JP2007000071A - General purpose combine - Google Patents

Abstract

[PROBLEMS] Conventionally, when a precleaner is provided at a high position in order to suck outside air with little dust mixed therein, in the case of a combine, there is a problem that it collides with a rotating discharge auger and is damaged.
In order to solve the above problems, the present invention is equipped with a threshing device 3, a glen tank 5 provided with a discharge auger 4, and a cabin 6 on a chassis 2, and before cutting, these are mounted on the front side. In the general-purpose combine in which the processing device 7 is disposed, a pre-cleaner 12 for introducing outside air to the engine 11 on the chassis 2 is disposed between the cabin 6 and the bucket type grain raising device 10, and the bucket type grain raising device. The general-purpose combine is configured to extend upward to a position not higher than the total height of 10.
[Selection] Figure 1

Description

  The present invention relates to a general-purpose combine equipped with a precleaner for introducing outside air into an engine.

  Conventionally, in an intake device that introduces outside air into an engine or an air conditioner, a pre-cleaner and an air cleaner are connected in series, and coarse dust mixed in the sucked outside air is first removed by the pre-cleaner, and further There is known a technique in which the outside air is guided to an air cleaner as two stages and the outside air from which fine dust is removed is supplied to an engine or an air conditioner.

  In particular, in agricultural machinery with a dust removal device such as a combiner, the pre-cleaner is installed at a position as high as possible in the airframe as much as possible because the low outside air has a high dust contamination rate. Configuration is desirable.

For example, Japanese Patent Laying-Open No. 2004-114749 shows a configuration in which a precleaner is raised to a position higher than the roof of a cabin as shown in FIG. 1 attached to the specification. The disclosed invention removes coarse dust and relatively large dust guided together with the outside air with a pre-cleaner, then guides the outside air to the air cleaner, and further performs dust removing action with the air cleaner. In comparison, it is described that there is an advantage that the burden on the air cleaner is greatly reduced, clogging is less likely to occur, and it is not necessary to perform cleaning and replacement of filter media as frequently as before.
Japanese Patent Laid-Open No. 2004-114749

  As already described, when the pre-cleaner is attached to the combiner and sucks the outside air and supplies it to the engine or the like, it is desirable to attach the pre-cleaner to a position as high as possible and suck clean outside air with little dust contamination. For this reason, there are many models of this type of conventional combine in which a precleaner is extended above the cabin roof and attached at a high position.

  However, as is well known, the grain tank is equipped with a discharge auger for discharging the grain out of the machine. This discharge auger is used in the preparation stage of the discharge work and after the discharge work. During the storage, it is indispensable to perform a turning operation to move to a target location while turning 360 degrees above the threshing device, the cabin, or the Glen tank. At that time, the discharge auger is often operated by the operator from the cabin, and there is a problem that the discharge auger collides with the pre-cleaner located at a high position during the turning process in the sky and is damaged.

  The invention described in claim 2 is required to make the vehicle width of the general-purpose combiner as narrow as possible and to have a compact design. In particular, there is a problem that the vehicle width increases when the cabin is equipped with an air conditioner. there were. For this purpose, the present invention is configured by extending the roof of the cabin laterally to form an air conditioner unit mounting portion, and overlapping the air conditioning unit mounting portion in a plan view above the side threshing device. It is a thing.

  In order to solve the above-mentioned problems, the invention described in claim 1 includes a threshing device (3) and a discharge auger (4) on a chassis (2) equipped with a crawler (1). A grain tank (5) and a cabin (6) are mounted, and a pre-cutting treatment device (7) is disposed on the front side thereof, and the pre-cutting treatment device (7) is provided by the threshing device (3). The grain arranged at the front of the grain supply port (8) is connected to the supply conveyor device (9) for conveying the harvested grain, and the threshing device (3) is arranged close to one side. Connected to the tank (5) by a bucket-type cerealing device (10) for supplying the first grain by cerealing, the cabin (6) is the front side of the Glen tank (5), Furthermore, it is arranged on the front side of the threshing device (3) and on the lateral side of the supply conveyor device (9). A pre-cleaner (12) for introducing outside air to the engine (11) installed on the lower side of the ren tank (5) is disposed between the cabin (6) and the bucket type cerealing device (10), and the bucket This is a general-purpose combine that is configured to extend upward to a position that does not become higher than the total height of the type cerealing device (10).

