JP2003289718A - Threshing equipment - Google Patents

Abstract

(57) [Problem] To provide a threshing apparatus in which the processing efficiency of an object to be processed in a threshing apparatus, particularly in a second processing chamber portion, is increased. SOLUTION: A handling cylinder 69 for separating a grain from a grain stem.
And a dust treatment cylinder 7 having a spiral 71a which is adjacent to the handling chamber 66 and processes a processing object mainly composed of straw.
1 is provided, and a second processing chamber 67 is provided above the dust processing chamber 68 and provided with a second processing cylinder 70 for processing a second material in the grain after threshing. Was. Second processing cylinder 70
The second drop from the spiral 71a on the front side of the dust treatment cylinder
And falls on a collecting member (the receiving net 74, the swinging shelf 51, etc.) while being conveyed rearward, so that the grain collecting efficiency is improved.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a threshing device mounted on a combine or the like.

[0002]

2. Description of the Related Art A conventional technique for threshing a combine harvester for agriculture using a crawler as a traveling means will be described as an example. The combine makes the landing area of the infinite tracks that make up the crawler wide, and enables free running even in weak fields such as paddy fields for agricultural work such as mowing work.

The combine has an engine as a power source and uses the power generated by the engine for traveling, harvesting, threshing, etc. of the combine. The crawler drives the power of the engine by shifting the power of the engine by a traveling transmission. The traveling transmission is composed of a hydrostatic continuously variable transmission, a gear train mechanical transmission, a differential gear, clutch, braking, etc.When driving straight, a pair of left and right crawlers are driven at a constant speed. , When turning the combine to the left and right, drive by giving a speed difference to the left and right crawlers, the high speed side crawler to the outside, the low speed side,
The crawler on the stop side or the retreat side can be turned inside.

The grain culms cut by the reaping device are sent to the threshing device, threshed, and then temporarily stored in the Glen tank. The grains stored in the Glen tank are discharged from the auger to a truck or the like.

FIG. 14 is a side sectional view of a conventional threshing apparatus, FIG. 15 is a plan sectional view (a view taken along the line BB in FIG. 14), and FIG. 15 is an elevation sectional view (a view taken along the line CC in FIG. 14). 16) is shown in FIG. Conventionally, the grain culm cut by the reaping device has a grain culm conveying and adjusting device mounted on the reaping device, and the handling depth thereof is adjusted by the grain removing device 15.
It is inserted into the handling chamber 66 from the inlet 66a of the handling chamber 66, which is the main threshing portion. In the handling chamber 66, while the grain culms are transferred in the direction of arrow A, a plurality of handling teeth 69a and handling nets 74 are provided on the surface of the handling barrel 69 mounted on the handling chamber 66 and rotate in the direction of arrow B.
Threshed by interaction with. The object to be processed (grains and straw debris) separated from the grain culm passes through the handling net 74 in the direction of arrow C1 and is received by the swing shelf 51.

Since the swing shelf 51 swings in the vertical and forward / backward directions, the object to be processed moves in the direction of the arrow D while being wind-selected by the blowing air from the Kara 79, and the grains having a high specific gravity are moved to the sheave 53 and the sheave 53. It passes through the sorting net 63 in the direction of arrow E, is stacked on the first shelf plate 64, and is conveyed from the first spiral 65 to the grain tank via the first fried cylinder (not shown). The grain stored in the grain tank is transported to the outside of the combine via the auger.

[0007] Among the objects to be processed on the rocking rack 51, the light ones are blown by the rocking action of the rocking rack 51 and the air blown by the fan of the Kara 79, and move on the sheave 53 in the direction of arrow D. The small-sized second grain on the straw rack 62 drops in the direction of arrow G, is collected on the second shelf plate 85, and is conveyed to the second-fried grain cylinder 87 by the second spiral 86.

The second grain is a normal grain, a branch grain, a mixture of straw chips, and clam grains in which the normal grain is stuck in the straw chips. Is lifted in the direction of the arrow H by a second frying tube spiral (not shown), and is discharged from the second processing chamber inlet to above the second processing chamber 67.
The second processing cylinder 70 mounted on the lower part of the second processing chamber 67 rotates in the direction of arrow J. The second grain is separated from the second grain and removed from the branch stem of the branch stem while proceeding in the direction of arrow I while colliding with a large number of treated teeth 70a planted in the second handle cylinder 70. , Some of the objects to be processed are indicated by the arrow C2 from the second processing cylinder receiving net 75.
In the second processing chamber 67, most of the objects to be processed fall from the end of the second processing chamber 67 to the second processing cylinder blower blade 70b.
Is sent to the swing shelf 51 in the direction of arrow C3 and joins with the object to be processed from the handling chamber 66.

