JP2003000040A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems of a combine provided with a lower conveyer lifting up grains from a grain tank and a conveyer type transporter capable of carrying the grains carried by the lower conveyer to outside, that grains fallen from a grain exhausting device are accumulated on the conveying face of the conveying belt and carried to the end of the carrying part, in the case of big grains such as soy beans or the like contamination or damaging of the grains can be prevented but in the case of small grains such as wheat, buckwheat or the like, the grains fall from the side edges of the upper conveying face in conveying and the fallen grains penetrate to a space between the upper and lower conveying belt, bite into a space between belt driving member such as a pulley or the like and the conveying belt, or accumulating in plenty on the bottom face of the conveying case with soil and dust causing reduction of the conveying efficiency and requiring a complicated cleaning of the inside of the conveying case. SOLUTION: This conveying belt 47 of the conveyer type transporter 70 is constituted as normally or reversibly rotatable, and installing the changing switch 143 on a operating section 6.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to lifting of grains in a grain tank to a high position by a lower conveyor, and further,
The present invention relates to a combine equipped with a conveyor-type conveying device that can convey grains from the lower conveyor to the outside of the machine, and particularly to a conveyer-type conveying device that can select an appropriate conveying method according to the type of grains.

[0002]

2. Description of the Related Art Conventionally, the discharge of grains has been performed by a discharge auger or a bagging device. Among them, in the discharge auger, the grain is once fried in the vertical auger cylinder from the side of the grain tank, and then conveyed in the discharge auger extended substantially horizontally, and a track horizontally attached from the tip of the discharge auger. Had been discharged to. Also, in the bagging device, after the selected grains are fried, they are passed through a small tank called top sucker and dropped into the grain bag in the bagging device provided on the side of the aircraft. Was there.

And the grains are soft like soybeans,
In the case of beans that are easily contaminated with foreign matter such as soil, if the discharging auger after cutting, threshing, and sorting is performed with the screw-type discharging auger, which has a long transport distance, the grains are easily damaged and the grain quality deteriorates. Invite. Also, in the bag filling device,
Since the grain bag cannot be made so large, it has to be divided into a large number of bags and packed, which requires time and labor for bagging and carrying work, resulting in poor work efficiency.

Therefore, the present inventors have installed a screw-type carry-out conveyor at the bottom of the grain tank, and connecting the lower part to the carry-out conveyor so as to establish a grain discharge device on the back surface of the grain tank. The present invention proposes a conveyor that can be installed and discharges grains from the upper part of the grain discharge device to increase the discharge height and easily discharge even large bags. Furthermore, in order to discharge a large amount of grains to containers and trucks located farther apart, a conveyor-type conveyor device that can convey grains outside the machine is placed near the discharge port of the grain discharge device. I am proposing to set it up.

[0005]

However, in the above conveyor type conveying device, the grains dropped from the grain discharging device are stored on the upper conveying surface of the conveying belt and are conveyed to the conveying end portion as they are. Therefore, in the case of large grains such as soybeans, this conveying means is extremely effective in preventing the stains and damage of the grains, but in the case of small grains such as wheat and buckwheat, the conveying means of the upper conveying surface Grain is likely to spill from the side edge,
There is a problem that the spilled grains enter between the upper and lower conveyor belts and get caught between the belt driving member such as a pulley and the conveyor belt. Further, if a large amount of spilled grains is accumulated on the bottom surface of the carrying case together with soil and dust, it will obstruct the movement of the carrying belt, so that there is a problem that the inside of the carrying case must be cleaned frequently. there were.

[0006]

The problem to be solved by the present invention is as described above, and the means for solving this problem will be described below. That is, in claim 1,
A combiner for arranging a lower conveyor for lifting grains from a grain tank and a conveyor type conveying device capable of conveying grains from the lower conveyor to the outside of the machine, and driving the conveyor type conveying device by a hydraulic motor In the above, the conveyor belt of the conveyor type conveyor device is configured to be reversible in the forward and reverse directions.

According to another aspect of the present invention, the operating section is provided with a changeover switch capable of operating the conveyor belt in the forward and reverse directions.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 is an overall side view of the combine according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a rear view thereof.
FIG. 4 is a rear side view showing the grain discharge path, FIG. 5 is a partial side cross-sectional view of the periphery of the intermediate transfer device, FIG. 6 is a partial partial cross-sectional view of the same plane, and FIG. Hydraulic circuit diagram, FIG. 9 is a control block diagram showing lifting / driving means of each part of the combine, FIG. 10 is a side view of an upper transfer type conveyor type transfer device base, and FIG. 11 is a side view of a lower transfer type conveyor type transfer device base. FIG. 12, FIG. 12 is a side view of the front part of the conveyor type transport device, FIG. 13 is a partial front sectional view of the vicinity of the scrap removal port,
FIG. 14 is a side view of the bucket conveyor type transfer device, and FIG.
[Fig. 4] is a perspective view of the vicinity of a bypass.

