Special explosion-proof motor for plunger pump and process

Abstract

The invention discloses a special explosion-proof motor for a plunger pump and a process. The explosion-proof motor comprises a motor stator, a motor rotor and a base, the motor stator is arranged inthe base, and the motor rotor is arranged at the inner side of the motor stator. The explosion-proof motor also comprises a front shaft supporting structure and a machine base bottom foot plate. A motor shaft is arranged in the motor rotor and is sleeved with a belt wheel, and the front end of the motor shaft penetrates out of the front end of the belt wheel and then is connected with the front shaft supporting structure. According to the machining process of the explosion-proof motor, the base bottom foot plate of the explosion-proof motor is machined through a vertical milling machine. According to the explosion-proof motor, the unique front shaft supporting structure is newly added, so that the stress form of the motor shaft is changed into a simply supported beam from an existing cantilever beam, the stress of the motor shaft is reasonable, the overload capacity is enhanced, and the quality is guaranteed. Under the auxiliary effect of an auxiliary machining device, the upper end face and the lower end face of the machine base bottom foot plate are machined through the vertical milling machine so as to meet the requirement for parallelism of the upper end face and the lower endface of the machine base bottom foot plate.

Description

technical field [0001] The invention relates to a motor and a process, in particular to a special explosion-proof motor for a plunger pump and a process. Background technique [0002] The plunger pump is a commonly used power component in the hydraulic system. It uses the reciprocating movement of the plunger in the cylinder to cause the volume change of the hydraulic oil working chamber, thereby realizing oil suction and oil pressure; the plunger pump has high rated pressure and high efficiency. , are widely used in high pressure, large flow occasions. [0003] As the output torque required by the plunger pump increases, the unit capacity of the motor used in the plunger pump also increases; the traditional connection between the motor and the plunger pump is a pulley connection, and the pulley is set on the motor of the motor. on axis. Due to the increased output torque required by the plunger pump, the original four or six belts in the pulley connection can no longer me...

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Problems solved by technology

However, the motor shaft produced by this solution can only run normally for a short period of time. With the increase of the motor's service time, the motor shaft breaks very frequently, and the broken shaft rate is as high as 60% within two months of the motor shaft's operation. -70%. During the warranty period of the motor (generally one year), the broken shaft rate of the motor shaft is as high as 95%. The frequent broken shaft of the motor shaft seriously affects the normal operation of the motor for the plunger pump, causing great damage. Economic losses

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