Valve life testing device

Abstract

The invention provides a valve life testing device which belongs to the technical field of machinery and solves the problem that no testing equipment for a lead screw valve core exists on a traditional market. The valve life testing device comprises a stand, wherein the stand is provided with a clamping mechanism which can fix the valve body of a valve on the stand, the stand is provided with a cylinder 1 and a rotating sleeve which can be connected with the lead screw of the valve, a rack is connected to the piston rod of the cylinder 1, and the rotating sleeve is connected with a gear engaged with the rack; when the piston rod of the cylinder 1 extends and shrinks, the rotating sleeve can rotate; and the cylinder 1 is connected with a control mechanism which can control the sliding stroke of the piston rod. The valve life testing device has the advantages of simple structure, convenient use, capability of on-line pressurized testing, small occupied area and accurate and effective testing.

Description

technical field [0001] The invention belongs to the technical field of machinery, in particular to a valve life testing device. Background technique [0002] There are more and more types of existing valves. According to their different designs and operating principles, their testing equipment and methods also need to be adjusted in time. At present, the more common gate valves and globe valves on the market rely on the threaded transmission of the screw or the valve core to drive the movement of the seal to achieve the opening and closing function. The life of this valve is largely determined by the screw or the valve core. Finally, it can be determined whether it can be sealed. The life test for this type of valve is equivalent to the life test for the screw valve core, but there is no testing equipment for this type of screw valve core on the market. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned problems in the e...

AI Technical Summary

Problems solved by technology

At present, the more common gate valves and globe valves on the market rely on the threaded transmission of the screw or the valve core to drive the movement of the seal to achieve the opening and closing function. The life of this valve is largely determined by the screw or the valve core. Whether it can be sealed at the end, the life test for this type of valve is equivalent to the life test for the screw valve core, but there is no testing equipment for this type of screw valve core in the market

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