a vertical motor

Abstract

A vertical motor, including a flange base and a machine base installed on the flange base, a cooler is connected to the outer wall of the machine base, an upper end cover and a lower end cover are respectively installed on the upper and lower ends of the machine base, and the rotating shaft The guide bearing at the upper end and the thrust bearing at the lower end are installed inside the upper end cover and the lower end cover. The oil outlet pipe is connected, and the length of the oil outlet pipe is less than the inner diameter of the machine base; the machine base is connected with the flange base and the lower end cover through the bolts installed below it; the thrust bearing is connected with the lower end cover through the bearing sleeve, and the outer surface of the bearing sleeve smaller than the inner diameter of the stator. The invention makes the disassembly and assembly of the motor convenient, the insulation and oil circuit settings are reasonable, and the operation is more stable and reliable.

Description

technical field [0001] The present invention relates to motors, in particular to vertical motors. Background technique [0002] In the metallurgical industry, it is often necessary to straighten the rolled and formed steel into steel products. During straightening, vertical rollers must be used to restrain the force of the steel plate moving in the left and right directions before entering the straightening machine mouth. The vertical roller is driven by the vertical motor, and the normal operation of the vertical motor is related to the production of the whole rolling line. [0003] The existing vertical motors are generally low-voltage variable frequency motors. The shaft extension end of the rotating shaft faces upwards, and the non-shaft extension end faces downward. All are borne by thrust bearings. Because it is a variable frequency motor, the thrust bearing at the non-shaft end should be insulated. The guide bearing is a special bearing used to withstand the radial...

AI Technical Summary

Problems solved by technology

[0005] (1) Inconvenient disassembly and assembly: When the vertical motor needs to be overhauled and maintained, it is often necessary to disassemble the bearing, which is likely to cause damage to the bearing; It takes a long time and the installation efficiency is low; the requirements for the lifting equipment used for disassembly and assembly are very high, and the maintenance cost is high

[0006] (2) Insulation is unreasonable: In order to prevent the shaft current from damaging the motor bearing, the bearing sleeve of the thrust bearing at the non-shaft extension end of the vertical motor is generally a split structure, and the split part is sandwiched by a "one" composed of multi-layer imide film. ""-shaped insulation structure, because the weight of the rotor of the motor is all added to the thrust bearing at the non-shaft extension end, after the bearing sleeve is moved under force, the conventional "one"-shaped split-lobe insulation structure is easily damaged, affecting the operation stability of the motor and reliability

[0007] (3) The oil circuit is unreasonable: after refueling from the oil inlet pipe, the grease is mixed in the bearing chamber through the circumferential direction of the oil throwing plate and then enters the inside of the bearing for lubrication. Part of the waste oil will enter the inside of the motor along the labyrinth, affecting the operation stability of the motor and reliability

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