JPS6028183Y2 - Combine operating device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a combine operating device that controls power transmission to each part.

A self-removal type combine harvester consists of a reaping section, a threshing section, a running section, and other attached devices, and the operating device that controls the power transmission to each of these sections is generally installed on the side of the threshing section in a riding combine harvester. In a walking type combine harvester, these operating devices are concentrated at the rear end of the machine because the operator steers the machine while walking following the rear of the machine.

On the other hand, all the power transmission parts such as the engine that is the drive source of each part, the gearbox that houses the clutch and gear device operated by these operating levers, the running latch, and the hydraulic system are all located in the threshing part and the reaping part. It is centrally located between.

In other words, since the operating lever and the power transmission section are located in front and behind the threshing section with the threshing section in between, the rods and wires that connect these operating levers and the power transmission section have conventionally been placed around the threshing frame. It was set up.

Therefore, the number of connecting parts increases and the shaft length becomes longer, so play in the connecting parts and twisting of the shaft are accumulated, and not only does the power transmission part not respond sensitively to the movement of the operating lever,
Since these rods are exposed outside the threshing frame, they occupy a large space, which is a major obstacle to downsizing and compacting the machine.

The present invention was developed in view of the above points, and the rods and wires connecting the operating lever and the power transmission section are provided through the space in the leg of the threshing frame between the left and right running rollers. By connecting the two in a straight line over a short distance, there is little play in the connecting parts, there is little twisting of the shaft, and switching operations of the power transmission parts are reliable, and the structure is compact, allowing for downsizing of the machine. The present invention provides a combine harvester operating device that can be used for measuring.

Hereinafter, its configuration and the like will be explained in detail with reference to embodiments shown in the drawings.

1 to 5 show the operating device for a combine harvester according to the present invention, FIG. 1 is a side view of the combine in which this is implemented, FIG. 2 is also a plan view, and FIG. 3 is also a rear view.
4 is a front view of the operating device shown in FIG. 2, partially cut away and viewed in the direction of arrow A, and FIG. 5 is a side view of the operating device shown in FIG. 2, also partially cut away.

In these figures, a combine harvester 1 consists of a reaping section 2, a threshing section 3, a running section 4, and other attached devices.
Further includes a weed cutting body 5, a pulling device 6, a cutting blade 7, a culm conveying device 8, and the like.

The threshing frame 9 of the threshing section 3 also includes a handling chamber 11 that stores a handling drum 10, a sorting chamber 12 that stores a sorting device and extends in the machine width direction from below the handling chamber 11, and a sorting chamber. 1
The legs 13 of the threshing frame 9 are integrally formed with the legs 13 that are formed below the threshing frame 9 so as to be narrow in the width direction of the machine. It faces between the rollers 14 and is supported by its running frame 15.

The running roller 14 is composed of a drive wheel 16, a plurality of running wheels 17 that are pivoted to the running frame 15, and an endless crawler track 18 stretched between these rotating bodies 16 and 17. There is.

Further, on the side of the threshing frame 9, a feed chain 19 for conveying grain culms is stretched along the handling chamber 11.

Each part configured as outlined above 2. 3. A power transmission device for 4 is arranged between the reaper 2 and the threshing section 3.

First, the engine 20, which is the driving source of the whole, is equipped with three driving pulleys 21, one of which is connected by a belt to a hydraulic pump 22 for raising and lowering the reaping section 2, and the other two are connected by a belt. A threshing drive shaft 24 and a cutting shaft 25 of a traveling gear box 23 attached to the front end of the traveling frame 15 are connected by belts, respectively.

Of these, the threshing drive shaft 24 is rotatably supported by the traveling gear box 23, and is connected by a belt to the handling cylinder 10, the feed chain 19, the winnowing machine 26 of the sorting device, and the like.

A threshing clutch 27 is provided on the belt connecting the engine 20 and the threshing drive shaft 24, and the threshing unit 3
It is designed to connect and disconnect the drive of the

Further, the input shaft 25 is rotatably supported by the traveling gearbox 23, and the belt connecting this and the engine 20 is provided with a running latch 28, which tensions and loosens the belt with its pulley. By doing so, the rotation of the input shaft 25 is connected and disconnected.

The traveling gearbox 23 is divided into a housing and a lid, which are integrated by bolts, and FIG. 4 shows the inside of the housing excluding the lid.

The input shaft 25 is pivotally supported by the traveling gearbox 23.
An input pulley 29 is pivotally attached to the input pulley 29, and a bevel gear 32 meshes with a pair of bevel gears 31 loosely mounted on a drive shaft 30 orthogonal to the input shaft 25 with their tooth surfaces facing each other.
is attached to the shaft.

Then, a switching clutch (not shown) that is slidably but non-rotatably fitted on the drive shaft 30 is slid by a switching shifter 33 to selectively connect to the clutch surface of one of the pair of bevel gears 31. By engaging the input shaft 25
The rotation of the drive shaft 30 is transmitted to the drive shaft 30 in forward and reverse directions.

Further, the switching shifter 33 is pivotally attached to a shifter shaft 34, and furthermore, a shifter arm 35 is pivotally attached to the other end of the shifter shaft 34.