First, the overall structure of the combine according to the present invention will be described with reference to FIGS. 1 to 4. The machine frame 100 is mounted on the crawler type traveling devices 1R and 1L, the threshing section 2 is mounted on the machine frame 100, and the cutting section 4 is provided in front of the threshing section 2 via the feeder chamber 3. The grain tanks 5 are mounted on the lateral sides of the threshing unit 2, and the operating unit 6 is continuously provided on the front side of the grain tanks 5.

Further, a rocking / sorting device 9 is arranged below the threshing unit 2, and the end of the first conveyor 8 provided below the rocking / sorting device 9 communicates with the bucket. A fried grain conveyor 7 is erected. The fried conveyor 7
In the above, the conveyor chain 16 is wound between the sprockets 14 and 15 which are axially supported on the upper and lower parts, and a plurality of buckets 17 are arranged in a row on the conveyor chain 16 and are sorted by the swing sorting device 9. The fine grains such as the first grain are conveyed to the arcuate receiving portion at the lower part of the fried conveyor 7, and the refined grains of the receiving portion are scooped up by the bucket 17 on the conveyor chain 16 and are directly placed on the upper portion of the fried conveyor 7. Be transported to.

The upper portion of the fried grain conveyor 7 is communicated with the grain tank 5 via a connecting pipe 68, and the refined grains conveyed to the grain tank 5 are rotated by a leveling disc (not shown) or the like. It is repelled and uniformly dispersed in the grain tank 5 so that it can be stored evenly. A screw-type carry-out conveyor 11 is axially mounted on the lower gutter 10 of the grain tank 5, and the end portion of the carry-out conveyor 11 is
It communicates with the lower part of the grain discharge device 13 through the inheritance case 12.

Also in the grain discharging device 13, a bucket type discharging conveyor 56 is formed, and a conveyor chain 67 is wound between the sprockets 88 and 89 pivotally supported on the upper and lower parts of the discharging conveyor 56, A plurality of buckets 66 are arranged in a row on the conveyor chain 67 so that the grains stored in the grain tank 5 can be discharged from above the grain discharging device 13.

As described above, the lower part of the grain discharging device 13 is connected to the bottom of the grain tank 5 so that the grain discharging device 13 is erected on the back surface of the grain tank 5 so that the rear part of the machine body is provided. Space can be utilized, and the height and width of the machine can be reduced compared to the conventional long discharge auger and wide bagging device installed on the top or side of the machine, so damage from the machine while the crop is running can be prevented. In addition to preventing this, the storage space of the aircraft has been reduced.

The outlet 1 of the grain discharging device 13
A conveyor-type transfer device 70 capable of transferring the grains to the outside of the machine is provided below 3a so that a large amount of the grains can be discharged to a container or a truck located at a distance. Further, the grain inflow port 5 of the conveyor type transfer device 70
0 and the discharge port 13a of the grain discharge device 13 are connected to a relay transfer device 69 so that the grain discharged from the discharge port 13a can be flowed by a rotating flat belt 90 or the like. It leads to the entrance 50.

Further, a rotation fulcrum shaft 107 is erected on the machine body frame 100, and the rotation fulcrum shaft 107 is supported by a support stay 108, which supports the threshing section 2 and swing selection. Support case 5 in which the device 9 and the like are installed
5, the support case 55 is mounted and fixed on the machine body frame 100.

In this way, the rotary fulcrum shaft 10 firmly supported by the machine body frame 100 and the support stay 108.
The rear end portions of the upper and lower rotating stays 92, 93 are rotatably fitted to the outer periphery of the upper end 7, and the front end portions of the rotating stays 92, 93 are connected and fixed to the back surface of the grain tank 5. The grain tank 5 is configured to be rotatable around the rotation fulcrum shaft 107. As a result, the grain tank 5 is quickly and surely opened to facilitate maintenance work inside the combine.

Next, the drive transmission structure of each of the conveyors including the conveyor type transfer device 70 according to the present invention will be described with reference to FIGS. First, a series of conveyors (hereinafter referred to as “lower conveyors”) from the carry-out conveyor 11 to the intermediate transfer device 69 via the grain discharging device 13 will be described with reference to FIGS. 4 to 6. As described above, the sprocket 88 is fixed to the end of the conveyor shaft 11a of the carry-out conveyor 11, and the sprocket 88 is connected to the upper sprocket 89 via the conveyor chain 67 in the grain discharging device 13, The conveyor shaft 11a is connected and interlocked with the pivot shaft 30 that supports the sprocket 89.
On the other hand, the starting end of the conveyor shaft 11a passes through a transmission mechanism including a transmission gear 102 and a lower conveyor clutch 118,
It is connected and linked to an output shaft of an engine (not shown).

