilizing device 36 abuts on the top of the rice planting part 15. The compact addition of the mark 76 in the rice transplanting part 15 reduces the front and rear length of the body, and makes the front and rear balance of the body good. At the same time, the storage posture of the mark 76 becomes established compared with the existing ones. The raised posture can prevent the soil attached to the mark 76 from splashing to the operator's side when the mark storage operation is carried out, and protect the front of the rice seedling feeding gear box 59 with the mark support member 77, preventing the rice seedling from being fed. The gear box 59 is damaged and the durability is improved.

In addition, since the rice seedling feeding gear box 59 is disposed between the protection member 74 and the mark support member 77 provided at one end of the rice transplanter hull support member 67, the rice seedlings are adjusted from front to back by the protection member 74 and the mark support member 77. Feed gear box 59 is protected, rice seedling feed gear box 59 can be made to carry out good setting without damage, at the same time, when rice seedling feed (transversal feed) speed conversion conversion lever 138 is arranged on rice seedling feed When the gear box 59 is attached, the problem of inclusions brought by the switching lever can be eliminated, and misoperation of the switching lever 138 can be prevented.

Description of drawings

Fig. 1 is an overall side view of the rice transplanter.

Fig. 2 is an overall plan view of the rice transplanter.

It is a side view of a rice transplanting part.

Fig. 4 is a plan view of a rice transplanting unit.

It is a plan explanatory drawing of a rice transplanting part.

It is a schematic front view of a rice transplanting part.

Fig. 7 is a front view of a rice transplanting frame part.

It is a side view of a rice transplanting frame part.

Fig. 9 is a planar cross-sectional view of a rice transplanting rack unit.

Fig. 10 is a left plan view of the rice transplanting frame.

Fig. 11 is a plan view of the right side of the rice transplanting frame.

Fig. 12 is a cross-sectional explanatory view of the rice transplanting frame.

Fig. 13 is an explanatory oblique view of the rice transplanting frame.

Fig. 14 is an explanatory diagram of a seedling taking part.

Fig. 15 is a cross-sectional explanatory view of a rice seedling feeding gear box.

Fig. 16 is an explanatory diagram of a shift shaft portion.

Fig. 17 is an explanatory diagram of a conversion mechanism.

It is explanatory drawing of a clutch part of a rice planting claw unit.

It is an external appearance explanatory drawing of a clutch part of a rice planting claw unit.

Fig. 20 is an explanatory diagram of a side bumper portion.

Detailed ways

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Fig. 1 is a side view of a manned rice transplanter, and Fig. 2 shows its plan view, among the figure 1 is the driving car that the operator takes, engine 2 is loaded on the vehicle frame 3, makes paddy field by front axle gear box 5 in front-rear direction The front wheel 6 for driving is supported in front of the elongated gearbox 4 , and the rear wheel 8 for paddy field driving is supported on the rear axle gearbox 7 at the rear of the aforementioned gearbox 4 . And cover the hood 9 both sides of aforementioned engine 2 etc. to install spare rice seedling loading platform 10, simultaneously, cover aforementioned gearbox 4 etc. by the vehicle body cover 11 that operator takes, the driver's platform at aforementioned vehicle body cover 11 rear sides 12, a driver's seat 13 is installed, and a steering wheel 14 is set at the front of the driver's seat 13 at the rear of the aforementioned hood 9.

15 among the figure is equipped with the transplanting portion of 4 seedling-transplanting platforms 16 and a plurality of transplanting claws 17, etc., and the forward-inclining rice seedling loading platform 16 made of synthetic resin with a high front and a low rear passes through the lower guide rail 18 and the guide rail 19. The left and right reciprocating slides are freely supported on the rice transplanting frame 20. At the same time, the rotor gearbox 21 that rotates at a uniform speed in one direction is supported on the aforementioned rice transplanting frame 20. A pair of rice-planting claw gear boxes 22,22 are provided, and rice-planting claws 17,17 are installed on top of the rice-planting claw gear boxes 22,22. Then the left and right sides frames 23, 23 are erected on the left and right ends of the aforementioned rice transplanting frame 20 to support the rice seedling loading platform 16, so that the hook support 24 in the center of the left and right sides of the rice transplanting frame 20 passes through the upper connecting rod 25 and the lower part. The lifting link mechanism 27 of the connecting rod 26 is connected with the traveling vehicle 1, and the hydraulic lifting cylinder 28 provided on the traveling vehicle 1 is connected with the lower connecting rod 26. Carry out lifting, simultaneously, when rice transplanting part 15 descends, rice seedlings are taken out one by one from the rice seedling loading platform 16 that reciprocates sliding in left and right direction by transplanting claw 17, form the structure that carries out rice seedling operation continuously.

