Thrust ball bearing with screw

Abstract

The invention discloses a thrust ball bearing with a screw. The thrust ball bearing is mainly characterized in that the screw which is of an integrated structure and is used in cooperation with a threaded hole of a pin shaft of a thrust ball bearing with the pin shaft is arranged at the left end of the center line of a seat ring, and a hexagonal concave hole used in cooperation with an internal hexagonal wrench is formed in the right end of the screw; the outer diameter of an unthreaded shaft at the right end of the screw is in movable fit with a center hole of a shaft ring; an annular ring of an integrated structure is arranged at the radial outer end of the left end face of the seat ring, and a holder, a ball and the shaft ring are arranged in an inward concave hole of the annular ring; and the sum A1 of the thickness of the seat ring and the length of the annular ring is smaller than the sum B1 of the thicknesses, generated after assembly, of the seat ring, the ball and the shaft ring. The thrust ball bearing is used in cooperation with the thrust ball bearing with the pin shaft, convenience is provided for pin joint of scissor type products and connecting rod drive two-piece moving components, the pin joint clearance between the two-piece moving components can be adjusted, pin joint loosening of the two-piece moving components can be avoided, and the cooperation precision of the two-piece moving components and the use performance of the products can be improved.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a thrust ball bearing with a screw rod. The invention is especially suitable for the pin connection of scissors products and two moving parts of connecting rod transmission. Background technique [0002] The existing thrust ball bearings are widely used, and are mainly used in assembly parts carrying large axial force and large axial serial motion clearance, but there is a problem of single function. [0003] The existing scissors products and the pin connection structure of the two moving parts of the connecting rod drive have the problem that the gap between the two moving parts cannot be adjusted, resulting in imprecise cooperation between the two moving parts, which affects the performance of the product; the existing The pin connection structure of the product is fastened with nuts. When the product is used for a period of time, the nuts will loosen, resulting in an increa...

AI Technical Summary

Problems solved by technology

[0002] Existing thrust ball bearings have been widely used, mainly for bearing large axial forces and assembly parts with large axial series clearance, but there is a problem of single function

[0003] The existing scissors products and the pin connection structure of the two moving parts of the connecting rod drive have the problem that the gap between the two moving parts cannot be adjusted, resulting in imprecise cooperation between the two moving parts, which affects the performance of the product; the existing The pin connection structure of the product is fastened with nuts. When the product is used for a period of time, the nut will loosen, resulting in an increase in the gap between the two moving parts and imprecise cooperation, which will affect the performance of the product.

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