The above-described conventional problems can be solved, and the precleaner (12) can be protected in the preparation stage of the discharging operation and in the process of storing the auger (4) in the auger holder after discharging.
That is, since the pre-cleaner (12) is provided at a position lower than the total height of the bucket type cerealing device (10), the discharge auger (4) that moves while turning upwards does not collide and is safely protected. In spite of this, it is assumed that the outside air that is at a relatively high position and contains little dust can be sucked.

  Next, in the invention described in claim 2, on a chassis (2) equipped with a crawler (1), a threshing device (3), a Glen tank (5) provided with a discharge auger (4), a cabin ( 6), and a cutting pretreatment device (7) is provided on the front side of these, and the cutting pretreatment device (7) is provided at the front of the threshing device (3). (8) is connected to the supply conveyor device (9) that conveys the harvested cereal meal, and the threshing device (3) is placed in the grain tank (5) arranged close to one side, It is provided by being connected by a bucket type mashing device (10) for pulverizing and supplying the grains, and the cabin (6) is a front side of the Glen tank (5), and further of the threshing device (3). The front part and the lateral side of the supply conveyor device (9) are arranged to provide the cabin (6) 13) to the front of the threshing device (3), and a general purpose combine, characterized by being configured air conditioning unit mounting portion (14) protrudes to a position that overlaps in plan view.

  The air conditioner unit mounting part (14) formed by projecting the roof (13) to the side overlaps the upper part of the threshing device (3) to reduce the vehicle width as much as possible and provide a combine with a compact design. Is.

  In the first aspect of the present invention, the pre-cleaner (12) is provided at a position as high as possible so as to suck in the outside air with a small amount of dust, but is lower than the total height of the bucket type cerealing device (10). It has an excellent feature that it can be protected safely by avoiding colliding with the discharge auger (4) that swivels upward.

  And the invention described in claim 2 projects the roof (13) of the cabin (6) to the threshing device (3) side to form the air conditioner unit mounting portion (14), and this portion is used as the threshing device (3). Since it is configured to overlap in plan view, the vehicle width is narrow, and there is a feature that can provide a general-purpose combine with a compact design.

  First, the invention of this application is that a full-throwing type threshing device 3, a Glen tank 5 having a discharge auger 4 that pivots upward, and a cabin 6 are mounted on a chassis 2 equipped with crawlers 1 and 1. The general-purpose combiner is configured by mounting the cutting pretreatment device 7 on the front side thereof. And the said pre-harvesting processing apparatus 7 is connected to the cereal supply port 8 formed in the front part of the said threshing apparatus 3 with the supply conveyor apparatus 9 which conveys a reaped cereal, and the said threshing apparatus 3 is on one side. It is connected to the Glen tank 5 arranged close by a bucket-type cerealing device 10 that feeds and supplies the first grain, and the cabin 6 is located on the front side of the Glen tank 5 and the threshing device. 3 and the side of the supply conveyor device 9 are arranged. The precleaner 12 is configured to introduce outside air into the engine 11 installed on the lower side of the Glen tank 5, and in that case, the precleaner 12 is disposed between the cabin 6 and the bucket type cerealing device 10, The bucket type cerealing device 10 is configured to extend upward to a position that does not become higher than the total height. In the present invention, when the precleaner 12 is attached, it is attached at a high position for sucking in the upper outside air with as little dust as possible, but it is kept at a position lower than the overall height of the bucket type grain raising apparatus 10. There is a characteristic in composition.

  The precleaner 12 configured in this way is lower than the height of the bucket type cerealing device 10 in order to avoid the height colliding with the discharge auger 4 that swivels upward, so that the protection is ensured and the damage is prevented. There is a feature to prevent it.

  Further, the invention of claim 2 is configured such that an air conditioner unit for air conditioning the cabin 6 is installed in an air conditioner unit mounting portion 14 formed by projecting a lateral side portion of the roof 13 to the side. The mounting portion 14 is configured to overlap with the front upper position of the threshing device 3. Therefore, the general-purpose combine according to the present invention has a feature that the width of the vehicle body can be narrowed by the amount of overlap, and a machine with a compact design can be provided.

