Radial spring expansion device

Abstract

The invention provides a radial spring expansion device and belongs to the technical field of transmission compensation. The radial spring expansion device comprises a base, a supporting base, an adjusting spring, a sliding base and two guide rails. The supporting base is a U-shaped piece. The bottom of the supporting base is provided with a waist-shaped hole. The supporting base passes a bolt and is fixed to the base through the waist-shaped hole of the supporting base. The two ends of the two guide rails are fixed to the two side walls of the supporting base. The two guide rails are parallel to each other. The sliding base is matched with the guide rails. The length direction of the waist-shaped hole is parallel to the axial direction of the guide rails. One of the side walls of the supporting base is provided with a spring support. One end of the adjusting spring is fixed to the spring support, and the other end of the adjusting spring is fixed to the sliding base. The top of the sliding base is fixedly connected with a supporting shaft. The supporting shaft is connected with a belt wheel through a bearing. The radial spring expansion device is composed of the spring, the guide rails, a mechanical limiting part and the supporting base, high in safety and especially has the advantages of the oil pressure mode and the advantages of the mechanical mode at the same time, the requirement for the installation position is low, the occupied space is small, and the radial spring expansion device is suitable for various belt transmission expansion mechanisms, simple in structure and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of transmission compensation, and in particular relates to the technical field of manufacturing a spring tensioner which compensates plastic deformation by generating displacement through elastic force and eliminates damage to a motion system caused by sudden torque changes. Background technique [0002] The tensioner acts on the timing belt or the timing chain of the engine to guide and tighten it so that it is always in a tight state. Generally divided into pressure and mechanical methods, they can automatically adjust the tension of the timing belt and timing chain. [0003] At present, the domestic mechanical tensioner generates pressure through the circumferential rotation of the spring to achieve the tightening effect. It has a certain automatic adjustment function and the tightening torque is small; the pressure tensioner generates radial movement through air pressure or hydraulic pressure to achieve ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of existing tensioners, the present invention provides a radial spring tensioner

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