In the relay transfer device 69 connected to the grain discharging device 13 as described above, a connecting path 81a is connected to the side of the discharge port 13a, and a square pipe-shaped connecting member is provided rearward from the connecting portion 81a. A case 81 is provided so as to project, and a transfer section 31 is formed below the relay case 81. In the transport section 31, the drive shaft 19 is pivotally supported between the left and right side plates on the transport start end side of the relay case 81, and the drive pulley 20 is externally fitted and fixed to the drive shaft 19. Similarly, the driven shaft 21 is pivotally supported between the left and right side plates on the transporting end side of the relay case 81, and the driven pulley 22 is externally fitted and fixed to the driven shaft 21, and the driven pulley 22 and the drive pulley 20 are attached. A flat belt 90 is wound between and.

From the end on the side of the drive shaft 19, the connecting shaft 28
And the bevel gear 27 is fixed to the end of the connecting shaft 28, and the bevel gear 26 is also provided at the rear end of the pivot shaft 30 that pivotally supports the sprocket 89 above the grain discharging device 13.
Is fixedly mounted, the bevel gear 26 is meshed with the bevel gear 27, and the pivot shaft 30 is linked and interlocked with the drive shaft 19.

In such a structure, the driving force transmitted from the engine (not shown) to the carry-out conveyor 11 via the transmission mechanism including the lower conveyor clutch 118 and the transmission gear 102 is the conveyor shaft 11a → sprocket 88 → conveyor chain. 67 → sprocket 89 → pivot 30 → bevel gear 26 → bevel gear 27 → connecting shaft 28 → drive shaft 1
It is transmitted to the drive pulley 20 in the order of 9, and the respective conveyors constituting the lower conveyor can be simultaneously driven by the lower conveyor drive mechanism 91 including the connecting shaft 28 and the like by the power from the engine.

Further, a conveyor type conveying device 70 according to the present invention, which is connected to the lower conveyor, is shown in FIGS.
Will be described. The conveyor type transfer device 70 is externally covered with a square pipe-shaped transfer case 33, and a drive shaft 38 is pivotally supported between the left and right side plates on the transfer start end side of the transfer case 33 and is driven by the drive shaft 38. The pulley 39 is externally fitted and fixed. Similarly, the driven shaft 40 is pivotally supported between the left and right side plates on the carrying end side of the carrying case 33.
A driven pulley 41 is externally fitted and fixed on the drive pulley 39, and a conveyor belt 47 is provided between the driven pulley 41 and the drive pulley 39.
Is wound.

Conveying plates 47a, 47a, ... Are erected at predetermined intervals on the outer peripheral surface of the conveying belt 47, and grains are stored between the conveying plates 47a, 47a. Even when the terminal end side of the conveyance is raised and the slope of the upper conveyance surface is increased, the grains are prevented from rolling and returning. A grain inflow port 50 opened upward is formed on the transport start end side of the transport case 33, and a receiving portion 106 including the grain inflow port 50 is formed above the transport start end side.

A hydraulic motor 32 for driving the conveyer type conveying device is fixed near the conveying start end side, and a drive pulley is attached to a drive shaft 32a extending laterally from the conveyer type conveying device hydraulic motor 32. 32b is fixed, and a drive belt 34 is wound between the drive pulley 32b and an input pulley 35 fixed to the end of the drive shaft 38.
The conveyor-type transfer device hydraulic motor 32 transmits the driving force to the drive shaft 38 via the input pulley 35 so that the conveyor-type transfer device 70 can be driven.

As described above, the conveyor type transfer device 70 is
It is driven by a system different from that of the lower conveyor, and is driven / stopped by opening / closing a switching valve in the hydraulic circuit.

Next, the hydraulic circuit and its control configuration will be described with reference to FIGS. 1, 5, 8, and 9. Figure 8
As shown in FIG. 5, the hydraulic circuit 42 includes a flow dividing valve 86 that branches the oil pumped from the oil tank 85 by the hydraulic pump 82 into the conveyor drive line 44 and the conveyor elevating line 45, and upstream of the conveyor drive line 44. From the take-up reel lifting circuit 61.
Conveyor type transport device drive circuit 62 / left attitude control circuit 63
And a reaper raising / lowering circuit 60, a conveyer type conveying device raising / lowering circuit 59, a right attitude control circuit 58, the diversion valve 86 and a conveyor type conveying device driving circuit which are sequentially arranged on the conveyer raising / lowering line 45 from upstream to downstream. A safety circuit such as a relief valve 83 provided between the safety valve 62 and the like.

