CN202676552U - Blade root connecting bolt and blade root connecting static strength testing device of wind wheel blade - Google Patents
Blade root connecting bolt and blade root connecting static strength testing device of wind wheel blade Download PDFInfo
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- CN202676552U CN202676552U CN 201220320503 CN201220320503U CN202676552U CN 202676552 U CN202676552 U CN 202676552U CN 201220320503 CN201220320503 CN 201220320503 CN 201220320503 U CN201220320503 U CN 201220320503U CN 202676552 U CN202676552 U CN 202676552U
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 230000003068 static effect Effects 0.000 title claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims description 60
- 238000009434 installation Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000282376 Panthera tigris Species 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
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Abstract
The utility model discloses a blade root connecting bolt and blade root connecting static strength testing device of a wind wheel blade, which comprises a loading system, a converting device, a bottom plate and a rotating-preventing baffle plate, wherein the loading system is used for applying a load to the testing device, the converting device acts in a direction of transmitting and converting the load, the bottom plate is used for bearing an acting force and fixing a sample, and the rotating-preventing baffle plate is used for preventing the sample from reversing in a testing process. The utility model solves the problem of the blade root connecting bolt and blade root connecting static strength testing device of the wind wheel blade, and is suitable for a test for testing the blade root connecting bolt and blade root connecting static strength of the wine wheel blade.
Description
Technical field
The utility model relates to a kind of connection static strength proving installation, is specifically related to a kind of test unit of the testing experiment for wind wheel blade blade root fastenings bolt and blade root fastenings static strength.
Background technology
In the computing method of present blade root bolt strength of joint, commonly used is finite element method.Finite element model has carried out very large simplification, and the accuracy of finite element method need to be tested and verify, VDI2230 checks by Machine Design standard and DS mark, and this method is designed with good directive significance to blade root is bolted.The classic method of finishing test has two kinds, and a kind of is the anchor clamps of design and blade root shape and bolt shape coupling, and then fiberglass part and bearing bolt by the clamping sample apply up-down stretch load until finish test.Another kind be with sample coupon fiberglass partial fixing on the testing machine platform, by bearing bolt is applied tensile load until finish test.But the sample coupon of testing is the leaf root part that cuts down from full-scale blade root, and has installed coupling bolt according to designing requirement.Sample coupon one end is the cylindrical bolt coupling part, and the other end is the arc-shaped leaf root portion, and general conventional tiger’s jaw anchor clamps at all can't clamping, needs special anchor clamps; Also have because the length of exemplar itself is longer, the universal testing machine stroke is limited, and the stroke space that reserves is difficult to carry out the design of anchor clamps.And because the design strength of joint of bolt reaches 400KN, actual breakdown strength is up to 500KN, and the huge holding force that test produces is very big to the destruction that sample coupon produces, and needs design end more protection device to be protected.
Above-mentioned two kinds of methods all have larger difficulty at jig Design and sample coupon aspect fixing, original testing equipment can not satisfy testing requirements, and large-scale extension test cost of equipment is high, the test cost is large, therefore, be badly in need of a kind of testing experiment equipment of design, satisfy the testing requirements that the blade root bolt connects static strength.
The utility model content
The purpose of this utility model is to provide a kind of and need not clamping and can directly compressive load be converted to tensile load, and the proving installation of wind wheel blade blade root fastenings bolt simple in structure, cheap for manufacturing cost, that economic serviceability is high and blade root fastenings static strength.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to be: a kind of wind wheel blade blade root fastenings bolt and blade root fastenings static strength proving installation comprise loading system, conversion equipment, base plate and anti-rotation baffle plate; Described loading system is used for providing load to test unit; One end of described conversion equipment and the loading end of loading system join, and the other end of conversion equipment is connected with sample coupon, and the effect of conversion equipment is the direction of transmission and conversion load; Described base plate links to each other with sample coupon by coupling bolt, and base plate bears acting force and fixing sample coupon by coupling bolt; Described anti-rotation baffle plate is arranged on the sample coupon both sides, is installed on the base plate, and the effect of anti-rotation baffle plate is to prevent that sample coupon from twisting in process of the test.
Further improve as the utility model, described loading system is universal testing machine.
Further improve as the utility model, described conversion equipment comprises dull and stereotyped under conversion equipment upper flat plate, the conversion equipment and several conversion equipment connecting links, flat board is connected by the conversion equipment connecting link under described conversion equipment upper flat plate, the conversion equipment, offer on the flat board for the through hole by bearing bolt under the described conversion equipment, described bearing bolt is connected bearing load by nut with flat board under the conversion equipment.
