JP2001346435A - Transmission device of open type grain tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem in which smoothness of clutch operation becomes insufficient, because operation load becomes large in a constitution in which both of lock and release operation of a lock mechanism of grain tank and clutch operation in transmission mechanism to discharge helical shaft are carried out by operation of one lock lever. SOLUTION: In a transmission mechanism of an open type grain tank 3 loaded on a vehicle body 2 of a combine harvester 1 so as to solve the above problem, a clutch 5 for transmitting power to a discharge helical shaft 4 is constituted so as to be disconnected and connected in relation to operation of a lock lever 6 and a driving claw 8 of the clutch 5 is stretchably pressurized on the side of a claw 10 to be moved by a compressed spring 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission for an open-type Glen tank and belongs to the technical field of agricultural machinery.

[0002]

2. Description of the Related Art Conventionally, a combine has a structure in which a threshing device for threshing grain stalks cut by a pre-cutting device and a Glen tank for storing and storing threshed grains are mounted on a traveling vehicle body. . For this reason, it has been strongly demanded that the combine be very difficult to inspect and repair the transmission device disposed between the Glen tank and the threshing device and to easily maintain the transmission device.

[0003] In order to facilitate the above-mentioned maintenance and increase the efficiency of the maintenance, the combine has a structure in which the Glen tank is turned outward from the traveling vehicle body (hereinafter, referred to as a "combine").
"Glentank open" has been adopted and put into practical use.

[0004]

Conventionally, the structure of a Glen tank open is an intermittent type in which a connection mechanism is repeatedly connected and disconnected with each rotation of the open in a transmission mechanism to a discharge spiral shaft mounted on the bottom of the Glen tank. It has a configuration (clutch), and its engagement / disengagement operation is required. On the other hand, the Glen Tank requires a lock mechanism to lock and unlock the traveling vehicle body in a fixed position, and has commercialized a device that performs both operations with a single lock lever. There was a problem that lacked smoothness.

[0005]

SUMMARY OF THE INVENTION The present invention takes the following technical means in order to solve the above-mentioned problems. First, according to the first aspect of the present invention, in an open type Glen tank 3 mounted on a vehicle body 2 of a combine 1, a clutch 5 for transmitting power to a discharge spiral shaft 4 of the Glen tank 3 is connected to the Glen tank 3. The clutch 5 includes a driving claw 8 that slides along a driving shaft 7 and a compression spring 9.
As a result, the transmission device of the open-type Glen tank is constructed by tensioning the driven claw 10 side.

According to a second aspect of the present invention, there is provided an operating member 11 which is operated by being pressed from the input shaft portion 4a side of the discharge spiral shaft 4 when the Glen tank 3 is opened and rotated. The transmission of the open Glen tank according to claim 1, wherein the transmission is connected to the lock lever 6 so that the lever 6 can be operated in conjunction with the lock lever.

[0007]

According to the present invention having the above-described structure, the operation of the lock mechanism of the Glen tank and the operation of the clutch for interrupting the power to the discharge spiral shaft are performed by one lock lever. Nevertheless, the invention of claim 1 is
The movement of the driving claw to the driven claw side is assisted by the compression spring, and there is a feature that the operation load of the lock lever can be reduced by smoothly sliding with little unevenness due to the sliding.

[0008] The invention according to claim 2 is a lock lever.
Are interlocked by the operation of the open rotation of the Glen tank side, so that there is an advantage that the operation load is remarkably reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a combine 1 is mounted on a vehicle body 2 having a crawler 12 as shown in FIG.
3 is mounted, and the Glen tank 3 is mounted on the side thereof, and a mowing pretreatment device 14 is connected to the front.

Although not shown in the drawing, the grain tank 3 is used to remove the grain after threshing and sorting from the threshing device 13 through a first-floating cylinder equipped with a helix spiral. And store it. And Glen Tank 3
As shown in FIG. 6 and FIG.
And one end of the discharge spiral shaft 4 (on the lower side of the conveyance) is connected to the lower end of a frying spiral 16 provided inside a fryer cylinder 15 standing upright at the rear of the vehicle body 2 via a pair of bevel gears. It is constructed so as to be able to transmit. And the frying cylinder 15 is shown in FIG.
As shown in (1), a grain discharge auger 17 is connected to and provided at the upper portion so that the grains in the Glen tank 3 can be carried out (extended) to a predetermined position outside the machine.

