JPH02142929A - Clutch device - Google Patents

Abstract

PURPOSE:To enable an actuator to be made large in size as well as to improve operating performance by installing a hydraulic actuator and oil lines connected with said actuator out of a clutch main body. CONSTITUTION:A hydraulic actuator B is arranged at the outside of a clutch cover 10. When a clutch lever 21 is actuated, a sliding piece 32 of a distributor 30 is moved upward, then, a lever 14a is rotated together with a pinion 14 so that a piston rod 6 is moved to the right, which permits a clutch to be disengaged. On the other hand, when the sliding piece 32 is moved upward, a spool 27 is thereby pulled up, which permits a space between oil ports 24 and 25 to be intercepted, a discharge line is thereby blocked. Oil from a hydraulic pump 19 therefore enters into the hydraulic chamber of the actuator through an induction line 17 so as to let the piston rod 6 be moved to the right together with a piston 15 so that the disengagement of the clutch is thereby promoted. Then, when the actuator P is arranged at the out side of the clutch main body, the actuator can be made large in size, it can thereby be attempted that the operation performance of the clutch is improved, and slip due to oil leak is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a clutch device that utilizes the actuation force of a hydraulic actuator as clutch operation assisting force.

[Prior Art] As the engine displacement of the vehicle to which it is applied increases, the number of friction plates and the set load Φ of the clutch spring must be increased in the case of a ludge neck for use in light rain. This results in poor clutch cutting and increased clutch operation force. In other words, it adversely affects the clutch operation feeling.

Therefore, the clutch RH, which uses the hydraulic actuating force of the hydraulic actuator as the clutch operation assisting force,
65028.

Between the clutch bags and within the clutch body, a hydraulic chamber is formed in which a part of the clutch pressure disk serves as a movable wall. When hydraulic pressure is applied to this hydraulic chamber, the breath disk is moved in a direction in which it presses against each clutch plate (clutch drive plate 1 and clutch triangular plate), thereby engaging the clutch.

When the clutch lever is operated in this state, the pressure disc is moved in the clutch release direction against the clutch spring by the operating force, thereby opening the oil escape hole that was previously covered by the disc.

As a result, the oil in the hydraulic chamber is discharged through the relief hole, and the pressing force on the brake P disk is released. In other words, the engagement of the clutch is released.

According to this clutch device, since the clutch is engaged by both hydraulic pressure and the clutch spring, the setting of the clutch spring can be made smaller by 1 degree, and the clutch operating force can be reduced accordingly. be able to.

(Problems to be Solved by Kitamon) In the conventional clutch device described above, the hydraulic chamber is provided within the clutch body, so it is not possible to increase the hydraulic action area. For this reason, it is necessary to apply high hydraulic pressure to the movable body, which has a negative effect on oil distribution to other hydraulic separate devices.
give.

In addition, in this conventional clutch device, a large amount of oil is released into the clutch chamber when the oil relief hole is opened, so this oil enters between the clutch drive plate and the clutch drive plate, and the binding and the formation of these plates. The problem is that the mutual disengagement becomes worse, which makes it difficult for the clutch to disengage.

In view of the problems of such conventional clutch devices, the purpose of this book 5F, Akira, is to provide a clutch device that can reduce operating force with low oil pressure and without deteriorating cutting performance. can.

[Means for Solving the Problems] The present invention includes a hydraulic actuator that is linked to clutch operation, and the actuator's power is applied to the clutch blessing disc as clutch operation assisting force. In the clutch device, the hydraulic actuator and the oil passage connected to the actuator are located outside the clutch body.

[Function] According to the clutch device of the present invention, the clutch operation assisting force by the hydraulic actuator acts on the clutch pressure plate from the outside of the clutch body.

〔Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a clutch device according to the present invention applied to a self-spun motorcycle market.

This clutch unit is located on the clutch body A and on the outside of this clutch body A? It consists of a 111-pressure actuator B. To the taratu main body〇A driven gear 2 is rotatably supported on the counter shaft 1,
A clutch housing 3 is attached to this driven gear 2. Further, a clutch sleeve hub 4 is fixed to the countershaft 1.

A clutch press disk 55 located on the right side of the clutch sleeve hub 4 is rotatably supported by a piston rod 6 located at the rear.

