RU17589U1 - CLUTCH SPRING SPRING - Google Patents

Abstract

1. The diaphragm spring of the clutch, made in the form of a disk with holes and internal radial cuts forming petals, the ends of which have a working area of the contact surface with the release bearing of the clutch, characterized in that the cuts to the contact surface of the petals with the release bearing are made of increased width and form grooves, while on the petals, bends in the form of corrugations are made on the petals to the contact surface of the petals with the release bearing, and when the diaphragm spring is flat, cuts between the moldings stkami in the working area of contact with the release bearing surface form a minimum clearance equal to 0-1 mm.2. The diaphragm spring according to claim 1, characterized in that the height of the corrugations from the upper plane of the petals is h = 2-10 mm, and the length of the corrugations is t = 10-30 mm.

Description

: 2000130842 :,,; i :: „„, ,,

DIAPHRIGMEN nPaiHHfi MUFTN CLUTCH

The utility model relates to mechanical engineering and can be used in the transmission of vehicles.

Known orifice plates for clutch couplings, for example, a clutch containing a primary polymouth coupling having teeth on the inner surface, are interacting; with a diaphragm spring (elastic element) made in the form of a leaf spring and - shaped in longitudinal section, equipped with plates fixed at its ends, which are placed in the radial holes of the thrust disk, and teeth on the periphery that mesh with the teeth of the outer coupling half ( cm, A.S. USSR N 715845, CL, F 16 D P / 04, 1980),

This diaphragm spring is designed to work with gear clutches.

The closest technical solution to the proposed utility model for the intended purpose is the diaphragm spring of the clutch, described in the book by V.I. Pnokhin Domestic Cars, p. 315 316, Moscow, Mayinostroenie, 1977.

The diaphragm spring has the form of a disk with internal radial cuts that form the petals (eighteen petals), which are the switching levers. In the free state, the diaphragm rod has the shape of a cone. A spring is installed between the clutch pressure plate and release bearing. The contact area of the ends of the petals with the release bearing is discontinuous due to large gaps in the radial cuts between the petals, therefore, the specified contact area is maximally

consequence, reduction in the service life of the diaphragm spring,

A similar design of the diaphragm prgin and with such disadvantages is described in the book by S.G. Borisov et al., Tractor Coupling Machines, pp. 48 48, Moscow, Mechanical Engineering, 1972,

The proposed diaphragm protrusion consists of a disk with holes and internal radial cuts forming petals, the ends of which have a working area of the contact surface with the clutch release bearing. Distinctive features in the inventive diaphragm spring are cuts made of increased width in the form of grooves and bends in the form of corrugations made on the petals up to the contact surface with a retractable bearing, which, when the diaphragm spring is flat, allows a minimum clearance of about 1 mm in the cuts between the petals in the working area of the contact surface with the release under the rose.

Specifically, obtaining a minimum clearance between the petals in the working area of the contact surface with the release bearing during deformation of the corrugations allows maximum use of the area of the ends of the petals and eliminates the dependence on the surface quality obtained by cutting (forming) the petals, and, therefore, increase the wear resistance and increase the CDOK of the spring.

The implementation of the corrugations with a height equal to h 2 f Ymm from the upper plane of the petals and a length of t - 10 j 30 mm allows to reduce the deformation of the petals.

The proposed diaphragm spring is shown in the drawings

in FIG. 1 - common 8ID spring, top view;

in FIG. 2 longitudinal section of a spring:

SHEET spring steel, made in the form of a disk, with holes 2 and internal radial grooves 3, forming petals 4 (in the example there are 18 mtk). The cuts 3 to the working area P of the contact surface of the ends of the petals 4 with the squeeze submachine 5 are of increased width and form grooves L, fla of the petals to the working area P of the contact surface of the petals 4 with the squeeze POD1IPNIK 5 bends in the form of corrugations 6. The height of the corrugations from the upper plane of the petals is equal to h t 10 mm, and the length of the corrugations is t - 10 f 30 mm. Diaphragm przhina installed between the casing 1 and the pressure plate 8 of the clutch. The spring is fixed to the casing with the help of stepped mift 9 installed in the holes 7. spring. The ends of the petals 4 of the spring interact with the release pod 5. The flat state of the diaphragm spring cuts 3 between the petals 4 in the working area P of the contact surface of the ends of the petals 4 with the release bearing 5 form a minimum clearance equal to I O f 1 mm.

The diaphragm spring operation is carried out as follows. When transmitting torque, the pressure bearing 5 does not exert pressure on the petals 4 of the diaphragm spring, and with its disk 1 (uncut part) it creates the necessary force to clamp the driven disk between the flywheel (not shown in the drawing) and pressure disk 8. When disengaging the clutch, the pressure bearing 5, pressing on the working area P of the surface of the ends of the petals 4, deforms the spring, withdraws the pressure disk 8, and the transmission of torque is stopped. With non-deferred overlays of the driven disk, as a rule, when the clutch is engaged, the diaphragm spring is in a flat position, and when the clutch is turned off, the in-line bearing 5 gives it a conical shape. As the pads wear, when the clutch is on, the spring takes a conical shape and when turned off

the clutch under the influence of the pressure bearing 5, the spring passes through a flat state. To obtain the most wear resistance, it is necessary to maximally preserve the contact area of the pressure bearing 5 with the petals 4 of the diaphragm spring, that is, the gap 1 between the petals in the working area P must be changed to a value that allows the spring to move freely through the flat state without jamming. The bend in the form of corrugations allows GT to obtain a minimum clearance of 1 O: - 1 mm. as a result, the area of the working zone P of the ends of the petals 4 is maximally used and the dependence on the quality of the surface obtained by cutting the petals is eliminated, which increases the wear resistance of the working zone P, and, therefore, the service life of the diaphragm spring is increased by 1.5 2 times.

authors: I, S.D. Kovalev

7., V.Y. Gracianov

Claims (2)

1. The diaphragm spring of the clutch, made in the form of a disk with holes and internal radial cuts forming petals, the ends of which have a working area of the contact surface with the release bearing of the clutch, characterized in that the cuts to the contact surface of the petals with the release bearing are made of increased width and form grooves, while on the petals, bends in the form of corrugations are made on the petals to the contact surface of the petals with the release bearing, and when the diaphragm spring is flat, cuts between the moldings stkami in the working area of contact with the release bearing surface form a minimum clearance equal to 0-1 mm. 2. The diaphragm spring according to claim 1, characterized in that the height of the corrugations from the upper plane of the petals is h = 2-10 mm, and the length of the corrugations is t = 10-30 mm.