JPS6141546Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grain storage device for a combine harvester equipped with a grain tank for threshing continuously harvested grain culms and storing grains obtained by the threshing process.

Conventionally, as shown in Japanese Utility Model Application Publication No. 53-145962, there has been a technique in which a conveyor in which an auger is inserted into a pipe is attached to a grain tank, and the grains in the tank are discharged by the conveyor.

However, in the prior art, since the conveyor is stopped during harvesting, grains do not flow into the conveyor, and even if the conveyor is operated during discharge, the time required for the grains to fill the conveyor and the conveyor The time it takes for grains to be discharged from the grain tank is included in the grain discharge time of the grain tank, so the discharge time was wasted compared to the tank capacity, so it is easy to expand the tank storage capacity and improve the discharge efficiency. I had a problem that I couldn't solve.

Furthermore, as shown in Japanese Utility Model Application Publication No. 52-157446, there was a technology for detecting overflow at the paddy dumping port and starting or stopping the conveyor in the grain conveying machine, but in the case of a combine that keeps the paddy dumping port open all the time. During the harvesting process, unlike the conventional technology, it is not possible to obtain grains that overflow, and there is a problem that the grains are scattered in the field.It is also possible to close the paddy dumping port of the conveyor as a structure to prevent this problem. However, there is a risk of forgetting to open the paddy dumping port when discharging the grains, and the structure of the paddy dumping port and handling operations cannot be easily simplified.Moreover, the paddy dumping port serves as an auxiliary tank for grains, and the top of the conveyor Since the conveyor becomes heavy, it is necessary to improve the strength of the conveyor, which creates problems that make it difficult to reduce costs and reduce the weight of the conveyor. It was hot.

However, in the present invention, a discharge auger is inserted into a pipe of a grain discharge conveyor that is connected to a grain tank, and a paddy dumping port of a normally open structure is connected to the end of the pipe on the auger delivery terminal side, and In a device for supporting the pipe substantially horizontally on the upper side of a combine machine during harvesting work, a paddy sensor is attached to the pipe so that the grains sent out by the auger can be detected at least one pitch or more inward from the sending end, and the With the sensor output disengaging the auger clutch to stop the auger and supporting the pipe approximately horizontally, the grains in the pipe are prevented from falling from the paddy dumping port by the pipe closing action at the end of the auger delivery. This feature is characterized in that it is configured to be able to be blocked.

Therefore, during harvesting, the auger is operated until the pipe is filled with grain, and the closing action of the auger retains the grain in the combine, eliminating the need for a structure for opening and closing the paddy dumping port, making handling operations easier. simplification and improved safety, and the pipe can be easily used as a tank without increasing the weight of the tip of the conveyor.
It is possible to easily increase the harvest amount with approximately the same tank capacity as before, and it is also possible to discharge a larger amount of grain than before in approximately the same time as before, making the harvesting work of combine harvesters and the grain discharging work of grain tanks easier than before. It can be performed efficiently, is highly functional, and can easily improve maneuverability.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings. Figure 1 is a schematic side view of the combine harvester, Figure 2 is a plan view of the same, and in the figure 1 is a truck frame;
2 is a traveling crawler, 3 is a machine base, 4 is a pivot point,
5 is an elevating cylinder, 6 is a threshing section that includes a handling cylinder 7, 8 is a reaping section that has a cutting blade 9, 10 is a straw disposal section that includes a cutter (not shown), etc., 11
12 is a grain conveyor, 12 is a feed chain,
Reference numeral 13 indicates a straw removal chain, 14 indicates a driver's cab, 15 indicates a driver's seat, 16 indicates a driving operation section, 17 indicates an engine, and 18 indicates a grain tank for storing grains taken out from the first opening 19 of the threshing section 6. a tank; 20 is a grain frying conveyor that communicates the first mouth 19 with the storage tank 18; 21 is a horizontal feed conveyor horizontally suspended at the bottom of the tank 18; 22 is a vertical discharge conveyor for taking out grains from the tank 18; 23; is a horizontal discharge conveyor that sends out grains, and the reaping section 8 continuously reaps the grain culms, and the grain culms are transferred to the threshing section 6 by the conveyor 11 and the feed chain 12, As well as being shed by the handling cylinder 7,
The grains taken out from the first mouth 19 of the threshing section 6 are stored in a storage tank 18 by a grain frying conveyor 20.

