JPS59159710A - Operation apparatus of combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operating device for connecting/disengaging clutches for traveling and working equipment and changing traveling speed in a combine harvester.

A combine harvester is equipped with a reaper that harvests the shell culm in the field and a threshing machine that threshes and sorts the harvested shell culm, and these are mounted on a running frame that connects left and right running rollers. When harvesting with a combine harvester like this, start the engine, operate the running latch lever to rotate the running rollers, then operate the gear shift lever to make the machine run at the desired speed. The reaping latch lever and threshing clutch lever are then operated to rotate the reaping machine and the threshing machine.

Also, when driving on the road, only the latch lever and gear shift lever are operated.

With a conventional combine harvester like Kono, in addition to the latch lever that runs during harvesting, three levers must be operated: a gear shift lever, a reaping latch lever, and a threshing clutch lever, and the reaper must be operated while the reaper is in the field. The operation is troublesome and requires skill, as the operator has to keep an eye on the front so as not to stray from the row of culms, and it is difficult to reap or thresh grains that may have been accidentally stepped on. There were times when a problem occurred where the data could not be read.

The present invention has been made in view of the above points, and is provided with another guide groove having the same function as the rotation operation guide groove of the driving gear shift lever, and the zero speed portion of both guide ports is replaced by the switching guide groove. At the same time, a switching mechanism is provided between the machine base near the switching guide groove and the gear shift lever, so that movement of the gear shift lever in and near the switching guide groove connects and disconnects the clutch of the work equipment. The present invention provides an operating device for a combine harvester that improves operability by making it possible to have a traveling speed change function and a work equipment clutch connection/disconnection function using a single speed change lever. be. Embodiments of the present invention will be described in detail below with reference to the drawings.

This embodiment shows an example in which the present invention is applied to a combine harvester equipped with a hydraulic continuously variable transmission as a traveling transmission. Fig. 1 is a plan view of the guide groove for the gear shift lever, and Fig. 2 is a plan view of the operating device. A perspective view, FIG. 3 is a cross-sectional view below the guide groove, and FIG. 4 is a cross-sectional view taken along line AA in FIG. 3. A hydraulic continuously variable transmission (not shown) is a conventionally known transmission in which a variable discharge pump and a constant displacement hydraulic motor are connected by hydraulic piping. The configuration is such that forward rotational speed change is performed by changing the rotational operation, and reverse rotational speed change is performed by changing the inclination angle by tilting the inclined plate from the neutral position in the opposite direction. In the figure, the reference numeral 1 indicates the above-mentioned shift lever, and the reference numeral 2 indicates the shift lever 1.
It shows a guide groove that guides the zero rotation. That is, the shift lever 1, which is supported by a spherical bearing and can be tilted in any direction, is engaged with a guide groove 2 provided on the operation panel 3, and the shift lever 1 is moved to the neutral position shown by one person in FIG. The machine is configured so that if it is left in place, the running speed becomes zero and the machine is stopped. In addition, KL rotates the gear shift lever 1 forward;
The traveling speed is increased, and when the shift lever 1 is positioned at the position indicated by the reference numeral 1B, the forward speed becomes the highest. Furthermore, when the gear shift lever 1 is rotated from the neutral position toward the rear, the hydraulic motor rotates in the opposite direction and the machine moves backward. Become the best.

On the side of such a guide groove 2, a guide groove 4 for shifting during work, which is formed to have the same length as the guide groove 2, is provided in parallel with the guide groove 2. Along the gear lever 1
It has the same function as the guide groove 2 in that the traveling speed is changed between the forward direction and the reverse direction by rotating the guide groove 2. The zero speed locations of both guide grooves 2 and 4, which are the locations where the gear shift lever 1 occupies the positions indicated by symbols IA and ID, are as follows:
They are connected by a switching guide groove 5, and the entire guide groove is formed in an H-shape. In FIG. 1, the maximum forward speed position of the gear change lever 1 on the side of the guide groove 4 is indicated by the symbol 1E, and the maximum reverse speed position thereof is indicated by the symbol 1F. Reference numeral 6 denotes a pair of spring members facing the switching guide groove 5 and opening when the gear shift lever 1 passes. This is to prevent movement to the other guide groove 4(2).