Among the objects to be processed that have reached the end of the handling chamber 66 in the direction in which the objects are conveyed, short objects such as straw chips are
It is delivered from the dust treatment chamber inlet 68a in the direction of arrow A2,
The dust processing chamber 68 enters the dust processing chamber 68, and in the dust processing chamber 68, straws and the like left while being conveyed in the arrow K direction are crushed and processed by the spiral 71a of the rotating dust processing cylinder 71.
Leakage material in the object to be treated, which mainly contains straw particles containing a small amount of grains, which has entered the dust treatment chamber 68, passes through the catch net 76 in the direction of arrow C4 and is transferred onto the transfer rack 51a of the rocking rack 51. Sent to.

[0010]

As described above, in the conventional threshing device 15, in the second processing chamber 67, the second fried cylinder 8 is used.
The second processed material falling from No. 7 on the second processing cylinder 70 is processed while being transferred to the front, and is dropped from the front in the direction of arrow C3 and accumulated on the swing shelf 51. Then, it falls on the rocking rack 51 together with miscellaneous processed materials including grains and straw that are processed by the handling cylinder 69.

In the swing shelf 51, the second ones are stacked together with the first one on the first shelf board 64, and the first helix 65 to the first fried cylinder 8
It is conveyed to the Glen tank 30 via 7.

However, in the above construction, the second one is the first spiral 6
5 falls on the rocking shelf 51 from the front side of the second processing chamber 67, which is the farthest position from 5, and the first spiral 65
Since it was mixed with various processed products including not only grain but also straw waste by the time it was transported by the first fried cylinder 87, there was room for improvement in the processing efficiency of the second product.

Further, in the conventional threshing device 15, the second processing cylinder 70 is arranged below the dust processing cylinder 71, and a part of the object processed by the dust processing cylinder 71 is partially processed by the second processing cylinder 71. 7
Since it falls on 0, it is inevitable that the second processed product is mixed with the processed products from the dust treatment cylinder 71, such as straw waste other than the grains, and the processing efficiency of the second processed product is reduced accordingly. There wasn't.

Further, a second processing cylinder 70 and a dust processing cylinder 71
Since the respective rotary shafts are relatively distant from each other and are driven by different drive systems from the engine, the configuration of the drive system is relatively complicated and there is room for improvement.

Therefore, an object of the present invention is to provide a threshing device in which the treatment efficiency of the object to be treated in the threshing device, particularly in the second treatment chamber portion is increased.

[0016]

The above-mentioned problems of the present invention can be solved by the following constitutions. The invention according to claim 1 includes a handling chamber 66 provided with a handling barrel 69 for separating grains from the culm, and a spiral 71a which is adjacent to the handling chamber 66 and which processes a processed product mainly composed of straw waste. A second processing cylinder 68 having a dust processing cylinder 71 is provided, and a second processing cylinder 70 is provided above the dust processing chamber 68 to process a second product in the grain after threshing. It is a threshing device provided with a processing chamber 67. According to the first aspect of the present invention, the second object falling from the second processing cylinder 70 is conveyed backward by the spiral 71a on the front side of the dust processing cylinder while being collected toward the recovery member (the receiving net 76, the swing rack). 51), the collection efficiency of the grain is improved.

According to a second aspect of the present invention, the second processing cylinder 7 is provided.
The numeral 0 is the threshing device according to claim 1, wherein the second object is conveyed from the rear to the front, and is configured to be returned to the starting end side of the dust removal processing cylinder 71. According to the second aspect of the present invention, most of the objects to be processed that are sent to the second processing chamber 67 are singulated while being transferred to the front of the second processing chamber 67 by the second processing cylinder 70. Almost all of the branch stem particles and the panicle particles including the single particles are evenly dropped on the collecting member (the receiving net 74, the swing rack 51, etc.) in the longitudinal direction of the rotation axis of the dust removal processing cylinder 71 of the dust removal processing chamber 68. The grain can be efficiently collected. In addition, the straw waste is further sent to the dust processing cylinder 71, and is processed during the longitudinal transfer to collect the powder particles. The second processing cylinder 7 during the transfer of the processed material to the dust processing cylinder 71.
Since 0 is provided, the dust disposal processing can be performed during the transfer to the dust disposal cylinder 71, and the dust disposal capacity is improved as compared with the conventional case.