The right attitude control circuit 58 includes the attitude control right up / down switching valve 74 and the attitude control right up / down cylinder 12.
5R, the conveyor type transfer device elevating circuit 59 is a conveyor type transfer device elevating switching valve 75 and a conveyor type transfer device elevating cylinder 113, and the mowing section elevating circuit 60 is a mowing section elevating switching valve 76, a mowing section elevating cylinder 134, and a take-up reel elevating A circuit 61 is a take-up reel up / down switching valve 77, left and right take-up reel up / down cylinders 133R and 133L, and a conveyor type transfer device drive circuit 62 is a conveyor type transfer device drive switching valve 78, a conveyor type transfer device hydraulic motor 32, and a left attitude control. The circuit 63 includes a left / right attitude switching valve 79 for attitude control and a left / right attitude lifting cylinder 125L for attitude control, and each actuator section 125R, 113, 134, 133, 32 ,.
The 125L is connected to each of the switching valves 74 to 79 and is configured to receive drive control.

Here, each of these actuator parts will be described. As shown in FIG. 1, a pair of left and right crawler type traveling devices 1R and 1L includes a drive sprocket 119 arranged on the front side of the body frame 100, a track frame 121 connected to the body frame 100 via an attitude control mechanism 120, and the track. The plurality of idler wheels 122, 122 ... And tension sprocket 123 attached to the frame 121, and the outer peripheral surfaces of the drive sprocket 119, idler wheels 122.122 ..., and tension sprocket 123 are made of rubber. The crawler belt 124 is wound, and the drive power sprocket 119 is driven by the power from the engine to rotate the crawler belt 124.

In the attitude control mechanism 120, the attitude control lift cylinders 125R.
5L is arranged in a rearward and downward slanted shape in the approximate center of the front and rear, and the base side of the attitude control lift cylinders 125R and 125L is pivotally connected to a bracket 126 fixed to the machine body frame 100, and the attitude control is performed. Lift cylinder 1
The tips of the 25 L and 125 R cylinder rods are connected to the track frame 121 via a link mechanism 127. As a result, the attitude control lift cylinder 125L
When the driving force is transmitted to 125R and the cylinder rod is expanded or contracted, the track frame 121 is moved to the body frame 100.
The height of the aircraft can be adjusted by raising and lowering the track frames 121 of the left and right crawler type traveling devices 1R and 1L in the same direction, and by raising and lowering the left and right track frames 121 separately. Horizontal control is performed.

In the reaping section 4, the transverse feed auger 130 is housed in the platform 129 in the left-right direction and is rotationally driven to collect the grain culms in the substantially left-right center. At the upper front of the platform 129, the take-up reel 1 is provided.
28, the rear part of the lifting link 132 is pivotally supported on the rear parts of both sides of the platform 129, and the take-up reel 128 is rotatably supported at the front end of the lifting link 132. Is driven to rotate.

The take-up reel elevating cylinders 133R and 133L are respectively interposed between the elevating link 132 and the front and rear midway portions of the left and right side surfaces of the platform 129, so that the take-up reel 128 can be moved up and down. Further, the mowing section elevating cylinder 134 is interposed between the lower surface of the feeder chamber 3 and the machine frame 100 to enable the mowing section 4 to move up and down.

As shown in FIG. 5, a turning fulcrum shaft 104 is erected on the body frame 100, and the turning fulcrum shaft 10 is provided.
4 is supported by upper and lower support stays 109 and 110, and the support stays 109 and 110 are horizontally projected from a support case 55 in which the threshing unit 2, the swing sorting device 9 and the like are provided. The support case 55 is the aircraft frame 1
It is placed and fixed on 00. As described above, the rotating member 24 is rotatably fitted over the upper part of the rotating fulcrum shaft 104 that is firmly supported by the machine body frame 100 and the supporting stays 109 and 110. A U-shaped swivel base 105, which is open upward in a cross-sectional view, is mounted and fixed on the swivel base 105.
It is possible to turn horizontally around 4.

Between the left and right side plates of the swivel base 105,
The conveyor-type transfer device 70 is pivotally supported so as to be vertically rotatable about a support shaft 57 in the left-right direction, and a fixing member 111 is fixed to the side surface of the rotating member 24 and fixed to the fixing member 111. Is provided with a cylinder support shaft 112, and the cylinder support shaft 112 is used for the conveyor type transport device lifting cylinder 1
Thirteen bases are pivotally supported. The tip end of the piston rod 113a extended from the conveyor type transfer device lifting cylinder 113 is rotatably connected to the right side plate of the transfer case 33, and the conveyor type transfer device 70 can be freely moved up and down. It is said that.

Each actuator section 125R, 113, 134, 133, 32, 125L provided as described above
, As shown in FIGS. 1 and 9, each of the switching valves 74 to 7
9 is connected to a combine control controller 36 via a controller 9, and the controller 36 includes a clogging sensor 94 for detecting grain lumps in the relay transfer device 69 and a support case 55 of the conveyor type transfer device 70. The storage switch 84 for detecting storage in the container, the discharge work switch 43 for inputting start and end of the grain discharge work, and the forward / reverse changeover switch 143 according to the present invention are connected, and detection of each of these switches is performed. Based on the signal or the output signal from the setting program, each actuator unit 125R
The drive of 113, 134, 133, 32, and 125L is controlled.

