CN213059847U

CN213059847U - Blade hoisting adjusting device for wind driven generator

Info

Publication number: CN213059847U
Application number: CN202022011891.4U
Authority: CN
Inventors: 刘作广; 黎燕航; 傅文光; 刘世江; 赵志磊; 李�荣
Original assignee: Hebei Suntien New Energy Technology Co Ltd
Current assignee: Hebei Suntien New Energy Technology Co Ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-04-27
Anticipated expiration: 2030-09-15

Abstract

A blade hoisting adjusting device for a wind driven generator comprises two blade clamps and a tower top bracket, wherein the two blade clamps are respectively and fixedly arranged on two sides of a gravity center point of a fan blade, and hoisting rings are fixedly arranged on the surfaces of the two sides of each blade clamp; the tower top support fixed mounting is in the cabin of fan, the equal fixed mounting in tower top support upper surface both sides has the movable guide, equal sliding connection has the sliding block in every movable guide, the equal fixed mounting in tip of every movable guide has flexible motor, the flexible end of every flexible motor respectively with a sliding block fixed connection, equal fixed mounting has the lifting machine on the sliding block, lifting device's one end is connected to the drive end of lifting machine, lifting device's the other end difference fixed connection is on the rings of blade anchor clamps both sides. The utility model overcomes prior art's is not enough, and whole process does not need large-scale lifting device, has saved the blade and has changed the expense greatly.

Description

Blade hoisting adjusting device for wind driven generator

Technical Field

The utility model relates to a blade hoist and mount technical field of fan, concretely relates to blade hoist and mount adjusting device for aerogenerator.

Background

With the increasing development of offshore wind power, the market demand for replacement and maintenance of large parts of offshore wind turbines is also sharply increased. As offshore wind power is far from land, "large part replacement difficulty" has become a common problem facing offshore wind power worldwide.

The large offshore part is replaced by a hoisting ship with supporting legs. According to research, in China, the cost of renting a landing leg hoisting boat is about 300 million RMB every time a large part of an offshore wind turbine is replaced. At present, the domestic landing leg ship has insufficient preservation quantity and high use cost, and becomes the bottleneck of reducing cost in the replacement operation of offshore wind turbine components.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a blade hoist and mount adjusting device for aerogenerator, the not enough of prior art has been overcome, be connected to the blade anchor clamps through the lifting machine on the tower top support on, can realize the adjustment to the blade angle, it is corresponding with top of the tower mounted position to guarantee the bolt of the blade root department of blade, the flexible motor of simultaneous control drives the slider and slides in the movable guide rail, make the lifting machine remove to the cabin direction, thereby control fan blade removes top of the tower mounted position, can accomplish the installation fastening work of blade root. The utility model discloses also be applicable to land wind-powered electricity generation blade hoist and mount.

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

a blade hoisting adjusting device for a wind driven generator comprises two blade clamps and a tower top bracket, wherein the two blade clamps are respectively and fixedly arranged on two sides of a gravity center point of a fan blade, and the surfaces of the two sides of each blade clamp are respectively and fixedly provided with a hanging ring; the tower top support is fixedly installed in a cabin of the fan, moving guide rails are fixedly installed on two sides of the upper surface of the tower top support, sliding blocks are connected in the moving guide rails in a sliding mode, telescopic motors are fixedly installed at the end portions of the moving guide rails, the telescopic ends of the telescopic motors are fixedly connected with one sliding block respectively, lifting machines are fixedly installed on the sliding blocks, one ends of the lifting machines are connected with the driving end of each lifting machine, and the other ends of the lifting machines are fixedly connected to lifting rings on two sides of the blade clamp respectively.

Preferably, the lifting devices are steel wire ropes, the lifting machines are arranged in 4 numbers and are uniformly distributed on the movable guide rails on two sides of the upper surface of the tower top support, each lifting machine is connected with one end of one steel wire rope, the other ends of the steel wire ropes are respectively connected to the hanging rings on two sides of the blade fixture, and every two steel wire ropes opposite in position are correspondingly connected to two sides of the same blade fixture.

