Single body separation finger type diaphragm spring

Abstract

The invention discloses a single body separation finger type diaphragm spring. A plurality of single body separation finger type units are combined into the integral disc-shaped diaphragm spring in amortise and tenon joint or buckle manner. The elastic force values of the multiple single body separation finger type units are the same or different, the single body separation finger type units different in elastic force value are arranged at intervals, and the outer edges of the disc-shaped diaphragm spring are located on the same diameter circle. The single body separation finger type diaphragm spring has the advantages that the spring force value is adjusted in a combined manner, the manufacturing technology requirement of the integral diaphragm spring is lowered, and the yield and the excellent rate are increased.

Description

technical field [0001] The invention relates to the field of core parts of an automobile clutch, in particular to a single separation finger diaphragm spring of a diaphragm spring clutch. Background technique [0002] The clutch is a key component connecting the engine and the gearbox in the car, and plays the role of clutch torque. The diaphragm spring is the core part of the clutch and provides the disengagement function. Clutch development is usually done on integral leaf diaphragm springs. However, the integral diaphragm spring has its fatal flaws. For example, the elasticity of the diaphragm during use will show a trend of first increasing and then decreasing with the increase of use time. The elastic force value is also difficult to control during the manufacturing process. Rework or scrap rates are relatively high. [0003] The patent number is CN2013208936684 utility model patent, which divides the diaphragm spring into two parts, the annular body and the independ...

AI Technical Summary

Problems solved by technology

However, in order to make the contact circle of the separation finger on the same plane, the matching accuracy of the connecting part is required to be high. With the increase of wear and tear, the matching accuracy is difficult to guarantee

[0004] The patent No. 2014204106227 is a utility model patent. A reinforcing layer is added to the disc spring body to increase the rigidity of the separating finger, but the structure is complicated, and the rigidity of the separating finger is simply strengthened, and its effect is equivalent to that of a reinforcing rib.

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