Steel chained pin roller holder used for pin roller linear guide rail

Abstract

The invention discloses a steel chained pin roller holder used for a pin roller linear guide rail. The steel chained pin roller holder comprises a chained base plate. Multiple holder units are arranged on the chained base plate and are arranged at equal intervals in the extending direction of the chained base plate. Each holder unit is composed of two single holders oppositely arranged, wherein apin roller containing area is formed between the two single holders oppositely arranged in a matched manner. Each single holder is provided with an upper supporting claw, a middle supporting claw anda lower supporting claw, and the upper supporting claw, the middle supporting claw and the lower supporting claw are in an arc shape matched with the outer surface of a pin roller. By means of the scheme, the positioning precision can be high, and meanwhile the rotating flexibility is good; and an elastic steel plate is adopted as the chained base plate, the use strength is high, flexibility and elasticity are good, friction force is smaller, the phenomenon that pin rollers are stuck due to bending of a traditional holder is avoided, and meanwhile the problems that a nylon holder is not resistant to wear and early fatigue fracture is avoided.

Description

technical field [0001] The invention relates to the technical field of cages, in particular to a steel chain roller cage for a roller linear guide. Background technique [0002] At present, roller linear guides are usually composed of guide rails, sliders, rolling elements, return devices, cages and other components. Its working principle is to realize the linear motion of the rolling linear guide pair by rolling the rolling body in the raceway of the guide rail and the slider. Since the outer cylindrical surfaces of adjacent rollers move in opposite directions, in order to avoid direct friction, a cage that partially wraps the rolling elements is usually used and moves accordingly to isolate the rolling elements and keep a certain distance between the rolling elements to avoid two The rolling elements are in contact with each other, and the cage usually guides the rolling elements and their normal movement between their guide rails and sliders. The cage is one of the main...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the unnecessary impact and friction of the rollers on the ball pocket caused by the improper size of the ball pocket in the existing prior art; and the problems of the rollers being stuck, falling off, and broken caused by the nylon cage, the present invention Provides a steel chain roller cage for roller linear guides to achieve the purpose of ensuring high positioning accuracy and good rotation flexibility, and avoids dimensional changes caused by the shrinkage of the nylon cage, and the nylon cage does not Wear resistance, early fatigue and easy fracture

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