Clutch cover assembly with pre-tightened shock absorbing elastic hooks

Abstract

The utility model discloses a clutch cover assembly with pre -tightening shock -proof elastic hook relates to the field of automobile clutch, including pressure disc cover etc, the pressure disc cover is installed on the pressure disc, diaphragm spring is installed between pressure disc cover and pressure disc, one end of elastic hook sets up the hook body of bending, the other end of elastic hook rivets in the pressure disc with transmission sheet, and the other end of transmission sheet rivets in the pressure disc cover, and elastic hook is resisted in the one side of diaphragm spring outer ring through the hook body, so that the other side of diaphragm spring outer ring is contacted with the boss on the pressure disc, and the inner ring of diaphragm spring is connected by the driving of separating bearing, elastic hook extends to the end away from the hook body and forms elastic hook extension end, and under the natural state, diaphragm spring inner ring has the tendency of moving away from the pressure disc, and the pressure disc cover is pressed by elastic hook extension end, and the clutch cover assembly forms the rigid whole of pre -tightening. The utility model solves the problem that the transmission sheet is easy to deform in the transportation of existing clutch cover assembly, and the assembly is difficult to operate.

Description

Technical Field

[0001] This utility model relates to the field of automotive clutches, specifically to a clutch cover assembly with a pre-tensioned anti-vibration elastic hook. Background Technology

[0002] In traditional clutch cover assemblies, the pressure plate and cover are connected only by a transmission plate during transportation. After prolonged exposure to tensile deformation under disengagement conditions, the transmission plate is prone to plastic deformation or loss of spring force, causing the clutch clamping force to deviate from the design value after installation, thus affecting its service life. Furthermore, on the vehicle assembly line, workers must overcome the enormous clamping force of the diaphragm spring to compress the clutch for transmission installation, resulting in high labor intensity and safety hazards. While some designs use retaining rings for temporary restraint, these rings are prone to detachment and increase parts costs and assembly steps. Therefore, there is an urgent need for an integrated solution that can solve the problems of transportation deformation, streamlined assembly, and without affecting product performance. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a clutch cover assembly with a pre-tightening anti-vibration elastic hook, which solves the problems of easy deformation of the transmission plate during transportation, excessive clamping force during assembly, and difficult operation of the existing clutch cover assembly.

[0004] The purpose of this utility model is achieved through the following technical solution: This clutch cover assembly with a pre-tightened anti-vibration elastic hook includes a pressure plate cover, a pressure plate, a diaphragm spring, a transmission plate, and an elastic hook. The pressure plate cover is installed on the pressure plate, and the diaphragm spring is installed between the pressure plate cover and the pressure plate. One end of the elastic hook has a bent hook body, and the other end of the elastic hook is riveted to the pressure plate together with the transmission plate. The other end of the transmission plate is riveted to the pressure plate cover. The elastic hook abuts against one side of the outer ring of the diaphragm spring through the hook body, so that the other side of the outer ring of the diaphragm spring contacts the boss on the pressure plate. The inner ring of the diaphragm spring is connected and driven by a release bearing. The elastic hook extends away from the hook body to form an elastic hook extension end. In its natural state, the inner ring of the diaphragm spring has a tendency to move away from the pressure plate. By pressing the pressure plate cover with the elastic hook extension end, the clutch cover assembly forms a pre-tightened rigid whole.

[0005] As a further technical solution, the pressure plate cover is provided with a pressure plate cover limiting rib, which is used to cooperate with the extended end of the elastic hook to achieve tight sealing.

[0006] As a further technical solution, support rings are provided on both sides of the diaphragm spring to contact and cooperate with the pressure plate cover.

[0007] As a further technical solution, the transmission plate is fixed to the pressure plate cover by riveting with cover rivets.

[0008] As a further technical solution, the number of elastic hooks is equal to that of the transmission plates, and they are all evenly distributed along the circumference of the pressure plate.

[0009] As a further technical solution, the elastic hook is made of 65Mn material by stamping.

[0010] As a further technical solution, mounting holes are made on the elastic hook, which are aligned with the openings on the transmission plate and fixed to the pressure plate by riveting with pressure plate rivets.

[0011] As a further technical solution, an elastic hook limiting rib is provided near the extended end of the elastic hook. The elastic hook limiting rib forms a surface contact with one end face of the transmission plate, so that the hook body is limited to a fixed position on the diaphragm spring.

[0012] As a further technical solution, when the release bearing controls the clutch to disengage, the diaphragm spring pushes the hook body and drives the pressure plate to move in the opposite direction of the diaphragm spring, ensuring complete disengagement.

[0013] The beneficial effects of this utility model are as follows: 1. Functional integration and ingenious structure: A single elastic hook structure solves the three major problems of separation, shock absorption, and assembly, eliminating the need for additional limiting parts such as snap rings, thus reducing costs and assembly complexity; 2. Improve product reliability: The elastic hook pre-tensioning protects the transmission plates from damage during transportation and storage, ensuring the stability and consistency of product performance and extending the assembly life; 3. Improve assembly efficiency: Significantly reduce assembly clamping force, making installation operations easier and safer, and ensuring more precise assembly positions, thereby improving production line efficiency; 4. Performance optimization: The elastic hook assists in separation, ensuring a more thorough separation stroke of the pressure plate and reducing the risk of dragging and wear caused by incomplete separation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 for Figure 1 A magnified view of a portion of region A in the middle.

