JPH07125646A - Pivoting device of combined harvester - Google Patents

Abstract

PURPOSE:To realize sorting in high precision by providing a checking device to stop actuating a spin turn mechanism pivoting a car body at a current position when a grain threshing device is in the middle of sorting work. CONSTITUTION:Normally at a place where a field is hard and not so much of slewing place can be secured, a spin turn is selected by operating an operation lever 75. Thereby, a travelling car body can be slewed at the place as left and right endless belts rotate in the opposite directions to each other. In this case, when an article to be sorted on an oscillating sorting shelf is detected and measured by a detection device 73, its signal is sent to a controller 74 and it recognizes that grain threshing and sorting are carried out. Continuously, the controller 74 checks operation of the operation lever 75 to the spin turn by sending an output signal to a checking lever 77.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turning device for combine harvesters and is used for a traveling device having an endless belt.

[0002]

2. Description of the Related Art A turning device in a conventional combine is
A turning device that uses a side clutch and side brakes,
A swivel device that drives the inner endless belt at a lower speed than the outer endless belt at a slower speed to make larger turns, and a spin turn device that makes the left and right endless belts rotate in opposite directions to make a sharp turn on the spot are used. Had characteristics.

Therefore, the spin turn device is very effective because it can make a small turn when turning a traveling vehicle in a narrow field, but there is a problem in performing a spin turn in a weak field or during threshing selection. It was

[0004]

That is, the spinner is
As is well known in the art, since a pair of left and right endless belts for traveling reversely drive the vehicle body to turn the traveling vehicle body on the spot, it has the advantage of being able to turn in a narrow place, but on the other hand, on the other hand, in weak fields. However, there was a defect that the endless zone destroyed the surface of the field with the turning and damaged the soil. Further, since this spin turn device turns while the traveling vehicle body is swung on the spot, there is a problem in that a processed object being sorted inside the machine is swung around and disturbs accurate sorting.

Therefore, the present invention is intended to solve the above-mentioned problems by adopting a construction in which a spin turn cannot be performed while the threshing device is sorting threshing.

[0006]

The present invention takes the following technical means in order to solve the above problems. That is, a mowing device and a threshing device are provided on a traveling vehicle body having a traveling device consisting of a pair of left and right endless belts, and the endless belt on one side is rotationally driven in the opposite direction to the endless belt on the other side in the traveling device. Spinter that turns the running car body on the spot
Is a turning device for an endless traveling vehicle equipped with a check mechanism that does not operate during the sorting operation of the threshing device.

[0007]

EXAMPLE First, the structure will be described. The traveling mission device 1 has an input shaft 2 horizontally provided at an upper position, and a hydraulic transmission 3 is attached to one end of the input shaft 2. A large gear 4 and a small gear 5 are loosely fitted to the input shaft 2, and a speed increasing clutch 6 is provided between the large gear 4 and the small gear 5 and the input shaft 2 so that the rotation of the input shaft 2 is always a large gear. 4 or the small gear 5 is transmitted. A first intermediate shaft 7 fixes a small gear 8 that constantly meshes with the large gear 4 and a large gear 9 that constantly meshes with the small gear 5. 10 is a transmission gear fixed to the first intermediate shaft 7, 11 is a sub-transmission shaft, and 12 is a small gear that is loosely fitted in the sub-transmission shaft 11 and always meshes with the large gear 9. Numeral 13 is a large gear which is always meshed with the transmission gear 10 and is loosely fitted on the auxiliary transmission shaft 11. Gear 13
Is provided with a transmission gear 14 that integrally rotates, and the transmission gear 14 is provided on the sub-transmission shaft 11 between the transmission gear 14 and the small gear 12.
Alternatively, a transmission member 15 that transmits either rotation of the small gear 12 to the auxiliary transmission shaft 11 is provided.

Reference numeral 16 denotes a drive gear fixed to the auxiliary transmission shaft 11,
Reference numeral 7 is a passive gear fixed to the side clutch shaft 18, and is always meshed with the drive gear 16. Left and right rotary drums 19 and 19 'are provided on both left and right sides of the side clutch shaft 18, and the left and right clutches 2 are provided in the left and right rotary drums 19 and 19'.
0, 20 'and left and right brakes 21, 21' are provided. The side clutch gears 36 and 36 'rotate when the side clutch shaft 18 is loosely fitted and the side clutches 20 and 20' are turned on, and when the brakes 21 and 21 'are operated,
The rotation is braked.

