Device for testing friction force of hydraulic cylinder in hydraulic equipment and testing method thereof

Abstract

The invention discloses a device for testing friction force of a hydraulic cylinder in hydraulic equipment and a testing method thereof, and relates to the technical field of hydraulic cylinder detection. The problem that it is inconvenient for workers to quickly align and fix a piston rod of a loading hydraulic cylinder and a piston rod of a next to-be-tested hydraulic cylinder is solved. The device specifically comprises a supporting plate connected between a set of supporting blocks in a sliding manner, connecting plates are fixed to the outer walls of the corresponding sides of the supporting blocks, and at least two electric conveying plates are arranged at the tops of the connecting plates; and the specific testing method of the device comprises the steps that a worker pushes sliding supporting rods to adjust the distance between the two electric conveying plates, the sliding supporting rods are fixed to the connecting plates through screws, and the hydraulic cylinder to be tested is placed on the electric conveying plates. Through the arrangement of a pull rod, the supporting plates and sliding blocks, an inserting frame can be fixed into an inserting guide plate through tools such as pins, and therefore rapid alignment and fixation between a second piston rod and a first piston rod are completed.

Description

technical field [0001] The invention relates to the technical field of hydraulic cylinder detection, in particular to a hydraulic cylinder friction testing device in hydraulic equipment and a testing method thereof. Background technique [0002] The hydraulic cylinder includes a cylinder body and a piston. The piston is slidably installed in the cylinder body. The oil on both sides of the piston realizes the extension and retraction of the piston to drive the equipment connected to the piston rod. In order to ensure the quality of the hydraulic cylinder, a friction test is required before it leaves the factory to verify whether the friction between the piston rod and the inner wall of the cylinder meets the standard. [0003] After searching, the Chinese patent application number is CN201610543883.X, which discloses a hydraulic cylinder friction test device, including a bracket, a loading hydraulic cylinder, a displacement sensor, a tension pressure sensor and earrings, and ...

AI Technical Summary

Problems solved by technology

[0003] After searching, the Chinese patent application number is CN201610543883.X, which discloses a hydraulic cylinder friction test device, including a bracket, a loading hydraulic cylinder, a displacement sensor, a tension pressure sensor and earrings, and the support legs on the bottom surface of the bracket are horizontally stable Placed on the ground, a loading hydraulic cylinder is vertically installed in the middle of the bracket, the piston rod of the loading hydraulic cylinder extends downward to the bottom of the bracket, a tension pressure sensor is installed at the lower end of the piston rod, and an earring is installed at the lower end of the tension pressure sensor, but The above solution needs to recalibrate and align the piston rod of the loading hydraulic cylinder and the piston rod of the next hydraulic cylinder to be tested for each detection, so it is inconvenient for the staff to connect the piston rod of the loading hydraulic cylinder and the next hydraulic cylinder to be tested. The problem of fast alignment and fixing of the piston rod of the cylinder

Images