Diaphragm spring

Abstract

The utility model relates to a diaphragm spring. Comprising a disc part and separation fingers, the separation fingers are all arranged in a protruding mode and arranged in the middle of the disc part in a circumferential array mode, the disc part is provided with heat dissipation grooves corresponding to the symmetry axis of each separation finger, and the bottom edges of the rear side faces, in the rotating direction of the diaphragm spring, of the heat dissipation grooves are chamfered to form slopes. The heat dissipation structure of the diaphragm spring is arranged on the disc part with higher strength and small shape change, so that the heat dissipation of the diaphragm spring is ensured, the strength of the integral structure of the diaphragm spring can be kept to a greater extent, the influence on the working stability of the diaphragm spring due to the additional arrangement of the heat dissipation structure is avoided, and the diaphragm spring rotates at a high speed along with the rotating shaft in the use process, so that the service life of the diaphragm spring is prolonged. The inclined plane can form a function similar to a fan, propels air to flow, generates wind energy and dissipates heat in the clutch, the heat dissipation grooves guide hot air, so that the hot air in the clutch flows and is discharged along the heat dissipation grooves, the diaphragm spring dissipates heat through flowing of the air, and the service life of the diaphragm spring is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a diaphragm spring. Background Art

[0002] The diaphragm spring is a key component in a vehicle's diaphragm clutch, acting as both a pressure plate and a release lever. During use, friction between the engine's flywheel and the clutch's friction plate generates heat. Operating the diaphragm spring in this high-temperature environment can cause premature attenuation, shortening its service life. Existing diaphragm springs dissipate heat by increasing the gap between the release fingers or by creating cooling holes in the fingers. However, this method reduces the elasticity and strength of the release fingers, making them more susceptible to breakage. Utility Model Content

[0003] The utility model aims to provide a diaphragm spring to solve the above problems existing in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A diaphragm spring includes a diaphragm spring, characterized in that it includes a disc portion and a separation finger, the separation fingers are all protruding, and a circular array is arranged in the middle of the disc portion, the disc portion is provided with a heat dissipation groove corresponding to the symmetry axis of each separation finger, and the bottom edge of the heat dissipation groove along the rear side surface of the rotation direction of the diaphragm spring is chamfered to form an inclined surface.

[0006] The beneficial effect of the present invention is that the heat dissipation structure of the diaphragm spring is arranged on the dish part which has higher strength and smaller deformation. While ensuring that the diaphragm spring can dissipate heat, the strength of the overall structure of the diaphragm spring can be maintained to a greater extent, avoiding affecting the working stability of the diaphragm spring due to the addition of the heat dissipation structure.

[0007] In the specific implementation, the diaphragm spring moves along the axis of rotation during use. Figure 1 and Figure 2 When rotating at high speed in the direction shown, the inclined surface will form a function similar to that of a fan, promoting air flow, generating wind energy, and dissipating heat inside the clutch. The heat dissipation groove will guide the hot air so that the hot air inside the clutch flows along the heat dissipation groove and is discharged. The diaphragm spring dissipates heat through the flow of air, thereby extending the service life of the diaphragm spring.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, window holes are provided at the bases of two adjacent separation fingers, and reinforcing ribs are provided inside the window holes.

[0010] Furthermore, second reinforcing ribs are provided at the connection between the separation finger and the dish portion and on both sides of the heat dissipation groove.

[0011] Furthermore, all the heat dissipation slots extend outward in an arc, and the bending direction is opposite to the rotation direction. Fixed rings are welded on both sides of the edge of the dish. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a top view of a diaphragm spring of the utility model;

[0013] Figure 2 This is a bottom view of a diaphragm spring of the utility model;

[0014] Figure 3 This is a front perspective view of a diaphragm spring of the utility model;

[0015] Figure 4 This is a reverse perspective view of a diaphragm spring of the present invention;

[0016] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0017] 1. Dish, 2. Fixing ring, 3. Window hole, 4. First reinforcing rib, 5. Heat dissipation groove, 6. Separation finger, 7. Inclined surface, 8. Second reinforcing rib. DETAILED DESCRIPTION

[0018] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0019] like Figure 2 As shown, Example 1 of the utility model is a diaphragm spring, comprising a disc portion 1 and a separation finger 6, wherein the separation fingers 6 are all protruding and arranged in a circular array in the middle of the disc portion 1, and the disc portion 1 is provided with a heat dissipation groove 5 corresponding to the symmetry axis of each of the separation fingers 6, and the bottom edge of the heat dissipation groove 5 along the rear side surface in the rotation direction of the diaphragm spring is chamfered to form a slope 7.

