Clutch pressure plate

Abstract

The technical scheme belongs to the technical field of clutch accessories, and particularly relates to a clutch pressure plate which comprises a cast iron plate. The outer side of the lower surface of the diaphragm spring is erected on the cast iron disc, a plurality of spring windows are formed in the surface of the diaphragm spring, an elastic piece is formed between every two adjacent spring windows, and the elastic pieces can swing after being stressed; the fastening piece is arranged on one side of the swinging end of the elastic piece; the clamp spring is arranged on the fastener and located on the other side of the elastic piece, and the clamp spring is used for being matched with the fastener to limit the elastic piece; the clutch cover is matched with the cast iron disc and is used for limiting the diaphragm spring; wherein the swinging end of the elastic sheet is provided with a chamfering inclined plane, and the clamping spring is movably arranged on the chamfering inclined plane; a plurality of fixing parts are arranged on the fastener, after the fastener is installed, the fixing parts penetrate through the elastic pieces from bottom to top, and the clamping springs are arranged in the fixing parts.

Description

Technical Field

[0001] This technical solution relates to the field of clutch component technology, specifically a clutch pressure plate. Background Technology

[0002] The clutch is an important component in the automotive transmission system. Among them, the diaphragm spring clutch, due to its diaphragm spring and stamped cover structure, has the advantages of being lightweight, having low rotational inertia, requiring no adjustment of the release finger height, having high clamping force, strong torque transmission capability, uniform clamping force after full engagement, and not requiring frequent adjustment of the release gap, making it the most commonly used type of clutch.

[0003] With industrial development, automobile horsepower is increasing, and in order to ensure the safe transmission of torque by the clutch, the clamping force is also increasing. This results in the diaphragm spring becoming thicker. As a result, the friction between the diaphragm spring release finger and the pull ring becomes more and more severe when the clutch diaphragm is pulled up and pulled back, which can lead to the pull ring clamp breaking off from wear. Summary of the Invention

[0004] The purpose of this technical solution is to provide a clutch pressure plate that, during production, incorporates a chamfered bevel at the swing end of the diaphragm spring. This increases the plate's thickness while also accommodating the positions of the retaining ring and fasteners, thus solving the problem of the original retaining ring being worn through.

[0005] The purpose of this technical solution is achieved as follows:

[0006] A clutch pressure plate includes: a cast iron plate; a diaphragm spring, the outer side of which rests on the cast iron plate, the diaphragm spring having a plurality of spring windows on its surface, and a spring sheet forming between adjacent spring windows, the spring sheet being able to swing under force; a fastener disposed on one side of the swinging end of the spring sheet; and a retaining ring disposed on the fastener and located on the other side of the spring sheet, the retaining ring being used to cooperate with the fastener to limit the spring sheet; wherein, the swinging end of the spring sheet has a chamfered bevel, and the retaining ring is movably disposed on the chamfered bevel.

[0007] Preferably, the clutch pressure plate also includes a clutch cover, which, in conjunction with a cast iron disc, is used to limit the diaphragm spring.

[0008] Preferably, the fastener is provided with a plurality of fixing parts. When the fastener is installed, the fixing parts pass through the spring sheet from bottom to top, and the retaining spring is disposed inside the fixing parts.

[0009] Preferably, the swing end of a portion of the spring has a notch, and the fixing part is disposed through the notch.

[0010] Preferably, the clutch pressure plate further includes a bearing and a clamp, wherein the bearing is confined within a fastener by the clamp, and the chamfered surface is used to avoid the clamp.

[0011] Preferably, the clutch cover has several mounting positions on its periphery, and a lift seat is provided on the periphery of the cast iron disc. The clutch cover is connected to the lift seat by a lift screw; the lift seat is placed in the mounting position.

[0012] Preferably, the lift seat is provided with a plurality of lift shims and a plurality of lift washers, and the lift shims and lift washers are all fitted over the lift screw.

[0013] Preferably, the other end of the lift shim is connected to the clutch cover by a fastening screw.

[0014] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0015] 1. The swing end of the diaphragm spring designed in this technical solution is provided with a chamfered bevel. The chamfered bevel is used to provide installation space for the retaining spring, and at the same time, it can tightly fit the spring when the spring is deformed, increasing the tightness of the connection between the fastener and the diaphragm spring.

[0016] 2. The cast iron disc designed in this technical solution is equipped with a lift seat on its periphery, which allows it to fit the overall structure, and the O-ring can play a role in buffering and shock absorption. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this technical solution.

[0018] Figure 2 This is an exploded view of the technical solution.

[0019] Figure 3 This is a schematic diagram of a diaphragm spring.

[0020] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0021] Figure 5 for Figure 3 Enlarged view of section B in the middle.

[0022] Reference numerals: 1. Cast iron disc; 2. Diaphragm spring; 3. Spring window; 4. Spring sheet; 5. Fastener; 6. Snap ring; 7. Chamfered bevel; 8. Clutch cover; 9. Fixing part; 10. Notch; 11. Bearing; 12. Clamp; 13. Mounting position; 14. Lift seat; 15. Lift screw; 16. Lift washer; 17. Lift gasket; 18. Fastening screw. Detailed Implementation

[0023] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-5 As shown, a clutch pressure plate includes a cast iron plate 1, a diaphragm spring 2, a clutch cover 8, a fastener 5, a retaining ring 6, a bearing 11, and a clamp 12. The cast iron plate 1 is configured as a mounting base. The diaphragm spring 2 and the clutch cover 8 are both mounted on the cast iron plate 1. The cast iron plate 1 is an annular base with a through hole in its middle. The through hole is used to avoid the deformable diaphragm spring 2. The fastener 5 and the retaining ring 6 are used to connect the swing end of the diaphragm spring 2, so that the diaphragm spring 2 can be evenly stressed when working, thereby increasing the product's service life. The bearing 11 is used to transmit power, and the clamp 12 is used to connect the bearing 11 and the fastener 5.