Among the figure, 29 is the main speed change lever, and 30 is the riding position of the body, needless to say, the rice seedling connecting rod that can carry out operations such as stopping from the position of getting off from the body, 31 is the rice seedling elevating lever, and 32 is the main clutch pedal. 33,33 are left and right brake pedals, 34 are two center hulls on flat ground, 35 are side hulls on flat ground, and 36 are four side pipe fertilizer applicators, 37,37 are auxiliary wheels equipped with the outside of rear wheel 8.

The above-mentioned side bar fertilizer spreader 36 is equipped with a hopper 38 for adding fertilizer, a fertilizer delivery part for supplying fertilizer, that is, a fertilizer output gearbox 39, and a turbo blower for side bar openers 40 that discharge fertilizer to the hulls 34 and 35 through flexible transport pipes 41. Type air blower 42 and cylindrical air storage box 43, meanwhile, air blower 42 is installed at one end of air storage box 43 right sides, and the fertilizer output gear box 39 that makes four divides four groups is equipped with on air storage box 43 upper sides, makes aforementioned The upper end of the rice seedling loading stand 16 is arranged close to the rear side of the hopper 38 .

As shown in Figures 3 to 12, the above-mentioned rice transplanting frame 20 has two separate control left and right longitudinal frames 44a, 44b and a control horizontal frame 45 between the front ends of the left and right longitudinal frames 44a, 44b, so that the expansion The cross frame joint (cross pipe joint) 46 formed by shape processing is welded and fixed on the top ends of each longitudinal frame 44a, 44b, and the aforementioned rotor gearbox 21 is freely rotatably supported on the joint 46 through the rotating shaft 47, and at the same time, the expansion The left and right cross-shaped frame joints (cross pipe joints) 48a, 48b formed by shape processing are welded and fixed on the longitudinal frames 44a, 44b and the horizontal frame 45, so that these vertical and horizontal frames 44a, 44b, 45 are integrally connected. The structure of the lightweight rice transplanting frame 20 is formed at low cost.

Furthermore, the rice transplanting input shaft 49 is arranged on the front end of the right frame joint 48b, and the driving force from the PTO shaft of the aforementioned gearbox 4 is transmitted to the input shaft 49 through the free connection shaft 50, and the input shaft 49 is passed through the bevel gears 49a, 52. The shaft 49 is linked to the rice transplanting drive shaft 51 built in the horizontal frame 45, and the rice transplanting claw drive shaft 53 built in the left and right longitudinal frames 44a, 44b is connected to the rice transplanting drive shaft 51 through the bevel gears 52, 54 and the safety clutch 55 The rice planting claw drive shaft 53 is connected to the above-mentioned rotating shaft 47 in conjunction with the bevel gears 56a, 56b and the rice planting claw unit clutch 57, and the drive of the rice planting claw 17 is performed.

Have again, the rice seedling feeding shaft 58 linkage connection that rice seedling carrying platform 16 is carried out left and right direction horizontal feeding and the seedling on rice seedling carrying platform 16 is carried out longitudinal feeding by cast aluminum rice seedling feeding gear box 59 to the left end of the rice seedling drive shaft 51, so that one end side flange part 61 of the rice seedling feeding gear box 59 is bolted on the left end installation part of the left frame joint 48a, that is, the flange part 60, so that the rice seedling feeding shaft The left end of 58 is inserted and supported on the other end side of gear box 59, and the speed change mechanism 64 formed with two groups of conversion gears 62,63 for high and low speed change is installed in the drive shaft 51 and the rice seedling feeding shaft 58 in the gear box 59 Between, the left half part of rice seedling feed shaft 58 is arranged on rice seedling longitudinal feeding camshaft 65 relative to the approximate center of the body, and the right half is arranged on rice seedling lateral feed screw shaft 66, when rice seedling feeding When shaft 58 carried out high and low two-speed rotary drives, rice seedling loading platform 16 carried out lateral feeding, and rice seedlings on the rice seedling loading platform 16 carried out longitudinal feeding.

As shown in Fig. 10 and Fig. 11, the seedling depth adjustment fulcrum 67 is pivotally supported on the front end lower side of the aforementioned rice transplanting frame 20, and the rear of each hull 34, 35 is adjusted by the seedling depth adjustment connecting rods 70, 71. The brackets 68 and 69 above the end are connected to the aforementioned fulcrum 67, and the change of the inclination angle (planting depth) of the hull is detected by the lifting link 72 connected to the front end of the central hull 34. At the same time, by fixing the bottom end on the aforementioned fulcrum The rice transplanting depth adjustment lever 73 of 67 carries out the regulation of reference rice transplanting depth.

In addition, L-shaped left and right side bumpers 74 are protrudingly provided on the outside through mounting members 75 at both left and right ends of the support shaft 67 .