The invention according to claim 3 is the threshing device according to claim 1, wherein the rotational power source of the second processing cylinder 70 is connected to the rotational power source of the dust removal processing cylinder 71. According to the third aspect of the present invention, the rotational power source of the second processing cylinder 70 and the rotational power source of the dust processing cylinder 71 can be shared.

[0019]

According to the first aspect of the present invention, the second processing drum 70 almost makes the branch stem particles and the cuttings containing the single particles into single particles so that the processing efficiency of the object to be processed becomes higher than the conventional one. ,
In addition, the processing efficiency of the object to be processed by the dust processing cylinder 71 is correspondingly higher than before.

According to the second aspect of the invention, the swing shelf 51 is provided.
The sorting performance of the grains falling on the top is better than before.

According to the third aspect of the present invention, the driving device can be simplified by using the rotational power source of the second processing cylinder 70 and the dust processing cylinder 71 in common.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a left side view of a combine for performing a grain harvesting operation according to an embodiment of the present invention, FIG. 2 shows a front elevation view of the combine, and FIG. 3 shows a plan view of the combine.

At the lower part of the traveling frame 2 of the combine 1 shown in FIGS. 1 to 3, there are a pair of left and right crawlers 4 formed of a flexible material such as rubber into an endless band,
Not only in the dry field but also in the wet field, the crawler 4 is provided with a traveling device 3 that can travel freely by slightly sinking, and a reaping device 6 is mounted on the front part of the traveling frame 2.
An engine 28 (FIG. 9), a threshing device 15, a cockpit 20, and a Glen tank 30 are mounted on the upper portion of the traveling frame 2.

The reaping device 6 is constructed so that the whole reaping device 6 can be moved up and down by the expansion and contraction action of a reaping lifting cylinder (not shown) so that the grain stalks vegetated in the field can be cut at a predetermined height. A weeding tool 7 is arranged below the front end of the mowing device 6, an inclined grain culm raising device 8 is arranged behind it, and a cutting blade (not shown) is arranged at the rear bottom part thereof. Between the cutting blade and the starting end of the feed chain 14 of the threshing device 15, a front transport device (not shown), a handling depth adjusting device, a feeding transport device, and the like can be used to successively transfer the grain stems and adjust the handling depth. Are arranged as follows.

The harvesting device 6 of the combine 1 is operated as follows. First, start the engine 28 to change gears,
When operating the operating levers for steering such that the combine 1 moves forward, and operating the harvesting and threshing clutch (not shown) to transmit the rotating parts of the machine body, the traveling frame 2 travels forward. Mowing and threshing work is started. The grain culm to be planted in the field is subjected to the weeding action by the weeding tool 7 located at the lower front end of the cutting device 6, and then raised to the upright state if it is in the lodging state by the raising action of the grain culm raising device 8. The root of the grain culm reaches the cutting blade and is mowed, scraped by the front transport device and transported to the rear, inherited by the handling depth adjusting device and the supply transport device, and successively in the upper part of the rear part in a continuous state. Be transported.

The grain culm is fed from the feeding and conveying device to the feed chain
It is inherited at the starting end of No. 4 and supplied to the threshing device 15.
The threshing device 15 has a handling chamber 66 in which a handling barrel 69 is mounted on the upper side, and a sorting unit 50 is integrally provided below the handling chamber 66.
Throwing and sorting the supplied cut culms.

The grain culm supplied to the threshing device 15, which will be described in detail later, is inserted into the handling chamber 66 which is the main threshing section,
A large number of handle teeth 69 of a handle cylinder 69 which is pivotally mounted on the handle chamber 66 and rotates.
a, the transfer by the feed chain 14, and the interaction with the handling net 74, threshing is performed, and the objects to be processed (grains and straw debris) are received by the swing shelf 51 of the sorting unit in the threshing device 15,
While moving on the rocking shelf 51 that rocks in the up-down and front-back directions,
Grain that has a high specific gravity passes through the sieve 53 and the sorting net 63, and the grain with a high specific gravity passes through the wind from the Kara 79, and the heaviest grain that has a conveying spiral (not shown) is built in from the first spiral 65. It is conveyed to the Glen tank 30 through the cylinder 16 (see FIG. 1) and is temporarily stored in the Glen tank 30. As shown in FIG. 1, the tank body 3 is placed on the longitudinal axis of the first deep-fried grain cylinder 16.
The paddy discharge port 311a of 1a and the paddy discharge port 311b of the auxiliary tank 31b are provided.

