Elastic force detection device for automobile clutch coil group

Abstract

The invention discloses an elastic force detection device for an automobile clutch spring coil group, the device comprises a base plate (11), a positioning device for placing a spring coil group (2) or an automobile clutch comprising the spring coil group (2), at least one pedestal assembly, a driving device and a pressure device comprising a pressure sensor (15); the lower end of the pedestal assembly is connected with the base plate (11), the positioning device is connected with the base plate (11) and arranged below the pedestal assembly, and the driving device is connected with the pedestal assembly for driving the pressure device to vertically move and apply pressure on the spring coil group (2). According to the invention, the device adopts the above structure, the pressure device driven by the driving device applies the downward pressure to the whole spring coil group, the pressure sensor contained in the pressure device can directly feed back pressure values measured under different compression amounts to a controller, so that the elastic force and compression amount of the whole spring coil group can be simply and directly measured.

Description

technical field [0001] The invention relates to the technical field of fixtures, in particular to an elastic force detection device of an automobile clutch spring coil group. Background technique [0002] The automobile clutch is located in the flywheel housing between the automobile engine and the gearbox, and the clutch assembly is fixed on the rear plane of the flywheel with screws, and the output shaft of the clutch is the input shaft of the gearbox. At present, what is widely used in automobiles is a spring-loaded friction clutch. The engine flywheel is the active part of the clutch. ) is connected, and the compression spring presses the driven plate on the end face of the flywheel, the engine torque is transmitted to the driven plate by the friction between the flywheel and the contact surface of the driven plate, and then passes through the driven shaft and a series of components in the drive train to the drive wheels. Because the car needs to keep the power transmi...

AI Technical Summary

Problems solved by technology

But, the shortcoming that the spring elastic detection device of this structure exists is:

[0004] 1) Since the device only detects a single spring, and the spring coil group consisting of multiple springs needs to be detected in the spring force detection of the coil group of the automobile clutch, it is not suitable for application in automobile clutches The full coil spring group;

[0005] 2) The reading of the spring compression displacement can only be obtained through multiple intermediate steps. A stepper motor is required to detect the rotation angle of the pre-tightening nut, and a pitch gauge is required to measure the pitch of the pre-tightening screw, and then the spring is calculated through the data acquisition card. Compression displacement; therefore, the compression displacement cannot be directly obtained, and it needs to be calculated after several processes, and the detection is not intuitive and accurate;

[0006] 3) The operation of the device is cumbersome. It is necessary to adjust the spring preload nut before the test. It is necessary to ensure that the second lock nut is in close contact with the inner wall of the front end cover. Therefore, errors are easy to accumulate during the measurement process, thereby affecting the test results;

Images