Reference numeral 38 denotes a mode selecting shaft provided in parallel with the side clutch shaft 18 in parallel. The mode selecting shaft 38 has intermediate gears 39 and 39 which are constantly meshed with the side clutch gears 36 and 36 '. 'Is loosely fitted, and the intermediate gears 39, 3
Mode selection clutches 40, 40 'are provided between 9'and the mode selection shaft 38. Reference numerals 41 and 41 ′ are intermediate gears that rotate integrally with the intermediate gears 39 and 39 ′, 42 and 42 ′ are reduction shafts that transmit rotation to an axle, and 43 and 43 ′ are reduction gears that constantly mesh with the intermediate gears 41 and 41 ′. is there.

However, in the vicinity of the mode selection axis 38,
A mode switching shaft 45 is provided, and a spin turn gear 46 and a slowly turning mode gear 47 are loosely fitted to the mode switch shaft 45.
The spin mode gear 46 always meshes with the transmission gear 48 that rotates integrally with the passive gear 17, and the slow turning mode gear 47 always meshes with the transmission gear 14 and slowly spins with the spin mode gear 46. For mode switching between the mode gears 47, the sliding gear 49 always meshes with the transmission gear 50 fixed to the mode selection shaft 38, and the sliding gear 49 and the spin gear 46 rotate gently. A neutral position located in the middle of the mode gear 47, a spin position that slides left and right and engages with either the spin mode gear 46 or the slow turning mode gear 47 to rotate, and a spin position and a loose position. It is configured to be switched to the turning position by the shifter 51.

The traveling vehicle body 52 is provided with a traveling device 54 consisting of a pair of left and right endless belts 53, 53 ', and is constructed so that it can be transmitted from the reduction shafts 42, 42' through the axle 55 and the drive sprocket 56. . And
The reaping device 57 has a rear part pivotally attached to the traveling vehicle body 52 so as to be pivotable up and down, and a reaping transfer frame 58 extending forwardly from the front part of the weeding rod 59, a grain culm raising device 60, a cutting blade 61, and a grain. The culm conveying device 62 is integrally provided so that the grain culm can be cut and conveyed.

The threshing device 63 exposes the starting end portion of the feed chain 64 to the end portion of the grain culm transporting device 62, inherits the grain culm that has been cut and transported, and supplies it from the supply port 65 to thresh. It is configured to do. And the threshing device 63
Is provided with a handling chamber 67 in which a handling barrel 66 is mounted on the upper part, and below the handling chamber 67 is a compressed-air Kara 68, a transfer shelf 69a, and a chaff sieve 6.
A swinging sorting shelf 69 made of 9b, etc., a sorting chamber 72 provided with a first transfer spiral 70 and a second transfer spiral 71 are configured.

In the sorting chamber 72, a detection device 73 for detecting a leaked substance leaking from the handling chamber 67 is provided on the upper surface of the transfer rack 69a of the rocking sorting rack 69, and the amount thereof can be detected. The control device has a circuit configuration capable of transmitting the detection result of the detection device 73 to the controller 74,
The check rod 77 can be projected from the controller 74 into the guide passage 76 of the operation lever 75. Therefore,
When the detection device 73 detects a leaked substance from the handling chamber 67 in the sorting chamber 72 on the upper surface of the swing sorting shelf 69, the operation lever 75 determines that the sorting operation is being performed, and moves the operation lever 75 to the spin turn side. The configuration is such that it cannot be operated.

Other Embodiment 1 In another embodiment shown in FIGS. 6, 7 and 8, the chaff sheave 69b is operated in the direction of closing the mesh in conjunction with the operation of the spin turn. That is, the operation lever 75
Is provided with a spin detection switch 79 at its base, and when a spin operation is detected, the motor 80 is started to operate the operation gear 81.
Is driven to pull the connecting rod 83 through the wire 82, and the rocking rod 84 forming the chaff sheave 69b is tilted to close the mesh.
When the rocking rod 84 constituting the chaff sheave 69b of No. 9 shifts to the spin operation, the spin detection switch 79 is operated by the operation lever 75 to drive the motor 80, the operation gear 81, the wire 82, It is operated in the falling direction via the connecting rod 83 to close the mesh.

