CN1811333A - Coaxiality measuring instrument - Google Patents

Abstract

The coaxiality measuring instrument consists of frame, three slide rules, three angular displacement sensors, two linear displacement sensors, two contact blocks and one data treating and displaying module. The angular relation between two axes is measured by means of the angular displacement sensors, the displacement relation between these two axes is measured by means of the linear displacement sensors, and the coaxiality error between these two axes is then obtained by means of the data treating and displaying module. The present invention has simple structure, easy operation and low cost.

Description

Coaxiality measuring instrument

Technical field

The present invention relates to a kind of surveying instrument, specifically a kind of instrument that is specifically designed to the coaxality measurement of two independent axes.

Background technology

At present, for measuring the right alignment of two independent axes, adopt laser aligner mostly.Laser aligner is inserted on an arbor hole or the outrigger shaft, and measuring principle is a datum line for the light that sends with laser aligner, rotates laser aligner, and laser will mark a circle around shaft core position.By adjusting the X-axis and the Y-axis of laser aligner, laser is finally adjusted to the center of axis.Though this laser measuring apparatus precision height, the price comparison costliness.

Goal of the invention

The objective of the invention is to overcome in the prior art and lowly to require expensive deficiency, a kind of instrument of component of machine coaxality measurement simple in structure, easy to use is provided.

Summary of the invention

The present invention is made up of a frame, three slide rules, three angular displacement sensors, two linear displacement transducers, two contact blocks and a data processes and displays module etc.

On the both sides of frame a feet is installed respectively, display module also is installed on the frame.Be equipped with in frame on the limit of display module a slide rule is installed, the other end of this slide rule is connected with slide rule that linear displacement transducer is used with one by an angular displacement sensor, and the other end of this slide rule is connected with a contact block by another angular displacement sensor again.The other end of frame also is connected with slide rule that linear displacement transducer is used with one, and the other end of this slide rule also is connected with a contact block by an angular displacement sensor.

Record angle between the diaxon by angular displacement sensor, linear displacement transducer records the displacement relation between the diaxon, by data processing module as above data is handled then, detects the right alignment of diaxon up and down, and directly shows coaxiality error.Effective effect

Employing the invention has the beneficial effects as follows: 1) simple in structure, be easy to make, and can effectively detect the right alignment of two independent axes; 2) use simply, easy to operate, low to the technical requirement of survey crew; 3) cost is low.

Description of drawings

Accompanying drawing 1 is a structural representation of the present invention.

Accompanying drawing 2 is measuring principle synoptic diagram of the present invention.

Below in conjunction with accompanying drawing the present invention being further described in detail, is not limitation of the invention.

In Fig. 1, at two right-angle sides of square frame 10 feet is installed respectively, display module 9 also is installed on the frame 10, its function is the coaxiality error numerical value that shows diaxon 1,2.Be equipped with in frame 10 on the right-angle side of display module 9 right angle slide rule 8 is installed, another right-angle side of right angle slide rule 8 is connected with slide rule 5 directly by angular displacement sensor 7.Straight slide rule 5 is used with linear displacement transducer 6.The another side of straight slide rule 5 is connected with V-arrangement contact block 3 by angular displacement sensor 4.Another right-angle side of right angle frame 10 is connected with straight slide rule 12, and straight slide rule 12 is used with linear displacement transducer 11.Straight slide rule 12 another sides are connected with V-arrangement contact block 14 by angular displacement sensor 13.

With axle 1 is reference axis, and in Fig. 2, axle 1 diameter is d ₁, axle 2 diameters are d ₂, the length of contact block is R, in given measurement length L scope two-end-point A, B is measured.Angular displacement sensor 4 records the deviation angle α of axle 2 relative axles 1 in XOY plane by contact block 3; Angular displacement sensor 13 records the axle 1 deviation angle β with respect to axle 2 in the XOZ plane by contact block 14; Angular displacement sensor 7 records the axle 2 combination angle γ with respect to axle 1 in the YOZ plane by the anglec of rotation of slide rule 5 relative slide rules 8.The elongation that linear displacement transducer 6 records slide rule 5 is X ₂, linear displacement transducer 11 records the slide rule 12 long X of being ₁