Next, the grain transfer structure of the conveyor type transfer device 70 which is driven and controlled by the hydraulic circuit 42 will be described with reference to FIGS. 1 and 7 to 11. As shown in FIGS. 1, 8 and 9, the conveyor type transport device driving hydraulic motor 32 is a bidirectional rotary type motor, and the conveyor type transport device driving hydraulic motor 32 has the conveyor type transport type motor 32 as described above. A device drive switching valve 78 is connected to the conveyor type transport device drive switching valve 78.
Is connected to the controller 36.
The forward / reverse rotation changeover switch 143 provided at is connected.

When the forward / reverse rotation changeover switch 143 is operated by "forward rotation" with a button or a lever, a forward rotation signal is transmitted to the controller 36, and the controller 36 receiving the forward rotation signal drives the conveyor type conveyor device. Switching valve 78
By operating the spool, the hydraulic motor 32 for driving the conveyor type transport device is rotated in the normal direction. On the contrary, when the forward / reverse rotation changeover switch 143 is operated to “reverse”, the reverse rotation signal is transmitted to the controller 36, and the controller 36 receiving the reverse rotation signal moves the spool of the conveyor type transport device drive switching valve 78 in the reverse direction by the solenoid. The hydraulic motor 32 for driving the conveyor type conveyor device by reversing the oil flow direction.
Is rotated in reverse.

Here, as shown in FIGS. 7, 10, and 11, the drive pulley 39 is centered on the drive shaft 38 and is indicated by an arrow 64.
When rotating in the direction (counterclockwise in the figure) is the normal rotation,
At the time of the normal rotation, the grains 144 that have fallen from the grain discharge device 13 through the grain inlet 50 are stored between the adjacent transport plates 47a on the upper transport surface 47b of the transport belt 47, and transported as they are. After being conveyed to the terminal end portion (hereinafter referred to as “upper conveyance type”), it is dropped from a discharge port 33b into a container (not shown) below.

On the other hand, when the drive pulley 39 is rotated in the direction of arrow 65 (clockwise in the figure) about the drive shaft 38, the grains that have fallen from the grain discharge device 13 through the grain inlet port 50 are dropped. The grains 144 are accumulated on the upper conveyance surface 47b immediately below the grain inflow port 50, and part of them are flown down toward the bottom of the bag portion 33c to be accumulated on the bottom plate 33d of the conveyance case 33. While being pushed to the transport end portion side (the left side in the figure) by the moved transport plate 47a, it is transported to the transport end portion as it is (hereinafter referred to as the “lower transport type”), and then below the discharge port 33b. It is dropped into a container (not shown).

Therefore, at the time of normal rotation, the grain 144 is transported while being held by the transport plate 47a and the upper transport surface 47b and rubbed between the grains 144 or between the grain 144 and the inner wall surface of the transport case 33. Even in the case of beans such as soybeans that are soft and have a large grain size and are easily mixed with foreign matter such as soil, the grain grain 144 can be reliably prevented from being soiled or damaged.

However, in the case of small grains such as wheat and buckwheat, the grains 144 easily fall out from the gap between the side edge of the upper conveyance surface 47b and the side plate of the conveyance case 33, so that the fallen grains 144 , Between the upper and lower conveying surfaces 47b and 47c, and conveyed as it is between the drive pulley 39 and the conveying belt 47 to be bitten, or the conveying case 3
A large amount of dirt and dust is accumulated on the bottom plate 33d of No. 3 to lower the transfer efficiency, and frequent cleaning work inside the transfer case 33 is required.

On the contrary, at the time of reverse rotation, since the grain 144 is transported while being pushed on the bottom plate 33d by the transport plate 47a, some rubbing between the grain 144 and the inner wall surface of the transport case 33 is unavoidable. However, the damage to the grain is considerably reduced as compared with the case where the discharging work is performed by the screw-type discharging auger. Therefore, compared to beans such as soybean
Grains are not easily damaged by buckwheat.

Moreover, since small grains 144 such as wheat and buckwheat do not spill from the conveyor belt 47 and enter between the upper and lower conveyor surfaces 47b and 47c as in the normal rotation, biting by the spilled kernels occurs. Since no troubles are caused and the bottom plate 33d is constantly swept by the carrier plate 47a, there is little omission and the carrier efficiency is improved, and the frequency of maintenance in the carrier case 33 is low.

That is, the lower conveyor for lifting the grains 144 from the grain tank 5 and the conveyor type conveying device 70 capable of conveying the grains from the lower conveyor to the outside of the machine are provided.
In the combine in which the conveyor type transfer device 70 is driven by the hydraulic motor 32, the transfer belt 47 of the conveyor type transfer device 70 is configured to be capable of forward and reverse rotations. Therefore, by switching the rotation direction of the transfer belt 47, the grain 144
You can freely select the appropriate transfer method from the upper transfer type and the lower transfer type according to the quality such as size, shape, hardness, etc. It is possible to improve the transfer efficiency and reduce the maintenance frequency in the transfer case 33.

