Regulating valve flow test device of high-speed rail shock absorber and using method thereof
A technology of flow test and regulating valve, which is applied in the direction of shock absorber, measuring device, machine/structural component test, etc. It can solve the problems of high cost, low efficiency of flow test bench, slow adjustment of damping performance of anti-snake shock absorber, etc. , to achieve the effects of cost reduction, high adjustment accuracy and low production cost
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Embodiment 1
[0026] A control valve flow test device for high-speed rail shock absorbers, such as figure 1 , comprising an oil storage cylinder seat 1, a working cylinder 2 and a piston 3, a regulating valve body 4 is arranged in the oil storage cylinder seat 1, and the oil inlet part of the regulating valve body 4 communicates with one end of the oil passage 101 in the oil storage cylinder seat 1, and the oil The other end of the channel 101 communicates with one end of the oil guide pipe 5, and the oil guide pipe 5 is arranged in the side wall of the working cylinder 2, and the other end of the oil guide pipe 5 communicates with one end of the upper cavity 6 of the working cylinder to adjust the oil outlet of the valve body 4 Connected with the valve seat 7, the piston 3 is inside the working cylinder 2, the piston 3 is provided with a first one-way valve 8, the working cylinder chamber between the piston 3 and the oil guide pipe 5 is the upper chamber 6 of the working cylinder, and the v...
Embodiment 2
[0029] A control valve flow test device for high-speed rail shock absorbers, such as figure 2 with image 3 , similar to Embodiment 1, the difference is that the limit nut 401 on the oil inlet part of the regulating valve body 4 is fixed on the regulating valve body 4 through threaded connection, and the top of the limit nut 401 can be a smooth plane, limiting The top of the position nut 401 is processed with at least one oil outlet hole, the limit nut 401 has an inner cavity, the limit nut 401 can accurately dock the regulating valve body 4 and the oil passage 101, and the oil enters through the inner cavity of the limit nut 401 regulating valve body 4, figure 2 The arrow shown in indicates the direction in which the oil enters the inner cavity of the limit nut 401 .
[0030] It can also be preferred that a throttling hole 402 is processed on the oil outlet part of the side wall of the regulating valve body 4, and at least one throttling hole 402 is provided. 402 dischar...
Embodiment 3
[0035] The using method of the regulating valve flow test device of the high-speed rail shock absorber as described in embodiment 1 comprises the following steps,
[0036] When the piston 3 in the working cylinder 2 is stretched outward, pressure is generated on the oil, the first check valve 8 on the piston 3 is closed, and the oil in the upper chamber 6 of the working cylinder passes through the oil guide pipe 5 and the oil storage cylinder seat 1 The oil passage 101 inside enters the regulating valve body 4, the oil enters the valve seat 7 through the regulating valve body 4, the second one-way valve 9 on the valve seat 7 opens, and the oil enters the lower cavity of the working cylinder through the second one-way valve 9 10;
[0037] When the piston 3 in the working cylinder 2 is compressed inwardly, pressure is generated on the oil, the second one-way valve 9 on the valve seat 7 is closed, the first one-way valve 8 on the piston 3 is opened, and the oil in the lower cavit...
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