CN103091093B - For suspension clipping device and the method for blade slow test - Google Patents

For suspension clipping device and the method for blade slow test Download PDF

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Publication number
CN103091093B
CN103091093B CN201310010310.7A CN201310010310A CN103091093B CN 103091093 B CN103091093 B CN 103091093B CN 201310010310 A CN201310010310 A CN 201310010310A CN 103091093 B CN103091093 B CN 103091093B
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sheet
blade
pulling force
frame
screw rod
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CN103091093A (en
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朱祖华
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Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
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Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
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Abstract

The present invention openly can a kind of suspension clipping device for blade slow test, comprise 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 carrying out slow test to described blade, the described sheet that hangs is in vertical state, and by described quadrilateral frame to described blade applying pulling force straight up.Suspension clipping device provided by the present invention and method are hinged on described quadrilateral frame by hanging sheet, thus avoid the interference of hanging between sheet and framework, ensure to be applied to hang pulling force on sheet can and act on completely on blade, significantly improve the accuracy of detection of pulling force sensor.

Description

For suspension clipping device and the method for blade slow test
Technical field
The present invention relates to a kind of leaf assay field of aerogenerator, more particularly, relate to a kind of suspension clipping device for blade slow test and method.
Background technology
Blade of wind-driven generator needs before completing test manufacture to carry out blade slow test, to test the intensity of blade.At present, conventional test method is connected on test bed main board face by the heel end plane of blade by flange or bearing, ensure that the axis of blade is in horizontality and plumbness respectively, then suspension clamp is loaded onto 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, the power on sensor be made to reflect pulling force suffered by blade truly.
When carrying out slow test to blade, generally need two kinds of suspension clamps, one is used for blade and is in horizontality use, and one is used for blade and is in plumbness use.When testing, the suspension clamp be on blade tip is provided with suspension centre in phase two sides and top and bottom, when suspension centre is subject to pulling force straight up, certain angle can be rotated in the top and bottom of suspension clamp, make the stay cord on suspension centre often and suspension clamp interfere, make suspension centre there is component in the horizontal direction, the pulling force causing pulling force sensor to detect is greater than the value of thrust of the reality that blade is subject to, and can not react the pulling force that blade is subject to truly.
Therefore, how accurately detecting the pulling force that blade is subject to when carrying out slow test to blade is those skilled in the art's technical issues that need to address.
Summary of the invention
The object of this invention is to provide a kind of suspension clipping device for blade slow test, to complete the slow test of blade efficiently, accurately measure the pulling force suffered by blade.In addition, another object of the present invention is to provide a kind of method for blade slow test.
According to an aspect of the present invention, a kind of suspension clipping device for blade slow test is provided, described suspension clipping device comprise 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 carrying out slow test to described blade, described in hang sheet and be in vertical state, and by pulling force that described quadrilateral frame applies straight up to described blade.
Preferably, the two ends end to end of described blade faced by two relative frameworks be loading frame, offer the first mounting hole of dead in line at the identical At The Height of two described loading frames respectively, described in each, hang sheet is articulated with described framework vertically outside by the first web member matched with described first mounting hole.
Preferably, described first web member comprise the first connecting screw rod and match with described first connecting screw rod multiple first hang sheet nut;
Wherein, described first connecting screw rod is inserted in the first mounting hole, and each sheet that hangs is enclosed within described first connecting screw rod respectively, and is arranged at the outside of loading frame vertically; Described multiple first hangs sheet nut is at least positioned at the corresponding both sides of hanging sheet, described in preventing, hang the axially-movable of sheet along the first connecting screw rod.
Preferably, inside described loading frame, be fixedly connected with the nut cooperatively interacted with described first connecting screw rod.
Preferably, the two ends end to end of described blade faced by two relative frameworks be loading frame, all supplementary plate is fixedly connected with in the both sides of the identical At The Height of two institute's loading frames, described supplementary plate stretches out vertically relative to quadrilateral frame, and offer the second mounting hole in the outside being positioned at described framework of described supplementary plate, described in hang sheet is articulated with described framework vertically outside by the second web member matched with described second mounting hole.
