CN103091093A - Suspension clamp device and method for blade static test - Google Patents
Suspension clamp device and method for blade static test Download PDFInfo
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- CN103091093A CN103091093A CN2013100103107A CN201310010310A CN103091093A CN 103091093 A CN103091093 A CN 103091093A CN 2013100103107 A CN2013100103107 A CN 2013100103107A CN 201310010310 A CN201310010310 A CN 201310010310A CN 103091093 A CN103091093 A CN 103091093A
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000725 suspension Substances 0.000 title claims description 55
- 230000003068 static effect Effects 0.000 title abstract description 4
- 238000009434 installation Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract 1
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Abstract
The invention discloses a hanging clamp device for a static test of a blade, which comprises a quadrilateral frame, at least two hanging pieces and a tension sensor, wherein the blade to be tested is arranged in the quadrilateral frame, the hanging pieces are hinged on the quadrilateral frame, and when the static test is carried out on the blade, the hanging pieces are in a vertical state and apply vertical upward tension to the blade through the quadrilateral frame. According to the hanging clamp device and the hanging clamp method, the hanging piece is hinged on the quadrilateral frame, so that the interference between the hanging piece and the frame is avoided, the pulling force applied to the hanging piece can be ensured to completely act on the blade, and the detection precision of the pulling force sensor is obviously improved.
Description
Technical field
The present invention relates to a kind of blade test field of aerogenerator, more particularly, relate to a kind of suspension clipping device for the blade slow test and method.
Background technology
Blade of wind-driven generator need carry out the blade slow test before completing test manufacture, tests with the intensity to blade.At present, test method commonly used is that the heel end plane with blade is connected on the test bed main board face by flange or bearing, the axis that guarantees blade is in respectively horizontality and plumbness, then load onto suspension clamp at the diverse location of blade, loading tensile on each suspension clamp again, read the pulling force size of each suspension centre by pulling force sensor, make the power on sensor reflect truly the suffered pulling force of blade.
When blade is carried out slow test, generally need two kinds of suspension clamps, a kind ofly be in horizontality for blade and use, a kind ofly be in plumbness for blade and use.When testing, the suspension clamp that is on blade tip is provided with suspension centre in phase two sides and top and bottom, when suspension centre is subject to straight up pulling force, certain angle can be rotated in the top and bottom of suspension clamp, make on suspension centre stay cord often and suspension clamp interfere, make suspension centre have in the horizontal direction component, cause the value of thrust of the reality that pulling force that pulling force sensor detects is subject to greater than blade, and can not react truly the pulling force that blade is subject to.
Therefore, how accurately detecting the pulling force that blade is subject to when blade is carried out slow test is those skilled in the art's technical issues that need to address.
Summary of the invention
The purpose of this invention is to provide a kind of suspension clipping device for the blade slow test, to complete efficiently the slow test of blade, accurately measure the suffered pulling force of blade.In addition, another object of the present invention is to provide a kind of method for the blade slow test.
According to an aspect of the present invention, a kind of suspension clipping device for the blade slow test is provided, described suspension clipping device comprises that quadrilateral frame, at least two hang sheet and pulling force sensor, described blades installation to be tested is in described quadrilateral frame, the described sheet that hangs is hinged on described quadrilateral frame, when described blade was carried out slow test, the described sheet that hangs was in vertical state, and by described quadrilateral frame, described blade was applied straight up pulling force.
Preferably, two relative frameworks that the two ends end to end of described blade are faced are loading frame, offer respectively the first mounting hole of dead in line at the equal height place of two described loading frames, each described sheet that hangs is articulated in the outside of described framework vertically by the first web member that matches with described the first mounting hole.
Preferably, described the first web member comprise the first connecting screw rod and match with described the first connecting screw rod a plurality of first hang the sheet nut;
Wherein, described the first connecting screw rod is inserted in the first mounting hole, and each hangs sheet and is enclosed within respectively on described the first connecting screw rod, and is arranged at vertically the outside of loading frame; Described a plurality of first hangs the sheet nut is positioned at the corresponding both sides of hanging sheet at least, to prevent that the described sheet that hangs is along the axially-movable of the first connecting screw rod.
