CN207456961U - A kind of wind electricity blade static force loading device - Google Patents
A kind of wind electricity blade static force loading device Download PDFInfo
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- CN207456961U CN207456961U CN201721354714.8U CN201721354714U CN207456961U CN 207456961 U CN207456961 U CN 207456961U CN 201721354714 U CN201721354714 U CN 201721354714U CN 207456961 U CN207456961 U CN 207456961U
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- head tree
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- bearing
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Abstract
The utility model provides a kind of wind electricity blade static force loading device, it is with high reliability and security, it is simple in structure, convenient for debugging, installation and use, the needs of different wind electricity blade experimental duties can be met, it includes reaction frame, reaction frame is adjustable composite structure, it includes main support, the upper end of main support is equipped with fixed pulley, it is equipped on main support below fixed pulley and fixed pulley is matched follows pulley gear, threaded hole pair is provided on main support, the threaded hole of threaded hole pair is arranged symmetrically, follow pulley gear that can be installed on the different position of main support by threaded hole, it follows and cable engaging lug is installed on pulley gear, the lower end of main support is equipped with ball hinged supporting device and pedestal.
Description
Technical field
The utility model is related to the loading technique fields of wind electricity blade, are specially a kind of wind electricity blade static force loading device.
Background technology
The structural strength of wind electricity blade and static analysis and intensity, the rigidity and should under wind electricity blade dead weight
Power, deformation distribution situation are closely related.In the prior art wind electricity blade test usually piled up using simple several subsystems and
Into, but the overall performance after subsystem is piled up together is poor, debugging, installation use all inconveniences, it is impossible to meet different wind
The needs of electric blade experimental duties, and safety coefficient is relatively low, therefore establish a set of with high reliability, the wind-powered electricity generation leaf of security
Piece static loading system becomes the research of wind power system and the key technical problem that engineering construction is urgently to be resolved hurrily.
Utility model content
Poor for the test device overall performance of wind electricity blade in the prior art, debugging is installed, using not
It is convenient, it is impossible to meet the needs of different wind electricity blade experimental duties, the problems such as safety coefficient is relatively low, the utility model provides one
Kind wind electricity blade static force loading device, it is simple in structure with high reliability and security, it, can convenient for debugging, installing and use
Meet the needs of different wind electricity blade experimental duties.
A kind of wind electricity blade static force loading device, including reaction frame, which is characterized in that the reaction frame is adjustable group
Structure is closed, including main support, the upper end of the main support is equipped with fixed pulley, described below the fixed pulley
It is equipped on main support and the fixed pulley is matched follows pulley gear, threaded hole pair is provided on the main support,
The threaded hole of the threaded hole pair is arranged symmetrically, described to follow pulley gear that be installed on the main support by the threaded hole
Different position, described follow be equipped with cable engaging lug on pulley gear, the lower end of the main support is equipped with ball hinged supporting
Device and pedestal.
