JP3285491B2 - High-speed switching device in reaper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-speed switching device for a main shift lever in a harvesting and harvesting work machine for harvesting a culm by a vertically movable cutting portion provided on a traveling machine body.

[0002]

2. Description of the Related Art In general, there is known a harvesting / harvesting machine such as a combine, a binder, or the like for harvesting a culm in a field as the body travels, in which a mowing part is provided at a front portion of the traveling body so as to be movable up and down. ing. In such a mowing machine, the engine power for driving the traveling section, the mowing section, the threshing section, and the like is distributed from a single engine. The distribution of the engine power is about 30% for the traveling part during high-speed straight work.
However, if the aircraft is rotated as it is, the distribution to the running section will be reduced to about 80% due to the large ground resistance during the rotation, and the rotation of the engine will be slowed down. Therefore, the engine power to the threshing section etc. Down, and the sorting ability etc. decrease.

[0003] Therefore, when the aircraft rotates, the traveling speed is reduced to reduce the ground contact resistance, the power distribution to the traveling unit is reduced, and the aircraft is smoothly rotated without lowering the engine power of the threshing unit or the like. Conventionally, the operator has to determine the work state and operate the main transmission lever each time, so that manual lever operation is troublesome. Also the O of the reaping clutch lever
N. In some cases, the main shift lever is switched from high speed to low speed in conjunction with the OFF operation. However, in this case, the main shift lever cannot be set to the high speed position when the reaping clutch lever is turned on, so that the However, the harvesting operation could not be performed at high speed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and enables reaping and harvesting to be performed at a high speed during a straight-ahead operation, and a simple reaping and harvesting operation when the body rotates. Only by raising the section, the main shift lever can be automatically switched from the high-speed position to the low-speed position and smoothly run around. Another object of the present invention is to provide a high-speed switching device in a reaper that can move at high speed without switching the traveling speed to low speed.

[0005]

Means for Solving the Problems In order to solve the above-mentioned problems, the technical means adopted by the present invention is a reaping and harvesting work machine for reaping grain stalks by a vertically movable cutting unit provided on a traveling machine body. The mowing unit and the main transmission lever of the traveling machine are linked via interlocking means, and the interlocking means is connected to the cutting clutch.
The harvesting clutch is turned "ON" in conjunction with the operation of the chiller
By switching the main shift lever from the high speed position to the low speed position in conjunction with raising the mowing part only when
Even reaper clutch have been harvesting cutting at high speed as "ON", when times line of the fuselage, automatically switching from high speed to low speed only to the upper temperature of the reaper without manually operating the every time main shift lever Also, in a harvesting and harvesting work machine that cuts a culm with a vertically movable cutting unit provided in the traveling machine, the cutting unit and the main transmission lever of the traveling machine are linked via an interlocking wire, Attach the outer of the interlocking wire to the variable outer holder that is displaced in conjunction with the operation of the
N ", the main shift lever is switched from the high-speed position to the low-speed position in conjunction with raising the reaping section only at the time of the reaping and harvesting operation. The main transmission lever is not switched to the low-speed position even if is raised.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to an embodiment shown in the drawings. FIG. 4 is a side perspective view of a combine illustrated as an example of a mowing machine. A traveling machine body 3 is configured by assembling various devices on a machine body frame 2 supported by the traveling device 1. At the front of the traveling machine body 3, a cutting unit 4 for cutting the culm of the field and transporting it upward and rearward is mounted so as to be able to move up and down, and a threshing unit is mounted on one rear side thereof. The grain stalks cut by the cutting unit 4 are supplied to the threshing unit by a feed chain disposed between the cutting unit 4 and the feed chain. A driving operation unit 6 having a seat 5 and the like is installed on the rear side of the other side of the mowing unit 4, and an engine 7 and a transmission 8 are provided below the driving operation unit 6.
Transmission 8 by continuously changing the rotational drive power of the
(Hydraulic transmission) 9 for output to the side. Reference numeral 10 denotes a multi-steering lever for raising and lowering the reaping unit 4 and operating the side clutch.

FIGS. 1 to 3 show one side of the driving operation unit 6.
As shown in FIG. 2, a lever frame 11 is disposed in the front-rear direction. A main transmission lever 12 projects upward from the lever frame 11, and the power transmission to the mowing unit 4 is turned "ON" and "OFF" behind the main speed change lever. A reaping clutch lever 13 is provided. The main transmission lever 12 is configured to be swingable back and forth along the guide groove 14.

