JP3088083B2 - Cutting and threshing on-off clutch in combine harvester - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clutch for cutting and threshing on / off in a combine. 2. Description of the Related Art Various types of work clutches are provided in a combine, and the clutches frequently operated are a reaping clutch and a threshing clutch. At the time of mowing and threshing work, while turning on the threshing clutch with the threshing clutch engaged,
The reaping unit is also driven with the reaping clutch engaged. And
When the cutting of one side of the field is completed and the machine is rotated toward the other side, the cutting clutch is disengaged and the driving of the cutting section is stopped each time. [0003] Such a clutch can be provided at a low cost if it is formed as a tension clutch type. in this case,
Each tension belt leading to the mowing section and the threshing section is tensioned and relaxed by contacting and detaching each tension roller, and these tension rollers are connected to each connecting member (b).
And a thrust clutch lever and a threshing clutch lever. [0004] These mowing clutch levers and threshing clutch levers are provided adjacent to the driver's seat in order to enhance operability. As an arrangement of the cutting clutch lever and the threshing clutch lever, for example,
Japanese Patent No. 116828 discloses that a mowing clutch lever and a threshing clutch lever are pivotally supported on a front-rear support frame provided near a driver's seat, and the connecting members are connected to the mowing clutch.
The same direction in the front and rear direction from the lever and threshing clutch lever (specific
To the rear), and the lever in the support frame
The rear part of the shaft support is supported by a support member fixed to the fuselage side.
The held configuration is described. However, in a tension type clutch, a connecting member is connected to the tension roller in order to make the tension roller contact and separate against the tension of the tension belt. Through the shaft of the clutch lever
A considerable reaction force acts on the branch . So, for example,
As described in JP-A-60-116828
In addition, the base of the cutting clutch lever and threshing clutch lever
To each other, and from each clutch lever to each tension
When the connecting member to the roller is disposed in the same direction in the front and rear direction , for example, when one of the reaping clutch levers is turned on and off, the reaction force causes the shaft support to move up and down or move back and forth . As a result,
The other threshing clutch lever provided on the approaching shaft support also moves up and down or moves back and forth, so that the distance from the threshing clutch lever to the tension roller changes, and the linking member therewith. Of the threshing clutch. [0006] The present invention has taken the following technical means in order to solve the above-mentioned problems. That is, the engine 3, the input shaft 31 of the cutting unit, the input shaft 20 of the threshing unit, the cutting tension belt 33 provided between the engine 3 and the input shaft 31, the engine 3, and the input shaft 2
0, a threshing tension belt 22, a cutting tension roller 34 for tensioning and relaxing the cutting tension belt 33, a threshing tension roller 23 for tensioning and relaxing the threshing tension belt 22, and a cutting connection of the cutting tension roller 34. A mowing clutch lever 16 operated via a member 36 and a threshing clutch lever 15 operating the threshing tension roller 23 via a threshing connecting member 25 are provided, and respective bases of the mowing clutch lever 16 and the threshing clutch lever 15 are provided. And a support member 12 in the front-rear direction provided near the driver's seat. The support member 12 is supported by a vertical support member 37 fixed to the fuselage near the support portions of the levers 16 and 15. The cutting connection member 36 and the threshing connection member 25 are Is obtained by the cutting in the combine threshing turn on and off the clutch arrangement, characterized in that arranged in the longitudinal distribution shape with respect to member 37. With this configuration, when the threshing clutch lever 15 is operated while the engine 3 is driven, the threshing tension roller 23 presses the threshing tension belt 22 through the threshing linking member 25 to tension the threshing tension belt. The power of the engine 3 is input to the input shaft 20 of the threshing unit, and the threshing unit is driven. Also, the reaping clutch lever 16
When the cutting operation is performed, the cutting tension roller 34 presses and tensions the cutting tension belt 33 via the cutting connecting member 36, whereby the power of the engine 3 is input to the input shaft 31 of the cutting section, and the cutting section is driven. Is done. As described above, when each clutch is engaged or disengaged, the tension rollers 23, 34 are brought into and out of contact with the tension belts 22, 33, so that threshing from the tension rollers 23, 34 is performed. Linking member 2
5, and the respective clutch levers 15,
A reaction force acts on the shaft support portion of the 16 support members 12.
