CN110228749A - A kind of method of slipping tail fixture and slipping tail hoisting blade - Google Patents

Abstract

The present invention provides a kind of methods of slipping tail fixture and slipping tail hoisting blade in suspender technical field, including crossbeam, two clamp arms stretched out downward are rotatably connected on crossbeam, the grip block for clamping blade is connected on clamp arm, two grip blocks are oppositely arranged, it is equipped with the suspension hook for lifting above crossbeam, is connected with the drawstring extended downwardly on suspension hook, the both ends that drawstring extends downwardly are connected on two clamp arms；Product of the present invention is highly-safe, it can be achieved that the slipping tail of blade of wind-driven generator lifts work.

Description

A tail-slip fixture and a method for hoisting a blade with a tail-slip

technical field

The invention belongs to the technical field of slings, and in particular relates to a tail-slip clamp and a method for hoisting blades.

Background technique

As a power source to replace manpower and animal power, wind turbines are a green and clean production capacity that plays an important role in the development of productivity. The blades of wind turbines are an important part of wind turbines. When wind turbines are hoisting blades, Generally, the hub is placed on the ground first, and then the blades are installed on the hub one by one. After installation, it is generally called an impeller. That is to say, the overall structure formed by "hub + three blades" is called impeller. When hoisting, the hub is generally placed on the ground first, and then the blades are installed on the hub one by one. When hoisting the impeller, two cranes are generally required to cooperate with each other. One main crane is hoisted near the hub, and the other is an auxiliary crane. The blade is lifted by a crane, which is called a slip tail, to prevent the other end from rubbing against the vehicle or the ground when only one end is hoisted, causing damage to the equipment.

In the Chinese patent database, a Chinese patent with the patent name "Universal Wind Power Generator Blade Sliding Tail Fixture" is disclosed, the application publication date is 20180605, and the application publication number is CN 207448308 U. The device includes a main boom, a main frame, and a transport support Legs, front beams, clamping guards, batteries, control cabinets and flexible supports, clamping guards are set in the main frame, clamping guards are connected to motors, motors are connected to batteries and control cabinets, clamping guards are driven by motors Reciprocate on the main frame to clamp or loosen the blade or install the blade with the sawtooth trailing edge. In this design, the blade needs to be clamped by the positive clamping force of the two clamping guards. The required clamping The force is very large. During the operation of the device, when the blade at the other end away from the tail jig is lifted up, that is, when the blade changes from horizontal to vertical, the weight of the blade is relatively large, and the jig needs to be To withstand a large shaking impact, the clamping guard needs to provide a greater clamping force to prevent the blade from falling off. If the clamping guard is slightly loose, the blade will shake a lot and fall easily, which is likely to cause a safety accident , low security.

Contents of the invention

Aiming at the defects in the prior art, the purpose of the present invention is to solve the deficiencies in the prior art, solve the technical problem of low safety in the prior art, and provide a tail-slip clamp and a method for hoisting the blades, The device clamps the blade reliably and has high safety.

The object of the present invention is achieved in the following way: a tail-slip clamp includes a crossbeam, two clamping arms protruding downwards are rotatably connected to the crossbeam, and the clamping arms are connected with a The two clamping plates are set opposite to each other. A hook for lifting is provided above the crossbeam. A pull rope extending downward is connected to the hook. on a clamping arm.

Before the present invention works, the wind blades and the wind hub are assembled, placed on the ground, the main crane is used to hang the wind hub, the auxiliary crane is used to hang the tail clamp, the connecting piece is connected to the lower connecting ear, the claw and the clamping arm Vertically, the auxiliary crane hangs the sliding tail fixture and falls from the front edge of the blade, so that the blade is between the two clamping plates, the two clamping arms rotate downward, and the rotation of the two clamping arms drives the two clamping plates Relatively move to make the clamping plate clamp the blade, control the main crane and the auxiliary crane to rise to a sufficient height at the same time, the blade is hoisted, at this time, the blade is in a horizontal state, the auxiliary crane hangs the sliding tail clamp slowly downward, the main crane Rising slowly, the blade gradually turns into a vertical state, realizing the tail-slip hoisting of the blade, and finally completing the hoisting and assembly of the blade. When the blade becomes vertical in the present invention, the tail-sliding fixture bears a large shaking impact due to the change of the center of gravity position , through the joint setting of the clamping arm and the clamping plate, the clamping plate tightly clamps the blade to realize the firm clamping of the blade; it can be applied to the lifting of the tail of the blade.