As shown in Fig. 8, Fig. 10, Fig. 11, because the bottom end of the left and right mark support bar 77 that makes folding (undulating) freely supports left and right surrounding rope marks 76 is welded and fixed on the outside of left and right frame joints 48a, 48b, supports The rod 77 is made of an L-shaped tube, and the longitudinal support rod portion 77a in the front-rear direction and the approximate center of the joints 48a, 48b are fixed on the substantially same height plane in the longitudinal direction by line contact welding, so that the horizontal support rod portion 77b is positioned on the longitudinal frame 44a. The front of , 44b faces the left and right outsides, and the mounting shaft 78 that marks 76 are folded and freely supported on the top of the cross support rod part 77b is freely supported by the mark table 79, and the cross support rod part 77b of the left support rod 77 is positioned on the rice seedling feed The front of the gear box 59 protects the gear box 59 .

As shown in Figure 13, the bottom end of the longitudinal support portion 77a of the above-mentioned support bar 77 is also welded and fixed on the inner sides of the left and right reinforcement members 80, 81 at the bottom ends of the left and right side frames 23, 23 installed on the joints 48a, 48b side, so that The supporting strength of these side frames 23 and the support rods 77 is improved.

As shown in Figure 14, the seedling-retrieving plate 82 at the lower end of the rice seedling loading platform 16 is moved up and down to adjust the seedling-retrieving adjustment plate 83, which is freely supported on the guide member of the rice transplanting frame 20 through the guide rod 85 to move up and down. 84, the connecting plate 87 connected with the hook 86 of the adjustment plate 83 is arranged on the seedling-taking amount adjustment shaft 88 in the left and right direction, and the seedling-taking amount adjustment lever 89 connected to the left end side of the seedling-taking amount adjustment shaft 88 is operated, Adjust the amount of rice seedlings taken out by the rice seedling claws 17, so that the left and right ends of the horizontal axis portion 88a of the seedling amount adjustment shaft 88 are freely rotatably supported on the bearing plate 90 fixedly arranged on the rice seedling feeding gear box 59. With the aforementioned right reinforcement member 81, the left end side of the horizontal axis portion 88a is bent forward approximately 90 degrees from the outside of the rice seedling feeding gear box 59, and is formed on the longitudinal axis portion 88b in the front-rear direction. 59, the front end of the longitudinal axis portion 88b is bent approximately 90 degrees inwardly, and is formed on the adjusting rod mounting portion 88c, and the bottom end of the L-shaped adjusting rod 89 is fixed on the mounting portion 88c with two bolts 91, so that the adjustment The top end of the rod 89 is extended through the guide rod 92 and is arranged obliquely in front, facing between the left rear wheel 8 and the auxiliary wheel 37. The rice seedling feeding gearbox 59 is surrounded by each part 88a, 88b, 88c for protection. 59 and the gap 93 of the seedling-taking adjustment shaft 88 carry out the location of the aforementioned delivery hose 41.

The above-mentioned hook bracket 24 is provided with the upper and lower link shafts 94, 95 connecting the upper link 25 and the lower link 26, and the fulcrum member 96, which is welded to the approximate center of the horizontal frame 45 of the rice transplanting frame 20, is surrounded and fixed by rolling. The fulcrum 97 is rotatably connected to the lower end of the support 24, and the hydraulic rotary cylinder 99 is installed on the mounting seat 98 at the upper end of the support 24, so that the top end of the piston rod 100 of the cylinder 99 is connected to the fixed support 101 at the upper end of the right frame 23. The gear pump 102 that reciprocates and drives the double-acting aforementioned cylinder 99, the reversible motor 103 that drives the pump 102 positively and negatively, and the oil tank 104 are integrally arranged on the cylinder 99, and the supporting plate 105 that is fixedly arranged on the aforementioned mounting base 98 Compensation spring 106 is stretched between the left and right end brackets on the side of rice seedling loading platform 16, when the pendulum type roll sensor 108 of the sensor table 107 of the horizontal frame 45 on the left side of the hook bracket 24 detects the rice transplanting part 15 During the inclination, advance and retreat the piston rod 100 of control cylinder 99, make rice transplanting part 15 shake left and right around fulcrum 97, keep rice transplanting part 15 level.

The bracket 109 that is welded and fixed on the right end of the aforementioned horizontal frame 45 and the fulcrum part 96 is set, and the support 101 on the upper end of the bracket 109 and the right side frame 23 is strengthened with an oblique support bar 110, thereby improving the right side with the lightest structure. The rigidity of the side frame 23 ensures rollability.

