Automobile diaphragm spring structure

Abstract

The utility model relates to an automobile diaphragm spring structure which comprises a fixing ring, and a spring mechanism is arranged in the fixing ring. The spring mechanism comprises a plurality of first separation fingers and a plurality of second separation fingers which are fixed to the inner cavity wall of the fixing ring at intervals, the width of the first separation fingers is larger than that of the second separation fingers, reinforcing plates are arranged on the front faces of the first separation fingers, and second heat dissipation holes penetrating through the reinforcing plates are formed in the front faces of the first separation fingers. The diaphragm spring has the beneficial effects that the reinforcing plate is arranged on the first separating finger with the large width, so that the first separating finger is a double-layer plate, the strength of the first separating finger is improved, and then the strength of the diaphragm spring is improved; the second heat dissipation holes are formed, the heat dissipation problem caused by the reinforcing plate is reduced, meanwhile, the reinforcing columns are arranged in the second heat dissipation holes, the strength of the first separation fingers is ensured again, and then the strength of the diaphragm spring is ensured; the structure not only improves the strength of the diaphragm spring, but also gives consideration to the heat dissipation problem of the diaphragm spring.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm springs, and particularly relates to an automotive diaphragm spring structure. Background Art

[0002] The diaphragm spring is an important component of a diaphragm clutch, which plays roles such as generating a pressing force on the pressure plate, cutting off power, and providing overload protection. The performance of the diaphragm spring has a great influence on the performance of the clutch. During the process of driving a vehicle, when the driver steps on the pedal, the fork is toggled by the clutch operating system to make the release bearing contact with the diaphragm spring. The end of the separating finger of the diaphragm spring is pressed down, and the large end of the disc area tilts up to achieve separation.

[0003] For example, a diaphragm spring disclosed in a Chinese patent (publication number: CN212272859U) belongs to the technical field of clutch accessories. It solves the problems of low structural strength and short service life of the existing diaphragm spring. The diaphragm spring includes a disc-shaped body and a circular opening. A number of radial slots and a number of separating fingers are distributed on the disc-shaped body. The separating fingers include a first separating finger, a second separating finger, and a third separating finger. The lengths of the second separating finger and the third separating finger are the same, and the length of the separating finger of the first separating finger is less than the lengths of the second separating finger and the third separating finger. A relief opening is provided on the side of the second separating finger. By setting strengthening fingers, an arc-shaped strengthening strip one, and an arc-shaped strengthening strip two, the strength of the separating fingers is improved, and the service life of the diaphragm spring is extended.

[0004] However, to ensure the heat dissipation of the diaphragm spring, the first separating finger, the second separating finger, and the third separating finger are all single-layer plate parts, and their strength is relatively low. After long-term use, they are prone to damage, affecting the normal use of the diaphragm spring. Therefore, an automotive diaphragm spring structure is proposed to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an automotive diaphragm spring structure to solve the above problems existing in the prior art.

[0006] The technical problem to be solved by the utility model is to provide an automotive diaphragm spring structure.

[0007] The technical solution of the utility model to solve the above technical problems is as follows:

[0008] An automotive diaphragm spring structure includes a fixing ring, and a spring mechanism is arranged inside the fixing ring;

[0009] The spring mechanism includes a plurality of first separating fingers and a plurality of second separating fingers that are fixedly spaced on the inner cavity wall of the fixed ring. The width of the first separating finger is greater than that of the second separating finger. A reinforcing plate is provided on the front surface of the first separating finger, and a second heat dissipation hole is formed through the reinforcing plate on the front surface of the first separating finger. A reinforcing column is longitudinally arranged in the inner cavity of the second heat dissipation hole.

[0010] The beneficial effects of the present utility model are as follows: By providing a reinforcing plate on the first separating finger with a large width, the first separating finger becomes a double-layer plate, improving the strength of the first separating finger, and further improving the strength of the diaphragm spring; By opening the second heat dissipation hole, the heat dissipation problem caused by the reinforcing plate is reduced. At the same time, a reinforcing column is provided in the second heat dissipation hole to ensure the strength of the first separating finger again, and further ensure the strength of the diaphragm spring; This structure takes into account the heat dissipation problem of the diaphragm spring while improving the strength of the diaphragm spring.

[0011] On the basis of the above technical solutions, the present utility model can be further improved as follows.

[0012] Furthermore, it further includes a first heat dissipation hole opened on the second separating finger, and a third heat dissipation hole opened at one end of the first separating finger and the second separating finger close to the fixed ring.

[0013] Furthermore, finger end blocks are fixed on one side of the plurality of first separating fingers and the plurality of second separating fingers away from the fixed ring, and both ends of the reinforcing plate are fixedly connected to the inner cavity wall of the fixed ring and the outer surface of the finger end block respectively.

[0014] Furthermore, a through groove is formed at one end of the first separating finger and the second separating finger close to the fixed ring, and a reinforcing frame is fixed on the outer surface of the through groove.