Preferably, described second web member comprise the second connecting screw rod and match with described second connecting screw rod multiple second hang sheet nut;
Wherein, described second connecting screw rod passes the supplementary plate of the both sides of the loading frame being positioned at top in two loading frames, the described sheet that hangs is enclosed within the outside described second connecting screw rod being also arranged at vertically described loading frame, described multiple second hangs sheet nut at least lays respectively at the respective both sides of hanging sheet, described in preventing, hang the axially-movable of sheet along the second connecting screw rod.
Preferably, described quadrilateral frame is formed by connecting by four H profile steel.
Preferably, between the adjacent frame of described quadrilateral frame, stiffening rib is provided with.
Preferably, described suspension clipping device also comprises the fixture be 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 additionally provides a kind of method of the blade slow test adopting above-mentioned suspension clipping device to carry out, and comprises the following steps:
A, by blade horizontal positioned, and quadrilateral frame is made to be fixed on the periphery of described blade;
B, two are hung sheet and be hinged on vertically respectively on the relative framework of two of quadrilateral frame, then hang sheet described in being connected to by pulling force sensor;
C, hang described pulling force sheet applied straight up, detect by pulling force sensor the pulling force that described blade is subject to;
D, the described sheet that hangs to be disassembled, and blade and described quadrilateral frame are vertically placed;
E, described sheet and the pulling force sensor of hanging is hinged on the framework being in top of described two opposing frame vertically;
F, hang described pulling force sheet applied straight up, detect by pulling force sensor the pulling force that described blade is subject to;
G, described suspension clipping device to be disassembled from described blade.
Preferably, step B comprises: will hang the sheet outside being hinged on described loading frame vertical respectively described in two by described first web member, then hang sheet described in being connected to by pulling force sensor.
Preferably, step e comprises: will hang sheet and be articulated with vertically the outside of a load being in top of two loading frames by the second web member, then hang sheet described in being connected to by pulling force sensor.
Suspension clipping device for blade slow test provided by the present invention and method, by the described sheet that hangs is hinged on framework, thus avoid to hang sheet apply pulling force time, hang the mutual interference between sheet and framework, hang sheet and can not there is component in the horizontal direction when the effect of under tension, ensure that the pulling force be applied on blade can act on blade completely, thus significantly improve the accuracy of the pulling force measured by pulling force sensor.In addition, when testing other orientation of blade, not needing to change suspension clipping device, thus significantly simplify the flow process of blade slow test.
Accompanying drawing explanation
By the description carried out embodiment below in conjunction with accompanying drawing, these and/or other aspect of the present invention and advantage will become clear and be easier to 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 a left side for the suspension clipping device shown in Fig. 1;
Fig. 3 be according to another embodiment of the present invention when blade is horizontal blades installation to the diagram on suspension clipping device;
Fig. 4 is that schematic diagram is looked on a left side for the suspension clipping device shown in Fig. 3;
Fig. 5 be according to another embodiment of the present invention when blade is in vertical position blades installation to the diagram on suspension clipping device;
Fig. 6 is the schematic top plan view of the suspension clipping device shown in Fig. 5.
Embodiment
Core of the present invention is to provide a kind of suspension clipping device for blade slow test and method, to measure the pulling force that blade is subject to accurately, 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 a left side for the suspension clipping device shown in Fig. 1.
According to exemplary embodiment of the present invention, provide a kind of suspension clipping device for blade slow test, this suspension clipping device comprise quadrilateral frame, at least two hang sheet 12 (see shown in Fig. 3 to Fig. 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, need between blade 11 and the inner side of quadrilateral frame, arrange two fixtures, to be clamped by blade 11 from contrary both sides respectively and to be fixed on quadrilateral frame inside, certain cavity 15 can be there is at the head and the tail two ends of blade 11 and the inner side of framework like this.
The xsect of each framework of quadrilateral frame is preferably rectangular, to ensure that blade 11 can not by the power receiving horizontal direction.
Hanging sheet 12 is hinged on quadrilateral frame, when carrying out slow test to blade, hanging sheet 12 and being in vertical state all the time, and by pulling force that quadrilateral frame applies straight up to blade 11.
