Inner-support type testing head of cylinder water press testing machine

Abstract

The invention provides an inner-support type testing head of a cylinder water press testing machine, belongs to the technical field of mechanical engineering, and solves the problems of low working efficiency and poor sealing effect of the inner-support type testing head of an existing cylinder water press testing machine. The inner-support type testing head of the cylinder water press testing machine comprises a fixed plate, wherein the lower side of the fixed plate is fixedly connected with a support barrel, the lower end of the support barrel is coaxially and fixedly connected with an inner support axle seat in a barrel shape, a water injection rod penetrates through the support barrel, a driving piece is arranged on the fixed plate, an air passage is formed between the outer side of the water injection rod and the inner support shaft seat, the lower end surface of the inner support shaft seat is provided with a sealing gasket, the lower end of the water injection rod penetrates through the inner support axle seat and the sealing gasket, an inner support block in a barrel shape sleeves the middle part of the water injection rod, the water injection rod can do reciprocating motion relative to the inner support block, the middle of the water injection rod is provided with a taper face, and the taper face can push to open the lower end of the inner support block. The inner-support type testing head of the cylinder water press testing machine has the advantages that the sealing effect is good, and the working efficiency is relatively high.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a test head, in particular to an inner support type test head of a steel cylinder hydraulic test machine. Background technique [0002] In accordance with international and national standards, hydrostatic tests are required for steel seamless steel cylinders, refillable welded steel cylinders, aluminum alloy seamless steel cylinders and wound steel cylinders, especially for liquefied petroleum gas cylinders. In the prior art, the hydrostatic test manually moves a single steel cylinder to the test position, and manually opens the water injection and gas injection valves to complete the test. The existing steel cylinder hydrostatic test equipment has the following defects: the steel cylinder is placed and moved away from the test position by manual After the moving is completed, the labor intensity is high, time-consuming, and the output is low; when testing, first place a water inj...

AI Technical Summary

Problems solved by technology

In the prior art, the hydrostatic test manually moves a single steel cylinder to the test position, and manually opens the water injection and gas injection valves to complete the test. The existing steel cylinder hydrostatic test equipment has the following defects: the steel cylinder is placed and moved away from the test position by manual After the moving is completed, the labor intensity is high, time-consuming, and the output is low; when testing, first place a water injection pressure head on the valve seat plane of the steel cylinder, fill water into the steel cylinder, pressurize after filling the water, and the pressing force acts through the water injection pressure head On the bottle body, when the steel cylinder is pressurized and kept under pressure, the bottle body is subjected to external force, and the steel cylinder has deformation of the bottle body caused by external force, which affects the test accuracy

The rotary driving mechanism of the automatic testing machine drives the sealing rod to rotate, and realizes the sealing connection between the sealing rod and the threaded hole of the valve seat of the steel cylinder, so its working efficiency is not high and the sealing effect is not ideal

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