Preferably, the lifting device comprises a section of steel wire rope, a second-stage lifting beam and a second-stage steel wire rope, a second-stage sliding rail is fixedly mounted on the upper surface of the second-stage lifting beam, the second-stage sliding rail is respectively connected with two groups of hoists and a gravity center adjusting mechanism in a sliding mode, the two groups of hoists are respectively arranged on two sides of the gravity center adjusting mechanism, one end of the section of steel wire rope is connected to a driving end of the hoister, the other end of the section of steel wire rope is fixedly connected to the gravity center adjusting mechanism, the driving end of the hoists is respectively connected to one end of the second-stage steel wire rope, and the other.

The utility model provides a blade hoist and mount adjusting device for aerogenerator. The method has the following beneficial effects: the angle of the blade can be adjusted by connecting the lifting machine on the tower top bracket to the blade clamp, so that a bolt at the blade root of the blade can be ensured to correspond to the mounting position of the tower top, and meanwhile, the telescopic motor is controlled to drive the sliding block to slide in the movable guide rail, so that the lifting machine moves towards the direction of the engine room, the fan blade is controlled to move to the mounting position of the tower top, and the mounting and fastening work of the blade root can be completed; the whole process does not need large-scale hoisting equipment, and the cost for replacing the blades is greatly saved.

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 view of the structure of the middle tower top bracket of the present invention;

FIG. 3 is a schematic view of the mounting structure of the blade holder of the present invention;

fig. 4 is a schematic structural view of a third embodiment of the present invention;

the reference numbers in the figures illustrate:

1. a blade clamp; 2. a tower top support; 3. a hoisting ring; 4. a moving guide rail; 5. a slider; 6. a telescopic motor; 7. a hoist; 8. a pulling device; 81. a section of wire rope; 82. a secondary hanging beam; 83. a second section of steel wire rope; 84. a secondary slide rail; 85. a winch; 86. a center of gravity adjusting mechanism.

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 3, a blade hoisting adjusting device for a wind driven generator comprises two blade clamps 1 and a tower top bracket 2, wherein the two blade clamps 1 are respectively and fixedly installed on two sides of a gravity center point of a fan blade, and hoisting rings 3 are fixedly installed on the surfaces of two sides of each blade clamp 1; 2 fixed mounting of top of the tower support 2 is in the cabin of fan, the equal fixed mounting in 2 upper surface both sides of top of the tower support has movable guide 4, equal sliding connection has sliding block 5 in every movable guide 4, the equal fixed mounting of tip of every movable guide 4 has flexible motor 6, the flexible end of every flexible motor 6 respectively with a sliding block 5 fixed connection, equal fixed mounting has lifting machine 7 on sliding block 5, lifting machine 8's one end is connected to lifting machine 7's drive end, lifting device 8's the other end difference fixed connection is on the rings 3 of 1 both sides of blade anchor clamps.

The working principle is as follows: when in use, the two blade clamps 1 are fixed on the fan blade, the positions of the two blade clamps 1 are distributed on two sides of the gravity center point of the fan blade, the end parts of the lifting device 8 are respectively connected to the hanging rings 3 on two sides of the two blade clamps 1, the lifting device 8 is pulled by the lifter 7, then the fan blade is lifted to a certain height, the lifter 7 is controlled to release the lifting device 8 far away from the blade root or tighten the lifting device 8 close to the blade root so as to ensure that the blade can be adjusted to a proper installation angle, the lifter 7 is controlled to synchronously pull the lifting device 8 upwards, the telescopic motor 6 is controlled to drive the sliding block 5 to slide in the movable guide rail 4, the lifter 7 is moved towards the engine room direction, thereby the fan blade is controlled to move to the installation position on the top of the tower, and the installation and fastening work of the blade, then the blade clamp 1 is loosened and sent to the ground through the lifter 7.

In the second embodiment, based on further improvement of the first embodiment, the lifting device 8 is a steel wire rope, the lifting devices 7 are provided with 4 steel wire ropes, the lifting devices are uniformly distributed on the moving guide rails 4 on two sides of the upper surface of the tower top support 2, each lifting device 7 is connected with one end of one steel wire rope, the other end of each steel wire rope is connected to the lifting rings 3 on two sides of the blade clamp 1, and every two steel wire ropes opposite in position are correspondingly connected to two sides of the same blade clamp 1. By arranging 4 lifting machines, and connecting every two opposite lifting machines to two sides of the same blade clamp 1 through steel wire ropes, the stability of blade lifting and the freedom degree of blade posture adjustment can be improved; in this embodiment, the four hoisting machines 7 are respectively and correspondingly connected to the driving ends of the four telescopic motors 6, and the four telescopic motors 6 and the four hoisting machines 7 are controlled by one control system, so that the four hoisting machines 7 can be hoisted or moved synchronously or individually.

