CN102032858B - Measuring device of centre bore symmetry degree of hydraulic motor driving pin and measuring method thereof - Google Patents

Measuring device of centre bore symmetry degree of hydraulic motor driving pin and measuring method thereof Download PDF

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Publication number
CN102032858B
CN102032858B CN2009101966329A CN200910196632A CN102032858B CN 102032858 B CN102032858 B CN 102032858B CN 2009101966329 A CN2009101966329 A CN 2009101966329A CN 200910196632 A CN200910196632 A CN 200910196632A CN 102032858 B CN102032858 B CN 102032858B
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China
Prior art keywords
trundle
supporting plate
hole
center pit
diameter
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Expired - Fee Related
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CN2009101966329A
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Chinese (zh)
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CN102032858A (en
Inventor
黄均卿
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SHANGHAI UNITED BEARING CO Ltd
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SHANGHAI UNITED BEARING CO Ltd
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Abstract

The invention discloses a measuring device of the centre bore symmetry degree of a hydraulic motor driving pin and a measuring method thereof. The peripheral surface of the driving pin is provided with a centre bore in the radial direction; the measuring device comprises a bottom plate, a meter backing plate, a meter support, a meter, a locating inserted link and a support locating rod, wherein the lower part of the bottom plate is provided with a plurality of supporting legs; the backing plate is vertically fixed on the bottom plate; the upper end surface of the backing plate is provided with a thread blind hole; the front end surface of the backing plate is provided with a step hole and a kidney-shaped slotted hole; the axis of the step hole is crossed with the centre line of the thread blind hole; the kidney-shaped slotted hole is longitudinally arranged beside the right side of the step hole; the meter support is fixed at the upper end of the backing plate; the meter is arranged on the meter support in a mode that a probe of the meter faces downward; the head of the locating inserted link is a sphere of which the diameter is matched with that of the centre bore of the driving pin; the locating inserted link is fixed in the step hole of the backing plate through a nut; and the support locating rod is fixed in the kidney-shaped slotted hole of the backing plate through the nut.

