JPH01182626A - Multi-plate clutch - Google Patents

Abstract

PURPOSE:To contrive an improvement in vibration proofing effect with ease by providing a vibration isolator which bounces resiliently the outer circumferential periphery of a clutch plate so as to absorb vibration for a clutch case which houses clutch plates movably in the axial direction while engaging them therein. CONSTITUTION:Both an engaging recess 10 which is engaged with a projection 9 formed on the outer circumferential periphery 3 of a driving side clutch plate 1, and an engaging projection 11 are formed onto the circumferential tip end of a clutch case so that a driving side clutch plate 17 is arranged one after the other while being interspaced with the clutch plate 1. In addition, a vibration isolator 4 made of a leaf spring in an U-shape configuration is provided with a clip section 21 so as to be engaged with the engaging projection 11 in such a way as to hold the projection from inside and outside. And in this case, the inner piece of the isolator is brought in contact with the outer circumferential periphery 3 of a cut-out section 12 corresponding to the inner circumferential surface of the engaging projection 11 so that the clip section 21 is engaged with the engaging hole 22 of the engaging projection 11. Hence, shock due to the vibration of the clutch plate 1 can be damped, vibration proofing effect can thereby be improved in a simple manner.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a multi-disc clutch used for turning on and off power transmission, and can be used as a transmission clutch for mobile agricultural machines such as tractors, vehicles, etc.

Prior Art and Problems to be Solved by the Invention In a multi-disc clutch, a part of the clutch plate moves when the clutch is disengaged and comes into contact with other members such as the release bin that make up the clutch, producing a knocking noise. often emitted.

Means for Solving the Problems This invention provides a clutch case (2) which fits and accommodates a clutch play (1) in a movable manner in the direction of the rotating shaft.
A multi-disc clutch is constructed in which a vibration isolator (4) is provided to absorb vibrations by resonating the outer peripheral edge (3) of the clutch plate (1).

Functions and Effects of the Invention The transmission of the clutch is turned on and off by contact pressure in the axial direction of the plate surface of the clutch plate (1) in the clutch case (2), and is turned off by separation. When disengaging the clutch, the outer periphery (3) of the clutch plate (1)
) is provided with an elastic force by the vibration isolator (4) between it and the clutch case (2), so it is difficult for this clutch play (1) to swing in the axial direction, and the clutch It is possible to reduce the impact force on other clutch components caused by the rocking of the clutch plate (1), thereby reducing clutch slamming noise. is emitted by the vibration isolator (4),
It is simple and the anti-vibration effect can be maintained well.

Embodiment In Figs. 1 to 3, the multi-disc clutch is connected between the drive shaft (5) that transmits power from the engine side and the driven shaft (6) that transmits power to the speed change transmission device in the mission case. establish. The clutch case (2) is attached to the tip of the drive shaft (5) with a bolt (7), and the center of the clutch case (2) is attached to the tip of the driven shaft (6) concentric with the drive shaft (5). The part is rotatably supported by a bearing (8).

In addition, the protrusion (9) formed on the outer circumferential edge (3) of the clutch plate (1) on the drive side is fitted onto the tip circumferential portion of this clutch case (2) to engage and rotate in the rotational direction. An engaging concave portion (10) and a retaining convex portion (11) are formed, and a notch (12) between the protrusions (9) of clutch play (1) is formed in the engaging convex portion (11). At the same time, the protrusion (9) is located in the engagement recess (lO) and is movable in the axial direction.

At the tip of the driven shaft (6), a release pin (13) is protruded at equal angles around the shaft and parallel to the axial direction, and a helical clutch spring (13) is provided which springs in the same direction. The desk (15) on which the desk (14) is arranged is mounted on a shaft so that it rotates integrally,
In addition, a friction plate (1111) is fitted to the release pin (13) so as to be freely movable in the axial direction, and can be constantly urged toward the shaft end side by the clutch spring (14). There is. The release pin (13)
A driven side clutch plate (+7) is provided which is interposed alternately between each of the driving side clutch plates (1), and the pin hole of this clutch plate (17) is inserted into the release pin (13). be able to move freely in the axial direction while
Moreover, it is configured to rotate integrally in the direction around the axis. (1
8) is a locking nut located at the tip of each release pin (13) to stop the movement of the clutch play (17). (
19) is a bearing of the transmission case (20) on the driven shaft (6) side.

In this way, the latch is turned on and off by moving the friction plate (18) in the axial direction using a hydraulic cam or the like to connect the clutch plate (1) on each driving side that engages with the clutch case (2) and the release pin (13). ) and each driven-side clutch plate (17) to be fitted into pressure contact with each other by the clutch spring (14), the clutch can be engaged and transmitted, and the friction can be reduced against the clutch spring (14). By releasing the pressure from the plate (18), each clutch plate (
1) The clutch can be disengaged by loosening the pressure between (17) and 1).

The vibration isolator (4) is made of a leaf spring, bent into a U-shape, and is fitted into the engaging protrusion (11) of the clutch case (2) by being sandwiched from the inside and outside. The inner piece of the vibrating body (4) is the outer periphery of the clutch plate (1) facing the inner circumferential surface of this engagement convex portion (11)! ! (3) is in contact with the notch (12). This allows the clutch plate (1
) is prevented from rebounding in the axial direction. Also, this vibration isolator (
4) is provided with a clip part (21) so as to protrude to the vertically opposing sides, and this clip part (21)
The clip hole (22) that is fitted into the clutch case (2
) is formed on the engaging protrusion (11) of the vibration isolator (4), and these engagements prevent the vibration isolator (4) from coming off.

Such a vibration isolator (4) may be provided at each engagement convex portion (11), or may be provided at appropriate intervals.

In Fig. 4, the vibration isolator (4) is provided with a wire material in the form of a piano wire, and each U-shaped tip is bent toward the opposite side to engage the clip hole (22). 21). (23) is a radial groove formed at the tip of each engaging protrusion (11) of the clutch case (2), into which the opposing part of the fitted vibration isolator (4) is fitted; This prevents the vibration isolator (4) from shifting in the direction of rotation.

The difference from the upper side in Figures 5 and 6 is the clutch case (2
) is configured with a vibration isolator (4) in the form of a rubber coupling made of an elastic body such as a rubber material, and by fitting this vibration isolator (4) to the outer periphery of the clutch case (2),
The fitting inner peripheral surface of this vibration isolator (4) is the clutch case (2).
The vibration of the clutch plate (1) is limited by pressing the protrusions (9) of the clutch plate (1) that protrude from the respective engagement recesses (10) to the outer periphery.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a side sectional view, Fig. 2 is an exploded perspective view of a part thereof, Fig. 3 is a side view of a part, and Fig. 4 is an exploded view of a part thereof. Slope view showing the embodiment, No. 5
The figure shows another embodiment of a part;
:F46 is a front sectional view of a part thereof. In the figure, reference numeral (1) indicates a clutch plate, (2) indicates a flange case, (3) indicates an outer peripheral edge, and (4) indicates a vibration isolator.

Claims (1)

[Claims] A clutch case (2) that fits and accommodates a clutch plate (1) movably in the direction of the rotating shaft is provided with a vibration isolator (4) that absorbs vibrations by resonating the outer peripheral edge (3) of the clutch plate (1). ) is a multi-disc clutch.