CN102393174A - method for measuring center distance of piston - Google Patents
method for measuring center distance of piston Download PDFInfo
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- CN102393174A CN102393174A CN2011102451863A CN201110245186A CN102393174A CN 102393174 A CN102393174 A CN 102393174A CN 2011102451863 A CN2011102451863 A CN 2011102451863A CN 201110245186 A CN201110245186 A CN 201110245186A CN 102393174 A CN102393174 A CN 102393174A
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- piston
- distance
- turning axle
- center
- measuring
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Abstract
The invention provides a method for measuring center distance of a piston. The method comprises the following steps of: first, mounting a rotating shaft into a piston groove by using two symmetric planes at a concave structure of the rotating shaft; rotating the rotating shaft by using a handle so that the concave structure is matched and clamped with the piston groove to assure the coincidence between the center of the piston groove and the axis of the rotating shaft; measuring a distance between the top surface of the piston and a fixed plate by using a dial indicator; finally, obtaining the distance between the axis of the rotating shaft and the top surface of the piston, namely, the distance between the center of the piston groove and the top surface of the piston, namely, the center distance of the piston, through subtracting the distance between the top surface of the piston and the fixed plate from the distance between the axis of the rotating shaft and the fixed plate according to the determined distance between the axis of the rotating shaft and the fixed plate during making a measuring tool. Simplicity and convenience are obtained; multiple measurements are avoided only by once measurement; and measuring errors are overlapped so that the measuring accuracy is largely improved.
Description
Technical field
The present invention relates to the measurement detection range of compressor of air conditioner piston, especially a kind of measuring method of centre distance.
Background technology
Centre is apart from L; As shown in Figure 1, be the distance of piston groove center to piston-top surface, at present in the industry to the measurement more complicated of centre distance; Need to measure nearest distance of piston groove and piston-top surface and distance farthest, then addition again except that in two obtain centre distance distance.This measuring method relative complex needs through twice measurement, and each the measurement is difficult to accurately find measurement point; Cause measuring error bigger; Cause the accumulative total of error during simultaneously through subsequent calculations, so that the centre distance of measuring existence is difficult to obtain accurate data than mistake.
Summary of the invention
The objective of the invention is provides a kind of measuring method simple for the deficiency that solves above-mentioned technology, the measuring method of the centre distance that measuring accuracy is high.
In order to achieve the above object, the measuring method of the centre distance that the present invention designed, the survey instrument of use mainly comprises measuring; Measuring is a V-type groove structure, is provided with fixed head in measuring one side, is provided with turning axle in the other end level of measuring; Side at turning axle is provided with handle, and the axle center of turning axle is vertical with the V-type groove center line of measuring, on turning axle, is provided with the recessed structure that cooperates with piston groove; Recessed structure is in V-type groove center line place, and recessed structure is with after piston cooperates, the axis coinciding of piston groove center and turning axle; Two symmetrical planes are processed at recessed structure place on turning axle, and the distance between two symmetrical planes is provided with through hole less than the distance of piston groove opening part on fixed head; Be provided with lining in the through hole, the lining center line is parallel with the center line of V-type groove, and the axle center of lining center line and turning axle is in the same plane; In lining, be provided with clock gauge, directly over lining on the fixed head, be provided with and hold out against screw, when piston cooperates with turning axle; The V-type groove of measuring contacts with piston, and the gradient of V-type groove is set, and keeps the center line of piston and the central lines of lining; Measuring method: two symmetrical planes that at first utilize the recessed structure place of turning axle; Pack turning axle in the piston groove into; Rotate turning axle through handle again, recessed structure is cooperated with piston groove and tighten assurance piston groove center and turning axle axis coinciding; Utilize clock gauge to measure the distance between piston-top surface to the fixed head again; The axle center of the turning axle of confirming when making survey instrument and the distance between the fixed head deduct the distance between piston-top surface to the fixed head through the distance between axle center to the fixed head of turning axle at last, can obtain the distance between axle center to the piston-top surface of turning axle; Be the distance between piston groove center to the piston-top surface, i.e. the centre distance.