The remaining threshed culms that have reached the end of the handling chamber 66 of the threshing device 15 and are still long are sandwiched between a straw chain and a straw tip chain (not shown) and conveyed to the threshing device. It is thrown into the straw cutter at the rear part of 15 and cut, and is discharged to the field.

A grain tank spiral (not shown) for grain transfer is provided at the bottom of the grain tank 30, and a spiral drive shaft (not shown) for driving the grain tank spiral is composed of a vertical auger 18 and a horizontal auger 19. The discharge auger is connected to discharge the grain stored in the grain tank 30 to the outside of the combine 1 through the discharge auger discharge port. Glentank spiral, vertical auger spiral (not shown) and horizontal auger spiral (not shown)
Is rotationally driven by the transmission of the power of the engine 28,
The stored grain is conveyed by the screw conveyor action of each spiral blade.

FIG. 4 is a partially cutaway side sectional view of the combine threshing device 15, FIG. 5 is a plan sectional view of the threshing device 15 taken along the line BB of FIG. 4, and FIG. C-C
It is an elevation sectional view of the threshing device 15 as seen from the direction of the arrow.

The grain culms harvested by the harvesting device 6 are harvested by the harvesting device 6.
The handling depth is adjusted by the grain culm transportation and adjustment device attached to the
Entrance 66a of the handling room 66 which is the main threshing part of the threshing device 15.
(FIG. 6) is inserted into the handling chamber 66. The handling cylinder 69 mounted on the handling chamber 66 is provided with a large number of handling teeth 69a on the surface thereof, and a drive mechanism (not shown) allows the power from the engine 28 to pass through the mowing and threshing clutches and the pulleys 128, 1
29 and the belt 130 to rotate in the direction of arrow B in FIGS. The grain culm with the grain inserted into the handling chamber 66 is pinched between the feed chain 14 moving along the rail guide 14c and the feed chain pinching rod 14a biased by the spring 14b, Arrow A2 in FIG.
Handling cylinder 69 that rotates in the direction of arrow B while being transferred in the direction
Threshing is caused by the interaction between the handling tooth 69a and the handling net 74. The objects to be treated (grains and straw debris) separated from the grain culm pass through the handling net 74 in the direction of arrow C1 (FIG. 6), and swing rack 51
Can be accepted by.

Since the rocking rack 51 rocks in the vertical and longitudinal directions by the operation of a rocking rack driving mechanism (not shown), the workpiece is moved in the direction of arrow D (FIG. 4) while receiving the air blow from the Kara 79. Grain having a high specific gravity passes through the sheave 53 and the sorting net 63 in the direction of arrow E, is accumulated on the first shelf board 64, passes from the first helix 65 to the highest fried cylinder 16, and then the grain tank 30. Be transported to. The grains stored in the Glen tank 30 are combined 1 via the augers 18 and 19.
Be transported to the outside.

Among the objects to be processed on the rocking rack 51, the light ones include the rocking action of the rocking rack 51 and the fan 79a of the Karako 79.
Is blown away by the blast of air and moves on the sheave 53 in the direction of arrow D, and the second small grain on the straw rack 62 falls in the direction of arrow G and is collected by the second shelf board 85. It is conveyed to the second deep-fried grain cylinder 87 by the number spiral 86 (FIG. 4).

The second grain is a normal grain, a branch grain, a mixture of straw chips and clam grains in which the normal grain is stuck in the straw chips, and the second grain kernel 87 Are lifted in the direction of arrow H (see FIG. 4) by the second frying tube spiral (not shown), and are discharged from the second processing chamber inlet to above the second processing chamber 67. The second processing cylinder 70, which is mounted on the lower portion of the second processing chamber 67, rotates in the direction of arrow J in FIG. 6 by a driving device (not shown). The second grain is separated from the second grain and the branch stem of the branch stem while advancing in the direction of arrow I (Fig. 4) while colliding with a large number of treated teeth 70a planted in the second treating cylinder 70. And a part of the object to be processed passes through the receiving net 75 provided below the second processing cylinder 70 in the direction of arrow C3, and the dust treatment chamber 6 is removed.
Most of the object to be processed falls from the end of the second processing cylinder 70 in the direction of arrow C2 to the dust processing cylinder 71 of the dust processing chamber 68.
Fall on. By rotating the dust removal processing cylinder 71 in the direction of arrow N,
The object to be processed is conveyed in the direction of arrow P by the processing teeth 70a. In the process, almost all of the handling net 74 drops, the grains pass from the handling net 74 in the direction of the arrow C1 and drop to the rocking shelf 51, and most of the objects to be processed are removed from the handling chamber 66. Merge with the object to be processed. A spiral may be provided on the second processing cylinder 70 instead of the processing teeth 70a.

