Actual working condition simulation device of hydraulic oil tank and durability test method of hydraulic oil tank
A technology of hydraulic oil tank and simulation device, which is applied in the direction of oil supply tank device, fluid pressure actuation device, accumulator device, etc., and can solve the problem of inability to simulate the influence of hydraulic oil tank pressure and the inability to reflect the change of hydraulic oil volume, etc. problems, to achieve the effect of reducing test components and pipelines, ensuring consistency and accuracy, and reducing test costs
Active Publication Date: 2021-12-28
XCMG EXCAVATOR MACHINERY
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Problems solved by technology
[0002] At present, when the durability test of the hydraulic oil tank is carried out, the method of inflation simulation is used to increase the pressure in the oil tank, but because the gas is filled, it cannot reflect the change of the hydraulic oil volume in the oil tank when the hydraulic oil tank is actually working; and In this method, after the hydraulic oil tank is deflated, the minimum pressure in the oil tank is the normal atmospheric pressure, and it cannot simulate the actual working conditions, when the oil pump absorbs oil, the negative pressure in the oil tank is generated; nor can it simulate the pressure generated by the weight change of the hydraulic oil itself on the hydraulic oil tank influences
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[0026] The present invention will be further described below with reference to the accompanying drawings. The following examples are for more clearly explaining the technical solutions of the present invention without limiting the scope of the invention.
[0027] Combine figure 1 As shown, the actual working condition of the hydraulic oil tank of the present embodiment is mainly in order to simulate the actual working condition of the hydraulic tank and perform the endurance test of suction oil.
[0028] The hydraulic oil tank actual working condition simulation means includes a controller 5, a two-way variable pump 6, a filter 8, a reversing valve 10, a relief valve 11, a tank 12.
[0029] The oil absorbing port of the hydraulic tank 7 is connected to the bidirectional variable pump 6 through the oil absorbing line. The retorning port of the hydraulic tank 7 to be tested is connected to the bidirectional variable pump 6 through the return pipeline. When the reversing valve 10 doe...
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The invention discloses a hydraulic oil tank actual working condition simulation device and a hydraulic oil tank durability test method. The simulation device includes a two-way variable pump, a reversing valve and an oil tank; the two-way variable pump is respectively connected to the oil suction port and the oil return port of the hydraulic oil tank to be tested through the reversing valve; when the reversing valve is in the first position, the hydraulic oil tank to be tested is The port is connected with the two-way variable pump, and the two-way variable pump absorbs hydraulic oil from the hydraulic oil tank to be tested and pumps it into the oil tank through the oil suction pipeline; The two-way variable pump sucks hydraulic oil from the oil tank and pumps it into the hydraulic oil tank to be tested through the oil return pipeline. Through the suction and return of the hydraulic oil, the volume change of the hydraulic oil in the hydraulic oil tank is simulated. At the same time, the influence of the weight of the hydraulic oil on the oil tank is considered, and the negative pressure working condition in the oil tank is simulated, which is closer to the actual working condition of the hydraulic oil tank, ensuring test accuracy. The system is simple and reduces the test cost.
Description
Technical field [0001] The present invention relates to a hydraulic oil tank actual operating condition simulation device and a hydraulic fuel tank durability test method, which belongs to the technical field of hydraulic oil tank test. Background technique [0002] At present, when the hydraulic fuel tank is durable, it is a manner of inflation simulation, so that the fuel tank is boosted, but since the gas is charged, the gas tank has a variation of hydraulic oil in the fuel tank during the actual conditions of the hydraulic tank; After the hydraulic fuel tank is deflated, the pressure in the fuel tank is normal to normal atmospheric pressure, and when the actual working condition cannot be simulated, the oil tank is generated during the oil pump, and the hydraulic oil itself cannot be simulated to change the pressure of the hydraulic tank to the hydraulic fuel tank. Influence. Inventive content [0003] The technical problem to be solved by the present invention is to overcom...
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IPC IPC(8): F15B19/00F15B1/26
CPCF15B19/00F15B19/007F15B1/265
Inventor 王修通肖云博曹西朴巩亚飞张昆秦强
Owner XCMG EXCAVATOR MACHINERY