Water pressure safety valve for mine motor

Abstract

The invention discloses a water pressure safety valve for a mine motor. The safety valve is arranged on a water cooling system of the mine motor. The safety valve comprises a spring valve seat. The valve seat comprises a connecting portion of the lower portion and a valve cavity. A through hole of the connecting portion communicates with the valve cavity. A thread is arranged on the outer side ofthe connecting portion. The valve cavity is of a cylinder shape. A sealing ring is arranged on the bottom of the valve cavity. The sealing ring surrounds the outer side of the through hole of the connecting portion. A closed gasket is arranged above the sealing ring. A spring is arranged above the closed gasket. A gasket is arranged above the spring. The gasket abuts against a valve element. A thread is arranged on the outer side of the periphery of the valve element. The valve element and a screw hole in the inner side wall of the upper portion of the valve cavity are screwed down. The valveelement is provided with a water passing opening. The safety pressure has the advantages that 1, the problem that due to the fact that water pressure is too large, a base of the mine motor deforms iseffectively avoided, and the service life of the motor is ensured; 2, the size of the valve body is small, and installing of the mine motor is not influenced; 3, reliability is high, the safety valveis not prone to losing efficacy, and the maintenance period is long; and 3, the structure is simple, machining is easy, and after being invested into production, the safety valve is suitable for batchproduction.

Description

technical field [0001] The invention relates to the field of mine motors, in particular to a mine motor protection device. Background technique [0002] Water-cooled type is one of the main cooling methods of mining motors, and its cooling effect is very obvious. However, due to the harsh working environment of coal mines, the water pressure is often unstable. If the water pressure is too high, the motor base will be deformed, which not only affects the use, but also makes it very difficult to disassemble the motor for maintenance, seriously affecting production efficiency. After using the water pressure safety valve, when the water pressure exceeds the preset pressure of the water pressure safety valve, the safety valve will automatically release the pressure to avoid deformation of the motor base; after the water pressure returns to normal, the water pressure safety valve will automatically close without affecting Normal motor operation. Moreover, the water pressure safe...

AI Technical Summary

Problems solved by technology

However, due to the harsh working environment of coal mines, there are often situations where the water pressure is unstable. If the water pressure is too high, the motor base will be deformed, which not only affects the use, but also makes it very difficult to disassemble the motor for maintenance, which seriously affects production efficiency.

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