In the case of the embodiment, the grain discharging auger 17 can set at least three unloading (overhanging) positions by a dial provided on the operation panel of the cockpit 18, although not specifically shown. It has a configuration. Therefore,
Since the grain discharging auger 17 according to the configuration of the embodiment automatically moves to the unloading position by setting the dial, there is an advantage that the manual operation time for moving to the unloading position can be significantly reduced.

As shown in FIG. 7, the Glen tank 3 is provided with a rotation fulcrum P at a position close to the hulling cylinder 15 so as to be able to rotate to the outside of the vehicle body 2 (this structure is referred to as a “Glen tank tank”). "Pun".) In this case, the Glen tank 3 is, as shown in FIG.
Can be rotated from the position indicated by the solid line to the position indicated by the imaginary line with the center as a center, so that a work space capable of performing maintenance with the adjacent threshing device 13 can be created.

Although not specifically shown in the drawing, the discharge spiral shaft 4 is located near the pivot fulcrum P in the vicinity of the joint A.
6 (see FIG. 6), it is connected to the above-mentioned bevel gear side (frying spiral 16 side) so as to be freely bendable, and the opposite input side is extended from the Glen tank 3 to the outside to constitute an input shaft portion 4a.

On the other hand, as shown in FIG. 7, the drive shaft 7 is configured to transmit the rotational power reaching the gear box 21 from the engine 19 via the tension belt 20 to the input shaft portion 4a via the clutch 5. ing. Next, as shown in FIGS. 1 to 5, the clutch 5 is provided with a driven claw 10 fixedly provided at one end of the input shaft portion 4a, and is provided at an end of the other drive shaft 7 in the axial direction. A slidable driving claw 8 is provided so that both pawls 8 and 10 can be freely engaged and disengaged. As shown in FIGS. 1 to 5, the clutch 5 has a U-shaped bearing device 22 (FIG. 4, FIG. 4) in which the end of the input shaft portion 4a on the one discharge spiral shaft 4 side is opened outward. (See FIG. 5). The other drive shaft 7 is supported by a bearing device 23 in a fixed state at a fixed position by a bearing device 23.
It is configured to be located between both bearing devices 22 and 23.

Next, as shown in FIGS. 3 and 5, on the open side of the above-mentioned U-shaped bearing device 22, a lock member 25 having a lower portion pivoted upward is extended upward, as shown in FIGS. And a lever portion 26 is connected to the opening to close (see FIG. 3) or open (see FIG. 10) the U-shaped opening. As shown in FIG. 3, the lock member 25 is configured to be locked by a locking rod 27 provided with a tension spring at a base portion so that the locked state can be maintained.

As described above, the lock lever 6 connects the input shaft 4a, which is an extension of the discharge spiral shaft 4, with the bearing device 22.
, The integrated Glen tank 3 can be locked to the vehicle body 2 at the same time. Next, a related configuration between the lock lever 6 and the clutch 5 (in other words, an interlocking configuration between the lock lever 5 and the driving claw 8) will be described.

First, the pivot 28 is shown in FIGS.
As shown in FIG. 1, a vertical bearing is provided behind the driving claw 8, and the interlocking rod 29 is fixed to one side and the operation rod 30 is fixed to the other side while maintaining an angle slightly larger than 90 degrees in plan view of FIG. It is composed. As shown in FIG. 5, the interlocking rod 29 is connected to an operation lot 31 having an end connected to the lock member 25. As shown in FIG. Is connected to a shifter 33 operably engaged with the shifter 33.