Description

The measurement mechanism and the measuring method thereof of the center pit symmetry of oil motor trundle
Technical field
The present invention relates to a kind of testing apparatus, be specifically related to a kind of measurement mechanism and measuring method thereof of center pit symmetry of oil motor trundle.
Background technology
Oil motor is the equipment that hydraulic pressure can be converted to mechanical energy, with the outside output mechanical energy that rotatablely moves, obtains rotating speed and commentaries on classics distance on the output shaft.Trundle is the strength member on the oil motor; Radially offer a center pit on its outer peripheral face; This center pit symmetry of the outer peripheral face of the trundle of its upper and lower sides relatively is a very important index of processing trundle; It is related to the reliability service of oil motor, therefore needs the symmetry to the trundle measuring center hole after the every processing.Original measurement mechanism is done for the column jacket of repacking and is divided chi, has following deficiency:
1. the manual non-constant measured value that influences of dynamometry of measuring;
2. orientation problem can not solve;
3. detection efficiency is low, the low product quality that influenced of measuring accuracy.
Summary of the invention
The objective of the invention is provides a kind of measurement mechanism and measuring method thereof of center pit symmetry of oil motor trundle in order to overcome the deficiency of prior art, and it can measure the center pit symmetry of oil motor trundle convenient, fast, accurately.
A kind of technical scheme that realizes above-mentioned purpose is: a kind of measurement mechanism of center pit symmetry of oil motor trundle; Radially offer a center pit on the outer peripheral face of said trundle; Said measurement mechanism comprises base plate, instrument supporting plate, instrument support, positioning pluging rod, support backstay and instrument; Wherein
The bottom of said base plate is provided with some spikes;
Said supporting plate is vertically fixed on the base plate; Its upper surface is provided with the tapped blind hole of an installation instrument support; Offer a pre-large post-small stepped hole and a kidney slot hole on its front end face; The axis of said stepped hole and the intersect vertical axis of said tapped blind hole, said kidney slot hole longitudinally is opened in by the right side of stepped hole;
In the tapped blind hole of the upper end of said instrument support through being fixed on supporting plate;
The head of said positioning pluging rod is the sphere of the center-hole diameter coupling of a diameter and said trundle; The middle part outer peripheral face be provided with one with the bulge loop of the stepped hole macropore of supporting plate coupling; The outer peripheral face of second half section is provided with screw thread, and said positioning pluging rod is fixed in the stepped hole of supporting plate through nut;
Said support backstay is a right cylinder for preceding half section, and the second half section is the screw rod of the width coupling in the kidney slot hole on a diameter and the said supporting plate, and preceding half section diameter is greater than the diameter of second half section, and it is fixed in the kidney slot hole of supporting plate through nut;
Said instrument is popped one's head in downwards with it and the mode of the intersect vertical axis of axis and positioning pluging rod is installed on the instrument support.
The measurement mechanism of the center pit symmetry of above-mentioned oil motor trundle wherein, is also offered an adjusting slotted eye on the side, left side in said kidney slot hole and with the kidney slot hole on the front end face of said supporting plate abreast.
The another kind of technical scheme that realizes above-mentioned purpose is: a kind of measuring method of center pit symmetry of oil motor trundle, be executed in above-mentioned measurement mechanism, and said measuring method may further comprise the steps:
Step 1 laterally leans against trundle the front end face of supporting plate and makes positioning pluging rod insert the center pit of trundle;
Step 2, the height of backstay is supported in adjustment, makes the axis of trundle be in horizontality;
Step 3, the front and back position of adjustment instrument support so that meter probe searches out the peak of diameter on the trundle outer peripheral face, read this moment and recorder on measured value, accomplish for the first time and measure;
Step 4 is extracted positioning pluging rod from a side center pit of trundle, with trundle Rotate 180 °, positioning pluging rod is inserted in the center pit of trundle opposite side again, and repeating step three carries out the second time and measures;
Step 5, for the first time measured value carries out arithmetic mean with measured value for the second time.
The measurement mechanism and the measuring method technical scheme thereof of the center pit symmetry of oil motor trundle of the present invention have been adopted; The manual measurement problem that dynamometry is non-constant, the location is inaccurate, detection efficiency is low of original measurement mechanism can be solved, the center pit symmetry of oil motor trundle can be measured convenient, fast, accurately.Measurement mechanism low preparation cost of the present invention in addition.
Description of drawings
Fig. 1 is the structural representation of measurement mechanism of the center pit symmetry of oil motor trundle of the present invention;
Fig. 2 is the structural representation of supporting plate in the measurement mechanism of center pit symmetry of oil motor trundle of the present invention;
Fig. 3 is the working state figure of measurement mechanism of the center pit symmetry of oil motor trundle of the present invention.
Embodiment
In order to understand technical scheme of the present invention better, below through embodiment particularly and combine accompanying drawing at length to explain:
See also Fig. 1 and Fig. 2, radially offer a center pit on the outer peripheral face of oil motor trundle.
The measurement mechanism of the center pit symmetry of oil motor trundle of the present invention comprises base plate 1, instrument supporting plate 2, instrument support 3, instrument 4, positioning pluging rod 5 and supports backstay 6, wherein,
Base plate 1 horizontal positioned and its underpart are provided with some spikes 10;
Supporting plate 2 is vertically fixed on the base plate 1; Its upper surface is provided with a tapped blind hole 21; Offer a pre-large post-small stepped hole 22 and a kidney slot hole 23 on its front end face; The intersect vertical axis of the axis of stepped hole 22 and tapped blind hole 21, kidney slot hole 23 longitudinally are opened in by the right side of stepped hole 22; Also offer an adjusting slotted eye 24 abreast on the side, left side in kidney slot hole 23 and with kidney slot hole 23 on the front end face of supporting plate 2, this planform of regulating slotted eye 24 is identical with kidney slot hole 23;
Instrument support 3 is fixed on the upper end of supporting plate;
Preceding half segment length of positioning pluging rod 5 and the diameter of trundle coupling; Head 50 is the spheroid of the center-hole diameter coupling of a diameter and trundle; The middle part outer peripheral face be provided with one with the bulge loop of stepped hole 22 macropores of supporting plate coupling; The outer peripheral face of second half section is provided with screw thread, and positioning pluging rod 5 is fixed in the stepped hole 22 of supporting plate 2 through nut;
Support backstay 6 preceding half section be right cylinder, the second half section is the screw rod that the width in the kidney slot hole 23 on a diameter and the supporting plate 2 matees, and preceding half section diameter is greater than the diameter of second half section, it is fixed in the kidney slot hole 23 of supporting plate 2 through nut;
Instrument 4 with its probe 40 downwards and the mode of the intersect vertical axis of axis and positioning pluging rod 5 be installed on the instrument support 3, this instrument 4 adopts dried submeter can make the measurement scale division value reach 0.001mm.
In the measurement mechanism of the center pit symmetry of oil motor trundle of the present invention, preceding half section spheroid with head of positioning pluging rod 5 made all size, so that change according to the series of products of trundle.Also can be installed in the bar adjusting slotted eye 24 in addition, with the short slightly trundle of bearing length through supporting backstay 6.
See also Fig. 3 again, the measuring method of the center pit symmetry of oil motor trundle of the present invention is executed in above-mentioned measurement mechanism of the present invention, and this measuring method may further comprise the steps:
Step 1 laterally leans against trundle 3 front end face of supporting plate 2 and makes positioning pluging rod 5 insert the center pit 70 of trundle 7;
Step 2, the height of backstay 6 is supported in adjustment, makes the axis of trundle 7 be in horizontality;
Step 3, the front and back position of adjustment instrument support 3 so that the probe of instrument 4 searches out the peak of diameter on trundle 7 outer peripheral faces, read this moment and recorder 4 on measured value, accomplish for the first time and measure;
Step 4 is extracted positioning pluging rod 5 from a side center pit of trundle 7, with trundle 7 Rotate 180s °, positioning pluging rod 5 is inserted in the center pit of trundles 7 opposite sides again, and repeating step three carries out measurement second time;
Step 5, for the first time measured value A1 carries out arithmetic mean with measured value A2 for the second time, judges the center pit symmetry on the tested trundle, i.e. A=(A1+A2)/2, A is more little, explains that the symmetry of center pit is good more.
Those of ordinary skill in the art will be appreciated that; Above embodiment is used for explaining the present invention; And be not to be used as qualification of the present invention; As long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.