In a third embodiment, as shown in fig. 4, based on a further improvement of the first embodiment, the lifting device 8 includes a first section of steel wire rope 81, a second section of lifting beam 82 and a second section of steel wire rope 83, a second section of sliding rail 84 is fixedly installed on the upper surface of the second section of lifting beam 82, the second section of sliding rail 84 is respectively connected with two groups of winches 85 and a center of gravity adjusting mechanism 86 in a sliding manner, the two groups of winches 85 are respectively disposed on two sides of the center of gravity adjusting mechanism 86, one end of the first section of steel wire rope 81 is connected to a driving end of the lifting machine 7, the other end of the first section of steel wire rope 81 is fixedly connected to the center of gravity adjusting mechanism 86, a driving end of the winches 85 is respectively.

In this embodiment, a hoisting machine 7 is installed on the tower top support 2, so that the cantilever length of the tower top support 2 can be greatly shortened, during operation, the ends of two sections of steel wire ropes are respectively and correspondingly connected to the hoisting rings 3 on the two sides of the blade clamp 1, the hoisting machine 7 drives the whole lifting device 8 and the fan blade to move upwards for a certain height, then the two groups of hoisting machines 85 are controlled to respectively release or retract, so as to adjust the installation angle of the blade, the telescopic motor 6 is controlled to drive the hoisting machine 7 to move towards the cabin, so that the fan blade is controlled to move to the tower top installation position, and the installation and fastening work of the blade root can be completed; in the present embodiment, the center of gravity adjusting mechanism 86 (which is not described in detail herein since it is prior art) is installed on the secondary suspension beam 82, and can slide on the secondary suspension beam 82, so as to find the center of gravity of the blade and keep stability.

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 blade hoist and mount adjusting device for aerogenerator which characterized in that: the device comprises two blade clamps (1) and a tower top bracket (2), wherein the two blade clamps (1) are respectively and fixedly arranged on two sides of a gravity center point of a fan blade, and the surfaces of the two sides of each blade clamp (1) are respectively and fixedly provided with a hanging ring (3);

top of the tower support (2) fixed mounting is in the cabin of fan, the equal fixed mounting in top of the tower support (2) upper surface both sides has movable guide (4), every equal sliding connection has sliding block (5), every in movable guide (4) the equal fixed mounting in tip of movable guide (4) has flexible motor (6), every the flexible end of flexible motor (6) respectively with a sliding block (5) fixed connection, equal fixed mounting has lifting machine (7) on sliding block (5), the one end of lifting device (8) is connected to the drive end of lifting machine (7), the other end difference fixed connection of lifting device (8) is on rings (3) of blade anchor clamps (1) both sides.

2. The blade lifting adjusting device for the wind driven generator as claimed in claim 1, wherein: the lifting device (8) is a steel wire rope, the lifting machines (7) are arranged in 4 numbers and are evenly distributed on the movable guide rails (4) on two sides of the upper surface of the tower top support (2), each lifting machine (7) is connected with one end of one steel wire rope, the other ends of the steel wire ropes are connected to the lifting rings (3) on two sides of the blade clamp (1) respectively, and every two steel wire ropes opposite in position are correspondingly connected to two sides of the same blade clamp (1).

3. The blade lifting adjusting device for the wind driven generator as claimed in claim 1, wherein: the lifting device (8) comprises one section of steel wire rope (81), a second-stage lifting beam (82) and two sections of steel wire ropes (83), a second-stage sliding rail (84) is fixedly mounted on the upper surface of the second-stage lifting beam (82), the second-stage sliding rail (84) is respectively connected with two groups of winches (85) and a gravity center adjusting mechanism (86) in a sliding mode, the two groups of winches (85) are respectively arranged on two sides of the gravity center adjusting mechanism (86), one end of the section of steel wire rope (81) is connected to a driving end of a lifting machine (7), the other end of the section of steel wire rope (81) is fixedly connected to the gravity center adjusting mechanism (86), the driving end of the winch (85) is respectively connected with one end of the two sections of steel wire ropes (83), and the other end of the two sections of steel wire ropes (83).