[0015] Furthermore, the first heat dissipation hole is circular, and the second heat dissipation hole and the third heat dissipation hole are both square.

[0016] Furthermore, it further includes a protection mechanism. The protection mechanism includes an anti-rust layer fixed on the outer surfaces of the first separating finger and the second separating finger. A high-temperature resistant layer is fixed on the outer surface of the anti-rust layer, and a wear-resistant layer is fixed on the outer surface of the high-temperature resistant layer.

[0017] Furthermore, the anti-rust layer is phytic acid, the high-temperature resistant layer is a silicon carbide coating, and the wear-resistant layer is polytetrafluoroethylene. Description of the Drawings

[0018] Figure 1 is a structural schematic diagram of the present utility model;

[0019] Figure 2 is the present utility model Figure 1 an enlarged view of part A in;

[0020] Figure 3 This is a top - view structural schematic diagram of the protection mechanism of the present utility model.

[0021] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0022] 1. Fixed ring; 2. Spring mechanism, 201. First separating finger, 202. Second separating finger, 203. Through - slot, 204. Reinforcing frame, 205. First heat - dissipation hole, 206. Second heat - dissipation hole, 207. Reinforcing plate, 208. Finger - tip block, 209. Reinforcing column, 210. Third heat - dissipation hole; 3. Protection mechanism, 301. Rust - proof layer, 302. High - temperature - resistant layer, 303. Wear - resistant layer. Specific embodiments

[0023] The principles and features of the present utility model will be described below with reference to the attached drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0024] As Figure 1 shown, in Embodiment 1 of the present utility model, an automotive diaphragm spring structure includes a fixed ring 1. Inside the fixed ring 1, there is a spring mechanism 2. Through the cooperation of the fixed ring 1 and the spring mechanism 2, an automotive diaphragm spring is formed.

[0025] As Figure 1 and Figure 2 shown, the spring mechanism 2 includes a plurality of first separating fingers 201 and a plurality of second separating fingers 202 that are fixedly spaced on the inner cavity wall of the fixed ring 1. The width of the first separating finger 201 is greater than that of the second separating finger 202. On the front surface of the first separating finger 201, there is a reinforcing plate 207 to increase the strength of the first separating finger 201 and improve its service life. A second heat - dissipation hole 206 is formed through the reinforcing plate 207 on the front surface of the first separating finger 201 for dissipating heat from the first separating finger 201, reducing the temperature of the first separating finger 201, and preventing the first separating finger 201 from being damaged due to excessive temperature during use. Inside the second heat - dissipation hole 206, a reinforcing column 209 is longitudinally arranged to increase the strength of the first separating finger 201 and prevent the first separating finger 201 from breaking from the second heat - dissipation hole 206.

[0026] By setting a reinforcing plate 207 on the first separating finger 201 with a large width, the first separating finger 201 becomes a double - layer plate, improving the strength of the first separating finger 201 and thus improving the strength of the diaphragm spring. By opening the second heat - dissipation hole 206, the heat - dissipation problem caused by the reinforcing plate 207 is reduced. At the same time, a reinforcing column 209 is arranged in the second heat - dissipation hole 206 to ensure the strength of the first separating finger 201 again and thus ensure the strength of the diaphragm spring. This structure takes into account both the strength improvement and the heat - dissipation problem of the diaphragm spring.

[0027] In the second embodiment of this automotive diaphragm spring structure, on the basis of the first embodiment, it further includes a first heat dissipation hole 205 opened on the second separating finger 202 for dissipating heat from the second separating finger 202, reducing the temperature of the second separating finger 202, and preventing the second separating finger 202 from being damaged due to excessive temperature during use. A third heat dissipation hole 210 is opened at one end of the first separating finger 201 and the second separating finger 202 close to the fixed ring, further improving the heat dissipation performance of the first separating finger 201 and the second separating finger 202.

[0028] In the third embodiment of this automotive diaphragm spring structure, on the basis of the first embodiment, finger tip blocks 208 are fixed on one side of multiple first separating fingers 201 and multiple second separating fingers 202 away from the fixed ring 1, which is convenient for the release bearing to push. Both ends of the reinforcing plate 207 are fixedly connected to the inner cavity wall of the fixed ring 1 and the outer surface of the finger tip block 208 respectively, for fixing the reinforcing plate 207 and improving the strength of the first separating finger 201.

[0029] In the fourth embodiment of this automotive diaphragm spring structure, on the basis of the first embodiment, a through groove 203 is opened at one end of the first separating finger 201 and the second separating finger 202 close to the fixed ring 1, and a reinforcing frame 204 is fixed on the outer surface of the through groove 203. The strength of the through groove 203 is increased through the reinforcing frame 204 to prevent damage during use.

