Demagnetization method for rotating along inner circle or outer circle of heavy large bearing ring

A bearing ring, a heavy-duty technology, applied in the field of demagnetization of inner or outer circle rotation, can solve the problems of being unable to stand upright and can only be placed flat, so as to save hoisting and handling, save labor and prolong the service life.

CN101996735AInactive Publication Date: 2011-03-30LUOYANG BEARING RES INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-03-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a demagnetization method for rotating along an inner circle or an outer circle of a heavy large bearing ring. The heavy large bearing ring is horizontally placed, the axial end face of the heavy large bearing ring is contacted with a bottom plate, an E-shaped iron core and a coil are reversely buckled on the bottom plate, the upper end face and two lateral surfaces of an enclosure are connected with handles respectively, the enclosure is fixed on two sides of the bottom plate through bolts, the enclosure is connected between two chute rods through fastening screws, the ends of the chute rods are connected with a framework, and a guide wheel is arranged in the framework. During working, the guide wheel rotates for a plurality of circles along the inner circle or the outer circle of the heavy large bearing ring through the handles on the enclosure, the current passes through the coil and the E-shaped iron core to generate an alternating magnetic field under the power-on condition, and the alternating magnetic field is acted on the heavy large bearing ring to form a flux loop to implement demagnetization of residual magnetism of the heavy large bearing ring. The heavy large bearing ring is kept static all the time during demagnetization so as to save hoisting and carrying and save manpower; and the method has good demagnetization effect and is simple and reliable in operation.
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Description

[0001] technical field

[0002] The invention belongs to the technical field of bearing demagnetization, and in particular relates to a demagnetization method that rotates along the inner or outer circle of a heavy bearing ring.

[0003] Background technique

[0004] Heavy large bearings are mostly used in large CNC machine tools, metallurgical mining equipment, and wind power generation equipment. Due to the large volume and size of the heavy bearing ring (the ring refers to the inner ring of the heavy bearing or the outer ring of the heavy bearing), the handling of the heavy bearing ring is very difficult.

[0005] In the production and processing of heavy bearing rings, especially in the grinding process, some processing procedures often use electromagnetic chucks to absorb bearings for processing. After processing, strong residual magnetism is generated on the inner and outer rings of the bearings. The existence of residual magnetism will absorb a lot of grinding iron ...

Examples

Embodiment Construction

[0025] to combine Figure 4 , the demagnetization method of the present invention that rotates along the inner circle or outer circle of the heavy-sized bearing ring borrows the E-shaped iron core 8 and a group of coils 9 configured on the E-shaped iron core, the E-shaped iron core 8 and the coil 9 The working principle of the present invention is a mature known technology, but the E-type iron core 8 and the coil 9 are applied in the demagnetization method of the present invention, and its effect can make the heavy-sized bearing ring obtain demagnetization under stationary.

[0026] to combine Figure 1-2 Place the large bearing ring 10 horizontally, the axial end face of the large bearing ring 10 is in contact with the base plate 2 in the demagnetization device, and the E-type iron core 8 and the E-type iron core are reversed on the base plate 2 A set of coils 9 is configured. The lead wires of the coils 9 are arranged on the junction box outside the casing 1. The upper end ...