Wide-temperature-range gap compensation roller assembly with guiding, damping and supporting effects

Abstract

The invention discloses a wide-temperature-range gap compensation roller assembly with guiding, damping and supporting effects. The roller assembly comprises a positioning roller assembly and a pressing roller assembly which are installed on the two sides of a supporting component and oppositely abut against the supporting component; the pressing roller assembly comprises a jacking wheel set and afixed guide assembly which are connected in a sliding mode through a guide sliding rod assembly, the fixed guide assembly is a fixed end, the jacking wheel set is a free end, and the jacking wheel set jacks the supporting component through a disc spring set installed in the circumferential direction of a guide screw; and the structure of the positioning roller assembly is similar to that of the pressing roller assembly, and the difference lies in that the disc spring set is replaced with a supporting guide sliding rod which is fixedly arranged on the guide screw in a sleeved mode and limits the moving distance of the guide screw. The roller assembly solves the problems of mechanism movement at low temperature and movement gap compensation, movement guide support and vibration reduction ofthe mechanism due to wide temperature range change, and ensures the guide precision of the mechanism in the movement process.

Description

technical field [0001] The invention belongs to the technical field of wind tunnel equipment, and in particular relates to a gap compensation roller assembly in a wide temperature range with the function of guiding, damping and supporting. Background technique [0002] In the process of mechanical engineering, guiding devices are often used during the movement of mechanisms. Conventional guiding devices are divided into linear guides and arc guides according to their functions, and sliding friction guides, rolling friction guides, and elastic friction guides according to their friction properties. type. Among them, the more widely used guide rail uses balls as the power transmission interface between the guide rail and the slider, which can perform infinite rolling cycle movement, and the slider is limited on the guide rail, so that the load device can move along the guide rail with high speed and high precision. For reciprocating linear motion. If the movement accuracy is...

AI Technical Summary

Problems solved by technology

[0003] However, in some special occasions, such as a certain medium, the mechanism not only has the characteristics of fast speed, large load, and high frequency of use, but also works in a wide temperature range that continuously changes between ultra-low temperature and normal temperature. The structure caused by a large temperature difference Dimensional changes have a greater impact on the transmission accuracy and performance of the mechanism

Conventional guide devices, such as guide rails with balls as the power transmission interface, cannot be effectively lubricated at low temperatures, and are prone to jamming and seizure; conventional roller guide devices are fixed structures, which cannot meet the needs of the mechanism in uneven rise and fall. Gap compensation function in case of cooling

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