In order to realize the synchronous extension of the two clamping arms, two rotating shafts are rotatably connected to the beam, one rotating shaft is connected with synchronous gear 1, and the other rotating shaft is connected with synchronous gear 2 and synchronous gear 1. It meshes with the second synchronous gear, the number of teeth of the first synchronous gear and the second synchronous gear are the same, and the two clamping arms are respectively connected to the two rotating shafts; in this design, through the meshing transmission of the first synchronous gear and the second synchronous gear, It can realize stable and high-efficiency transmission, and make the clamping arms arranged oppositely rotate synchronously, so that the clamping plate clamps the blade more firmly.

In order to realize the rotation of the two clamping arms, so that the clamping plate clamps or releases the blade, the two ends of the beam are hinged with a linear drive, and the linear drive is provided with a downward inclined and can do reciprocating movement. Push-pull rod, one end of the push-pull rod protruding downward is hinged on the clamping arm; in this design, the joint arrangement of linear drive, synchronous gear 1 and synchronous gear 2 enables the two clamping plates to clamp the blade at the same time Holding force, the clamping is more firm.

In order to realize that the clamping plate can swing left and right, the clamping arm is fixedly connected with a support beam, and the front and rear ends of the support beam are respectively hinged with a connecting beam capable of swinging left and right.

In order to realize that the clamping plate can swing up and down, the connecting beam is connected with a support shaft that can swing up and down. head, the ball head mount can swing relative to the ball head.

In order to facilitate the adjustment of the center of gravity of the sling when the tail is hoisted, at least one traction device is connected to the side of the beam, and the traction device includes a winch. On the hook, there is an angle adjustment rope inside the winch, and the end of the angle adjustment rope protruding downward is connected with a drag hook, and the drag hook is connected with a connecting rope extending downward, and the lower end of the connecting rope is hinged on the beam .

As a further improvement of the present invention, the beam is provided with a lifting connection assembly, and the lifting connection assembly includes a fixed part fixedly connected to the beam, and the lower part of the fixed part towards the rear is hinged with a connecting part for connecting a stay rope. There is a chute on the upper part, and the upper part of the rearward end of the fixed part is hinged with a moving part, and the backward protruding end of the moving part can slide along the chute.

As a further improvement of the present invention, two spacer pads for limiting the height of the blades are connected to the beam, and the two spacer pads are arranged symmetrically with respect to the center of the beam in the length direction.

In order to facilitate transportation, the lower side of the clamping arm is rotatably connected with claws that can rotate forward and backward. The clamping surfaces of the two claws are oppositely arranged, and the upper connecting ears are arranged on the claws from top to bottom. The upper connecting ear and the lower connecting ear, the clamping arm is hinged with a connecting piece extending downward. When the claw is vertical, the end of the connecting piece protruding downward is connected with the upper connecting ear. When the holding claw fits When on the ground, the end of the connecting piece protruding downwards is connected with the lower connecting ear.