Have again, adopt aforementioned bracket 109 to freely rotate and support the approximate middle of rice seedling feeding shaft 58, so make the two ends of aforementioned horizontal feeding screw shaft 66 support on the bearing plate 111 that is fixedly arranged on right support rod 77 by bearing 112 Between the bracket 109, the right end of the aforementioned longitudinal feeding camshaft 65 is respectively connected and supported on the left end of the screw shaft 66 through the joint 113, and the left end is connected and supported on the rice seedling feeding gear box 59, so that these are divided into left and right longitudinal The feed camshaft 65 and the lead screw shaft 66 form a double support structure to improve the support strength, and at the same time connect the right end of the longitudinal feed camshaft 65 to the lead screw shaft 66 through the same axis to improve the longitudinal feed accuracy. The aforementioned camshaft 65 is an iron hollow tube, and the leading screw shaft 66 is formed of solid iron. The aforementioned rice seedling feed gear box 59 and the camshaft 65 are arranged on the left side of the body center, and the heavier leading screw is arranged on the right side. The shaft 66 is arranged so that the left and right balance is good.

Slide block 114 is threaded on aforementioned lead screw shaft 66, slide block 114 is connected with rice seedling loading platform 16 by stopper 115, when screw shaft 66 carried out unidirectional rotation, rice seedling loading platform 16 carried out left and right Move back and forth, at the same time, on the aforementioned longitudinal feed camshaft 65, be provided with left and right longitudinal feed cams 116, when the rice seedling loading table 16 moves to the left and right moving end, make the longitudinal feed cam 116 and driven cam 117 abut , the vertical feed roller 119 is rotated in one direction by the one-way clutch 118, so that the vertical feed roller 121, 122 of the upper and lower pair of rollers 119, 120, which is arranged on the lower end side of the rice seedling loading platform 16, The longitudinal feed belt 123 that rewinds between moves to the lower end direction of every rice seedling.

As shown in Fig. 15～Fig. 17, make the frame joint 48a that connects aforementioned rice seedling feed gear box 59, it installs and fixes the flange portion 60 of rice seedling feed gear box 59 and is arranged on one end side of frame joint 48a, The recessed embedded engaging portion 124 that is embedded and engaged with the outer end of the frame joint 48a that protrudes from the flange portion 60 to a certain length is arranged on one side of the rice seedling feeding gear box 59, and at the same time, the embedded engaging portion 124 The outer end forms a tapered surface 125, so that the O-ring 126 is installed between the tapered surface 125 and the joint 48a, and when it is fixed by the bolts 127 of the flange parts 60, 61, it can be maintained with a simple structure and low cost. Airtightness between joint 48a and gearbox 59.

The transmission shaft 128 separated from the transplanting drive shaft 51 is set on the aforementioned rice seedling feeding gear box 59, and a spline hole 129 is formed on the inboard of the aforementioned bevel gear 52, so that the left end of the driving shaft 51 and the right end of the transmission shaft 128 are aligned with the spline. Hole 129 is embedded and engaged, and speed change shaft 128 is integrally connected with drive shaft 51, and also can be easily taken off speed change shaft 128 integrally when taking off rice seedling feeding gear box 59.

The bearing 130 is interposed between the aforementioned joint 48a and the bevel gear 52, so that the bevel gear 52 is freely rotatably supported on one end side of the joint 48a, and the flange part 60 is welded and fixed on the outer surface of the joint 48a at the outer end of the bearing 130, and the bearing 130 The inner diameter b of the inner peripheral surface of the joint 48a where the flange part 60 is welded is formed larger than the inner diameter a of the fitting joint surface of the joint 48a for fitting engagement (a<b), and the welding deformation of the flange part 60 , even if the joint 48a is somewhat deformed, it does not affect the assembly of the bearing 130 .

The aforementioned rice seedling feeding gear box 59 is formed into an L shape provided with a vertical gear box portion 59a and a horizontal gear box portion 59b, and a flange portion 61 is formed at the right end of the horizontal gear box portion 59b, and the speed change formed by the conversion gears 62, 63 is formed. The mechanism 64 is put into the vertical gear box part 59a, and the speed change conversion mechanism 131 is packed into the horizontal gear box part 59b. Therefore, the above-mentioned conversion gears 62, 63 are provided with the drive side gears 62a, 63a which are idly supported on the speed change shaft 128 and are fixed in combination. The driven side gears 62b, 63b at the left end of the camshaft 65 are fed longitudinally, and at the same time, the above-mentioned conversion mechanism 131 is provided with a keyway 132 embedded in the speed change shaft 128, and the top end is selectively connected to the gears 62a, 63a by means of a thin plate spring force 133. The displacement key 135 that the keyway 134 is engaged and the conversion lever 138 that is connected with the displacement key 135 by the displacement ring 136 and the displacement mechanism 137 make the left end operation part 138a of the conversion lever 138 in front of the rice seedling feeding gear box 59 left outer sides The side protrudes, and the horizontal feed speed of high and low two speeds can be switched by pressing and pulling operation in the left and right directions through the switching lever 138.

