Rolling ball retention chain capable of torsional operation and linear movement mechanism composed of same

Abstract

The invention discloses a rolling element retention chain capable of torsional operation and a linear movement mechanism composed of the same. The rolling element retention chain is provided with a flat long strip; holes arranged in an axial direction are disposed on the strip; separation sheets are formed between holes to separate two holes, and is combined with upper and lower separation blocks; a groove is disposed between the upper separation block and the separation sheet and between the lower separation block and the separation sheet; the grooves are mutually staggered on different sides, such as the left side and the right side, of the upper and lower separation blocks; therefore, when the rolling element runs in a circulation channel which is not perpendicular to the retention chain surface, the separation blocks of the retention chain generate torsional deformation so as to overcome bending resistance.

Description

technical field [0001] The invention relates to a rolling element retaining chain capable of twisting operation and a linear motion mechanism composed thereof. Background technique [0002] The current linear motion mechanism has a moving part and an axially extending track part. The moving part and the track part each provide at least one row of corresponding tracks. There is a row of rolling bodies between the tracks that are in contact with the track and roll on the track. The moving part And provide a return linear channel and two return channels for each row of corresponding tracks. The return channel connects the return linear channel and the end surface entrance and exit of the track to form a circulation channel, so that the rolling elements can enter the return linear channel from the track area through the return channel. From the return linear channel and then enter the track area through the turning track, the rolling elements can circulate in the circulating cha...

AI Technical Summary

Problems solved by technology

[0006] Among them, the inventor of the present invention further found that although the ball chain proposed in the previous Taiwan Patent of Invention No. I273185 connects elastic bands at both ends of the elastic link, the structure of elastic link between the middle and the spacer makes the chain have a very high performance. The degree of freedom of torsional deformation, but because the connecting area between the spacer block and the elastic connecting strip is small, there will be doubts about insufficient strength under continuous reciprocating bending deformation work, and this structure is between the ball covering surface and the elastic connecting strip. If there is a gap formed between the balls, the covering surface of the chain will hold the balls and the effect of holding the balls is slightly poor, which makes the balls run unsmoothly.

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