JPH07255250A - Drive unit for combine harvester - Google Patents

Abstract

PURPOSE:To provide a driving unit for a combine harvester in which the transmission mechanisms for individual operation units are made extremely simple to simplify the total constitution, thus a variety of controlling units can be effectively introduced. CONSTITUTION:The running body having the running unit is equipped with the threshing unit 3 for threshing the cereal stems reaped and the reap- pretreating unit 4 which reaps and conveys the cereal stems to be fed to the threshing unit 3 is connected to the front of the running body freely liftably, and the waste straw-disposing unit 6 is connected to the waste straw outlet 5 in the threshing unit 6. The waste straw-disposing unit 6, the threshing unit 3 and the reap-pretreating unit 4 are equipped with motors MA, MB, MC, respectively so that they can be simultaneously operated on and off with one switch 7 as well as they can be driven separately with switches 8a, 8b and 8c, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive device for combine harvesters, which is used for self-removing combine harvesters and ordinary combine harvesters.

[0002]

2. Description of the Related Art Usually, a combine drive device is equipped with one engine for driving a pre-mowing treatment device, a threshing device, and a straw treatment device at a series of timings. Then, each device is operated while intermittently operating the power by a clutch device provided between each device.

[0003]

In recent years, agricultural machines in Japan, especially tractors, combine harvesters, rice transplanters, etc., have become more technologically advanced and various control devices have been incorporated. As the computerization progresses in this way, each device becomes more frequent in intermittent driving and speed adjustment of rotation speed.
Correspondingly, it is required that the drive can be stopped quickly and the gear can be adjusted.

That is, in the combine, when the control device is incorporated, each device mounted on the traveling vehicle body can be driven and stopped at a fixed timing, or each device can change gears in association with each other. In many cases, which often achieves the purpose of the control action. The present invention embodies a combine suitable for the control device as described above.

[0005]

The present invention takes the following technical means in order to solve the above problems. That is, a threshing device 3 for threshing a harvested grain culm is mounted on a traveling vehicle body 2 having a traveling device 1, and a cutting pretreatment device 4 for harvesting and conveying the grain culm supplied to the threshing device 3 is provided in front of the traveling vehicle body 2. And a threshing unit 3 of the threshing device 3 is provided with a straw treatment device 6 for treating straw, and the straw treatment device 6 and the threshing device 3 are connected to each other. Each of the mowing pretreatment device 4 is equipped with a motor MA, MB, MC that can be separately driven.
This is a combine drive device in which A, MB, and MC can be turned on and off by a single switch 7, and can also be turned on and off independently by respective switches 8a, 8b, and 8c.

[0006]

EXAMPLE First, the structure will be described. Running car body 2
Has a traveling device 1 composed of a crawler, and is configured to be driven by a motor MD dedicated to the traveling device 1, and propels without sinking not only in dry fields but also in wet fields. It is designed to be possible. The threshing device 3 is provided with a handling chamber 10 in which a handling barrel 9 is internally provided, and a swinging selection shelf 11, a first Kara no 12, a first transfer spiral 13, a second Kara 14 and a second transfer spiral 15 are provided on the lower side thereof. The sorting chamber 16 provided with is arranged, and the grain culm supply port 17 is located on the front side in the traveling direction and mounted on the traveling vehicle body 2.

Then, the threshing device 3 is provided with a pinch chain 18 along the handling mouth, and the starting end part of the straw chain 19 is located in the straw part 5 at the end part of this pinch chain 18. The end part is extended rearward. The threshing device 3 configured as described above is configured to be driven by a dedicated motor MA.

Next, in the embodiment, the straw processing device 6 is provided with a cutter 20 for cutting the straw as an example, and is provided so as to face the straw chain 19. Cutter-20
Includes a pair of parallel rotating shafts 21a and 21b, and a low-speed rotating shaft 21a having a disc receiving blade 22a mounted thereon.
A disc cutting blade 22b is pivotally attached to 1b to cut the straw discharged between the two.

