Centripetal thrust force protection bearing used for magnetic suspension bearing system

A technology for protecting bearings and magnetic suspension, applied to bearings, bearing components, shafts and bearings, etc., can solve the problems of poor resistance to vibration and impact, protection of bearings from burnout, and low operating speed of protection bearings

Inactive Publication Date: 2008-06-04
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the speed of the magnetic suspension bearing is generally very high, the rotor assembly will generate a lot of vibration and shock when it falls on the protective bearing. The main problems at present ar

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  • Centripetal thrust force protection bearing used for magnetic suspension bearing system

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Embodiment Construction

[0013] The composition, working principle and structural design of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0014] The centripetal thrust protection bearing used in the magnetic suspension bearing system shown in Figure 1 can be used as a protection bearing for radial load and axial load in the magnetic suspension bearing system. The outer ring 2 of the first group of rolling bearings is connected with the inner ring 4 of the second group of rolling bearings through the adapter ring 3, and the outer ring 5 of the second group of rolling bearings is connected with the inner ring 6 of the radial elastic damper. The inner ring 6 of the elastic damper, the radial multilayer (3-20 layers) corrugated steel plate 7 and the outer ring 8 of the radial elastic damper are assembled together to form a radial elastic damper, and the outer ring 8 of the radial elastic damper Assembled with the inner hole of the frame 11...

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Abstract

The invention relates to a centripetal thrust protection bearing used for a magnetic suspension bearing system, which belongs to a magnetic suspension bearing. The invention comprises inner rings and outer rings of a first set of roller bearings, adapter rings, inner rings and outer rings of a second set of roller bearings, an inner ring and an outer ring of a radial elastic damper, a radial three-layer to twenty-layer corrugated steel plate, a first set of bolts, an end cover, a machine foundation, a rotor component, an axial elastic damper, a gland and a second set of bolts. The rotating speed born by a roller bearing in the prior structure is born by two sets or over two sets of bearings, and energy generated by vibration and impact is absorbed by utilization of elastic deformation in the radial direction and the axial direction of the dampers and friction power applying work in the tangent direction of the dampers, thereby working speed and service life of the bearings are improved. The invention can be taken as the centripetal thrust protection bearing for simultaneously bearing radial load and axial load in the magnetic suspension bearing system and also can be taken as a roller bearing having the advantages of higher rotating speed and vibration and compact resistance.

Description

1. Technical field [0001] The invention provides a centripetal thrust protection bearing composed of multiple groups of rolling bearings (2 groups or more, each group uses 2 angular contact ball bearings) and an elastic damper, which can not only increase the working speed of the protection bearing, but also absorb large Part of the energy generated by vibration and impact is suitable as a centripetal thrust protection bearing that simultaneously bears radial load and axial load in a high-speed magnetic suspension bearing system, and can also be used as a rolling bearing with higher speed and resistance to vibration and impact. 2. Background technology [0002] In the magnetic suspension bearing system, in order to ensure the reliability and safety of the system, a set of protective bearings (also called auxiliary bearings, or spare bearings, or emergency bearings) is generally required, one of which is to simultaneously bear radial loads and axial loads. The centripetal thr...

Claims

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Application Information

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IPC IPC(8): F16C41/00F16C32/04
CPCF16C19/54F16C19/55F16C27/04F16C32/0442F16C39/02
Inventor 徐龙祥
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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