3 results about "Stress induction" patented technology

The utility model relates to the technical field of monitoring devices, in particular to a pipeline stress induction monitoring device which comprises two hoops, the two hoops are connected in a hinged mode, the outer side walls of the two hoops are fixedly connected with installation plates, and the inner side walls of the installation plates are rotationally connected with two-way lead screws through bearings. Two hoops are clamped on the outer side wall of a to-be-monitored pipeline, a motor is started to drive a driving shaft and a driving gear to rotate, a driven gear in meshed connection with the driving gear drives a two-way screw rod to rotate, and two sections of external threads on the two-way screw rod drive two nut plates to get away from or get close to each other; the nut plate drives the electric push rod and the stress sensor to move, the extending length of the electric push rod is adjusted, the stress sensor is driven to be close to the outer side wall of the pipeline, and stress monitoring is conducted on the pipeline. Therefore, the representativeness of the data reflected by the stress sensor is stronger, and the collected data is more comprehensive.

The utility model discloses a pressure plate balancing device for a cutting end, relates to the technical field of cutting machine elements, and aims to solve the problems that the existing balancing structure outside the cutting end of a cutting machine only needs to be adjusted during maintenance, and the sudden inclination of a pressure plate in the use process cannot be known in time. The connecting blocks are installed on the lower side of the inner wall of the side blocking mechanism, the two connecting blocks and the lower side of the inner wall of the side blocking mechanism are integrally formed, stress induction pieces are arranged on the upper end faces of the two connecting blocks, one sides of the stress induction pieces are fixedly connected with the upper end faces of the connecting blocks, and the other sides of the stress induction pieces are fixedly connected with the lower end faces of the connecting blocks. And rotating wheels are arranged on the two sides of the inner wall of the side blocking mechanism, the two rotating wheels are rotationally connected with the side blocking mechanism through connecting rotating shafts, and the two connecting rotating shafts are arranged.

The application discloses a method for improving the contact wear resistance of a rail by refining the pearlite lamellar spacing to 260-320 nm through a staged temperature control isothermal heat treatment process combined with micro stress induction, thereby significantly improving the wear resistance and fatigue resistance while ensuring high strength. The rolling contact wear test results under a load of 20-40 N show that the Brinell hardness of the rail sample prepared by the process is increased by about 16%, the average friction coefficient is reduced by 9.8%, the wear volume is reduced by about 24.5%, and the crack initiation life is increased by about 1.4 times. The method has stable process, accurate control, is suitable for batch manufacturing of U75V heavy load and high speed rail, and has a wide industrial application prospect.