As described above, when the drive pawl 8 constituting the clutch 5 is operated to release the lock lever 6, the lock member 25, the operation rod 31, the interlocking rod 29, the rotation fulcrum shaft 28, the operation rod 30 , The shaft is operated in the axial direction while resisting the compression spring 9 via the shifter 33 and the engagement groove 32, and slides to the disengagement side from the driven claw 10 so that the clutch is disengaged. Note that the compression spring 9 is
To the driven claw 10 side. And operation lot 3
As shown in FIG. 3, FIG. 5, and FIG. 10, when the lock member 25 is unlocked (see FIG. 3, FIG. 5, and FIG. (See FIG. 10), the structure is such that the position can be ensured by rotating to a position beyond the fulcrum. As described above, if the operation lot 31 is configured such that the pivot position with the lock member 25 is beyond the fulcrum (the rotation fulcrum of the lock member 25), another holding device is not required at the time of unlocking. The tension of the compression spring 9 that tensions the driving claw 8 works through a series of interlocking mechanisms to secure the open position, and to reliably prevent return when the Glen tank 3 is in the open state.

As shown in FIG. 9, the operation lot 31 is provided with a spring portion 34 as a safety mechanism at an intermediate portion and a slot 35 (see FIG. 10) at the end to lock. When the connection portion is connected to the member 25, each connection portion can be safely protected by the buffer function of the spring portion.

The lock member 25 is, as shown in the embodiment shown in FIG. 4, a semi-circular actuating member 11 provided on the lower outer periphery of the input shaft portion 4a of the discharge spiral shaft 4 and a pivot shaft of the base. 37
If it is constituted integrally through the opening, the pressing force from the Glen tank 3 side is transmitted during the open rotation, so that it can be operated to the lock side or the lock release side. With such a configuration, the lock lever 6 is used to open the Glen tank 3.
The operation force is conversely transmitted by the open operation to release the lock,
Alternatively, it can be locked.

In the embodiment shown in FIG. 11, the driving claw 8 is formed with a spline shaft 7a only at the tip end of the driving shaft 7, and is formed into a shape without a spline when it is removed. When the clutch slides rearward and reaches the position where the clutch is disengaged, a free state in which rotational power is not transmitted is established. For this reason, the transmission of the clutch 5 is, of course, properly stopped, but the driving claw 8 itself is stopped, so that there is an advantage that the clutch 5 is extremely safe and is advantageous in terms of wear measures.

Further, by adopting the above configuration, when the driving claw 8 is slid rearward and reaches the clutch disengagement position, the driving claw 8 is free to rotate in the free state as described above, and accompanying the Glentank open. When the moving driven claw 10 comes into contact, the driven claw 10 rotates freely in the direction of the received pressing force and escapes without any obstacle.

The driving claw 8 and the driven claw 10 are shown in FIG.
In the case of the embodiment shown in FIG.
The inclined surfaces 8b and 10b are formed on the back sides of the a and the a. With this configuration, the driving claw 8 and the driven claw 10 are
The drive claw 8 is slid in the clutch engagement direction, and the two claws 8, 1
Even if the top ends approach each other, the inclined surfaces 8b, 10
b can smoothly slide and engage with the smooth.

Therefore, the driving claw 8 and the driven claw 1 of the embodiment are
No. 0 is characterized in that the tips of the claws can be prevented from striking each other in a collision state as in the prior art, can be engaged while slipping smoothly, can be engaged, and are hardly damaged. Next, the operation will be described.

First, when the body 2 is advanced while driving the rotating parts of the machine body to start the cutting and threshing work, the culm in the field is cut by the pre-cutting device 14 and supplied to the threshing device 13 for threshing. You. In this way, when the threshing operation is performed, the grain treated in the threshing operation is stored in the Glen tank 3 to reach a certain amount, and an alarm is issued by the detection of a full sensor provided inside the tank. ,
Move to grain discharge work.

First, the vehicle body 2 is moved to the ridge and approached to the truck waiting on the farm road, and the tip of the grain discharge auger 17 is exposed to the tank of the truck, and the grain is discharged. Get ready for work. Then, when the operator operates the discharge clutch, the discharge spiral shaft 4 is transmitted from the engine 19 via the tension belt 20, the gear box 21, the drive shaft 7, and the clutch 5 to start the work of discharging the kernel. Is done.

In this manner, the grains stored in the Glen tank 3 are passed from the discharge spiral shaft 4 to the fry spiral 16 in the fry cylinder 15 and further passed through the grain discharge auger 17. It is transported and carried out to the tank of the truck described above. Next, a description will be given of an operation of opening the Glen tank in order to perform maintenance between the threshing device 13 and the Glen tank 3. First, an operation of releasing the lock lever 6 is performed.

