509 results about "Friction test" patented technology

The invention discloses an impact friction test system for a winding hoisting rope of a kilometer deep shaft. The system comprises a rack, wherein a roller is arranged at the left end of the rack; the roller is erected in a bearing seat on the rack through a roller center shaft; the roller center shaft is connected with a variable-speed motor through a torque rotational speed meter; a thrust oil cylinder is horizontally arranged at the right end of the rack and is arranged on the same height position as the roller center shaft; the thrust oil cylinder is connected with a friction wheel through a hinge pin; the centroid of the friction wheel is at the same height as the position of the thrust oil cylinder; the two sides of the friction wheel are fixed on a movable support; the movable support is erected on a guide rail of the rack; and the wire rope is wound on the roller by two circles in parallel and is wound on the friction wheel by one circle. The system can be used for simulating the working condition of impact friction of the winding hoisting rope of the kilometer deep shaft, so that the tribological property of the wire rope in the conditions of different rotational speeds, accelerations, impact speeds and specific contact pressures can be studied. The system disclosed by the invention has the advantages of simple and compact structure, simple method, relatively low cost and outstanding effect.

The invention discloses a wobble bearing type friction test device and method. The wobble bearing type friction test device comprises a base frame, a fixing tooling, a driving part, a pressurizing part and a control part, wherein two shaft rod supports are arranged on the base frame; the fixing tooling is used for assembling and fixing a shaft sleeve part and a shaft rod part to be tested; the driving part is used for driving the shaft rod part to do periodic direction-changing rotation in the shaft sleeve part, and the driving part is provided with a torque sensor for detecting the torque acted on the shaft rod part; the pressurizing part is arranged on the base frame and used for exerting pressure on the fixing tooling, and the pressurizing part is provided with a pressure sensor for detecting the pressure exerted on the fixing tooling; and the control part is connected with the pressure sensor and the torque sensor, and used for receiving detection data of the pressure sensor and the torque sensor and performing arrangement and calculation. According to the testing device and method disclosed by the invention, a friction test can be performed on the shaft sleeve and the shaft rod parts so as to guide practices and production.