Conical ring friction coefficient detection device and method of synchronizer

Abstract

The invention provides a conical ring friction coefficient detection device and method of a synchronizer, and aims at filling blank in research on synchronizer friction material in the industry, and providing theoretical data for designers. The detection device comprises a driver, an inertia body, an electromagnetic clutch, a hydraulic power unit, a driving shaft, a rotating shaft, a driven shaft,a rotating speed sensor, a torque sensor, a force sensor and a displacement sensor; the driving shaft, the rotating shaft and the driven shaft are arranged coaxially; the electromagnetic clutch is arranged between the driving shaft and the rotating shaft; the driver drives the inertia body to rotate via a power transmission assembly, and the inertia body is arranged on the driving shaft; the electromagnetic clutch drives the driving end to rotate via the rotating shaft; the driven end is arranged in the end close to the driving end of the driven shaft, and is driven by the hydraulic power device to make axial movement; the rotating speed sensor is arranged on the rotating shaft; one end of the displacement sensor is connected with the driven shaft, and the other end of the displacement sensor is fixedly arranged; and the torque sensor and force sensor are arranged on the rotating shaft or driven shaft.

Description

technical field [0001] The invention belongs to the technical equipment of an automobile component test bench, and in particular relates to a detection device and a detection method for the friction coefficient of a synchronizer cone ring. Background technique [0002] The synchronizer is one of the most important components in the gearbox of cars and trucks. The evaluation of the synchronizer is mainly reflected in the synchronization performance index. In the synchronizer system, the efficient friction layer will play a decisive role in improving the performance of the synchronizer The friction coefficient between the friction layers is an important indicator to determine the performance of the synchronizer. [0003] At present, there is no special test equipment for testing the friction coefficient of synchronizers in China. Most manufacturers use friction material test blocks to measure the friction coefficient, and cannot measure the friction coefficient of the synchron...

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Problems solved by technology

[0003] At present, there is no special test equipment for testing the friction coefficient of synchronizers in China. Most manufacturers use friction material test blocks to measure the friction coefficient, and cannot measure the friction coefficient of the synchronizer cone ring. The measurement results have certain reference significance, but It is not accurate; while foreign equipment of this type has complex structures and high production costs

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