It is further characterized by,
The main support includes head tree, and through hole is provided on the head tree, and diagonal brace axis passes through logical on the head tree
Hole is installed on the head tree, and one end of bearing diagonal R and bearing diagonal L are respectively arranged in the two of the diagonal brace axis at an angle
End, the bearing diagonal R, bearing diagonal L are located at the front end of the head tree and form right angular triangular solids branch with the head tree
Frame, the head tree have angle, the diagonal brace axis with horizontal plane respectively perpendicular to horizontal plane, the bearing diagonal R, bearing diagonal L
Both ends of the surface be separately installed with shaft-cup plate, the other end of the bearing diagonal R and bearing diagonal L is separately installed with ball hinged supporting device；
Between the bearing diagonal R and bearing diagonal L, between the bearing diagonal R and the head tree, the bearing diagonal L and the head tree
Between be movably installed with pull rod respectively, the both ends of the pull rod are respectively arranged in by shaft in bearing block, bearing block peace
Loaded on the bearing diagonal R, bearing diagonal L, the column lower section；
The bottom of the head tree is equipped with pedestal, and ear mount, the bottom are equipped between the pedestal and the head tree
Seat includes fixed seat, is provided with groove in the fixed seat, and turntable is equipped in the groove in the fixed seat；
The ball hinged supporting device includes multi-directional ball, and the upper end of the multi-directional ball is installed on rebound lower end middle part
In groove, the through hole that the lower end of the multi-directional ball is sequentially passed through on ball seat and spherical cap plate is installed on ball seat chassis；
The fixed pulley includes two fixed pulleys, and described two fixed pulleys are respectively arranged in fixed pulley stent, described
Fixed pulley stent is symmetrically arranged in the both sides of the head tree above the diagonal brace axis, the end installation of the fixed pulley stent
There is cylinder roller bearing, the fixed pulley is installed on by fixed pulley axis in the cylinder roller bearing respectively, the fixed pulley
Washer is separately installed on the fixed pulley axis between the cylinder roller bearing,
It is described that pulley gear is followed to include following pulley, it is described to follow pulley between the diagonal brace axis and the pull rod
The head tree on, described to follow pulley by the way that pulley spindle is followed to be installed in cylinder roller bearing, the cylindrical roller axis
It holds to be installed on and follow on pulley bracket, described follow followed between pulley and the cylinder roller bearing is divided on pulley spindle
Washer A is not installed, it is described that pulley bracket is followed to be installed on shaft seat by hexagon socket cap head screw, standard spring washer,
The shaft seat is installed on spindle housing by servo-actuated shaft, and the spindle housing is installed on the head tree, described to follow pulley branch
Cable engaging lug is installed, the cable engaging lug is located at the lower section for following pulley, leads in the cable engaging lug on frame
Crossing nut installation, there are two axis；
Foot support is installed, the foot support is positioned at the rear end of the head tree below the head tree.
The utility model is applied in the static loading experiment of wind electricity blade, loading form is horizontal addload.Reaction frame
It, can be by the position of pulley gear and ball hinged supporting be followed to fill convenient for debugging, installing and use for adjustable composite structure
It puts and is adjusted, while maximum test space demand is met, can be freely combined, adjust test space, meet different wind
Electric leaf assay task needs.The present apparatus passes through the steel wire rope and pulley assembly on hawser outlet device：Fixed pulley with
Coordinate each load(ing) point that loading force is transferred to wind electricity blade with pulley gear, so that entire loading procedure is steadily reliable,
And pass through FEM mechanics analysis and force analysis is carried out to wind electricity blade, deflection of the control reaction frame under maximum load makes
Reaction frame will not be influenced be subject to redundant force, so that the security performance of the device greatly improves.
Description of the drawings
Fig. 1 is the front view of the utility model device；
Fig. 2 is the left view of the utility model device；
Fig. 3 is the top view of the utility model device；
Fig. 4 is the sectional view of the front view of the ball hinged supporting device of the utility model device.
Specific embodiment
As shown in Figures 1 to 4, a kind of wind electricity blade static force loading device, including reaction frame, reaction frame is adjustable group
Structure is closed, including main support 1, main support 1 includes head tree 2, and through hole is provided on head tree 2, and diagonal brace axis 3 passes through head tree 2