Therefore, a leaked substance which has leaked from the handling chamber 67 and reaches the swinging sorting rack 69 can fall into the sorting chamber 72 below the swinging sorting rack 69 on the upper surface during the spin action. Instead, the first transfer spiral 70 and the second transfer spiral 71 are characterized in that it is extremely unlikely that straw chips and cuttings are mixed. As described above, in this embodiment, even if the spinning operation is performed during the sorting operation, the sorting trouble due to the spin turn can be minimized.

Second Embodiment The mowing device 57 is supported by a hydraulic cylinder 85 so as to be able to move up and down with a pivotal portion of the base of the mowing transport frame 58 as a fulcrum. Then, the hydraulic cylinder 85 is configured so that it can be extended and spin-operated after a predetermined time. According to this structure, the spin turn device can be operated when the sorting operation is substantially completed after the cutting device 57 is raised after the work is completed.

Therefore, according to this embodiment, since the traveling vehicle body 52 can be turned by the spin turn after the work of one stroke is completed, the reaper 57 can be raised and a predetermined time has elapsed, so that the sorting operation can be performed. The spin operation has little adverse effect. Next, the operation will be described.

First, the prime mover is started to start the hydraulic transmission 3.
The rotational power transmitted to is transmitted to the input shaft 2, the speed increasing clutch 6, the small gear 5, the large gear 9, and the small gear 12. And
The rotational power is further transmitted to the side clutch shaft 18 via the drive gear 16 and the passive gear 17 by rotating the auxiliary transmission shaft 11 by engaging the transmission member 15. In normal traveling, the rotational power is set to the side clutch shaft 18, the side clutch gears 36 and 36 ', the intermediate gears 39 and 39', and the intermediate gear 4 when the left and right clutches 20 and 20 'are turned on.
1, 41 'and reduction gears 43, 43'. The rotation of the reduction gears 43, 43 ′ reaches the axle 55 and the drive sprocket 56 from the reduction shafts 42, 42 ′ to reach the traveling device 54 and the endless belt 5.
Propagate 3, 53 '.

In this manner, the traveling vehicle body 52 starts the cutting and threshing work by starting the rotating parts of the machine body while moving forward. Then, the grain culm in the field is weeded by the front shunt rod 59, and then the grain culm raising device 60 causes it to reach the cutting blade 61 and be cut. And
The cut grain culm is conveyed by the grain culm conveying device 62, passed to the starting end of the feed chain 64, and supplied to the threshing device 63.

As described above, the grain culm reaches the handling chamber 67 from the supply port 65 in a state where the stock is held by the feed chain 64 as described above, and is threshed by the handling barrel 66 which is rotationally driven. It Then, the threshed grains that have been threshed are dropped from the handling chamber 67, reach the swinging sorting shelf 69 that is continuously swinging, and are sorted, and further reach the sorting chamber 72 below to remove the threshing from the compressed air Karako 68. The first transfer spiral 7 that is selected by receiving the sorting wind
Sorting processing is performed on each of the 0th, 2nd transfer spiral 71, and 3rd mouth.

In this way, when the traveling vehicle body 2 continuously carries out the mowing and threshing work and finishes the work on the outward path to reach the end of the field and turns, three turning methods can be selected. The first turning method, that is, the pivot turn has one of the side clutches 20 and 20 'disengaged, and the side brakes 21 and 21' of the side clutch disengaged side are actuated to produce the endless belt 53. , 53 'is stopped to bring it into a braking state, and the other endless belt 5 being driven.
The traveling vehicle body 52 is turned by 3.

In the second turning method, that is, the gentle turning, first, one of the left and right clutches 20 and 20 'is turned off. The rotational power is transmitted to the mode selection shaft 38 via the transmission gear 10, the large gear 13, the transmission gear 14, the slowly turning mode gear 47, the sliding gear 49, and the transmission gear 50 of the first intermediate shaft 7. Then, the mode selection clutch 40 corresponding to the left and right clutches 20 and 20 'which are turned off.
When 0'is entered, left and right reduction shafts 42, 4
2 ′ rotates at a predetermined deceleration ratio and makes a gentle turn.