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, as shown in FIG. 1 and FIG. 2, the general-purpose combiner is equipped with a full-throw-in type threshing device 3 on the chassis 2 equipped with the crawlers 1, 1 with the cereal supply port 8 in front, The terminal part of the supply conveyor apparatus 9 is connected to the cereal supply port 8 from the front. And since the threshing device 3 has a conventionally known structure, the illustration of the internal configuration is omitted. However, the threshing device 3 is spiral so that it can thresh and sort many kinds of grains such as rice, wheat, buckwheat, soybeans, and red beans. A sorting chamber with a vertical barrel that is pivoted in the front-rear direction is arranged on the upper side, and on the lower side is a sorting chamber equipped with a swing sorting shelf, a hot wind tang, and the first and second transfer spirals. Is provided.

  As shown in FIGS. 1, 2, and 3, the pre-cutting processing device 7 is provided with a table 15 connected to the conveyance start end of the supply conveyor device 9, and is scraped sideways on the table 15. The built-in auger 16 is constructed by pivoting.

  As shown in FIGS. 3 and 4, the triangular cover 17 is composed of an upper surface plate 17a and left and right side plates 17b and 17b. The triangular cover 17 is formed in a triangular shape in a side view and is located above the opening of the starting end portion of the supply conveyor device 9. It is configured to be pivotally attached to the top and bottom freely (see FIG. 3). As can be seen from the drawing, the triangular cover 17 has a space on the inner side, and is a terminal portion on the return side of the supply conveyor device 9 (the side rotating from the threshing device 3 to the pre-cutting processing device 7 side, hereinafter the same). , Attached to a position close to the upper side behind the stirrer auger 16, and the return passage of the cereals carried around by the conveyor 9 becomes wider (see the operation diagram of FIG. 3. It rises up).

  As described above, the triangular cover 17 according to the embodiment has a configuration in which the upper machine frame of the opening is fixed and does not spread, but it rotates up and down according to the amount of cereals that the return side of the supply conveyor device 9 carries. When the amount of carried cereals is large, it is pushed to widen the passage and is reduced to the auger 16 side without clogging the carried cereals.

  As shown in FIG. 3, the guide guide 18 provided below the opening has a U-shaped cross section and is attached laterally in front of the conveyance start end portion of the supply conveyor device 9. It is set as the structure which has the function to hold | suppress and hold | suppress the cereal candy which 19 is going to carry around upwards, and to separate from finger 19 and to guide to the conveyor 9 side.

  In this case, the harvested cereal is tried to be lifted upward from the lower side while being caught by the crank finger 19, but when it reaches the guide guide 18, it is scraped off by its front edge and sequentially sent from the front side. While being pushed by the pressing force of the cereals, it is pumped to the conveying start end side of the supply conveyor device 9 at the rear and inherited by the conveyor 9.

  In this way, the guide guide 18 guides the cereals that the crank finger 19 of the stirrer auger 16 is about to move upward to the conveyance start end portion of the supply conveyor device 9, so that the head loss is greatly reduced compared to the conventional case. There are features.

  As shown in FIG. 3, the pre-cutting processing device 7 is provided with a cutting device 20 on the front side of the table 15, and a scraping reel 21 is provided on the upper side of the cutting device 20. A grass basket 22 is provided.

  In the case of the embodiment shown in FIG. 5, the pre-cutting processing device 7 can irradiate both of the work lamps 25 by inverting the work lamp 25 back and forth on the support 24 provided on the machine frame 23 on the upper end of the supply conveyor device 9. It is attached and configured as follows. Therefore, the working light 25 of the embodiment can irradiate the front to make the combine work safe during nighttime work, and if it is turned 180 degrees, the cover (cleaning cover) 26 of the supply conveyor device 9 can be opened. The interior space and the supply conveyor device 9 can be irradiated, and there is an advantage that inspection and maintenance can be performed even at night and cleaning can be performed when the conveyor is clogged with sawdust.

  As shown in FIG. 6, the pre-cutting processing device 7 of the embodiment is configured such that the locking operation of the locking device 27 can be performed by an operator reaching out of the cabin through the window of the cabin 6. Conventionally, a general-purpose combiner adjusts the cutting pretreatment device 7 up and down by the hydraulic cylinder 28 and stops it at the raised position, in order to ensure safety, the base is pivotally attached to the cutting machine frame and the tip is A lock device 27 that mechanically regulates the hydraulic cylinder 28 so that it does not contract by engaging with the edge of the hydraulic cylinder 28 on the chassis 2 side (so that the pre-cutting processing device 7 does not lower) is configured.