On through hole be installed on head tree 2, diagonal brace axis 3 is installed on head tree by hexagon socket cap head screw and standard spring washer
On 2, one end of bearing diagonal R4 and bearing diagonal L5 are respectively arranged in the both ends of diagonal brace axis 3, bearing diagonal R4, bearing diagonal at an angle
L5 is located at the front end of head tree 2 and forms right angular triangular solids stent with head tree 2, and head tree 2 is tiltedly propped up perpendicular to horizontal plane
Support R4, bearing diagonal L5 has angle with horizontal plane respectively, and the both ends of the surface of diagonal brace axis 3 are separately installed with shaft-cup plate 6, and shaft-cup plate 6 is logical
It crosses hexagon socket cap head screw and standard spring washer is installed on the outer end face of diagonal brace axis 3.Bearing diagonal R4 is another with bearing diagonal L5's
One end is separately installed with ball hinged supporting device 7, and ball hinged supporting device 7 includes multi-directional ball 8, and the upper end of multi-directional ball 8 is installed on transition
In the groove of 9 lower end middle part of plate, rebound 9 is installed on multi-directional ball 8 by hexagon socket cap head screw, standard spring washer
Upper end, the through hole that the lower end of multi-directional ball is sequentially passed through on spherical cap plate 10 and ball seat 11 is installed on ball seat chassis 12, spherical cap plate
10 are installed on by hexagon socket cap head screw, standard spring washer on ball seat 11, ball seat 11 by hexagon socket cap head screw,
Standard spring washer is installed on ball seat chassis 12；
Divide between bearing diagonal R4 and bearing diagonal L5, between bearing diagonal R4 and head tree 2, between bearing diagonal L5 and head tree 2
Pull rod 13 is not movably installed with, and the both ends of pull rod 13 are respectively arranged in by shaft 14 in bearing block 15, and bearing block 1 is distinguished
The lower section of bearing diagonal R4, bearing diagonal L5, head tree 2 is installed on by hexagon socket cap head screw and standard spring washer 5；
The upper end of main support 1 is equipped with fixed pulley 16, and fixed pulley 16 includes two fixed pulleys 17, and two fixed sliding
Wheel 17 is respectively arranged in fixed pulley stent 18, and fixed pulley stent 18 is symmetrically arranged in the both sides of the head tree 2 of 3 top of diagonal brace axis,
The end of fixed pulley stent 18 is separately installed with cylinder roller bearing 19, and cylinder roller bearing 19 passes through interior hexagonal cylindrical head respectively
Screw, standard spring washer are installed on fixed pulley stent 18；Fixed pulley 17 is installed on cylinder by fixed pulley axis 20 respectively and rolls
In sub- bearing 19, washer 21 is separately installed on the fixed pulley axis 20 between fixed pulley 17 and cylinder roller bearing 19；
It is equipped on the main support 1 of the lower section of fixed pulley 16 and fixed pulley 16 is matched follows pulley gear
22, the threaded hole that is arranged symmetrically is provided on main support 1 to 23, master of the threaded hole to 23 perforates between diagonal brace axis 3 and pull rod 13
On column 2, follow pulley gear 22 that can be installed on the different position of main support 1 by threaded hole 23, pulley gear 22 is followed to wrap
Include and follow pulley 24, threaded hole to 23 perforates on head tree 2 between diagonal brace axis 3 and pull rod 13, follow pulley 24 by with
It is installed on pulley spindle 25 in cylinder roller bearing 26, cylinder roller bearing 26, which is installed on, to be followed on pulley bracket 27, follows cunning
Following between wheel 24 and cylinder roller bearing 26 is equipped with washer A on pulley spindle 25, cylinder roller bearing 26 is respectively by interior
Hexagonal cylindrical head screw, standard spring washer, which are installed on, to be followed on pulley bracket 27, and pulley bracket 27 is followed to justify by interior hexagonal
Chapiter screw, standard spring washer are installed on shaft seat 28, and shaft seat 28 is installed on spindle housing 30, shaft by servo-actuated shaft 29
Frame 30 is installed on head tree 2, follows and cable engaging lug 31 is equipped on pulley bracket 27, and cable engaging lug 31, which is located at, follows pulley
24 lower section, cable engaging lug 31 is interior, and by nut installation, there are two axis；
The lower end of main support 1 is equipped with ball hinged supporting device 7 and pedestal 32, and pedestal 32 is located at the bottom of head tree 2, pedestal
Ear mount 33 is installed, ear mount 33 is pacified by hexagon socket cap head screw, standard spring washer, cross axle between 32 and head tree 2
Loaded on pedestal 32；Pedestal 32 includes fixed seat 34, is provided with groove in fixed seat 34, turntable 35, turntable 35 are equipped in groove
It is installed on by hexagon socket cap head screw, standard spring washer, plain washer in the groove in fixed seat 34, under head tree 2
Side is equipped with foot support 36, and foot support 36 is located at the rear end of head tree 2.