The straw processing device 6 is constructed so that it is driven by a dedicated motor MB. Next, the pre-mowing treatment device 4 includes a weeding rod 2 on the machine frame 23 from the front side.
4, the grain culm raising device 25, the mowing device 26, the stock source transport device 27, the tip transport device 28 is integrally framed and configured,
A hydraulic cylinder 29 is provided at the front of the traveling vehicle body 2 so as to be vertically movable. Then, the weeding rod 24 is configured to rush into the planted grain culm in the field to weed. The grain culm raising device 25 is configured to drive the raising lugs 30 to raise the laid laid grain culms in an upright state. The mowing device 26 is located at the lower rear position of the weeding rod 24 and is configured to mow the root of the grain culm.

The stock-source transporting device 27 and the tip-end transporting device 28 sandwich the stock-source side and the tip-end side of the harvested grain culm and transport them from the harvesting device 26 to the start end portion of the pinching chain 18. . The pre-mowing treatment device 4 is configured to be driven by a dedicated motor MC.

In the above structure, each motor MA, M
B, MC and MD can be turned on and off by operating one general switch 7 to start and stop, and can be individually turned on and off by separately provided switches 8a, 8b, 8c and 8d. There is. Reference numeral 31 denotes a grain culm presence sensor, which is configured to detect the grain culm being conveyed by the stock carrier 27. Reference numeral 32 denotes a straw detection sensor, which has a configuration capable of detecting the straw carried by the straw chain 19.

The controller 34 has a general switch 7 on one input side and switches 8a and 8a which are individually configured.
b, 8c, 8d, grain culm presence sensor-31, straw detection sensor-32 are connected to each switch and sensor-
Is configured to receive a signal from the motor, and the other output side is provided with each motor MA, MB, MC, MD, hydraulic cylinder 2
The switching valve 9 is connected to receive the output signal.

The cutting pretreatment device 4 detects that the grain culm presence sensor 31 does not have grain culm and the controller 3
When a signal is sent to No. 4, after a predetermined time, an output signal is output from the controller 34, the motor MC stops, each rotating part stops, and the hydraulic cylinder 29 extends to move to the upper non-working position. It is configured to do. Next, the threshing device 3
Is a straw detection sensor provided facing the straw chain 19.
When 32 detects that there is no straw, a detection signal is sent to the controller 34, an output signal is issued from the controller 34, the motor MA is stopped, and each rotating part is stopped. In this case, since the threshing device 3 needs to complete the sorting operation in the sorting chamber 16 before the stop, the threshing detection sensor-32 stops after a predetermined time after detecting that there is no straw. It is configured to

Another Embodiment The grain detecting device 35 is constructed so as to be able to detect the amount of grains and straw waste that have fallen from the handling chamber 10 to the sorting chamber 16 and send the detection result as a signal to the controller 34. Is configured as follows. The swing selection shelf 11 has a structure capable of adjusting the mesh of the grain sieve 36, and based on the detection result of the grain detecting device 35, the grain is compared with a reference value stored in advance. When the mixing ratio is high, the mesh is widened, and conversely, when the amount of straw is large, the output is controlled from the controller 34 so that the related operation can be performed so as to close the mesh.

The second Karako 14 is constructed so as to be shiftable, and the controller 34 is arranged so that the speed can be increased when the grain detecting device 35 detects that the mixing ratio of the straw amount is higher than the reference value. The output is controlled from. Therefore, according to the configuration of another embodiment, from the handling room 10 to the sorting room 1
For the objects to be sorted that have fallen to 6, the amount of grains and straw waste is detected by the grain detection device 35, the controller 34 performs a comparison calculation with a reference value and issues an output signal, and when there are many grains, Leakage is promoted, and when there is a lot of straw waste, dust is promoted and proper sorting control is performed.

Next, its operation will be described. First,
Before initiating the mowing and threshing work, each device is inspected. At that time, each device is operated by individually operating the switches 8a, 8b, 8c, 8d to start each motor MA, MB, MC, MD. Make a trial run. In this way, each device
Trial run each to adjust the condition and start the work.

