CN102768004A - Measurement device for concentricity of mounting holes of variable pitch bearing and blade of hubcap - Google Patents
Measurement device for concentricity of mounting holes of variable pitch bearing and blade of hubcap Download PDFInfo
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- CN102768004A CN102768004A CN2012102602711A CN201210260271A CN102768004A CN 102768004 A CN102768004 A CN 102768004A CN 2012102602711 A CN2012102602711 A CN 2012102602711A CN 201210260271 A CN201210260271 A CN 201210260271A CN 102768004 A CN102768004 A CN 102768004A
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Abstract
The invention discloses a measurement device for concentricity of mounting holes of a variable pitch bearing and a blade of a hubcap. The measurement device consists of a main body, a bourdon tube, a telescopic tube and the like, wherein the main body comprises a square tube, a bottom plate and a plug pin; the bourdon tube comprises a guide post, a baffle plate, a small square tube and a spring; the telescopic tube comprises a measurement head, a graded tube and a thrust plate; the measurement head is a semispherical head firmly connected to the end of the graded tube, the graded tube is sleeved outside the guide post and inserted into a cavity of the small square tube through a hole in the baffle plate, the thrust plate is firmly connected to the tail end of the graded tube and placed between the top end of the spring and the baffle plate, the periphery of the thrust plate is larger than the hole in the baffle plate, and scales are marked on the graded tube. The measurement device disclosed by the invention has the advantages of simple structure, relatively low cost, convenience for use, relatively high measurement accuracy and capability of greatly improving measurement efficiency and accuracy. The measurement accuracy is 0.1mm, and the measurement device is very suitable for measuring the concentricity of the mounting holes in the variable pitch bearing and the blade of the hubcap. With the measurement device, the failure of installation of the blade of the hubcap caused by the measurement error can be avoided, and the prior art is substantially improved.
Description
Technical field
The present invention relates to the coaxality measuring mechanism of a kind of wind generating set pitch control bearing and hubcap blade installing port.
Background technology
Starting clean energy resource development tide in the world wide, wind energy has natural advantage as economy and the higher renewable and clean energy resource of security.The installed capacity of China also grows with each passing day, and adding new capacity was in place ranking first in the world in 2009, so wind field lifting task is very heavy.During the wind field lifting, require pitch variable bearings and hubcap blade installing port right alignment to reach certain requirement,, then can increase the installation difficulty of blade, even can cause blade not installed if do not reach this right alignment requirement.Once just had after crane is sling 6 tons of multiple blades, and,, had no alternative and to put down blade, and rethought other ways and install in any case all do not install because pitch variable bearings and hubcap blade installing port right alignment do not reach requirement at wind field.So just caused the waste of human and material resources, financial resources, time etc., its loss also is very serious.When measuring pitch variable bearings and hubcap blade installing port right alignment, existing workshop can only use simple frock--guiding ruler; During measurement, measure four points up and down with guiding ruler, then through range estimation hubcap inwall to the distance of guiding ruler compare above-mentioned survey four points apart from difference; This measuring method can't be measured accurately; Also can't weigh with data, with the difference of survey crew, measurement result is widely different.The guiding ruler instrument adds the error range that range estimation allows can only reach the millimeter level.Can't adapt to the accuracy requirement of pitch variable bearings and hubcap blade installing port right alignment, but make a general survey of prior art, also find to have to be specially adapted for the isolated plant that pitch variable bearings and the coaxality measurement of hubcap blade installing port reach accuracy requirement.
Summary of the invention
The present invention be directed to the deficiency of prior art, the measurement mechanism of a kind of special measurement wind generating set pitch control bearing and hubcap blade installing port right alignment is provided.
The present invention is realized that by following technical scheme pitch variable bearings and hubcap blade installing port coaxality measuring mechanism are made up of main body, bourdon tube and draw-tube etc., it is characterized in that main body comprises: square tube, base plate, latch; Described square tube is terminal firmly to be connected with base plate is vertical, and base is provided with the latch that 2 blade bolt mounting holes with pitch variable bearings match; Bourdon tube comprises: guidepost, baffle plate, little square tube, spring; Bourdon tube firmly is connected with the square tube top is vertical, and described little square tube chamber inner bottom part vertically firmly is connected with guidepost, the peripheral socket spring of guidepost, and little square tube top firmly is connected with covering with holes and uses baffle plate, and guidepost stretches out outside the baffle holes; Draw-tube comprises: measuring head, graduated tube, thrust plate; Measuring head is a semisphere; Firmly be connected in the graduated tube termination, graduated tube is socketed in outside the guidepost, and graduated tube inserts in the little square tube chamber through baffle holes; The graduated tube end firmly is connected with thrust plate; Thrust plate is between spring top and baffle plate, and the thrust plate periphery is greater than baffle holes, and graduated tube is marked with scale.