In order to be used in a method for tail-swinging fixture to carry out the tail-swinging lifting blade, the following steps are included:

(1) Assemble the wind blade and the wind hub first, place them on the ground, hang the wind hub with the main crane, hang the tail slide fixture with the auxiliary crane, connect the connecting piece to the lower connecting ear, and hold the claw perpendicular to the clamping arm. The auxiliary crane hangs the sliding tail clamp and falls from the front edge of the blade, so that the blade is between the two clamping plates;

(2) The linear drive acts, the first synchronous gear and the second synchronous gear are meshed for transmission, and the clamping plate moves relatively. When the clamping plate contacts the surface of the blade, the clamping plate can swing in the left and right directions and the front and rear directions respectively, and the blade is clamped Clamp the board, connect the connecting piece to the upper connecting ear, and hold the claw vertically;

(3) After the main crane and the auxiliary crane are controlled to rise to a sufficient height at the same time, the auxiliary crane hangs the tail-sliding fixture slowly downward, the main crane rises slowly, and at the same time the traction device moves, the length of the angle adjustment rope changes, and the position of the lifting adjustment component changes. Adjust the position of the center of gravity of the sliding tail clamp until the blade is gradually tilted and finally in a vertical state to realize the sliding tail hoisting of the blade. After the tail sliding hoisting is completed, the traction device moves, and the length of the angle adjustment rope is adjusted again to bring the lifting connection assembly back to the initial state. Location;

(4) The linear drive acts in reverse, the first synchronous gear and the second synchronous gear are meshed for transmission, the clamping plate moves opposite to each other, the clamping plate releases the blade, and the auxiliary crane drives the sliding tail clamp to separate from the blade.

Description of drawings

Fig. 1 is the front view of the present invention.

FIG. 2 is a partial enlarged view of A in FIG. 1 .

Fig. 3 is a three-dimensional structure diagram 1 of the present invention.

FIG. 4 is a partially enlarged view of B in FIG. 3 .

FIG. 5 is a partially enlarged view at point C in FIG. 3 .

Fig. 6 is the second perspective structure diagram of the present invention.

FIG. 7 is a partially enlarged view at point D in FIG. 6 .

Fig. 8 is a bottom view of the present invention.

Fig. 9 is a view from the E-E direction of Fig. 8 .

Among them, 1 beam, 2 clamping arm, 3 clamping plate, 301 ball head mount, 4 hook, 5 pull rope, 6 rotating shaft, 7 synchronous gear 1, 8 synchronous gear 2, 9 support beam, 10 connecting beam , 11 support shaft, 1101 ball head, 12 traction device, 1201 winch, 1202 angle adjustment rope, 1203 pull hook, 13 lifting rope, 14 connecting rope, 15 lifting connection assembly, 1501 fixed part, 1502 connecting part, 1503 chute, 1504 Moving part, 16 linear driver, 17 push-pull rod, 18 limit pad, 19 holding claw, 1901 upper connecting ear, 1902 lower connecting ear, 20 connecting piece, 21 electric control box, 22 hydraulic station.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