As shown in FIG. 3, the grain frying conveyor 20 includes a lifting auger 24, which is installed inside a grain frying pipe 25, and a transmission case 2 is attached to the lower end of the pipe 25.
At the same time, a discharge cylinder 27 is connected and fixed to the upper end of the pipe 25, and a scattering blade 28 is connected to the upper end of the lifting auger 24. The conveyor 20 has a drive case 29 connected to its lower end, and is configured to drive the conveyor 20 by the transmission force from the engine 17 that is input to the case 29 via an input pulley 30 or the like.

The lateral conveyor 21 includes a horizontal auger 31 that extends horizontally in the front-rear direction of the storage tank 18 . The input shaft 33 is interlocked with the output pulley 37 of the engine 17 via the input pulley 34, the belt 35, the auger clutch 36, etc., and the engine output is transferred to the transverse conveyor 21. It is configured so that it is transmitted to

As shown in FIGS. 3 and 4, the vertical discharge conveyor 22 includes a vertical auger 38, and a vertical pipe head 40 is rotatably provided on a support stand 39 provided at the rear of the storage tank 18. The upper end of the pipe 41 is fixed, and the auger 38 is installed inside the pipe 41. The lower end of the vertical pipe 41 is rotatably connected to the receiving tube 42 via a joint 43, and an outlet tube 44 in which the terminal end of the horizontal auger 31 is installed is combined with the receiving tube 42, and each auger is connected to the receiving tube 42 through the opening. 3
1,38 are connected. the lower end of the receiving tube 42;
The tip of the outlet tube 44 is connected by an L-shaped gear case 45, and within the case 45, the terminal end of the horizontal auger 31 and the lower end of the vertical auger 38 are interlocked and connected via a gear or the like.

As shown in FIGS. 3 and 4, the horizontal discharge conveyor 23 includes horizontal augers 46 and 47, and a horizontal pipe 4.
The augers 46 and 47 are inserted into the pipes 8 and 49, and the pipes 48 and 49 and the augers 46 and 47 are connected by a joint 50. Further, a dispensing tube 5 is attached to the tip of the pipe 49 which is appropriately supported by the machine frame stand 51.
2 is fixed to form the paddy dumping port 53, the base end is pivotally connected to the pipe 48, and the distal end side is connected to the pipe 4.
9 is provided with a direction change manual lever 55 supported by a clamp 54.

Further, a base cylinder 5 is rotatably attached to the vertical pipe head 40.
6 is provided, the pipe 48 is connected to the base cylinder 56, the starting end of the horizontal auger 46 is inserted into the base cylinder 56, and the feed blade 5 is connected to the upper end of the vertical auger 38.
7 and the starting end of the horizontal auger 46 are communicated via a horizontal outlet 58.

Further, a gearbox portion 59 is formed on the vertical pipe head 40, a vertical shaft 60 is mounted thereon, and the upper end of the vertical auger 38 is connected to the vertical shaft 60 via a pair of flat gears (not shown). A core shaft 61 located on the rotation center of the base cylinder 56 is provided. A horizontal gear case 62 is rotatably attached to the gearbox portion 59, and the core shaft 61 is mounted on the connecting portion thereof, and each shaft 6 is
Concatenate 0,61.

The rear end of the base cylinder 56 and the rear end of the horizontal gear case 62 are connected by a pipe frame 56. A connecting shaft 66 is installed inside the frame 65, and the starting end of the horizontal auger 46 and the shaft 66 are connected by a pair of bevel gears 67, 68, and the core shaft 61 and the shaft 66 are connected by a sprocket 69,
70 and chain 71.

A flange body 72 is provided at the front end of the horizontal gear case 62.
The flange body 72 and the base cylinder 56 are integrally connected by a support rod 73. The vertical pipe head 4
A hydraulic cylinder 75 is pivotally supported on a support 74 provided in the middle of the piston rod 7 of the cylinder 75.
6 is connected to the support rod 73. And the base cylinder 56,
By surrounding the vertical pipe head 40 with the horizontal gear case 62, pipe frame 65, and support rod 73, and operating the hydraulic cylinder 75, the horizontal discharge conveyor 23 is raised and lowered, and the vertical discharge conveyor 22
The horizontal discharge conveyor 23 is rotated in the horizontal direction around the center, and the direction of the conveyor 23 is changed.