  In the case of the embodiment, as shown in FIG. 6, the pre-cutting processing device 7 extends the hydraulic cylinder 28 and raises it to the position of the solid line, and at the stop position, reaches out from the window of the cabin 6 and operates the lock lever 27a. However, the locking device 27 can be fixed so as not to fall. Therefore, if the operator locks the cutting pretreatment device 7 with the locking device 27, the cutting portion does not fall even if the hydraulic oil leaks from the hydraulic cylinder 28 and the holding force of the cylinder decreases. It can be repaired, inspected and maintained with peace of mind.

Thus, the lock device 27 has an advantage that the operator can perform an operation of locking or unlocking from the cabin 6.
Next, as shown in FIG. 1 and FIG. 2, the Glen tank 5 is configured to be installed on the side of the threshing device 3 on the chassis 2 and behind the cabin 6. And, as shown in the drawings, the bucket type cerealing device 10 is arranged between the threshing device 3 and the Glen tank 5, and connects the lower part to the threshing device 3 to thresh and sort the first grain. It is configured such that it is cerealed and supplied to the Glen tank 5 that connects the upper part.

  In this case, the bucket type cerealing device 10 has a low rate of damage to the grains compared to the conventional jumping type cerealing device, so it is often used for harvesting beans. It is suitable for a combine, and as described above, it is arranged between the grain tank 5 and the threshing device 3 and protrudes upward from these.

  Next, as shown in FIGS. 1 and 2, the discharge auger 4 is connected to a bottom of the Glen tank 5 in the front-rear direction and is connected to the lower portion of the discharge spiral 30 so as to stand upright. The grain tank 5 is pivotally connected to and connected to the upper part of the tank so that the grains in the Glen tank 5 are discharged out of the machine. In the case of the embodiment, as shown in FIGS. 7 and 8, in the discharge auger 4, rotational power is input to the terminal portion of the discharge spiral 30 through the input pulley 32 provided at the lower part of the cereal cylinder 31. Simultaneously with the discharge helix 30, the cerealing helix spiraled inside the whipping cylinder 31 is transmitted, and then the spiral in the discharge auger 4 is transmitted continuously.

  In this way, in the discharge auger 4, when the rotational power is transmitted from the discharge spiral 30 via the cereal spiral, the grains in the Glen tank 5 are also inherited in the order from the discharge spiral 30 to the cereal spiral. It is set as the structure discharged | emitted from the grain discharge port 33 conveyed and opened to the auger front-end | tip.

Here, a transmission mechanism until the rotational power is transmitted to the input pulley 32 will be described.
First, as shown in FIG. 7 and FIG. 8, the transmission table 35 is provided firmly fixed to the chassis 2 between the threshing device 3 and the Glen tank 5, and the transmission table 35 is provided at the rear position. In addition, as will be described later, the Glen tank 5, the threshing cylinder 31, and further the threshing device 3 are integrally connected and reinforced. As shown in FIGS. 1, 2, and 7, the transmission pipe 36 has a base fixed to the transmission base 35 and extends rearward, and a transmission pulley 38 is provided at the rear end through a transmission shaft 37 therein. A belt 39 is used for transmission to the input pulley 32 that is provided on a shaft and that is input to the discharge auger 4 described above.

  As shown in FIGS. 7 and 8, the transmission table 35 includes a Glen tank 5 and a cereal cylinder 31 provided at a distance from the Glen tank 5 at a rear side by a plurality of connecting frames 40 and 41. It is configured to be connected and firmly framed so as to be integrated with the chassis 2.

  Although not shown in the drawings, the discharge auger 4 is configured to be connected to a turning mechanism so that the milling cylinder 31 connected to the base can be rotated on the spot, as is conventionally known. The upper part of the cereal cylinder 31 is pivotally connected so that the tip of the grain outlet 33 can be turned up and down and supported by a hydraulic cylinder 42 (see FIGS. 1 and 2). It is configured. Therefore, the discharge auger 4 extends the hydraulic cylinder 42 at the stage of discharge preparation, raises it to the upper space, and turns it by a turning mechanism (not shown) while turning it to a discharge place (for example, a transport truck waiting on a farm road). When the grain discharge port 33 at the front end is aligned with the tank or the discharge operation is completed, the tank can be stored while being swung to the storage position of the general-purpose combiner.

