Separated diaphragm spring

Abstract

The utility model relates to a separated diaphragm spring. Comprising separation fingers and a clamping groove ring, each separation finger comprises a separation finger tail part and a separation finger end part which are connected through an inclined plane, the inner side of the clamping groove ring is an annular groove channel, a plurality of fixing ribs are welded in the groove channel in a circumferential array mode, every two adjacent fixing ribs form a clamping groove, and one separation finger is arranged in each clamping groove in a clamping mode to form the diaphragm spring. When any separating finger is broken, the whole diaphragm spring cannot be disassembled, and only the broken separating finger needs to be replaced; when the diaphragm spring deforms, the fixing ribs fix the two sides of the inner wall of the clamping groove ring, so that the clamping groove ring cannot crack due to deformation. The diaphragm spring is divided into a plurality of parts, deformation can be reduced in the forming process, the manufacturing process requirement of the diaphragm spring is lowered, the elastic force value can be independently measured through the separation fingers, the rework rate or the rejection rate is reduced, the diaphragm spring is simple in structure, the clamping groove rings are convenient to machine, the separation fingers are good in self-positioning performance, and the diaphragm spring is suitable for automatic assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a split diaphragm spring. Background Art

[0002] The diaphragm spring is a key part of the spring clutch and provides a separation function. During use, the diaphragm spring may experience fatigue fracture. During production, it is also difficult to control the overall elastic force value of the diaphragm spring, resulting in a relatively high rework rate or scrap rate. The split diaphragm spring can replace the damaged part to reduce losses. However, the existing split diaphragm spring relies on tenon and mortise or buckle structures on both sides of the split fingers for splicing. When any one of the split fingers breaks, the entire diaphragm spring will disintegrate, and the connection is relatively weak and more prone to fatigue fracture. Content of the Utility Model

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

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A split diaphragm spring includes split fingers and a groove ring. The split fingers include a split finger tail and a split finger end connected by an inclined surface. The inner side of the groove ring is an annular groove, and a plurality of fixing ribs are welded in a circumferential array inside the groove. Two adjacent fixing ribs form a slot, and each slot is provided with one of the split fingers to form a diaphragm spring.

[0006] The beneficial effect of the utility model is that the split fingers are fixed by clamping the split finger tails in the slots. When any one of the split fingers breaks, the entire diaphragm spring will not disintegrate, and only the broken split finger needs to be replaced; when the diaphragm spring deforms, the split finger tail presses against the inner wall of the groove ring, forcing the groove ring to deform, and the fixing ribs fix both sides of the inner wall of the groove ring, so that the groove ring will not crack due to deformation.

[0007] The diaphragm spring is divided into several parts, which can reduce deformation during the forming process, reduce the manufacturing process requirements of the diaphragm spring, and the elastic force value can also be measured separately by the split fingers, reducing the rework rate or scrap rate. The diaphragm spring has a simple structure, the groove ring is easy to process, the split fingers have good self-positioning, and it is suitable for automatic assembly.

[0008] On the basis of the above technical solutions, the utility model can be further improved as follows.

[0009] Further, the arc length of the bottom of the slot is equal to the arc length of the split finger tail, the two sides of the slot are parallel to each other, and the two sides of the split finger tail are also parallel to each other.

[0010] Furthermore, on both sides of the tail of the separating finger and outside the card slot ring, there are curved surfaces, and the curved surfaces of two adjacent separating fingers are spliced to form a hole window.

[0011] Furthermore, the horizontal heights of the ends of the separating fingers are the same.

[0012] Furthermore, a reinforcing rib is provided at the connection between the tail of the separating finger and the inclined surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the card slot ring;

[0014] Figure 2 It is a schematic diagram of the connection between the separating finger and the card slot ring of the present invention Figure 1 ;

[0015] Figure 3 It is a schematic diagram of the connection between the separating finger and the card slot ring of the present invention Figure 2 ;

[0016] Figure 4 It is a schematic structural diagram of a single separating finger;

[0017] In the drawings, the list of components represented by each reference numeral is as follows:

[0018] 1. Card slot ring, 11. Fixed rib, 2. Separating finger, 21. Tail of separating finger, 22. Reinforcing rib, 23. End of separating finger, 24. Curved surface, 25. Inclined surface, 3. Window hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The principles and features of the present invention will be described below with reference to the drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0020] As Figure 1 and 2 shown, in Embodiment 1 of the present invention, a split diaphragm spring includes a separating finger 2 and a card slot ring 1. The separating finger 2 includes a tail 21 of the separating finger and an end 23 of the separating finger connected by an inclined surface 25. The inner side of the card slot ring 1 is an annular channel, and a plurality of fixed ribs 11 are welded in a circumferential array inside the channel. Two adjacent fixed ribs 11 form a card slot 12, and each card slot 12 is provided with a separating finger 2 to form a diaphragm spring.