Further, since the changeover switch 143 capable of operating the conveyor belt 47 in the forward and reverse directions is provided in the operating section 6, when the grain quality suddenly changes during the grain discharging operation, for example,
Even if the particle size distribution in the grain tank 5 is biased and the particle size changes greatly as the discharge work progresses,
The operator can switch to an appropriate transfer method accurately and quickly while observing the discharge status, prevent the stain / damage of the grain and the biting trouble, improve the transfer efficiency, and perform the maintenance inside the transfer case 33. The frequency can be reliably reduced.

Next, the structure of the transfer case 33 of the conveyor type transfer device 70 and the type of conveyor will be described with reference to FIGS.
2 to 14 will be described. As shown in FIG. 9 and FIG. 12, the discharge port 33b of the conveyor type transfer device 70 is provided with a pivot 145 extending laterally to the left and right with respect to the transfer direction.
At the left and right ends of 5, the upper part of a rectangular tubular discharge gutter 146 is externally fitted.
It is fixed, and the discharge gutter 146 is rotatable in the front-rear direction. A driven gear 147 is fixedly installed on the outer surface of the discharge gutter 146 on the pivot 145.
7, an upper drive gear 149 is meshed with the drive gear 149. The drive gear 149 is a discharge gutter rotation motor 1 such as an electric motor.
The discharge gutter rotation motor 151, which is fixed to one end of a drive shaft 150 protruding laterally from 51, is arranged on the lateral side plate of the conveyance end portion of the conveyance case 33. Further, a discharge gutter rotation switch 152 is arranged on the front side plate of the conveyance end portion of the conveyance case 33, and the discharge gutter rotation switch 152.
Is connected to the discharge gutter rotation motor 151 via the controller 36.

In such a structure, in the storage posture 153 in which the discharge gutter 146 hangs down, the grain conveyed by the conveyor belt 47 is as shown by an arrow 155.
It is dropped from the discharge port 33b through the inner surface of the discharge gutter 146 main body, and is dropped from the final discharge port 146a as it is into a grain bag (not shown) below.

When the operation lever 152a of the discharge gutter rotation switch 152 is tilted upward, a rotation signal is transmitted to the controller 36, and the controller 36 operates the discharge gutter rotation motor 151 based on this rotation signal. Driven by rotation,
The discharge gutter 146 is pivoted upward about the pivot 145, and becomes the discharge posture 154. Then, the conveyed grain gradually flows down from the discharge port 33b through the inner surface of the discharge gutter 146 main body, as shown by an arrow 156, and from the final discharge port 146a to the side container as it is. To be depressed.

Thereafter, conversely, the discharge gutter rotation switch 152
When the operation lever 152a of is tilted downward, a rotation signal is transmitted to the controller 36,
However, the discharge gutter rotation motor 151 is rotationally driven based on this rotation signal, and the discharge gutter 146 is rotated downward about the pivot 145 and returns to the storage posture 153. In addition,
Even within the movable range 157 between the storage posture 153 and the discharge posture 154, it is possible to set an arbitrary discharge angle by finely operating the operation lever 152a.

That is, in a combine machine provided with a lower conveyor for lifting the grains from the grain tank 5 and a conveyor type conveying device 70 capable of conveying the grains from the lower conveyor to the outside of the machine, Discharge port 33 of the transport device 70
Since a discharge gutter 146 capable of vertically rotating the grain is provided below and to the side of the discharge port 33b, it is suitable for a small amount of grain processing only by changing the posture of the discharge gutter 146. Moreover, it is possible to easily and surely cope with the usual discharging work to the grain bag and the discharging work of a large amount of grain to the container arranged at a high position.

Moreover, the discharge gutter 146 is vertically rotated by the discharge gutter rotation motor 151, and the discharge gutter rotation motor 1 is rotated.
Since the discharge gutter rotation switch 152 capable of driving 51 is provided at the front part of the conveyor type transport device 70, the worker can set the discharge gutter 146 to an appropriate discharge angle while actually confirming the discharge status. During work, it is possible to reliably prevent problems such as spilling of the grain to a position outside the grain bag or container and overflowing from the grain bag or container, and changing the discharge destination little by little to change the grain bag or container. The grains inside can be leveled, and the operability and workability of the discharging work can be greatly improved.

The discharge gutter 146 may have a shape with an open upper part, for example, a substantially U shape. This allows
Even when grain clogging occurs at the leading end of the conveyor type transport device 70, grain is discharged from above without being accumulated in the clogging part, so that further deterioration of grain clogging can be suppressed.

