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

A technology of test bench and hydraulic cylinder, which is applied in the testing of fluid pressure actuation system, fluid pressure actuation device, mechanical equipment, etc. Adjustable effects

Inactive Publication Date: 2017-05-31
龙工(上海)液压有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment

[0026] Such as Figure 1-4 As shown, it is a multi-stage hydraulic cylinder simulated working condition test bench provided by the present invention, which particularly includes a simulated working condition running bench 1, and the simulated working condition running bench 1 includes a fixed frame 1-1 and a movable frame 1-2, the fixed frame 1-1 is movably connected with one end of the movable frame 1-2, and the movable frame 1-2 is provided with a cylinder 1-3 near the end, and the movable end of the cylinder 1-3 passes through the movable frame 1-2 is fixedly connected with the fixed frame 1-1; the other end of the fixed frame 1-1 and the movable frame 1-2 are respectively provided with an adjustment frame 2 for fixing the multi-stage hydraulic cylinder, and the end of the movable frame 1-2 Adjustment frame fixing seat 1-4 is provided at the top, and a plurality of adjustment frame mounting holes 1-5 are provided on the adjustment frame fixing seat 1-4. The adjustment fram...

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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...

Claims

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Application Information

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IPC IPC(8): F15B19/00
CPCF15B19/007
Inventor 武锦平于杰丘超刘耀田雪峰周振兴
Owner 龙工(上海)液压有限公司
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