Between the gear shift lever 1 operated in this way and the machine base side near the switching guide groove 5, a clutch for transmitting rotation of the working machines such as a reaper and a threshing machine is connected and disconnected between a connecting position and a disconnecting position. A switching mechanism 7 is provided for switching. That is, below the operation panel 3, a threshing clutch switching plate 8 made of L-beam steel is located at a location surrounded by the guide groove 2°4.5, and is rotatably supported on the machine side. Also, on the side where the guide grooves 4 and 5 intersect, a reaping latch switching plate 9 made of L-shaped steel is rotatably supported on the machine side.

The pivot shaft axis of the clutch switching plate 8 is perpendicular to the switching guide groove 5, and the pivot shaft axis of the clutch switching plate 9 is parallel to the switching guide groove 5. On the other hand, the speed change lever 1 includes a threshing clutch pin 10 and a reaping latch pin 1 that are perpendicular to each other.
1 are provided in a protruding manner corresponding to each clutch switching plate 8, 9, and when the shift lever 1 is moved from the guide groove 2 side to the guide groove 4 side within the switching guide groove 5, the threshing clutch pin 10 is When the clutch switching plate 8 is rotated to the chain line position shown in FIGS. 3 and 4 and moved in the opposite direction within the switching guide groove 5, the threshing clutch pin 10 moves the clutch switching plate 8 as shown in FIGS. 3 and 4. It is configured to rotate to the solid line position. Furthermore, when the gear shift lever 1 is moved from the neutral position shown by reference numeral 1D in the figure to the forward side within the guide groove 4, the reaping latch pin 11 rotates the clutch switching plate 9 to the chain line position in FIG. 3 at the initial stage of movement. It is composed of Note that when the shift lever 1 is in the neutral position IDK6 and even when it is moved from this position to the reverse side, the clutch switching plate 9 is in the convergence position and does not rotate. The threshing clutch switching plate 8#'i is connected to the rotation transmission/disconnection clutch of the threshing machine (not shown) via the arc-shaped lever 12 and the wire 13, and the clutch switching plate 8 is connected to the third 4, the clutch is disengaged when K is in the solid line position, and the clutch is connected when it is in the chain line position. Further, the reaping clutch switching plate 9 is connected to a rotation transmission/disconnection clutch trap of a reaping machine (not shown) via an arcuate lever 14 and a wire 15, and the clutch switching plate 9 is at the solid line position in FIG. The clutch is sometimes disengaged, and when in the chain line position, the clutch is engaged. In addition, threshing,
Reaping Each clutch is connected multiple times to move levers 12 and 14 beyond the dead center.

The connection/disconnection is locked at the disconnection side position, so the clutch switching plates 8, 9 will not rotate unless an external force is applied. Further, the reaping clutch switching plate 9 is provided with a handle 16 for manually rotating the reaping clutch switching plate 9.

The operation of the operating device configured as above will be explained. When traveling on the road without threshing or reaping, the gear shift lever 1 is moved within the guide groove 2.

That is, when the engine is started and the speed change lever 1 is moved from the neutral position indicated by reference numeral 1 to the forward maximum speed position indicated by reference numeral IB along the guide groove 2, the forward speed is gradually increased. Further, when the vehicle is moved from the neutral position to the maximum reverse position 1C, the reverse speed is gradually increased.

