CN201532169U - Measuring device for guide vane of gas turbine - Google Patents
Measuring device for guide vane of gas turbine Download PDFInfo
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- CN201532169U CN201532169U CN 200920271897 CN200920271897U CN201532169U CN 201532169 U CN201532169 U CN 201532169U CN 200920271897 CN200920271897 CN 200920271897 CN 200920271897 U CN200920271897 U CN 200920271897U CN 201532169 U CN201532169 U CN 201532169U
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Abstract
The utility model provides a measuring device (100) for a guide vane of a gas turbine, comprising a measuring support (1), of which the bottom surface forms a measuring reference surface (12), and a dial gauge (2) mounted on the measuring support (1) and comprising a measuring part (3) telescopically extending out vertical to the measuring reference surface (12), the end of the measuring part (3) is provided with a gauge head (4) telescoping toward or far from the measuring reference surface (12), when the measuring device is in the natural state, the distance from the gauge head (4) to the measuring reference surface (12) is set into a preset reference size, wherein, a positioning member (5) is arranged on the measuring support (1), the distance from the far end (52) of the positioning member (5) far from the measuring part (3) to the longitudinal center line (M) of the measuring part (3) is a half (w/2) of the width (W) of a vane of the guide vane of the gas turbine. The measuring device can be used for measuring the different sizes of the different vanes.
Description
Technical field
The utility model relates to a kind of measurement mechanism, and relates more specifically to be used for the universal measurement device of high, medium and low three grades of location of gas turbine engine or non-positioning and guiding blade.
Background technology
Gas turbine engine turbine casing guide vane has high, medium and low three grades, and each level is divided equally location and two kinds of non-location, promptly always has six kinds of turbine casing guide vanes.High, medium and low three grade blade outer shape are roughly the same, but size differs bigger; And the locating blades of each grade blade and non-locating blades be except having an angle difference in shape, and its blade profile is identical.During the processing of guide vane, often need the measurement of testing of a plurality of sizes of blade, and further adjust blade dimensions according to measurement result.In the prior art,, thereby during blade processing, need the anchor clamps that use and cutter, measuring tool more at the different measuring tool of different blades design.
At present, though substituted some special measuring tools with the universal measurement Method and kit for, but still have some critical sizes to need special measuring tool to measure owing to being inconvenient to measure, for example shown in the accompanying drawing 1: 1. blade flank bottom surface S1 or S2 are with respect to the height H of leaf basin minimum point P; 2. distance A between the blade-side wing tip face and B; And 3. blade-side wing tip identity distance from the width dimensions C and the D of grinder fixture datum.Thus, each blade co-exists in six sizes needs to measure.
In existing solution, owing to adopt different measuring tools at different blades, thereby need to make all kinds of special tables and amount to 12, his-and-hers watches spare (being used to set the length of the measurement section of special table) amounts to 6 and angle measuring tool and amounts to 6 and wait above size is measured.This must cause the frock value volume and range of product to increase, and the blade processing cost is too high and also reduced production efficiency.
The utility model content
Propose the utility model for addressing the above problem, and the utility model provides a kind of general measurement mechanism, made it possible to measure the different size of different blades by this measurement mechanism.
According to the utility model, a kind of measurement mechanism that is used for gas turbine guide vane is provided, this measurement mechanism comprises: measurement bracket, have elongated rod shaped structure, the lower surface of described measurement bracket constitutes the measuring basis face; Dial gauge, be installed on the described measurement bracket, described dial gauge comprises the extended measurement section of measuring basis face telescopically (being adjustable length ground) perpendicular to described measurement bracket, place, the end of described measurement section have can towards or away from the flexible gauge outfit of described measuring basis face, at described measurement mechanism in the raw the time, described gauge outfit is set to the preset reference size to the distance of described measuring basis face, wherein, described measurement bracket is provided with and is parallel to described measurement section by the extended keeper of described measuring basis face, described keeper be half of width of blade of the guide vane of gas turbine to the distance of the longitudinal centre line of described measurement section away from the distal end portion of described measurement section.
