JPS5928910Y2 - Combine travel control device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a traveling operation device for operating a traveling section of a combine harvester from an operating section via a transmission in a traveling gear box.

The self-propelled combine harvester is equipped with a reaping section that harvests and transports the shell culm in the field, and a threshing section that threshes and sorts the transported shell culm.
These are mounted on a running section consisting of a pair of left and right rollers.

This traveling part differs depending on the model, but usually the forward 3
It is designed to be able to shift to 6 speeds, 2 reverse speeds, and 2 speeds, and this speed change is achieved by switching between the speed change gear in the traveling gearbox or the forward/backward speed by operating a lever on the operating section provided on the side casing or rear of the threshing section. This is done by switching gears.

The input shaft of this traveling gearbox is connected by a belt to the engine mounted on the machine base, and the drive wheel of the running roller is pivotally attached to the output shaft of the housing.

Therefore, the running gearbox is provided above the front end of the running roller close to the engine and the drive side of the running section, and a considerable distance is required between it and the operating section.

In particular, in walk-behind combine harvesters, the operating unit is located at the rear of the machine, making it difficult to connect because it is far away from the traveling gearbox, and the vibrations of the machine make it difficult to shift gears smoothly. There were times when it wasn't.

The present invention has been developed in view of the above points.The frame of the threshing section is supported by the traveling frame of the traveling section, and the rond connecting the operation section side of the traveling transmission and the traveling gear box side is connected to the threshing section. The present invention provides a combine Q travel operating device which is pivotally supported on the front and rear side plates of the frame to ensure transmission of motion, prevent modulation of speed change operation due to vibration of the machine base, and simplify assembly work. be.

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

This embodiment shows an example in which the present invention is applied to a small walk-behind combine harvester. Fig. 1 is a side view of the combine harvester in which the invention is implemented, Fig. 2 is a rear view of the combine harvester, and Fig. 3 is a load throwing device. FIG. 2 is a partially cutaway side view.

As shown in these figures, the combine 1 consists of a reaping section 2, a threshing section 3, and a running section 4, and the reaping section 2 is further connected to a cutting body 5 that scrapes through the husks of the field, and behind it is a mowing section 5 that is used for lodging. a pulling device 6 for erecting the culm, a clipper-shaped cutting blade 8 provided close to the ground at the rear of the culm 1 supporting the culm 5, and a clipper-like cutting blade 8 for cutting the base of the culm; The husk culm conveying device 9 transports the removed husk culm to the threshing section 3, and the like.

The frame 10 of the enclosed threshing section 3 accommodates a sorting device consisting of a handling chamber 12 that houses a handling barrel 11, a winnowing machine 13, etc., and extends in the width direction of the machine from the downward force of the handling chamber 12. The sorting chamber 14 forms a roughly rectangular shape when viewed from the side.
The leg portion 10a is fixed to the traveling frame 15 of the traveling section 40 to be supported.

Then, on the side of the handling chamber 12, a feed chain 17 that clamps and transfers the culm together with a clamping rod 16 is installed in the handling chamber 12.
2, and on the side of the reaping section 2 of the housing frame 10, there is a handling chamber 1 that is approximately triangular in plan view.
An artificial funnel 18 is provided that protrudes toward the reaping section 2 from the handling chamber 12 at approximately the center of the height of the frame 10 to catch the scattered grains from the grains (2) and the grains shed from the shell culms during transportation. ing.

The running section 4 on which the threshing section 3 is mounted consists of a pair of left and right running rollers 19 parallel to each other in the width direction of the machine. It is composed of a plurality of running wheels 21 that are pivotally attached to a frame 15 and an endless crawler belt 22 that is stretched between a driving wheel 20 and a running wheel 21.

Then, the running frame 15 on the left side when facing the machine advancing direction
A traveling gear box 23 is attached to the front end, which is formed into a square shape and is divided into a main body and a lid body.
Figure 3 shows the inside of the main body, with the lid remaining.

A reaping drive shaft 24, a drive shaft 25, a speed change gear shaft 26, a speed change shaft 27, a clutch shaft 28, and a pair of travel drive shafts 29 connected in the axial direction are arranged in parallel to this traveling gear box 23 in order from the upper blade a. An input shaft 30 is supported perpendicularly to the drive shaft 25 in the housing.

An input pulley 31 connected by a belt to an engine (not shown) mounted between the reaping section 2 and the threshing section 3 is attached to the outer end of the input shaft 30.
A bevel gear 32 is pivotally attached to the inner end of the shaft.

Furthermore, a pair of bevel gears 33 that mesh with the bevel gear 32 are mounted on the drive shaft 25 with their tooth surfaces facing each other, and a clutch surface is formed on each of the opposing surfaces.

A switching clutch (not shown) is fitted on the drive shaft 25 between both bevel gears 33 in a slidable and unrotatable manner, and by rotating the shifter 34 together with the shifter shaft 35, It slides and selectively engages with either of the clutch surfaces of both bevel gears 33 to transmit the rotation of the input shaft 30 to the drive shaft 25 in the forward or reverse direction.