The measuring method of the resulting centre distance of the present invention through survey instrument, keeps centre line and clock gauge central lines; Can improve measuring accuracy, on turning axle, be provided with the recessed structure that cooperates with piston groove simultaneously, the place is provided with symmetrical plane in recessed structure; Can make turning axle be fit into piston groove, the rotating piston groove closely cooperates recessed structure and piston groove again; Because the qualification of survey instrument, when cooperating, the piston groove center overlaps with the axial of turning axle; Make the measurement of centre distance change the measurement of distance of axle center to the piston-top surface of turning axle into, more simple and convenient, and do not influence precision.And because the qualification of survey instrument when making, the distance between the axle center of turning axle to the fixed head confirms, measures the distance between the fixed head of piston-top surface to survey instrument through clock gauge again; Utilize both to subtract each other again, can obtain the centre distance, simple and convenient; And only need pass through one-shot measurement; Avoided repeatedly measuring, the stack of measuring error has improved the precision of measuring greatly.
Description of drawings
Fig. 1 is the structure of piston synoptic diagram;
Fig. 2 is the front view of survey instrument of the present invention;
Fig. 3 is the vertical view of survey instrument of the present invention;
Fig. 4 is the structural representation of the turning axle of survey instrument of the present invention;
Fig. 5 is the structural representation of the xsect of survey instrument of the present invention.
Embodiment
Combine accompanying drawing that the present invention is done further description through embodiment below.
Embodiment 1:
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 5, the measuring method of the centre distance that present embodiment is described, the survey instrument of use mainly comprises measuring 1; Measuring 1 is V-type groove 2 structures, is provided with fixed head 3 in measuring 1 one sides, is provided with turning axle 4 in the other end level of measuring 1; The axle center of turning axle 4 is vertical with V-type groove 2 center lines of measuring 1, on turning axle 4, is provided with the recessed structure 5 that cooperates with piston groove 13, and recessed structure 5 is in V-type groove 2 centerline; And recessed structure 5 is with after piston 6 cooperates, and the axis coinciding of piston groove 13 centers and turning axle 4 is as shown in Figure 4; Be processed into distance between two symmetrical planes, 7, two symmetrical planes 7 at recessed structure 5 places on the turning axle 4 less than the distance of piston groove 13 opening parts, be provided with handle 11 in a side of turning axle 4; On fixed head 3, be provided with through hole 8, be provided with lining 9 in the through hole 8, lining 9 center lines are parallel with the center line of V-type groove 2; And the axle center of lining 9 center lines and turning axle 4 is in the same plane, in lining 9, is provided with clock gauge 10, directly over lining 9 on the fixed head 3, is provided with and holds out against screw 12; Hold out against screw 12 and hold out against clock gauge 10 fixing, when piston 6 cooperated with turning axle 4, the V-type groove 2 of measuring 1 contacted with piston 6; The gradient of V-type groove 2 is set, keeps the center line of piston 6 and the central lines of lining 9.
Measuring method: two symmetrical planes 7 that at first utilize recessed structure 5 places of turning axle 4; Pack turning axle 4 in the piston groove 13 into; Rotate turning axles 4 through handle 11 again, recessed structure 5 is cooperated with piston groove 13 and tighten assurance piston groove 13 centers and turning axle 4 axis coincidings; Measure the distance between piston 6 end faces to the fixed head 3 utilizing clock gauge 10; The axle center of the turning axle of confirming when making survey instrument 4 and the distance between the fixed head 3 deduct the distance between piston 6 end faces to the fixed head 3 through the distance between axle center to the fixed head 3 of turning axle 4 at last, can obtain the distance between axle center to piston 6 end faces of turning axle 4; Be the distance between piston groove 13 centers to piston 6 end faces, i.e. piston 6 centre distance.
