Automatic adjustment and control method of hydraulic oil return flow rate of vibrating table and horizontal slide table
A horizontal sliding table, automatic adjustment technology, used in vibration testing, measuring devices, testing of machine/structural components, etc., can solve problems such as changes, inability to meet the oil return requirements of the horizontal sliding table, and improve the bearing capacity and uniformity. Effect
Active Publication Date: 2020-08-25
SUZHOU SUSHI TESTING INSTR CO LTD
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Problems solved by technology
In order to ensure the working condition of the hydraulic oil, the oil return flow also needs to change with the change of the oil supply flow. The traditional open oil return can no longer meet the oil return requirements of the horizontal slide table under the test conditions of large temperature changes.
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[0066] Example: see attached Figure 4~7 As shown, an automatic adjustment control method for the hydraulic oil return flow of a vibrating table and a horizontal slide table, which is used to control the automatic adjustment system of the hydraulic oil return flow; the automatic adjustment system includes an oil collection valve 11 and an oil separation valve 12; The oil collecting valve 11 is connected with a first oil inlet pipeline 13, an oil return pipeline 14 and a second oil inlet pipeline 15; the oil collecting valve 11 is a valve with two inlets and one outlet, and each pipeline is a one-way flow pipeline. The oil distribution valve 12 is connected with an oil inlet pipeline 16, an oil distribution pipeline 17 and an oil return pipeline 18; the oil distribution valve is a valve with one inlet and two outlets, and each pipeline is a one-way flow pipeline.
[0067] The first oil inlet pipeline 13 of the oil collecting valve 11 communicates with the oil outlet of the hor...
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An automatic adjustment and control method for the return oil flow of hydraulic oil in a horizontal slide table of a vibration table includes the following steps: S1, the working circuit of an oil return pump is started; S2, whether the hydraulic oil is located at an upper or lower limit level at the moment is judged; if the hydraulic oil is located at the upper limit level, an electromagnetic proportional valve acts backward and the opening degree is reduced, and the return oil flow of an oil return pipeline is increased; and if the hydraulic oil is located at the lower limit level, the oil return pump stops working for a period of time, the electromagnetic proportional valve acts forward and the opening degree is increased, and the return oil flow is reduced; and S3, whether the return oil flow of an oil distribution valve is greater or smaller than the supply oil flow at the moment is judged; if the return oil flow of the oil distribution valve is greater than the supply oil flow atthe moment and the absolute value of voltage is greater than an action threshold voltage, the electromagnetic proportional valve acts forward, and the return oil flow of the oil return pipeline is reduced; and if the return oil flow of the oil distribution valve is smaller than the supply oil flow at the moment and the absolute value of voltage is greater than the action threshold voltage, the electromagnetic proportional valve acts backward, and the return oil flow of the oil return pipeline is increased until the return oil flow is equal to the supply oil flow. The return oil and the supplyoil can be automatically adjusted to achieve a balance, and the hydraulic oil level can be always kept within a reasonable range.
Description
technical field [0001] The invention relates to the field of electrodynamic vibration tests, in particular to an automatic adjustment and control method for hydraulic oil return flow of a vibration table and a horizontal slide table. Background technique [0002] Electric vibration table is a kind of equipment used for various environmental vibration tests, widely used in aerospace, instrumentation, automobile, home appliances, electronics and other industries. In order to meet the test requirements of large size, heavy weight, and large overturning moment specimens, most shaking tables will drag a horizontal slide table carried by several T-shaped hydraulic guide rails. [0003] In order to meet the load-bearing requirements of the T-shaped guide rail, it is necessary to use a high-pressure oil source to provide a certain pressure and flow of hydraulic oil to the guide rail, and the pressure and flow of the hydraulic oil must meet the load-bearing requirements. The hydrauli...
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IPC IPC(8): G01M7/02
CPCG01M7/022
Inventor 陈勇姜健聂长禄
Owner SUZHOU SUSHI TESTING INSTR CO LTD