As an operation procedure, the lock member 25 is rotated upward with the locking rod 27 against the tension spring to release the lock, and the lock lever 6 is rotated outward with the lower portion as a fulcrum. Then, the bearing device 22 is opened. At that time, the pivot 2
8, the operation lot 31 is pulled forward by the rotation of the lock member 25, and the interlocking rod 29 is interlocked to rotate in the direction of the arrow shown in FIG. 5 to operate the operation rod 30 to the right. Then, the drive claw 8 is disengaged from the driven claw 10 by the shifter 33 at the tip of the operating rod 30 engaging the engagement groove 32 and sliding in the axial direction while opposing the compression spring 9. 5 is cut off.

As described above, when the input shaft portion 4a is released and the clutch 5 is simultaneously disengaged and disengaged, the operator pulls out the rotation fulcrum P of the Glen tank 3 outwardly of the vehicle body 2. Rotate to the center to open a Glentank. As described above, the Glen tank 3 is rotated to the outer position of the vehicle body 2 as shown by the phantom line in FIG. 7 to form a space on the side of the threshing device 13 and is disposed in that part. The maintenance of the gearing can be easily performed.

When the Glen tank 3 is turned in the opposite direction to the open operation, the Glen tank 3 returns to the normal mounting position, and the lock lever 3
By performing the lock operation of No. 5, the original fixed state is restored. At this time, the clutch 5 operates in the reverse order of release in the order of the operation lot 31, the interlocking rod 29, the rotation fulcrum shaft 28, the operation rod 30, and the shifter 33 to move the driving claw 8 of the driving shaft 7 in the axial direction. It slides and engages with the driven claw 10 of the input shaft portion 4a on the Glen tank 3 side to return to a state where transmission is possible.

As described above, according to the present invention, when the lock lever 6 of the Glen tank 3 is operated, the driving claw 8 is tensioned toward the driven claw 10 by the compression spring 9, so that the operation load can be significantly reduced. Have.

[Brief description of the drawings]

FIG. 1 is an embodiment of the present invention and is a plan view partially showing a main part in section.

FIG. 2 is a front view of an embodiment of the present invention, showing a main part in a partial cross section.

FIG. 3 is a left side view showing an example of the present invention, in which a main portion is partially sectioned.

FIG. 4 is a right side view illustrating an operation of the embodiment of the present invention.

FIG. 5 is a perspective view of an embodiment of the present invention, in which a part of a main part is cut away.

FIG. 6 is a side view of a Glen tank shown in a diagram in the embodiment of the present invention.

FIG. 7 is a plan view showing an operation of the embodiment of the present invention.

FIG. 8 is a side view of the combine according to the embodiment of the present invention.

FIG. 9 is a partial plan view of the embodiment of the present invention.

FIG. 10 is a left side view showing an embodiment of the present invention and showing a partial cross section in an open state.

FIG. 11 is a cross-sectional front view of the embodiment of the present invention.

FIG. 12 is a cross-sectional front view of the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Combine 2 Vehicle body 3 Glen tank 4 Discharge spiral shaft 4a Input shaft part 5 Clutch 6 Lock lever 7 Drive shaft 8 Drive pawl 9 Compression spring 10 Follower pawl 11 Operating member.

Claims (2)

[Claims] 1. An auto mounted on a vehicle body 2 of a combine 1
In the open-type Glen tank 3, a clutch 5 for transmitting power to the discharge spiral shaft 4 of the Glen tank 3 is configured to be disengaged and continued in relation to the operation of the lock lever 6 of the Glen tank 3. Is a transmission device for an open-type Glen tank in which a driving claw 8 sliding along a driving shaft 7 is tensioned toward a driven claw 10 by a compression spring 9. 2. An operating member 11 which is operated by being pressed from the input shaft portion 4a side of the discharge spiral shaft 4 when the Glen tank 3 is opened and rotated, the operating member 11 being a lock lever 6
2. The transmission of an open Glen tank according to claim 1, wherein said lever 6 is connected to said transmission so that said lever 6 can be operated in an interlocked manner.