The above-mentioned conversion gears 62, 63, the gears 62a, 63a on one side engaged with the displacement key 135 are made of metal materials such as iron, and the gears 62b, 63b on the other side are made of resin materials, which can improve both light weight and durability. .

As shown in Figure 18 and Figure 19, the aforementioned rice transplanting frame 20 compactly packs each bevel gear 49a, 52, 54 into the front frame joint 48a, 48b, and simultaneously compactly installs each bevel gear 56a, 56b and rice transplanting Claw unit clutch 57 packs into the frame joint 46 of rear side, realizes the simplification and cost reduction of structure, so rice transplanting claw unit clutch 57 forms fixed clutch part 139 at the bevel gear 56b that idly supports on the rotating shaft 47 respectively, A movable clutch part 141 is formed on the sliding body 140 that is spline-fitted and engaged with the rotating shaft 47 by sliding left and right, and the clutch part 139, 141 is engaged (connected) by the clutch spring 142 constantly pressing the sliding body 140, and at the same time, the Resist spring force 142 and the clutch operating part 143 that slide body 140 is retreated is freely arranged on frame joint 46, makes operating part 143 pass through bar 144 etc. and the unit clutch lever (not shown) ) is connected, and the conversion of the rice transplanting claw unit clutch 57 is performed by the operation of the clutch lever.

As shown in Fig. 20 (1) and (2), the aforementioned side bumper 74 allows the bumper curved vertical portion 74a to move up and down freely through the U-shaped mounting parts fixed on both ends of the support shaft 67 in side view. 75, the compression spring 146 is installed between the spring seat 145 of the vertical part 74a protruding downward from the mounting part 75 and the mounting part 75, and at the same time, the L-shaped The position limiting plate 147 is fixed to the vertical portion 74a, and the stopper 148 that prevents the rearward rotation of the limiting plate 147 is provided on the mounting member 75. At the position where the limiting plate 147 and the left end surface of the mounting member 75 abut, the bumper is horizontal. The portion 74b becomes protruding in the extension direction of the support shaft 67, on the one hand, protects the seedling picking plate 82, etc., and on the other hand, resists the spring 146 to pull the bumper 74 upwards, and rotates the horizontal portion 74b approximately 90 degrees in the front. When it is in the bumper storage position where the front face of the restricting plate 147 and the mounting member 75 abuts, the width of the machine body is narrowed, and it can be easily loaded and stored in a truck.

However, the aforementioned rice seedling feeding gear box 59 is composed of two shafts 65, 128, because it is the structure of a simple speed change mechanism 64 and a conversion mechanism 131 covering two groups of conversion gears 62, 63 or displacement keys 135, so the mold The cost is controlled low, and the small size and light weight are formed at low cost. At the same time, the gear box cover 150 fixed on the left side of the gear box main body side by the bolt 149 can be removed, and the conversion and inspection of the gears 62 and 63 can be easily performed. , so that the maintainability can be improved.

Make the horizontal gear box part 59b elongated, increase the distance between the vertical gear box part 59a and the flange part 61, and when tools are used in the work of removing the bolts 127, the tools can be easily inserted into the position of the bolts 127. , can make the gear box 59 carry out good loading and unloading operations.

As mentioned above, the rice transplanting part 15 forms the rice transplanting frame 20 by the tube frame, which realizes the simplification and weight reduction of the structure, and includes the rice transplanting frame 20 which drives the rice transplanting claws 17 and the marker support which supports the left and right rope markers 76 in a foldable manner. The rod is the mark support part 77, and the rear end of the mark support rod 77 is fixed on the rice transplanting frame 20. The support angle of 76 changes, and even when the mark 76 is accommodated, the mark 76 does not abut against the fertilizing device 36, which is arranged on the rice seedling loading platform 16 or the main frame, causing problems, and the mark 76 is packed compactly. Insert the rice transplanting part 15, shorten the front and rear length of the body, and make the front of the body well balanced. At the same time, compared with the past, the storage posture of the mark 76 becomes an upright posture. On one side, in addition, the bending position of the mark support rod 77 is properly changed, and it can be deployed to other models and other specifications using parts such as the common rice transplanting frame 20, and the cost can be reduced.

By making the longitudinal line contact portion of the mark support bar 77 welded and fixed on the outer sides of the frame joints 48a, 48b connecting the fixed rice transplanting frame 20, the mark support bar 77 can be kept high on the outer sides of the frame joints 48a, 48b. strength, the durability of the marker 76 can be improved.