Further improve as the utility model, flat board is provided with threaded hole under described conversion equipment upper flat plate, the conversion equipment, conversion equipment connecting link two ends are provided with connecting thread, and flat board is threaded connection with the conversion equipment connecting link and is connected under conversion equipment upper flat plate, the conversion equipment.
As further improvement of the utility model, described base plate is to have the flat board that bears large load-carrying ability, and base plate is provided with mounting hole, is used for installing fixedly sample coupon.
As further improvement of the utility model, described base plate also is provided with mounting groove, is used for installing fixedly anti-rotation baffle plate.
As further improvement of the utility model, the shape of described anti-rotation baffle plate and wind wheel blade blade root profile coupling.
The utility model has solved the test unit problem of wind wheel blade blade root fastenings bolt and blade root fastenings static strength testing experiment, uniform and stable with load applying to sample coupon, be applicable to the wind wheel blade blade root fastenings bolt of larger load-bearing capacity and the testing experiment of blade root fastenings static strength.
Description of drawings
Fig. 1 is the structural representation of wind wheel blade blade root fastenings bolt and blade root fastenings static strength experimental apparatus for testing;
Fig. 2 is the vertical view schematic diagram of wind wheel blade blade root fastenings bolt and blade root fastenings static strength experimental apparatus for testing
Fig. 3 is the schematic diagram of conversion equipment;
Fig. 4 is the A--A diagrammatic cross-section of Fig. 1.
Among the figure: 1, base plate, 2, the anti-rotation baffle plate, 3, sample coupon, 4, conversion equipment, 5, universal testing machine, 6, bearing bolt, 7, coupling bolt, 8, nut, 9, mounting groove, 10, threaded hole, 11, connecting thread, 12, the conversion equipment connecting link, 13, conversion equipment upper flat plate, 14, through hole, 15, dull and stereotyped under the conversion equipment, 16, mounting hole.
Embodiment
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
As shown in drawings, a kind of wind wheel blade blade root fastenings bolt and blade root fastenings static strength proving installation comprise universal testing machine 5, conversion equipment 4, base plate 1 and anti-rotation baffle plate 2; Universal testing machine 5 is used for providing test load to test unit; The effect of conversion equipment 4 is to transmit and the direction of conversion load, and the compressive load that universal testing machine 5 loading ends are applied to conversion equipment upper flat plate 13 is converted to the tensile load to the blade root sample coupon that bearing bolt 6 is installed; Conversion equipment 4 comprises dull and stereotyped 15 and two conversion equipment connecting links 12 under conversion equipment upper flat plate 13, the conversion equipment, dull and stereotyped 15 are provided with threaded hole 10 under conversion equipment upper flat plate 13, the conversion equipment, conversion equipment connecting link 12 two ends are provided with connecting thread 11, dull and stereotyped 15 are threaded connection with conversion equipment connecting link 12 and are connected under conversion equipment upper flat plate 13, the conversion equipment, offer on the flat board 15 for the through hole 14 by bearing bolt 6 under the conversion equipment, sample coupon 3 is connected with flat board 15 under the conversion equipment with nut 8 by bearing bolt 6, bears tensile load; Base plate 1 is used for bearing acting force for having the metal plate that bears large load-carrying ability, and base plate is provided with mounting hole 16, uses coupling bolt 7 and nut 8 that sample coupon 3 is installed and is fixed on the base plate 1, and the reacting force of sample coupon 3 is passed on the base plate 1; Also be provided with anti-rotation baffle plate mounting groove 9 on the base plate 1, be used for installing fixedly anti-rotation baffle plate 2; Acting as of anti-rotation baffle plate 2 prevents that sample coupon 3 from twisting in process of the test, the shape of anti-rotation baffle plate 2 and wind wheel blade blade root profile coupling, and anti-rotation baffle plate 2 and wind wheel blade blade root are close on the rear mounting groove 9 that is fixed on base plate 1 with bolt with type.