A reaping drive shaft 36 connected to the drive shaft 30 by a chain is pivotally supported above the drive shaft 30, and its rotation is controlled by a reaping latch (not shown), which is a one-way clutch. The information is transmitted to section 2.

Further, a transmission gear shaft 37 is supported below the drive shaft 30 and is gear-coupled to the drive shaft 30.
A transmission gear 38 formed by three gears is slidably fitted, and is slid by a transmission thick shaft 39 to selectively mesh with three gears on a transmission shaft 40 below it. By doing so, the rotation of the drive shaft 30 is transmitted to the transmission shaft 40 in three stages.

Furthermore, a pair of left and right clutch gears 44 are slidably fitted onto the clutch shaft 43 which is connected to the speed change shaft 40 by gears 41 and 42, while axially below the clutch shaft 43 A gear 46 is respectively attached to a pair of traveling drive shafts 45 which are divided into two and mounted on a shaft.
By sliding the clutch gear 44 by the clutch shifter 47 and meshing one or both of them with the internal gear of the gear 42, one or both of the traveling drive shafts 45 can be rotated at the same time. being done.

The driving wheel 16 of the traveling roller 14 is rotatably mounted on this traveling drive shaft 45 .

Threshing clutch 2 of the power transmission device configured as above
7. Running latch 28, reaping latch, switching shifter 33
, an operating device 48 for operating the speed change shifter 39 and the clutch shifter 47 is provided at the center of the rear force of the threshing frame 9 in the machine width direction.

The operation box 49 of this operation device 48 is attached to the rear side plate 9a of the threshing frame 9, and on the top thereof,
A running latch lever shaft 50 is supported.

In the center of the latch lever shaft 50 that moves, there is a
A lever guide 51 is rotatably mounted on a shaft, and the lever guide 51 has a front-view letter which holds a running latch lever 52, which is swingably pivoted to a running latch lever shaft 50, through a long groove. The latch lever 52 is provided with a holding portion shaped like a shape, and the running latch lever 52 can swing freely within this long groove as shown by solid lines and chain lines in FIG. When engaged, the lever guide 51 swings together with the lever guide 51.

A U-shaped groove 53 is provided on the upper surface of the operation box 49 to guide a running latch lever 52 formed in a U-shape by two straight grooves and a connecting groove connecting one end of the groove.

On the other hand, an arc-shaped arm 54 is pivotally attached to the lever guide 5.1, and a wire 55 is attached to the other end of the arm 54.

As shown in FIG.
After passing through the inside of the leg part 13, it is guided to the outside of the leg part 13 through a long hole bored in the front side plate of the leg part 13 at the same position and opposite to the long hole 56, and runs as described above. The rotation of the engine 20 is transmitted to the input shaft 25 by rotating the latch lever 52 connected to the latch 28 and running to the chain line position in FIG. 5, and by rotating it to the solid line position, the input shaft 25 is being made to stop.

Further, below the running latch lever shaft 50, a forward/reverse switching shaft 57 is mounted perpendicular thereto, and this has a switching arm 58 formed in a dogleg shape when viewed from the side as shown in FIG. is attached to the shaft.

This switching arm 58 has a latch lever 52 running on the head.
While the running latch lever 52 is rotated along the straight groove of the U-shaped groove 53, this engagement is released and the running latch lever 52 is moved along the solid line in FIG. It is adapted to engage with this when it is rotated to this position.

Furthermore, when the latch lever 52 running in this locked position is rotated between the solid line and the chain line in FIG.

A 1-shaped lever 59 formed in a cross-shaped shape in plan view is attached to one end of this forward/reverse switching shaft 57, while a support shaft 60 attached to the rear side plate 9a of the frame 9 is A character 1 arm 61 is provided for play, and these character 1 levers 5
9 and the 1-shaped arm 61 are connecting rods 62 that can be expanded and contracted freely.
connected by.

Furthermore, a bushing 63 is attached to the elongated hole 56 of the leg portion 13, and a rotary rod 64 passing through the leg portion 13 is mounted on the bushing 63, and on the operation box 49 side, A swinging lever 66 connected to the curved arm 61 through the elongated hole 65 is pivoted, and a swinging arm 67 is pivoted to the other end.

The tip of this swing arm 67 and the thick arm 35 coaxial with the switching shifter 33 are connected to a connecting rod 68.
connected by.

With this configuration, the latch lever 5 that moves
2 along the connecting groove of the U-shaped groove 53 as shown by solid lines and chain lines in FIG.
7.59.62.61.66, 64°67.68,35
．． 34, the switching shifter 33 swings to switch the rotation of the drive shaft 30 between forward and reverse directions.

Specifically, side clutch levers 69 are provided at both ends of the lever guide 51 on the running latch lever shaft 50.
and a clutch arm 70 are loosely mounted together, and the side clutch lever 69 can rotate along a guide groove 71 parallel to the linear groove of the U-shaped groove 53.