Preferably, be fixedly connected with in described loading frame inboard the nut that cooperatively interacts with described the first connecting screw rod.
Preferably, two relative frameworks that the two ends end to end of described blade are faced are loading frame, both sides at the equal height place of two institute's loading frames all are fixedly connected with supplementary plate, described supplementary plate stretches out vertically with respect to quadrilateral frame, and offering the second mounting hole in the outside that is positioned at described framework of described supplementary plate, the described sheet that hangs is articulated in the outside of described framework vertically by the second web member that matches with described the second mounting hole.
Preferably, described the second web member comprise the second connecting screw rod and match with described the second connecting screw rod a plurality of second hang the sheet nut;
Wherein, described the second connecting screw rod passes the supplementary plate of the both sides of a loading frame that is positioned at the top in two loading frames, the described sheet that hangs is enclosed within the outside that also is arranged at vertically described loading frame on described the second connecting screw rod, described a plurality of second hangs the sheet nut lays respectively at separately both sides of hanging sheet at least, to prevent that the described sheet that hangs is along the axially-movable of the second connecting screw rod.
Preferably, described quadrilateral frame is formed by connecting by four H shaped steel.
Preferably, be provided with stiffening rib between the adjacent frame of described quadrilateral frame.
Preferably, described suspension clipping device also comprises the fixture that is arranged between described blade and described quadrilateral frame, with fixing described blade.
Preferably, described quadrilateral frame is rectangular.
In addition, another aspect of the present invention also provides a kind of method that adopts the blade slow test that above-mentioned suspension clipping device carries out, and comprises the following steps:
A, with the blade horizontal positioned, and make quadrilateral frame be fixed in the periphery of described blade;
B, two are hung on two relative frameworks that sheet is hinged on respectively quadrilateral frame vertically, then pulling force sensor is connected to the described sheet that hangs;
C, at the described pulling force that applies on sheet straight up that hangs, detect by pulling force sensor the pulling force that described blade is subject to;
D, the described sheet that hangs is disassembled, and blade and described quadrilateral frame are vertically placed;
E, hang on the framework being in the top that sheet and pulling force sensor be hinged on described two relative frameworks vertically described;
F, at the described pulling force that applies on sheet straight up that hangs, detect by pulling force sensor the pulling force that described blade is subject to;
G, described suspension clipping device is disassembled from described blade.
Preferably, step B comprises: with two described sheet vertical outsides that are hinged on described loading frame respectively of hanging, then pulling force sensor is connected to the described sheet that hangs by described the first web member.
Preferably, step e comprises: will hang by the second web member the outside that sheet is articulated in a load that is in the top of two loading frames vertically, then pulling force sensor is connected to the described sheet that hangs.
Suspension clipping device and method for the blade slow test provided by the present invention, by the described sheet that hangs is hinged on framework, thereby avoided when hanging sheet and apply pulling force, hang the mutual interference between sheet and framework, hang sheet and can not have in the horizontal direction component in the used time of doing of under tension, the pulling force that assurance is applied on blade can act on blade fully, thereby significantly improved the accuracy of the measured pulling force of pulling force sensor.In addition, when blade other orientation are tested, do not need the replacing suspension clipping device, thereby significantly simplified the flow process of blade slow test.
Description of drawings
By the description of embodiment being carried out below in conjunction with accompanying drawing, these and/or other aspect of the present invention and advantage will become clear and be easier to and understand, wherein:
Fig. 1 is the structural representation of suspension clipping device according to an embodiment of the invention;
Fig. 2 is that schematic diagram is looked on the left side of suspension clipping device shown in Figure 1;
Fig. 3 is the diagram of blades installation to the suspension clipping device when blade is horizontal according to another embodiment of the present invention;
Fig. 4 is that schematic diagram is looked on the left side of suspension clipping device shown in Figure 3;
Fig. 5 is the diagram of blades installation to the suspension clipping device when blade is in vertical position according to another embodiment of the present invention;
Fig. 6 is the schematic top plan view of suspension clipping device shown in Figure 5.