When the HST 9 is operated by the main transmission lever 12 and the auxiliary transmission gear of the transmission 8 is operated by the auxiliary transmission lever, the rotational drive power of the engine 7 is continuously variable and transmitted to the traveling device 1. At this time, the traveling speed of the traveling body 3 corresponds to the speed ratio of the HST 9, and the speed ratio of the HST 9 corresponds to the swing angle of the main transmission lever 12. That is, as the main transmission lever 12 swings forward from the neutral position 14a of the guide groove 14, the forward speed increases steplessly from the zero start to the maximum speed, and as the main swing lever 12 swings backward from the neutral position 14a. The reverse speed increases.

The interlocking mechanism between the main transmission lever 12 and the HST 9 will be described. The main transmission lever 12 has an end plate 15 fixed to the lower end thereof rotatable left and right on the upper end of a swing plate 17 via a fulcrum shaft 16. , And the swing plate 17 is provided with a bracket 19 projecting from a stay 18 on the body side.
Further, it is pivotally supported via a fulcrum shaft 20 so as to be able to swing back and forth. Reference numeral 21 denotes a spring which is stretched between the end plate 15 and the swing plate 17, and is biased by the spring 21 so that the main speed change lever 12 is tilted toward the operation section 6.

On the other hand, the trunnion shaft 2
2 protrudes, and a drive arm 2 that rotates integrally with the trunnion shaft 22 is provided on an upper end of an extension shaft 23 provided on the trunnion shaft 22.
4 is fixed, and a connecting pin 26 is fitted to the tip of the drive arm 24 via a bearing 25. The connecting pin 26 is universally connected to the lower end of the swinging plate 17 via an adjuster 27, a link ball 28, and the like. To rotate the HST
9 is activated.

The reaper 4 and the main transmission lever 12 are linked via interlocking means, and the main transmission lever 12 is switched from a high-speed position to a low-speed position in conjunction with raising the reaper 4. ing. That is, reference numeral 29 denotes a turning fulcrum of the cutting unit 4 which moves up and down. A transmission pipe 30 for transmitting power to the cutting unit 4 is supported by the turning fulcrum 29, and the power is transmitted when the cutting unit 4 is moved up and down. The pipe 30 rotates vertically about the rotation fulcrum 29 as an axis. On the other hand, the lever frame 11 is provided with a high-speed cut lever 31 for switching the main transmission lever 12 at the high speed position to the low speed position. The high-speed cutting lever 31 is pivotally attached to the lever frame 11 so as to be able to rotate back and forth, and its rear edge is brought into contact with the front surface of the main transmission lever 12 at the high-speed position from the front.

Reference numeral 32 denotes an interlocking wire as interlocking means for linking the mowing unit 4 and the main transmission lever 12. The interlocking wire 32 includes an inner wire 32a and an outer tube 32.
b, and one end of the inner wire 32a is connected to the base end side of the transmission pipe 30 via a mounting member 33,
The other end of the inner wire 32a is connected to the tip of the high-speed cutting lever 31, so that when the mowing unit 4 is raised, the transmission pipe 30 rotates upward and the interlocking wire 32 is connected to the high-speed cutting lever 31. Is rotated backward to switch the main transmission lever 12 at the high speed position to the low speed position.
Reference numeral 34 denotes an outer receiver for fixing an end of the outer tube 32b on the side of the transmission pipe 30.

The interlocking wire 3 as the interlocking means
By attaching the end of the outer tube 32b forming the second side of the high-speed cutting lever 31 to the variable outer receptacle 35 displaced in conjunction with the operation of the cutting clutch lever 13,
Only when the reaping clutch lever 13 is turned on,
The main transmission lever 12 is switched from a high speed position to a low speed position in conjunction with raising the mowing unit 4. That is, at a position below the reaping clutch lever 13, the outer link 36 is provided on the lower surface side of the lever frame 11.
7, the rear end of the outer link 36 is connected to the mowing clutch lever 13 via a connecting wire 38, and the outer end of the outer link 36 is connected to the front end of the outer link 36. A high-speed cut lever 35 end of the outer tube 32b is attached and fixed to the variable outer receiver 35. Therefore, by the "ON" operation of swinging the reaping clutch lever 13 forward,
The outer link 36 is pivoted rearward to change the outer
Is displaced rearward, and the "OFF" operation of swinging the reaping clutch lever 13 rearward causes the outer link 36 to move.
Is rotated forward, and the variable outer receiver 35 is displaced forward.