[0016] Figure 3 for Figure 1 A C-axis rotated view.

[0017] Figure 4 for Figure 1 A PP cross-sectional view (clutch in the engaged state).

[0018] Figure 5 for Figure 1 PP cross-sectional view (clutch in free state).

[0019] Figure 6 for Figure 1 A PP cross-sectional view (clutch in disengaged state).

[0020] Figure 7 This is a schematic diagram of the structure of the pressure plate cover of this utility model.

[0021] Figure 8 for Figure 7 BB cross-sectional view.

[0022] Figure 9 This is a schematic diagram of the main structure of the elastic hook in this utility model.

[0023] Figure 10 This is a top view of the elastic hook in this utility model.

[0024] Figure 11 This is a three-dimensional structural diagram of the elastic hook in this utility model.

[0025] Figure 12 This is a schematic diagram of the assembly of the elastic hook and the transmission plate in this utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Pressure plate cover; 2. Pressure plate; 3. Diaphragm spring; 4. Support ring; 5. Cover rivet; 6. Transmission plate; 7. Pressure plate rivet; 8. Balance pin; 9. Elastic hook; 10. Hook body; 11. Elastic hook limiting rib; 12. Elastic hook extension end; 13. Pressure plate cover limiting rib; 14. Mounting hole; 15. Boss. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings: Example: As attached Figures 1-12 As shown, this clutch cover assembly with pre-tightened anti-vibration elastic hook includes a pressure plate cover 1, a pressure plate 2, a diaphragm spring 3, a support ring 4, a cover rivet 5, a transmission plate 6, a pressure plate rivet 7, a balance pin 8, an elastic hook 9, a hook body 10, an elastic hook limiting rib 11, an elastic hook extension end 12, a pressure plate cover limiting rib 13, a mounting hole 14, and a boss 15.

[0028] Reference Appendix Figure 1 , 4 The pressure plate cover 1 is mounted on the pressure plate 2, and the diaphragm spring 3 is mounted between the pressure plate cover 1 and the pressure plate 2. For example... Figure 9 , 10 As shown in Figures 11 and 12, a bent hook body 10 is provided at one end of the elastic hook 9, and the other end of the elastic hook 9 is riveted to the pressure plate 2 together with the transmission plate 6. Preferably, a mounting hole 14 is opened in the middle of the elastic hook 9, the mounting hole 14 is aligned with the opening on the transmission plate 6, and is riveted and fixed to the pressure plate 2 by the pressure plate rivet 7. Figure 2 , 3As shown. Further, the other end of the transmission plate 6 is riveted to the pressure plate cover 1 via a cover rivet 5. The elastic hook 10 abuts against one side of the outer ring of the diaphragm spring 3 via the hook body 10, causing the other side of the outer ring of the diaphragm spring 3 to contact the boss 15 on the pressure plate 2. The inner ring of the diaphragm spring 3 is connected and driven by a release bearing. The elastic hook 9 extends away from the hook body 10 to form an elastic hook extension end 12. In its natural state, the inner ring of the diaphragm spring 3 tends to move away from the pressure plate 2. By pressing the pressure plate cover 1 with the elastic hook extension end 12, the clutch cover assembly forms a pre-tightened rigid whole, effectively preventing the transmission plate from failing due to long-term deformation during transportation and the deviation of the assembly due to vibration performance. Preferably, as... Figure 2 , 7 As shown in Figure 8, a pressure plate cover limiting rib 13 is provided on the pressure plate cover 1, and the extended end 12 of the elastic hook can be pressed and limited on the pressure plate cover limiting rib 13. The position of the pressure plate cover limiting rib 13 can be designed to limit the clutch working point. In the free state, the extended end of the elastic hook is pressed against the pressure plate cover limiting rib of the pressure plate cover under the action of the diaphragm spring rebound force.

[0029] Reference Appendix Figure 4 Support rings 4 are provided on both sides of the diaphragm spring 3 to contact and cooperate with the pressure plate cover 1. For example... Figure 1 As shown, the number of elastic hooks 9 is equal to that of the transmission plates 6 (three sets in total), and they are all evenly distributed along the circumference of the pressure plate 2. Preferably, the elastic hooks 9 are made of 65Mn material by stamping and are heat-treated to maintain good elasticity. During assembly, the preload force offsets part of the diaphragm spring clamping force, greatly reducing the difficulty of assembly. Several balance pins 8 are also installed on the outer periphery of the pressure plate cover 1.

[0030] An elastic hook limiting rib 11 is provided near the extension end 12 of the elastic hook 9. The elastic hook limiting rib 11 forms a surface contact with one end face of the transmission plate 6, so that the hook body 10 is limited to a fixed position on the diaphragm spring 3, which can prevent shaking and increase the stability of the elastic hook operation.

