Test bed and method for simulated working condition of multistage hydraulic cylinder

Abstract

The invention discloses a test bed and method for the simulated working condition of a multistage hydraulic cylinder. The test bed comprises a simulated working condition operation bed body; and the simulated working condition operation bed body comprises a fixed frame and a movable frame, one end of the fixed frame is movably connected with one end of the movable frame, and the other end of the fixed frame and the other end of the movable frame are each provided with an adjusting frame for fixing the multistage hydraulic cylinder. The test method comprises the steps that the position of the adjusting frame on the movable frame and the positions of hinged seats on the two adjusting frames are adjusted according to the multistage hydraulic cylinder; four hinged shafts of the multistage hydraulic cylinder are installed into the hinged seats, a pressure measuring oil pipe is connected to the multistage hydraulic cylinder, and a hydraulic station is started for testing; and after testing is completed, an oil drain program is operated, the pressure measuring oil pipe is disassembled, and then, the multistage hydraulic cylinder can be dismounted. The test bed and method are designed according to the simulated working condition, disordered stage phenomena in the test process can be found totally, various requirements for the delivery test of the multistage hydraulic cylinder are met, and after testing is finished, hydraulic oil accumulated in the oil cylinder can be automatically and completely drained through control of a system.

Description

technical field [0001] The invention relates to a multi-stage hydraulic oil cylinder simulation working condition detection, test, test equipment and detection method of a dump truck, belonging to the technical field of mechanical processing and detection. Background technique [0002] During the actual use of dump truck multi-stage oil, as the cargo box tilts backward, the upper fulcrum of the oil cylinder will move backward, and the cylinder will tilt backward at the same time, and the sleeve protruding under the action of gravity will have a lateral force, The lateral force will increase the friction between the sleeve and the guide ring. If there is a machining error or an improper assembly fit gap, there may be a disordered phenomenon (the sleeve does not expand and contract in sequence). The conventional test device is a parallel cylinder. cannot be checked out. [0003] On the other hand, a multi-stage hydraulic cylinder is assembled from multiple sleeves, and the in...

AI Technical Summary

Problems solved by technology

[0004] What the present invention aims to solve is the problem that the existing multi-stage hydraulic cylinders of dump trucks cannot detect disorderly stages

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