A clutch cover assembly of a heavy truck transmission

Abstract

The utility model belongs to clutch technical field relates to a heavy truck gearbox's clutch cover assembly, including clutch cover, support riveting pressure spare that is located in the clutch cover, diaphragm spring and pressure plate that are located in the diaphragm spring one side between the clutch cover and support riveting pressure spare, support riveting pressure spare is connected with the elastic assembly that is located in the clutch cover surface. The elastic assembly provides the elastic force drive support riveting pressure spare to the diaphragm spring movement, offset clearance, prevent the pressure plate separation not sufficient, cause gear shifting difficult, gear tooth phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of clutch technology, and in particular to a clutch cover assembly for a heavy-duty truck gearbox. Background Technology

[0002] The clutch includes a clutch disc and a clutch cover assembly. By driving the pressure plate inside the clutch cover closer to the engine flywheel, the clutch disc is pressed against the flywheel, and power transmission is achieved by the friction of the clutch disc. When the pressure plate is driven away from the clutch disc, the power is cut off, which facilitates gear shifting. After long-term use, the contact surface between the diaphragm spring and the support rivet will wear, creating a gap. This causes the diaphragm spring support to move downward, reducing the effective stroke of the release bearing, resulting in insufficient pressure plate disengagement, causing difficulty in gear shifting and gear grinding. Therefore, this utility model proposes a clutch cover assembly for a heavy truck gearbox. Utility Model Content

[0003] The main objective of this invention is to provide a clutch cover assembly for a heavy-duty truck gearbox to solve the problems mentioned in the background section.

[0004] The present invention achieves the above-mentioned objective through the following technical solution: a clutch cover assembly for a heavy truck gearbox, comprising a clutch cover, a support riveting member disposed within the clutch cover, a diaphragm spring disposed between the clutch cover and the support riveting member, and a pressure plate disposed on one side of the diaphragm spring, wherein the support riveting member is connected to an elastic component disposed on the surface of the clutch cover.

[0005] Preferably, the support riveting component includes an integrally formed circular support portion and a plurality of riveting claws spaced apart along the periphery of the circular support portion.

[0006] Preferably, the annular support portion has a support protrusion that protrudes toward the diaphragm spring side.

[0007] Preferably, the rivet clip includes a connecting section arranged parallel to the axis of the ring support portion and a bent clip that bends radially outward from one end of the connecting section to press the elastic component onto the surface of the clutch cover.

[0008] Preferably, the diaphragm spring has a first through hole, the clutch cover has a second through hole, and the connecting section passes axially through the first through hole and the second through hole in sequence.

[0009] Preferably, the elastic component includes a plurality of fan-shaped spring plates arranged in a ring, the spring plates having multiple ridges distributed in a wave shape, the spring plates having a third through hole, and the rivet claws passing through the third through hole to press the spring plates onto the surface of the clutch cover.

[0010] The beneficial effects of this utility model are: the elastic force provided by the elastic component drives the support riveting part to move toward the diaphragm spring, thus offsetting the gap. The elastic component is formed by multiple fan-shaped spring plates surrounding a ring, so that the elastic force used to compensate for the gap is evenly distributed in the ring area, ensuring that the diaphragm spring and the ring support part are in full contact and avoiding gaps between them. Compared with the single-point compensation of the compensating disc spring, the effect is better. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the clutch cover assembly of a heavy-duty truck gearbox, as shown in the example.

[0012] Figure 2 This is a cross-sectional view of the clutch cover assembly of a heavy-duty truck gearbox.

[0013] Figure 3 This is a schematic diagram of the spring sheet structure.

[0014] Figure 4 This is a schematic diagram of the supporting riveting structure.

[0015] The numbers in the diagram represent:

[0016] 1. Clutch cover; 11. Second through hole; 2. Support riveting component; 21. Circular support part; 211. Support protrusion; 22. Riveting claw; 221. Connecting section; 222. Bending claw; 3. Diaphragm spring; 31. First through hole; 4. Pressure plate; 5. Elastic component; 51. Fan-shaped spring plate; 511. Protrusion; 512. Third through hole. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to specific embodiments.