However, since these connecting members 25 and 36 are arranged in a longitudinally distributed manner with respect to the vertical support member 37 fixed to the body, even if the above-described reaction forces act simultaneously, the reaction forces are not equal to each other. Since they act in opposite directions to cancel each other, there is a feature that the longitudinal movement of the shaft supporting portions of the clutch levers 15 and 16 is reduced. In addition, with such a configuration, the vertical movement of each of the clutch levers 15 and 16 is reduced, and the operability of the on / off operation of the mowing and threshing clutches is not deteriorated. [0010] In addition, supported of each clutch lever -15,16
The strength can be maintained without unnecessarily increasing the support strength of the portion, and the configuration can be simplified. As described above, according to the present invention, the engine 3
An input shaft 31 of the cutting unit, an input shaft 20 of the threshing unit, a cutting tension belt 33 provided between the engine 3 and the input shaft 31, and a threshing tension belt 22 provided between the engine 3 and the input shaft 20. And the cutting tension belt 33
Tension roller 34 that tensions and relaxes, threshing tension roller 23 that tensions and relaxes the threshing tension belt 22, and the harvesting tension roller 34
And a threshing clutch lever 15 for operating the threshing tension roller 23 via a threshing connection member 25. The cutting clutch lever 16 and the threshing clutch lever 15 are also provided. The respective bases are brought close to each other and supported by a front-back support member 12 provided near the driver's seat.
2 and the vicinity of the shaft support portions of both levers 16 and 15 are supported by a vertical support member 37 fixed to the fuselage side, and the cutting connection member 36 and the threshing connection member 25 are arranged in front and rear with respect to the vertical support member 37. Since the cutting and threshing on / off clutch in the combine is characterized by being arranged, the threshing clutch lever 15 and the cutting clutch lever 16 are provided.
The position of the shaft support is stabilized, and the on / off operability of both clutches is improved. [0012] In addition, supported of each clutch lever -15,16
It can also be advantageously configured in terms of the support strength of the part itself ,
By simplifying the configuration, assembling work at the time of manufacturing, maintenance at the time of working, and the like can be easily performed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. 1 is a frame, 2 is a traveling device mounted below the frame 1, and a front side of the frame 1. And an automatic feed threshing device for threshing the stalks cut by the cutting unit is provided above the frame 1. An engine 3 is provided at an upper right position on the front side of the frame 1. The upper surface and side surfaces of the engine 3 are surrounded by an engine cover 4, and a seat 5 is provided above the engine cover 4.
Is provided. 6 is an operation cover provided in front of the engine 3.
It is. A transmission device chamber 7 is formed on the left side of the engine 3, and a transmission case 8 from the engine 3 to the traveling device 2 is provided in the chamber 7. 9 is a mowing unit transmission frame. The left side of the operation unit cover 6 is located on the front side of the transmission room 7, and a rear wall 10 is provided on the rear upper portion of the transmission room 7, and the upper side of the transmission room 7 is covered with an upper wall 11. A support rod (support member) 12 in the front-rear direction, which is fixed to the rear wall 10 at the rear side and fixed to the operating portion cover 6 at the front side, is provided at an upper position in the transmission device chamber 7. I do. The support rod 12 is formed of a downward U-shaped channel steel.
3 is fixed, and a clutch shaft 14 in the left-right direction is horizontally provided on the mounting bracket 13. The lower portions of the threshing clutch lever 15 and the mowing clutch lever 16 are fixed to the clutch shaft 14 respectively. The engine 3 is provided with an output shaft 17,
A pulley 18 and a pulley 19 are fixed to the output shaft 17, respectively, and an input shaft 20 is provided below the threshing unit.
And the pulley-21 and the pulley-21
And a tension roller 23 is brought into contact with the tension belt 22. The tension roller 23 is axially fixed to a swing arm 24. The swing arm 24 has a lower end of a rod (linking member) 25 whose upper end is fixed to a threshing clutch lever 15, and a spring 26.
Connect via An input shaft 27 of the mission case 8 has a pulley 28 and a pulley-2.
The belt 9 is mounted between the pulley 18 and the pulley 29. Reference numeral 31 denotes a cutting input shaft provided at an upper position of the cutting section transmission frame 9. The cutting input shaft 31 has a pulley.