  In the above-described configuration, in the case of the embodiment, as shown in FIGS. 1 and 2, the cereal cylinder 31 is installed rearward from the Glen tank 5, and the rear end 2 </ b> R of the chassis 2 ( The structure is separated from the rear side (see FIG. 1).

  If comprised in this way, the chassis 2 has the characteristics that the whole can be made back-balanced, the running is stable, and a sufficient space can be secured around the milling cylinder 31, so that maintenance is facilitated.

  As shown in FIGS. 1 and 2, the pre-cleaner 12 is configured to introduce outside air into the engine 11 installed below the Glen tank 5. It arrange | positions between the grain apparatuses 10, and is extended and comprised upwards to the position which does not become higher than the full height of the bucket type grain raising apparatus 10. FIG. The precleaner 12 is configured to filter the outside air taken in at the upper part and send it to the lower air cleaner, and supply the engine 11 with air that has been filtered again to remove dust.

  As described above, the pre-cleaner 12 has been extended to a high position in order to suck up the upper atmosphere as much as possible, but is configured to be lower than the overall height of the bucket type cerealing device 10 so as to swirl in the sky. It has the feature that it can be safely protected by avoiding the collision of the discharge auger 4.

  As shown in FIG. 1, the engine room 45 in which the engine 11 is mounted and housed is provided on the front side below the Glen tank 5, and an open / close cover 47 to which a dustproof net 46 is attached is provided on the outside. It can be opened and closed freely. As shown in FIGS. 9 and 10, the opening / closing cover 47 is configured by rotatably supporting a support roller 49 at a lower position on the side farthest from the hinge 48 serving as an opening / closing fulcrum. Then, as shown in FIG. 9, the receiver 50 is disposed on the traveling frame 51 of the chassis 2 between the front and rear lateral edges 52, 52 in a direction substantially transverse to the rotation trajectory of the support roller 49. A concave groove 53 is formed to hold the support roller 49 in engagement. In this case, when the opening and closing cover 47 rotates, the support roller 49 rotates integrally and reaches the traveling frame 51 of the vehicle body 2, gets over the outer lateral edge 52, falls into the concave groove 53, and is held. The opening / closing cover 47 is held in a locked state at the closed position.

  As described above, the opening / closing cover 47 is attached to the lower part of the part away from the pivot point (hinge 48) at the time of opening / closing, and the support roller 49 is attached at the position where the engine room 45 is closed. It is held in a recessed groove 53 of the receiver 50 on the traveling frame 51.

  Conventionally, this type of opening / closing cover has been configured so that the handle (handle) functions as a locking device, so that it can be smoothly opened and closed with the side far from the pivot point (hinge position) hanging over a long period of use. However, there was a defect that when it was closed, there was a gap between it and the surrounding machine frame, and the lock was not fully effective.

  On the other hand, the opening / closing cover 47 of the above embodiment has the support roller 49 that reaches the support 50 at the position where the engine room 45 is closed even when the side far from the hinge 48 is slightly hung down after long-term use. There is an advantage that it can be closed without a gap, a gap is not formed, and dust can be prevented from entering. Further, the receiving device 50 has a feature that the support roller 49 is dropped and held in the concave groove and can sufficiently function as a locking device.

  Next, in the case of the general-purpose combine of the embodiment, the cabin 6 has already been described, and as shown in FIGS. 1 and 2, the front side of the grain tank 5, and the front part of the threshing device 3 and the supply conveyor device. It is set as the structure arrange | positioned on the side with (9). The cabin 6 projects an upper roof 13 to a position where it overlaps the front portion of the threshing device 3 in a plan view to constitute an air conditioner unit mounting portion 14.

  The air-conditioning unit mounting unit 14 saves detailed illustration, but the air-conditioning unit 6 air-conditions the interior of the cabin 6 so that the air-conditioning unit can be cooled and heated. The cabin 6 is capable of working.

  Thus, the general-purpose combine of the embodiment projects the roof 13 on the inner side of the chassis 2 and the threshing device 3 side to form the air conditioner unit mounting portion 14, and this portion is placed on the threshing device 3 in plan view as described above. Since it is configured to overlap, it has the feature that the vehicle width becomes narrower and a combine with a compact design can be provided.

