JPS5853946Y2 - Speed change operation device for reaper - Google Patents

Description

[Detailed description of the invention] The present invention allows a harvester such as a combine harvester to be adjusted to high or low speeds in a speed range suitable for driving on the road, and to be able to change high or low speeds in a speed range suitable for various tasks in the field. A main transmission is installed in the transmission system for the traveling section and the reaping section so that the transmission can be changed by switching, and a sub-transmission device is installed in the transmission system for only the traveling section. The present invention relates to a speed change operation device for a machine.

Conventional gear shift operating devices for reapers have separate operating levers for the main gear shift device and the auxiliary gear shift device, which makes it easy to operate in a gear shift range suitable for driving on the road, etc., and for various tasks in the field. Not only is it complicated to operate the lever to select the appropriate speed change range, but such complicated lever operations can easily lead to erroneous operations. When driving the reaping section, such as during inspection or oiling work, the operating lever of the auxiliary transmission is not operated to the neutral operating position.11 If the operating lever of the main transmission is operated and the aircraft moves unexpectedly. death,
There was an inconvenience that could easily lead to dangerous situations such as injury.

In view of the above-mentioned circumstances, the present invention uses a single lever to reliably, accurately, and easily perform operations in a shifting range suitable for driving on the road, etc., and in a shifting range suitable for various tasks in the field. Not only can this be done, but it also makes it possible to safely and reliably operate the reaping section when the traveling section is stopped, such as when inspecting the reaping section's drive or applying lubrication. It is.

That is, the present invention provides a main transmission system that is interposed in the transmission system for the traveling section and the reaping section, and a sub-transmission device that is interposed in the transmission system for only the traveling section and can be freely switched in height, so that they are orthogonal or almost orthogonal to each other. A single control lever is provided so as to be movable in two directions, and by moving this control lever in one direction, the sub-transmission is switched between high and low positions, and by moving the control lever in the other direction at each high and low operation position. By linking the main transmission so that it can be operated, a single operating lever can be used to shift gears in a gear range suitable for driving on the road, and in a gear range suitable for various tasks in the field. Both movements can be performed reliably, accurately, and easily by moving in two directions.

Moreover, the present invention is configured such that the sub-transmission neutral position is generally located between the height and low operation positions of the sub-transmission, and the main transmission can be operated at least in the forward direction at this sub-transmission neutral position. Of course, it is possible to stop the traveling section and drive only the reaping section when inspecting the drive of the reaping section or performing oil lubrication work, but in this case, be sure to move the single lever mentioned above and place the auxiliary transmission in the neutral position of the auxiliary transmission. Because the operation has to be performed once, when operating the reaping section independently when the machine is stopped, the danger of erroneous operation, unlike the conventional device mentioned above, can be reliably avoided. To a certain extent, the operating patterns have expanded, and it has become possible to always perform safe and reliable gear shifting operations.

Embodiments of the present invention will be described in detail below based on the drawings.

Fig. 1 shows a clipper-type reaping device 6 and a tree planted near the ground in front of the reaping device 6 at the front of a threshing device 5 mounted on the machine frame, which is equipped with a pair of left and right crawler traveling devices 4, 4. A lifting device 7 that engages with the base of the husk to pull it rearward and upward and conveys it, and a vertical conveyance device that conveys and supplies the husk that has been cut in an upright position to the feed chain 8 of the threshing device 5. A reaping section 10 consisting of 9 is provided, and
A combine harvester according to the present invention is provided with a straw cutter 11 for cutting the straw that is clamped and conveyed by the feed chain 8 into pieces in the culm length direction on the lateral outer side of the waste straw 5a of the threshing device 5. The gear shift operation device is shown in Figures 2 to 4.
It is configured as shown in the figure.

That is, from the engine E mounted on the fuselage frame to the driving mission M that controls the drive of the pair of left and right crawler traveling devices 4, 4, and the transmission system to the reaping section 10, the engine E is connected steplessly in the forward and reverse directions. The switchable main transmission 1 and the auxiliary transmission 2, which can be freely switched in height and which is interposed in the transmission system to the driving mission M, are arranged perpendicularly or approximately to each other along the H-shaped operation guide groove 12A of the operation guide plate 12. One operating lever 3 is provided to be movable in two orthogonal directions, and by moving this operating lever 3 in one direction, the sub-shift lever 3A provided on the lever 3 slides in the longitudinal direction of the shift fork shaft 13. The sub-transmission device 2 is switched between high and low (H, L) via a shift fork 14 etc. that can be moved and held in position.
And, by moving in the other direction at the high speed operating position (H, L), the main transmission 1 is interlocked to be switched to the forward direction F and the reverse direction R via the shift lever 15, wire 16, etc. A sub-shift neutral position N is provided in the operation guide groove 12A of the operation guide plate 12 between the height operation positions (H, L) of the sub-transmission 2, and the main transmission 1 is moved forward at this sub-shift neutral position N. It constitutes an operating groove portion 12a that can be operated in direction F.

FIG. 5 shows another embodiment, in which one end of a substantially L-shaped swinging clutch arm 18 interlocked with the reaping latch 20 of the reaping section 10 via an operating wire 17 etc. is connected to the sub-transmission device. The lever is placed in a protruding position in the lever movement path between the high-speed operating position H and the sub-shift neutral position N of 2, and the swinging classic arm 18 of 2 is stabilized in the reaping latch engaged position and the cut position through the spring 19, respectively. When the operating lever 3 is operated from the sub-shift neutral position N of the sub-transmission device 2 to the high-speed operating position H by the holding lever, the reaping latch 20 is moved from the clutch engaged state to the disengaged state via the swing clutch arm 1B. It is configured to automatically switch to

[Brief explanation of drawings]

The drawings illustrate an embodiment of the speed change operation device for a reaper according to the present invention, and FIG. 1 is an overall side view of the combine, FIG. 2 is a transmission system diagram, and FIG. 3 is an operation system diagram of the main parts. FIG. 4 is an enlarged partially cutaway plan view of the main part, and FIG. 5 is an enlarged partially cutaway plan view of the main part showing another embodiment. 1...Main transmission, 2...Sub-transmission, 3...Operation lever.

Claims (1)

[Scope of utility model registration request] The main transmission 1 installed in the transmission system for the traveling section and the reaping section, and the auxiliary transmission 2 installed in the transmission system for only the traveling section and capable of freely switching heights, are arranged in two directions orthogonal or almost orthogonal to each other. With respect to one operating lever 3 that is movably provided, by moving the operating lever 3 in one direction, the auxiliary transmission 2 is switched to high and low positions, and by moving the operating lever 3 in the other direction at each of the high and low operating positions, the main transmission is switched. This is a speed change operating device for a reaper in which a speed change device 1 is interlocked to be operated, and a sub speed change neutral position is provided at an intermediate portion between the height and low operation positions of the sub speed change device 2, and the main speed change operation is performed in this sub speed neutral position. A speed change operation device for a reaper, characterized in that the speed change device 1 is configured to be operable at least in the forward direction.