The framework relative in the face of blade 11 head and the tail two of two ends of quadrilateral frame is loading frame, is called the first loading frame 1 and the second loading frame 4.Offer the first mounting hole 10 respectively at the identical At The Height of two loading frames, 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 the inner side and outer side of quadrilateral frame.
When carrying out slow test when being in horizontal positioned to blade 11, need to hang sheet 12 and be installed on quadrilateral frame, hang sheet 12 is hinged on loading frame outside by the first web member.Like this, when testing, if when the upper and lower frames run-off the straight of quadrilateral frame or distortion, also can ensure that hanging sheet 12 is in vertical state, relieve the fixed position relation of hanging between sheet 12 and quadrilateral frame, the power that ensure that suffered by 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, such as, as shown in Figure 3 and Figure 4, first web member can comprise two the first connecting screw rods 13 and multiple nut 5 matched with the first connecting screw rod 13, and this nut 5 can be fixedly connected on the inner side of loading frame.Two the first connecting screw rods 13 are inserted in two the first mounting holes 10 respectively, and screw in the inner side of corresponding loading frame.At least one nut 5 of coordinating with the first connecting screw rod 13 is set respectively from the inner side and outer side of loading frame and at least one first hangs sheet nut 23, the first connecting screw rod 13 is fixed on loading frame, the nut 5 be positioned at inside corresponding loading frame can also be welded in the inner side of loading frame, to fix the relative position relation between the first connecting screw rod 13 and loading frame.Two are hung sheet 12 to be enclosed within respectively on two the first connecting screw rods 13 again, and make it arrange vertically, like this, two are hung the outside that sheet 12 is all 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 and first hangs sheet nut 14, sheet 12 will be hung under hanging the effect that screws of sheet nut 14 and 23 first to clamp, thus ensure that the axial location relation of hanging between sheet 12 and the first connecting screw rod 13 is changeless, prevent from hanging sheet 12 moving axially along the first connecting screw rod 13.
When carrying out the slow test of vertical position to blade, both sides on a loading frame 4 above two loading frames 1 with 4 be in are fixedly connected with supplementary plate respectively, this supplementary plate stretches out vertically relative to quadrilateral frame, and offer the second mounting hole in the outside being positioned at framework of supplementary plate, hang sheet is articulated with framework vertically outside by the second web member matched with described second mounting hole.
Specifically, the second brace can comprise second connecting screw rod 17 and cooperatively interact with the second connecting screw rod 17 multiple second hang sheet nut.Second connecting screw rod 17 is inserted between two supplementary plates of connection on the second loading frame 4 of top, that is, the second connecting screw rod 17 is through two the second mounting holes.To insert from the second mounting hole one of them supplementary plate at the second connecting screw rod 17 and when not inserting the second mounting hole on another one supplementary plate, successively at least one second hung sheet nut 19, hang sheet 12 and at least one second hangs 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 to be tightened on the both sides of hanging sheet 12 respectively, fixedly to hang the axial location relation between sheet 12 and the second connecting screw rod 17.Screw at least one nut 25 respectively at the two ends of the second connecting screw rod 17 again, 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.
It should be noted that, one or be greater than the auxiliary member of two can being arranged, as long as supplementary plate has enough intensity, when testing blade 11, can not deform.In addition, supplementary plate can also comprise two sheets, that is, 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 to be connected on sheet 6 by the fastening bolt 20 be installed in through hole 21 and to extend to the outside of loading frame, and so namely the second mounting hole can be the through hole extending to the position in outside being opened in brace 16.
In addition, when suspension clipping device horizontal positioned, above-mentioned first mounting hole 10 and the second mounting hole are preferably in identical At The Height.
In addition, the framework of suspension clipping device can also be H profile steel, that is, comprise four H profile steel, and two loading frames are fixedly connected with a framework 3 in the framework of other pair of opposing, such as, and can by the mode of welding.And the connection between another framework 8 in the framework of other pair of opposing is the connection of detachability, namely, can selectablely be connected and dismounting between framework 8 with two loading frames, fastening bolt 7 can be adopted particularly to be connected with said frame by two loading frames respectively, as shown in Figure 3, can also all arrange stiffening rib 9 on loading frame, fastening bolt 7 is arranged on stiffening rib 9 and framework 8.