Its concrete operating principle is as described below：The utility model is applied in the static loading experiment of wind electricity blade, wind
The length of electric blade is less than 70 meters, and the ability detected with extension to 100 meters of length or more wind electricity blade；In selection cable
Both the tractive force of rope had been considered on engaging lug 5 during loading traction rope used, it is common again in view of weight and bending radius
The weight and bending radius of steel wire traction rope are all larger, so present case uses the Di Nima cordage of Hua Lian company, using 12
The Di Nima cordage of stock 36mm diameters, ultimate strength reach 1000KN, its strength is high compared with similary diameter steel cord
In steel wire rope 10%-15%, other all fibres are even more incomparable, and Di Nima cordage weight is lighter, can float on the water not
To sink, weight is only 1/8th of similary diameter steel cord, and 1/3rd of terylene.
The power in loading level direction uses electro-hydraulic servo control system on wind electricity blade, passes through hydraulic servo motor
Speed reducer is driven to complete the loading of power.Loading system uses electro-hydraulic servo control, and speed reducer is driven by hydraulic servo motor
To complete the loading of power.Preload experiment is first carried out, test specimen is tensed with 20%~30% maneuvering load, eliminates gap, unload immediately
It carries；Then multistage loadings are to maneuvering load.Malformation should not interfere wind electricity blade to work normally, and after unloading without significantly residual
Remaining deformation.After maneuvering load is loaded into again, continue to be monitored strain, amount of deflection measurement, multistage loadings to design load,
It is required that kept for a period of time（Such as it is no less than 3 seconds）, structure do not destroy.Finally select most serious in various design conditions it is a kind of into
Row failure test determines structure residual strength factor.Reaction frame plays the work for providing loading counter-force during the entire process of experiment
With, and in loading procedure, counter-force can follow the side youngster in cable direction and adjust automatically direction, be cable always perpendicular to
The loading surface of wind electricity blade, reaction frame will not be influenced be subject to redundant force.
The particular technique index that present apparatus needs meet includes：The maximum carrying of 1 horizontal direction of main support is full not less than 50T
Maximum carry of 1 horizontal direction of main support is not less than 800 kN under the conditions of load, the centre deflection of main support 1 under full load conditions
Less than 1 mm.The flexible effective traction of loading is not less than 50T, and fracture strength is not less than 100T, and wind electricity blade loads fixture meets
Blade profile requirement, will have blade safeguard measure, and loading stress is more than 50T.In actual experiment, using solidworks softwares
In finite element analysis carry out carrying out wind electricity blade force analysis, first according to design drawing establish threedimensional model, and select phase
The material answered, then selects stress point, and tessellated mesh simultaneously carries out force analysis, it can be deduced that the maximum stress of loading frame is only
Meet the requirement in technical indicator for 73MPa, maximum distortion 0.958mm.
Claims (7)
1. a kind of wind electricity blade static force loading device, including reaction frame, which is characterized in that the reaction frame is adjustable composite
Structure, including main support, the upper end of the main support is equipped with fixed pulley, the master below the fixed pulley
It is equipped on stent and the fixed pulley is matched follows pulley gear, threaded hole pair, institute is provided on the main support
The threaded hole for stating threaded hole pair is arranged symmetrically, described to follow pulley gear that be installed on the main support by the threaded hole
Different position, described follow are equipped with cable engaging lug on pulley gear, the lower end of the main support is equipped with ball hinged supporting dress
It puts and pedestal.
2. a kind of wind electricity blade static force loading device according to claim 1, it is characterised in that：The main support includes master
Column is provided with through hole on the head tree, and diagonal brace axis is installed on through the through hole on the head tree on the head tree, is tiltedly propped up
One end of support R and bearing diagonal L is respectively arranged in the both ends of the diagonal brace axis, the bearing diagonal R, bearing diagonal L at an angle
Right angular triangular solids stent is formed in the front end of the head tree and with the head tree, the head tree is perpendicular to level
Face, the bearing diagonal R, bearing diagonal L have angle with horizontal plane respectively, and the both ends of the surface of the diagonal brace axis are separately installed with shaft-cup
Plate, the other end of the bearing diagonal R and bearing diagonal L are separately installed with ball hinged supporting device；The bearing diagonal R and bearing diagonal L it
Between, between the bearing diagonal R and the head tree, between the bearing diagonal L and the head tree be movably installed with pull rod respectively,
The both ends of the pull rod are respectively arranged in by shaft in bearing block, the bearing block be installed on the bearing diagonal R, bearing diagonal L,
The lower section of the column.
