JPH0580227U - Feed chain drive controller - Google Patents

Abstract

(57) [Summary] [Purpose] At combine harvesting, when harvesting is stopped so that the grain culm can be passed from the reaping device to the feed chain smoothly without involving the grain culm or disturbing the posture of the grain culm. Controls the drive of the feed chain when the vehicle is stopped or traveling in reverse. [Structure] Combine threshing clutch, harvesting clutch "ON", main speed change lever position, and traveling speed are detected and input into a control circuit, and the feed chain clutch can be operated by the control circuit. When the mowing clutch levers are both "ON", the main gear shift lever is forward, and the mowing clutch lever is "OFF", the mowing device stops and the feed chain stops after a delay time corresponding to the traveling speed. When both the threshing clutch lever and the mowing clutch lever are "ON" and the main gear shifts from forward to neutral or reverse, the mowing device stops and the feed chain is stopped after a predetermined time. The feed chain is controlled to be driven a predetermined time after the driving is started.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to drive control of a feed chain in a combine.

[0002]

[Prior Art]

 In the conventional combine harvester, when both the threshing clutch lever and the mowing clutch lever are set to “on”, the mowing work can be performed, and the feed chain is also driven. Since the culm was disturbed at the transfer part, the harvesting device and the feed chain were stopped, and with the threshing clutch lever and the harvesting clutch lever in the "on" position, the main transmission lever was moved from forward to neutral or reverse. When the gear was shifted to, the reaping device stopped.

[0003]

[Problems to be solved by the device]

 However, in the conventional configuration in which the threshing clutch lever and the mowing clutch lever are “ON” and the main gear shift lever is in neutral or when the mowing device is stopped in reverse, the feed chain continues to rotate, and it is dangerous. The grain stalks sandwiched by the device were caught up and disturbed the posture of the grain stalks, which had an adverse effect on the threshing work.If the main shift lever was changed to neutral or reverse, the mowing operation would be affected. In the configuration in which the device and the feed chain are stopped, the cutting device and the feed chain are stopped at the same time, so that the transfer of the grains to the cutting device and the feed chain is interrupted, and the spillage of the grains and the posture of the grains are prevented. There was a problem that it became a disorder and adversely affected the threshing work.

[0004]

[Means for Solving the Problems]

 The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be described. Means for detecting "ON" of threshing clutch and harvesting clutch of combine, means for detecting neutral and reverse position of main gear shift lever, means for detecting traveling speed of combine, and ON / OFF of feed chain clutch If the threshing clutch lever and the reaping clutch lever are both "ON" and the main gear shifting lever is in the forward direction, the reaping clutch lever is set to "OFF" by connecting the means and the manual switch to the control circuit respectively. Is controlled to stop the feed chain after a delay time corresponding to the traveling speed. Then, when both the threshing clutch lever and the mowing clutch lever are in the "ON" state, if the main shift lever is shifted from forward to neutral or reverse, the harvesting device is stopped, the feed chain is stopped after a predetermined delay time, and the main shift is performed. When the lever is shifted forward, the feed chain is controlled after a predetermined delay time has elapsed after the harvesting device started to drive.

[0005]

【Example】

 The problems to be solved and the means for solving the present invention are as described above. Next, an embodiment will be described with reference to the accompanying drawings. FIG. 1 is an overall side view of a combine, FIG. 2 is a plan view of the same, and FIG. FIG. 4 is a side view of the main shift lever, FIG. 4 is a plan view thereof, FIG. 5 is a side view of a feed chain clutch portion, FIG. 6 is a plan view thereof, FIG. 7 is a control circuit diagram of the present invention, and FIG. 8 is a drive skeleton schematic diagram.

To explain the overall structure of the combine with reference to FIGS. 1 and 2, the machine body frame 2 is placed on the crawler type traveling apparatus 1, and the mowing device C is arranged in front of the machine body frame 2. In the harvesting device C, a weeding plate 6 is projected at the front end of the harvesting frame 3, and a raising case 4 is erected at the rear of the cutting frame 3, and a chain with a protruding tine is wound around the raising case 4. The movement causes the fallen grain culm, and a scraping device, an upper transporting device and a lower transporting device are provided at the rear of the raising and lowering case 4, and the cutting blade 9 is attached to the mowing frame 3 below the scraping device. It is installed horizontally and cuts the stock of the grain culm and conveys it to the rear with the conveying device.

The root of the grain culm transported by the transporting device is sandwiched by the feed chain 20, the tip side is shredded by the handling cylinder 19 in the threshing chamber, and the culm is discharged outside by the straw chain 15. The grains after threshing are sorted, the refined grains are stored in the grain tank 17 on the side of the threshing chamber, the straw debris is discharged out of the machine, and the paddy in the grain tank 17 is discharged. The discharge auger 18 is loaded onto a truck or the like.