Most of the objects to be processed which are sent to the second processing chamber 67 are conveyed to the front of the second processing chamber 67 by the second processing cylinder 70, and branch stem particles and panicles containing single particles are almost single. The teeth 71 of the dust processing body 71 of the dust processing chamber 68 that has been granulated
While being conveyed in the direction of arrow P by a, it falls evenly on the handling net 74 in the longitudinal direction of the rotation axis of the dust processing cylinder 71,
The grains can be efficiently collected by being sent from the receiving net 74 to the swing shelf 51.

Further, among the objects to be processed that have reached the end portion in the conveying direction of the object to be processed in the handling chamber 66, short ones such as straw chips are
The dust is introduced from the dust treatment chamber inlet 68a in the direction of arrow A2 (FIG. 5) into the dust treatment chamber 68, and in the dust treatment chamber 68, the spiral 71a of the rotating dust treatment cylinder 71 causes the arrow K direction (FIG. 5). It is processed while being transported to.

Leakage material (grains) in the object to be treated, which is mainly made of straw waste and contains a small amount of grains, entered the dust treatment chamber 68 from the catch net 76 (FIG. 6) on the swing shelf 51. Fell to the rocking shelf 5
The second processing chamber 67 is guided from the second processing rack 85 to the second processing container 87 via the second lifting grain cylinder 87.
Sent to.

Conventionally, the second material processed in the second processing chamber 67 is dropped onto the rocking rack 51 from the front side of the second processing chamber 67, which is the farthest position from the first spiral 65,
By the time it is transported from the first helix 65 to the first deep-fried cylinder 87, it will be mixed with various processed products including not only grain but also straw waste, but it can be said that the processing efficiency of the second product is good. There wasn't. However, in the configuration of the present invention, not only the second object is supplied to the second processing cylinder 70, but the second processing object is evenly dropped on the rocking shelf 51 while being conveyed in the direction of the arrow P by the dust processing cylinder 71. Therefore, the sorting performance of the workpieces on the swing shelf 51 is higher than that of the conventional technique.

The dust removal cylinder 71 is driven from the engine 28 via the pulley 101 via the pulley 102 provided coaxially with the pulley 101 to the belt 103 and the pulley 105 via the drive shaft of the dust removal cylinder 71 to the pulley. The second processing cylinder 70 is driven by the pulley 106 having a rotation shaft provided via the belt 107 and the belt 108. Therefore, when the dust removal processing cylinder 71 is driven, the second processing cylinder 70 is also driven at the same time. Furthermore, since the drive system for the dust processing cylinder 71 is also transmitted to the second processing cylinder 70, the structure of the drive transmission system can be simplified.

Further, since the dust removal processing cylinder 71 and the second processing cylinder 70 rotate in the same direction, the straw chips are sheared and broken at the take-over portion of the two processing cylinders 70, 71, so that the performance is improved.

In this embodiment, a plurality of dust collecting fans (cross flow fans) 132, 13 are provided above and in front of the dust collecting port of the swing shelf 51.
3 is provided, and the frontmost dust removal fan 132 has saw-toothed teeth with the rear of the rocking rack as a mounting portion facing the tip of the jump base 134 having an upper surface. Therefore, the straw chips that are likely to be sent to the rear end of the dust removal processing cylinder 71 and become clumped are pushed backward by the saw-like teeth of the jump base 134, and the plurality of dust removal fans 132,
Since 133 is provided, the jump base 134 and the dust removal fans 132 and 133 can easily suck and dust the straw waste backward over a wide area of the swing shelf 51, and the threshing ability can be improved.

The mixture of paddy (grain) and straw waste discharged from the handling barrel 69 is separated into paddy and straw waste on the straw rack 62, and the straw waste is not discharged to the swing shelf 51.
Since only the straw waste can be immediately sucked by the suction fan and discharged to the outside, the load of swing selection of the swing shelf 51 is reduced and the threshing ability is improved as compared with the conventional art.

Straw rack 6 attached to swing shelf 51
2 has its swing base mounted at the rear of the swing shelf 51,
With the configuration in which the front of the Straw rack 62 is the free end, the sorting wind of the No. 2 Kara Noh fan 109 is applied to the tip of the Straw rack 62, and the wind sorting capability of the paddy and straw waste can be enhanced compared with the conventional case.

