Ring Power Flow Fatigue Testing Machine
A fatigue testing machine and power flow technology, applied in the field of mechanical structure, can solve the problems of large occupied space, large energy consumption, energy consumption, etc., to save energy consumption, reduce pure input force, and simplify the fatigue testing device. Effect
Inactive Publication Date: 2015-10-28
SHENYANG JIANZHU UNIVERSITY
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Problems solved by technology
[0003] The fatigue life test benches currently in use use motors or cylinders to drive the test piece, and then use the output of the test piece to drive the set load to do work and consume energy
This method requires a relatively high-power drive device and load device, which consumes a lot of energy and takes up a lot of space for the equipment.
Method used
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[0012] The test machine system is mainly composed of a booster cover 5, a test piece cylinder 1 and a fixture, a booster cylinder 7, a pressure regulating cylinder 10 and a bench. The original driving device and the booster cylinder are connected together to realize the function of jointly driving the test piece. When designing, according to the test piece, calculate the booster device, and adjust the pressure regulating load weight, so that the system can be under the set constant load.
[0013] After the position and clearance of the test bench are adjusted, the original driving device 16 drives the ball screw to push the motive force push rod 13 forward, and pushes the piston of the cylinder 1 of the test piece to move, and the oil in the rodless cavity of the cylinder 1 of the test piece is squeezed. Pressure and enter the high pressure circulation pipe 4, below the set maximum pressure, the oil will enter the rodless cavity of the booster cylinder 7, push the piston forwa...
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The invention discloses an annular power flow fatigue testing machine, which relates to the field of the mechanical structure. The annular power flow fatigue testing machine comprises a motive power driving device, a to-be-tested oil cylinder, a boosting oil cylinder, a load and energy storage device and a rack, wherein the motive driving device is connected with one end of the boosting oil cylinder; a servo motor is connected with one end of a motive power push rod via a ball screw; a to-be-tested oil cylinder piston is pushed by the motive power push rod to enable oil liquid in a rodless cavity of the to-be-tested oil cylinder to be extruded; a high-pressure circulation tube is connected with one end of the to-be-tested oil cylinder; the oil liquid enters the rodless cavity of the boosting oil cylinder via the high-pressure circulation tube; a boosting cover is pushed by the piston of the boosting oil cylinder to advance; the piston of the to-be-tested oil cylinder is pushed by the push rod of the boosting cover; and an auxiliary load block and a pulley group are connected with a pressure-regulation oil cylinder. The output driving load force of a to-be-tested piece is used for driving the to-be-tested piece, so that energy which is originally wasted is used as driving force for the to-be-tested piece, most power is subjected to closed transmission, less power is consumed, and the pure outside input power is reduced.
Description
technical field [0001] The invention relates to the field of mechanical structures, in particular to an annular power flow fatigue testing machine. Background technique [0002] At present, the reciprocating work parts, such as oil cylinders, automobile brake pumps, etc., are often subjected to fatigue life tests according to national technical standards before mass production to test the number of times of reciprocating work under a given load until failure. to reflect the life of the product. The patent of the present invention is applied to the equipment of this kind of detection system. [0003] The fatigue life test benches currently in use all use motors or cylinders to drive the test piece, and then use the output of the test piece to drive the set load to do work and consume energy. This method requires high-power drive devices and load devices, consumes a lot of energy, and occupies a large space for the equipment. SUMMARY OF THE INVENTION [0004] The purpose ...
Claims
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IPC IPC(8): G01M13/00
Inventor 雷东亮周鹏陈士忠
Owner SHENYANG JIANZHU UNIVERSITY