2results about How to "Increase meshing force" patented technology

The utility model discloses a threaded sleeve with an expansion function, relates to the technical field of threaded sleeves, and aims to solve the problems that threaded connection between the threaded sleeve and a base material possibly becomes loose gradually and even the threaded sleeve falls off from a prefabricated hole when the threaded sleeve is affected by factors such as vibration, impact load, severe temperature change or material creep for a long time. Comprising a screw sleeve body, the screw sleeve body comprises a self-tapping section and an expansion section, the top surface of the self-tapping section is provided with the expansion section for preventing falling and loosening, and the outer wall of the expansion section is provided with a plurality of groups of notches for assisting the expansion section to change the radius; according to the design of the expansion section, the inner groove in the inner wall and the notches in the screw flights are matched with the effect of a subsequent installation tool, radial expansion of the expansion section can be achieved, and the expansion section is in tight interference fit with the inner wall of a screw hole after the thread sleeve body is completely installed in place.

This invention relates to the field of bearing ring heat treatment equipment, specifically disclosing a salt cleaning machine and bearing ring heat treatment equipment, comprising: a housing, a base inside the housing, a conveying mechanism on the base, the conveying mechanism including a transmission chain, a lower cleaning pipe assembly on the lower part of the side wall of the housing, multiple spaced support assemblies mounted on the transmission chain, the lower cleaning pipe assembly including a lower cleaning pipe located below the transmission chain, multiple self-adjusting mechanisms on the lower cleaning pipe, each self-adjusting mechanism including a movable plate that divides the lower cleaning pipe into independent upper and lower cavities, a rotating wheel at the lower part of the movable plate in contact with the movable plate, a transmission shaft at the center of the rotating wheel, a lever at the end of the transmission shaft, a first through hole at the end of the movable plate, a first nozzle on the lower cleaning pipe located at the first through hole, and a horizontal plate above the end of the movable plate with a second through hole. This invention reduces cleaning fluid waste and improves cleaning efficiency.