As shown in the rear perspective view of the swing shelf 51 of the threshing device 15 of FIG. 7, a straw rack 62 having the rear of the swing shelf 51 as a fulcrum of rotation is provided via an arm 110 of the swing shelf 51 and a spring 111. It is also possible that the tip end of the straw rack 62 descends as the amount of accumulated straw debris on the straw rack 62 increases or decreases, so that the sorting wind of the second Karako fan 109 can easily hit.

According to the above construction, when the amount of straw debris falling from the rear of the sheave 53 onto the Straw rack 62 increases, the tip of the Straw rack 62 goes down, and the second Karako fan 1
Received a strong sorting wind of 09, moved and sorted straw waste backward,
Straw waste can be promptly discharged to the outside of the machine. Also,
When the amount of straw debris is small, the tip of the straw rack 62 rises until it hits the spring stopper 113, the wind speed of the second Karako fan 109 becomes weak, slow transfer sorting can be performed, and sorting accuracy can be improved, The load on the Straw rack 62 can always be kept constant regardless of the amount of straw debris.

Further, as shown in the rear perspective view of the rocking rack 51 of the threshing device 15 in FIG. 8, the amount of the object to be processed (second ring amount) supplied to the second processing chamber 67 becomes constant. In addition, the inclination angle of the Straw rack 62 with the rear of the swing shelf 51 as a pivot may be controlled.

As shown in FIG. 8, the tilt angle control motor 114 of the stroll rack 62 is attached to the swing rack 51, and the stroll rack is detected by the detection value of the second ring amount detecting sensor provided in the second frying tube 87. The inclination angle of 62 may be adjusted up and down.

With this configuration, the second ring amount becomes constant, the load of the handling chamber 66, the load of the swing shelf 51, or the load of the second processing cylinder 70 is kept constant, and the threshing performance can be stabilized. it can. When the amount of the second ring increases, the load on the threshing device 15 increases, and the engine drop (this causes the swing rack 5
1 rotation decreases and loss increases).
It leads to the generation of damaged grains.

As shown in FIG. 4, when the stroll rack 62 having a swing fulcrum at the rear of the swing rack 51 can be rotated rearward about the swing fulcrum and can be inverted outside the rack with one touch, the stroll rack 62 can be moved. Maintaining the second spiral 86, etc. and swinging the shelves 51 in a state of being inverted and moved out of the shelves.
Internal maintenance becomes easy.

As shown in the plan view of FIG. 9, the fan 79a of the Karasu 79 is provided over almost the entire width of the threshing device 15, and a turbofan 97 for blowing air to the Karatsu 79 is provided outside the machine frame of the threshing device 15. Therefore, the amount of Karato wind is increased more than before without changing the size of the aircraft. Engine 2
The power of No. 8 is transmitted to the Kara-mino fan 79a and the turbo fan 97 via the pulley 28a, the belt 96 and the pulley 79c, and the Kara-mino shaft 79b of the Kara-mino fan 79a is extended and used as the rotation axis of the turbo fan 97. Further, the rotary shaft 109a of the second Karako fan 109 is interlocked with the rotary shaft 79b of the Karano fan 79a via the transmission 116.

With the configuration provided with the turbo fan 97, it is possible to interlock with the change of the rotational speed of the turbo fan 97 and to interlock with the rotational speed of the second No. sardine fan 109.

With the above configuration, the rotation speed of the turbo fan 97 is changed according to the operating state of the threshing device 15, and
The air flow rate of the No. 2 Kara Noh fan 109 can also be optimized via the transmission.
By making it variable in association with the air volume of a, the effect of the wind selection in the selection of the objects to be treated becomes greater. That is, when the amount of air blown by the turbo fan 97 is large, the amount of air blown by the second Kara Noh fan 109 is also large, and when the amount of air blown by the turbo fan 97 is small, the amount of air blown by the second Kara Noh fan 109 is also small.

