Large-bearing-capacity high-rigidity double-cone-roller rolling guide rail pair

Abstract

The invention discloses a large-bearing-capacity high-rigidity double-cone-roller rolling guide rail pair which is mainly composed of a guide rail, a sliding block and rolling bodies. Each rolling body is a double-cone roller. Each double-cone roller is a single-double-cone roller or a multi-double-cone roller, wherein the single-double-cone roller is a double-cone-shaped rolling body with the large middle and two small ends. The rolling bodies of the double-cone-roller rolling guide rail pair are double-cone rollers, the double-cone rollers are clamped by V-shaped groove raceways of the guide rail and the sliding block to form bidirectional four-line contact, and the double-cone-roller rolling guide rail pair has the advantages of being large in bearing capacity, high in rigidity, high in impact resistance, good in stability, long in service life, light in weight, small in size, high in efficiency, high in precision and the like. Under the same size, compared with a ball linear guide rail pair, the double-cone-roller guide rail pair has the advantages that the dynamic load is increased by about two times, the static load is increased by about five times, and the limitation moving speed is increased by about two times, and the double-cone-roller guide rail pair can replace existing ball, cylinder, crossed roller and other series of rolling guide rail pairs.

Description

technical field [0001] The invention relates to the field of rolling guide rails, in particular to a double-tapered roller rolling guide rail pair with large load and high rigidity. Background technique [0002] At present, the rolling elements used in existing rolling guide rail pairs are usually balls or rollers, which are widely used and mature in technology. [0003] However, the balls, rollers and raceways of the existing rolling guides are basically in double-point or double-line contact. Usually, four rows of rolling elements are required to withstand the compound force from multiple directions, and the bearing capacity is small, the rigidity is low, and the impact resistance is low. Weaker capability, poorer stability, shorter lifespan, heavier weight, larger volume, and lower precision. Contents of the invention [0004] The purpose of the present invention is to provide a double-tapered roller guideway pair with large load and high rigidity. Rolling elements in...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a double-tapered roller guideway pair with large load and high rigidity. Rolling elements in a row can bear the compound force from multiple directions, and the bearing capacity is small, the rigidity is low, the impact resistance is weak, the stability is poor, the life is short, the weight is heavy, the volume is large, and the precision is low. technical problem

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