CN207661034U - A kind of novel diaphragm spring - Google Patents

Abstract

The utility model relates to a novel diaphragm spring, which comprises a spring body. A mounting hole is arranged in the center of the spring body. The mounting hole extends around to form a first radial slot, a plurality of second radial slots and a plurality of first radial slots. Three radial slots, the first radial slot is symmetrically provided with two first stress holes at the end away from the installation hole, the second radial slot and the third radial slot are provided at the end far away from the installation hole The second stress hole; between the adjacent first radial slot and the second radial slot, between two adjacent second radial slots, between the adjacent second radial slot and the third radial slot A plurality of separation fingers are formed between the grooves; the third radial slot extends toward the separation fingers on both sides to form a bolt hole, and the radial centerline of the bolt hole coincides with the radial centerline of the third radial groove . The beneficial effect of the utility model is that: by setting the first radial slot, the interference between the separation fork and the separation finger is reduced, so that the utility model is suitable for an automobile clutch with a double-mass flywheel structure.

Description

A New Diaphragm Spring

technical field

The utility model relates to the technical field of diaphragm springs, in particular to a novel diaphragm spring.

Background technique

The diaphragm spring is an important part of the clutch assembly. The clutch assembly plays the role of transmitting the engine torque, but the engine and the vehicle transmission system have inherent resonance, resulting in greater noise and vibration. As people have higher and higher requirements for the driving comfort of mini-cars, in recent years, some mid-to-high-end cars have adopted a dual-mass flywheel structure that can comprehensively improve the noise and vibration of the drive train. This structure moves the torsional damper originally installed on the clutch driven disc assembly to the flywheel, and divides the flywheel into two parts: the first mass flywheel is directly installed on the crankshaft, which is equivalent to the original flywheel, and the clutch assembly (including cover and driven disc assembly, and the driven disc assembly has no damper) is refitted on the second mass flywheel, and the two are connected by a large-capacity torsional damper. When the clutch is engaged, the second mass flywheel is rigidly connected to the first shaft of the gearbox, which greatly reduces the moment of inertia of the driven part, which is very beneficial to shifting gears and improving the life of the synchronizer in the gearbox.

After the dual-mass flywheel structure is adopted, when the second-mass flywheel of the automobile engine is connected to the torsional shock absorber, the bolt must pass through the diaphragm spring to separate the fingers. In addition, because the axial space between the automobile engine and the transmission is too narrow, if the conventional Design, there is interference between the separation fork and the separation finger, so it is necessary to design a diaphragm spring suitable for the dual-mass flywheel structure.

Utility model content

The technical problem to be solved by the utility model is to provide a new type of diaphragm spring and its processing technology for the deficiencies of the above-mentioned prior art.

The technical scheme that the utility model solves the problems of the technologies described above is as follows:

A new type of diaphragm spring is provided, comprising a spring body, a mounting hole is arranged in the center of the spring body, and the mounting hole extends around to form a first radial slot, a plurality of second radial slots and a plurality of a third radial slot, the first radial slot is symmetrically provided with two first stress holes at one end away from the mounting hole, the second radial slot and the third radial slot The slots are provided with second stress holes at one end far away from the mounting hole; between adjacent first radial slots and second radial slots, between two adjacent second radial slots A plurality of separation fingers are formed between the grooves, adjacent to the second radial slot and the third radial slot; the third radial slot extends toward the separation fingers on both sides thereof A bolt circular hole is formed, and the radial centerline of the bolt circular hole coincides with the radial centerline of the third radial slot.

The beneficial effects of the utility model are: the utility model extends the bolt circular holes on the third radial slot to the direction of the separating fingers on both sides, so as to facilitate the installation of the bolts used for connecting the second mass flywheel and the torsional shock absorber; By setting the first radial slot, the interference between the separation fork and the separation finger is reduced, making it suitable for automobile clutches with a dual-mass flywheel structure, which can not only transmit engine power reliably, but also significantly reduce the noise and vibration in the environment.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, the width of the third radial slot is greater than the width of the second radial slot.

The beneficial effect of the above further solution is that it is convenient to open bolt holes on the third radial slot.

Further, the bolt circular hole is set close to the installation hole.

Further, the radial distance between the bolt circular hole and the installation hole ranges from 12mm to 38mm.

