CN-224205273-U - Bearing electromagnetic induction heating device

CN224205273UCN 224205273 UCN224205273 UCN 224205273UCN-224205273-U

Abstract

The utility model provides a bearing electromagnetic induction heating device, includes quick-witted case, installs power plug and switch on the quick-witted case, the U-shaped iron core down of fixed mounting opening up in quick-witted incasement, U-shaped iron core wears out quick-witted case up end down, and the coil is wound to U-shaped iron core down, coil, power plug and switch pass through the wire and constitute closed loop, and the last U-shaped iron core of sliding mounting opening down is located down U-shaped iron core top about on the quick-witted case, just go up U-shaped iron core and U-shaped iron core down just to arranging. The bearing can be quickly mounted on the shaft rod, the mounting operation is convenient and quick, and the bearing and the shaft rod are not damaged.

Inventors

YAO LI
LI SHUANGQING
YU YANG
XIA DONGLIN
SHEN YANHUA
Yan Luobin

Assignees

中信(辽宁)新材料科技股份有限公司

Dates

Publication Date: 20260505
Application Date: 20250427

Claims (6)

1. The electromagnetic induction heating device for the bearing comprises a machine case, wherein a power plug and a power switch are arranged on the machine case, and the electromagnetic induction heating device is characterized in that a lower U-shaped iron core with an upward opening is fixedly arranged in the machine case, the lower U-shaped iron core penetrates out of the upper end face of the machine case, a coil is wound on the lower U-shaped iron core, the coil, the power plug and the power switch form a closed loop through wires, an upper U-shaped iron core with a downward opening is arranged above the lower U-shaped iron core on the machine case in a sliding manner, and the upper U-shaped iron core and the lower U-shaped iron core are arranged in an opposite manner.
2. The electromagnetic induction heating apparatus for bearings according to claim 1, wherein a temperature switch is installed on the cabinet, and the temperature switch forms a closed loop with the coil, the power plug and the power switch through wires.
3. The electromagnetic induction heating apparatus for bearings according to claim 2, wherein the permanent magnet is mounted on a temperature switch.
4. The electromagnetic induction heating device for bearings according to claim 1, wherein a guide rail is fixedly installed on the cabinet, a sliding table is installed on the guide rail in a sliding manner up and down, and the upper U-shaped iron core is fixedly installed on the sliding table.
5. The electromagnetic induction heating device for bearings according to claim 1, wherein a lower insulating bracket is fixedly installed in the housing, and the lower U-shaped iron core is fixedly installed on the lower insulating bracket.
6. The electromagnetic induction heating apparatus for bearings according to claim 1, wherein the upper insulating bracket is fixedly installed on the sliding table, and the upper U-shaped iron core is fixedly installed on the upper insulating bracket.

Description

Bearing electromagnetic induction heating device Technical Field The utility model relates to a bearing heating device, in particular to a bearing electromagnetic induction heating device. Background The bearing is a precision mechanical base part, the bearing is sleeved on the shaft rod when in use, and the traditional bearing mounting mode adopts a hydraulic press for press mounting, so that the press mounting mode has the problems that the pressure is too small, the bearing is not pressed in place, the pressure is too large, the shaft rod and the bearing are damaged, and especially, the shaft rod with larger size and higher material hardness can be subjected to secondary press mounting, and the bearing mounting efficiency is low. CN110561034a discloses a bearing heating device, which comprises an inner induction coil with a circular ring shape and an outer induction coil with a circular ring shape, wherein a bearing to be heated is placed in an annular gap between the inner induction coil and the outer induction coil, the inner induction coil is positioned in an inner ring of the bearing and is used for electromagnetic heating of the inner ring of the bearing, and the outer induction coil is positioned outside an outer ring of the bearing and is used for electromagnetic heating of the outer ring of the bearing. Although the bearing heating device solves the problems of the press-fitting bearing of the hydraulic machine, the positions of the inner induction coil and the outer induction coil are fixed, and the bearing heating device is only applicable to the type bearing which can be placed between the inner induction coil and the outer induction coil and has a narrow application range. Disclosure of Invention The utility model aims to solve the technical problems and provides an electromagnetic induction heating device for a bearing, which heats the bearing in an electromagnetic induction mode and can be applied to heating of most types of bearings. The bearing can be quickly mounted on the shaft rod, the mounting operation is convenient and quick, and the bearing and the shaft rod are not damaged. The technical scheme of the utility model is as follows: The electromagnetic induction heating device for the bearing comprises a machine case, wherein a power plug and a power switch are arranged on the machine case, and the electromagnetic induction heating device is characterized in that a lower U-shaped iron core with an upward opening is fixedly arranged in the machine case, the lower U-shaped iron core penetrates out of the upper end face of the machine case, a coil is wound on the lower U-shaped iron core, the coil, the power plug and the power switch form a closed loop through wires, an upper U-shaped iron core with a downward opening is arranged above the lower U-shaped iron core on the machine case in a sliding manner, and the upper U-shaped iron core and the lower U-shaped iron core are arranged in an opposite manner. Further, a temperature switch is arranged on the case, the temperature switch, the coil, the power plug and the power switch form a closed loop through wires, the temperature switch is attached to the bearing, and when the bearing reaches the specified temperature, the temperature switch is turned off, so that the temperature of the bearing is prevented from being too high. Further, a permanent magnet is mounted on the temperature switch, and the temperature switch is fixed on the bearing through the permanent magnet. Further, a guide rail is fixedly installed on the chassis, a sliding table is installed on the guide rail in a vertical sliding mode, and the upper U-shaped iron core is fixedly installed on the sliding table to realize vertical sliding of the upper U-shaped iron core. Further, a lower insulating bracket is fixedly arranged in the chassis, and the lower U-shaped iron core is fixedly arranged on the lower insulating bracket. Further, an upper insulating support is fixedly arranged on the sliding table, and the upper U-shaped iron core is fixedly arranged on the upper insulating support. The beneficial effects of the utility model are as follows: The upper U-shaped iron core and the lower U-shaped iron core which are arranged vertically and oppositely are arranged on the chassis, the coil is wound on the lower U-shaped iron core, and during operation, the bearing is firstly placed on the upper end face of the chassis, the upper U-shaped iron core and the lower U-shaped iron core are attached to each other by sliding downwards, the bearing is sleeved at one end of the upper U-shaped iron core, then an alternating magnetic field is generated after the coil is electrified, the bearing generates induction current and heats to reach a specified temperature under the action of the alternating magnetic field, the diameter of the inner ring of the bearing is enlarged after being heated, the diameter of the inner ring of the bearing is finally easily sleeved on the shaft rod, the dia