JPH04133028U - Clutch shaft locking member - Google Patents

Abstract

(57) [Summary] [Purpose] Easily replace the clutch disc by releasing the restriction on the axial movement of the clutch shaft without removing the locking member that restricts the axial movement of the clutch shaft. The purpose is to do something. When the stopper pin 2 is in the engaged position, the stopper pin 2 is engaged with the groove M of the clutch shaft K, and the movement of the clutch shaft K in the axial direction is restricted. Further, when the stopper pin 2 is in the disengaged position, the engagement with the groove M of the clutch shaft K is released,
The clutch shaft K can be moved in the axial direction, and the fixed portion 2c of the stopper pin 2 forms an abutment portion for the moving lever I used when the clutch shaft K is moved.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a power transmission device installed in, for example, an industrial vehicle such as a forklift. It is related to the clutch of the engine, and in detail, the power of the engine is shifted through the clutch disc. This relates to a locking member for a clutch shaft that transmits data to a machine.

0002

[Conventional technology]

Conventionally, as shown in Figure 6, the friction clutch of the power transmission device mounted on a forklift The latch device is housed in the clutch housing H and protrudes from the engine E. a flywheel F that rotates integrally with the crankshaft S; It protrudes from the rear of Uzing H (left side in the figure) and is the input in the transmission T. A clutch shaft K is spline-coupled to a gear (not shown) and a clutch shaft K is connected to a gear (not shown). A pressure plate P is connected to the front part of the shaft K by splines, and , is spline-coupled to the front part of the clutch shaft K, and is connected to the power of the flywheel F. It consists of a clutch disc D etc. that intermittently transmits the pressure to the pressure plate P. It is.

0003 A plurality of grooves M are formed at equal intervals on the outer periphery of the clutch shaft K. The shaft K is attached to the front cover attached to the rear inner wall of the clutch housing H. It is inserted into the bar 20. Therefore, at the top of the front cover 20, A hole 22 is provided through the locking hole 22, and a locking pin 23 is inserted through the locking hole 22. It engages with the groove M of the shaft K and restricts the movement of the clutch shaft K in the axial direction. ing. Also, the hook 21 shown in FIGS. 8 and 9 is removed from the front cover 20. There is a fixed type (Utility Model Application No. 54-32103).

0004 If the clutch device is repeatedly engaged and engaged, the clutch disc D may become damaged. Wear occurs. If the amount of wear exceeds a certain amount, engine E will start to Power is no longer transmitted to the transmission T, and the forklift becomes unable to travel. The hook 21 connects the clutch shaft K to the pressure plate P and the clutch. Used when removing from disk D. In other words, a certain amount of the clutch disc D When replacing worn clutch disc D with a new one, first check the clutch shaft Pull out the locking pin 23 that is engaged with the groove M of the clutch shaft K, and Lift restrictions on movement in the direction. Then, as shown in FIG. 7, the clutch shaft into the locking hole 22 transparently provided in the upper part of the front cover 20 through which the front cover 20 is inserted. A lever I for moving the clutch shaft formed from a metal rod or the like is attached to the clutch housing. Insert from above.

[0005] Next, move the tip of the clutch shaft moving lever I to the clutch shaft K. At the same time as being engaged with the groove M, it is attached to the front cover 20 shown in FIGS. 8 and 9. Hook it onto the fixed hook 21 and turn the lever I for moving the clutch shaft into the engine. Rotate to the gin E side. By rotating the clutch shaft moving lever I toward the engine E side, Therefore, the clutch shaft K moves to the transmission T side, and the clutch shaft K and the sprocket The clutch disc D and pressure plate P, which were connected by line, are pulled out from the switch shaft K. and connected to the flywheel F. Remove the clutch cover B located inside the flywheel F and clutch cover B. Remove the installed clutch disc D and replace it with a new clutch disc D. .

[0006] Also, when assembling after replacement, insert the new clutch into the flywheel F and clutch cover B. After setting the clutch disc D, clamp the clutch shaft moving lever I again. Insert the clutch shaft from above the housing H, and insert the tip of the clutch shaft moving lever I into the Engage with the groove M of the clutch shaft K. Then, the lever for moving the clutch shaft. Bring the bar I into contact with the engine E side of the hook 21 and rotate it toward the transmission T side. . By rotating the clutch shaft moving lever I toward the transmission, The clutch shaft K moves to the engine E side, and the clutch disc D and press The spline is connected to the shear plate P again and the clutch disc D can be replaced. be completed.

[0007]

[Problem that the idea aims to solve]

However, when replacing the worn clutch disc D mentioned above, the clutch The work to remove the locking pin 23 that restricts the axial movement of the shaft K is difficult. It had to be removed by hand or using a special tool into the clutch housing H. Therefore, there was a problem that work efficiency deteriorated.

