SU800455A1 - Clutch - Google Patents

Description

(54) CLUTCH COUPLING

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The invention relates to mechanical engineering and can be used & np, for example, in transmissions of self-propelled machines.

A clutch is known, comprising a master, a slave and a pressure disc associated with the master and the driven shafts, as well as a shutdown mechanism and mechanism. increase disk compression.

In this construction, the drive disk is fixedly mounted on the drive shaft and the disk compression reinforcement mechanism is in the form of a hydromechanical system acting on a pressure disk in which the control spool is connected to the deactivation mechanism made in the form of a pedal. This coupling provides the transmission of torque of any magnitude with little effort to disengage the clutch tl.

The disadvantage of the device is the complexity of the operating conditions. The purpose of the invention is to simplify the design.

The goal is achieved by the fact that in a clutch comprising a master, a slave and a pressure disc, connected to the master and the driven shafts, as well as the mechanism of

the mechanism for strengthening the compression of the disks, the latter is made in the form of a cam clutch with inclined working surfaces of the cams located between the drive shaft and the drive disk installed with axial movement and rigidly connected with them.

The drawing shows a clutch coupling, a general view.

The clutch includes a drive shaft 1, a drive disc 2, a driven disc 3 with friction linings, a driven shaft 4, a pressure disc 5, pressure springs 6, a casing 7, a crankcase B, a clutch deactivation mechanism in the form of a pedal 9 and a drive compression mechanism , made in the form of a cam clutch 10 for connecting the driving disk 2 with the drive shaft 1, having inclined working surfaces of the cams (angle).

The guiding pins 11 are fixed on the casing 7, and the casing is connected

Claims (1)

5 with a drive disk 2 with slots 12 with the possibility of mutual axial movement of the mating parts. The springs 6 are installed between the pressure disc 5 and the casing 7 in a pre-compressed state. The housing 7 rests on the bearing 13. The slave disk 3 is located between the driving 2 and pressure 5 disks and mounted on the driven shaft 4 on the splines 14 with the possibility of axial movement along the splines. The pressure disk 5 is loosely mounted, on the driven shaft 4, and one end of the driven shaft - into the slot of the driving disk 2 with the possibility of mutual twisting and axial movement of the associated parts. The pressure plate 5 is combined with the pedal 9 of the clutch off mechanism. Carter 8 is fixed to the engine block. The force compressing the clutch discs and providing friction between them creates springs 6. They are designed in such a way that their total compressive strength is lower than the maximum muscular strength of the driver's leg. The device works as follows. During the operation of the machine, the transmission of torque M from the drive shaft 1 to the follower 4 is carried out through the cam clutch 10, the driving disk 3, the driven disk 3 connected to the disk 2 by friction force,. and the spline joint 14. With increasing torque, the circumferential force P, acting on the cams of the coupling 10, and its relative component PJ, which pushes the cam 10 of the coupling in the axial direction (o), increases. At the same time, the driving disk 2, moving in the axial direction, through the driven 3 and pressing 5 disks compresses the springs b up to the stop of the pressure disk 5 into the base of the pin 11. After that, the component R. the compressing disks changes proportionally to the change in the steepness M, since Р, Р5ГПс (((where V. is the radius of application of force PO) is the angle of inclination of the working surface of the coupling sleeve. Thus, as the torque changes, the frictional force changes proportionally to the clutch of the discs effort then there is an automatic operation of the clutch. At the same time, the clutch can transmit the torques at which the force compressing the discs many times exceeds the driver’s maximum muscular effort.When the clutch is turned off (for example, when changing gears of the transmission), when the known clutches are turned off, the fuel supply to the engine is reduced, and the torque M on the drive shaft 1 of the clutch and the circumferential force P. constricting the discs are automatically reduced. Under the action of the force of the springs b, the disks move in the axial direction to the initial position, in which the compression of the disks is carried out only by the force of the springs b. By applying the muscular force of the driver's foot to the pedal 9, the force of the springs b is overcome, which is less than the applied force, and the clutch is disengaged. Thus, the device provides an automatic increase in the compression of the clutch discs and the proportionality of the compression force to the torque transmitted by the clutch at a low clutch release force and the relative simplicity of the device. Claims of the clutch comprising a master, a slave and a pressure disc associated with the drive and the driven shafts, as well as a shutdown mechanism and a mechanism for strengthening the compression of the disks, which is designed to simplify the design of the mechanism for strengthening the compression of the disks made in the form of a cam clutch with inclined working surfaces of cams located between the drive shaft and the drive disk mounted with the possibility of axial movement and rigidly connected with them. Sources of information taken so attention in the examination 1. M.Tolmushev Car device. Publishing house of Lviv State University, 1969, p. 231-232.