Preferably, described measurement bracket is provided with and is parallel to described measurement section by the extended a plurality of described keepers of described measuring basis face, these keepers be respectively half of width of blade of the different guide vanes of gas turbine to the distance of the longitudinal centre line of described measurement section away from the distal end portion of described measurement section.
Preferably, described measurement bracket is provided with and is parallel to described measurement section by extended three keepers of described measuring basis face, these three keepers be respectively half of width of blade of high, medium and low three grades of guide vanes of gas turbine to the distance of the longitudinal centre line of described measurement section away from the distal end portion of described measurement section.
Preferably, described keeper is the straight pin that passes the pin-and-hole extension of described measurement bracket, and described pin-and-hole is parallel to described measurement section and extends through described measuring basis face, and described straight pin and described pin-and-hole interference fit.
Preferably, described measurement section extends through the through hole of described measurement bracket, and the side surface perpendicular to described measuring basis face of described measurement bracket is provided with the dismountable screw that extends towards described through hole, and described screw remains on described measurement section in the described through hole.
Preferably, in described through hole, be provided with lining around described measurement section.
According to measurement mechanism of the present utility model, utilizing the roughly the same and blade profile of the outer shape of every grade blade is an identical shared measurement bracket of this characteristics design, replace special-purpose his-and-hers watches spare to come the distance (preset reference size) of setting measurement portion by slip gauge to the measuring basis face of measurement bracket, and at different sizes to be measured, can realize and different size corresponding preset reference dimensions to be measured with the distance that changes measurement section and extend beyond the measuring basis face by set screw, thereby only use a measurement mechanism can realize measurement the different size of different blades.In addition, by on half position, keeper being set corresponding to width of blade along the measurement bracket longitudinal direction, can be when measuring the location survey support, thereby can measure the height of blade flank bottom surface easily with respect to leaf basin minimum point, thereby measuring method is easy, use the few and reduction blade processing cost of measuring tool quantity, enhances productivity.
Description of drawings
By the detailed description below in conjunction with accompanying drawing, above-mentioned and others of the present utility model, feature and other advantage will be understood better, in the accompanying drawing:
Fig. 1 shows the plan view of gas turbine guide vane, wherein shows size A to be measured, B and D;
Fig. 2 schematically shows the floor map of the guide vane of seeing from Fig. 1 left side, wherein shows size H to be measured and C;
Fig. 3 shows the planimetric map according to the measurement mechanism that is used for guide vane of the utility model embodiment; And
Fig. 4 shows the vertical view of the measurement bracket of measurement mechanism shown in Figure 3.
Embodiment
Below in conjunction with accompanying drawing, further describe embodiment of the present utility model.Yet the utility model can be with a lot of multi-form enforcements, the embodiment that should not be understood that to only limit to here and presented.On the contrary, provide these embodiment, made that the disclosure is comprehensive and complete, and all sidedly scope of the present utility model has been conveyed to those skilled in the art.In the accompanying drawing, same reference numerals is represented similar elements.
Fig. 1 shows the plan view of a guide vane of gas turbine, wherein shows size A to be measured, B and D; Fig. 2 schematically shows the floor map of the guide vane of seeing from Fig. 1 left side, wherein shows size H to be measured and C.As shown in Figure 1, long flank section 204 and short flank section 206 that guide vane 20 consists essentially of blade part 202 and is positioned at blade part 202 both sides, as shown in the figure, half of width of blade W represented with W/2, and this W/2 is defined as the distance of leaf basin minimum point P to the end face R3 of long flank section 204, as shown in Figure 2.Wherein, in the process of guide vane 20, the size that needs to measure comprises: the end face T1 of long flank section 204 or T2 and the corresponding end face T3 of short flank section 206 or distance A or the B of T4; The end face R1 of long flank section 204 and the distance C of fixture datum U1; The end face R2 of short flank section 206 and the distance D of fixture datum U2; And the distance H between the leaf basin minimum point P of the bottom surface S2 of the bottom surface S1 of long flank section 204 and short flank section 206 and blade part 202.