A tail-sliding fixture as shown in Figures 1 to 9 includes a beam 1, an electric control box 21 and a hydraulic station 22 are arranged on the beam 1, two rotating shafts 6 are rotatably connected to the beam 1, and one rotating shaft 6 Synchronous gear 1 7 is connected to the top, and synchronous gear 2 8 is connected to the other rotating shaft 6. Synchronous gear 1 7 and synchronous gear 2 8 are meshed. Synchronous gear 1 7 and synchronous gear 2 8 have the same number of teeth. The rotatable connection has two clamping arms 2 protruding downwards. The two clamping arms 2 are arranged oppositely. The two clamping arms 2 are connected to the two rotating shafts 6 respectively. Linear driver 16, the linear driver 16 is provided with a push-pull rod 17 that extends obliquely downwards and can move back and forth. The clamping plate 3 for clamping the blade, the two clamping plates 3 are arranged oppositely, and the beam 1 is also connected with two spacer pads 18 for limiting the height of the blade. The center is symmetrically arranged; the lower side of the clamping arm 2 is rotatably connected with a claw 19 that can rotate back and forth, and the clamping surfaces of the two claws 19 are arranged oppositely, and the upper connecting ears are arranged on the claw 19 from top to bottom 1901, the upper connecting ear 1901 and the lower connecting ear 1902, the clamping arm 2 is hinged with a connecting piece 20 extending downward, when the claw 19 is vertical, the end of the connecting piece 20 protruding downward is connected with the upper connecting ear 1901 , when the claw 19 fits on the ground, the end of the connector 20 protruding downward is connected with the lower connecting ear 1902; the clamping arm 2 is fixedly connected with the support beam 9, and the front and rear ends of the support beam 9 are hinged There is a connecting beam 10 that can swing left and right. The connecting beam 10 is connected with a support shaft 11 that can swing up and down. One end is a ball head 1101, and the mounting seat 301 of the ball head 1101 can swing relative to the ball head 1101; a hook 4 for lifting is provided on the top of the beam 1, and a stay rope 5 extending downward is connected to the hook 4, and the stay rope 5 is downward The protruding two ends are respectively connected to the two clamping arms 2; at least one traction device 12 is connected to the side of the beam 1, the traction device 12 includes a winch 1201, and the winch 1201 is connected with a lifting rope 13 extending upwards. 13 is connected on the suspension hook 4, and there is an angle adjustment rope 1202 in the winch 1201, and the end of the angle adjustment rope 1202 protruding downwards is connected with a drag hook 1203, and the drag hook 1203 is connected with a connecting rope 14 extending downward, and the connecting rope 14 The lower end of the lower end is hinged on the crossbeam 1, and the crossbeam 1 is provided with a lifting connection assembly 15. The lifting connection assembly 15 includes a fixed part 1501 fixedly connected on the crossbeam 1, and the lower part of the fixed part 1501 towards the rear is hinged for connecting the stay rope 5. The connecting part 1502 has a chute 1503 on the connecting part 1502 , and the upper part of the fixed part 1501 towards the rear is hinged with a moving part 1504 , and the backward protruding end of the moving part 1504 can slide along the chute 1503 .

In order to further carry out the method for the tail hanging blade of the present invention, comprise the following steps:

(1) First assemble the wind blades and the wind hub, place them on the ground, hang the wind hub with the main crane, hang the tail slide fixture with the auxiliary crane, connect the connecting piece 20 to the lower connecting ear 1902, hold the claw 19 and clamp it The arm 2 is vertical, and the auxiliary crane hangs the sliding tail clamp and falls from the front edge of the blade, so that the blade is between the two clamping plates 3;

(2) The linear driver 16 acts, the synchronous gear 1 7 and the synchronous gear 2 8 are meshed for transmission, and the clamping plate 3 moves relatively. When the clamping plate 3 is in contact with the surface of the blade, the clamping plate 3 can move in the left and right directions and the front and rear directions respectively. Swing, the blade is clamped by the clamping plate 3, the connecting piece 20 is connected to the upper connecting ear 1901, and the holding claw 19 is vertical;

(3) After the main crane and the auxiliary crane are controlled to rise to a sufficient height at the same time, the auxiliary crane hangs the tail-sliding fixture slowly downward, the main crane rises slowly, and at the same time the traction device 12 moves, the length of the angle adjustment rope 1202 changes, and the position of the lifting adjustment component is adjusted. Change, adjust the position of the center of gravity of the tail-slip fixture until the blade gradually tilts and finally becomes a vertical state to realize the tail-slip hoisting of the blade. After the tail-slip hoisting is completed, the traction device 12 moves, and the length of the angle adjustment rope 1202 is adjusted again to make the hoisting connection Component 15 gets back to the initial position;

(4) The linear driver 16 acts in reverse, the synchronous gear 1 7 and the synchronous gear 2 8 are meshed for transmission, the clamping plate 3 moves opposite to each other, the clamping plate 3 releases the blade, and the auxiliary crane drives the sliding tail clamp to separate from the blade.

