Dynamic tension acquisition unit of automobile engine belt

Abstract

The invention relates to a dynamic tension acquisition unit of an automobile engine belt. The dynamic tension acquisition unit of the automobile engine belt is characterized by comprising a positioning shaft and a bearing, wherein a rectangular groove is formed in the positioning shaft, a retaining side is arranged at one end of the positioning shaft, and a press plate is arranged at the other end of the positioning shaft. The positioning shaft is movably sleeved with a bearing inner ring, and an axial gap is reserved between the end face of the bearing inner ring and the press plate. A pressure sensor is arranged in the rectangular groove, the sensor press plate is arranged between the pressure sensor and the bearing inner ring in an abutting mode, and the contact face between the sensor press plate and the bearing inner ring is an arc surface matched with the bearing inner ring. A belt wheel is embedded into a bearing outer ring through injection molding. When the dynamic tension acquisition unit is used, the belt wheel is attached to the belt, and the pressure sensor is located on the angular bisector of a belt contact. The dynamic tension acquisition unit is simple and compact in structure, low in manufacturing cost, convenient to operate and capable of detecting and acquiring the dynamic tension of the belt in real time, preventing belt breakage caused by too large dynamic tension or belt slippage caused by too small dynamic tension and providing data for belt wheel train optimization design.

Description

technical field [0001] The invention relates to a device for measuring belt tension, in particular to an acquisition unit for the dynamic tension of an automobile engine belt. Background technique [0002] For the tension detection of the transmission belt, generally only the detection instrument can be used to detect the belt tension in the static state, that is, only the static tension can be detected, such as the tension of the car engine belt, and the belt tension can only be detected in the static state, and use The automatic tensioner maintains the tension of the belt and absorbs vibration in the transmission state. However, in the transmission state of the belt, the dynamic tension of the belt cannot be detected and collected in real time, so it is difficult to prevent the belt from breaking due to excessive dynamic tension. The dynamic tension is too small and the belt slips. Contents of the invention [0003] In view of the above problems, the applicant has made ...

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Problems solved by technology

[0002] For the detection of the tension of the transmission belt, the detection instrument can only be used to detect the belt tension in the static state, that is, only the static tension can be detected, such as the tension of the car engine belt, and the belt tension can only be detected in the static state. The automatic tensioner maintains the tension of the belt and absorbs vibration in the transmission state. However, in the transmission state of the belt, it is impossible to detect and collect the dynamic tension of the belt in real time, so it is difficult to prevent the belt from being broken and damaged due to excessive dynamic tension. The dynamic tension is too small and the belt slips

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