On the other hand, an auger clutch lever 77 of the discharge auger consisting of the horizontal auger 31, the vertical auger 38, and the horizontal augers 46, 47 is swingably provided on a pivot 78 near the driver's seat 15, and the lever 77 and the auger clutch 36 are connected via a clutch link 79 and a clutch wire 80, and the lever 77
The clutch 36 is configured to be appropriately engaged and disengaged by the swinging operation.

Further, an operating arm 81 is fixed to the base end of the clutch lever 77, and the tip of the arm 81 is connected to a plunger 84 of a solenoid 83 via a spring 82. Then, a part of the horizontal pipe 49 near the rice dumping port 53 of the horizontal discharge conveyor 23 is opened, and a sensor, that is, an actuator 86 of the limit switch 85 is inserted into the pipe 49.
The clutch lever 7 is provided so as to face the clutch lever 7.
Turn on the discharge augers 31, 38, 46,
47 to move the grains to the switch 85 position, this is detected, the solenoid 80 is energized, the lever 77 is switched from on to off, and the discharge conveyor 2
The structure is such that grains are filled and stored in the containers 2 and 23.

As shown in FIGS. 6 and 7, the crawler 2
A balance weight 87 is attached to the machine base 3 at approximately the center of the front and back of the machine so as to be movable from side to side. The balance weight 87 is screwed onto a screw shaft 89 that is interlocked with a reversible motor 88, and when the screw shaft 89 is rotated in forward and reverse directions, the weight 87 is slid along guide rails 90, 90 that guide the weight 87 in a sliding manner. It is configured to move appropriately within a position to the left of the center position of the aircraft. Note that 91 is a bearing for the screw shaft 89.

Further, a sensor is provided in the storage tank 18 to detect the amount of stored grains, and a first switch 92 which detects when there are no more grains in the tank 18 is activated. A second switch 93 that detects when the water level is about 1/3 is connected to the tank 18.
The third part detects when approximately 2/3 of the grains remain inside.
The switch 94 is connected to a fourth switch 9 which detects when the tank 18 is almost full of grains.
5 are provided for each. The second to fourth switches 93, 94, 95 have respective switch contacts 93a, 94a, 95a, 95b when grains are detected.
The first switch 92 turns on the switch contact 92a when no grains are detected.

The balance weight 87 is connected to the switch 9.
2, 93, and 94, and first, second, and third limit switches 96, 97, and 98 for regulating the amount of movement of the weight 87 are provided in the movement range of the weight 87, respectively. , when the second switch 93 is turned on, the balance weight 87 is moved from the right end position of the screw shaft 89 to the second limit switch 97 position, and the balance weight 87 is moved from the right end position of the screw shaft 89 to the second limit switch 97 position.
When the switch 94 is turned on, the balance weight 87 is moved from the second limit switch 97 position to the third limit switch 98 position on the left end of the screw shaft 89, and when the first switch 92 is turned on, the balance weight 87 is moved from the third limit switch position 98. The screw shaft 89 is rotated in forward and reverse directions as appropriate to the position of the first limit switch 96 at the right end of the screw shaft 98, and the balance of the machine body is maintained at a constant level in accordance with the configuration of the grain amount. There is.

FIG. 8 shows the electrical circuit diagram, in which a main switch 100 is connected to the battery 99, and a buzzer 101 is connected to the switch 100 via one normally open contact 95a of the fourth switch 95. There is. Further, a relay 103 is connected to the main switch 100 via a return switch 102 having a normally closed contact and the other normally open contact 95b of the fourth switch 95. The return switch 102
A normally open relay contact 103 of the relay 103 is connected between the normally open contact 95b and the relay 103.
a is connected. Furthermore, the normally closed relay contact 10 of the relay 103 is connected to the main switch 100.
3b and the normally open contact 8 of the limit switch 85
The solenoid 83 is connected via 5a.

Furthermore, the main switch 100 includes a normally open contact 93a of the second switch 93 and a normally open contact 93a of the second switch 93.
The normal rotation terminal 88a of the motor 88 is connected through the normally closed contact 97b of the limit switch 97, and the normally open contact 9 of the third switch 94 is connected between the switch 100 and the terminal 88a in parallel.
4a and the normally closed contact 98b of the third limit switch 98 are connected. In addition, the main switch 100 and the reversing terminal 88b of the motor 88
and a normally open contact 92 of the first switch 92.
a and the normally closed contact 96b of the first limit switch 96 are connected.