In addition, the 111 part 6a of the piston rod 6 and the brake lever 1?
A roller bearing 7 is interposed between the roller bearings 4295 and 4295.

A plurality of clutch drive plates 8a and a plurality of clutch driven plates 8b are respectively disposed between the clutch sleeve hub 4 and the clutch sleeve hub 4 and the clutch 1 pressure disk 5. Further, a clutch spring 9 is interposed between the two clutches, and the pressure disk 5 is always biased to the left by this spring 9.

Note that the clutch drive plates 8a and the clutch driven plates 8b are arranged alternately.

The outer periphery of the drive plate 8a is spline-fitted to the clutch housing 3 according to the product number, and the inner periphery of the driven plate 8b is spline-fitted to the clutch sleeve hub 4.

The hydraulic actuator B is provided on the outside of the clutch cover 10, and this actuator B can be easily depicted as an oil cylinder. This actuator 1-
The piston rod 6 in E.1) is attached to the clutch cover 10 at 0
It is held movable by a bearing 10a that passes through the clutch cover 10 and a bearing 12a formed in the sill cover 12, and its left end passes through the clutch cover 10 and projects into the clutch body.

As described above, the clutch pressure disk 5 is supported on this left end portion.

On the other hand, a rack 13 is formed at the right end of the piston rod 6, and this rack 13 meshes with a pinion 14.

A hydraulic chamber 16 is formed between the piston 15 attached to the piston rod 6 and the wall of the clutch cover 10, and the upper and lower parts of the hydraulic chamber 16 are connected to the clutch cover 1.
Oil introduction passage 17 and oil discharge passage 1 bored at 0
8, respectively.

The oil introduction path 17 is connected to an oil pump 19, so that oil discharged from the pump 19 flows into the hydraulic chamber 16.

Note that the oil pump 19 is driven by an engine (not shown). Further, the discharge pressure of this pump 19 is maintained at a predetermined value by a relief valve 20.

FIG. 2 illustrates the structure of a valve 22 operated by a clap lever 21. As shown in FIG.

In the valve housing 23 of this valve 22, an input port 24 and an output port 25 are arranged facing each other.
The input boat 241 communicates with the oil discharge passage 18 formed in the clutch cover 10, and the output boat 25 communicates with the oil pan 26.

On the other hand, the spool 27 of the valve 22 has po].24.
A passage 28 for communicating between the parts 25 is formed.

Further, a spring 29 is interposed between the bottom end portion of the spool 27 and the left end surface of the valve bousing 23 for biasing the spool 27 to the left.

The distributor 30 is provided to transmit the movement of the clutch lever 21 to the lever 14a connected to the rotating shaft of the pinion 14 and the spool 27 of the valve 22.

The distributor 30 includes a housing 31 and a movable piece 32 housed in the housing 31, and the central part of the movable piece 32 is connected to the clutch lever 21 via a cable 33 and movable. One end of the movable piece 32 is connected to the lever 14a via a cable 34, and the other end of the movable piece 32 is connected to the right end of the spool 27 via a cable 35.

Note that the cables 34 and 35 are led out in the opposite direction to the cable 32 with the movable cage 32 in between.

The operation of this embodiment will be explained below.

Now, considering the state in which the clutch lever 21 is not operated, in this case, the spool 27 of the valve 22 shown in FIG. It is placed in the position where it was placed.

In this state, the oil inlet passage 17 shown in FIG.
The oil flowing into the hydraulic chamber 16 and the oil outflow passage 18
and the oil pan 26 via the valve 22 shown in FIG.
1, the hydraulic pressure in the hydraulic chamber 16 is zero, and therefore the piston 15 is placed in the position shown in FIG.

At this time, the crudge blessing disc 5 presses the crudge drive plate 8a and crudge driven plate 8b to the left by the biasing force of the spring 9, so a small frictional force acts between these plates. do. As a result, the rotational force input to the driven gear 2 passes through the clutch housing 3, clutch plates 8a, 8b, and clutch sleeve hub 4 to a counter shaft.・Convey it to 1
be done.

Next, the case where the clutch lever 21 is operated will be explained.

In this case, the laminar movement piece 32 of the distributor 30 is rotated, thereby causing the lever 14a shown in FIG. 2 to rotate together with the pinion 14 in the clockwise direction.

