Curved-groove ball bearing

Abstract

The invention relates to an annular ball bearing device, belongs to the field of general machinery parts, and discloses an annular ball bearing with curved arc grooves, which aims at overcoming the defect of incapability of axial displacement of existing bearings. As for the curved-groove ball bearing, straight arc grooves of a traditional ball bearing are changed into the S-shaped curved arc grooves, so that the displacement of reciprocal rectilinear motion of the bearing can be realized while the bearing rotates. According to the technical scheme, straight grooves of inner and outer rings of an existing bearing are changed into curved grooves which are in full symmetry in shape, the number of peaks and valleys of the curved grooves is the same as that of steel balls or is an integer multiple of that of steel balls, so that during the rotating process of the inner and outer rings, a shaft does periodical reciprocal rectilinear motion while rotating. The curved-groove ball bearing disclosed by the invention has the advantages of being capable of changing rotary motion into rectilinear motion, simplifying the mechanical structure of a rubbing roll and being simple in structure and small in size.

Description

technical field [0001] The invention relates to a centripetal ball bearing device, which belongs to the field of general mechanical parts, in particular to a curved groove ball bearing. Background technique [0002] General-purpose bearings are general-purpose mechanical parts used to position shaft parts so that they can rotate flexibly but cannot produce axial displacement. But for the mechanism that needs to be capable of axial displacement while rotating, such as the movement of squeezing and rubbing rollers, the use of universal bearings will make the mechanism very complicated. [0003] In order to simplify the mechanical structure of the extrusion rubbing roller, and to change the rotary motion into a reciprocating linear motion in a simpler way, the invention discloses a curved groove ball bearing. Contents of the invention [0004] The technical solution for realizing the above invention is to change the original linear grooves of the inner and outer rings of the...

AI Technical Summary

Problems solved by technology

[0002] General-purpose bearings are general-purpose mechanical parts used to locate shaft parts so that they can rotate flexibly but cannot produce axial displacement

But for the mechanism that needs to be capable of axial displacement while rotating, such as the movement of squeezing and rubbing rollers, the use of general bearings will make the mechanism very complicated

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