Furthermore, by making the mark support bar 77 fixed on the side frame 23 supporting the rice seedling loading platform 16 and the reinforcement members 80, 81 of the frame joints 48a, 48b, it is not necessary to set a special reinforcement member as a mark support member. , the marker support rod 77 can be firmly fixed on the frame joints 48a, 48b, and the strength of the marker support rod 77 can be improved by means of light weight and low cost.

Equipped with a rice transplanting frame 20 for driving the rice transplanting claws 17, a rice seedling feeding gear box 59 arranged on the left and right sides of the rice transplanting frame 20 to drive the rice seedling feeding shaft 58, and a marking support rod for supporting the left and right surrounding ropes 76 freely by folding 77, the rear end of the marking support rod 77 is fixed on the rice transplanting frame 20, and the front end side is formed by bending outside the machine body. Therefore, the support angle of the mark 76 will not be changed every time the seedling transplanting depth is adjusted as in the prior art, and the mark 76 will not be connected with the rice seedling loading platform 16 when the storage operation of the mark 76 is carried out. Abutting against the fertilizing device 36 installed on the main machine causes problems. By compactly packing the mark 76 into the rice transplanting portion 15, the front and rear length of the body is reduced, and the front and rear balance of the body is good. At the same time, the accommodation posture of the mark 76 is consistent with the Compared with the existing standing posture, it can prevent the mud attached to the mark 76 from splashing on the operator's side when carrying out the mark storage operation, and the bending position of the mark support rod 77 can be changed appropriately, so that it can be used in a common way. Other models and other specifications of parts used such as rice transplanting racks can be developed to reduce costs, and the front of the rice seedling feeding gear box 59 is protected by the mark support member 77, preventing damage to the rice seedling feeding gear box 59, and durability can be improved .

Since the rice seedling feeding gear box 59 is disposed between the side bumper 74 and the mark support rod 77, the protection member provided at one end of the rice transplanter hull support member, that is, the fulcrum 67, the bumper 74 and the mark support rod 77 The paddy seedling feeding gear box 59 is protected from the front and rear, so that the paddy seedling feeding gear box 59 can be set up well without damage. When the gear box 59 is on, the problem of inclusions brought by the conversion rod 138 can be eliminated, and misoperation of the conversion rod 138 can be prevented.

Equipped with a rice transplanting frame 20 that drives the rice transplanting claws 17, a frame joint 48a, 48b that connects the fixed rice transplanting frame 20, and a rice seedling feeding gearbox 59 that drives the rice seedling feeding shaft 58 for lateral feeding and longitudinal feeding of the rice seedlings , the flange part 60 that the fixed rice seedling feeding gear box 59 is installed is arranged on one side of the frame joint 48a, and meanwhile, the recess that is engaged with the outer end of the frame joint 48a that protrudes from the flange part 60 is embedded Engagement portion 124 is arranged on the side inner surface of rice seedling feeding gear box 59, so can be placed in the rice seedling feeding gear box 59 easily the state of the conversion gear 62,63 or conversion mechanism 131 etc. that lateral feed speed change is used The bottom is directly and integrally installed or removed from the side of the rice transplanting part of the rice seedling feeding gear box 59, which improves the installation accuracy of the rice seedling feeding gear box 59, and simultaneously enables the switching gears 62, 63 or the switching mechanism 131 The maintainability of the equal infeed transmission mechanism 64 is good.

The driving parts in the supporting rice transplanting frame 20, namely the bearing part of the drive shaft 51, namely the bearing 130, is arranged on the inner surface of one end side of the frame joint 48a, and the flange part 60 is fixed on the frame joint 48a at the outer end of the bearing 130, and at the same time, Compared with the position of the bearing 130, the inner diameter of the frame joint 48a on the side of the flange part 60 is designed to be larger. When the flange part 60 is fixedly installed on the frame joint 48a by welding, even if it is deformed due to welding, Even if the frame joint 48a is somewhat deformed, the assembly of the bearing 130 is not affected, and the bearing 130 can be mounted with good precision.

Have again, in the flange part 61 inner surface that is fixed on the rice seedling feeding gear case 59 of flange part 60, form tapered part and be conical surface 125, between flange part 60 (joint 48a) and conical surface 125, install O The annular ring 126 simplifies the structure and reduces the cost compared with the existing oil seals. The resistance of 125 and O-ring 126 makes rice seedling feeding gear box 59 easy to carry out accurate location.

Equipped with a rice transplanting frame 20 that drives the rice transplanting claws 17 and a rice seedling feed gear box 59 that drives the rice seedling feed shaft 58 on the left and right sides of the rice transplanter frame 20, the rice seedling feed gear box 59 is connected to the rice transplanter. The horizontal gear box part 59b of frame 20 and the vertical gear box part 59a that is connected to rice seedling feeding shaft 58 form roughly L-shaped, and the speed change mechanism 64 that changes lateral feed speed is arranged on vertical gear box part 59a, will change gear The conversion mechanism 131 of the mechanism 64 is arranged on the lateral gear box part 59b, so the lateral feeding speed of the rice seedling loading platform 16 can be easily changed at a low cost by being set as a small-sized rice seedling feeding gear box 59, which is very easy. Ensure the space around the rice seedling feeding gear box 59 well, so that the degree of freedom of design or accessory parts setting is increased. The gear box 59 is removed, thereby improving the maintainability of the transmission mechanism 64 or the conversion mechanism 131 and the like.