By adjusting and setting the interlocking wire 32 to a predetermined size, the cutting clutch lever 13 is turned "ON".
Only when the distance from the variable outer receptacle 35 displaced rearward to the high-speed cutting lever 31 increases, the interlocking wire 32 rotates the high-speed cutting lever 31 in conjunction with raising the mowing unit 4. When the main transmission lever 12 is switched from the high-speed position to the low-speed position, and the reaping clutch lever 13 is set to "OFF", the distance between the forwardly displaced variable outer receiver 35 and the high-speed cutting lever 31 is reduced. 4 when the inner wire 32a is raised.
Is loosened, so that the high-speed cutting lever 31 does not rotate.

With the above-described structure, when the cutting clutch lever 13 is turned "ON", the main shifting lever 12 can be set to the high-speed position to perform the high-speed harvesting operation. Then, when rotating the machine, the main gear lever 12 in the high-speed position is automatically switched to the low-speed position only by raising the mowing part 4 without manually operating the main gear lever 12 to smoothly operate the machine. Can be turned around.

Further, the cutting clutch lever 13 is turned "OFF".
When the main shift lever 12 is moved to the high speed position and the body is moved, the main shift lever 12 does not switch from the high speed position to the low speed position even when the reaper 4 is raised. can do.

[0017]

In summary, the present invention relates to a reaping and harvesting machine for cutting a culm by a vertically movable reaping section provided on a traveling machine body, wherein the reaper and the main transmission lever of the traveling machine body are interlocked through interlocking means. And the above interlocking means
The mowing clutch is set to "O"
Only when "N" is set, the main shift lever is switched from the high-speed position to the low-speed position in conjunction with raising the mowing part, and a mowing / harvesting machine for mowing the culm with the vertically movable mowing part provided on the traveling machine. In the above, the cutting unit and the main transmission lever of the traveling body are linked via an interlocking wire, and the outer of the interlocking wire is attached to a variable outer receptacle which is displaced in conjunction with the operation of the reaping clutch lever. The main transmission lever is switched from the high-speed position to the low-speed position in conjunction with raising the reaping part only during the harvesting operation when the "ON" is set to "ON". , And the harvesting and harvesting operation can be performed at a high speed. When rotating the machine, simply raise the mowing part without manually operating the main shift lever, and the main shift lever is automatically switched to the low speed position, so that the machine is smoothly rotated. be able to. Also set the reaping clutch lever to "OFF".
In the non-operation described above, the main shift lever is not switched to the low speed position even if the mowing part is raised, so that the main shift lever can be moved at a high speed while the high speed position is maintained.

[Brief description of the drawings]

FIG. 1 is a side view of a main part.

FIG. 2 is a plan view of a main part.

FIG. 3 is a front view of a main part.

FIG. 4 is a perspective side view of a main part of the combine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 Traveling body 4 Cutting part 12 Main transmission lever 13 Cutting clutch lever 32 Interlocking wire 35 Variable outer receptacle

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01D 69/00

Claims (2)

(57) [Claims] 1. A traveling harvesting machine reaper reaps culms in vertically movable in the cutting portion provided in the body and to coordinate through the interlocking means and a main shift lever of the traveling machine body and the reaper co
In addition, the above-mentioned interlocking means is interlocked with the operation of the reaping clutch lever.
A high-speed switching device in a harvesting and harvesting machine, wherein the main transmission lever is switched from a high-speed position to a low-speed position in conjunction with raising the mowing portion only when the mowing clutch is turned on . 2. A harvesting and harvesting machine for cutting a culm by a vertically movable cutting unit provided on a traveling machine body, wherein the cutting unit and a main transmission lever of the traveling machine body are linked via an interlocking wire. Attach the outer gear of the wire to the variable outer holder that is displaced in conjunction with the operation of the reaping clutch lever. A high-speed switching device in a reaper, which switches from a high-speed position to a low-speed position.