As shown in the perspective view of the entrance portion of the threshing device 15 shown in FIG. 10 and the side view of the entrance funnel in FIG. 11, the entrance funnel 117 is attached to the front wall surface 15a of the threshing device 5 so that the operator side of the combine can operate. If the front wall surface 15a and the inlet funnel 117 are connected by the one-touch lock device 120, the inlet funnel 117 can be easily maintained. In this one-touch lock device 120, arms 121 and 122 are welded and connected to the front wall surface 15a of the threshing device 15, and the arm 1
Locking pieces 123, 12 that can be locked to 21, 122, respectively
Inlet funnels 117, each equipped with 4, are used. The inlet funnel 117 is composed of a bent plate having a substantially L-shaped cross section, and the one-touch lock device 120 is provided on the rising surface 117a thereof.
The locking piece 123 for locking can be locked to the arm 121, and the arm 1 is attached to the bottom surface 117b of the inlet funnel 117.
A pair of locking pieces 124 that can be locked to 22 are provided.

Therefore, when the locking piece 123 of the inlet funnel 117 is locked to the arm 121 and the one-touch lock device 120 of the rising surface 117a thereof is locked to the arm 121 against the biasing force of the spring 126, one-touch. An inlet funnel 117 can be attached.

As shown in the schematic plan view of the combine of FIG. 9, when the engine output pulley 28a is arranged at the lower right of the mounting portion of the inlet funnel 117 to the threshing device 15, the inlet funnel 117 can be attached and detached with one touch. Engine 2
8, other maintenance of the pulley 28a, the belt 126, the auger drive gear box 127, etc. can be easily performed.

As shown in FIG. 6, the grain culm with the grain inserted into the handling chamber 66 has a feed chain 14 moving along a rail guide 14c and a feed chain sandwiching rod urged by a spring 14b. 14a, and is clamped between FIG.
Threshing is caused by the interaction between the handling teeth 69a of the handling barrel 69 and the handling net 74 which rotate in the direction of arrow B while being transported in the direction of arrow A2.

As shown in the side view of FIG. 12 (a), the plan view of the lock device portion of FIG. 12 (b) and the plan view of FIG. 13, a twin chain chain rotating in front of the feed chain 14 in synchronization with the vehicle speed. In the configuration of 130 and 131, as shown in FIG. 12, when the tip end of the pinching bar 14a of the feed chain 14 can be turned up and down, the twin chains 130 and 131 can be manually handled when the machine is stopped. Can be improved. The lock device 120 is moved when the feed chain pinching rod 14a is moved upward.
Can be locked to.

The clamping rod 14a has a plurality of support rods 14d protruding upward. The support rods 14d are loosely fitted and supported by a support racket 14e and are urged downward by a spring 14b. Therefore, the pinching rod 14a
And the feed chain 14 between the culm and the spring 14b.
While being strongly sandwiched by the urging force of, the grain portion at the tip of the grain culm is threshed by the handling barrel 69 in the handling chamber 66 while being conveyed backward.

The twin chains 130 and 131 are stopped when the grain culms are handled manually. When the grain culms are handled manually, the grain culms are placed on the twin chains 130 and 131 and fed into the feed chain 14. At this time, if the tip end of the pinching bar 14a is raised and the feed port of the grain culm is enlarged, the grain culm is handled in the handling chamber 6
Easy to send into 6.

During the mowing work, the twin chain 130,
Since 131 is driven, the tip of the pinching rod 14a is lowered to stabilize the transfer of the grain culm from the reaper 6 to the threshing device 15, and the grain culm is pulled to the handling barrel 69 side in the exit chamber 66. It can be prevented from being pulled out.

As shown in FIG. 4, a pair of cross-flow fans 132, 133 are provided at the rear of the threshing device 15 to remove dust particles generated in the threshing device 15 including the dust treatment chamber 68 from the specific gravity. Air containing light straw debris and dust is sucked by the air blow by the rotation of the cross flow fans 132 and 133, blown out in the direction of arrow L (FIG. 4) from the cross flow fan outlet, and discharged to the outside of the combine 1.

Of the dust that has fallen from the chamber in which the cross-flow fans 132 and 133 are located at the end of the rocking rack 51 in the direction of arrow M (FIG. 4), a slightly longer straw waste is received by the straw rack 62. As shown by an arrow F, the rocking rack 51 is rocked by the rocking movement of the rocking rack 51 and the wind force of the Kara 79 is discharged from the end of the rocking rack 51 and discharged to the field. Further, among the dust particles, those having a small diameter and a large specific gravity, such as the second grain and the third grain, pass through the Straw rack 62 or the sheave 53 at the end portion of the swing shelf 51 in the arrow G direction (FIG. 4). It drops on the second shelf 85 and is processed again in the second processing chamber 67.