The present embodiment is configured as described above, and the auger clutch lever 77 is turned on while the threshed grains are stored in the storage tank 18 via the grain frying conveyor 20 in the threshing section 6. Therefore, the grains in the tank 18 are normally discharged sequentially from the paddy dumping port 53 via the vertical and horizontal discharge conveyors 22 and 23, but in this case, the grains are discharged up to the switch 85 near the paddy dumping port 53. When the switch 85 moves, the switch 85 detects this and turns on the switch contact 85a to energize the solenoid 83. As a result, the plunger 84 performs a suction operation to pull the operating arm 80 and switch the clutch lever 77 from the on to off position, thereby stopping the discharge operation while the discharge conveyors 22 and 23 remain filled with grains. Therefore, it is possible to store an extra amount of grain in the tank 18 by the amount of grain filling the discharge conveyors 22 and 23, thereby increasing the capacity of the tank 18. Therefore, when the tank 18 is also full and the switch 95 detects this, the buzzer 101 is activated.
The solenoid 83 is deenergized while the clutch lever 77 is held in the off position, and the clutch lever 77 is then turned on again. The grains are taken out from the tank 18 by.

In addition, as the balance weight 87 moves left and right as appropriate in response to an increase or decrease in the amount of grain in the tank 18 during work, the balance of the machine body can be maintained, and when the machine body is running stably, the running performance in wet fields is improved.

As is clear from the above embodiments, the present invention has a discharge auger 47 inserted into the pipe 49 of the grain discharge conveyor 23 which is connected to the grain tank 18,
In a device in which a rice dumping port 53 of a permanently open structure is connected to the end of the pipe 49 on the delivery end side of the auger 47, and the pipe 49 is supported substantially horizontally on the upper side of the combine machine during harvesting work, the auger 4
A paddy sensor 85 is attached to the pipe 49 so as to be able to detect grains delivered by the pipes 6 and 47 at least one pitch inward from the delivery end.
7 is stopped and the pipe 49 is supported substantially horizontally, the grains in the pipe 49 reach the paddy dumping port 5.
3 can be prevented from falling from the auger 49 by the closing action of the pipe 49 at the delivery end,
During harvesting, the auger 47 is operated until the pipe 49 is filled with grains, and the closing action of the auger 47 retains the grains in the pipe 49.
By eliminating the need for a structure for opening and closing 3, handling operations can be simplified and safety can be easily improved, and the pipe 49 can be easily used as a tank without increasing the weight of the tip of the conveyor 23. In addition, it is possible to easily increase the harvest amount with approximately the same tank capacity as before, and it is possible to discharge a larger amount of grain than before in approximately the same amount of time as before. It can be carried out more efficiently than before, and has practical effects such as being extremely functional and easily improving mobility.

[Brief explanation of drawings]

Fig. 1 is an overall side view of a combine harvester showing an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a sectional view of the storage tank, Fig. 4 is a sectional view of the horizontal discharge conveyor, and Fig. 5 is an explanatory diagram of the auger clutch lever part,
FIG. 6 is an explanatory diagram of the state in which the balance weight is mounted, FIG. 7 is an explanatory diagram of the balance weight, and FIG. 8 is an electric circuit diagram. 18...Glen tank (storage tank), 31,
38, 46, 47...Discharge auger, 36...Auger clutch, 53...Paddy dumping port, 85...Paddy sensor.

Claims (1)

[Scope of utility model registration request] A discharge auger 47 is inserted into a pipe 49 of a grain discharge conveyor 23 that is connected to the grain tank 18, and a pipe 49 on the delivery end side of the auger 47 is inserted.
A continuously open paddy dumping port 53 is provided at the end, and
In a device that supports the pipe 49 substantially horizontally above the combine machine during harvesting, the grains sent out by the augers 46 and 47 are inserted into the pipe 49 so that they can be detected at least one pitch inward from the end of the delivery. Attach the sensor 85 and
5, the auger clutch 36 is disengaged by the output to stop the auger 47, and with the pipe 49 supported substantially horizontally, the auger 49 sends out the grains in the pipe 49 falling from the paddy outlet 53. A grain storage device for a combine harvester, characterized in that the grain storage device for a combine harvester is configured to be able to be blocked by a closing action of a pipe 49 at the end thereof.