[0025] Specifically, the outer side of the lower surface of the diaphragm spring 2 rests on the cast iron plate 1, and the clutch cover 8 is fastened to the cast iron plate 1 for circumferential limiting and fixing of the diaphragm spring 2. Several spring windows 3 are opened on the surface of the diaphragm spring 2, and spring pieces 4 are formed between adjacent spring windows 3. All spring pieces 4 can swing after being subjected to force. The fastener 5 is set on one side of the swing end of the spring piece 4, and the retaining spring 6 is set on the fastener 5 and located on the other side of the spring piece 4. The retaining spring 6 is used to cooperate with the fastener 5 to limit the spring piece 4. When the spring piece 4 swings, it will rub against the fastener 5 and the retaining spring 6. In view of this friction phenomenon, this application opens a chamfered bevel 7 at the swing end of the spring piece 4. The direction of the chamfered bevel 7 is adapted to the swing direction of the spring piece 4, that is, the retaining spring 6 is movably placed on the chamfered bevel 7. When the fastener 5 is displaced, the retaining spring 6 can move along the chamfered bevel 7, avoiding direct compression between the retaining spring 6 and the spring piece 4, so as to reduce the wear of the spring piece 4 and increase its service life.

[0026] Furthermore, in order to achieve the cooperation between the retaining ring 6 and the fastener 5, the fastener 5 is provided with several fixing parts 9. When the fastener 5 is installed, the fixing parts 9 pass through the spring piece 4 from bottom to top. At this time, the fastener 5 abuts against the bottom of the spring piece 4, and the retaining ring 6 abuts against the top of the spring piece 4. The retaining ring 6 is located inside the fixing part 9. Since the retaining ring 6 itself is elastic, it always has an expansion tendency, so it can cooperate well with the fixing part 9 to limit the spring piece 4.

[0027] Furthermore, the swing end of part of the spring plate 4 has a notch 10, and the fixing part 9 is set through the notch 10. The notch 10 provides installation space for the fixing part 9 set on the fastener 5, so that the internal space of the clutch pressure plate can be utilized more compactly.

[0028] like Figure 3-5As shown, the bearing 11 is confined within the fastener 5 by the clamp 12. Like the retaining ring 6, the clamp 12 has a tendency to expand, thus confining the bearing 11 within the fastener 5. The chamfered surface 7 on the spring 4 is also used to avoid the clamp 12 and prevent excessive wear between the clamp 12 and the spring 4.

[0029] like Figure 1 and Figure 2 As shown, the clutch cover 8 has several mounting positions 13 around its periphery, and the cast iron disc 1 has a lift seat 14 around its periphery. The clutch cover 8 is connected to the lift seat 14 by a lift screw 15. The lift seat 14 is placed in the mounting position 13. Several lift shims 16 and several lift washers 17 are provided on the lift seat 14. The lift shims 16 and lift washers 17 are both sleeved on the outside of the lift screw 15. The other end of the lift shim 16 is connected to the clutch cover 8 by a fastening screw 18.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. A clutch plate, characterized by, Include: Cast iron plate (1); Diaphragm spring (2), the lower surface outside of which is arranged on the cast iron plate (1), and a plurality of spring windows (3) are formed on the surface of the diaphragm spring (2), and a spring piece (4) is formed between adjacent spring windows (3), which can swing after being stressed; Fastener (5) arranged on one side of the swing end of the spring piece (4); And The snap spring (6) is arranged on the fastener (5) and located on the other side of the spring piece (4), and the snap spring (6) is used to limit the spring piece (4) in cooperation with the fastener (5); Wherein, the swing end of the spring piece (4) has a chamfered slope (7), and the snap spring (6) is movably arranged on the chamfered slope (7).

2. A clutch plate as claimed in claim 1, wherein: Also includes clutch cover (8), the clutch cover (8) cooperates with the cast iron plate (1) to limit the diaphragm spring (2).

3. A clutch disc as claimed in claim 2, wherein: A plurality of fixed parts (9) are arranged on the fastener (5), and when the fastener (5) is installed, the fixed parts (9) pass through the spring piece (4) from bottom to top, and the snap spring (6) is arranged in the fixed part (9).

4. A clutch disc as claimed in claim 3, wherein: Part of the swing end of the spring piece (4) has a notch (10), and the fixed part (9) is arranged through the notch (10).

5. A clutch plate as claimed in claim 4, wherein: Also includes bearing (11) and clamp (12), the bearing (11) is limited in the fastener (5) through the clamp (12), and the chamfered slope (7) is used to avoid the clamp (12).

6. A clutch plate as claimed in any one of claims 2 to 5, wherein: The clutch cover (8) has a plurality of mounting positions (13) on the side, the cast iron plate (1) is provided with a lift seat (14) on the side, and the clutch cover (8) is connected with the lift seat (14) through a lift screw (15); The lift seat (14) is arranged in the mounting position (13).

7. A clutch disc as claimed in claim 6, wherein: A plurality of lift washers (16) and a plurality of lift washers (17) are arranged on the lift seat (14), and the lift washers (16) and the lift washers (17) are sleeved outside the lift screw (15).

8. A clutch disc as claimed in claim 7, wherein: The other end of the lift washer (16) is connected with the clutch cover (8) through a fastening screw (18).

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