A driver's seat 16 is arranged in front of the Glen tank 17, an engine and a mission case 26 are arranged under the driver's seat 16, and as shown in FIG. Power is transmitted to the transmission case 26 via CL0, the hydraulic transmission in the transmission case 26 is shifted by the operation of the main transmission lever 5, and the harvesting device is operated via the crawler type traveling device 1 and the one-way clutch CL3. Power is transmitted to C, and a vehicle speed sensor 40 is arranged in the mission case 26 or near the axle. Further, power is transmitted from the output shaft of the engine E to the handling barrel 19, the conveyor, the straw processing device and the feed chain 20 via the threshing clutch CL2.

An operating column 12 is erected at the front of the driver's seat 16, a one lever type steering lever 13 is projected on the operating column 12, and a side collum 22 is erected on the side of the seat 10. On the side column 22, a main transmission lever 5, an auxiliary transmission lever 23, a threshing clutch lever 7, a reaping clutch lever 8, a hand switch 25, etc. are arranged.

Then, as shown in FIGS. 3 and 4, the main transmission lever 5 is projected upward from the inside of the lever guide 22a on the side column 22, and the rotation base portion 5a of the main transmission lever 5 is attached to the ring ball. One end of a connecting rod 32 that is pivotally supported by a shaft 30 and that is connected to the speed change shaft of the hydraulic transmission is pivotally connected to the rotating base 5a. The end of the shaft 32a that pivotally supports the connecting rod 32 is connected to the end. Since the contact piece 31a of the main speed change switch 31 is disposed so as to be able to contact, the main speed change switch 31 is turned on when the main speed change lever 5 is turned to the neutral N or reverse R position, and the side column 22 The hand-operated switch 25 is provided on the upper side, and the hand-operated switch 24 is also disposed near the feed chain 20.

Further, the drive transmission part of the feed chain 20 is disposed at the rear part of the feed chain 20, and as shown in FIG. 6, a belt 42 wound around a pulley that drives a first conveyor or a second conveyor. Is wound around a pulley 44 on the drive shaft 43, and is transmitted to a toothed wheel 49 loosely fitted to a feed chain drive shaft 47 via gears 48 and 50 in a gear case 45. The shaft 46 is for driving the dust collecting fan 41, and the sprocket 34 around which the feed chain 20 is wound is fixedly provided at the end of the feed chain drive shaft 47.

A sliding body 51 fitted in a spline is externally fitted on the central portion of the feed chain drive shaft 47, and a clutch pawl 51a is formed at one end of the sliding body 51. The clutch pawl 51a faces the clutch pawl 51a. A feed chain clutch CL1 is formed by forming a clutch pawl 49a on the gear 49, and the sliding body 51 is biased by a spring 52 in the clutch engagement direction, and a cam groove 53 is formed on the sliding body 51. When the pin 54 that can be inserted into the cam groove 53 is rotated, the cam groove 53 is cut in a direction that separates the sliding body 51 from the clutch pawl 49a. Therefore, when the pin 54 is inserted into the cam groove 53, Power transmission is cut off. Then, the detection switches 33a and 33b for detecting the respective positions of the pin 54 in the ON (the state where the pin 54 is separated from the sliding body 51) and the OFF (the state where the pin 54 is inserted in the cam groove 53) positions are provided. It is arranged.

As shown in FIG. 5, one end of a bell crank arm 55 is pivotally supported at the other end of the pin 54, the center of the bell crank arm 55 is pivotally supported by a shaft 56, and the other end thereof is connected with a connecting arm. The arm 57 is connected to the spring 58, the other end of the connecting arm 57 is pivotally supported in the middle of the arm 59, the arm 59 is rotatable about a shaft 60, and the tip of the arm 59 protrudes from the speed reduction case 62. The rotation arm 61 is pivotally supported, and the deceleration case 62 is connected to the output shaft of the feed chain clutch motor M. The feed chain clutch motor M is driven to rotate the rotation arm 61. The pin 54 is slidable in the insertion / removal direction via the arm 59, the connecting arm 57, and the bell crank arm 55.

[0014]

[Table 1]

By the way, the feed chain drive control mechanism of the present invention, depending on the positions of the threshing clutch lever 7, the mowing clutch lever 8 and the main shift lever 5, drives and stops the threshing device, the mowing device and the feed chain as shown in Table 1 above. As shown in FIG. 7, the control circuit 67 includes a threshing clutch lever switch 7a, a reaping clutch lever switch 8a, a vehicle speed sensor 40, a manual switch 24 (25), and a manual pilot lamp 65 (66). ), The main clutch switch 35, the main speed change switch 31, the detection switches 33a and 33b, the feed chain clutch motor M, and the power source 70 are connected, and the threshing clutch lever switch 7a and the threshing clutch lever 7, the cutting clutch lever switch 8a and the reaping clutch lever 8 are both in the "on" position. The main clutch switch 35 is turned on when the main clutch pedal is depressed.