In order to improve the intensity of quadrilateral frame, stiffening rib can also be set between adjacent two frameworks, be arranged at the stiffening rib 2 between the first loading frame 1 and framework 3 as shown in Figure 1.
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 blade 11 is subject to.
According to another exemplary embodiment of the present invention, provide a kind of method of the blade slow test adopting above-mentioned suspension clipping device to carry out, the method comprises the following steps:
S1, by blade 11 horizontal positioned, and the quadrilateral frame of suspension clipping device is made to be fixed on the periphery of blade 11.
Particularly, can first regulate fastening bolt 7, relation broken will be fixedly connected with between framework 8 with 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, finally by fastening for fastening bolt 7, with the position relationship between fixed blade 11 and quadrilateral frame.
S2, two are hung sheet 12 and be hinged on vertically respectively on the relative framework of two of quadrilateral frame, then pulling force sensor is connected to hangs sheet 12.
Specifically, as shown in Figure 4 and Figure 5, first the first connecting screw rod 13 can 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 be arranged in inside loading frame.Hang sheet nut 23 by first successively again, hang sheet 12 and first and hang sheet nut 14 and be arranged on the first connecting screw rod 13 respectively, and screw, thus relative position relation between the first connecting screw rod 13 and loading frame and the position relationship to axial hung between sheet 12 and the first connecting screw rod 13 are fixed.And then pulling force sensor is connected to hangs sheet 12 by being arranged on the shackle of hanging on sheet 12.
S3, hanging tensile force f sheet 12 applied straight up, detecting by pulling force sensor the pulling force that blade 11 is subject to.
In this process, can carry out organizing test, that is, the pulling force varied in size several groups is respectively applied on blade 11 successively more, and detects the stressed of blade 11 respectively.
S4, sheet 12 will be hung disassemble, and blade 11 and quadrilateral frame are vertically placed.
Now hang between sheet 12 and pulling force sensor and can maintain the connection, next can carry out slow test when blade is in vertical state.
S5, to be hinged on hanging sheet 12 and pulling force sensor vertically on the framework being in top of described two opposing frame.
Specifically, as shown in Figure 5 and Figure 6, second connecting screw rod 17 is inserted in the second mounting hole on the supplementary plate of loading frame 4 both sides, and hang sheet nut 19 by second successively during insertion, hang sheet 12 and second and hang sheet nut 24 and be installed on the second connecting screw rod 17, and screw second and hang sheet nut 24 and 19, with the axial location relation of fixing the second connecting screw rod 17 and hang between sheet 12; Screw in nut 25 from one end of the second connecting screw rod 17 again, and screw, to fix the relative position relation between the second connecting screw rod 17 and loading frame, and then pulling force sensor is connected to hangs sheet 12 by being arranged on the shackle of hanging on sheet 12.
S6, hanging tensile force f sheet 12 applied straight up, detecting by pulling force sensor the pulling force that blade 11 is subject to.
In this process, can carry out organizing test, that is, the pulling force varied in size several groups is respectively applied on blade 11 successively more, and detects the stressed of blade 11 respectively.
S7, suspension clipping device to be disassembled from blade 11.
Specifically, can first unclamp fastening bolt 7, fixture 8 is taken out, just suspension clipping device can be taken off from blade 11.
Suspension clipping device for blade slow test provided by the present invention and method, be hinged on framework by sheet 12 will be hung, guarantee is drawn in testing and hung is freely, thus avoid to hang sheet 12 apply pulling force time, hang the mutual interference between sheet 12 and quadrilateral frame, even if when upper and lower frames 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 when the effect of under tension, ensure that being applied to the pulling force hung on sheet 12 can act on blade 11 completely, thus significantly improve the accuracy of the pulling force measured by pulling force sensor.In addition, when testing other orientation of blade 11 (as 180 or 270 degree), not needing a whole set of for replacing suspension clipping device, by means of only changing the installation site of hanging sheet 12, can realize, thus significantly simplify the flow process of blade slow test.
Although show and describe some embodiments of the present invention, it should be appreciated by those skilled in the art that when not departing from by the principle of the present invention of claim and its scope of equivalents thereof and spirit, can modify to these embodiments.