Next, an embodiment of the scraping reel 21 of the pre-cutting processing device 7 will be described.
First, as described above, the take-up reel 21 is supported by a pair of left and right reel support arms 55 and 55 in a suspended state at an upper position of the reaping device 20, and is planted in a field by a suspended take-up rod 56. It is set as the structure which rakes and guides the grain cereal of a state from the upper part to the reaping device 20 side. In the case of the embodiment, the take-up reel 21 is configured to be mounted on the reel support arms 55 and 55 so as to slide freely forward and backward.

  As shown in FIG. 11, the take-up reel 21 is provided with a transmission mechanism on the right reel support arm 55. In the case of the embodiment, the driven shaft 61 is slidably inserted into the distal end portion of the drive shaft 60. It is configured to be a spline fitting that can be expanded and contracted and transmitted.

  As shown in FIGS. 11 and 12, the take-up reel 21 of the embodiment is provided with a moving operation mechanism above the left and right reel support arms 55, 55, but the hydraulic cylinder 62 expands and contracts sequentially from the base side. (Only the left reel support arm), the swing arm 63 and the connection lot 64 are sequentially connected, and the tip end portion is detachably connected by the engagement pin 65.

  As shown in FIGS. 11 and 12, the take-up reel 21 configured as described above extends the hydraulic cylinder 62, the swing arm 63, and the connecting lot 64 to the distal ends of the left and right reel support arms 55, 55. The position on the reel support arm 55 can be adjusted by moving it. Further, even if the position of the take-up reel 21 is adjusted as described above, the driven reel 61 can continue to be transmitted while the driven shaft 61 slides with respect to the drive shaft 60. The take-up reel 21 can be removed by moving it to the tip side of the reel support arms 55 and 55 and removing the engagement pins 65 on the left and right sides.

  Next, as shown in FIG. 13 and FIG. 14, the reel stand 66 is a pair of left and right stand rods 66 a and 66 b, and is pivotally attached to the left and right sides of the reel shaft 67 so as to be freely pivoted. It can be folded and stored along

When the reel stand 66 is used as a stand, the reel stand 66 opens from the reel shaft 67 and stands on the ground as a stand, and a fixing rod 68 is attached and fixed.
Thus, as shown in phantom lines in FIG. 12, the take-up reel 21 is independent from the pre-cutting device 7 when the stand rods 66 a and 66 b are raised and removed from the front end side of the reel support arm 55. Can stand in the state.

  In this way, the take-up reel 21 can continue transmission even if the position is adjusted back and forth by spline fitting of the transmission shafts 60 and 61, and if the reel stand 66 is used, it can be easily removed and attached. There is. In addition, the take-in reel 21 can be easily attached / detached from the pre-cutting device 7 using the reel stand 66 attached to the reel shaft 67, so that it is not necessary to use a large crane for attaching / detaching work as in the prior art. There are special features.

Next, the transmission 70 of the take-up reel 21 will be described.
First, it is known that the take-up reel 21 shifts the rotational take-up speed according to the lying state such as the lying direction and the degree of lying of the cereals in the field, but in the case shown in FIGS. 15 and 16, It is supported by the reel support arm 55 and is configured to be driven to rotate by transmitting rotational power to the reel shaft 67. In the case of the embodiment, the reel shaft 67 is provided with a speed change device 70 between the input shaft 71 on the upper side of transmission and is configured to be able to perform a stepped speed change.

  As shown in FIGS. 15 and 16, the input shaft 71 is configured to be able to transmit power by winding a transmission chain 75 from the transmission sprocket 73 of the transmission shaft 72 on the chassis 2 side to the input sprocket 74. Reference numerals 76 and 77 denote tension sprockets. In the case of the embodiment shown in FIG. 15, the transmission 70 is configured to shift by operating the chain lot 80 from the operation wire 78 via the push arm 79. In the case of the embodiment, the transmission 70 is configured to be able to select a three-stage transmission speed in which the speed is lowered when the engine lot 80 is pushed in, the speed is changed to the standard speed at the intermediate position, and the drawn position is changed at a high speed.

  Thus, as shown in the graph of FIG. 17, the number of shift stages can be changed in three stages in relation to the vehicle speed, and the shift operation is performed by the control motor 81 connected to the end of the operation wire 78. The speed can be changed based on the ON / OFF operation.

  In this case, when the transmission 70 is configured to be able to automatically change the position of the take-up reel 21 in the front-rear direction, for example, automatically in relation to high speed at the front position, standard speed at the intermediate position, and low speed at the rear position. Easier work can be done without the need for gear shifting operations.