According to measurement mechanism of the present utility model, can realize measurement to the above-mentioned size of different guide vanes.Fig. 3 shows the planimetric map according to the measurement mechanism that is used for guide vane 100 of the utility model embodiment; Fig. 4 shows the vertical view of the measurement bracket 1 of measurement mechanism 100 shown in Figure 3.The measurement mechanism that is used for guide vane 100 according to the utility model embodiment comprises dial gauge 2, be fixed on the measurement bracket 1, these dial gauge 2 belows also have measurement section 3, the adjustable in length (will be clearer from following description) that this measurement section 3 is extended from dial gauge 2 belows and stretched out perpendicular to the measuring basis face 12 of measurement bracket 1, have at the place, end of this measurement section 3 can towards or away from the flexible gauge outfit 4 of measuring basis face 12.At measurement mechanism 100 in the raw the time, be that gauge outfit 4 is not when contacting with surface to be measured, gauge outfit 4 to the distance of measuring basis face 12 such as can using slip gauge to be adjusted into and size A to be measured, B, C, D or H corresponding preset reference dimension (also being ideal dimensions), and this moment dial gauge 2 the pointer zeroing.Thus, when measurement mechanism 100 is in the measurement state, be gauge outfit 4 and surface to be measured (aforesaid surperficial T1-T4, R1, R2 or S1, S2) when contacting, dial gauge 2 can depart from zero-bit clockwise or counterclockwise according to the flexible of gauge outfit 4, thereby can draw the deviation of size to be measured and preset reference size and based on this deviation guide vane be carried out corresponding further processing and size calibration.In order to measure the size of different length, the length that extends beyond measuring basis face 12 of measurement section 3 must be adjustable, and promptly the distance between gauge outfit 4 and the measuring basis face 12 must be adjustable.For this reason, in this embodiment, measurement bracket 1 is provided with through hole 16, and the measurement section 3 of dial gauge 2 is passed this through hole 16 extensions, is equipped with the trip bolt 6 that extends towards through hole on the side surface 18 perpendicular to measuring basis face 12 of measurement bracket 1.After utilizing slip gauge to configure distance between gauge outfit 4 and the measuring basis face 12 according to the preset reference size, screw this trip bolt 6 so that measurement section 3 is firmly held in the through hole 16; When needs change the preset reference size promptly change between gauge outfit 4 and the measuring basis face 12 apart from the time, this trip bolt 6 of back-outing, so that measurement section 3 can move and continue to utilize slip gauge to configure distance between gauge outfit 4 and the measuring basis face 12 along through hole 16, and then screw this trip bolt 6.For the stress that reduces 6 pairs of measurement section 3 surfaces of trip bolt and injury-free in moving process, in through hole 16, be embedded with lining 16 around measurement section 3 for the outside surface of protecting measurement section 3.
In this measurement mechanism 100, as shown in Figure 3 and Figure 4, also be provided with keeper 5 on the measurement bracket 1, this keeper 5 can be measured reference field 12 certainly and be parallel to measurement section 3 and extend, and this keeper 5 is half W/2 of the width of blade W of guide vane away from the far-end 52 of measurement section 3 to the distance of the longitudinal centre line M of measurement section 3.Further, this keeper 5 can be the straight pin that passes pin-and-hole 14 extensions that are parallel to measurement section 3, and this straight pin and pin-and-hole 14 interference fit, to prevent that straight pin from coming off and the better location of realizing as described below when measuring from pin-and-hole 14.