Claims (3)

1. the measurement mechanism of the center pit symmetry of an oil motor trundle; Radially offer a center pit on the outer peripheral face of said trundle; It is characterized in that said measurement mechanism comprises base plate, instrument supporting plate, instrument support, positioning pluging rod, support backstay and instrument
The bottom of said base plate is provided with some spikes;
Said supporting plate is vertically fixed on the base plate; Its upper surface is provided with the tapped blind hole of an installation instrument support; Offer a pre-large post-small stepped hole and a kidney slot hole on its front end face; The axis of said stepped hole and the intersect vertical axis of said tapped blind hole, said kidney slot hole longitudinally is opened in by the right side of stepped hole;
Said instrument support is fixedly connected with this supporting plate through the tapped blind hole of supporting plate upper end;
The head of said positioning pluging rod is the sphere of the center-hole diameter coupling of a diameter and said trundle; The middle part outer peripheral face be provided with one with the bulge loop of the stepped hole macropore of supporting plate coupling; The outer peripheral face of second half section is provided with screw thread, and said positioning pluging rod is fixed in the stepped hole of supporting plate through nut;
Said support backstay is a right cylinder for preceding half section, and the second half section is the screw rod of the width coupling in the kidney slot hole on a diameter and the said supporting plate, and preceding half section diameter is greater than the diameter of second half section, and it is fixed in the kidney slot hole of supporting plate through nut;
Said instrument is popped one's head in downwards with it and the mode of the intersect vertical axis of axis and positioning pluging rod is installed on the instrument support.
2. the measurement mechanism of the center pit symmetry of oil motor trundle according to claim 1 is characterized in that, also offers an adjusting slotted eye abreast on the side, left side in said kidney slot hole and with the kidney slot hole on the front end face of said supporting plate.
3. the measuring method of the center pit symmetry of an oil motor trundle is executed in the described measurement mechanism of claim 1, it is characterized in that said measuring method may further comprise the steps:
Step 1 laterally leans against trundle the front end face of supporting plate and makes positioning pluging rod insert the center pit of trundle;
Step 2, the height of backstay is supported in adjustment, makes the axis of trundle be in horizontality;
Step 3, the front and back position of adjustment instrument support so that meter probe searches out the peak of diameter on the trundle outer peripheral face, read this moment and recorder on measured value, accomplish for the first time and measure;
Step 4 is extracted positioning pluging rod from a side center pit of trundle, with trundle Rotate 180 °, positioning pluging rod is inserted in the center pit of trundle opposite side again, and repeating step three carries out the second time and measures;
Step 5, for the first time measured value carries out arithmetic mean with measured value for the second time.
CN2009101966329A 2009-09-28 2009-09-28 Measuring device of centre bore symmetry degree of hydraulic motor driving pin and measuring method thereof Expired - Fee Related CN102032858B (en)

