Pressure test device for base of explosion-proof electric machine

Abstract

The invention relates to a pressure test device for a base of an explosion-proof electric machine, comprising a base, two vertical columns, a movable cross beam, fixed cross beams, a press rack, a pressure water supply system and a pressure oil supply system. The vertical columns are respectively and symmetrically arranged on the upper part of the left end and the right end of the base, the upper ends of the two vertical columns are provided with the fixed cross beams, the base, the two vertical columns and the fixed cross beams form a rigid portal frame, the pressure oil supply system provides pressure oil to drive the movable cross beam to move vertically among the base and the fixed cross beams along the two vertical columns up and down, a seat of a machine to be subjected to a pressure test is directly embedded into the base of the pressure test device, one end of the seat is sealed with the base, another end of the seat is sealed with a technical gland, and the pressure test can be carried out on the seat of the machine to be subjected to the pressure test by feeding water after the seat is compacted through an oil cylinder. The whole pressure test process is safe and reliable, the quality assurance of the base of the pressure test device is ensured, the labor strength of the pressure test is greatly reduced, the pressure test time are greatly shortened, and the water for the pressure test can reutilized for a plurality of times.

Description

technical field [0001] The invention relates to an explosion-proof motor manufacturing equipment, in particular to a pressure test equipment for an explosion-proof motor base. Background technique [0002] In the manufacturing process of explosion-proof motors, it is necessary to carry out hydrostatic testing on the motor frame to detect welding defects or material defects in the motor frame, such as cracks, pores, etc. Seepage. At present, the pressure test of the large explosion-proof motor base is generally to press the two ends of the tested press base with the simulated end cover through the tension screw, and then pass the pressure water to carry out the pressure test test. This clamping is very troublesome, and it often causes water leakage at both ends of the machine base due to uneven tightening force of several tensioning screws. In this way, it is necessary to repeatedly adjust the tensioning screws, which is time-consuming and laborious. At the same time, after ...

AI Technical Summary

Problems solved by technology

This clamping is very troublesome, and it often causes water leakage at both ends of the machine base due to uneven tightening force of several tensioning screws. In this way, it is necessary to repeatedly adjust the tensioning screws, which is time-consuming and laborious. At the same time, after the pressure test is completed The water that is drained and wasted cannot be reused, especially for a large machine base, the water used for a pressure test is about two tons. If a machine base is repeatedly tested for several times, the waste will be even greater, and the production efficiency will be low.

Images