[0008] This invention was devised to solve the above problem, and its purpose is to without removing the locking member that restricts the axial movement of the latch shaft. Releases the restriction on the axial movement of the clutch shaft to allow replacement of the clutch disc. An object of the present invention is to provide a clutch shaft locking member that can be easily locked.

[0009]

[Means to solve the problem]

In order to achieve the above object, the present invention engages with the groove of the clutch shaft, A clutch shaft locking member that restricts the axial movement of the clutch shaft. There it is, Can be moved to two positions: clutch shaft engaged position and clutch shaft disengaged position It is attached to the groove of the clutch shaft when in the engaged position. A fixed part that becomes the abutting part of the shaft moving lever when engaged and in the disengaged position. The gist is a locking member for a clutch shaft formed with a.

0010

[Effect]

Therefore, according to the present invention, when the locking member is in the engagement position, the locking member is It is engaged with the groove of the clutch shaft, and the movement of the clutch shaft in the axial direction is regulated. be controlled. Also, when the locking member is in the disengaged position, the groove in the clutch shaft When the engagement with the clutch shaft is released and the clutch shaft is able to move in the axial direction, and a movement used when the clutch shaft is moved by the fixed part of the locking member. A contact portion of the lever is formed.

[0011]

【Example】

An example in which the present invention is embodied in a forklift clutch device is shown below in Figures 1 to 5. The explanation will be based on. Note that the clutch device of this embodiment is different from the clutch used in the conventional technology. Flywheel F, clutch disc D, and pressure plate P of the clutch device etc., so in this example, for the sake of explanation, we will focus on the differences from the conventional clutch device. Only the following will be explained.

0012 As shown in Figure 1, the inner wall of the rear part of the clutch housing H (right side in the figure) has , a front cover 1 through which a clutch shaft K is inserted is mounted and fixed. Same fan The front cover 1 is formed into a substantially cylindrical shape, and has a locking member on its upper part that will be described later. A pin insertion hole 3 into which the fixing portion 2c of the stopper pin 2 is inserted is transparently provided. As shown in FIG. 5, the stopper pin 2 is formed by bending a metal rod into an L-shape when viewed from above. The base end 2a and the connecting part 2b are formed, and the connecting part 2b is further lowered at a right angle. The fixing portion 2c is formed by bending the base end portion 2a toward the base end portion 2a. It is set up. As shown in FIGS. 1 and 2, the base end 2a is approximately above the pin insertion hole 3. At this point, the front cover 1 and the clutch shaft are parallel to the clutch shaft K. It is inserted into a pin rotation center hole 4 provided transparently in the housing H. of the base end portion 2a. A nut 5 is screwed onto the connecting portion 2b side, and a nut 5 is screwed onto the rear end surface side of the base end portion 2a. 6 are screwed together.

[0013] That is, the front cover 1 and the clutch housing H are sandwiched between the nuts 5 and 6. I have it. Then, by loosening the nut 5 on the clutch housing H side, Therefore, the stopper pin 2 can rotate within the pin rotation center hole 4 around the base end 2a. The position is fixed in the engaged position shown in Fig. 2 and the disengaged position shown in Fig. 4. be able to. When the stopper pin 2 is in the engaged position, that is, in the state shown in FIGS. 1 and 2, In this case, the fixing part 2c is inserted into the pin insertion hole 3 and shaped into the clutch shaft K. It is adapted to be engaged with the formed groove M.

[0014] Also, loosen the nut 6 screwed onto the base end 2a of the stopper pin 2, and When the pin 2 is rotated clockwise in FIG. 2 to the non-engaged position, the The engagement between the groove M of the clutch shaft K and the fixed part 2c is released, and the clutch shaft The shaft K is movable in the axial direction. That is, in FIGS. 3 and 4 The state shown is shown.

[0015] Next, we will explain how to replace the clutch disc D of the clutch device configured as described above. The effect during exchange will be explained. First, the stopper pin 2 is changed from the engaged position to the non-engaged position. That is, Disengage the groove M of the clutch shaft K and the fixed part 2c of the stopper pin 2. To do this, loosen the nut 6 on the clutch housing H side and remove the stopper pin in 2 clockwise 90 degrees and tighten the nut 6 again (as shown in Figures 3 and 4). state). The engagement between the fixed portion 2c of the stopper pin 2 and the groove M of the clutch shaft K By releasing the engagement, the clutch shaft K can move in the axial direction. Becomes Noh.

[0016] Next, insert the clutch shaft moving lever I into the pin insertion hole 3 of the front cover 1. Insert the tip of the clutch shaft moving lever I and the clutch shaft K. and groove M are engaged with each other. Then, move the lever I for moving the clutch shaft to the front. Bring it into contact with the fixed part 2c on the cover 1 side, and then move the clutch shaft moving lever I. Rotate it to the engine E side (left side in Figure 3).

