Diaphragm spring

Abstract

The invention 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 invention relates to the technical field of automobile accessories, and in particular to a diaphragm spring. Background Art

[0002] The diaphragm spring is a key part of the automobile diaphragm clutch, which plays the role of pressing the pressure plate and the release lever. In the specific use process, the friction between the engine flywheel and the clutch friction plate generates heat. The use of the diaphragm spring in such a high temperature environment will cause the diaphragm spring to decay prematurely and reduce the service life of the diaphragm spring. The existing diaphragm spring dissipates heat by increasing the gap between the separation fingers or opening heat dissipation holes on the separation fingers, but this heat dissipation method will reduce the elastic performance of the separation fingers, and at the same time reduce the strength of the separation fingers, making the separation fingers more likely to break. Summary of the invention

[0003] The purpose of the present invention is to provide a diaphragm spring to solve the above problems existing in the prior art.

[0004] The technical solution of the present invention 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 disc part with 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 stability of the diaphragm spring operation due to the addition of the heat dissipation structure.

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

[0008] Based on 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 grooves extend outward in an arc, and the bending direction is opposite to the rotation direction. Furthermore, fixing rings are welded on both sides of the edge of the dish. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A top view of a diaphragm spring of the present invention;

[0013] Figure 2 A bottom view of a diaphragm spring of the present invention;

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

[0015] Figure 4 It 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 listed as follows:

[0017] 1. dish portion, 2. separation finger, 3. window hole, 4. 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 present invention is a diaphragm spring, comprising a disc portion 1 and separation fingers 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 an inclined surface 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 a specific implementation, the diaphragm spring moves along the rotating shaft 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] Embodiment 2 of the present invention is a diaphragm spring. Based on embodiment 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 of fatigue fracture of the diaphragm spring are mostly located at the window hole 3. Adding reinforcing ribs 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] Embodiment 3 of the present invention is a diaphragm spring. Based on embodiment 1, two second reinforcing ribs 8 are symmetrically arranged along the heat dissipation groove 6 at the connection between the separation finger 2 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. On the basis of Example 1, all the heat dissipation grooves 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, thereby enhancing the heat dissipation groove 5's efficiency in guiding hot air.

[0027] Embodiment 5 of the present invention is a diaphragm spring. Based on embodiment 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 substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A diaphragm spring, characterized in that: The invention comprises a disc portion (1) and separation fingers (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 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 (2) and the disc portion (1) is symmetrically provided with second reinforcing ribs (8) on both sides of the heat dissipation groove (6).

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

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

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