CN213060097U

CN213060097U - Stable supporting device for fan blade maintenance platform

Info

Publication number: CN213060097U
Application number: CN202021311604.5U
Authority: CN
Inventors: 刘作广; 谭建鑫; 黎燕航; 赵志磊; 赵红露; 顾婷; 马涛; 谢丹
Original assignee: Hebei Suntien New Energy Technology Co Ltd
Current assignee: Hebei Suntien New Energy Technology Co Ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-04-27
Anticipated expiration: 2030-07-07

Abstract

A stable supporting device for a fan blade maintenance platform comprises an adjusting frame and a holding rope, wherein a sliding rail is mounted on one side of the adjusting frame, positioning pulleys are connected to the upper surface and the lower surface of the sliding rail, a rack is fixedly mounted on the upper surface of the sliding rail and meshed with a gear, the gear is rotatably connected to the side surface of a gear locking device through a rotating bearing, a guide wheel is connected to the other side of the adjusting frame, and a rocking handle is fixedly mounted at the end part of the rotating bearing; locking devices are arranged at two ends of the holding rope, and the holding rope surrounds the outer surface of the tower barrel and is in contact with the outer surface of the tower barrel. The utility model overcomes the defects of the prior art, the gear is controlled to rotate through the rocking handle to drive the slide rail to do horizontal movement, so as to adjust the positions of the adjusting frame at the end part of the slide rail and the guide wheel, thereby realizing the stable supporting and limiting function of the whole maintenance platform in the horizontal direction; simultaneously, the rope is encircled on the outer surface of the tower barrel, so that the stability of the maintenance platform on the horizontal plane can be further improved.

Description

Stable supporting device for fan blade maintenance platform

Technical Field

The utility model relates to a aerogenerator's blade maintenance technical field, concretely relates to stable strutting arrangement for fan blade maintenance platform.

Background

At present, with the rapid development of national economy, wind energy as a highly competitive renewable energy source occupies a large part of the proportion in the field of new energy power generation. Most wind driven generators are in a severe environment, and blades of the wind driven generators are easily damaged and eroded by sand, dust, salt mist and the like during operation, so that maintenance and replacement of the blades are very important work of a wind power plant. At present, maintenance hanging baskets/platforms are most commonly adopted, so that workers can work in the maintenance platforms to guarantee the operation safety and improve the operation quality.

However, the existing maintenance platform is usually only hoisted by a combined mode of a winch, a fixed pulley and a steel wire rope, and when wind blows and the like, shaking and instability are easily caused, so that the maintenance operation of workers is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a stable supporting device for a fan blade maintenance platform, which overcomes the defects of the prior art, has reasonable design, controls the gear rotation through the rocking handle, thereby driving the sliding rail to do horizontal movement, adjusting the positions of the adjusting frame at the end part of the sliding rail and the guide wheels, and leading the guide wheels to be attached on the surface of a tower barrel to move, thereby playing the role of stable supporting and limiting on the whole maintenance platform in the horizontal direction through two groups of guide wheels; simultaneously through will embracing the surface of rope ring at a tower section of thick bamboo to fasten through locking device, thereby can further improve the stability of maintenance platform on the horizontal plane.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a stable supporting device for a fan blade maintenance platform comprises an adjusting frame and a holding rope, wherein two ends of one side surface of the adjusting frame are vertically and fixedly provided with sliding rails, the upper surface and the lower surface of each sliding rail are movably connected with positioning pulleys, the positioning pulleys are connected onto a fixing frame through rotating shafts, the fixing frame is fixedly arranged on two side surfaces of the maintenance platform, racks are fixedly arranged on the upper surfaces of the sliding rails, the racks are meshed with gears, the gears are rotatably connected onto the side surfaces of a gear locking device through rotating bearings, the gear locking device is fixedly arranged on the fixing frame, the other side surface of the adjusting frame is connected with a guide wheel through a support, the guide wheel is contacted with a tower barrel, and the end parts of the rotating bearings are fixedly provided with rocking; embrace the rope both ends and all be provided with locking device, locking device fixed mounting is in the both sides of maintenance platform, embrace the rope and encircle the surface at a tower section of thick bamboo and contact with a tower section of thick bamboo surface.