In addition, a plurality of sets of conversion gears 62, 63 are used to form the speed change mechanism 64. Since the gears 62a, 63a on one side that are operated by the conversion mechanism 131 are formed of metal, and the gears 62b, 63b on the other side are formed of resin, the metal and resin The combination of made gears 62a, 62b, 63a, 63b can control the friction to be small, and can realize smooth rotation and light weight. At the same time, it can solve the problem of using the displacement mechanism 137 on the conversion mechanism 131. The strength of the gears 62a, 63a side As for the problem of deficiency, the shape of the gears 62, 63 is kept small, and the enlargement of the rice seedling feeding gear box 59 can be prevented.

Equipped with a rice transplanting frame 20 that drives the rice transplanting claws 17, a rice seedling feeding gear box 59 that drives the rice seedling feed shaft 58 on the left and right sides of the rice transplanting frame 20, and a device that adjusts the amount of rice seedlings taken by the rice seedling loading platform 16. Get the seedling amount regulating part and get the seedling amount adjusting shaft 88, because it is to walk around the side from the rear of the rice seedling feeding gear box 59 and protrude the top side of the getting seedling amount adjusting shaft 88 in the front, so use the seedling amount adjusting shaft 88 protects the outside of the rice seedling feed gear box 59, which can improve the durability of the rice seedling feed gear box 59. At the same time, when the fertilization part 36 is installed and fixed, the seedling amount adjustment shaft 88 is used as the fertilization hose 41. The guide member can be used flexibly, and the hose 41 can be well supported without damaging the hose 41 .

Seedling amount adjustment shaft 88 is integrally formed with a substantially L-shaped combined structure by horizontal parts, that is, horizontal shaft portion 88a and longitudinal parts, that is, longitudinal shaft portion 88b, because the simple structure that reduces the number of parts forms the seedling amount adjustment shaft 88, thereby being able to Simplification of installation and cost reduction can be achieved, and problems such as inclusions can be prevented by forming the connecting portion of the horizontal axis portion 88a and the vertical axis portion 88b into a curved portion.

Furthermore, the amount of seedling-taking adjustment shaft 88 is supported on the reinforcing parts 80, 81 of the side frame 23 supporting the rice seedling loading platform 16, thereby reducing the number of parts supporting the supporting parts of the seedling-taking amount adjustment shaft 88, The structure can be simplified and the cost can be reduced.

The seedling-taking amount regulating operation part that will adjust the seedling-taking amount of the rice seedling loading platform 16 is arranged on the side of the seedling transplanting part 15, and the operating part of the regulating lever 89 is made to the outside of the rear wheel and the front of the body. protruding, so that the amount of torsion from the driver's seat position to the operator's body can be controlled as little as possible, and the operability of the seedling-taking adjustment lever 89 can be improved. easily achieved.

By making the seedling-taking amount regulating rod 89 configured between the rear wheel 8 and the auxiliary wheel 37 on its outer side, the space between the limited rear wheel 8 and the auxiliary wheel 37 can be effectively utilized, and the seedling-taking amount regulating rod 89 can be arranged. , so that it can be put into the rice transplanting part 15 compactly.

Furthermore, by disposing the seedling-taking amount adjustment lever 89 on one side of the rear wheel 8, and clamping the rear wheel 8, the rice-planting depth adjustment operation member for adjusting the depth of rice-planting, that is, the rice-planting depth adjustment lever 73, is arranged on the other side, thereby Arranging these levers 73 and 89 that need to be operated on the same side adjacent to the center of the machine body can improve the operability of these.

Equipped with the rice transplanting frame 20 that drives the seedling claws 17 and the rice seedling feeding part that is connected to the rice seedling feeding frame 20 through the rice seedling feeding gear box 59, namely the rice seedling feeding shaft 58, the rice seedling feeding shaft 58 is formed on one side The cam shaft 65 is fed vertically, and the screw shaft 66 is formed horizontally on the other side. At the same time, these cam shafts 65 and the screw shaft 66 are arranged separately from the center of the body to the left and right, thereby reducing the left and right weight of the rice transplanting part 15. The balance is good to keep the rice transplanting accuracy stable. At the same time, the longitudinal feed cam 116 of the longitudinal feed camshaft 65 and the slider 114 of the lateral feed screw shaft 16 are separated from the center of the body from the center of the body, thus making these maintenance easy to carry out.