[0018] Example:

[0019] like Figure 1-4 As shown, a clutch cover assembly for a heavy-duty truck gearbox according to this utility model includes a clutch cover 1, a support riveting member 2 disposed within the clutch cover 1, a diaphragm spring 3 disposed between the clutch cover 1 and the support riveting member 2, and a pressure plate 4 disposed on one side of the diaphragm spring 3. The support riveting member 2 is connected to an elastic component 5 disposed on the surface of the clutch cover. The elastic component 5 provides the support riveting member 2 with a spring force away from the pressure plate 4. When a wear gap occurs between the diaphragm spring 3 and the support riveting member 2, the spring force provided by the elastic component 5 drives the support riveting member 2 to move towards the diaphragm spring 3 to offset the gap.

[0020] The support riveting component 2 includes an integrally formed circular support portion 21 and a plurality of riveting claws 22 spaced apart around the periphery of the circular support portion 21. The riveting claws 22 press the elastic component 5 onto the surface of the clutch cover 1.

[0021] The annular support portion 21 has a support protrusion 211 that protrudes toward the diaphragm spring 3. The support protrusion 211 serves as the fulcrum of the diaphragm spring 3, thereby reducing the contact area between the diaphragm spring 3 and the annular support portion 21, and thus reducing friction.

[0022] The rivet claw 22 includes a connecting section 221 arranged parallel to the axis of the ring support 21 and a bent claw 222 that is bent radially outward from one end of the connecting section 221 to press the elastic component 5 onto the surface of the clutch cover 1.

[0023] The diaphragm spring 3 has a first through hole 31, and the clutch cover 1 has a second through hole 11. The connecting section 221 passes through the first through hole 31 and the second through hole 11 in sequence.

[0024] The elastic component 5 includes several fan-shaped spring plates 51 arranged in a ring. Each spring plate 51 has multiple wavy protrusions 511 and a third through hole 512. The rivet clamp 22 passes through the third through hole 512 and presses the spring plate 51 onto the surface of the clutch cover 1. The spring plate 51 undergoes elastic deformation under pressure. When a wear gap occurs between the diaphragm spring 3 and the supporting rivet 2, the elastic force provided by the spring plate 51 drives the supporting rivet 2 to move towards the diaphragm spring 3, thus offsetting the gap. Furthermore, the elastic component 5 is formed by multiple fan-shaped spring plates 51 arranged in a ring, thereby ensuring that the elastic force used to compensate for the gap is evenly distributed within the ring area. This ensures that the diaphragm spring 3 and the annular support 21 are in full contact, avoiding gaps between them. Compared with the single-point compensation of the disc spring, this method is more effective.

[0025] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A clutch cover assembly for a heavy-duty truck gearbox, comprising a clutch cover, a supporting riveting member disposed within the clutch cover, a diaphragm spring disposed between the clutch cover and the supporting riveting member, and a pressure plate disposed on one side of the diaphragm spring, characterized in that: The support riveting component is connected to an elastic component located on the surface of the clutch cover.

2. The clutch cover assembly of a heavy-duty truck gearbox according to claim 1, characterized in that: The support riveting component includes an integrally formed circular support portion and a plurality of riveting claws spaced apart along the periphery of the circular support portion.

3. The clutch cover assembly of a heavy-duty truck gearbox according to claim 2, characterized in that: The annular support portion has a support protrusion that protrudes toward the diaphragm spring side.

4. The clutch cover assembly of a heavy-duty truck gearbox according to claim 2, characterized in that: The rivet clip includes a connecting section arranged parallel to the axis of the ring support and a bent clip that bends radially outward from one end of the connecting section to press the elastic component onto the surface of the clutch cover.

5. The clutch cover assembly of a heavy-duty truck gearbox according to claim 4, characterized in that: The diaphragm spring has a first through hole, and the clutch cover has a second through hole. The connecting section passes through the first through hole and the second through hole in sequence in the axial direction.

6. The clutch cover assembly of a heavy-duty truck gearbox according to claim 4, characterized in that: The elastic component includes several fan-shaped spring plates arranged in a ring. Each spring plate has multiple ridges distributed in a wave-like pattern. Each spring plate has a third through hole. The rivet claw passes through the third through hole and presses the spring plate onto the surface of the clutch cover.

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