In XOY plane, the error amount that A is ordered is: $f_{\mathrm{AX}}=|({\mathrm{<figure-callout\; id="2"\; label="X"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">X</figure-callout>}}_2+R\cos \mathrm{\&alpha;}+\frac{{\mathrm{<figure-callout\; id="2"\; label="d"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">d</figure-callout>}}_2}{2})-({\mathrm{<figure-callout\; id="1"\; label="X"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">X</figure-callout>}}_1+R\cos \mathrm{\&gamma;}+\frac{{\mathrm{<figure-callout\; id="1"\; label="d"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">d</figure-callout>}}_1}{2})+\frac{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">L</figure-callout>}}{2}\sin \mathrm{\&alpha;}|,$

The error amount that B is ordered is: $f_{\mathrm{BX}}=|({\mathrm{<figure-callout\; id="2"\; label="X"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">X</figure-callout>}}_2+R\cos \mathrm{\&alpha;}+\frac{{\mathrm{<figure-callout\; id="2"\; label="d"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">d</figure-callout>}}_2}{2})-({\mathrm{<figure-callout\; id="1"\; label="X"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">X</figure-callout>}}_1+R\cos \mathrm{\&gamma;}+\frac{{\mathrm{<figure-callout\; id="1"\; label="d"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">d</figure-callout>}}_1}{2})-\frac{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">L</figure-callout>}}{2}\sin \mathrm{\&alpha;}|\&CenterDot;$

In the YOZ plane, the error amount that A is ordered is: $f_{\mathrm{AZ}}=|\frac{{\mathrm{<figure-callout\; id="2"\; label="d"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">d</figure-callout>}}_2}{2}+R\sin \mathrm{\&gamma;}-\frac{{\mathrm{<figure-callout\; id="2"\; label="d"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">d</figure-callout>}}_2}{2}\cos \mathrm{\&beta;}-\frac{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">L</figure-callout>}}{2}\sin \mathrm{\&beta;}|,$

The error amount that B is ordered is: $f_{\mathrm{BZ}}=|\frac{{\mathrm{<figure-callout\; id="2"\; label="d"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">d</figure-callout>}}_2}{2}+R\sin \mathrm{\&gamma;}-\frac{{\mathrm{<figure-callout\; id="2"\; label="d"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">d</figure-callout>}}_2}{2}\cos \mathrm{\&beta;}+\frac{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">L</figure-callout>}}{2}\sin \mathrm{\&beta;}|\&CenterDot;$

Then the coaxiality error at A point place is: $f_A=2\sqrt{{\mathrm{<figure-callout\; id="2"\; label="f\; AX"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">f</figure-callout>}}_{\mathrm{AX}}^{}+{\mathrm{<figure-callout\; id="2"\; label="f\; AZ"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">f</figure-callout>}}_{\mathrm{AZ}}^{}},$ The coaxiality error at B point place is: $f_B=2\sqrt{{\mathrm{<figure-callout\; id="2"\; label="f\; BX"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">f</figure-callout>}}_{\mathrm{BX}}^{}+{\mathrm{<figure-callout\; id="2"\; label="f\; BZ"\; filenames="A20051004204600051.png"\; state="\{\{state\}\}">f</figure-callout>}}_{\mathrm{BZ}}^{}}\&CenterDot;$

Get wherein that higher value is the coaxiality error of measured axis, show output by data module 9.

By adopting the present invention, can record the right alignment between the diaxon 1,2 simply and easily, and not need the skilled required technology of various existing survey right alignmenies.

Claims (1)

1. coaxiality measuring instrument, constitute and comprise frame (10), slide rule (5), slide rule (8), slide rule (12), angular displacement sensor (4), angular displacement sensor (7), angular displacement sensor (13), linear displacement transducer (6), linear displacement transducer (11), contact block (3), contact block (14) and data processing display module (9), it is characterized in that connecting by angular displacement sensor (4) between described slide rule (5) and the contact block (3), connect by angular displacement sensor (7) between slide rule (5) and the slide rule (8), connect by angular displacement sensor (13) between slide rule (12) and the contact block (14), described linear displacement transducer (6) cooperates with slide rule (5), one end connects with angular displacement sensor (4), and the other end connects with angular displacement sensor (7).Linear displacement transducer (11) cooperates with slide rule (12), and an end connects with angular displacement sensor (13), and the other end is installed on the frame (10).

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