Water-cooled motor and anti-tympanites method of water-cooled end cover body of water-cooled motor

Abstract

The invention provides a water-cooled motor, which comprises a rotor spindle, a water-cooled case, stators in the water-cooled case and a water-cooled end cover body, the water-cooled end cover body comprises a water-cooled end cover, the cover plate of a circulating water channel and a bolt, wherein the cover plate of the circulating water channel is used for covering the circulating water channel on the water-cooled end cover. The center of the water-cooled end cover is provided with an axle hole which are matched with the rotor spindle; the water-cooled end cover is provided with a water guiding hole which is communicated with the water-cooled case and a circulating water channel which is concentric with the axle hole; and the water-cooled end cover is provided with a screw hole; the cover plate of the circulating water channel is provided with a counter bore which corresponds to the screw hole positioned on the water-cooled end cover. After the cover plate of the circulating water channel is covered on the circulating water channel of the water-cooled end cover, the bolt passes through the counter bore on the cover plate of the circulating water channel to be tightened with the screw hole on the water-cooled end cover; the connection edge of the cover plate of the circulating water channel and the water-cooled end cover is welded; and the counter bore of the cover plate of the circulating water channel is blocked and welded. The invention also provides an anti-tympanites method of the water-cooled end cover body.

Description

Technical field: [0001] The invention relates to the technical field of motors, in particular to a water-cooled motor and a method for preventing swelling of a water-cooled end cover of the water-cooled motor. Background technique: [0002] In the coal industry, electric motors play an extremely important basic role in all power machinery. The casing of the motor of the existing coal mine driving coal mining equipment and the front and rear water-cooled end covers are provided with a ring water tank, and the ring water tank on the casing is connected with the ring water tanks on the two water-cooled end covers. The external circulating water flows through the ring water tank to take away the heat generated by the motor during operation, thereby reducing the temperature of the motor. [0003] Please see also figure 1 , which is a schematic structural view of a water-cooled end cover body 10 of a conventional water-cooled motor. The water-cooled end cover body 10 of the mot...

AI Technical Summary

Problems solved by technology

However, due to the impact of the size of the annular water tank 112 and the bore 121, the contact area between the bore 121 and the water-cooled end cover 11 is too small, and the phenomenon of virtual welding between the bore 121 and the water-cooled end cover 11 is prone to occur. When the circulating water with high pressure flows through the ring water tank, the welded part of the drill hole 121 and the water-cooled end cover 11 is prone to deformation and swelling, causing the water-cooled end cover body 10 to be scrapped

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