[0020] The heat dissipation structure of the diaphragm spring is arranged on the disc part 1 which has higher strength and smaller deformation. While ensuring that the diaphragm spring can dissipate heat, the strength of the overall structure of the diaphragm spring can be maintained to a greater extent, avoiding affecting the working stability of the diaphragm spring due to the addition of the heat dissipation structure.

[0021] In the specific implementation, the diaphragm spring moves along the axis of rotation during use. Figure 1 and Figure 2When rotating at high speed in the direction shown, the inclined surface 7 will form a function similar to that of a fan, promoting air flow, generating wind energy, and dissipating heat inside the clutch. The heat dissipation groove 5 guides the hot air so that the hot air inside the clutch flows along the heat dissipation groove 5 and is discharged. The diaphragm spring dissipates heat through the flow of air, thereby extending the service life of the diaphragm spring.

[0022] Example 2 of the present invention is a diaphragm spring. Based on Example 1, two adjacent separation fingers 7 are provided with window holes 3 at their roots, and a first reinforcing rib 4 is provided inside the window holes 3 .

[0023] The cracks that may cause fatigue fracture of the diaphragm spring are mostly located at the window hole 3. Adding a reinforcing rib 4 inside the window hole 3 increases the strength of the window hole 3 and reduces the possibility of fatigue fracture of the diaphragm spring.

[0024] Example 3 of the present invention is a diaphragm spring. Based on Example 1, two second reinforcing ribs 8 are symmetrically provided along the heat dissipation groove 5 at the connection between the separation finger 6 and the dish portion 1 .

[0025] The structural strength of the connection between the separation finger 7 and the dish portion 1 is enhanced, and the influence of the heat dissipation groove 5 on the overall structural strength is reduced.

[0026] Example 4 of the present invention is a diaphragm spring. Based on Example 1, all the heat dissipation slots 5 extend outward in an arc, and the bending direction is opposite to the rotation direction, so that the direction of hot air discharge is opposite to the rotation direction of the diaphragm spring, avoiding hot air backflow during rotation, and enhancing the heat dissipation slot 5's efficiency in guiding hot air.

[0027] Example 5 of the present invention is a diaphragm spring. Based on Example 1, fixing rings 2 are welded on both sides of the edge of the disc portion 1.

[0028] By welding the fixing ring 2 , the strength of the disc portion 1 is enhanced, and at the same time the deformation direction of the disc portion 1 is fixed, thereby enhancing the overall stability of the diaphragm spring.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A diaphragm spring, characterized in that: The invention comprises a disc portion (1) and a separation finger (6), wherein the separation finger (6) is provided with a protrusion and a circumferential array is provided in the middle of the disc portion (1), and the disc portion (1) is provided with a heat dissipation groove (5) corresponding to the symmetry axis of each separation finger (6), and the bottom edge of the heat dissipation groove (5) along the rear side surface in the rotation direction of the diaphragm spring is chamfered to form an inclined surface (7).

2. According to the diaphragm spring of claim 1, a window hole (3) is provided at the root of two adjacent separation fingers (6), and a first reinforcing rib (4) is provided inside the window hole (3).

3. According to the diaphragm spring of claim 1, the connection between the separation finger (6) and the disc portion (1) is symmetrically provided with second reinforcing ribs (8) on both sides of the heat dissipation groove (5).

4. According to the diaphragm spring of claim 1, all the heat dissipation slots (5) extend outward in an arc, and the bending direction is opposite to the rotation direction.

5. A diaphragm spring according to claim 1, wherein fixing rings (2) are welded on both sides of the edge of the disc portion (1).

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