Embodiment
Core of the present invention is to provide a kind of suspension clipping device for the blade slow test and method, and the pulling force so that accurate measurement blade is subject to improves test accuracy.With reference to the accompanying drawings the present invention is described in detail.
See figures.1.and.2, Fig. 1 is the structural representation of suspension clipping device according to an embodiment of the invention; Fig. 2 is that schematic diagram is looked on the left side of suspension clipping device shown in Figure 1.
According to exemplary embodiment of the present invention, a kind of suspension clipping device for the blade slow test is provided, this suspension clipping device comprises that quadrilateral frame, at least two hang sheet 12 (seeing that Fig. 3 is to shown in Figure 6) and pulling force sensor.When carrying out slow test, blade 11 is fixedly installed in quadrilateral frame.
When testing, the position relationship between blade and quadrilateral frame should keep maintaining static.Therefore, two fixtures need to be set between the inboard of blade 11 and quadrilateral frame, so that respectively from opposite both sides with blade 11 clampings and be fixed on quadrilateral frame inside, can have certain cavity 15 at the head and the tail two ends of blade 11 and the inboard of framework like this.
The xsect of each framework of quadrilateral frame is preferably rectangular, can not received the power of horizontal direction to guarantee blade 11.
Two relative frameworks in the face of blade 11 head and the tail two ends of quadrilateral frame are loading frame, are called the first loading frame 1 and the second loading frame 4.Equal height place at two loading frames offers respectively the first mounting hole 10, and these two the first mounting holes 10 have equal diameter and dead in line, that is, the first mounting hole 10 is communicated with inboard and the outside of quadrilateral frames.
When carrying out slow test when blade 11 is in horizontal positioned, need to hang sheet 12 and be installed on quadrilateral frame, hang sheet 12 and can be hinged on by the first web member the outside of loading frame.Like this, when testing, if the run-off the straight of framework up and down of quadrilateral frame or when distortion can guarantee that also hanging sheet 12 is in vertical state, removed the fixed position relation of hanging between sheet 12 and quadrilateral frame, guaranteed that the suffered power of blade 11 is always power straight up.
The form of the first web member is more, wherein a kind of simple, reliable connected mode form can connect for screw rod, for example, as shown in Figure 3 and Figure 4, the first web member can comprise two the first connecting screw rods 13 and a plurality of nut 5 that matches with the first connecting screw rod 13, and this nut 5 can be fixedly connected on the inboard of loading frame.Two the first connecting screw rods 13 are inserted in respectively in two the first mounting holes 10, and screw in the inboard of corresponding loading frame.At least one nut 5 of coordinating with the first connecting screw rod 13 and at least one first is set respectively from the inboard of loading frame and the outside hangs sheet nut 23, in order to the first connecting screw rod 13 is fixed on loading frame, the nut 5 that is positioned at corresponding loading frame inboard can also be welded in the inboard of loading frame, to fix the relative position relation between the first connecting screw rod 13 and loading frame.Hang sheet 12 with two again and be enclosed within respectively on two the first connecting screw rods 13, and it is arranged vertically, like this, two are hung the outside that sheet 12 all is positioned at loading frame.At least one that match with the first connecting screw rod 13 is set respectively from the outside of hanging sheet 12 again first hangs sheet nut 14, hang first and will hang sheet 12 under the effect that screws of sheet nut 14 and 23 and clamp, thereby guaranteed that the axial location relation of hanging between sheet 12 and the first connecting screw rod 13 is changeless, prevented from hanging sheet 12 moving axially along the first connecting screw rod 13.
When blade is carried out the slow test of vertical position, both sides on a loading frame 4 above two loading frames 1 and 4 be in are fixedly connected with respectively supplementary plate, this supplementary plate stretches out vertically with respect to quadrilateral frame, and offer the second mounting hole in the outside that is positioned at framework of supplementary plate, hang sheet and be articulated in vertically the outside of framework by the second web member that matches with described the second mounting hole.
