3results about How to "Achieve self-lubricating effect" patented technology

This invention discloses a self-lubricating mechanism for a two-dimensional piston pump spatial cam, comprising a pump body and a cam assembly. The pump body includes a piston shaft and a pump housing, with an end cap containing an oil chamber at one end of the pump housing. The piston shaft has a first flow channel communicating with the oil chamber of the end cap. The cam assembly includes a sleeve and a cam and a roller shaft disposed within the sleeve. The roller shaft has a second flow channel communicating with the first flow channel and a third flow channel communicating with the second flow channel. The third flow channel radially penetrates the annular end face of the roller shaft. The pump housing also has a fourth flow channel communicating with the inner cavity of the sleeve, and the other end of the fourth flow channel is connected to an outlet pipe connected to the end cap. Oil is input through the inlet pipe of the end cap, flows through the first, second, and third flow channels, and then enters the friction pair between the bearing and the cam for lubrication. The lubricated oil is discharged from the outlet pipe through the fourth flow channel, forming a complete self-lubricating mechanism. The self-lubricating process of this application does not require additional oil supply power to achieve the self-lubricating effect of the spatial cam.

The utility model discloses a track and pulley assembly structure of an electric curtain, which relates to the technical field of electric curtains and comprises a track body and a pulley piece, a pair of guide rails is mounted in the track body, and the pulley piece comprises a moving shaft arranged in the track body. Rollers matched with the guide rails are rotationally mounted at the two ends of the moving shaft, a sleeve shell fixedly sleeves the middle of the moving shaft, and a hook is fixedly connected to the lower end of the sleeve shell; lubricating mechanisms are arranged on the two sides of the top of the guide rail and comprise oil boxes fixedly installed on the top of the guide rail. The lubricating mechanism is arranged at the top of the guide rail, the oil control piece is triggered through rolling of the roller, lubricating oil can be automatically released into the guide rail, the self-lubricating effect on the guide rail and the roller is achieved every time the curtain is opened and closed, friction and abrasion between the guide rail and the roller are effectively reduced, and the opening and closing smoothness of the curtain is guaranteed; and the service life of equipment is prolonged.

The utility model discloses a kind of small passenger car universal transmission joint three-pin shaft, including three-pin frame and the pin shaft being set on the outer wall of three-pin frame, the shaft neck position of three-pin frame corresponding pin shaft is provided with multi-stage boss, the end of pin shaft is provided with blind hole, bearing ring is installed to the outside of pin shaft;The surface of each group pin shaft and the inner wall of bearing ring are respectively provided with central raceway and two side edge raceways along circumference direction.The utility model is set up multi-stage boss, reduces stress concentration, improves connection structure strength, increases fatigue life;Blind hole can be set, and weight can be reduced, so as to reduce abrasion;Bearing ring adopts integrated bearing design, structure is simpler, the number of parts composition is less, improve reliability, and reduce cost;The design of net pattern lubricating oil flow channel is favorable to lubricating oil flow, realizes self-lubricating effect, improves lubricating effect by, further reduce abrasion to improve life;Overall reliability can be improved.