Before the present invention works, the wind blade and the wind hub are assembled first, placed on the ground, the wind hub is hung by the main crane, the auxiliary crane hangs the sliding tail clamp, and the connecting piece 20 is connected to the lower connecting ear 1902, so that the holding claw 19 It is perpendicular to the clamping arm 2, which is convenient for transportation and can ensure that when the tail-slip spreader moves towards the blade, the claw 19 is prevented from touching the ground. Between the holding plates 3, when the upper end of the blade collides with the limit pad 18 and the blade is located between the two holding plates 3, the sliding tail clamp stops moving, the electric control box 21 controls the hydraulic station 22 to work, and the linear drive 16 operates. The push-pull rod 17 of the linear driver 16 pushes the clamping arm 2 to rotate downward, the rotation of the two clamping arms 2 drives the rotation shaft 6 to rotate, and the rotation of the rotation shaft 6 drives the rotation of the synchronous gear 1 7 and the synchronous gear 2 8 respectively, ensuring The synchronous movement of the two clamping arms 2, the rotation of the two clamping arms 2 also drives the relative movement of the two clamping plates. Above, the connecting beam 10 can swing left and right, the swing of the connecting beam 10 drives the clamping plate 3 to swing left and right, the swing of the connecting beam 10 makes the ball head 1101 of the support shaft 11 swing up and down in the ball head 1101 mounting seat 301, and the support shaft 11 The swing makes the clamping plate 3 swing up and down, and finally realizes that the clamping plate 3 can be adaptively adjusted according to the shape of the blade, so that the clamping plate 3 clamps the blade, connects the connecting piece 20 with the upper connecting ear 1901, and keeps the holding claw 19 In the vertical state, control the main crane and the auxiliary crane to rise to a sufficient height at the same time. At this time, the blade is in a horizontal state. The length of the angle adjustment rope 1202 between 12 and the drag hook 1203, the moving part 1504 slides along the chute 1503 on the connection part 1502 along with the change of the length of the angle adjustment rope 1202, and adjusts the center of gravity position of the sliding tail clamp until the blade gradually tilts Finally, it is in a vertical state to realize the tail-slip hoisting of the blade. After the tail-slip hoisting is completed, the traction device 12 moves, and the length of the angle adjustment rope 1202 is adjusted again, so that the hoisting connection assembly 15 returns to the initial position, and the linear drive 16 reverses. Synchronous gear 1 7 and synchronous gear 2 8 mesh transmission, clamping plate 3 moves opposite to each other, clamping plate 3 releases the blade, and the auxiliary crane drives the sliding tail fixture to break away from the blade. When the blade becomes vertical in the present invention, the sliding tail Due to the change of the position of the center of gravity, the fixture bears a large shaking impact. Through the joint setting of the clamping arm 2 and the clamping plate, the clamping plate tightly clamps the blade to realize the firm clamping of the blade; through the synchronization gear 7 and the synchronization The meshing transmission of gear 2 and 8 can realize stable and efficient transmission, so that the clamping arm 2 set opposite to it can rotate synchronously, so that the clamping plate 3 can clamp the blade more firmly; the setting of the traction device 12 can adjust the center of gravity position of the sliding tail clamp ; It can be applied to the lifting of the tail of the blade.

The patent of the present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the patent of the present invention, those skilled in the art can make some technical features based on the disclosed technical content without creative work. Replacement and deformation, these replacements and deformations are all within the protection scope of the patent of the present invention.

Claims (10)

1. a kind of slipping tail fixture, including crossbeam, it is characterised in that: be rotatably connected with two on the crossbeam and stretch out downward Clamp arm is connected with the grip block for clamping blade on the clamp arm, and two grip blocks are oppositely arranged, above the crossbeam Equipped with the suspension hook for lifting, the drawstring extended downwardly is connected on suspension hook, the both ends that drawstring extends downwardly are connected to two On a clamp arm.

2. a kind of slipping tail fixture according to claim 1, it is characterised in that: there are two being rotatably coupled on the crossbeam Rotation axis is connected with synchromesh gear one in one rotation axis, the synchromesh gear two being connected in another rotation axis, synchromesh gear One and synchromesh gear two be meshed, synchromesh gear one is identical with the number of teeth of synchromesh gear two, and two clamp arms are separately connected In two rotation axis.