Beneficial effect of the present invention does, the present invention is simple in structure, and cost is lower, and is easy to use, and measuring accuracy is higher, can improve efficiency of measurement and precision greatly.Measuring accuracy is 0.1mm, is very suitable for the measurement of pitch variable bearings and hubcap blade installing port right alignment.Using this measurement mechanism to avoid because measuring error is former thereby the installation fault of the hubcap blade that causes, is the improvement to a matter of prior art.
Description of drawings
Fig. 1 is pitch variable bearings and hubcap blade installing port coaxality measuring mechanism structural drawing perspective effect figure.
Fig. 2 is pitch variable bearings and hubcap blade installing port coaxality measuring mechanism A portion enlarged drawing.
Fig. 3 is the structural representation of pitch variable bearings and hubcap blade installing port coaxality measuring mechanism bourdon tube.
Fig. 4 is the structural representation of pitch variable bearings and hubcap blade installing port coaxality measuring mechanism draw-tube.
Among the figure, 1. main body, 2. bourdon tube, 3. spring, 4. draw-tube, 5. square tube, 6. base plate, 7. latch, 8. guidepost, 9. baffle plate, 10. little square tube, 11 measuring heads., 12. graduated tubes, 13. thrust plates.
Embodiment
Pitch variable bearings and hubcap blade installing port coaxality measuring mechanism are made up of main body (1), bourdon tube (2) and draw-tube (4) etc., and main body (1) comprising: square tube (5), base plate (6), latch (7); Described square tube (5) is terminal firmly to be connected with base plate (6) is vertical, is provided with the latch (7) that 2 blade bolt mounting holes with pitch variable bearings match bottom the base plate (6); Bourdon tube (2) comprising: guidepost (8), baffle plate (9), little square tube (10), spring (3); Bourdon tube (2) firmly is connected with square tube (5) top is vertical; Described little square tube 10) the chamber inner bottom part vertically firmly is connected with guidepost (8); The peripheral socket spring of guidepost (8) (3), little square tube (10) top firmly is connected with covering with holes with baffle plate (9), and guidepost (8) stretches out outside the hole of baffle plate (9); Draw-tube (4) comprising: measuring head (11), graduated tube (12), thrust plate (13); Measuring head (11) is a semisphere; Firmly be connected in graduated tube (12) termination, graduated tube (12) is socketed in outside the guidepost (8), and graduated tube (12) inserts in little square tube (10) chamber through baffle plate (9) hole; Graduated tube (12) end firmly is connected with thrust plate (13); Thrust plate (13) is between spring (3) top and baffle plate (9), and thrust plate (13) is peripheral greater than baffle holes, and graduated tube (12) is marked with scale.
Between present embodiment square tube (5), base plate (6), the latch (7) between junction, guidepost (8), baffle plate (9), the little square tube (10) between junction, measuring head (11), graduated tube (12), the thrust plate (13) junction be welding.Bourdon tube (2) is at first smeared moderate lubrication oil at welding baffle plate (9) before on guidepost (8), secondly spring (3) is enclosed within on the guidepost (8), is enclosed within guidepost (8) to draw-tube (4) then and goes up compression spring, welds baffle plate (9) at last.
In use, at first with the hand draw-tube that contracts, that is to say draw-tube is moved in bourdon tube; Next latch (7) injects in the blade bolt mounting holes of pitch variable bearings; And the end face of base plate and pitch variable bearings is fitted tightly, the hand that comes up then makes measuring head be close to the inwall of hubcap blade installing port; The scale mark that is alignd with the plate face of baffle plate this moment is the measured value of pitch variable bearings center to hubcap blade installing port inwall distance, and reading of data gets final product.
Measured value-the theoretical value of green scale mark in expansion link high scale line when to be pitch variable bearings with hubcap blade installing port concentric fully; Red scale mark is the ultimate value of pitch variable bearings and hubcap blade right alignment that installing port requires; That is to say the red scale mark in top to be overproof product below the red scale mark of upper and lower, this right alignment is measured after need readjusting again.In addition; This scale is designed to upwards size and successively decreases, its former because: in the measuring process, expansion link can be compressed; It is short more to the distance of hubcap blade installing port inwall to compress the pitch variable bearings center more; The data that read are also just more little, draw-tube in compressed process, also can regard as the main body baffle plate to the measuring head direction of draw-tube near, so the measuring head direction to draw-tube is just more little near size more for baffle plate.