  If comprised in this way, although the picking reel 21 will change a position back and forth according to the height of a crop, and the degree of lodging, a rotational speed will be automatically changed in connection with it. Then, the operator can work easily, and at the same time, there is an advantage that head loss is reduced and efficient work can be performed.

  As shown in FIGS. 18 to 20, the speed change device 70 is configured to change speed by providing a speed change operation switch 88 in the steering lever 85 installed in the cabin 6 or the grip portion 87 of the speed change lever 86. Then, there is an advantage that a speed change operation can be performed from the control seat. In this case, the control motor 81 is electrically connected to the shift operation switch 88, and is switched to forward rotation or reverse rotation by the operation of the shift operation switch 88 and pushes the operation wire 78. While pulling, as shown in FIG. 17, the gear shifting operation can be performed at the three gear positions.

  Note that the transmission 70 described above uses a type of configuration widely used for touring bicycles. Therefore, even if the driving force on the driving side is suddenly stopped, the take-up reel 21 continues to idle due to inertia. Since the transmission system is configured as a one-way transmission, there is an advantage that a series of transmission mechanisms are not damaged.

Next, an embodiment of the lateral width reducing mechanism of the take-up reel 21 and the overall width reducing mechanism of the pre-cutting processing device 7 including the take-up reel 21 will be described with reference to FIGS.
Conventionally, a general-purpose combiner has become a harvester that increases the work efficiency by making the width of the front cutting pretreatment device 7 wider than that of the rear vehicle width so as to enable multi-row cutting.

Therefore, conventionally, when a general-purpose combiner is transported over a long distance, two ordinary trucks are required for transporting one unit, and there has been a problem that it becomes a very uneconomical machine.
The embodiment described below relates to a technique for reducing the width of the single take-up reel 21 and the pre-cutting processing device 21 to the width of the rear combine vehicle body so that one general purpose combine can be loaded on one truck. It is.

  First, in the embodiment shown in FIG. 21, the take-up reel 21 is configured such that the central reel shaft 67 is a double shaft that expands and contracts a pipe shaft 67 a and a sliding shaft 67 b, and is connected by a support arm 90 around the shaft. Similarly, the Lilith rat mounting shaft 91 is configured to be a telescopic free double shaft by inserting the sliding shaft 91b into the pipe shaft 91a. As shown in the drawing, the electric cylinder 92 is attached along the pipe shaft 67a, and the tip of the piston 92a is connected to the sliding shaft 67b.

  Alternatively, the take-up reel 21 is formed by bending a sliding shaft 67b inserted into a pipe shaft 67a constituting a central reel shaft 67 and a reel slat mounting shaft 91 outside thereof as in another embodiment shown in FIG. A support arm 90 may be attached between the two parts, and the reel slat attachment shaft 91 may be bent while spreading outwardly as the electric cylinder 92 expands and contracts to reduce the reel width.

  Next, in the embodiment shown in FIG. 23, the pre-cutting processing device 7 reduces the left side portion (left reel support arm 55) from the normal work position indicated by the phantom line to the position indicated by the solid line on the right side. The width can be reduced. In this case, the pre-cutting processing device 7 forms each member arranged in the lateral direction in a double structure that can be expanded and contracted, and laterally moves to a position corresponding to the left end of the threshing device 3 at the rear to reduce the width. It is configured.

Note that the pre-cutting processing device 7 can be reduced to a width that fits within the lateral width of the truck bed 95 shown at the left end of FIG.
If comprised in this way, as shown in FIG. 23, a general purpose combine will carry out the loading operation | movement by hanging the left and right step board 96 on the loading platform 95 of a normal truck, and it will be the width which can be loaded, and it is 1 unit | set in one tractor. There is a feature that can be loaded and transported.

  Next, as shown in FIGS. 24 and 25, the lock device 97 is attached to the fixing machine frame 98 of the pre-cutting processing device 7, and the sliding rod 101 that slides has a wide working position and a reduced position in which the lateral width is narrowed. And can be locked at both parts. Then, as shown in FIG. 25, the engagement rod 99 is pivotally attached to the lower portion of the lock lever 100, and the rear side of the engagement rod 99 is inserted into the fixed machine frame 98 so as to slide freely in the lateral width direction. It is configured to be inserted and removed freely through the lock.