When the switch 7 is turned on, the pre-mowing treatment device 4, the threshing device 3, the straw treatment device 6, and the traveling device 1
When each dedicated motor MA, MB, MC, MD is started, it is transmitted and driven, and moves forward through the grain culms in the field. Then, the grain culm in the field is weeded by the weeding rod 24 and then caused by the grain culvert raising device 25 to reach the cutting device 26 so that the stock culm is cut.

The grain culm thus cut is handled from the grain culvert supply port 17 while being conveyed upward and rearward by the stock-source transporting device 27 and the tip transporting device 28 and being inherited and carried by the pinching chain 18. It is supplied to the chamber 10. then,
The grain culm presence / absence sensor-31 detects the grain culm being conveyed and transmits the result to the controller 34 as a detection signal.

As described above, the grain culm is threshed by the handling barrel 9 rotating in the handling chamber 10, leaks into the sorting chamber 16 and swings to the swinging sorting rack 11, the first Karako 12 and the second Karaku 14.
Selected by and. As described above, the traveling vehicle body 2 is
When the cutting and threshing work is continuously performed to reach a portion where there is no grain culm at the end of the field, the grain culm presence sensor 31 detects the absence of grain culm and sends the detection signal to the controller 34. Next, the motor MC is stopped by the output signal from the controller 34 after a predetermined time has elapsed, and the mower pretreatment device 4 which has been driven is stopped. Then, in the pre-mowing treatment device 4, the valve of the hydraulic cylinder 29 is switched and the extension operation is performed according to the output signal from the controller 34, and the cutting pretreatment device 4 is moved to the non-working position.

Then, the traveling vehicle body 2 turns to rush into the next row of grain culms and restart the cutting and threshing work. Then, when the traveling vehicle body 2 finishes cutting one field, by inputting to the controller 34 that there is no culm or culm by the functions of the grain culm presence sensor 31 and the straw detection sensor 32. A stop output is output to each of the motors MA, MB, MC, MD to stop each device, and the work can be automatically finished.

In this case, the mowing pretreatment device 4 is lifted by the operation of the hydraulic cylinder 29 after the transmission is stopped, and is raised and held to the non-working position.

[0022]

According to the present invention, there is provided a threshing device for threshing a harvested culm on a traveling vehicle body having a traveling device, and a cutting pretreatment device for harvesting and transporting the culm supplied to the threshing device. Provided in the front part of the threshing device to freely move up and down, the straw part of the threshing device is connected to an straw processing device for processing straw, and the straw processing device, the threshing device and before cutting A motor that can be driven separately for each of the processing devices
Equipped with a single switch to turn the motor on and off
Since the configuration is such that it can be operated and can be turned on and off independently, it has features that the transmission device of each device can be extremely simplified and the configuration can be simplified as a whole. is there.

The respective devices are driven as a whole as a whole so as to be operated properly and smoothly perform a series of works, but also have an effect that the trial run and the adjustment run can be performed very easily individually. I have. Moreover, the present invention is an excellent one that makes it possible to effectively assemble various control devices.

[Brief description of drawings]

FIG. 1 is an overall plan view showing an embodiment of the present invention.

FIG. 2 is a sectional side view showing another embodiment of the present invention.

FIG. 3 is a block circuit diagram showing an embodiment of the present invention.

FIG. 4 is an overall side view showing an embodiment of the present invention.

[Explanation of symbols]

1 Traveling device 2 Traveling vehicle 3 Threshing device 4 Mowing pretreatment device 5 Straw part 6 Straw treatment device 7 Switch 8a, 8b, 8c Separate switch

Claims (1)

[Claims] 1. A threshing device for threshing a harvested grain culm is mounted on a traveling vehicle body having a traveling device, and a mowing pretreatment device for harvesting and conveying the grain culm to be supplied to the threshing device is vertically arranged at the front part of the traveling vehicle body. Provided to freely connect up and down, the straw portion of the threshing device is provided with a straw treatment device for treating straw, and the straw treatment device, and each of the threshing device and the cutting pretreatment device. A drive unit of a combine equipped with a motor that can be driven separately, and the motor can be turned on and off by a single integrated switch, and can also be turned on and off independently.