Preferably, gear locking device includes the fixed block, rolling bearing swing joint is in the middle of the fixed block, gear fixed mounting is at the rolling bearing surface, gear inboard side surface still fixed mounting has spacing dish, spacing dish surface and joint piece looks joint, joint piece fixed mounting is at the fixed axle surface, the fixed axle passes the fixed block and through the spacing fixed of fixing bolt.

Preferably, the limiting disc is of an obtuse triangle structure along the circumference, and one side surface of the clamping block is in contact with the surface corresponding to the longest edge of the obtuse triangle.

Preferably, locking device includes U type frame, there is the winding axle through bearing swing joint in the U type frame, one side fixed mounting that one end of winding axle passed U type frame has the crank, the opposite side fixed mounting that the other end of winding axle passed U type frame has the ratchet, through the one end of pivot swing joint pawl on the opposite side surface of U type frame, the other end of pawl contacts with the circumference surface of ratchet, the one end of fixed connection spring in the middle of the pawl, the other end fixed connection of spring is in one side that U type frame surface is close to the ratchet.

Preferably, a plurality of sleeves are uniformly sleeved on the surface of the rope holding device and are in rolling connection with the outer surface of the tower barrel.

The utility model provides a stable support arrangement for fan blade maintenance platform. The method has the following beneficial effects: the gear is controlled to rotate through the rocking handle, so that the sliding rail is driven to horizontally move, the positions of the adjusting frame at the end part of the sliding rail and the guide wheels are adjusted, the guide wheels are attached to the surface of the tower barrel to move, and the whole maintenance platform is stably supported and limited in the horizontal direction through the two groups of guide wheels; the gear can be locked and fixed through the gear locking device so as to prevent the gear from rotating in the opposite direction; simultaneously through will embracing the surface of rope ring at a tower section of thick bamboo to fasten through locking device, thereby can further improve the stability of maintenance platform on the horizontal plane.

Drawings

In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the prior art will be briefly described below.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of an adjusting bracket and a connecting device thereof according to the present invention;

FIG. 3 is a schematic structural view of the middle gear locking device of the present invention;

fig. 4 is a schematic structural view of the locking device of the present invention;

the reference numbers in the figures illustrate:

1. an adjusting bracket; 2. carrying out rope holding; 3. a slide rail; 4. positioning the pulley; 5. a fixed mount; 6. a rack; 7. a gear; 8. a gear locking device; 9. a support; 10. a guide wheel; 11. a rotating bearing; 12. a rocking handle; 13. a locking device; 14. a U-shaped frame; 15. a winding shaft; 16. a crank; 17. a ratchet wheel; 18. a pawl; 19. a spring; 20. maintaining the platform; 21. a sleeve; 81. a fixed block; 83. a limiting disc; 84. a clamping block; 85. a fixed shaft; 86. and (5) fixing the bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention will be combined below to clearly and completely describe the technical solutions of the present invention.

In the first embodiment, as shown in fig. 1 to 4, a stable supporting device for a maintenance platform of a fan blade includes an adjusting frame 1 and a holding rope 2, two ends of a surface of one side of the adjusting frame 1 are both vertically and fixedly installed with slide rails 3, upper and lower surfaces of the slide rails 3 are both movably connected with positioning pulleys 4, the positioning pulleys 4 are connected to a fixed frame 5 through a rotating shaft, the fixed frame 5 is fixedly installed at two side surfaces of the maintenance platform 20, a rack 6 is fixedly installed on the upper surface of the slide rails 3, the rack 6 is engaged with a gear 7, the gear 7 is rotatably connected to a side surface of a gear locking device 8 through a rotating bearing 11, the gear locking device 8 is fixedly installed on the fixed frame 5, the surface of the other side of the adjusting frame 1 is connected with a guide wheel 10 through a bracket 9, the guide wheel 10 is in contact with a tower, a rocking handle, the rocking handle 12 passes through the door and then is connected with the end part of the rotating bearing 11; embrace 2 both ends of rope and all be provided with locking device 13, locking device 13 fixed mounting is in the both sides of maintenance platform 20, embraces rope 2 and encircles the surface at the tower section of thick bamboo and contact with the tower section of thick bamboo surface.