The 250 rotations of the drive shaft are transmitted to the speed change gear shaft 26 by the meshing of the gears 36 and 37.

Furthermore, a speed change gear 38 integrally formed with three dog, medium, and small gears is fitted to this speed change gear shaft 26 in a slidable but non-rotatable manner. By sliding the shifter shaft 40 on the shifter shaft 40, the shift shaft 2
It is configured to selectively mesh with three dog, medium, and small gears 41 (two not shown) on top of the gear 7 to shift the speed change shaft 27 into three gears.

The rotation of the speed change shaft 27 is transmitted to the clutch shaft 28 through the meshing of the gears 42 and 43.

Further, the clutch shaft 28 includes a pair of clutch gears 44.
is freely slidably mounted, and the shifter 45 is connected to the shifter shaft 4.
Both clutch gears 4 are rotated together with 6.
One or both of the gears 4 mesh with the internal gear of the gear 43 at the same time to rotate one or both of the left and right travel drive shafts 29 simultaneously.

The drive wheels 20 of the running rollers 19 are respectively attached to both running drive shafts 29 .

Further, the reaping drive shaft 24 at the upper end of the traveling gear box 23 is connected to the drive shaft 25 by a chain, and is provided with a reaping latch (not shown), which can be operated by rotating the shifter 47 together with the shifter shaft 48. The reaping drive shaft 24 is made to stop rotating by connecting and disconnecting it.

The reaping drive shaft 24Fi and the reaping frame 49j in FIG.
, - and the transmission shaft provided through the transmission shaft tube 50 to drive each device of the reaping section 2.

On the other hand, at the rear of the frame 10 of the threshing section 3 and at the center in the machine width direction, an operating section is provided, which is generally designated by the reference numeral 51.

The operation box 52 of the operation section 51 is attached to the rear side plate 10b of the frame 10 in the threshing section 3, and a running latch lever shaft 53 is supported on the upper part of the operation box 52, and a threshing clutch is attached to the lower end of the box. A lever shaft 54 is supported.

A pair of side flange levers 56 and 57 each integrally constructed with a pair of left and right clutch arms 55 are mounted on the latch lever shaft 53 that runs.
It is connected to the shifter shaft 46 by a wire 58, and its rotation operates the rotation of the running roller 190.

A pair of threshing clutch levers 59 are mounted on the enclosed threshing clutch lever shaft 54, and are connected to the shifter shaft of the clutch of the threshing section 3 (not shown) via an arm 60, a wire 61, an arm 62, and a wire 63, respectively. The rotation of the threshing section 3 drives each device of the threshing section 3.

Above the threshing clutch lever 59 of the box octopus, a reaping latch lever 64 is swingably connected to and rotates a shifter that slides the reaping latch on the reaping drive shaft 24 by a wire (not shown). It is being

Furthermore, a running latch lever 65 is mounted on the running latch lever shaft 53 and is rotatable along a U-shaped groove provided on the upper surface of the operation box 52. The clutch arm 66 on the same axis is engaged, and the moving latch lever 65 is shown in the solid line position force in the third figure.
By rotating the input pulley 31 from the position indicated by the chain line, a running latch (not shown) is connected via the arm 67 and the wire 68, and the input pulley 31 is rotated.

A forward/reverse switching shaft 69 is mounted below the running latch lever shaft 53 and perpendicular thereto, and a running latch lever 65 having a U-shaped upper end is mounted on this shaft as shown in the solid line in the figure. A switching arm TO that engages only when located at the position shown by , that is, at the bent portion of the U-shaped groove, is pivoted.

Further, at the front end of the forward/reverse switching shaft 69, an L-shaped bar 7 is formed, the tip of which moves up and down as the shaft 69 rotates.
1 is fixed, and a tension Ron door 2 is attached to its tip.
is pivoted.

Furthermore, the front side plate 10c and the rear side plate 10b of the frame 10
A rotary rod 73 is rotatably supported on the shaft, and a swing lever T6 connected to the tension rod 12 by a rotatable one-shaped lever 74 and a connecting lever 75 is mounted on one end of the rotary rod 73. The drive shaft 2 is mounted on the other end of the housing.
A sliding lever 78 that slides the forward/reverse switching clutch on the top 5 via a swing arm 77 is pivotally mounted.

Furthermore, the frame 1 below the forward/reverse switching shaft 69
A shift lever shaft 79 is rotatably mounted in parallel with the shift lever shaft 79 near 0, and a shift lever 80 is mounted on one end of the shift lever shaft 79, and the shift lever 80 is pivoted on the other end. A protruding connection lever 81 is pivoted.

The connecting lever 81 connects the connecting rod 81 between the C-shaped lever 71 and the C-shaped lever 82 which is coaxially mounted.
It is connected by 3.

The front side plate 10c and the rear side plate 10b of the frame 10
In K, a rotary iron 84 penetrating through the frame 10 is rotatably supported, and the above-mentioned L-shaped lever 8 is attached to one end of the rotary iron 84.
2 and a swing lever 85 connected by a long hole, and a thick shaft 87 is attached to the other end by a camp ring 86.
are connected.