3. a kind of slipping tail fixture according to claim 2, it is characterised in that: the both ends of the crossbeam are hinged with linear drives Device, the linear actuator are equipped with the push-pull rod for tilting down and stretching out and can reciprocatingly moving, and the push-pull rod extends downwardly One end be hinged on clamp arm.

4. a kind of slipping tail fixture according to claim 1, it is characterised in that: be fixedly connected with support on the clamp arm Beam, the rear and front end of the supporting beam are respectively hinged with the attachment beam that can be swung.

5. a kind of slipping tail fixture according to claim 4, it is characterised in that: being connected on the attachment beam can swing up and down Support shaft, the grip block be equipped with bulb mounting base, support shaft put in bulb mounting base one end be bulb, bulb installation Seat can be swung with respect to bulb.

6. a kind of slipping tail fixture according to claim 1, it is characterised in that: the side of the crossbeam is connected at least one Traction device, the traction device include capstan winch, and the lifting rope upwardly extended is connected on the capstan winch, and the lifting rope, which is connected to, to be hung On hook, angular adjustment rope is full of in the capstan winch, the end that angular adjustment rope extends downwardly is connected with drag hook, is connected on drag hook The lower end of the connecting rope extended downwardly, the connecting rope is hinged on crossbeam.

7. a kind of slipping tail fixture according to claim 6, it is characterised in that: the crossbeam is equipped with lifting connection component, The lifting connection component includes the fixed part being fixedly connected on crossbeam, and the lower hinge of fixed part one end backwards has for connecting Connect the interconnecting piece of drawstring, be provided with sliding slot on interconnecting piece, the top of fixed part one end backwards is hinged with moving portion, moving portion to The one end stretched out afterwards can be slided along sliding slot.

8. a kind of slipping tail fixture according to claim 1, it is characterised in that: for preventing there are two being also connected on the crossbeam The limit pad of blade inlet edge is protected, the center symmetric setting about crossbeam in length direction is padded in two limits.

9. a kind of slipping tail fixture according to claim 1, it is characterised in that: the downside of the clamp arm rotatably connects Have can the holding claw that rotates of front and back, the clamping face of two holding claws is oppositely arranged, and is successively arranged connection from top to bottom in the holding claw Ear upper connecting ear and lower connecting ear are hinged with the connector extended downwardly on the clamp arm, when holding claw is vertical, connector to The end of lower stretching is connect with upper connecting ear, when holding claw is bonded on the ground, end and lower connection that connector extends downwardly Ear connection.

10. the method that a kind of described in any item slipping tail fixtures carry out slipping tail hoisting blade according to claim 1~9, feature It is, comprising the following steps:

(1) first wind blade and wind hub are assembled, is placed on ground, hang wind hub with main crane, auxiliary crane is hung Connector is connected in lower connecting ear by firmly slipping tail fixture, and holding claw is vertical with clamp arm, and auxiliary crane hangs slipping tail fixture from blade Leading edge to whereabouts, make blade between two grip blocks；

(2) linear actuator acts, and grip block is worked as in two engaged transmission of synchromesh gear one and synchromesh gear, grip block relative movement When contacting with blade surface, grip block can be swung with front-rear direction in left and right directions respectively, and blade is clamped board clamping, will connect Part is connected in upper connecting ear, and holding claw is vertical；

(3) it controls after main crane and auxiliary crane rise to enough height simultaneously, auxiliary crane hangs that slipping tail fixture is slowly downward, and master hangs Vehicle slowly rises, while traction device acts, and the length of angular adjustment rope changes, and lifting adjusts module position and changes, and adjusting is slipped The position of centre of gravity of tail fixture, until blade gradually tilts final state in a vertical shape, the slipping tail for carrying out blade is lifted, and slipping tail has lifted Cheng Hou, traction device movement, adjusts the length of angular adjustment rope again, and lifting connection component is made to return to initial position；

(4)) linear actuator counteragent, two engaged transmission of synchromesh gear one and synchromesh gear, grip block are moved away from, clamp Plate unclamps blade, and auxiliary crane drives slipping tail fixture to be detached from blade.