The working principle is as follows: in the using process, the rocking handle 12 drives the rotating bearing 11 to rotate together, so as to drive the gear 7 to rotate, and then the gear 7 is meshed with the rack 6 to drive the sliding rail 3 to move horizontally, so as to adjust the positions of the adjusting frame 1 and the guide wheels 10 at the end parts of the sliding rail 3, so that the guide wheels 10 are attached to the surface of the tower barrel to move, and therefore, the stable supporting and limiting effect is achieved on the whole maintenance platform 20 in the horizontal direction through the two groups of guide wheels 10; after the gear 7 is adjusted to rotate to a certain position, the gear 7 can be locked and fixed through a gear locking device 8 so as to prevent the gear from rotating in the opposite direction; the up-down direction of the slide rail 3 is limited through the positioning pulley 4, so that the slide rail 3 can move left and right stably; meanwhile, in the embodiment, the holding rope 2 is wound on the outer surface of the tower and is fastened through the locking device 13, so that the stability of the maintenance platform 20 on the horizontal plane can be further improved.

In the second embodiment, as shown in fig. 3, based on a further improvement of the first embodiment, the gear locking device 8 includes a fixing block 81, the rotating bearing 11 is movably connected in the middle of the fixing block 81, the gear 7 is fixedly mounted on an outer surface of the rotating bearing 11, a limiting disc 83 is further fixedly mounted on an inner side surface of the gear 7, an outer surface of the limiting disc 83 is clamped with the clamping block 84, the clamping block 84 is fixedly mounted on an outer surface of the fixing shaft 85, and the fixing shaft 85 penetrates through the fixing block 81 and is fixed in a limiting manner through a fixing bolt 86. When the gear 7 is locked and fastened, the limiting disc 83 can be limited to rotate in the opposite direction through the clamping effect of the clamping blocks 84 and the circumferential surface of the limiting disc 83, the gear 7 can be limited to rotate in the opposite direction, when the adjusting frame 1 needs to be adjusted to return to the original position, the fixing bolt 86 can be rotated to enable the fixing shaft 85 to move towards the fixing block 81, the clamping blocks 84 at the end part of the fixing shaft 85 are separated from the limiting disc 83, the gear 7 can rotate in the opposite direction, and then the adjusting frame 1 can be adjusted to return to the original position through the meshing relationship between the gear 7 and the rack 6.

In the third embodiment, based on a further improvement of the second embodiment, the limiting disc 83 is of an obtuse triangle structure along the circumference, and one side surface of the clamping block 84 is in contact with a surface corresponding to the longest side of the obtuse triangle. So as to ensure that the clamping block 84 only limits the limiting disc 83 to rotate in the opposite direction when limiting the limiting disc 83 to rotate.

In a fourth embodiment, as shown in fig. 4, based on a further improvement of the first embodiment, the locking device 13 includes a U-shaped frame 14, a winding shaft 15 is movably connected to the inside of the U-shaped frame 14 through a bearing, a crank 16 is fixedly installed at one end of the winding shaft 15 through one side of the U-shaped frame 14, a ratchet 17 is fixedly installed at the other end of the winding shaft 15 through the other side of the U-shaped frame 14, one end of a pawl 18 is movably connected to the outer surface of the other side of the U-shaped frame 14 through a rotating shaft, the other end of the pawl 18 contacts with the circumferential surface of the ratchet 17, one end of a spring 19 is fixedly connected to the middle of the pawl 18, and the other end of the spring 19 is fixedly connected to one.