As shown in the combine plan view of the region in which the Karato 79 is installed in FIG. 9, the fan 79a of the Karato 79 is provided with the Karato fan 79a over almost the entire width in the width direction of the threshing device 15. In order to improve the sorting ability between the grain and the straw, the air flow of the Karatan fan 79a must be increased. Therefore, a turbofan 97 that blows air toward the Kara 79 was provided outside the machine frame of the threshing device 15, and the Kara air volume could be increased without changing the size of the machine.

[Brief description of drawings]

FIG. 1 is a diagram showing a left side surface of a combine for performing a grain harvesting operation according to an embodiment of the present invention.

FIG. 2 is a front elevation view of the combine of FIG.

3 is a plan view of the combine of FIG. 1. FIG.

FIG. 4 is a side sectional view of the combine threshing device of FIG. 1.

5 is a view showing a plane cross section of the combine threshing device as viewed from the direction of arrows BB in FIG.

FIG. 6 is a view showing an elevation cross-section of the combine threshing device taken along the line C-C in FIG. 4.

FIG. 7 is a perspective view showing the vertical movement of the straw rack of Kara Minoh of the threshing device of FIG.

8 is a perspective view showing an up-and-down drive mechanism of a straw duck straw straw of the threshing device of FIG. 4. FIG.

9 is a plan view of the combine of FIG. 1. FIG.

10 is a schematic perspective view of the inlet funnel attachment of the thresher of FIG.

FIG. 11 is a wall cross-sectional view of an inlet funnel attachment portion of the threshing device of FIG. 4.

FIG. 12 is a side view of a feed chain attachment portion of the threshing device of FIG. 4.

13 is a plan view of a feed chain mounting portion of the threshing device of FIG. 4. FIG.

FIG. 14 is a side sectional view of a conventional combine threshing device.

FIG. 15 is a diagram showing a plane cross-section of the combine threshing device as seen from the direction of arrows BB in FIG. 14.

16 is a view showing an elevation cross-section of the combine threshing device taken along the line C-C in FIG.

[Explanation of symbols]

1 Combine 2 Traveling Frame 3 Traveling Device 4 Crawler 6 Mowing Device 7 Weeding Tool 8 Grain Crane Lifting Device 14 Feed Chain 14a Feed Chain Clamping Rod 14b Spring 14c Rail Guide 14d Support Rod 14e Support Racket 15 Threshing Device 15a Wall Surface 16 1 Lifting grain cylinder 18 Vertical auger 19 Horizontal auger 20 Pilot seat 28 Engine 28a Pulley 30 Glen tank 31a Tank body 31b Auxiliary tank 50 Sorting unit 51 Swing rack 51a Transfer rack 53 Sheave 62 Straw rack 63 Sorting net 64 The first shelf 65 Most spiral 66 Handling chamber 66a Inlet 67 Second treatment chamber 68 Dust treatment chamber 68a Dust treatment chamber inlet 69 Handling drum 69a Handling tooth 70 Second treatment drum 70a Treatment tooth 70b Second treatment drum Blower blade 71 Dust treatment drum 71a spiral 74 handling net 75 second processing cylinder receiving net 76 receiving Net 79 Kara Minou 79a Kara Minou Fan 79b Rotating Shaft 79c Pulley 85 Second Shelf Board 86 Second Spiral 87 Second Lifting Cylinder 96 Belt 97 Turbofan 97b Rotating Shafts 101, 102 Pulley 103 Belt 105, 106, 107 Pulley 108 Belt 109 109 2 Ban Karano fan 109a Rotating shaft 110 Arm 111 Spring 113 Spring stop 114 Actuator (motor) 116 Transmission 117 Inlet funnel 120 One-touch lock device 121, 122 Arm 123, 124 Locking piece 126 Belt 127 Auger drive gearbox 128, 129 Pulley 130 Belts 132, 133 Cross-flow fan 134 Jump base 311a Paddy discharge port 311b Paddy discharge port

Claims (3)

[Claims] 1. A handling cylinder 69 for separating a grain from a grain culm.
And a dust removal treatment chamber 68 having a dust removal treatment cylinder 71 having a spiral 71a for treating a treatment object mainly made of straws. A threshing device, characterized in that a second treatment chamber 67 provided with a second treatment cylinder 70 for treating the second substance in the grain after threshing is provided in the vicinity of the dust treatment chamber 68. 2. The second processing cylinder 70 is configured to convey a second object from the rear to the front, and to return the second object to the starting end side of the dust removal processing cylinder 71. Threshing equipment. 3. The threshing device according to claim 1, wherein the rotational power source of the second processing cylinder 70 is connected to the rotational power source of the dust processing cylinder 71.