Specifically, the second brace can comprise second connecting screw rod 17 and a plurality of second hang the sheet nut with the second connecting screw rod 17 cooperatively interacts.The second connecting screw rod 17 be inserted in above the second loading frame 4 between two supplementary plates connecting, that is, the second connecting screw rod 17 passes two the second mounting holes.When the second mounting hole at the second connecting screw rod 17 from one of them supplementary plate inserts and do not insert the second mounting hole on the another one supplementary plate, successively at least one second hung sheet nut 19, hang sheet 12 and at least one second and hang sheet nut 24 and be arranged on the second connecting screw rod 17.Again the second connecting screw rod 17 is advanced in the second mounting hole of another supplementary plate, and makes second to hang sheet nut 19 and 24 and be tightened on respectively the both sides of hanging sheet 12, in order to fixedly hang the axial location relation between sheet 12 and the second connecting screw rod 17.Screw in respectively at least one nut 25 at the two ends of the second connecting screw rod 17 again, in order to the relative position relation between the second connecting screw rod 17 and loading frame is fixed, prevent from hanging sheet 12 moving axially along the second connecting screw rod 17.
Need to prove, can arrange one or greater than the auxiliary member of two, as long as supplementary plate has enough intensity, when blade 11 was tested, can not deform got final product.In addition, supplementary plate can also comprise two sheets, that is, and and sheet 6 and sheet 16, as shown in Figure 1.Sheet 6 can be welded on the outside surface of loading frame, can offer at least one through hole 21 on this sheet 6; Sheet 16 is by being installed on fastening bolt 20 in through hole 21 and being connected on sheet 6 and extend to the outside of loading frame, and the second mounting hole namely can be the through hole of the position that extends to the outside that is opened in brace 16 so.
In addition, when the suspension clipping device horizontal positioned, above-mentioned the first mounting hole 10 and the second mounting hole preferably are in identical At The Height.
In addition, the framework of suspension clipping device can also be H shaped steel,, comprises four H shaped steel that is, and a framework 3 in the framework of two loading frames and pair of opposing in addition is fixedly connected with, for example, and can be by the mode of welding.Be connected to being connected of detachability between another framework 8 in the framework of other pair of opposing, namely, can selectablely be connected and dismounting between framework 8 and two loading frames, can adopt particularly fastening bolt 7 respectively two loading frames to be connected with said frame, as shown in Figure 3, stiffening rib 9 can also all be set on loading frame, and fastening bolt 7 is arranged on stiffening rib 9 and framework 8.
In order to improve the intensity of quadrilateral frame, can also between two adjacent frameworks, stiffening rib be set, as shown in fig. 1 be arranged at stiffening rib 2 between the first loading frame 1 and framework 3.
The pulling force sensor of suspension clipping device provided by the present invention is connected by buckle and is hanging on sheet 12, to detect the pulling force that is subject on blade 11.
According to another exemplary embodiment of the present invention, a kind of method that adopts the blade slow test that above-mentioned suspension clipping device carries out is provided, the method comprises the following steps:
S1, with blade 11 horizontal positioned, and make the quadrilateral frame of suspension clipping device be fixed in the periphery of blade 11.
Particularly, can at first regulate fastening bolt 7, with the relation broken that is fixedly connected with between framework 8 and loading frame 1 and 4, again quadrilateral frame is enclosed within the periphery of blade 11, and between blade 11 and quadrilateral frame placing clamp 22, at last that fastening bolt 7 is fastening, with the position relationship between fixed blade 11 and quadrilateral frame.
S2, two are hung on two relative frameworks that sheet 12 is hinged on respectively quadrilateral frame vertically, then pulling force sensor is connected to hangs sheet 12.
Specifically, as shown in Figure 4 and Figure 5, can at first the first connecting screw rod 13 be inserted in respectively in the first mounting hole 10 on the first loading frame 1 and the second loading frame 4, and screw in the nut 5 that is arranged in the loading frame inboard.To first hang sheet nut 23, hang sheet 12 and first and hang sheet nut 14 and be arranged on respectively on the first connecting screw rod 13 successively again, and screw, thereby the relative position relation between the first connecting screw rod 13 and loading frame and hang sheet 12 and the first connecting screw rod 13 between position relationship to axial be fixed.And then pulling force sensor is connected to and hangs sheet 12 by being arranged on the shackle of hanging on sheet 12.