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CN2009101966329A CN102032858B (en) 2009-09-28 2009-09-28 Measuring device of centre bore symmetry degree of hydraulic motor driving pin and measuring method thereof

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Application Number Priority Date Filing Date Title
CN2009101966329A CN102032858B (en) 2009-09-28 2009-09-28 Measuring device of centre bore symmetry degree of hydraulic motor driving pin and measuring method thereof

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CN102032858B true CN102032858B (en) 2012-08-08

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115922587A (en) * 2022-09-30 2023-04-07 成都飞机工业（集团）有限责任公司 Clamp for measuring symmetry degree of radial hole of bolt shaft

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86205007U (en) * 1986-07-29 1987-09-02 沈阳第一机床厂 Hole concentricity inspection instrument
CN87200753U (en) * 1987-01-23 1987-11-04 天津发电设备厂 Measuring apparatus for symmetry of shaft key groove
DE3630902A1 (en) * 1986-09-11 1988-03-24 Daimler Benz Ag Alignment measuring device for the mutual axial positioning of the wheel planes of wheels which are arranged next to one another with parallel axes
CN1043388A (en) * 1988-12-14 1990-06-27 万洪庚 Axiality measuring apparatus
CN2110206U (en) * 1991-12-24 1992-07-15 南阳防爆电机厂 Symmetry degree detector for shaft key groove
WO1993025863A1 (en) * 1992-06-12 1993-12-23 Oilfield Production Equipment Co., Inc. Orifice eccentricity measurement tool and method of using same
CN201081684Y (en) * 2007-07-11 2008-07-02 许晓华 Pin shaft symmetry test gauge
CN101504267A (en) * 2009-02-26 2009-08-12 淮阴工学院 Key slot symmetry measuring instrument
CN201575786U (en) * 2009-09-28 2010-09-08 上海联合滚动轴承有限公司 Measuring device of center hole symmetry degree of hydraulic motor transmission pin

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86205007U (en) * 1986-07-29 1987-09-02 沈阳第一机床厂 Hole concentricity inspection instrument
DE3630902A1 (en) * 1986-09-11 1988-03-24 Daimler Benz Ag Alignment measuring device for the mutual axial positioning of the wheel planes of wheels which are arranged next to one another with parallel axes
CN87200753U (en) * 1987-01-23 1987-11-04 天津发电设备厂 Measuring apparatus for symmetry of shaft key groove
CN1043388A (en) * 1988-12-14 1990-06-27 万洪庚 Axiality measuring apparatus
CN2110206U (en) * 1991-12-24 1992-07-15 南阳防爆电机厂 Symmetry degree detector for shaft key groove
WO1993025863A1 (en) * 1992-06-12 1993-12-23 Oilfield Production Equipment Co., Inc. Orifice eccentricity measurement tool and method of using same
CN201081684Y (en) * 2007-07-11 2008-07-02 许晓华 Pin shaft symmetry test gauge
CN101504267A (en) * 2009-02-26 2009-08-12 淮阴工学院 Key slot symmetry measuring instrument
CN201575786U (en) * 2009-09-28 2010-09-08 上海联合滚动轴承有限公司 Measuring device of center hole symmetry degree of hydraulic motor transmission pin

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