Claims (9)

1. the suspension clipping device for blade slow test, it is characterized in that, comprise quadrilateral frame, at least two are hung sheet, pulling force sensor, supplementary plate, first web member and the second web member, blades installation to be tested is in described quadrilateral frame, the framework relative in the face of blade head and the tail two of two ends of described quadrilateral frame is loading frame, the first mounting hole of dead in line is offered respectively at the identical At The Height of two loading frames, when carrying out the slow test of horizontal level to blade, eachly hang sheet is articulated with described quadrilateral frame vertically outside by described first web member matched with described first mounting hole, when carrying out the slow test of vertical position to blade, the both sides of a loading frame above being in of two loading frames are fixedly connected with described supplementary plate respectively, described supplementary plate stretches out vertically relative to described quadrilateral frame, and offer the second mounting hole in the outside being positioned at described quadrilateral frame of described supplementary plate, hang sheet is articulated with described quadrilateral frame vertically outside by described second web member matched with described second mounting hole.
2. suspension clipping device according to claim 1, is characterized in that, described first web member comprise the first connecting screw rod and match with described first connecting screw rod multiple first hang sheet nut;
Wherein, described first connecting screw rod is inserted in the first mounting hole, and each sheet that hangs is enclosed within described first connecting screw rod respectively, and is arranged at the outside of loading frame vertically; Described multiple first hangs sheet nut is at least positioned at the corresponding both sides of hanging sheet, described in preventing, hang the axially-movable of sheet along the first connecting screw rod.
3. suspension clipping device according to claim 2, is characterized in that, is fixedly connected with the nut cooperatively interacted with described first connecting screw rod inside described loading frame.
4. suspension clipping device according to claim 1, is characterized in that, described second web member comprise the second connecting screw rod and match with described second connecting screw rod multiple second hang sheet nut;
Wherein, described second connecting screw rod passes the supplementary plate of the both sides of the loading frame being positioned at top in two loading frames, the described sheet that hangs is enclosed within the outside described second connecting screw rod being also arranged at vertically described loading frame, described multiple second hangs sheet nut at least lays respectively at the respective both sides of hanging sheet, described in preventing, hang the axially-movable of sheet along the second connecting screw rod.
5. suspension clipping device according to claim 1, is characterized in that, described quadrilateral frame is formed by connecting by four H profile steel.
6. suspension clipping device according to claim 1, is characterized in that, between the adjacent frame of described quadrilateral frame, be provided with stiffening rib.
7. suspension clipping device according to claim 1, is characterized in that, described suspension clipping device also comprises the fixture be arranged between described blade and described quadrilateral frame, with fixing described blade.
8. suspension clipping device according to claim 1, is characterized in that, described quadrilateral frame is rectangular.
9. a method for the blade slow test adopting the suspension clipping device as described in claim 1 to 8 any one to carry out, is characterized in that, comprise the following steps:
A, by blade horizontal positioned, and quadrilateral frame is made to be fixed on the periphery of described blade;
B, two are hung sheet and be hinged on vertically respectively on the relative framework of two of quadrilateral frame, then pulling force sensor is connected to hangs sheet;
C, hanging pulling force sheet applied straight up, detecting by pulling force sensor the pulling force that described blade is subject to;
D, sheet will be hung disassemble, and blade and described quadrilateral frame are vertically placed;
E, be hinged on the framework being in top of described two relative frameworks vertically by hanging sheet and pulling force sensor;
F, hanging pulling force sheet applied straight up, detecting by pulling force sensor the pulling force that described blade is subject to;
G, described suspension clipping device is disassembled from described blade, wherein, step B comprises: hang the sheet outside being hinged on described loading frame vertical respectively by described first web member by two, again pulling force sensor is connected to and hangs sheet, step e comprises: the both sides of a loading frame above being in of two loading frames are fixedly connected with supplementary plate respectively, to sheet be hung be articulated with vertically the outside being in a loading frame of top of two loading frames by the second web member of matching with the second mounting hole on supplementary plate, again pulling force sensor is connected to and hangs sheet.
CN201310010310.7A 2013-01-11 2013-01-11 For suspension clipping device and the method for blade slow test Active CN103091093B (en)

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CN107150946B (en) * 2017-06-29 2018-04-10 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
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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