S3, hanging the tensile force f that applies on sheet 12 straight up, detect by pulling force sensor the pulling force that blade 11 is subject to.
In this process, can carry out many group tests, that is, respectively several groups of pulling force that vary in size are applied on blade 11 successively, and detect respectively the stressed of blade 11.
S4, will hang sheet 12 and disassemble, and blade 11 and quadrilateral frame are vertically placed.
Hang between sheet 12 and pulling force sensor and can maintain the connection this moment, next can carry out the slow test of blade when being in vertical state.
S5, will hang on the framework being in the top that sheet 12 and pulling force sensor be hinged on described two relative frameworks vertically.
Specifically, as shown in Figure 5 and Figure 6, the second connecting screw rod 17 is inserted in the second mounting hole on the supplementary plate of loading frame 4 both sides, and will second hang sheet nut 19, hang sheet 12 and second and hang sheet nut 24 and be installed on the second connecting screw rod 17 successively during insertion, and screw second and hang sheet nut 24 and 19, to fix the second connecting screw rod 17 and to hang axial location relation between sheet 12; An end from the second connecting screw rod 17 screws in nut 25 again, and screws, and fixing the relative position relation between the second connecting screw rod 17 and loading frame, and then pulling force sensor is connected to and hangs sheet 12 by being arranged on the shackle of hanging on sheet 12.
S6, hanging the tensile force f that applies on sheet 12 straight up, detect by pulling force sensor the pulling force that blade 11 is subject to.
In this process, can carry out many group tests, that is, respectively several groups of pulling force that vary in size are applied on blade 11 successively, and detect respectively the stressed of blade 11.
S7, suspension clipping device is disassembled from blade 11.
Specifically, can at first unclamp fastening bolt 7, fixture 8 is taken out, just suspension clipping device can be taken off from blade 11.
suspension clipping device and method for the blade slow test provided by the present invention, be hinged on framework by hanging sheet 12, guarantee to draw that to hang be freely in test, thereby avoided when hanging sheet 12 and apply pulling force, hang the mutual interference between sheet 12 and quadrilateral frame, even when up and down framework run-off the straight or distortion, hang sheet 12 and also can remain vertical state, therefore, blade 11 can not exist in the horizontal direction in the used time of doing of under tension, assurance is applied to the pulling force that hangs on sheet 12 and can acts on blade 11 fully, thereby significantly improved the accuracy of the measured pulling force of pulling force sensor.In addition, blade 11 other orientation (as 180 or 270 degree) when testing, are not being needed a whole set of suspension clipping device of replacing, the installation site of only hanging sheet 12 by change can be realized, thereby has significantly simplified the flow process of blade slow test.
Although represented and described some embodiments of the present invention, having it should be appreciated by those skilled in the art that and to modify to these embodiment in the situation that do not break away from principle of the present invention and the spirit that is limited its scope by claim and equivalent thereof.
Claims (13)
1. suspension clipping device that is used for the blade slow test, comprise that quadrilateral frame, at least two hang sheet and pulling force sensor, described blades installation to be tested is in described quadrilateral frame, it is characterized in that, the described sheet that hangs is hinged on described quadrilateral frame, when described blade was carried out slow test, the described sheet that hangs was in vertical state, and by described quadrilateral frame, described blade was applied straight up pulling force.
2. suspension clipping device according to claim 1, it is characterized in that, two relative frameworks that the two ends end to end of described blade are faced are loading frame, offer respectively the first mounting hole of dead in line at the equal height place of two described loading frames, each described sheet that hangs is articulated in the outside of described framework vertically by the first web member that matches with described the first mounting hole.
3. suspension clipping device according to claim 2, is characterized in that, described the first web member comprise the first connecting screw rod and match with described the first connecting screw rod a plurality of first hang the sheet nut;
Wherein, described the first connecting screw rod is inserted in the first mounting hole, and each hangs sheet and is enclosed within respectively on described the first connecting screw rod, and is arranged at vertically the outside of loading frame; Described a plurality of first hangs the sheet nut is positioned at the corresponding both sides of hanging sheet at least, to prevent that the described sheet that hangs is along the axially-movable of the first connecting screw rod.
