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Vertical rotating machine main shaft axis measurement device

A spindle axis and measuring device technology, applied to measuring devices, instruments, etc., can solve problems such as poor symmetry, bolt deformation and locking, unreliable driving, etc., and achieve the effects of simple operation, accurate positioning, and firm and reliable welds

Active Publication Date: 2019-11-29
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the work of the existing electric axis measuring device, due to the general design of two-point symmetry 180 0 The driving method of the pile structure, this structure has a point of contact that often occurs in the transmission, resulting in unreliable driving and poor symmetry
If a single point of force occurs, the drive plate bolts that should only be subjected to axial force are forced to be subjected to tangential shear force, and the bolts are deformed and locked due to this.

Method used

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  • Vertical rotating machine main shaft axis measurement device
  • Vertical rotating machine main shaft axis measurement device
  • Vertical rotating machine main shaft axis measurement device

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Experimental program
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Effect test

Embodiment

[0055] The specific structure of each part of the vertical rotating machine spindle axis measuring device according to an embodiment of the present invention is as follows: Figure 4-10 As shown, it includes: transmission disc 1, which is made of No. 45 forged steel or other materials of equal strength; key 2 is installed in the groove of clutch disc 4, and is an intermediate transitional transmission part for external drive device 2; clutch disc 4 is an accessory The bolts are placed between the clutch disc 4 and the shaft end to limit the axial force that the clutch disc 4 is subjected to, so that the clutch disc 4 is firmly fixed on the top of the measured large shaft shaft end.

[0056] The clutch disc 4 is made of forged steel with a thickness of 165mm, and there are five grooves on the upper circumference, and five transmission keys 5 are inserted in the grooves (such as figure 2 ), after this key is installed on the clutch disc 4, the external drive mechanism (usually ...

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Abstract

The invention discloses a vertical rotating machine main shaft axis measurement device. The device comprises a rack on which a rack center hole is formed; a plurality of driving devices arranged on the rack, wherein a driving gear is arranged at an output end of each driving device; one driven gear arranged in the rack center hole, wherein the driven gear is engaged with each driving gear, and a gear center hole is formed on the driven gear; and a clutch disc arranged in the gear center hole and used for connecting with a measured main shaft, wherein the clutch disc is in key joint with the driven gear. The influence on the axis measurement device is tiny since the structure adopts the multi-point driving, and the measurement device can continuously work safely and reliably and the runningreliability of the electric axis measurement device is improved.

Description

technical field [0001] The invention belongs to the technical field of auxiliary detection instruments for vertical rotating machines, and relates to a measuring device for the shaft axis of a vertical rotating machine. Background technique [0002] In hydropower plants and other industries, axis measurement requires frequent operations during unit installation and maintenance. Traditionally, there are methods such as manpower axis measurement, crane traction, electric axis measurement device, etc. Electric axis measurement is the mainstream direction of development in recent years. This method has many advantages such as reliable transmission, convenient installation, accurate stop point, and stable speed. [0003] The main shaft of large-scale vertical rotating machinery is generally manufactured in sections. Before and after the installation or maintenance of the equipment, especially the large and medium-sized vertical hydroelectric units, it is necessary to carry out r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/24
CPCG01B21/24
Inventor 马涛李钧
Owner STATE GRID CORP OF CHINA