When the holding rope 2 is locked, the two ends of the holding rope 2 are respectively fixed on the winding shafts 15 in the two U-shaped frames 14, then the crank 16 is rotated, the holding rope 2 is wound on the surface of the winding shafts 15, the crank 16 is stopped to rotate after the holding rope 2 is completely tensioned, and in the process of rotating the crank 16, the end part of the pawl 18 is clamped with the ratchet wheel 17 through the elastic action of the spring 19, so that the winding shafts 15 can be prevented from reversely rotating, the holding rope 2 can be stably held on the surface of a tower drum, and the stability of the maintenance platform 20 on the horizontal plane can be improved; when the holding rope 2 needs to be released, the end part of the pawl 18 is separated from the ratchet wheel 17, so that the holding rope 2 can be released conveniently and quickly.

In the fifth embodiment, based on further improvement of the first embodiment, a plurality of sleeves 21 are uniformly sleeved on the surface of the holding rope 2, and the sleeves 21 are in rolling connection with the outer surface of the tower. Through the rolling action of the sleeve 21 on the surface of the locking rope 2, when the maintenance platform 20 moves up and down, the sleeve 21 can roll on the surface of the tower barrel, so that the phenomena of magic rope, blocking and the like when the locking rope 2 moves up and down can be prevented.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a stabilize strutting arrangement for fan blade maintenance platform which characterized in that: comprises an adjusting frame (1) and a holding rope (2), wherein slide rails (3) are fixedly installed at two ends of one side surface of the adjusting frame (1) perpendicularly, positioning pulleys (4) are movably connected to the upper surface and the lower surface of each slide rail (3), the positioning pulleys (4) are connected to a fixing frame (5) through rotating shafts, the fixing frame (5) is fixedly installed on two side surfaces of a maintenance platform (20), racks (6) are fixedly installed on the upper surfaces of the slide rails (3), the racks (6) are meshed with gears (7), the gears (7) are rotatably connected to the side surfaces of gear locking devices (8) through rotating bearings (11), the gear locking devices (8) are fixedly installed on the fixing frames (5), the other side surface of the adjusting frame (1) is connected with guide wheels (10) through a support (9), and the guide wheels (10) are contacted with a tower barrel, a rocking handle (12) is fixedly arranged at the end part of the rotating bearing (11);

embrace rope (2) both ends and all be provided with locking device (13), locking device (13) fixed mounting is in the both sides of maintenance platform (20), embrace rope (2) and encircle the surface at the tower section of thick bamboo and contact with the tower section of thick bamboo surface.

2. A stabilizing support device for a wind turbine blade service platform according to claim 1, wherein: gear locking device (8) are including fixed block (81), rolling bearing (11) swing joint is in the middle of fixed block (81), gear (7) fixed mounting is at rolling bearing (11) surface, gear (7) inboard surface still fixed mounting have spacing dish (83), spacing dish (83) surface and joint piece (84) looks joint, joint piece (84) fixed mounting is at fixed axle (85) surface, fixed axle (85) pass fixed block (81) and through fixing bolt (86) spacing fixed.

3. A stabilizing support device for a wind turbine blade service platform according to claim 2, wherein: spacing dish (83) are obtuse angle triangle structure along the circumference, the surface that a side surface and the longest limit of obtuse angle triangle of joint piece (84) correspond contacts.

4. A stabilizing support device for a wind turbine blade service platform according to claim 1, wherein: locking device (13) include U type frame (14), there are winding shaft (15) through bearing swing joint in U type frame (14), one side fixed mounting that U type frame (14) was passed to the one end of winding shaft (15) has crank (16), the opposite side fixed mounting that U type frame (14) was passed to the other end of winding shaft (15) has ratchet (17), the one end through pivot swing joint pawl (18) on the opposite side surface of U type frame (14), the other end of pawl (18) contacts with the circumference surface of ratchet (17), the one end of fixed connection spring (19) in the middle of pawl (18), the other end fixed connection of spring (19) is in one side that U type frame (14) surface is close to ratchet (17).

5. A stabilizing support device for a wind turbine blade service platform according to claim 1, wherein: a plurality of sleeves (21) are uniformly sleeved on the surface of the holding rope (2), and the sleeves (21) are in rolling connection with the outer surface of the tower barrel.