Further, as shown in FIGS. 12 and 13, a base of a scraper 53 having a V shape in plan view is fixedly provided on the inner surface of the side plate of the carrying case 33 near the driven pulley 41, and the lower side of the scraper 53 is The bag 33e is provided so as to abut the inner lower surface of the conveyor belt 47, and a bag portion 33e protruding outward is formed on the side wall of the conveyor case 33 near the tip of the scraper 53. As the transport belt 47 advances, the entered grains are pushed laterally along the path indicated by the arrow 59, and then fall through the bag portion 33e to the bottom plate of the transport case 33. And
A scrap removal port 33a is opened in the bottom plate of the carrying case 33, and a recovery box 158 is detachably attached to the bottom of the scrap removal port 33a, and the grain dropped from the bag portion 33e is The waste will be accumulated in the collection box 158 through the scrap removal port 33a. The transport case 3 near the drive pulley 39
Similarly, for 3, the waste removal port 33a and the collection box 1
58 can be provided.

That is, in a combine machine provided with a lower conveyor for lifting grains from the grain tank 5 and a conveyor type conveying device 70 capable of conveying the grains from the lower conveyor to the outside of the machine, The transport case 33 near the drive pulley 39 and the driven pulley 41, which are the conveyor supports of the transport device 70, is provided with a scrap removal port 33a.
Since the collection box 158 is detachably attached to 3a, the grains spilled inside the conveyor belt 47 are prevented from being caught between the belt driving member such as the pulley and the conveyor belt, and are spilled. Since the grains can be collected in the collection box 158, the collection yield is improved.

Further, as shown in FIG. 14, the conveyor is
Instead of the conveyor plate type in which the conveyor plate 47a is installed upright, the same bucket type as the grain discharging device 13 can be used.
In this bucket conveyor type transfer device 159, a drive shaft 167 is pivotally supported between the left and right side plates on the transfer start end side of the bucket conveyor type transfer device 159, and a drive sprocket 163 is fitted and fixed to the drive shaft 167. There is. Similarly, a driven shaft 168 is pivotally supported between the left and right side plates at the end of the conveyance, and a driven sprocket 164 is externally fitted and fixed to the driven shaft 168, and the driven sprocket 164 and the drive sprocket 163 are provided between the driven shaft 168 and the driven sprocket 164. The carrier chain 166 is wound around.

A plurality of buckets 165 are arranged in a line on the transport chain 166, and the grains can be reliably held in the bucket 165 while the transport chain 166 is rotating. It is possible to raise the discharge height to a higher level than that, and to increase the discharge height. Furthermore, compared to the screw type and the carrier plate type,
Since the grain hardly rolls between the transport plates 47a and the grain is less likely to be damaged, it is possible to secure higher grain quality.

That is, in a combine machine provided with a lower conveyor for lifting the grains from the grain tank 5 and a conveyor type conveyor device 70 capable of conveying the grains from the lower conveyor to the outside of the machine, the conveyor type The carrier of the carrier device 70,
Since the transport chain 166 has a plurality of buckets 165 arranged in a row, the grains can be reliably stored, the discharge height can be increased, and higher grain quality can be secured.

Further, the bucket conveyor type transfer device 1
The transport start end of 59 is fixedly mounted on the support shaft 162.
The reference numeral 2 is rotatably provided laterally on the receiving section 169, and the receiving section 169 is horizontally rotatably fitted to the lower end of the intermediate transfer device 69. Then, one end of the support shaft 162 extends outward from the joint portion 169, and the output shaft of the lift motor 160 such as an electric motor is coupled to the extended end, and the lift motor 160 is connected to the joint portion 169. The bucket conveyor type transfer device 159 is fixed on the outer side surface and can be moved up and down by driving the elevating motor 160.

In such a structure, the grain from the grain tank 5 is fried to a high level by the bucket 66 of the grain discharging device 13 and then continuously passed through the intermediate transfer device 69 to the grain inlet 161. And is conveyed to the distance as it is by the bucket 165 in the bucket conveyor type conveying device 159 and discharged to the outside of the machine.

At this time, the grain discharging device 13 and the bucket conveyor type conveying device 159 have an integral structure via the joint portion 169, and the bucket conveyor type conveying device 15
Since 9 can be horizontally rotated and vertically rotated with the inheritance portion 169 as a base point, the bucket conveyor type transfer device 1
It is possible to fold and store 59 by rotating it to the storage position on the side of the machine.

Next, the relay section of the conveyor type transfer device 70 will be described with reference to FIG. Grain discharging device 13
The relay case 170 is provided on the upper part of the guide plate 170, and the bottom surface of the relay case 170 has a guide plate 170a that is provided obliquely upward on the grain discharging device 13 side, and the guide plate 170a.
Flow path plate 170b continuously provided to the conveyor and the conveyor type transport device 7
And a flow-down port 172c communicating with the 0-side inheritance member 172. Then, the side plate 170d around the flow-out port 172c
The return port 170e is opened in the
And the recovery port 5a opened on the upper surface of the grain tank 5 are connected and communicated with each other via a bypass 172 having a rectangular tube shape.