3. a kind of wind electricity blade static force loading device according to claim 2, it is characterised in that：The bottom of the head tree
Pedestal is installed, ear mount is installed between the pedestal and the head tree, the pedestal includes fixed seat, in the fixed seat
It is provided with groove, turntable is installed in the groove in the fixed seat.
4. a kind of wind electricity blade static force loading device according to claim 1 or 2, it is characterised in that：The ball hinged supporting
Device includes multi-directional ball, and the upper end of the multi-directional ball is installed in the groove of rebound lower end middle part, the multi-directional ball
The through hole that lower end is sequentially passed through on ball seat and spherical cap plate is installed on ball seat chassis.
5. a kind of wind electricity blade static force loading device according to claim 2, it is characterised in that：The fixed pulley bag
Two fixed pulleys are included, described two fixed pulleys are respectively arranged in fixed pulley stent, and the fixed pulley stent is symmetrically arranged in described
The both sides of the head tree above diagonal brace axis, the end of the fixed pulley stent is equipped with cylinder roller bearing, described to determine cunning
Wheel is installed on by fixed pulley axis in the cylinder roller bearing respectively.
6. a kind of wind electricity blade static force loading device according to claim 2, it is characterised in that：It is described to follow pulley gear
It is described to follow on the head tree for following pulley between the diagonal brace axis and the pull rod including following pulley
By the way that pulley spindle is followed to be installed in cylinder roller bearing, the cylinder roller bearing is installed on to be followed on pulley bracket pulley,
Described follow for following between pulley and the cylinder roller bearing is separately installed with washer A on pulley spindle, described to follow
Pulley bracket is installed on shaft seat by hexagon socket cap head screw, standard spring washer, and the shaft seat is by being servo-actuated shaft
Spindle housing is installed on, the spindle housing is installed on the head tree, and described follow is equipped with cable engaging lug on pulley bracket, institute
It states cable engaging lug and is located at the lower section for following pulley, the cable engaging lug is interior, and there are two axis by nut installation.
7. a kind of wind electricity blade static force loading device according to claim 2, it is characterised in that：The lower section of the head tree
Foot support is installed, the foot support is positioned at the rear end of the head tree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721354714.8U CN207456961U (en) | 2017-10-20 | 2017-10-20 | A kind of wind electricity blade static force loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721354714.8U CN207456961U (en) | 2017-10-20 | 2017-10-20 | A kind of wind electricity blade static force loading device |
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| Publication Number | Publication Date |
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| CN207456961U true CN207456961U (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721354714.8U Active CN207456961U (en) | 2017-10-20 | 2017-10-20 | A kind of wind electricity blade static force loading device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111398040A (en) * | 2020-03-20 | 2020-07-10 | 上海交通大学 | Oblique reverse thrust cascade static test device for aircraft engine |
-
2017
- 2017-10-20 CN CN201721354714.8U patent/CN207456961U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111398040A (en) * | 2020-03-20 | 2020-07-10 | 上海交通大学 | Oblique reverse thrust cascade static test device for aircraft engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 214101 No. 4, Chunlei Road, Xishan District, Wuxi City, Jiangsu Province Patentee after: WUXI HAIHANG ELECTRO-HYDRAULIC SERVO SYSTEM OF LIMITED BY SHARE LTD. Address before: 214027 No.11, area a, South Station Economic Development Park, no.1899 Jianghai East Road, Xinwu District, Wuxi City, Jiangsu Province Patentee before: WUXI HAIHANG ELECTRO-HYDRAULIC SERVO SYSTEM OF LIMITED BY SHARE LTD. |
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| CP02 | Change in the address of a patent holder |