In the third turning method, that is, the spin turn, the rotational power is applied to the spin mode gear 46 and the sliding gear 4.
9, the transmission gear 50 and the mode selection shaft 38, and the rotation of the spin mode gear 46 is transmitted from the side clutch shaft 18 provided integrally with the passive gear 17. Rotation of shaft 38 and side clutch gear 3
Intermediate gears 39, 3 which are rotated by being transmitted from 6, 36 '
The rotations of the left and right clutches 9'are opposite to each other, and the mode selection clutch 4 corresponding to the left and right clutches 20 and 20 'that are disengaged.
When 0 and 40 'are turned on, the left and right reduction shafts 4
2, 42 'rotate in reverse to each other and perform spin turn.

Therefore, the operator selectively uses the above-described turning methods according to the field conditions (hardness and softness), the size of the turning place, and the like as the turning method of the traveling vehicle body 52. Usually, in a place where the field is hard and the turning place is not so wide, the operation lever 75 is operated to select the spin turn which is the third turning method described above. Then, in the traveling vehicle body 52, the left and right endless belts 53, 53 'rotate in mutually opposite directions and can turn on the spot.

In this case, in the configuration of the present invention, the controller 74 sends a signal when the object to be sorted on the rocking sorting shelf 69 is detected and measured by the detection device 73, and threshing sorting is performed. Recognize that you are inside. Next, the controller
The la 74 sends an output signal to the check rod 77 to operate the lever 7.
The operation to the spin turn of No. 5 will be restrained. As described above, during the threshing selection work, the operation lever 75
Since the spin turning is not possible, the turning is stopped until another turning method is selected or the threshing selection operation is completed.

In this way, the threshing-untreated product does not move and concentrate on the outside of the threshing device by the rapid swirling action, so that the threshing device does not cause a sorting obstacle and has a highly accurate action. Can be expected.

[0027]

As described above, according to the present invention, a traveling vehicle body having a traveling device composed of a pair of left and right endless belts is provided with a mowing device and a threshing device, and the traveling device is provided with one endless belt. An endless belt on the other side is rotationally driven in the opposite direction and provided with a spin turn mechanism for turning the traveling vehicle body on the spot. The spin turn mechanism does not operate during the sorting operation of the threshing device. Since the restraint device is provided, spin turning is not performed during threshing selection, and the sorting effect is not disturbed by the turning of the traveling vehicle body, and a unique effect of highly accurate sorting can be obtained.

[Brief description of drawings]

FIG. 1 is a plan view showing a guide passage according to an embodiment of the present invention.

FIG. 2 is a block circuit diagram of a control circuit according to an embodiment of the present invention.

FIG. 3 is a front sectional view of a threshing device according to an embodiment of the present invention.

FIG. 4 is a side sectional view of a threshing device according to an embodiment of the present invention.

FIG. 5 is a side view showing the operation of the combine, which is one embodiment of the present invention.

FIG. 6 is a side view showing the operation of the chaff sheave according to another embodiment of the present invention.

FIG. 7 is a side view showing the operation of the chaff sheave according to another embodiment of the present invention.

FIG. 8 is a side view showing the operation of the chaff sheave according to another embodiment of the present invention.

FIG. 9 is a diagram showing a traveling mission device according to an embodiment of the present invention.

FIG. 10 is a side view showing the transmission paths of the traveling mission device in a distinctive manner, which is one embodiment of the present invention.

[Explanation of symbols]

52 traveling vehicle body 53, 53 'endless belt 54 traveling device 57 cutting device 63 threshing device 77 check rod

Claims (1)

[Claims] 1. A mowing device and a threshing device are provided on a traveling vehicle body having a traveling device composed of a pair of left and right endless belts, and the traveling device has one endless belt in the opposite direction to the other endless belt. A spinner that rotates and turns the traveling vehicle on the spot.
Turning device of a combine equipped with a check mechanism that does not operate during the sorting operation of the threshing device.