This kind pitch variable bearings and hubcap blade installing port coaxality measurement instrument, simple in structure, cost is lower, and is easy to use, and measuring accuracy is higher, can improve efficiency of measurement.
Claims (1)
1. pitch variable bearings and hubcap blade installing port coaxality measuring mechanism are made up of main body, bourdon tube and draw-tube etc., it is characterized in that main body comprises: square tube, base plate, latch; Described square tube is terminal firmly to be connected with base plate is vertical, and base is provided with the latch that 2 blade bolt mounting holes with pitch variable bearings match; Bourdon tube comprises: guidepost, baffle plate, little square tube, spring; Bourdon tube firmly is connected with the square tube top is vertical, and described little square tube chamber inner bottom part vertically firmly is connected with guidepost, the peripheral socket spring of guidepost, and little square tube top firmly is connected with covering with holes and uses baffle plate, and guidepost stretches out outside the baffle holes; Draw-tube comprises: measuring head, graduated tube, thrust plate; Measuring head is a semisphere; Firmly be connected in the graduated tube termination, graduated tube is socketed in outside the guidepost, and graduated tube inserts in the little square tube chamber through baffle holes; The graduated tube end firmly is connected with thrust plate; Thrust plate is between spring top and baffle plate, and the thrust plate periphery is greater than baffle holes, and graduated tube is marked with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102602711A CN102768004A (en) | 2012-07-26 | 2012-07-26 | Measurement device for concentricity of mounting holes of variable pitch bearing and blade of hubcap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102602711A CN102768004A (en) | 2012-07-26 | 2012-07-26 | Measurement device for concentricity of mounting holes of variable pitch bearing and blade of hubcap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102768004A true CN102768004A (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102602711A Pending CN102768004A (en) | 2012-07-26 | 2012-07-26 | Measurement device for concentricity of mounting holes of variable pitch bearing and blade of hubcap |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0034799A2 (en) * | 1980-02-22 | 1981-09-02 | Georg Fischer Aktiengesellschaft | Test device for disk wheels and/or rim parts |
| CN101413778A (en) * | 2008-10-08 | 2009-04-22 | 上海微电子装备有限公司 | Axiality detection device |
| CN201247040Y (en) * | 2008-08-26 | 2009-05-27 | 永济新时速电机电器有限责任公司 | Measuring tool for detecting axis verticality and height simultaneously |
| CN202048872U (en) * | 2011-02-21 | 2011-11-23 | 宝山钢铁股份有限公司 | Ruler for measuring internal diameter and circumferential longitudinal depth of steel coil |
| CN202182696U (en) * | 2011-07-28 | 2012-04-04 | 国电联合动力技术(连云港)有限公司 | Device for detecting concentricity of wind driven generator hub and air guide sleeve |
| CN202974167U (en) * | 2012-07-26 | 2013-06-05 | 国电联合动力技术(保定)有限公司 | Coaxiality measuring apparatus for pitch-regulated bearing and hubcap blade installing port |
-
2012
- 2012-07-26 CN CN2012102602711A patent/CN102768004A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0034799A2 (en) * | 1980-02-22 | 1981-09-02 | Georg Fischer Aktiengesellschaft | Test device for disk wheels and/or rim parts |
| CN201247040Y (en) * | 2008-08-26 | 2009-05-27 | 永济新时速电机电器有限责任公司 | Measuring tool for detecting axis verticality and height simultaneously |
| CN101413778A (en) * | 2008-10-08 | 2009-04-22 | 上海微电子装备有限公司 | Axiality detection device |
| CN202048872U (en) * | 2011-02-21 | 2011-11-23 | 宝山钢铁股份有限公司 | Ruler for measuring internal diameter and circumferential longitudinal depth of steel coil |
| CN202182696U (en) * | 2011-07-28 | 2012-04-04 | 国电联合动力技术(连云港)有限公司 | Device for detecting concentricity of wind driven generator hub and air guide sleeve |
| CN202974167U (en) * | 2012-07-26 | 2013-06-05 | 国电联合动力技术(保定)有限公司 | Coaxiality measuring apparatus for pitch-regulated bearing and hubcap blade installing port |
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Application publication date: 20121107 |