High-frequency fatigue actuating device
An actuating device and fatigue technology, which is used in measuring devices, vibration testing, and testing of machine/structural components. Effects of heat dissipation, power reduction, effective lubrication and heat dissipation
Pending Publication Date: 2020-02-11
SICHUAN UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to provide a high-frequency fatigue actuating device to solve the problem that the existing high-frequency fatigue equipment is difficult to achieve high-frequency vibration with super force
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[0037] Please refer to figure 1 , a high-frequency fatigue actuating device, comprising: an electromagnetic resonance generator 10 , a piston assembly 20 , a first hydraulic cylinder 30 and a second hydraulic cylinder 40 . A bracket 60 is provided on the top of the electromagnetic resonance generator 10 , and the first hydraulic cylinder 30 is mounted on the bracket 60 . The top end of the piston assembly 20 is placed in the first hydraulic cylinder 30 , and the bottom end is connected with the electromagnetic resonance generator 10 through a coupling 70 . The top of the first hydraulic cylinder 30 communicates with the second hydraulic cylinder 40 through a pipeline. In this embodiment, in order to achieve force amplification, the diameter of the first hydraulic cylinder 30 is smaller than the diameter of the second hydraulic cylinder 40 .
[0038] Please refer to figure 2 , the first hydraulic cylinder 30 includes a cylinder block 35, the upper and lower ends of the cyli...
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The invention discloses a high-frequency fatigue actuating device, and belongs to the technical field of fatigue test equipment. The high-frequency fatigue actuating device comprises an electromagnetic resonance generator, a piston assembly, a first hydraulic cylinder and a second hydraulic cylinder. The piston assembly comprises a piston and a connecting rod; the piston is arranged in the first hydraulic cylinder and is in sliding fit with the inner side wall of the first hydraulic cylinder, and a pressure cavity is formed between the piston and the side wall and the top wall of the first hydraulic cylinder. The top end of the connecting rod is connected with the piston; the bottom end of the connecting rod penetrates through the bottom side of the first hydraulic cylinder and is connected with the electromagnetic resonance generator; the first hydraulic cylinder is provided with an oil inlet channel and an oil outlet channel which are communicated with the pressure cavity, and the oil outlet channel is further communicated with the second hydraulic cylinder through a pipe. On the basis of the Pascal principle, the load can be amplified according to a certain proportion through hydraulic oil pressure transmission, the use power of traditional high-frequency fatigue equipment is reduced, and high-frequency vibration with an ultra-large force value can be achieved.
Description
technical field [0001] The invention relates to the technical field of fatigue test equipment, in particular to a high-frequency fatigue actuating device. Background technique [0002] At present, high-frequency fatigue equipment is mainly divided into two types. One uses hydraulic control, combined with high-frequency servo valves, to achieve high-frequency vibration of the equipment. This method requires multiple sets of high-pressure, large-flow hydraulic pumps, and There are multiple sets of high-power motors, the hydraulic system is huge and complex, and it needs to be equipped with a cooling system. The manufacturing cost is very expensive, the energy consumption is serious, and it is difficult to achieve high-frequency vibration with ultra-high force. [0003] Another type of high-frequency vibration equipment using mechanical transmission is represented by electromagnetic resonance fatigue equipment. The output shaft of the electromagnetic resonance generator is rigi...
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IPC IPC(8): G01M7/02
CPCG01M7/022
Inventor 艾婷王启营张茹任利张泽天谢晶刘洋张朝鹏
Owner SICHUAN UNIV