The beneficial effect of the above further solution is: the bolt circular hole is arranged close to the installation hole, reducing the impact on the strength of the diaphragm spring due to the bolt circular hole.

Further, the number of the bolt circular holes is five.

The beneficial effect of the above further solution is that the number of bolts used for connecting the second mass flywheel and the torsional shock absorber is the same, which facilitates installation.

Description of drawings

Fig. 1 is the structural representation of a kind of novel diaphragm spring of the utility model;

Fig. 2 is the side view of Fig. 1;

In the accompanying drawings, the names of the parts represented by each label are as follows:

1. Spring body, 11. Mounting hole, 12. First stress hole, 13. First radial slot, 14. Second radial slot, 15. Third radial slot, 16. Bolt round hole, 17. Separation finger, 18. Second stress hole.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

A new diaphragm spring provided by this embodiment will be described in detail below with reference to the accompanying drawings.

As shown in Figures 1 and 2, a new type of diaphragm spring includes a spring body 1, and a mounting hole 11 is provided at the center of the spring body 1, and the mounting hole 11 extends around to form a first radial opening. Slot 13, a plurality of second radial slots 14 and a plurality of third radial slots 15, the first radial slot 13 is symmetrically provided with two first stress holes at one end away from the installation hole 11 12. The second radial slot 14 and the third radial slot 15 are provided with a second stress hole 18 at the end away from the installation hole 11; adjacent to the first radial slot 13 and between the second radial slots 14, between two adjacent second radial slots 14, adjacent to the second radial slots 14 and the third radial slots 15 A plurality of separation fingers 17 are formed between them; the third radial slot 15 extends toward the separation fingers 17 on both sides to form a bolt hole 16, and the radial centerline of the bolt hole 16 is in line with the The radial centerlines of the third radial slots 15 coincide.

The width of the third radial slot 15 is greater than the width of the second radial slot 14 .

The quantity of the bolt circular holes 16 is five; the diameter of the bolt circular holes 16 is greater than the width of the third radial slot 15; The diameter of the bolts used for the connection of the device is the same and designed according to the standard size.

The bolt hole 16 is set close to the installation hole 11; the radial distance between the bolt hole 16 and the installation hole 11 is 12 mm to 38 mm. In this embodiment, the bolt hole 16 The radial distance from the mounting hole 11 is preferably 26mm.

Two second radial slots 14 are arranged between two adjacent third radial slots 15 .

The first radial slot 13 includes two adjacent second radial slots 14 communicating with each other, that is, the first radial slot 13 passes through the adjacent two second radial slots The separating fingers 17 between the grooves 14 are formed by digging away.

The above descriptions are only 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 in this utility model. within the scope of protection of utility models.

Claims (5)

1. a kind of novel diaphragm spring, it is characterised in that：Including spring body (1), it is equipped at the center of the spring body (1) Mounting hole (11), the mounting hole (11) extend to form first radially slotted (13), multiple second radially slotted (14) around Radially slotted (15) with multiple thirds, first radially slotted (13) are arranged in one end far from the mounting hole (11) Two the first stress holes (12), second radially slotted (14) and the third radially slotted (15) are far from the mounting hole (11) one end is equipped with the second stress hole (18)；Adjacent first radially slotted (13) and second radially slotted (14) Between, between two neighboring second radially slotted (14), adjacent second radially slotted (14) and the third it is radial Multiple separation fingers (17) are formed between fluting (15)；The separation finger (17) side of the third radially slotted (15) to its both sides To extending to form bolt circular hole (16), the diameter of the radial centre lines and the third radially slotted (15) of the bolt circular hole (16) It is overlapped to center line.

2. a kind of novel diaphragm spring according to claim 1, it is characterised in that：The width of the third radially slotted (15) The width of (14) radially slotted more than described second.

3. a kind of novel diaphragm spring according to claim 1, it is characterised in that：The bolt circular hole (16) is close to the peace Fill hole (11) setting.

4. a kind of novel diaphragm spring according to claim 3, it is characterised in that：The bolt circular hole (16) and the installation Radial distance ranging from 12mm to 38mm between hole (11).

5. a kind of novel diaphragm spring according to claim 3, it is characterised in that：The quantity of the bolt circular hole (16) is 5 It is a.