This sick shaft 87 is pivotally supported by the traveling gear box 23, and a shifter arm 88 is pivotally attached to the tip thereof to slide the shifter 39 for the speed change gear 38 by rotation of the rotary rod 84.

Among them, 89 is a steering wheel (S) for steering the aircraft.

The traveling operation of the combine harvester 10 configured as above will be explained.

First, when moving the machine forward, after starting the engine, move the latch lever 65 to the forward side of the U-shaped bent portion of the operation box 52, and then the switching arm 70, the forward/backward switching shaft 69, and the L-shaped The shifter 34 rotates through the lever T1, the tension rod T2. meshes with the bevel gear 33 on the forward side.

When the latch lever 65 that continues to run is rotated along the forward groove of the U-shaped groove at the chain line position tube in FIG. 3, the arm 61
, the latch running through the wire 68 is connected, the input pulley 31 rotates, and the drive shaft 25 rotates in the forward direction due to the meshing of the bevel gears 32 and 33.

Therefore, the speed change gear shaft 26, the speed change shaft 21, the clutch shaft 2
8, the left and right running drive shafts 29 rotate, the running rollers 19 rotate, and the machine moves forward.

When switching the machine base from forward power to reverse, move the running latch lever 65 along the U-shaped groove of the operation box 52. First, the running latch is cut and the latch lever 65 is moved along the U-shaped groove of the operation box 52. Then, the rotation of the drive shaft 25 is switched to the reverse side through the transmission path, and then the running launch is connected, so that the machine moves backward.

When turning the machine, by operating the turning direction 0 side clutch lever 56 or 57, the shifter shaft 46 is rotated via the clutch arm 55 and wire 58, and the clutch gear in the turning direction is rotated. 44 is turned -W and the travel drive shaft 29 stops, so the machine base turns.

Furthermore, when changing the running speed of the machine, by swinging the speed change lever 80 in a direction perpendicular to the paper surface of FIG.
．． 1-shaped lever 82, swing lever 85, rotating rod 84.
The shifter 39 slides via the shifter shaft 87 and the shifter arm 88, and the speed change gear 38 slides and meshes with the gear 41 etc., thereby switching the speed of the machine to three stages. , the member on the operating section 51 side of the transmission and the member on the traveling gear box 23 side are connected by a rotating rod 84, and this rotating rod 84 is connected to the robust threshing section frame 10 supported by the traveling section 4.
Since the machine is pivoted at two locations, the front side plate 10c and the rear side plate 10b, even if the pivot spacing is long and the operating section 51 is in a remote position, motion is reliably transmitted and vibrations of the machine are reduced. There is no modulation due to etc.

When assembling the housing, it is only necessary to assemble the steering section 51 side and the traveling gear box 23 side independently, respectively, and fit the end members to both ends of the rotating rod 84, respectively.
Its assembly is extremely easy and it can be used for positioning the threshing machine frame 10.

As is clear from the above description, according to the present invention, in a lever combine harvester, the threshing section is supported by the traveling frame of the framer traveling section, and the operating section side of the traveling transmission and the traveling gear box side are connected to the threshing section. are connected by a rod passing through the frame of the threshing section, and by configuring this rod to be pivotally supported by the front and rear side plates of the frame of the threshing section, the distance between the shaft supports of the rods is long < force, and both ends of the shafts are Since it is directly connected to the drive wheel of the operating section, the transmission of its motion is extremely reliable even if the operating section is located far from the drive side of the running section, and it is not affected by vibrations of the machine base, etc. There's nothing to do.

In addition, since the rod is protected by the threshing frame, it will not break or bend, and there will be no mud or other adhesion, improving durability.

Furthermore, this travel operating device is extremely easy to assemble, and this assembly can be effectively used for positioning the threshing section frame.

[Brief explanation of the drawing]

Figures 1 to 3 show a travel operating device for a combine harvester according to the present invention. Figure 1 is a side view of a combine in which this is implemented, Figure 2 is a rear view of the same, and Figure 3 is a rear view of the combine harvester. FIG. 3 is a partially cutaway side view. 1... Combine harvester, 3... Threshing section, 1
0...Frame, 10b...Rear side plate, 10c...Front side plate, 15...Traveling frame, 19...Roller for running , 20...
... Drive wheel, 23 ... Traveling gear box 51
......Operation unit, 84...Rotating rod.

Claims (1)

[Scope of utility model registration request] A threshing frame extending in the width direction of the machine and a traveling gear box located in front of the threshing frame and accommodating a transmission for the traveling rollers are fixed to and supported by the traveling frame of the traveling rollers. The operation member for operating the transmission in the operation section fixed to the side plate and the transmission operation member on the traveling gearbox are connected by a rond penetrating through the threshing frame, and both ends of this rond are connected to the A travel operating device for a combine harvester characterized by being pivotally supported on both side plates of a threshing frame.