Below in conjunction with the use of Fig. 1 to Fig. 4 description according to measurement mechanism 100 of the present utility model.As shown in Figure 1, for size A, B, C and D,, thereby operate fairly simple because it is two distances between the plane.For example, for size A, utilize slip gauge that the distance setting between gauge outfit 4 and the reference surface 12 is the preset reference size, the measurement bracket 1 of measurement mechanism 100 is placed as makes measuring basis face 12 contact with end face T2 then, gauge outfit 4 contacts with end face T4.In measurement,, illustrate that then this size A equates just with the preset reference size if gauge outfit 4 is not extended or shunk; If gauge outfit 4 is extended away from measuring basis face 12, this size A then is described less than the preset reference size, the pointer of dial gauge 2 can deflect and the display error size; And if gauge outfit 4 then illustrates this size A greater than the preset reference size towards 12 contractions of measuring basis face, the pointer of dial gauge 2 meeting court direction deflection and the display error size opposite with above-mentioned deflection.In view of the above, the operator can process accordingly or adjust this guide vane.For making things convenient for dimensional measurement, can use auxiliary stationary fixture to fix this guide vane.The measuring method of size B, C and D is similar, thereby does not give unnecessary details at this.
As mentioned above, size A, B, C and D are the size between the plane, thereby by measuring basis face 12, gauge outfit 4 and preferably can measure easily by anchor clamps; But for size H shown in Figure 2, owing to be distance between certain is put in plane and the curved surface, thereby can not as above simply measure.For this reason, in measurement mechanism 100, measure by means of as shown in Figure 35 pairs of these sizes of keeper H according to the utility model embodiment.Particularly, when measuring, measurement bracket 1 is erected on bottom surface S1 and the S2, measuring basis face 12 contacts with S2 with bottom surface S1, the distal end portion 52 of keeper 5 leans against on the inner face R3 of long flank section 204, because the longitudinal centre line M of distal end portion 52 range observation portions is of a size of half W/2 of the width of blade W of guide vane, thereby make gauge outfit 4 point to leaf basin minimum point P place, the distance between gauge outfit 4 and the measuring basis face 12 is size H.Like this,, prevent this measurement mechanism move left and right, thereby can make gauge outfit 4 accurately point to leaf basin minimum point P, accurately measure the size of H thus by 5 pairs of measurement mechanisms of keeper, 100 location.
Because in the gas turbine guide vane, the outer shape of every grade blade roughly the same and just blade vary in size, thereby can along the longitudinal direction of measurement bracket 1 different keeper 5 be set, thereby realize measurement to the size H of every grade of guide vane according to the width of blade W of different guide vanes.
In sum, make, only need a cover survey instrument can measure five kinds of sizes of three grades of six kinds of different blades according to survey instrument of the present utility model.Simultaneously, replace special-purpose his-and-hers watches spare to carry out his-and-hers watches, can make special-purpose his-and-hers watches spare, significantly reduced the measuring tool value volume and range of product with slip gauge.With prior art use all kinds of special-purpose dial frameworks, his-and-hers watches spare, and the angle measuring tool come above size measurement is compared, the technical solution of the utility model simplicity of design, be easy to make and operation, both guaranteed crudy, significantly reduced the measuring tool value volume and range of product again, reduced processing cost and enhance productivity.
Though the utility model is described in conjunction with being considered to practical example embodiment at present, yet, those skilled in the art will appreciate that the utility model is not limited to disclosed exemplary embodiment.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. a measurement mechanism (100) that is used for gas turbine guide vane is characterized in that, comprising:
Measurement bracket (1) has elongated rod shaped structure, and the lower surface of described measurement bracket (1) constitutes measuring basis face (12);
Dial gauge (2), be installed on the described measurement bracket (1), described dial gauge (2) comprises the extended measurement section of measuring basis face (12) telescopically (3) perpendicular to described measurement bracket (1), place, the end of described measurement section (3) have can towards or away from the flexible gauge outfit (4) of described measuring basis face (12), at described measurement mechanism in the raw the time, described gauge outfit (4) is set to the preset reference size to the distance of described measuring basis face (12), wherein
Described measurement bracket (1) is provided with and is parallel to described measurement section (3) by the extended keeper of described measuring basis face (12) (5), and the distal end portion away from described measurement section (3) of described keeper (5) (52) is the width of blade (W) of the guide vane of gas turbine half (W/2) to the distance of the longitudinal centre line (M) of described measurement section (3).