When arriving at the field and performing harvesting work, first move the gear shift lever 1 to the neutral position IA on the guide groove 2 side to stop the machine, and then move the gear shift lever 1 along the switching guide groove 85 to the guide groove 4 side. When the threshing clutch pin 10 comes into contact with the threshing clutch plate 8 and rotates it from the solid line position to the chain line position in FIGS. is connected and the threshing machine rotates. Next, move the gear shift lever 1 to the neutral position 1D on the guide groove 4 side.
When the reaping latch pin 11 and the reaping clutch switching plate 9 are rotated in the forward direction from the neutral position ID, the reaping clutch switching plate 9 is engaged with the reaping clutch switching plate 9 at the neutral position ID. Rotate from the solid line position to the chain line position,
The reaping latch is connected via the lever 14 and the wire 15, and the reaping machine rotates. At the same time, the hydraulic motor begins to rotate and the machine base runs, and as the shift lever 1 is rotated in the forward direction, the traveling speed is increased, just as in the case of the guide groove 2. When the harvest work is finished,
By rotating the gear shift lever 1 in the reverse path of IE-ID-IA, the machine is stopped and both clutch switching plates 8.9 are rotated in the opposite direction.
Stop the thresher in order. During harvesting, when the gear shift lever 1 is rotated in the reverse direction for turning, etc., the reaping latch pin 11 rotates the clutch switching plate 9 when it passes the neutral position 1D, so the reaper stops, and After passing the neutral position 1D, the engagement between the clutch pin 11 and the clutch switching plate 9 is released, so that the reaper does not rotate during backward movement. At this time, the threshing machine is still rotating, but if you want to stop the threshing machine, move the gear shift lever 1 to the guide groove 2.
Just rotate it to the side. Furthermore, when only threshing is performed while the machine is stopped, which is called "pillow handling", if the gear shift lever 1 is moved to the neutral position 1D on the guide groove 4 side, the machine and the reaper will stop and only the threshing machine will be operated by the clutch. Since it rotates while connected, you can easily achieve your goals. In addition, when only the reaping machine is to be rotated while the machine is stopped, it is preferable to rotate the reaping latch switching plate 9 with the handle 16 while the gear change lever 1 is in the neutral position on the guide groove 2 side.

In this embodiment, the clutch pins 10 and 11 and the clutch switching plate 8.9 are used as the clutch switching mechanism provided between the gear shift lever 1 and the machine base, but the clutch on the work machine side is An electromagnetic clutch may be used, and a limit switch may be provided in the path of movement of the speed change lever 1, and the limit switch may be opened or closed by rotation of the speed change lever 1, thereby connecting or disconnecting the electromagnetic clutch. Furthermore, in this embodiment, a hydraulic continuously variable transmission is used as an example of a traveling transmission, but a gear type transmission may also be used.

As is clear from the above description, according to the present invention, in the operating device for a combine harvester, another guide groove 4 having the same function as the rotation operation guide groove 2 of the traveling gear shift lever 1 is provided, and both of these guide grooves are provided. The zero speed point of the groove 2.4 is connected with the switching guide groove 5, and a switching mechanism T is provided between the machine base side near the switching guide groove 5 and the gear shift lever 1, and the switching guide groove of the gear shift lever 1 is connected. 5, the clutch of the working machine is connected/disconnected when moving in or near the area, so that only one gear shift lever 1 can be used to operate the conventional gear shift lever and threshing clutch lever.
1. Since the function of a reaping latch lever can be provided, the structure is simplified, and the operation is easy and requires no skill, so the operability is significantly improved. Also, driving due to incorrect operation.

Unintentional stops and malfunctions of threshing and reaping can be prevented.

[BRIEF DESCRIPTION OF THE DRAWINGS] Figures 1 to 4 show an embodiment of the operating device for a power converter according to the present invention. is a perspective view of the operating device. Figure 3 is a cross-sectional view of the lower part of the guide groove, and Figure 4 is the AA of Figure 3.
FIG. 1... Gear shift lever, 2... Guide groove, 4...
Guide groove, 5...Switching guide groove, 7...Switching mechanism,
8... - Threshing clutch switching plate, 9... Reaping latch switching plate, 10, Φ... Threshing clutch pin, 11...
- Reaping latch pin. Patent applicant Masaki Yamakawa (one person) representing Iseki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] In a combine operating device configured to change traveling speed from zero to maximum speed by rotating a high-speed lever between two locations along a guide groove, a guide for shifting during work having the same function as the guide groove. A groove is provided separately from the guide groove, and the zero speed points of both guide grooves are connected by a switching guide groove. 1. An operating device for a combine harvester, comprising: a switching mechanism for switching a rotation transmitting/disengaging clutch of a working machine between a connected position and a disconnected position by movement of the speed change lever in the vicinity thereof.