A wire 72 attached to the tip of the clutch arm 70 is guided to the elongated hole 56 of the leg 13, passes through the leg 13, and is connected to the shifter shaft 73 of the clutch shifter 47. By simultaneously rotating one or both of the clutch levers 69,
Drive of either or both of the left and right traveling drive shafts 45 is connected and disconnected.

Further, a shift lever shaft 75 is attached to a shift lever shaft 74 which is mounted below and parallel to the forward/reverse switching shaft 57, and is mounted on a guide plate that protrudes rearward from the operation box 49. It is designed to selectively engage with any one of the three engaging grooves provided.

This gear lever 75 is connected to the rear side plate 9 of the frame 9.
It is connected to an L-shaped bar 76 which is pivotally attached to the shift lever shaft 74 via a connecting lever 77 which is pivotally attached to the other end of the speed change lever shaft 74 and a connecting door 8.

On the other hand, the long hole 56 of the leg portion 13 has the rotary rod 64
A rotary rod 9 is also pivotally supported adjacent to the rotary rod 9 through the leg portion 13, and a swing lever 80 pivotally attached to one end of the rotary rod 79 and the above-mentioned folded lever 76 are rotatably connected. has been done.

Further, a shifter arm 81 is pivotally attached to the other end of the rotating rod 79, and a U-shaped groove at the tip thereof is connected to the shifter 39.
is engaged with.

Then, by rotating the speed change lever 75, the speed change shifter 39 swings, and the speed change gear 38 slides, thereby performing a three-speed shift.

Further, a threshing clutch lever 82 is pivotally attached to the lower end of the operation box 49, and a wire 84 is attached to this via an arcuate clutch arm 83.

The wire 84 is led to the elongated hole 56 of the leg section 13, passes through the leg section, and then is connected to the threshing clutch 27. By rotating the threshing clutch lever 82, the threshing section 3 is opened. The rotation of each device is connected and disconnected.

In addition, although not shown, the operation box is provided with a reaping latch lever and a hydraulic lever, which are connected to the reaping latch and the valve of the hydraulic system by wires. It extends through the leg portion 13 at 56 .

In addition, 85 is a bagging device for bagging the threshed grains, 86
is a straw cutter that cuts the straw after threshing.

In the combine harvester 1 configured as described above, the operator first starts the engine 20 and uses the latch lever 52 to move the engine 20.
is installed on the forward side of the connecting groove of the U-shaped groove 53, and then rotated along the straight groove on the forward side, the running latch 2
8 tensions the belt and the input shaft 25 rotates, and the switching shifter 33 switches the switching clutch to the forward side, so that the drive wheel 1
6 rotates forward and the machine moves forward.

When switching the machine from forward to reverse, move the running latch lever 52 toward the front along the forward straight groove of the U-shaped groove 53, and the running latch 28 will loosen the belt and move the input shaft. 25 is decelerated or stopped.

When the latch lever 52 that continues to run is moved to the reverse side along the connecting groove and further rotated along the straight groove on the reverse side, the input shaft 25 that has been decelerated or stopped rotates and the switching shifter 33 is switched. Since the clutch is switched to the reverse side, the drive wheels 16 rotate in the opposite direction and the machine moves backward.

Furthermore, when turning the machine to the left, for example, when the left side clutch lever 69 is rotated, the left clutch gear 44 slides and disengages the internal gear of the gear 42. , the roller 14 running on the left side is decelerated and the machine base turns to the left.

Furthermore, when changing the traveling speed, when the speed change lever 75 is rotated to a desired speed position, the speed change gear 38 slides and the traveling speed is changed.

Also, by rotating the threshing clutch lever 82,
The rotation of the threshing input shaft 24 is connected/disconnected, and each device of the threshing section 3 rotates or stops.

As is clear from the above explanation, in the combine operating device according to the present invention, the rods and wires that connect the power transmission section that transmits the rotation of the engine to each part and the operating lever are connected between the rollers running on the left and right. By penetrating the space in the leg of the threshing frame, the power transmission part and the operating lever are connected in a straight line over a short distance without having to bypass the threshing frame, so there is no play in the connection part. The switching operation of the power transmission part is performed reliably with less twisting of the shaft, etc., and the dead space between the connecting rods and wires is used to make use of the dead space between the running rollers. There is no need to provide a special occupied area, and the structure of the machine base can be made extremely small and compact, and this effect is particularly great for small combine harvesters.

[Brief explanation of the drawing]

1 to 5 show the operating device for a combine harvester according to the present invention, FIG. 1 is a side view of the combine in which this is implemented, FIG. 2 is also a plan view, and FIG. 3 is also a rear view.
4 is a front view of the operating device shown in FIG. 2, partially cut away and viewed in the direction of arrow A, and FIG. 5 is a side view of the operating device shown in FIG. 2, also partially cut away.

Claims (1)

[Scope of utility model registration request] Legs integrally formed at the bottom of the threshing frame to become narrower in the width direction of the machine are supported by facing between the left and right running rollers, and power transmission devices for each part of the machine and these power transmission devices are connected. A combine harvester, characterized in that control levers to be operated are arranged in front and rear of the threshing frame, respectively, and rods and wires for connecting the power transmission device and the control lever are provided passing through the legs. operating device.