The rotation a of this pinion 14 is determined by the screw i shown in FIG.
After the engine rod 6 is moved to the right, the clutch pressure disc 5S is moved to the right against the spring 9.

On the other hand, when the clutch lever 21 is operated, the spool 27 of the distance height valve 22 is displaced to the right in accordance with the amount of the operation. Therefore, the flow path between the oil inflow boat 24 and the oil outflow boat 25 is gradually narrowed down, and eventually the two boats 24 and 25 are interconnected by the spool 27.

As a result, the oil pressure in the hydraulic chamber 16 of the actuator B is increased, and the oil Ef moves the screw 15 to the right. As the piston 15 moves to the right, the pressure disk 5 is moved to the right.

Thus, when the clutch lever 21 is operated,
The clutch pressure disk 5 is moved to the right by both the direct moving force via the pinion 14 and the rack 13 and the moving force based on the oil 1f, thereby separating the drive plate t-8a and the driven plate 8b. be done. In other words, in this embodiment, when the clutch is disengaged!
゛The hydraulic pressure acts as a crudge release assisting force! ? Acts on disk 5.

Now, suppose that the setting of the clutch spring 9 shown in FIG. Must be.

However, in the embodiment described above, as the passage 28 of the valve 22 is compared, the hydraulic pressure acts as a clutch disengaging force, so that the operating force of the clutch lever 21 can be significantly reduced.

For example, the receiving IOf of the piston 15: the area is 100ci
The relief capacity of relief valve 20 is 0.57 Gy, /
cir, the passage 28 of the valve 22 is fully closed n
, 'f, a rightward force of 50 Ky is applied to the clutch pressure disc 15, which contributes to reducing the operating force of the clutch lever 21.

In the case of the above embodiment, the oil cylinder 1 is the clamp body A.
Since the pressure receiving area of the piston 15 is provided outside the piston 15, the pressure receiving area of the piston 15 can be set large, and therefore a sufficiently large urging force can be applied to the piston 15 even at low oil pressure.

In addition, since the oil discharged from the hydraulic chamber 16 does not flow into the clutch chamber, this oil is transferred to the drive plate 8a.
There is no risk that the clutch will get stuck between the drive plate 8b and the clutch and the clutch will become more difficult to disengage.

In the embodiment, a hydraulic cylinder is used as the hydraulic actuator, but other hydraulic actuators such as a hydraulic cylinder may also be used.

Furthermore, in the embodiment, the operating force of the clutch lever 21 is applied to the spool of the valve 22 via the cable, but the valve 22 is provided with an electric actuator (solenoid, pulse generator, etc.) for driving the spool. , near the lever 21, there is an operation ω or rightward operation 1- of the lever.
An appropriate pin 1 for detecting the sensor may be provided, and the electromagnetic actuator 1 may be actuated based on the output signal of this sensor.

(Effects of the Invention) In the clutch device according to the present invention, the hydraulic actuator that applies clutch operation assist force to the clutch pressure disc and the oil passage connected to this actuator are connected to the clutch body. It is placed outside.

Therefore, based on the low ura Lt, a large driving force yt
This makes it possible to use a large-sized hydraulic actuator that generates a hydraulic actuator, thereby solving the problem of a large hydraulic pressure distribution ratio for this hydraulic actuator.

Furthermore, since the oil discharged from the hydraulic actuator does not enter the crutch chamber, this oil will not worsen the clap cutting.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of a clutch device according to Book 5, and FIG. 2 is a conceptual view illustrating the opening and opening of a valve. A...Clutch body, F3...Hydraulic actuator, 5...Clutch pressure disc, 6...Piston rod, 8a...Clutch drive plate, 8
b...Clutch driven plate, 10...Clutch cover 12...Cylinder cover 13...Rack, 14...Pinion, 15...Piston, 16...
- Hydraulic chamber, 17... Oil introduction path, 18... Oil discharge path, 19... Oil pump, 21... Clutch lever 22... Valve, 24... Human powered boat, 25
...output boat, 27...spool, 28...passage, 30...distributor. applicant

Claims (1)

[Claims] In a clutch device that includes a hydraulic actuator that is linked to clutch operation, and in which the operating force of this actuator is applied to a clutch pressure disk as clutch operation assistance force, the hydraulic actuator and an oil passage connected to the actuator are connected to the outside of the clutch body. A clutch device characterized in that it is located on the opposite side.