The tension belt 33 is hung between the pulley 28 and the pulley 32, and the tension roller 34 contacts the tension belt 33. The tension roller 34 is attached to the swing arm 35, and the swing arm 35
(Linking member) 36
Is connected to the reaping clutch lever 16. The upper end of the reinforcing support frame 37 is fixed to the lower position of the support rod 12 provided with the bearing mounting bracket 13, and the lower end of the support frame 37 is
It is fixed to a fixed member such as the transmission case 8. Next, the operation will be described. When the engine 3 is started and the traveling clutch is engaged, the output shaft 17 → pulley 18 → belt 30 → pulley 29
The rotation is transmitted from the input shaft 27 to the transmission case 8, and the traveling device 2 rotates to move forward and backward. Thus, the threshing clutch lever 15 is moved to the first position.
When the switch is turned on at the position indicated by the solid line in the figure, the rod 25 is moved upward, the swing arm 24 is rotated via the spring 2, and the tension roller 23 is pressed against the tension belt 22. The belt 22 is tensioned, and the rotation of the pulley 19 is transmitted to the pulley 21 via the tension belt 22 to rotate the input shaft 20, so that the threshing unit is operated. When the reaping clutch lever 16 is turned on, the rod 36 is pulled up, and the swing arm 35 is rotated to bring the tension roller 34 into contact with the tension belt 33 to make it tension. -Rotation of reel 28 is pulley
32 to rotate the reaper. As mentioned above,
When turning on the traveling clutch and the reaping clutch,
Threshing clutch lever 15 or mowing clutch lever
16 is rotated back and forth to rotate the tension roller 23 or the tension roller 34, so that each time the levers 15 and 16 are rotated, the support rod 12 applies a force. When the support rod 12 bends, the lever to be operated subsequently becomes uncertain. [0022] However, of supporting Ji杆12, in the portion that pivotally attached the clutch lever -16 harvesting and threshing clutch lever -15,
Since the upper end of the vertical support frame 37 is fixed and the lower end of the support frame 37 is fixed to the transmission case 8, there is no bending of the support rod 12, and the bending when one of them is rotated. Since it is eliminated, the other clutch operation can be accurately "on / off".

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view. FIG. 2 is a front view. DESCRIPTION OF SYMBOLS 1 Frame 2 Traveling device 3 Engine 4 Engine cover 5 Seat 6 Operating section cover 7 Transmission room 8 Transmission case 9 Cutting section transmission frame 10 Rear wall 11 Top wall 12 Support rod (Supporting member) 13 Mounting bracket 14 Clutch shaft 15 Threshing clutch lever 16 Harvesting clutch lever 17 Shaft 18 Pulley 19 Pulley 20 Threshing input shaft 21 Pulley 22 Tension belt 23 Tension roller 24 swing arm 25 rod 26 spring 27 input shaft 28 pulley 29 pulley 30 belt 31 cutting input shaft 32 pulley 33 tension belt 34 tension roller 35 swing arm 36 rod 37 support Toframe (support member)

Claims (1)

(57) [Claims] The engine 3, the input shaft 31 of the cutting unit, the input shaft 20 of the threshing unit, the cutting tension belt 33 provided between the engine 3 and the input shaft 31, and the threshing tension provided between the engine 3 and the input shaft 20. a belt 22, a tension roller 34 reaper tensioning relaxing the reaper intensifier <br/> Yonberuto 33, reaper the threshing tension roller 23 for tensioning relaxing the threshing tension belt 22, the reaper Seal Script <br/> Nrora 34 cooperative a clutch lever 16 reaper operating through the member 36, provided with a threshing clutch lever 15 for operating via a threshing interlocking member 25 to the threshing tension roller 23, the reaper clutch lever 16
And the thrusting clutch lever 15 are brought close to each other and pivotally supported by a longitudinal support member 12 provided near the driver's seat,
Shaft support of both levers 16 and 15 in support member 12
The vicinity is supported by the fixed vertical support member 37 on the fuselage side.
And the cutting connection member 36 and the threshing connection member 25
Are arranged in the front and rear direction with respect to the vertical support member 37.
A cutting and threshing on / off clutch in a combine, characterized in that: