CN103157976A - Spacing adjusting and measuring method of water turbine blades and marking locating device of water turbine blades - Google Patents
Spacing adjusting and measuring method of water turbine blades and marking locating device of water turbine blades Download PDFInfo
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Abstract
The invention discloses a spacing adjusting and measuring method of water turbine blades and a marking locating device of the water turbine blades. The method comprises the following steps: marking measuring points, measuring the opening spacing of the blades, confirming a standard value Sd of the opening spacing of the blades, calculating the adjustment amount C of the opening spacing of the blades, measuring and calculating the conversion proportionality factor between the water inlet edge displacement and the thicknesses of adjusting shims of each blade and the conversion proportionality factor between the water outlet edge displacement and the thicknesses of adjusting shims of each blade one by one, confirming the modification values of the thicknesses of the adjustment shims of each blade, measuring the thickness values of original adjustment shims of each blade to confirm the thicknesses of new adjustment shims, processing and manufacturing the new adjustment shims according to the thickness values of the new adjustment shims, and replacing the original adjustment shims with the new adjustment shims. The method has the advantages of being convenient to operate, accurate and effective in measuring, calculating and adjusting results, and capable of improving the working efficiency and the running stability of a water turbine. The marking locating device of the water turbine blades is used for marking the measuring points in the mentioned method.
Description
Technical field
The present invention relates to the measurement adjustment of hydraulic turbine blades, relate in particular to the hydraulic turbine blades spacing and adjust measuring method and line positioner thereof.
Background technology
Along with the develop rapidly of power industry, the demand of the power equipments such as the hydraulic turbine is constantly increased to the quality requirement increasingly stringent.Hydraulic turbine blades is as the vital part in the hydraulic turbine, the blade corner accurately evenly, directly have influence on the service life of hydraulic performance, generating efficiency, operation stability and this water wheels unit of whole water wheels unit, this just the hydraulic turbine blades outer corner measurement be subject to the reason that people pay close attention to adjusting.
At present, the device fabrication producer of the hydraulic turbine usually all can be before delivery, the tubular turbine runner is carried out to pre-assembled, and the corresponding driving parts of each blade is performed to key words sorting and position mark, split and be transported to water wheels unit installation scene again, the mark performed during then according to pre-assembled re-assemblies.This mode has reduced the difficulty that the installation of water wheels unit is carried out in job site.But this also easily causes the corner size of each blade of the hydraulic turbine unequal, and difference is larger.For example, when the corner design value of each blade is 27.5 ° ± 0.5 °, No. 1 the blade corner is 27.9 °, No. 4 the blade corner is 27 °, both deviations reach 0.9 °, and after date when one section of hydraulic turbine operation finds that this blade corner deviation is also while causing one of factor that hydraulic turbine operating efficiency is not high, just need to be revised the corner of blade, make the corner of each blade even.Yet, larger owing at the scene the corner of hydraulic turbine blades being carried out to the Measurement accuracy difficulty, cause that fault power time extends, maintenance cost significantly rises.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of easy to operate, it is accurate and effective that result is adjusted in measuring and calculating, and can improve the hydraulic turbine blades spacing of hydraulic turbine operating efficiency and run stability and adjust measuring method, and for the line positioner of the method.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of hydraulic turbine blades spacing is adjusted measuring method, it is characterized in that: comprise the following steps,
1) mark measuring point: the corner of each blade is adjusted to minimum position, on the water inlet limit of each blade, establishes measuring point A, outlet edge is established measuring point B, what take blade during each measuring point of mark is benchmark into and out of the waterside inner edge, and amount is extremely apart from blade inner edge L place, and establishing the rotary wheel of water turbine diameter is D, hydraulic turbine hub diameter is d,
L=（D－d）÷2－L′，80mm≤L′≤800mm；
2) measure the blade aperture pitch: the corner of each blade is adjusted to maximum position, measures successively the interval S of opening between each blade and adjacent blades, described interval S is the distance of the outlet edge measuring point B of each blade water inlet limit measuring point A and adjacent blades;
3) determine blade aperture pitch standard value Sd: the maximum of establishing the described spacing recorded is Smax, and minimum of a value is Smin,
Smin≤Sd≤Smax；
4) determine the adjustment amount C:C=S-Sd of adjacent blades aperture pitch;
5) calculate one by one each blade water inlet limit aperture pitch variable quantity and the conversion proportion coefficient of adjusting spacer thickness and outlet edge aperture pitch variable quantity and the conversion proportion coefficient of adjusting spacer thickness: when the conversion proportion coefficient of the arbitrary blade of measuring and calculating, two blades that are adjacent maintain the original state, lay the position of adjusting pad in tested blade transmission mechanism, an adjustment pad that thickness is δ of interim increase, the span of δ is 4mm≤δ≤8mm, after measuring again that this blade is interim and adjusting and the interval S of adjacent blades opening ', definite blade water inlet limit and outlet edge are adjusted the pitch difference of front and back temporarily respectively, pitch difference corresponding to each limit is conversion proportion coefficient corresponding to each limit with the ratio of the thickness δ that adjusts pad, that is:
The conversion proportion coefficient=(S '-S)/δ;
6) determine the adjustment spacer thickness correction value of each blade: establish the blade that adjustment spacer thickness correction value is δ 1 and adjust the blade that the spacer thickness correction value is δ 2 adjacent, the spacing adjustment amount of the outlet edge of the blade that the water inlet limit of the blade that the thickness correction value is δ 1 and thickness correction value are δ 2 is C12, the water inlet limit conversion proportion coefficient of the blade that the thickness correction value is δ 1 is a1, the outlet edge conversion proportion coefficient of the blade that the thickness correction value is δ 2 is b2, and the computing formula of adjacent blades aperture pitch adjustment amount is:
C12=a1×δ1＋b2×δ2；
List accordingly the calculating formula of each adjacent blades aperture pitch adjustment amount, form the multi head linear equation group, then solve the adjustment spacer thickness correction value of each blade;
7) determine the new adjustment spacer thickness of each blade:
New spacer thickness=former adjustment spacer thickness+adjustment spacer thickness the correction value of adjusting;
8) newly adjust pad according to the new spacer thickness processing and fabricating of adjusting, then with newly adjusting the former adjustment pad of pad replacing.
When carrying out step 6), the adjustment pad that the interim thickness increased is δ, caused blade corner variation is no more than 1 °.
After carrying out step 9), repeating step 2) to step 3), the blade pitch after adjusting is carried out to the school inspection.
A kind of line positioner of adjusting measuring method for above-mentioned hydraulic turbine blades spacing, comprise scale, lower scale and adjust screw rod, described adjustment screw rod two ends are equipped with thread segment, described upper scale is divided into the two ends of adjusting screw rod and is connected with a thread segment respectively with lower scale, and thread segment that upper scale connects is contrary with the thread rotary orientation of lower thread segment that scale connects.
Described upper scale and lower scale are arranged in parallel, and upper scale and lower scale one end be provided with for clamping the bayonet socket of tested blade, and the other end is provided with for the location rib to tested blade location.
Be provided with the mobile guide assembly between described upper scale and lower scale, the guide direction of described mobile guide assembly is parallel with the axis of described adjustment screw rod.
Described mobile guide assembly comprises the forked tail platform be located on scale and is located at the dovetail groove on lower scale, and described forked tail platform is slidedly arranged in described dovetail groove.
Be equipped with the distance scale chi on described upper scale and lower scale.
Compared with prior art, the invention has the advantages that:
Hydraulic turbine blades spacing of the present invention is adjusted measuring method, changed cleverly Calculation Thought, the principle relevant to the blade aperture pitch according to the actual rotational angle of each blade, the blade aperture pitch is calculated to adjustment, the blade aperture pitch is evenly distributed, thereby reach the uniform purpose of actual rotational angle adjustment of each blade, improve hydraulic turbine operating efficiency and run stability.The method has not only realized, at the water turbine units scene, the actual rotational angle of each blade is calculated to adjustment, and easy to operate, and it is accurate and effective that result is adjusted in measuring and calculating.Line positioner of the present invention, in use, take blade working face (curvature is less) as the clamping benchmark, use bayonet socket between scale and lower scale and clamp the water inlet limit of tested blade, make to locate the water inlet limit that rib is close to blade, move radially the line positioner along blade water inlet limit, by scale to wait width mark multiple spot on blade water inlet limit, again gauge point is linked to be to smooth curve (or straight line), take this curve as benchmark, amount is to apart from blade inner edge L place and be labeled as the measuring point into the water limit, can mark other measuring point on blade water inlet limit by this step, when the line positioner is held on to the outlet edge of tested blade, can mark each measuring point of blade outlet edge, this apparatus structure is simple, easy to operate, can meet the requirement of hydraulic turbine blades distance measurement, for realizing hydraulic turbine blades spacing of the present invention, adjusts measuring method technical guarantee is provided.
The accompanying drawing explanation
Fig. 1 is that hydraulic turbine blades spacing of the present invention is adjusted the measuring method flow chart.
Fig. 2 is the plan structure schematic diagram that hydraulic turbine blades spacing of the present invention is adjusted the hydraulic turbine blades that measuring method embodiment adjusts.
Fig. 3 is the schematic diagram that the hydraulic turbine blades spacing is adjusted.
Fig. 4 is the rule main TV structure schematic diagram of positioner of the present invention.
Fig. 5 is the rule left TV structure schematic diagram of positioner of the present invention.
Fig. 6 is the rule plan structure schematic diagram of positioner of the present invention.
Fig. 7 is the rule main TV structure schematic diagram of upper scale in positioner of the present invention.
Fig. 8 is the rule main TV structure schematic diagram of lower scale in positioner of the present invention.
Fig. 9 is the rule use view of positioner of the present invention.
In figure, each label means:
1, upper scale; 2, lower scale; 3, adjust screw rod; 4, forked tail platform; 5, dovetail groove; 6, bayonet socket; 7, location rib.
The specific embodiment
The hydraulic turbine of below take as shown in Figure 2 is example, hydraulic turbine blades spacing of the present invention is adjusted to measuring method and be described in further detail.
A kind of hydraulic turbine blades spacing of the present invention is adjusted measuring method embodiment, the present embodiment carries out the blade adjustment to the hydraulic turbine as shown in Figure 2, and this hydraulic turbine has five blades, is designated as respectively blade 1 to No. 5, as shown in Figure 1, it specifically comprises the following steps the method basic procedure:
1) mark measuring point: the corner of each blade is adjusted to minimum position, all establish 3 groups of measuring points at each blade, the measuring point on each blade water inlet limit is A, A ', A ' ', the measuring point of outlet edge is B, B ', B ' ', what take blade during each measuring point of mark is benchmark into and out of the waterside inner edge, and amount is extremely apart from blade inner edge L place, and establishing the rotary wheel of water turbine diameter is D, hydraulic turbine hub diameter is d,
L=（D－d）÷2－L′，80mm≤L′≤800mm
In the present embodiment when mark A, B measuring point, L '=100mm; When mark A ', B ' measuring point, L '=400mm; When mark A ' ', B ' ' measuring point, L '=700mm; The on the one hand easy assurance of above measuring point mark mode is respectively organized measuring point and is distributed on same circumference, makes results of measuring more accurate; Simple and practical on the other hand, easy to operate, and, organize measuring point by mark more and calculate the precision that can further promote results of measuring.
Take each group measuring point calculates respectively by step 3) to step 7) as basis, makes each blade obtain many groups and adjusts the spacer thickness correction values, and a group of measuring point A, the B of each blade of below take is elaborated to step 3) to step 7) as example.
2) measure the blade aperture pitch: the corner of each blade is adjusted to maximum position, measure successively the interval S of opening between each blade and adjacent blades, interval S is the distance of the outlet edge measuring point B of each blade water inlet limit measuring point A and adjacent blades, mean the spacing of No. 1 blade and No. 2 blade openings in the present embodiment with S12, the spacing that means No. 2 blades and No. 3 blade openings with S23, the spacing that means No. 3 blades and No. 4 blade openings with S34, the spacing that means No. 4 blades and No. 5 blade openings with S45, mean the spacing of No. 5 blades and No. 1 blade opening with S51.
3) determine blade aperture pitch standard value Sd: the maximum of establishing the spacing recorded is Smax, and minimum of a value is Smin, Smin≤Sd≤Smax, and in the present embodiment, Sd gets the mean value of 5 measured aperture pitch S,
Sd=（S12+S23+S34+S45+S51）/5
Using mean value as standard value, can reduce adjusting range, the aperture pitch off-design value after avoiding adjusting is excessively far away.
4) determine the adjustment amount C:C=S-Sd of adjacent blades aperture pitch, the adjustment amount of each blade aperture pitch is:
C12=S12－Sd
C23=S23－Sd
C34=S34－Sd
C45=S45－Sd
C51=S51－Sd
5) calculate one by one each blade water inlet limit aperture pitch variable quantity and the conversion proportion coefficient of adjusting spacer thickness and each blade outlet edge aperture pitch variable quantity and the conversion proportion coefficient of adjusting spacer thickness: when the conversion proportion coefficient of the arbitrary blade of measuring and calculating, two blades that are adjacent maintain the original state, lay the position of adjusting pad in tested blade transmission mechanism, an adjustment pad that thickness is δ of interim increase, the span of δ is 4mm≤δ≤8mm, after measuring again that this blade is interim and adjusting and the interval S of adjacent blades opening ', definite blade water inlet limit and outlet edge are adjusted the pitch difference of front and back temporarily respectively, pitch difference corresponding to each limit is conversion proportion coefficient corresponding to each limit with the ratio of the thickness δ that adjusts pad, if it is S with the spacing of adjacent blades opening that front and back are adjusted on blade water inlet limit temporarily
advance, S '
advance, it is S with the spacing of adjacent blades opening that outlet edge is adjusted front and back temporarily
go out, S '
go out, water inlet limit conversion proportion coefficient is a, outlet edge conversion proportion coefficient is b:
A=(S '
advance-S
advance)/δ
B=(S '
go out-S
go out)/δ
In the present embodiment, δ=6mm, the adjustment pad that this interim thickness increased is δ, caused blade corner variation is no more than 1 °.
6) calculate the adjustment spacer thickness correction value of each blade: establish the blade that adjustment spacer thickness correction value is δ 1, δ 2, δ 3, δ 4, δ 5 adjacent successively, the spacing adjustment amount of the outlet edge of the blade that the water inlet limit of the blade that the thickness correction value is δ 1 and thickness correction value are δ 2 is C12, other is analogized for C23, C34, C45, C51, the water inlet limit conversion proportion coefficient of each blade is a1, a2, a3, a4, a5, the outlet edge conversion proportion coefficient of each blade is b1, b2, b3, b4, b5, and adjacent blades aperture pitch adjustment amount is:
C12=a1×δ1+b2×δ2
C23=a2×δ2+b3×δ3
C34=a3×δ3+b4×δ4
C45=a4×δ4+b5×δ5
C51=a5×δ5+b1×δ1
According to five yuan of top linear function groups, solve the adjustment spacer thickness correction value of each blade:
δ1=(C12－b2×δ2)/a1
δ2=(C23－b3×δ3)/a2
δ3=(C34－b4×δ4)/a3
δ4=(C45－b5×δ5)/a4
δ5=(C51－b1×δ1)/a5
The present embodiment calculates and the results are shown in Table 1 the measurement at each blade measuring point A, B place.
The results of measuring at each blade measuring point of table 1 A, B place
Repeating step 3) can be calculated second group of measuring point A ', B ' and the 3rd group of measuring point A ' ', B ' ' respectively to step 6), thereby make each blade can obtain three groups of thickness correction values, specifically measuring and calculating process does not repeat them here.
7) calculate the new adjustment spacer thickness of each blade: first measure the one-tenth-value thickness 1/10 of the former adjustment pad of each blade,
New spacer thickness=former adjustment spacer thickness+adjustment spacer thickness the correction value of adjusting; Adjust the spacer thickness correction value and get above three groups of mean values of adjusting the spacer thickness correction value, result of calculation is in Table 2:
The new spacer thickness results of measuring of adjusting of table 2
| ? | Former adjustment spacer thickness | The new spacer thickness of adjusting |
| No. 1 |
6 | 7.6 |
| No. 2 |
6 | 2.2 |
| No. 3 |
6 | 7.3 |
| No. 4 |
6 | 3.6 |
| No. 5 |
6 | 9.1 |
8) newly adjust pad according to the new spacer thickness processing and fabricating of adjusting, then, with the new former adjustment pad of pad replacing of adjusting, make blade make adjustment as shown in Figure 3.
9) repeating step 2) to step 3), blade pitch and blade corner after adjusting are carried out to the school inspection, the school inspection the results are shown in Table 3:
Blade pitch school inspection result after table 3 pair adjustment
Maximum spacing difference discovery before and after adjusting in contrast table 3, after adjusting, the maximum spacing difference obviously reduces, and the hydraulic turbine blades spacing distributes more even, and this method of adjustment is practical, effective.
The actual rotational angle of each blade of the hydraulic turbine is inhomogeneous, is difficult at present adjust at the Site for Unit Measurement accuracy actual rotational angle of each blade.The present invention has changed Calculation Thought cleverly, the principle relevant to the blade aperture pitch according to the actual rotational angle of each blade, the blade aperture pitch is calculated to adjustment, the blade aperture pitch is evenly distributed, thereby reach the uniform purpose of actual rotational angle adjustment of each blade, improve hydraulic turbine operating efficiency and run stability.The method has not only realized, at the water turbine units scene, the actual rotational angle of each blade is calculated to adjustment, and easy to operate, and it is accurate and effective that result is adjusted in measuring and calculating.
Fig. 4 to Fig. 9 shows a kind of line positioner embodiment that adjusts measuring method for above-mentioned hydraulic turbine blades spacing of the present invention, this device comprises scale 1, lower scale 2 and adjustment screw rod 3, adjust screw rod 3 two ends and be equipped with thread segment, upper scale 1 is divided into the two ends of adjusting screw rod 3 and is connected with a thread segment respectively with lower scale 2, thread segment that upper scale 1 connects is contrary with the thread rotary orientation of thread segment that lower scale 2 connects, upper scale 1 is arranged in parallel with lower scale 2, and upper scale 1 is provided with the bayonet socket 6 for clamping tested blade with lower scale 2 one ends, the other end is provided with for the location rib 7 to tested blade location.During use, take blade working face (curvature is less) as the clamping benchmark, use the water inlet limit of the tested blade of bayonet socket 6 clamping between scale 1 and lower scale 2, make to locate the water inlet limit that rib 7 is close to blade, move radially the line positioner along blade water inlet limit, by scale to wait width mark multiple spot on blade water inlet limit, again gauge point is linked to be to smooth curve (or straight line), take this curve as benchmark, amount is to apart from blade inner edge L place and be labeled as the measuring point into the water limit, can mark other measuring point on blade water inlet limit by this step, when the line positioner is held on to the outlet edge of tested blade, can mark each measuring point of blade outlet edge, this apparatus structure is simple, easy to operate, can meet the requirement of hydraulic turbine blades distance measurement, for realizing hydraulic turbine blades spacing of the present invention, adjusts measuring method technical guarantee is provided.
The present embodiment further is provided with the mobile guide assembly between upper scale 1 and lower scale 2, the guide direction of mobile guide assembly is parallel with the axis of adjusting screw rod 3, this mobile guide assembly comprises the forked tail platform 4 of being located on scale 1 and is located at the dovetail groove 5 on lower scale 2, and forked tail platform 4 is slidedly arranged in dovetail groove 5.It is more convenient with the adjustment of lower scale 2 that this mobile guide assembly makes upper scale 1, and the mark of each measuring point is more accurately put in place.
The present embodiment further is respectively equipped with the distance scale chi on upper scale 1 and lower scale 2, by distance scale chi mark measuring point more accurately and conveniently.
Although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention.Any those of ordinary skill in the art, in the situation that do not break away from the technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible changes and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention,, all should drop in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to the technology of the present invention essence.
Claims (8)
1. a hydraulic turbine blades spacing is adjusted measuring method, it is characterized in that: comprise the following steps,
1) mark measuring point: the corner of each blade is adjusted to minimum position, on the water inlet limit of each blade, establishes measuring point A, outlet edge is established measuring point B, what take blade during each measuring point of mark is benchmark into and out of the waterside inner edge, and amount is extremely apart from blade inner edge L place, and establishing the rotary wheel of water turbine diameter is D, hydraulic turbine hub diameter is d,
L=（D－d）÷2－L′，80mm≤L′≤800mm；
2) measure the blade aperture pitch: the corner of each blade is adjusted to maximum position, measures successively the interval S of opening between each blade and adjacent blades, described interval S is the distance of the outlet edge measuring point B of each blade water inlet limit measuring point A and adjacent blades;
3) determine blade aperture pitch standard value Sd: the maximum of establishing the described spacing recorded is Smax, and minimum of a value is Smin,
Smin≤Sd≤Smax；
4) determine the adjustment amount C:C=S-Sd of adjacent blades aperture pitch;
5) calculate one by one each blade water inlet limit aperture pitch variable quantity and the conversion proportion coefficient of adjusting spacer thickness and outlet edge aperture pitch variable quantity and the conversion proportion coefficient of adjusting spacer thickness: when the conversion proportion coefficient of the arbitrary blade of measuring and calculating, two blades that are adjacent maintain the original state, lay the position of adjusting pad in tested blade transmission mechanism, an adjustment pad that thickness is δ of interim increase, the span of δ is 4mm≤δ≤8mm, after measuring again that this blade is interim and adjusting and the interval S of adjacent blades opening ', definite blade water inlet limit and outlet edge are adjusted the pitch difference of front and back temporarily respectively, pitch difference corresponding to each limit is conversion proportion coefficient corresponding to each limit with the ratio of the thickness δ that adjusts pad, that is:
The conversion proportion coefficient=(S '-S)/δ;
6) determine the adjustment spacer thickness correction value of each blade: establish the blade that adjustment spacer thickness correction value is δ 1 and adjust the blade that the spacer thickness correction value is δ 2 adjacent, the spacing adjustment amount of the outlet edge of the blade that the water inlet limit of the blade that the thickness correction value is δ 1 and thickness correction value are δ 2 is C12, the water inlet limit conversion proportion coefficient of the blade that the thickness correction value is δ 1 is a1, the outlet edge conversion proportion coefficient of the blade that the thickness correction value is δ 2 is b2, and the computing formula of adjacent blades aperture pitch adjustment amount is:
C12=a1×δ1＋b2×δ2；
List accordingly the calculating formula of each adjacent blades aperture pitch adjustment amount, form the multi head linear equation group, then solve the adjustment spacer thickness correction value of each blade;
7) determine the new adjustment spacer thickness of each blade:
New spacer thickness=former adjustment spacer thickness+adjustment spacer thickness the correction value of adjusting;
8) newly adjust pad according to the new spacer thickness processing and fabricating of adjusting, then with newly adjusting the former adjustment pad of pad replacing.
2. hydraulic turbine blades spacing according to claim 1 is adjusted measuring method, it is characterized in that: when carrying out step 6), and the adjustment pad that the interim thickness increased is δ, the variation of caused blade corner is no more than 1 °.
3. hydraulic turbine blades spacing according to claim 1 and 2 is adjusted measuring method, it is characterized in that: after carrying out step 8), and repeating step 2) to step 3), the blade pitch after adjusting is carried out to the school inspection.
4. a line positioner of adjusting measuring method for the described hydraulic turbine blades spacing of claims 1 to 3 any one, it is characterized in that: comprise scale (1), lower scale (2) and adjust screw rod (3), described adjustment screw rod (3) two ends are equipped with thread segment, described upper scale (1) is divided into the two ends of adjusting screw rod (3) and is connected with a thread segment respectively with lower scale (2), and it is contrary with the thread rotary orientation that lower scale (2) connects thread segment that upper scale (1) connects thread segment.
5. line positioner according to claim 4, it is characterized in that: described upper scale (1) is arranged in parallel with lower scale (2), and upper scale (1) is provided with the bayonet socket (6) for clamping tested blade with lower scale (2) one ends, the other end is provided with for the location rib (7) to tested blade location.
6. line positioner according to claim 5, it is characterized in that: be provided with the mobile guide assembly between described upper scale (1) and lower scale (2), the guide direction of described mobile guide assembly is parallel with the axis of described adjustment screw rod (3).
7. line positioner according to claim 6, it is characterized in that: described mobile guide assembly comprises the forked tail platform (4) of being located on scale (1) and is located at the dovetail groove (5) on lower scale (2), and described forked tail platform (4) is slidedly arranged in described dovetail groove (5).
8. according to the described line positioner of any one in claim 4 to 7, it is characterized in that: on described upper scale (1) and lower scale (2), be equipped with the distance scale chi.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939273A (en) * | 2014-03-29 | 2014-07-23 | 深圳市恩莱吉能源科技有限公司 | Blade electro-hydraulic adjustment method and device of high-oil-pressure control water turbine |
| CN106052634A (en) * | 2016-08-05 | 2016-10-26 | 怀化沅江电力开发有限责任公司洪江水力发电厂 | Level gauge-based water turbine blade rotation angle measurement method |
| CN106908972A (en) * | 2017-05-11 | 2017-06-30 | 四川长虹电器股份有限公司 | The method that Rimless liquid crystal module screen is assembled with surface frame |
| CN116734702A (en) * | 2023-08-07 | 2023-09-12 | 江苏烨培干燥工程有限公司 | Screw blade continuous detection equipment for blade dryer |
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| DE3150773A1 (en) * | 1981-12-22 | 1983-06-30 | Karl-Heinz Dr.-Ing. 7000 Stuttgart Hirschmann | Testing device for testing gear geometry |
| CN1054631A (en) * | 1991-01-24 | 1991-09-18 | 中国科学院声学研究所 | High-speed highway level |
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| CN202083543U (en) * | 2011-04-01 | 2011-12-21 | 中航惠德风电工程有限公司 | Fixture for test fan blade of aero-generator |
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| CN103939273B (en) * | 2014-03-29 | 2015-11-11 | 深圳市恩莱吉能源科技有限公司 | Blade electro-hydraulic adjusting method and device for high-oil-pressure control water turbine |
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