[0030] In the fifth embodiment of this automotive diaphragm spring structure, on the basis of the second embodiment, the first heat dissipation hole 205 is circular, and the second heat dissipation hole 206 is square. The square shape increases the heat dissipation area. The second separating finger 202 and the first separating finger 201 are dissipated heat through the first heat dissipation hole 205 and the second heat dissipation hole 206 respectively, improving the heat dissipation effect of the second separating finger 202 and the first separating finger 201, extending the service life of the second separating finger 202 and the first separating finger 201, reducing the temperature of the second separating finger 202 and the first separating finger 201, and being beneficial to the long-term use of the second separating finger 202 and the first separating finger 201.

[0031] As Figure 3 shown, in the sixth embodiment of this automotive diaphragm spring structure, on the basis of any one of the first to fifth embodiments, it further includes a protection mechanism 3. The protection mechanism 3 includes an anti-rust layer 301 fixed on the outer surfaces of the first separating finger 201 and the second separating finger 202. A high-temperature resistant layer 302 is fixed on the outer surface of the anti-rust layer 301, and a wear-resistant layer 303 is fixed on the outer surface of the high-temperature resistant layer 302.

[0032] The protection mechanism 3 is composed of an anti-rust layer 301, a high-temperature resistant layer 302, and a wear-resistant layer 303, which not only improves the high-temperature resistance of the first separation finger 201 and the second separation finger 202, but also improves the wear resistance of the first separation finger 201 and the second separation finger 202, facilitating the long-term use of the first separation finger 201 and the second separation finger 202 and extending the service life of the first separation finger 201 and the second separation finger 202.

[0033] In this embodiment 7 of an automotive diaphragm spring structure, on the basis of Embodiment 6, the anti-rust layer 301 is phytic acid. Phytic acid is a natural non-toxic organic chemical product extracted from food crops. When used as a rust inhibitor for magnetic materials, it can quickly chelate with metals on the surface to form a dense monomolecular complex protective film, effectively inhibiting the corrosion of metals. The high-temperature resistant layer 302 is a silicon carbide coating. SiC has excellent physical and chemical properties such as high melting point, high hardness, corrosion resistance, oxidation resistance, etc. Especially in the range of 1800 - 2000 °C, it has good ablation resistance. The wear-resistant layer 303 is tetrafluoroethylene, which is used as a raw material for manufacturing new heat-resistant plastics, engineering plastics, new fire extinguishing agents, and fog inhibitors to improve the wear resistance of the first separation finger 201 and the second separation finger 202 and extend the service life of the clutch. The reinforcing plate 207 is fixed to the front surface of the wear-resistant layer 303 to improve the stability of the reinforcing plate 207.

[0034] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An automotive diaphragm spring structure, characterized in that, It includes a fixing ring (1), and a spring mechanism (2) is arranged inside the fixing ring (1); The spring mechanism (2) includes a plurality of first separating fingers (201) and a plurality of second separating fingers (202) that are fixedly spaced on the inner cavity wall of the fixing ring (1). The width of the first separating finger (201) is greater than that of the second separating finger (202). A reinforcing plate (207) is arranged on the front surface of the first separating finger (201). A second heat dissipation hole (206) is formed through the reinforcing plate (207) on the front surface of the first separating finger (201). A reinforcing column (209) is longitudinally arranged in the inner cavity of the second heat dissipation hole (206).

2. The automotive diaphragm spring structure according to claim 1, wherein It further includes a first heat dissipation hole (205) formed in the second separating finger (202), and a third heat dissipation hole (210) formed at one end of the first separating finger (201) and the second separating finger (202) close to the fixing ring (1).

3. The automotive diaphragm spring structure according to claim 1, characterized in that, Finger end blocks (208) are fixed on one side of the plurality of first separating fingers (201) and the plurality of second separating fingers (202) away from the fixing ring (1). Two ends of the reinforcing plate (207) are respectively fixedly connected to the inner cavity wall of the fixing ring (1) and the outer surface of the finger end block (208).

4. The automotive diaphragm spring structure according to claim 1, characterized in that, A through groove (203) is formed at one end of the first separating finger (201) close to the second separating finger (202) near the fixing ring (1), and a reinforcing frame (204) is fixed on the outer surface of the through groove (203).

5. The automotive diaphragm spring structure according to claim 2, characterized in that, The first heat dissipation hole (205) is circular, and the second heat dissipation hole (206) and the third heat dissipation hole (210) are both square.

6. The automotive diaphragm spring structure according to any one of claims 1 to 5, characterized in that, It further includes a protection mechanism (3). The protection mechanism (3) includes an anti-rust layer (301) fixed on the outer surfaces of the first separating finger (201) and the second separating finger (202). A high-temperature resistant layer (302) is fixed on the outer surface of the anti-rust layer (301). A wear-resistant layer (303) is fixed on the outer surface of the high-temperature resistant layer (302).

7. The automotive diaphragm spring structure according to claim 6, characterized in that, The anti-rust layer (301) is phytic acid, the high-temperature resistant layer (302) is a silicon carbide coating, and the wear-resistant layer (303) is polytetrafluoroethylene.

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