[0021] The separating finger 2 is fixed by fitting the tail 21 of the separating finger into the card slot 12. When any one of the separating fingers 2 breaks, the entire diaphragm spring will not disintegrate, and only the broken separating finger 2 needs to be replaced. When the diaphragm spring deforms, the tail 21 of the separating finger presses against the inner wall of the slot ring 1, forcing the slot ring 1 to deform. The fixing ribs 11 fix both sides of the inner wall of the slot ring 1, preventing the slot ring 1 from cracking due to deformation.

[0022] The diaphragm spring is divided into several parts, which can reduce deformation during the forming process, lower the manufacturing process requirements of the diaphragm spring, and the elastic force value can also be measured separately by the separating finger 2, reducing the rework rate or scrap rate. The structure of this diaphragm spring is simple, the slot ring 2 is easy to process, and the separating finger 2 has good self-positioning performance, making it suitable for automated assembly.

[0023] In Embodiment 2 of the present utility model, a separable diaphragm spring, on the basis of Embodiment 1, the arc length of the bottom of the card slot 12 is equal to the arc length of the tail 21 of the separating finger, the two sides of the card slot 12 are parallel to each other, and the two sides of the tail 21 of the separating finger are also parallel to each other.

[0024] The matching of the tail 21 of the separating finger and the card slot 12 is realized, and the tail 21 of the separating finger is directly inserted into the card slot 12, which is convenient for assembly and disassembly.

[0025] In Embodiment 3 of the present utility model, a separable diaphragm spring, on the basis of Embodiment 1, curved surfaces 24 are provided on both sides of the tail 21 of the separating finger outside the slot ring 1, and the curved surfaces 24 of two adjacent separating fingers 2 are spliced to form a hole window 3.

[0026] During actual use, the cracks of the diaphragm spring due to fatigue fracture are mostly located at the hole window 3 of the disc-shaped part and develop radially, separating the separating fingers 2. By using the curved surfaces 24 on both sides of the separating fingers 2 to form the hole window 3, the easily cracked part is fixed by the slot ring 1, and the slot ring 1 plays the role equivalent to that of a reinforcing rib, increasing the stiffness of the disc-shaped part of the diaphragm spring and greatly reducing the possibility of fatigue fracture.

[0027] In Embodiment 4 of the present utility model, a separable diaphragm spring, on the basis of Embodiment 1, the horizontal heights of the ends 23 of the separating fingers are all the same. When the ends 23 of the separating fingers contact the release bearing, the contact surface is more uniform, reducing the damage to the ends 23 of the separating fingers.

[0028] As Figure 3 shown, in Embodiment 5 of the present utility model, a separable diaphragm spring, on the basis of Embodiment 4, a reinforcing rib 22 is provided at the connection between the tail 21 of the separating finger and the inclined surface 25. The force-bearing strength of the separating finger 1 is increased, preventing the separating finger 1 from breaking.

[0029] 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 principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A separable diaphragm spring, characterized in that, It includes separating fingers (2) and a clamping groove ring (1). The separating fingers (2) include a separating finger tail part (21) and a separating finger end part (23) connected by an inclined surface (25). The inner side of the clamping groove ring (1) is an annular channel, and a plurality of fixing ribs (11) are welded in a circumferential array inside the channel. Two adjacent fixing ribs (11) form a clamping groove (12), and each separating finger (2) is clamped in each clamping groove (12) to form a diaphragm spring.

2. The separable diaphragm spring according to claim 1, wherein the arc length of the bottom of the clamping groove (12) is equal to the arc length of the separating finger tail part (21), the two sides of the clamping groove (12) are parallel to each other, and the two sides of the separating finger tail part (21) are also parallel to each other.

3. The separable diaphragm spring according to claim 1, wherein curved surfaces (24) are provided on both sides of the separating finger tail part (21) outside the clamping groove ring (1), and the curved surfaces (24) of two adjacent separating fingers (2) are spliced to form a hole window (3).

4. The separable diaphragm spring according to claim 1, wherein the horizontal heights of the separating finger end parts (23) are all the same.

5. The separable diaphragm spring according to claim 4, wherein a reinforcing rib (22) is provided at the connection between the separating finger tail part (21) and the inclined surface (25).

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