4. suspension clipping device according to claim 3, is characterized in that, is fixedly connected with in described loading frame inboard the nut that cooperatively interacts with described the first connecting screw rod.
5. suspension clipping device according to claim 1, it is characterized in that, two relative frameworks that the two ends end to end of described blade are faced are loading frame, both sides at the equal height place of two institute's loading frames all are fixedly connected with supplementary plate, described supplementary plate stretches out vertically with respect to quadrilateral frame, and offering the second mounting hole in the outside that is positioned at described framework of described supplementary plate, the described sheet that hangs is articulated in the outside of described framework vertically by the second web member that matches with described the second mounting hole.
6. suspension clipping device according to claim 5, is characterized in that, described the second web member comprise the second connecting screw rod and match with described the second connecting screw rod a plurality of second hang the sheet nut;
Wherein, described the second connecting screw rod passes the supplementary plate of the both sides of a loading frame that is positioned at the top in two loading frames, the described sheet that hangs is enclosed within the outside that also is arranged at vertically described loading frame on described the second connecting screw rod, described a plurality of second hangs the sheet nut lays respectively at separately both sides of hanging sheet at least, to prevent that the described sheet that hangs is along the axially-movable of the second connecting screw rod.
7. suspension clipping device according to claim 1, is characterized in that, described quadrilateral frame is formed by connecting by four H shaped steel.
8. suspension clipping device according to claim 1, is characterized in that, is provided with stiffening rib between the adjacent frame of described quadrilateral frame.
9. suspension clipping device according to claim 1, is characterized in that, described suspension clipping device also comprises the fixture that is arranged between described blade and described quadrilateral frame, with fixing described blade.
10. suspension clipping device according to claim 1, is characterized in that, described quadrilateral frame is rectangular.
11. the method for the blade slow test that an employing suspension clipping device as described in claim 1 to 10 any one carries out is characterized in that, comprises the following steps:
A, with the blade horizontal positioned, and make quadrilateral frame be fixed in the periphery of described blade;
B, two are hung on two relative frameworks that sheet is hinged on respectively quadrilateral frame vertically, then pulling force sensor is connected to the described sheet that hangs;
C, at the described pulling force that applies on sheet straight up that hangs, detect by pulling force sensor the pulling force that described blade is subject to;
D, the described sheet that hangs is disassembled, and blade and described quadrilateral frame are vertically placed;
E, hang on the framework being in the top that sheet and pulling force sensor be hinged on described two relative frameworks vertically described;
F, at the described pulling force that applies on sheet straight up that hangs, detect by pulling force sensor the pulling force that described blade is subject to;
G, described suspension clipping device is disassembled from described blade.
12. method according to claim 11 is characterized in that, step B comprises: with two described sheet vertical outsides that are hinged on described loading frame respectively of hanging, then pulling force sensor is connected to the described sheet that hangs by described the first web member.
13. method according to claim 11 is characterized in that, step e comprises: will hang by the second web member the outside that sheet is articulated in a load that is in the top of two loading frames vertically, then pulling force sensor is connected to the described sheet that hangs.
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| CN201310010310.7A CN103091093B (en) | 2013-01-11 | 2013-01-11 | Suspension clamp device and method for blade static test |
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| CN201310010310.7A CN103091093B (en) | 2013-01-11 | 2013-01-11 | Suspension clamp device and method for blade static test |
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| CN103398840A (en) * | 2013-07-29 | 2013-11-20 | 山东理工大学 | Fan blade fatigue loading and gravity compensation device and test method thereof |
| CN107150946A (en) * | 2017-06-29 | 2017-09-12 | 湖北三江航天江河化工科技有限公司 | A kind of wing plate boom hoisting and its hanging method |
| CN109708967A (en) * | 2018-12-25 | 2019-05-03 | 格力电器（重庆）有限公司 | Cross-flow fan blade hoisting weight detection device and method |
| CN109578223A (en) * | 2019-01-16 | 2019-04-05 | 远景能源（江苏）有限公司 | A kind of device and corresponding detection method of the rigidity for pilot blade |
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