In such a structure, the grain discharging device 1
Grains fried by the discharge conveyor 56 in the No. 3 are guided from the inside of the bucket 66 as shown by an arrow 173.
After falling on a, as shown by the arrow 174, the flow path plate 170
Rolling over b, from the outlet 172c to the inheritance member 1
Drop into 72. Then, in the inheriting member 172, when grain clogging occurs due to a large amount of grain processing or the like, the accumulated grain overflows from the return port 170e and bypasses 172 as shown by an arrow 175. It flows down and flows into the grain tank 5 through the recovery port 5a.

That is, in a combine machine provided with a lower conveyor for lifting grains from the grain tank 5 and a conveyor type conveying device 70 capable of conveying the grains from the lower conveyor to the outside of the machine, Since the bypass 171 communicated with the grain tank 5 is provided in the relay case 170 between the transfer device 70 and the lower conveyor, the overflowed grain is collected in the grain tank 5 via the bypass 171. Therefore, the grain clogging can be reliably prevented only by providing a simple bypass without providing the clogging sensor 94 and the like.

[0062]

Since the present invention is constructed as described above,
It has the following effects. That is, as in claim 1, a lower conveyor for lifting grains from the grain tank, and a conveyor-type conveying device capable of conveying the grains from the lower conveyor to the outside of the machine are provided, and the conveyor type In a combine driven by a hydraulic motor, the conveyor belt of the conveyor type conveyor is configured to be reversible, so by changing the rotation direction of the conveyor belt, the size, shape, hardness, etc. of the grain can be changed. You can freely select the appropriate transport method from the upper transport type and the lower transport type according to the quality, so you can prevent grain contamination / damage and bite troubles, improve transport efficiency, and The frequency of maintenance can be reduced.

According to a second aspect of the present invention, since the changeover switch capable of performing the forward / reverse operation of the conveyor belt according to the first aspect is provided in the operation section, when the grain quality suddenly changes during the grain discharging operation, For example, even if the particle size distribution in the grain tank is biased and the particle size changes significantly as the discharge work progresses, the operator can accurately and promptly and properly transport the waste while checking the discharge status. It is possible to switch to the system, and it is possible to surely prevent the stain / damage of the grain and the trouble of biting, improve the transportation efficiency, and reduce the maintenance frequency in the transportation case.

[Brief description of drawings]

FIG. 1 is an overall side view of a combine according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a rear view of the same.

FIG. 4 is a rear side view showing a grain discharge path of the same.

FIG. 5 is a partial side sectional view of the periphery of the intermediate transfer device.

FIG. 6 is a partial cross-sectional view of the same plane.

FIG. 7 is an overall side view of a conveyor type transport device.

FIG. 8 is a hydraulic circuit diagram for lifting / driving each part of the combine.

FIG. 9 is a control block diagram showing an elevating / lowering means of each part of the combine.

FIG. 10 is an enlarged side view of a base portion of an upper conveyance type conveyor type conveyance device.

FIG. 11 is an enlarged side view of a lower conveyor type conveyor type transport device base.

FIG. 12 is an enlarged side view of the front portion of the conveyor type transport device.

FIG. 13 is a partial front cross-sectional view of the periphery of a scrap removal port.

FIG. 14 is a side view of a bucket conveyor type transporting device and its surroundings.

FIG. 15 is a perspective view around the bypass.

[Explanation of symbols]

5 grain tank 6 Driving department 32 hydraulic motor 47 conveyor belt 70 Conveyor type conveyor 143 changeover switch 144 grains

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Akihiko Nakaya             1-32 Yanma, Chayamachi, Kita-ku, Osaka-shi, Osaka             -Agricultural machinery Co., Ltd. (72) Inventor Shigeto Kinugawa             200 Asakura, Yoka Town, Yabu District, Hyogo Prefecture Yatsuka Iron Works Co., Ltd.             Inside the company (72) Inventor Shinji Ishii             200 Asakura, Yoka Town, Yabu District, Hyogo Prefecture Yatsuka Iron Works Co., Ltd.             Inside the company (72) Inventor Shozo Nakajima             200 Asakura, Yoka Town, Yabu District, Hyogo Prefecture Yatsuka Iron Works Co., Ltd.             Inside the company F term (reference) 2B396 JA04 JC06 KA02 KA04 KC05                       KE02 KE03 KE04 LA02 LA14                       LC07 LR02 LR07 LR09 LR12                       LR14 LR20 PA04 PA12 PA30                       PA42

Claims (2)

[Claims] 1. A lower conveyor for lifting grains from a grain tank, and a conveyor type conveying device capable of conveying the grains from the lower conveyor to the outside of the machine, and the conveyor type conveying device is hydraulically operated. In a combine driven by a motor, the convey belt of the conveyer type conveyer has a structure capable of forward and reverse rotation. 2. The combine according to claim 1, wherein a changeover switch that allows forward and reverse operation of the conveyor belt is provided in the operating unit.