Claims (1)
1. the measuring method of a centre distance is characterized in that the survey instrument that uses mainly comprises measuring, and measuring is a V-type groove structure; Be provided with fixed head in measuring one side, be provided with turning axle, be provided with handle in a side of turning axle in the other end level of measuring; The axle center of turning axle is vertical with the V-type groove center line of measuring, on turning axle, is provided with the recessed structure that cooperates with piston groove, and recessed structure is in V-type groove center line place; And recessed structure is with after piston cooperates, the axis coinciding of piston groove center and turning axle, and two symmetrical planes are processed at the recessed structure place on turning axle; Distance between two symmetrical planes is provided with through hole less than the distance of piston groove opening part on fixed head, be provided with lining in the through hole; The lining center line is parallel with the center line of V-type groove; And the axle center of lining center line and turning axle is in the same plane, in lining, is provided with clock gauge, directly over lining on the fixed head, is provided with and holds out against screw; When piston cooperated with turning axle, the distance of V-type groove to centre was consistent with the distance at V-type groove to lining center; Measuring method: two symmetrical planes that at first utilize the recessed structure place of turning axle; Pack turning axle in the piston groove into; Rotate turning axle through handle again, recessed structure is cooperated with piston groove and tighten assurance piston groove center and turning axle axis coinciding; Measure the distance between piston-top surface to the fixed head utilizing clock gauge; The axle center of the turning axle of confirming when making survey instrument and the distance between the fixed head deduct the distance between piston-top surface to the fixed head through the distance between axle center to the fixed head of turning axle at last, can obtain the distance between axle center to the piston-top surface of turning axle; Be the distance between piston groove center to the piston-top surface, i.e. the centre distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102451863A CN102393174B (en) | 2011-08-25 | 2011-08-25 | method for measuring center distance of piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102451863A CN102393174B (en) | 2011-08-25 | 2011-08-25 | method for measuring center distance of piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102393174A true CN102393174A (en) | 2012-03-28 |
| CN102393174B CN102393174B (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102451863A Active CN102393174B (en) | 2011-08-25 | 2011-08-25 | method for measuring center distance of piston |
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| CN (1) | CN102393174B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5465054A (en) * | 1977-11-02 | 1979-05-25 | Hitachi Ltd | Groove width measuring device |
| US5767380A (en) * | 1995-02-23 | 1998-06-16 | Insitut Fur Fertigungstechnik, Technische Universitat Graz | Measuring arrangement and method for checking the geometric and dynamic accuracy of two machine elements displaceable with respect to one another |
| CN201302438Y (en) * | 2008-09-08 | 2009-09-02 | 东莞市金洲齿轮机械有限公司 | A special measuring gauge for simultaneously measuring mounting distance and offset distance of spiral bevel gear pair |
| CN101556134A (en) * | 2009-05-21 | 2009-10-14 | 陈焕春 | Tool for measuring distance between hole axis and cylindrical axis |
-
2011
- 2011-08-25 CN CN2011102451863A patent/CN102393174B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5465054A (en) * | 1977-11-02 | 1979-05-25 | Hitachi Ltd | Groove width measuring device |
| US5767380A (en) * | 1995-02-23 | 1998-06-16 | Insitut Fur Fertigungstechnik, Technische Universitat Graz | Measuring arrangement and method for checking the geometric and dynamic accuracy of two machine elements displaceable with respect to one another |
| CN201302438Y (en) * | 2008-09-08 | 2009-09-02 | 东莞市金洲齿轮机械有限公司 | A special measuring gauge for simultaneously measuring mounting distance and offset distance of spiral bevel gear pair |
| CN101556134A (en) * | 2009-05-21 | 2009-10-14 | 陈焕春 | Tool for measuring distance between hole axis and cylindrical axis |
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| Publication number | Publication date |
|---|---|
| CN102393174B (en) | 2013-11-13 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG YIFENG MACHINERY CO., LTD. Free format text: FORMER NAME: YIFENG MACHINERY PLANT, TONGXIANG CITY |
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| CP01 | Change in the name or title of a patent holder |
Address after: 314512, No. 201, industrial park, Shimen Town, Jiaxing, Zhejiang, Tongxiang Patentee after: Zhejiang Yifeng Machinery Co., Ltd. Address before: 314512, No. 201, industrial park, Shimen Town, Jiaxing, Zhejiang, Tongxiang Patentee before: Yifeng Machinery Plant, Tongxiang City |
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| ASS | Succession or assignment of patent right |
Owner name: TONGXIANG HENGTAI PRECISION MACHINERY CO., LTD. Free format text: FORMER OWNER: ZHEJIANG YIFENG MACHINERY CO., LTD. Effective date: 20141105 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141105 Address after: Tongxiang Heshan Town waterfront village in Jiaxing city of Zhejiang province head 314512 (Tongxiang Yi Feng Machinery Factory Building 5 East) Patentee after: Tongxiang Hengtai Precision Machinery Co., Ltd. Address before: 314512, No. 201, industrial park, Shimen Town, Jiaxing, Zhejiang, Tongxiang Patentee before: Zhejiang Yifeng Machinery Co., Ltd. |