[0017] That is, the upper part of the lever I for moving the clutch shaft is the point of effort, and the lever I for moving the clutch shaft is the point of effort. The contact part between the operating lever I and the fixed part 4 is the fulcrum, and the groove part of the clutch shaft K The tip of the clutch shaft moving lever I engaged with M is the point of action of the lever. According to the principle, the clutch shaft K is moved toward the transmission T side. At this time, The clutch shaft K is the gear in the transmission T, the clutch disc D and the pressure. Since it is spline connected to plate P, it can be moved smoothly to the transmission T side. Ru.

[0018] Next, remove the clutch cover B connected to the flywheel F. , remove the worn clutch disc D from the clutch housing H and install a new disc. Replace with latch disc D and attach clutch cover B to flywheel F again. Let's go. Then, connect the tip of the clutch shaft moving lever I to the clutch shaft. At the same time, engage the clutch shaft moving lever I with the engine. contact the fixed part 2c on the side of the engine E and rotate it toward the transmission side T.

[0019] By rotating the moving lever I toward the transmission side T, the clutch Shaft K is moved to the engine E side. That is, on the outer circumference of the clutch shaft K Screwed splines and inner periphery of clutch disc D and pressure plate P The threaded splines are joined. Next, the clutch shaft K, clutch disc D and pressure plate are After confirming that the spline is connected to the stopper pin, loosen the nut 6 and remove the stopper pin. Rotate the lock 2 counterclockwise in FIG. 4 and fix it in the engaged position. That is, click again. Engage the groove M of the latch shaft K with the fixed part 2c of the stopper pin 2, and By restricting the movement of the clutch shaft K in the axial direction, the clutch disc D can be The replacement work is completed.

[0020] As detailed above, the friction clutch device equipped with the stopper pin 2 of this embodiment According to the above, the movement of the clutch shaft K in the axial direction is restricted by rotating toward the front cover 1. When the stopper pin 2 is supported by the function and the restriction is released. To do this, loosen the nut 6 exposed outside the clutch housing H, and remove the stopper pin 2. This is possible by rotating the clutch shaft K, so it is easy to rotate the clutch shaft K in the axial direction. movement restrictions can be lifted.

[0021] The stopper pin 2 also engages and disengages from the groove M of the clutch shaft K. At the same time, if it is in the disengaged position, move the clutch shaft K in the axial direction. It has the dual function of acting as a fulcrum for the lever I for moving the clutch shaft when moving it. Therefore, the number of parts of the friction clutch device is reduced and the clutch disc D is replaced. The work can be shortened.

[0022] The present invention is not limited to the above-mentioned embodiments, and may be modified without departing from the spirit of the invention. For example, the following configuration can be used within a certain range. In the above embodiment, the friction clutch device uses only one clutch disk D. However, this has been replaced with a multi-plate friction clutch using several clutch discs D. It may also be configured with a latch device.

[0023]

[Effect of the idea]

As detailed above, according to the present invention, the movement regulation in the axial direction of the clutch shaft is The clutch shaft can be moved in the axial direction without removing the engaging member that is controlling the clutch shaft. The advantage is that the clutch disc can be easily replaced by releasing the dynamic restriction. It has a great effect.

[Brief explanation of drawings]

FIG. 1 is a partial side cross-sectional view showing a state in which a groove of a clutch shaft and a stopper pin attached to a front cover are engaged with each other in an embodiment embodying the present invention.

FIG. 2 is a sectional view taken along line XX in FIG. 1;

FIG. 3 is a partial side sectional view showing a state in which the groove of the clutch shaft and the stopper pin attached to the front cover are disengaged.

FIG. 4 is a sectional view taken along the line Y-Y in FIG. 3;

FIG. 5 is a perspective view showing the shape of a stopper pin.

FIG. 6 is a partial side sectional view showing the configuration of a conventional clutch device.

FIG. 7 is a partial side sectional view showing the operation when replacing a conventional clutch disc.

FIG. 8 is a side view showing a hook of a conventional clutch device.

FIG. 9 is a plan view showing a hook of a conventional clutch device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1...Front cover, 2...Stopper pin as a locking member, 2c...Fixing part, K...Clutch shaft, M...Groove part.

Claims (1)

[Scope of utility model registration request] 1. A clutch shaft locking member that engages with a groove of a clutch shaft to restrict axial movement of the clutch shaft, the locking member having two positions: a clutch shaft engaged position and a clutch shaft non-engaged position. A clutch that is movably attached to the clutch shaft and has a fixed portion that engages with a groove portion of the clutch shaft when in the engaged position and serves as an abutting portion for a shaft moving lever when in the non-engaged position. Shaft locking member.