[0031] Furthermore, such as Figure 6 As shown, D is the contact diameter of the release bearing. When the release bearing controls the clutch to disengage, the diaphragm spring 3 pushes the hook body 10. The diaphragm spring 3 provides a separation force to the pressure plate 2 through the hook body 10, which is opposite to the direction of movement of the diaphragm spring 3. This causes the pressure plate 2 to move in the opposite direction to the diaphragm spring 3, ensuring complete disengagement.

[0032] The working process of this utility model: Combined state (e.g.) Figure 4 As shown): The diaphragm spring 3 presses the pressure plate 2, and the hook body 10 of the elastic hook 9 contacts the diaphragm spring 3. At this time, there is a gap or slight contact between the extension end 12 and the pressure plate cover limiting rib 13.

[0033] Separated state (e.g.) Figure 6 (As shown): The separation bearing pushes the inner ring of the diaphragm spring 3, and the outer ring of the diaphragm spring 3 tilts upward in the opposite direction, pushing the hook body 10 of the elastic hook 9, thereby pulling the pressure plate 2 towards the pressure plate cover 1 through the pressure plate rivet 7, thus achieving auxiliary separation.

[0034] Free / transportation status (e.g.) Figure 5 (As shown): When the assembly is not installed, it is in a free state. The rebound force of the diaphragm spring 3 makes it tend to return to its shape. This force (rebound force) pushes the hook body 10, forcing the extended end 12 of the elastic hook 9 to press tightly against the pressure plate cover limiting rib 13, so that the pressure plate 2, the elastic hook 9 and the pressure plate cover 2 form a pre-tightened rigid whole, which effectively protects the transmission plate 6.

[0035] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A clutch cover assembly with a pre-tightened anti-vibration elastic hook, characterized in that: The device includes a pressure plate cover (1), a pressure plate (2), a diaphragm spring (3), a transmission plate (6), and an elastic hook (9). The pressure plate cover (1) is mounted on the pressure plate (2), the diaphragm spring (3) is mounted between the pressure plate cover (1) and the pressure plate (2), one end of the elastic hook (9) is provided with a bent hook body (10), and the other end of the elastic hook (9) is riveted to the pressure plate (2) together with the transmission plate (6). The other end of the transmission plate (6) is riveted to the pressure plate cover (1), and the elastic hook (9) abuts against the pressure plate through the hook body (10). One side of the outer ring of the diaphragm spring (3) is connected to the boss (15) on the pressure plate (2), and the inner ring of the diaphragm spring (3) is connected and driven by the release bearing. The elastic hook (9) extends away from the hook body (10) to form an elastic hook extension end (12). In its natural state, the inner ring of the diaphragm spring (3) tends to move away from the pressure plate (2). The pressure plate cover (1) is pressed by the elastic hook extension end (12), so that the clutch cover assembly forms a pre-tightened rigid whole.

2. The clutch cover assembly with pre-tightened anti-vibration elastic hook according to claim 1, characterized in that: The pressure plate cover (1) is provided with a pressure plate cover limiting rib (13), which is used to cooperate with the extension end (12) of the elastic hook to achieve tight sealing.

3. The clutch cover assembly with pre-tightened anti-vibration elastic hook according to claim 1, characterized in that: The diaphragm spring (3) has support rings (4) on both sides that are in contact with the pressure plate cover (1).

4. The clutch cover assembly with pre-tightened anti-vibration elastic hook according to claim 1, characterized in that: The transmission plate (6) is riveted to the pressure plate cover (1) by the cover rivet (5).

5. The clutch cover assembly with pre-tightened anti-vibration elastic hook according to claim 1, characterized in that: The number of elastic hooks (9) is equal to that of the transmission plates (6), and they are all evenly distributed along the circumference of the pressure plate (2).

6. The clutch cover assembly with pre-tightened anti-vibration elastic hook according to claim 1, characterized in that: The elastic hook (9) is made of 65Mn material by stamping.

7. The clutch cover assembly with pre-tightened anti-vibration elastic hook according to claim 1, characterized in that: The elastic hook (9) has a mounting hole (14) which is aligned with the opening on the transmission plate (6) and is riveted to the pressure plate (2) by the pressure plate rivet (7).

8. The clutch cover assembly with pre-tightened anti-vibration elastic hook according to claim 1, characterized in that: The elastic hook (9) is provided with an elastic hook limiting rib (11) near the extended end (12) of the elastic hook. The elastic hook limiting rib (11) forms a surface contact with one side end face of the transmission plate (6), so that the hook body (10) is limited to a fixed position on the diaphragm spring (3).

9. The clutch cover assembly with pre-tightened anti-vibration elastic hook according to claim 1, characterized in that: When the release bearing controls the clutch to disengage, the diaphragm spring (3) pushes the hook (10) and drives the pressure plate (2) to move in the opposite direction to the diaphragm spring (3) to ensure complete disengagement.

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