2. measurement mechanism according to claim 1 (100), it is characterized in that, described measurement bracket (1) is provided with and is parallel to described measurement section (3) by the extended a plurality of described keepers of described measuring basis face (12) (5), and the distal end portion away from described measurement section of these keepers (5) (52) is respectively half of width of blade (W) of the different guide vanes of gas turbine to the distance of the longitudinal centre line (M) of described measurement section (3).
3. measurement mechanism according to claim 2 (100), it is characterized in that, described measurement bracket (1) is provided with and is parallel to described measurement section (3) by extended three keepers of described measuring basis face (12) (5), and the distal end portion away from described measurement section of these three keepers (52) is respectively half of width of blade of high, medium and low three grades of guide vanes of gas turbine to the distance of the longitudinal centre line of described measurement section (3).
4. measurement mechanism according to claim 1 (100), it is characterized in that, the straight pin that described keeper (5) extends for the pin-and-hole (14) that passes described measurement bracket (1), described pin-and-hole (14) is parallel to described measurement section (3) and extends through described measuring basis face (12), and described straight pin and described pin-and-hole (14) interference fit.
5. measurement mechanism according to claim 1 (100), it is characterized in that, described measurement section (3) extends through the through hole (16) of described measurement bracket (1), and the side surface (18) perpendicular to described measuring basis face (12) of described measurement bracket (1) is provided with the dismountable screw (6) that extends towards described through hole (16), and described screw (6) remains on described measurement section (3) in the described through hole (16).
6. measurement mechanism according to claim 5 (100) is characterized in that, is provided with lining (7) around described measurement section (3) in described through hole (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920271897 CN201532169U (en) | 2009-11-20 | 2009-11-20 | Measuring device for guide vane of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920271897 CN201532169U (en) | 2009-11-20 | 2009-11-20 | Measuring device for guide vane of gas turbine |
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| Publication Number | Publication Date |
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| CN201532169U true CN201532169U (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920271897 Expired - Fee Related CN201532169U (en) | 2009-11-20 | 2009-11-20 | Measuring device for guide vane of gas turbine |
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| CN (1) | CN201532169U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979955A (en) * | 2010-09-29 | 2011-02-23 | 南阳飞龙汽车零部件有限公司 | Device for detecting discontinuous conical rotating body angle |
| CN102878911A (en) * | 2012-10-29 | 2013-01-16 | 株洲南方燃气轮机成套制造安装有限公司 | Folium equivalent weight measuring device and method for measuring folium equivalent weight |
| CN106996728A (en) * | 2016-01-25 | 2017-08-01 | 上海大众联合发展车身配件有限公司 | Hand-held dial indicator bracket is used in a kind of sample rack measurement |
| CN108007304A (en) * | 2017-11-23 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of blade edge that measures is to the device and its application method of end standard distance |
-
2009
- 2009-11-20 CN CN 200920271897 patent/CN201532169U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979955A (en) * | 2010-09-29 | 2011-02-23 | 南阳飞龙汽车零部件有限公司 | Device for detecting discontinuous conical rotating body angle |
| CN102878911A (en) * | 2012-10-29 | 2013-01-16 | 株洲南方燃气轮机成套制造安装有限公司 | Folium equivalent weight measuring device and method for measuring folium equivalent weight |
| CN102878911B (en) * | 2012-10-29 | 2015-02-11 | 株洲南方燃气轮机成套制造安装有限公司 | Folium equivalent weight measuring device |
| CN106996728A (en) * | 2016-01-25 | 2017-08-01 | 上海大众联合发展车身配件有限公司 | Hand-held dial indicator bracket is used in a kind of sample rack measurement |
| CN108007304A (en) * | 2017-11-23 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of blade edge that measures is to the device and its application method of end standard distance |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20171120 |