JPH0641428U - Control device without hand cutting in combine harvester - Google Patents

Abstract

(57) [Abstract] (Modified) [Object] The present invention provides a control device without hand cutting in a combine, which can easily mow and thresh a napped culm at a corner of a headland by a manual operation. [Structure] An operating lever 16 for raising and lowering a pretreatment device 13 is provided in a driving part, a cutting height detector 40 is attached to the pretreatment device 13, and a grain culm sandwiching and conveying device 5 of a threshing device 1 is provided with a grain end at a starting end thereof. The operation lever 16 is equipped with a transfer switching device that converts the culm into a posture in which the culm is sandwiched and transported and a posture in which the culm is not sandwiched and transported.
When a control switch for switching the transfer switching device is attached to the cutting switch and the cutting height detector 40 presses the control switch in the high cutting detection state, the transfer switching device switches to a posture in which the transfer is not performed, and the harvested grain culms are sandwiched and transported. A control device without hand cutting in a combine configured to supply to the supply port of the threshing device without being inherited to the device 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a control device without hand cutting in a combine for cutting and threshing a grain culm such as a corner of a field.

[0002]

[Prior art]

 Conventionally, the grain culms at each corner of the field were hand-cut, and the grain culms were manually supplied to a combine threshing device for threshing.

[0003]

[Problems to be solved by the device]

 Conventionally, when harvesting and threshing with a combine, the grain culms at the corners of the field were hand-cut at the beginning of mowing, and the harvested grain culms were supplied to the start end of the pinching and conveying device of the threshing device, but manual cutting work is a heavy labor. In addition, it took a lot of time, and when feeding to the threshing device, the feeding operation was difficult and low in efficiency because the starting end of the sandwiching and conveying device was at a high position.

In order to solve such a problem, when mowing the grain culms in the headland of a corner, the mowing device is moved up to be highly mowed, and the harvested grain culm is supplied to the sandwiching and conveying device of the threshing device. However, when the entire amount was thrown into the supply port for threshing, the above headland could not be mowed in one stroke, and complicated operations such as moving the aircraft forward and backward and sequentially changing the traveling direction had to be repeated. I had to do it. In addition, if the pretreatment device is raised to a certain extent, it may be possible to perform threshing treatment without automatically supplying grain culm to the sandwiching and conveying device, but it will be automatically performed depending on the shape of the field or the napped state of grain culm. If it is difficult to control and it is necessary to perform manual cutting without hand cutting, the operation is troublesome, the operation sequence is wrong, and the timing is delayed.

[0005]

[Means for Solving the Problems]

 The present invention provides a self-throwing threshing device on one side of a machine platform having a traveling device, a driving section and a grain processing section on the other side, and a mowing device and a mowing device in front of the threshing device. In a combine equipped with a pretreatment device composed of a grain culm conveying device for supplying grain culm to a threshing device so as to be vertically tiltable, an operating lever for raising and lowering the pretreatment device is provided in the operating section, and the pretreatment device is provided. A cutting height detector is attached to the machine, and a transfer switching device is provided at the beginning of the grain squeezing / conveying device of the threshing device to switch between a posture in which the grain stalks are conveyed and a state in which they are not conveyed. When the control switch for switching the switching device is installed and the control switch is pressed when the cutting height detector is in the high cutting detection state, the transfer switching device switches to a posture in which it does not hold and conveys the harvested grain to the grain-sandwiching and conveying device. Providing threshing equipment without inheriting And solve the problems described above by configured to provide to the mouth.

[0006]

[Action]

 The combine is loaded from one corner of the field, traveled along one of the ridges to mow thresh, and immediately before reaching the corner at the end of the run, tilt the operating lever of the driver rearward and attach it. When the control switch is pressed with the fingers holding the hand, the pre-treatment device rises, the mowing device cuts high, and the transfer switching device converts the grain culm into a posture in which it is not passed to the sandwiching and transporting device of the threshing device. The harvested grain culms that have been sent by the grain culm transporting device are put into the supply port of the threshing device to be threshed. In this way, when the mowing device has moved to the ridge and the mowing of one stroke is completed, the aircraft is retracted, and the traveling direction is partially corrected toward the next corner, After cutting again by advancing the machine again and repeating such mowing threshing an appropriate number of times to complete mowing at one corner, lower the pretreatment device and remove the finger from the control switch to transfer. With the switching device returned to the sandwiching and transporting posture, mowing is performed along the ridges that follow it. After that, at each corner, the same traveling direction correction, forward / backward traveling, and control switch operation as described above are repeated to perform one round cutting, and thereafter, the normal cutting is performed with the pretreatment device lowered. .

