Method and apparatus of measuring large-sized vertical shaft throw

A vertical shaft, large-scale technology, applied in the field of measurement, can solve problems such as high cost, large measurement error, and stopping at a specified position

Inactive Publication Date: 2003-11-12
李正才
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Problems solved by technology

At present, the commonly used method for measuring the axis is the barring method. When measuring the swing of a large vertical shaft, manual barring cannot be used. Mechanical barring tools or electric barring tools are required. The equipment is heavy and expensive, and it cannot guarantee that the shaft will be stressed in all directions. Even, it cannot guarantee that the axis will stop at the specified position every time, so the measurement error is large and the measurement cost is also high

Method used

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  • Method and apparatus of measuring large-sized vertical shaft throw
  • Method and apparatus of measuring large-sized vertical shaft throw
  • Method and apparatus of measuring large-sized vertical shaft throw

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Embodiment Construction

[0059] The specific implementation, structure, features and effects provided by the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0060] 1. Preparations before measurement of vertical axis swing and combined vertical axis relative swing:

[0061] Tool and instrument preparation: such as figure 1 , an improved dial gauge 1, slightly changing the shape and structure so that the dial gauge can slide freely on the measuring block (without rotation), the internal structure also needs to be changed, and the linear-circular motion of the conventional dial gauge is cancelled. The conversion mechanism is replaced by a winding wheel (connected with the reading gear device by the rotating shaft). The dial indicator has two shorter lead-out lines, and each thread has a wire buckle. The outer dimension of the wire buckle is larger than the size of the outlet. Two different winding methods are respectively ap...

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Abstract

With the two measuring points setup at the vertical shaft to be measured, the altitudes of the measuring points are measured. The four measuring blocks possessing smooth horizontal surfaces are setup at four sides of the vertical shaft to be measured. Moving the reassuring positions in sequence carries out the measurement. The data of the measuring blocks are recorded by using a dial indicator. Combining the previous measured parameter, using the formula calculates the swing or relative swing of the vertical shaft. The equipment used in the invention comprises the dial indicator possessing smooth base, the device including two connected fine wires for setting measuring points and the said measuring blocks for mounting the dial indicator. No bulky barring equipment is needed in the measuring process. Thus, the invention lowers measuring cost and increases the measuring accuracy.

Description

technical field [0001] The invention belongs to the field of measurement, and in particular relates to a method for measuring the axis swing of a vertical shaft and the equipment used therein. Background technique [0002] Many industrial production equipment convert energy through the rotating shaft. The quality of the shaft has a great impact on the life of the equipment, operating efficiency, vibration, and noise. At present, the commonly used method for measuring the axis is the barring method. When measuring the swing of a large vertical shaft, manual barring cannot be used. Mechanical barring tools or electric barring tools are required. The equipment is heavy and expensive, and it cannot guarantee that the shaft will be stressed in all directions. Even, it cannot guarantee that the axis will stop at the specified position every time, so the measurement error is very large, and the measurement cost is also high. Contents of the invention [0003] The problem to be s...

Claims

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Application Information

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IPC IPC(8): G01M99/00
Inventor 李正才
Owner 李正才
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