  In the safety switch 102, the slide-side switch piece 102a and the tip switch piece 102b of the engagement rod 99 are in the contact position (when the pre-cutting processing device 7 is in the widest position / working position) and the non-contact position. (When all positions other than the work position / positions on the reduction side). The safety switch 102 is incorporated in the starting circuit of the engine 11 and can be started by being energized when turned on.

  Therefore, the safety switch 102 is turned on when the pre-cutting processing device 7 is widened to the normal working position and the switch pieces 102a and 102b are in the contact position, and the engine 11 is started. The engine 11 cannot be started at all positions where the lateral width other than the position is slid to the reduction side.

  In this way, as shown in FIG. 24, the locking device 97 has a position of the imaginary line where the left side frame of the pre-cutting processing device 7 is widest so that the work can be performed, and slides to the right side to the width of the truck bed 95. If the lock lever 100 is operated to the engagement side at the position of the solid line reduced to the maximum, the lock can be surely performed. At that time, as described above, the safety switch 102 is turned on at the work position, and is turned off at all other reduced positions.

  As described above, the embodiment of the present invention is characterized in that the lateral width reducing mechanism of the pre-cutting processing device 7 is equipped with the lock device 97 and the safety switch 102 so that the lateral width can be reduced to the width of the tractor loading platform 95. However, it also has a unique effect of improving work safety and product durability.

Side view of general purpose combine Top view of general purpose combine Internal side view of a part of the cutting pretreatment device Slope view showing part of the pre-harvest processing device Side view of general-purpose combiner Side view of the cutting pretreatment device Rear view of the general-purpose combiner Rear view of general purpose combine Slope view of the engine room opening / closing cover Side view of the cover Top view of the take-in reel Side view of take-in reel Slope view of take-up reel stand Top view of the stand 杆 stored on the reel shaft Plan view of transmission mechanism of take-in reel Side view of the take-up reel transmission mechanism Graph showing the three-stage shift of the take-up reel Top view of general purpose combine Slope view of steering lever Slope view of shift lever Action plan view of the take-up reel Action plan view of the take-up reel Action plan of general purpose combine Action plan view of the pre-cutting device Cutting device side view

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Crawler 2 Chassis 2R Rear end part 3 Threshing device 4 Discharge auger 5 Glen tank 6 Cabin 7 Pre-harvest processing device 8 Grain supply port 9 Supply conveyor device 10 Bucket type grain raising device 11 Engine 12 Precleaner 13 Roof 14 Air conditioner Unit mounting part.

Claims (2)

  On a chassis (2) equipped with a crawler (1), a threshing device (3), a Glen tank (5) equipped with a discharge auger (4), and a cabin (6) are mounted, and they are trimmed in front of them. A pre-treatment device (7) is disposed and provided, and the pre-harvest processing device (7) supplies the harvested cereal to the cereal supply port (8) formed at the front of the threshing device (3). Bucket-type threshing, which is provided by being connected by a conveyor device (9), and the threshing device (3) supplies the first grain to the Glen tank (5) arranged close to one side. Connected by a device (10), the cabin (6) is on the front side of the grain tank (5), further on the front of the threshing device (3), and next to the supply conveyor device (9). The outside air is introduced into the engine (11) installed on the lower side of the Glen tank (5). A pre-cleaner (12) is disposed between the cabin (6) and the bucket type flouring device (10) and extended upward to a position not higher than the overall height of the bucket type flouring device (10). General-purpose combine that is characterized by its construction.   On a chassis (2) equipped with a crawler (1), a threshing device (3), a Glen tank (5) equipped with a discharge auger (4), and a cabin (6) are mounted, and they are trimmed in front of them. A pre-treatment device (7) is disposed and provided, and the pre-harvest processing device (7) supplies the harvested cereal to the cereal supply port (8) formed at the front of the threshing device (3). Bucket-type threshing, which is provided by being connected by a conveyor device (9), and the threshing device (3) supplies the first grain to the Glen tank (5) arranged close to one side. Connected by a device (10), the cabin (6) is on the front side of the grain tank (5), further on the front of the threshing device (3), and next to the supply conveyor device (9). The cabin (6) has an upper roof (13) arranged at the front of the threshing device (3). , General purpose combine, characterized by being configured air conditioning unit mounting portion (14) protrudes to a position Obarappu in plan view.

Images