The control in Table 1 will be described next. With the threshing clutch lever 7 "ON" and the threshing clutch lever switch 7a turned ON, the harvesting clutch is turned ON and the main speed change lever 5 is turned to the forward position. When moved, normal mowing and threshing operations can be performed, and the threshing device, mowing device and feed chain are driven. This is in the “C” state, and when the cutting clutch is turned OFF from this state, it becomes a “D” state, which may be dangerous if the reaping device such as when traveling in the headland is activated. Although the device and the feed chain are stopped, the feed chain is stopped by the signal from the vehicle speed sensor 40 after a delay time proportional to the speed after the cutting device is stopped, that is, the feed chain clutch CL1 is turned off. Of.

Further, when the main transmission lever 5 is rotated from the state of “C” to the neutral N or the reverse R position, the state becomes “B”, and there is an obstacle in the front at the time of work or a forward movement due to a cutting error or the like. It is when the mowing device and the feed chain are stopped, but at this time, like the above, the mowing device is stopped after a delay time proportional to the speed. Then, when the main transmission lever is turned to the forward side again, the feed chain is driven after a delay of a predetermined time from the start of driving the mowing section.

When the cutting clutch is turned on from the state of “b”, the state becomes “a”, the feed chain is driven, and the culms sandwiched by the feed chain can be discharged. It is possible to carry out handling work, and the state is the same as that of "e" when the hand handling switch 24 (25) is pressed. However, in the case of “e”, the feed chain can be driven and threshing while moving forward.

[0019]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects. First, if both the mowing and threshing clutches are "ON" and the main shift lever is in the forward position and the mowing clutch is set to "OFF", the feed chain will stop with a delay time corresponding to the speed after the mowing device stops. Since there is no spillage or turbulence at the transfer section from the mowing section to the feed chain, it can be smoothly transferred to the feed chain and stopped while maintaining the posture, and threshing can be performed very efficiently. It will be.

Secondly, when both the mowing and threshing clutches are “ON” and the main speed change lever is turned from the forward state to the neutral or reverse direction, the feed is performed after a delay of a predetermined time after the mowing device is stopped. Since the chain will stop, there will be no culm or turbulence at the transfer section, and when it is moved forward again, the feed chain will be driven after a specified time delay from the start of driving the mowing section, so the amount of culm will start after cutting. It is not inherited as small as it is, but it is inherited in the feed chain after the amount of culms is large, so there is no culling and disordered posture in the inheritance section, and threshing can be carried out efficiently.

[Brief description of drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of a main shift lever.

FIG. 4 is a plan view of the same.

FIG. 5 is a side view of a feed chain clutch unit.

FIG. 6 is a plan view of the same.

FIG. 7 is a control circuit diagram of the present invention.

FIG. 8 Schematic diagram of the driving skeleton

[Explanation of symbols]

 C Mowing device M Feed chain clutch motor 7a Threshing clutch lever switch 8a Mowing clutch lever switch 35 Main shift lever switch 40 Vehicle speed sensor 67 Control circuit

Claims (2)

[Scope of utility model registration request] 1. A threshing clutch for a combine harvester, a means for detecting "on" of a reaping clutch, a means for detecting a neutral position and a reverse position of a main transmission lever, a means for detecting a traveling speed of a combine, and a feed chain clutch. ON
・ When the threshing clutch lever and the reaping clutch lever are both "ON" and the main shifting lever is shifted forward, the cutting clutch lever is set to "OFF" by connecting the means for turning off and the hand-operated switch to the respective control circuits. A feed chain drive control device characterized in that the feed chain is controlled so as to be stopped after a delay time corresponding to the traveling speed after the reaping device is stopped. 2. A threshing clutch for a combine harvester, a means for detecting "on" of a harvesting clutch, a means for detecting a neutral position and a reverse position of a main transmission lever, a means for detecting a traveling speed of a combine, and a feed chain clutch. ON
・ When the threshing clutch lever and the reaping clutch lever are both in the "ON" state by connecting the means for turning off and the hand switch to the control circuit respectively, and when the main shifting lever shifts from forward to neutral or backward, the reaping device stops and the predetermined The feed chain drive control device is characterized in that when the feed chain is stopped after the delay time of, and the main gear shift lever is shifted forward, the mowing device starts driving and then the feed chain is driven after a predetermined delay time.