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Device for adjusting elevation of bearing in rotating machinery on line

A technology of rotating machinery and adjusting devices, which is applied in the field of power machinery, can solve problems such as contact surface line contact, and achieve the effects of ensuring support rigidity, simple structure, and easy use

Inactive Publication Date: 2009-11-11
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method facilitates the adjustment of the bearing elevation, and is theoretically feasible, but in practice, there are two main problems: one is that the four slopes must have exactly the same taper, if the taper of a certain slope appears to be processed or installed The error will inevitably lead to the contact between the conical surfaces changing from surface contact to line contact; second, even if the taper of the four inclined surfaces is guaranteed, once there is a slight deviation in the starting and ending positions of the positive and negative threads at both ends of the rotating screw, the contact line contact
Therefore, there is a big problem in practical application to adjust the elevation of bearing support by this method

Method used

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  • Device for adjusting elevation of bearing in rotating machinery on line
  • Device for adjusting elevation of bearing in rotating machinery on line
  • Device for adjusting elevation of bearing in rotating machinery on line

Examples

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Embodiment 1

[0015] Such as figure 2 , image 3 and Figure 4 As shown, this embodiment is made up of vertical vertical board 1, upper slider 3, lower slider 5, lead screw 9, base 12; Left and right two vertical vertical boards 1 are fixed on the base 12, upper slider 3 Cooperate with the vertical riser guide rails 2 of the two vertical risers 1, it can only move vertically along the vertical riser guide rails 2, the bottom of the upper slider 3 is in contact with the lower slider 5; the lower slider 5 is in contact with the upper slide The block 3 and the base 12 cooperate, and can only move horizontally along the upper slider guide rail 4 of the upper slider 3 and the base guide rail 13 of the base 12; Inside the plate 1, the lead screw 9 cooperates with the lower slider 5 through threads, and the lead screw 9 can only rotate but cannot move; the rotation of the lead screw 9 drives the lower slider 5 to move horizontally to the left or right, and the lower slider 5 Drive the upper sl...

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Abstract

The invention discloses a device for adjusting the elevation of a bearing in rotating machinery on line and belongs to the technical field of power machinery. The invention is characterized in that the elevation of a supported body can be changed by the relative movement of cone-shaped slide blocks; the device consists of a vertical plate, an upper slide block, a lower slide block, a lead screw rod, a base and a compressing piece, wherein, the contact surfaces of the upper slide block and the lower slide block have the same taper; the lower slide block is pulled by the lead screw rod, so that the lower slide block can move in the horizontal direction in the slide ways of the upper slide block and the base only; and the upper slide block is pushed by the lower slide block or the compressing piece, so that the upper slide block can move in the vertical direction along the slide way of the vertical plate. By guaranteeing the supporting stiffness of a bearing pedestal, the invention is applicable to the adjustment to the elevation of bearings in rotating machinery, such as engines, generators and compressors; the adjustment of the elevation can be made without shutting down the machine, using a crane or lifting the rotors and the bearing pedestal; and the device has the advantages of simple structure, convenient use and high adjustment accuracy.

Description

technical field [0001] The invention belongs to the technical field of power machinery and relates to an on-line adjustment device for bearing elevation of rotating machinery. Background technique [0002] In rotating machinery, such as engines, generators, compressors, etc., bearings are mainly used to support rotors. The elevation of bearings and the support stiffness of bearing housings have an important impact on the dynamic characteristics of the entire rotating machinery. In the past, the adjustment of the bearing elevation of rotating machinery was completed by adding gaskets under the bearing. Each adjustment required stopping the machine and using a crane to lift the rotor and bearing seat to complete. Sometimes this process had to be repeated several times to meet the requirements. accuracy. Although this ensures the rigidity of the bearing support, it consumes a lot of time and human resources, and the adjustment error of the elevation is also relatively large. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C35/00
Inventor 赵广黄锴王晓放刘占生杨金福
Owner DALIAN UNIV OF TECH
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