[0007]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. 1 is a threshing device mounted on one side of a machine base 3 having a traveling device 2 and having a supply port 4 at the front part and a handling chamber 6 side. On the outer side of the handle in the section, there is provided a grain culm pinching and conveying device 5 consisting of a feed chain 5a and a pinch rail 5b. On the other side of the machine stand 3, an operation panel 7, a driver's seat 8, An engine, a grain container, and the like are arranged, and a pillar 10 standing upright at the front of the threshing device 1 also serves as a mowing device 11 and a handling depth adjusting device. A pretreatment device 13 composed of a grain culm transporting device 12 constituted by a side-holding transporting body 12b is pivotally supported by a shaft 13a so as to be vertically tiltable, and is lifted and lowered between a pretreatment frame 15 and a machine base 3. When the hydraulic cylinder 14 for expansion and contraction is operated, the pretreatment device 13 moves along the ground surface as shown by the solid line. And cutting attitude, Ru can be converted to high cutting position indicated by a chain line or the like.

The operation panel 7 is provided with various instruments, switches, operation levers 16 and the like. When the operation levers 16 are tilted forward, the pretreatment device 13 is lowered, and when tilted backwards, they are raised. , When the vehicle is tilted to the left or right, the side clutch is disengaged and the traveling direction is changed to the left or right. The traveling clutch pedal 17, the brake pedal 18 and the parking brake 20 are provided in the lower part, and the lever panel 21 on the threshing device 1 side is provided. The main gear shift lever, sub gear shift lever, harvesting clutch lever and threshing clutch lever are provided.

Further, a chain case 22 having a sprocket shaft at the front end of the feed chain 5a as a drive source is attached to the front part of the support frame of the feed chain 5a, and a bevel gear is provided at the front end in the front and rear. A transmission case 23 is connected in series, and a transfer switching device including a transfer carrier chain 25 that swings left and right is attached to the front portion of the transfer case 23. The transfer carrier chain 25 extends a control cylinder 26 that is a hydraulic cylinder. When operated, the trailing end becomes in series with the starting end of the feed chain 5a so that the harvested grain culm transported by the grain culm transporting device 12 is supplied to the feed chain 5a. The rear end moves to the supply port 4 side and the grain culm is conveyed so as to be directly fed to the supply port 4 without being inherited by the feed chain 5a, and is clamped. At the front end of the rail 5b, a guide rod 24 is continuously provided to guide the sliding carrier chain 25 in sliding contact with the upper surface of the grain when the inheriting transport chain 25 is in the non-inheriting transport posture.

Further, a guide rail 27 fixed to the upper front surface of the supply port 4 holds a moving body 30 which slides left and right by a hydraulic cylinder 28, and a pair of left and right projections provided on the front surface of the moving body 30. A front end hanging portion of the supporting rod rotatably supports a scraping impeller 31 by a shaft 32, and the shaft 32 drives a handling cylinder 33 and a processing cylinder 34 mounted on a side portion thereof. It is forcibly driven by the transmission system. 29 is a fan for sorting.

A control switch 36 is attached to the upper end of the grip portion of the operation lever 16, and the control switch 36, a reduction limit switch 37 attached to the control cylinder 26, an extension limit switch 38, and The detection result of the cutting height detector 40, which is attached to the pivot portion of the pretreatment device 13 and includes a potentiometer, is input to a control device 41 including a microcomputer, and the control device 41 uses the combination of inputs to control the above. It outputs to the solenoid of the electromagnetic valve 39 which controls the control cylinder 26 to operate the electromagnetic valve 39 to switch the transfer switching device between the inherited posture and the non-inherited posture.

This will be described in more detail with reference to FIG. 5. At the beginning of mowing, the mowing device 11 is inserted into the corner of the field as shown in FIG. 7 to advance the machine body while mowing the part along one ridge. If the operation lever 16 is tilted rearward immediately before reaping threshing A and reaching the corner, the pre-treatment device 13 of the lifting hydraulic cylinder 14 is switched, and the pretreatment device 13 is lifted to detect the cutting height. The device 40 detects that the high-cutting state has been reached and inputs it to the control device 41. In this state, when the control switch 36 is pressed with a finger to turn it on, it is input to the control device 41. During the mowing and threshing work, the inheriting and conveying chain 25 is in the transferring posture, the control cylinder 26 is in the extended state, and the reduction limit switch 37 of the control cylinder 26 is OFF, so the solenoid S ₁ is the control device. The control cylinder 26 is turned on by the output of 41 until the reduction limit switch 37 is turned on, whereby the inherited transfer chain 25 rotates about the front part to a predetermined position on the supply port 4 side. . At this time, when the hand is released from the operating lever 16, the operating lever 16 automatically returns to the intermediate neutral position and the high cutting posture is maintained. Therefore, the short grain culms that have been highly mowed and subsequently fed by the grain culm transporting device 12 are sent to the supply port 4 side by the inheritance transport chain 25 and supplied to the supply port 4 in full quantity, and the scraping impeller 31 is Threshing is done because it is scraped into the handling room.