During test, sample coupon 3 and the frock integral body of finishing installation are placed on the platform of universal testing machine 5, adjust universal testing machine 5 and load the end, the loading end is contacted with conversion equipment upper flat plate 13, adjust the verticality of sample coupon 3 and apply slightly and preload, in the process of the test by universal testing machine 5 controlled loading programs and gather load displacement information.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a wind wheel blade blade root fastenings bolt and blade root fastenings static strength proving installation is characterized in that: comprise at least loading system, conversion equipment, base plate and anti-rotation baffle plate; One end of described conversion equipment and the loading end of loading system join, and the other end of conversion equipment is connected with sample coupon; Described base plate links to each other with sample coupon by coupling bolt; Described anti-rotation baffle plate is arranged on the sample coupon both sides, and the anti-rotation baffle plate is installed on the base plate.
2. a kind of wind wheel blade blade root fastenings bolt as claimed in claim 1 and blade root fastenings static strength proving installation, it is characterized in that: described loading system is universal testing machine.
3. a kind of wind wheel blade blade root fastenings bolt as claimed in claim 1 and blade root fastenings static strength proving installation, it is characterized in that: described conversion equipment comprises dull and stereotyped under conversion equipment upper flat plate, the conversion equipment and several conversion equipment connecting links, flat board is connected by the conversion equipment connecting link under described conversion equipment upper flat plate, the conversion equipment, offer on the flat board for the through hole by bearing bolt under the described conversion equipment, described bearing bolt is connected with flat board under the conversion equipment by nut.
4. a kind of wind wheel blade blade root fastenings bolt as claimed in claim 2 and blade root fastenings static strength proving installation, it is characterized in that: flat board is provided with threaded hole under described conversion equipment upper flat plate, the conversion equipment, conversion equipment connecting link two ends are provided with connecting thread, and flat board is threaded connection with the conversion equipment connecting link and is connected under conversion equipment upper flat plate, the conversion equipment.
5. a kind of wind wheel blade blade root fastenings bolt as claimed in claim 1 and blade root fastenings static strength proving installation, it is characterized in that: described base plate is to have the flat board that bears large load-carrying ability, and base plate is provided with mounting hole.
6. a kind of wind wheel blade blade root fastenings bolt as claimed in claim 4 and blade root fastenings static strength proving installation, it is characterized in that: described base plate also is provided with the mounting groove of anti-rotation baffle plate.
7. a kind of wind wheel blade blade root fastenings bolt as claimed in claim 1 and blade root fastenings static strength proving installation is characterized in that: the shape of described anti-rotation baffle plate and wind wheel blade blade root profile coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320503 CN202676552U (en) | 2012-07-04 | 2012-07-04 | Blade root connecting bolt and blade root connecting static strength testing device of wind wheel blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320503 CN202676552U (en) | 2012-07-04 | 2012-07-04 | Blade root connecting bolt and blade root connecting static strength testing device of wind wheel blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202676552U true CN202676552U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320503 Expired - Fee Related CN202676552U (en) | 2012-07-04 | 2012-07-04 | Blade root connecting bolt and blade root connecting static strength testing device of wind wheel blade |
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| CN (1) | CN202676552U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089770A (en) * | 2014-07-28 | 2014-10-08 | 中国船舶重工集团公司第七0四研究所 | Asymmetric double-arm centrifugal loading device |
| CN108776102A (en) * | 2018-05-17 | 2018-11-09 | 余姚市振大塑胶有限公司 | Air-conditioning the wind wheel automatic pulling force check meter of step department and its method of inspection |
| CN112710551A (en) * | 2020-11-20 | 2021-04-27 | 惠阳航空螺旋桨有限责任公司 | Composite material blade static strength test device |
| CN113125255A (en) * | 2021-03-22 | 2021-07-16 | 株洲时代新材料科技股份有限公司 | Device and method for testing tensile fatigue of embedded part of blade root of wind power blade |
-
2012
- 2012-07-04 CN CN 201220320503 patent/CN202676552U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089770A (en) * | 2014-07-28 | 2014-10-08 | 中国船舶重工集团公司第七0四研究所 | Asymmetric double-arm centrifugal loading device |
| CN108776102A (en) * | 2018-05-17 | 2018-11-09 | 余姚市振大塑胶有限公司 | Air-conditioning the wind wheel automatic pulling force check meter of step department and its method of inspection |
| CN112710551A (en) * | 2020-11-20 | 2021-04-27 | 惠阳航空螺旋桨有限责任公司 | Composite material blade static strength test device |
| CN113125255A (en) * | 2021-03-22 | 2021-07-16 | 株洲时代新材料科技股份有限公司 | Device and method for testing tensile fatigue of embedded part of blade root of wind power blade |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130116 Termination date: 20210704 |