A rapid and accurate testing system and testing method for leakage in a hydraulic cylinder
A testing system and internal leakage technology, applied in the testing of fluid pressure actuation systems, fluid pressure actuation devices, mechanical equipment, etc., can solve problems such as restricting the rapid quality inspection of batch products, and achieve novel hydraulic principles and strong versatility. , the effect of perfect function
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Embodiment 1
[0053] Such as figure 1 As shown, a rapid and accurate testing system for internal leakage of a hydraulic cylinder includes a low-pressure operation control module, a high-pressure loading control module, an internal leakage test module I, an internal leakage test module II, and the tested cylinder. The low-pressure operation control module provides low-pressure high-flow power oil for the tested cylinder, and the high-pressure loading control module provides high-pressure low-flow power oil for the tested cylinder.
[0054] Low pressure operation control module:
[0055] The low-pressure and high-flow pump 7 is driven by the motor II6; it provides low-pressure and high-flow power oil for the tested cylinders to perform test operations such as trial operation according to national standards;
[0056] The oil inlet of the one-way valve 8 communicates with the oil outlet of the low-pressure high-flow pump 7; it is used to prevent the load pressure of the cylinder under test fro...
Embodiment 2
[0087] A test method for a rapid and accurate test system for leakage in a hydraulic cylinder, on the basis of the first embodiment above, includes the following steps:
[0088] Leakage test mode of the rodless cavity of the tested cylinder:
[0089] 1. The starter motor II6 drives the low-pressure and high-flow pump 7 to work, and the electro-hydraulic reversing valve 18 switches to the right position to work. The low-pressure and high-flow flow enters the rodless chamber of the tested cylinder through the electro-hydraulic reversing valve 18, and drives the tested cylinder to extend. out to the end of the stroke;
[0090] 2. Start the motor I1 to drive the high-pressure small-flow pump 2 to work, the two-position two-way electromagnetic ball valve 13 is charged to work in the upper position, and the unloading oil circuit is closed;
[0091] The oil inlet cut-off valve of the accumulator valve group 11 is opened, the oil return cut-off valve is closed, the accumulator 12 flu...
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