Reliably-connected and adjustable bearing pre-tightening structure and assembling and adjusting method

An assembly and adjustment method and bearing technology, which is applied in the direction of bearing assembly, shaft and bearing, bearing components, etc., can solve problems such as complicated operation, and achieve the effect of simple operation and uniform clamping force

Active Publication Date: 2021-04-16
HEBEI HANGUANG HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A typical bearing preload structure includes installing a washer between the shaft and the inner ring of the bearing. The adjustment of the bearing preload is achieved by controlling the thickness of the washer. When the bearing preload needs to be readjusted, the shafting must be disassembled to replace the gasket. Operation Complex, even recalibration and testing of other related links of precision shafting

Method used

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  • Reliably-connected and adjustable bearing pre-tightening structure and assembling and adjusting method
  • Reliably-connected and adjustable bearing pre-tightening structure and assembling and adjusting method
  • Reliably-connected and adjustable bearing pre-tightening structure and assembling and adjusting method

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Embodiment Construction

[0030] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0031] The invention provides a reliable connection and adjustable bearing preload structure and an assembly and adjustment method.

[0032] Such as figure 1 As shown, the reliable connection and adjustable bearing preload structure of the present invention includes: outer frame 1, bearing 2, inner frame 3, rotating shaft 4, adjustment ring one 5, adjustment ring two 6 and fasteners, etc., wherein the outer Both the frame 1 and the inner frame 3 are closed frame structures, and the two bearings 2 are respectively installed in the torus of the stepped structure on both sides of the outer frame 1. The two toroids of the outer frame 1 have the same size and are coaxial, and the two bearings 2 The outer circular surface and the two toroidal surfaces of the outer frame 1 are interference fit, the inner frame 3 is inside the outer frame 1, the two toroidal surf...

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Abstract

The invention discloses a reliably-connected and adjustable bearing pre-tightening structure and an assembling and adjusting method. Two adjusting rings are installed on the external threaded face of each rotating shaft, a gap is reserved between every two corresponding adjusting rings, the two adjusting rings deform and are fixed to the rotating shafts under the action of fastening force of screws on the two adjusting rings, the gap between every two corresponding adjusting rings is adjustable, and therefore the fastening force of the adjusting rings and the rotating shafts is controlled. When a stabilization platform bears the working load which is in the direction the same as or opposite to the pre-tightening direction of bearings and is larger than the pre-tightening force, threaded pressing rings are reliably connected with the rotating shaft, the connecting force between the threaded pressing rings on the two sides and the rotating shaft can be adjusted according to different working loads, and meanwhile a shafting does not need to be disassembled.

Description

technical field [0001] The invention relates to the technical field of bearing structure design, in particular to a reliably connected and adjustable bearing preload structure and an assembly method. Background technique [0002] The main function of the stable platform is to carry the load and realize the stable rotary motion of the load. The typical rotary shaft system of the stable platform is mainly composed of an inner ring frame, an outer ring frame, a rotating shaft, a bearing, a bearing pressure ring and fasteners. [0003] For bearings in precision machinery, in order to improve their rotation accuracy under working loads, it is necessary to preload the bearings when assembling them. A typical bearing preload structure is to install a washer between the shaft and the inner ring of the bearing. The adjustment of the bearing preload is realized by controlling the thickness of the washer. When the bearing preload needs to be readjusted, the shafting must be dismantled ...

Claims

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Application Information

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IPC IPC(8): F16C35/06F16C41/00F16H57/00
CPCY02E10/72
Inventor 张振华孟凡强胡晓飞周立媛程大林安红印
Owner HEBEI HANGUANG HEAVY IND
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