When the above-mentioned mowing is completed, the aircraft is retracted slightly more than the headland width, and the traveling direction is slightly changed to the mowing direction and the part B is mowed obliquely. Similarly to the above, the whole amount is put into the supply port and threshing is performed. When such oblique cutting is repeated over the C portion and the D portion, and when the straight line cutting becomes possible, the traveling direction is changed to E and the operation lever 16 is tilted forward to lower the pretreatment device 13. Then, the cutting height detector 40 inputs the low cutting detection signal to the control device 41, so that the control cylinder 26 is extended and the inherited transfer chain 25 is extended until the extension limit switch 38 is turned ON and the feed chain is fed. The grain culm that has been cut low is threshed while being nipped and conveyed. Also in the subsequent corners, when the diagonal cutting of J, K, L and N, O, P has been done to cut the headland on the entire circumference of the field, the aircraft is rotated 90 degrees at the corners. It is possible to continuously carry out normal mowing.

FIG. 9 shows another embodiment of the transfer switching device, in which the feed chain 5a is continuously extended to the transfer end of the grain culm transfer device 12, and the rail pieces 5b ′ and the front end of the pinching rail 5b and A transport switching device is constructed by interlocking the front end of the following rail piece with the control cylinder 26 via the connecting member 42, and when the rail piece 5b 'is raised by the control cylinder 26, it is not pinched and transported. In the same manner as in the above-described embodiment, when the whole amount is put into the handling chamber 6 without hand cutting, that is, without handing to the grain culm sandwiching and transporting device 5, without cutting and transporting the highly harvested grain stalks. The control cylinder 26 is reduced by the high cutting signal and the ON signal of the control switch 36 so that the grain culms are not pinched and transported.

According to the present invention, a self-throwing type threshing device 1 is provided on one side of a machine platform having a traveling device 2, and a driving section and a grain processing section are provided on the other side. In a combine in which a pretreatment device 13 including a mowing device 11 and a grain culm transporting device 12 for supplying culm culms to the threshing device 1 is vertically tiltably mounted, the pretreatment device 13 is moved up and down in the operating part. An operating lever 16 is provided, and a cutting height detector 40 is attached to the pretreatment device 13, and a posture for sandwiching and transporting the grain culms at a starting end of the grain culm sandwiching and transporting device 5 of the threshing device 1 and a posture for not sandwiching and transporting the culm are provided. When the control switch 36 for switching the transfer switching device is attached to the operation lever 16 and the cutting height detector 40 presses the control switch 36 in the high cutting detection state, the transfer switching device is equipped with a transfer switching device for converting the transfer switching device. In a posture that does not pinch and convey Since the cut grain culms are switched to be supplied to the supply port 4 of the threshing device 1 without being inherited by the grain culm sandwiching and conveying device 5, the grain culms at the corners of the field are manually cut to a high level depending on the field conditions. In the case of performing threshing processing by using one hand, the control switch 36 can be freely operated with the fingers of the same hand while raising and lowering the operation lever 16 for raising and lowering the pretreatment device 13 and the cutting and conveying device of the threshing device 1 is cut high. It is possible to easily switch between the state in which grain culms are not supplied and the state in which low-cut grain culms are supplied, and the transfer switching device is switched quickly and easily, and with good timing. be able to.

[Brief description of drawings]

FIG. 1 is a perspective view of a control unit of a combine.

FIG. 2 is a perspective view showing a state of supply of highly trimmed grain culms.

FIG. 3 is a perspective view showing a supply state of low-cut grain culms.

FIG. 4 is a side view in which a rear portion of the combine is omitted.

FIG. 5 is a flowchart of control without hand cutting.

FIG. 6 is a block diagram of the same.

FIG. 7 is a plan view showing a work process.

FIG. 8 is a transmission system diagram.

FIG. 9 is a side view showing another example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Thresher 4 Supply port 5 Grain-sandwiching / conveying device 7 Operating panel 13 Pretreatment device 16 Operating lever 25 Transfer chain 26 Control cylinder 36 Control switch 37 Reduction limit switch 38 Extension limit switch 40 Cutting height detector

Claims (1)

[Scope of utility model registration request] 1. A self-throwing type threshing device 1 is provided on one side of a machine platform having a traveling device 2, and a driving section and a grain processing section are provided on the other side, and a threshing apparatus 1 is provided at the front side. In a combine equipped with a pretreatment device 13 composed of a harvesting device 11 and a grain culm transporting device 12 for supplying the harvested grain culm to the threshing device 1, which is vertically tiltable, an operating lever for moving the pretreatment device 13 up and down in the operating section. 16 is provided, a cutting height detector 40 is attached to the pretreatment device 13, and a transfer for converting the posture of sandwiching and transporting the grain culm to the starting end of the grain culm sandwiching and transporting device 5 of the threshing device 1 is performed. If the control switch 36 is equipped with a switching device, and the control switch 36 for switching the transfer switching device is attached to the operation lever 16 and the cutting height detector 40 presses the control switch 36 in the high cutting detection state, the transfer switching device does not sandwich and transfer. Mowing after switching to posture A controller without hand cutting in a combine, characterized in that the grain culm is configured to be supplied to the supply port 4 of the threshing device 1 without being inherited by the grain culm sandwiching and conveying device 5.