The two ends of the horizontal feed screw shaft 66 are connected and supported on the rice transplanting frame 20, and at the same time, the two ends of the longitudinal feed cam shaft 65 are supported on the screw shaft 66 and the rice seedling feed gear box 59, so , so that the rice seedling feed gear box 59 and the horizontal feed screw shaft 66 are supported on the rice transplanting frame 20 with good precision, and at the same time, the longitudinal feed camshaft 65 is supported on the rice seedling feed gear box in a double-supported manner. 59 and the screw shaft 66, thereby the lateral feed of the rice seedling loading platform 16 and the longitudinal feed accuracy of the rice seedlings can be improved.

Furthermore, a substantially L-shaped structure is formed to connect the rice seedling feeding gear box 59 to the horizontal gear box part 59b of the rice transplanting frame 20 and the vertical gear box part 59a in the up and down direction, and the vertical feeding cam shaft 65 is extended. Inside the vertical gear box part 59a, the vertical feed cam 116 is made to face the substantially U-shaped space area formed by the rice seedling feed gear box 59 and the camshaft 65, thereby reducing the rice seedling feed gear box 59 and the vertical feed. The lateral space width of the cam portion improves compactness and expands the degree of freedom in the installation and design of other parts.

Claims (8)

1. A rice transplanter, equipped with a rice transplanting frame that drives the rice transplanting claws, a rice seedling loading platform supported on the rice seedling frame that can freely reciprocate left and right, and a rice seedling feeding shaft; the above-mentioned rice seedling feeding shaft is The rice seedling feed shaft connected to the above-mentioned rice transplanting frame through the rice seedling feeding gear box, which includes the rice seedling platform lateral feed screw shaft for performing the lateral feed of the rice seedling loading platform in the left and right direction, and The rice seedling longitudinal feeding camshaft for the longitudinal feeding of the rice seedlings placed on the rice seedling loading platform; The above-cardiac form is arranged separately from the center of the body to the left and right, and the opposite ends are connected to each other. 2. The rice transplanter as claimed in claim 1, characterized in that, the two ends of the above-mentioned rice seedling platform horizontal feed screw shaft are connected and supported on the above-mentioned rice transplanting frame, and at the same time, the two ends of the above-mentioned longitudinal feed camshaft are moved by The rice seedling platform is supported by the feed screw shaft and the above-mentioned rice seedling feeding gear box. 3. The rice transplanter according to claim 1 or 2, wherein the rice seedling feeding gear box is formed in a substantially L-shape with a horizontal gear box part connected to the rice transplanting frame and a vertical gear box part in the vertical direction. The structure is such that the above-mentioned rice seedling longitudinal feeding camshaft is extended and arranged on the inner side of the machine body width direction of the above-mentioned longitudinal gear box part, so that the longitudinal feeding cam arranged on the above-mentioned longitudinal feeding cam shaft faces to be fed by the above-mentioned rice seedling feeding gear box. The roughly U-shaped space area formed by the longitudinal feed camshaft. 4. The rice transplanter according to claim 1, wherein the rice seedling feeding gear box is formed to have a horizontal gear box part connected to the rice transplanting frame and a vertical gear box part connected to the rice seedling feeding shaft The roughly L-shaped, and the speed change mechanism that changes rice seedling feeding speed is arranged on the vertical gear box part, and the conversion mechanism that converts the speed change mechanism is arranged on the horizontal gear box part. 5. The rice transplanter as claimed in claim 1, further comprising a frame joint connecting the above-mentioned rice transplanting frame and the above-mentioned rice seedling feeding gear box; The flange portion on the flange portion and the protruding portion protruding from the flange portion; the rice seedling feeding gearbox has a joint engaging portion on the flange portion that engages the protruding portion of the frame joint. 6. The rice transplanter as claimed in claim 1, characterized in that, it is provided with a seedling-taking amount adjusting member for adjusting the amount of seedling-taking of the above-mentioned rice seedling loading platform, and for the structure of the above-mentioned seedling-taking amount adjusting member, it is possible to enter from the above-mentioned rice seedlings. The rear side of the gear box is protruded to the front side, so that the horizontal member and the vertical member are integrally combined in a substantially L-shape. 7. The rice transplanter according to claim 1, further comprising a mark support member that can fold and freely support the left and right rope marks, one side of the mark support member is fixed to the above-mentioned rice transplanting frame, and is formed by bending on the outside of the machine body. On the other side, at the same time, the bending part of the mark supporting part is arranged in the rice seedling feeding gear box front. 8. The rice transplanter according to claim 7, wherein the rice seedling feeding gear box is disposed between a protection member provided at one end of the hull support member of the rice transplanter and the mark support member.

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