CN110980541A

CN110980541A - Self-climbing wind power maintenance crane

Info

Publication number: CN110980541A
Application number: CN201911150589.2A
Authority: CN
Inventors: 丁建国; 卢光辉; 王文彬; 马伟; 卜高峰; 陈玉超; 陈华兵
Original assignee: Shanghai Xihua Machinery Engineering Co ltd
Current assignee: Shanghai Xihua Machinery Engineering Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-04-10

Abstract

The invention discloses a self-climbing wind power maintenance crane, which belongs to the technical field of hoisting equipment and comprises the following components: from climbing device and hoisting device, be equipped with hydraulic winch on climbing the device certainly, hoisting device includes: climbing mechanism and hoist body, climbing mechanism locates the below from climbing the device, on climbing mechanism's lateral wall was located to the hoist body, from climbing the device and being used for climbing along the pylon and reacing predetermined operating position, and stabilize and adhere to on the pylon, hydraulic winch is used for pulling climbing mechanism and goes up and down along the pylon, drive the hoist body simultaneously and go up and down along the pylon, climbing mechanism is used for pulling climbing along the pylon at the hoist body internal traction in-process, and stabilize and adhere to on the pylon when the hoist body reachs the operation position. The climbing device is stable and efficient, good in reliability, small in equipment size, small in weather influence, convenient to assemble and disassemble and quick in transition, cost of wind power maintenance operation is effectively reduced, and efficiency and income are improved.

Description

Self-climbing wind power maintenance crane

Technical Field

The invention relates to the technical field of hoisting equipment, in particular to a self-climbing wind power maintenance crane.

Background

Currently, the wind power industry is increasing at a high speed, wind power equipment is continuously developing towards a high-power and high-tower barrel, and a wind power plant is mostly in areas such as mountains, gobi, wilderness, inshore and shallow sea with traffic inconvenience and severe environment, so that the requirements on equipment for installation and maintenance of a fan are higher and higher, the operation difficulty is higher and higher, and the hoisting cost is greatly increased.

The quality guarantee period of the fan is generally 5 years, the fan installed in the explosive growth period is basically all out of the quality guarantee period, the early design and manufacturing technical level is not high, and the failure rate of the unit is higher after running for several years.

At present, when a wind field is overhauled and maintained, large-scale equipment such as a crawler crane, an all-terrain crane, a marine crane ship or a self-elevating operation platform with large lifting capacity and high lifting height used in wind power installation is still generally adopted for construction, and the problem of small size is solved. These main equipments purchase or lease expense are high, if only maintain a small amount of fans then with high costs, often wait until the fan of damage reaches certain quantity just maintain concentratedly, this has caused huge abandon wind loss, simultaneously because the fan can not get timely maintenance and have the potential safety hazard, in addition these main equipments because the size is big, the tower bottom holding surface is big to the high of top of the tower, easily receives bad weather influences such as strong wind, the transition is slower, maintenance efficiency is low. The wind power maintenance hoisting equipment with small size, strong adaptability and low cost is urgently needed in the wind power operation and maintenance industry.

In view of the above, a self-climbing crane appears in the art, such as CN105271010, and such a crane is generally provided with an upper arm and a lower arm capable of holding a tower, and the arm is moved in steps along the length direction of the tower by using the expansion and contraction of a cylinder arranged between the upper arm and the lower arm.

This kind of from climbing hoist's problem lies in, climb from climbing device and hoisting apparatus simultaneously during the climbing, lead to climbing the device load too big and effective lifting capacity is limited, and the flexible alternate step change motion of hydro-cylinder that its adopted belongs to intermittent motion, the impact that the hydro-cylinder opened and shut when reducing the step change, the hydro-cylinder is flexible speed slow, climbing efficiency is lower, its self-adaptation armful arm structure and action are all more complicated, armful arm tightens up the hydro-cylinder and only leans on the hydraulic pressure lock to lock, if leak in hydraulic pressure lock inefficacy or the pneumatic cylinder and all have the risk that makes armful arm loosen, climbing efficiency is lower, the reliability is lower.

Disclosure of Invention

The self-climbing crane has the advantages that the problem of the existing self-climbing crane is solved, the self-climbing wind power maintenance crane is provided, climbing is stable and efficient, reliability is good, the size of equipment is small, weather influence is small, assembly and disassembly are convenient, transition is fast, cost of wind power maintenance operation is effectively reduced, and efficiency and income are improved.

The specific technical scheme is as follows:

a self-climbing wind power maintenance crane comprising: from climbing device and hoisting device, be equipped with hydraulic winch on climbing the device certainly, hoisting device includes: the climbing mechanism is arranged below the self-climbing device, the crane body is arranged on the side wall of the climbing mechanism, the self-climbing device is used for climbing along a tower column to reach a preset working position and being firmly attached to the tower column, the hydraulic winch is used for drawing the climbing mechanism to ascend and descend along the tower column and simultaneously driving the crane body to ascend and descend along the tower column, and the climbing mechanism is used for climbing along the tower column in the process that the crane body is drawn to climb and is firmly attached to the tower column when the crane body reaches an operation position.

Foretell climbing formula wind-powered electricity generation maintenance crane, wherein, climbing device includes:

the first arm-embracing component is arranged on the outer wall of the tower column and is used for adapting to the range change of the diameter of the tower column;

the plurality of driving wheel assemblies are arranged on the first arm-embracing assembly and are used for driving the self-climbing device to climb along the outer wall of the tower column, and the first arm-embracing assembly is used for providing pressing force capable of generating friction force required by climbing motion for the driving wheel assemblies;

and the clamping assemblies are arranged on the first arm-embracing assembly, and the clamping assemblies are used for clamping the outer wall of the tower column when the self-climbing device is at the preset working position.

The self-climbing wind power maintenance crane comprises:

the two second arm-embracing components are arranged on the outer wall of the tower column and are used for adapting to the range change of the diameter of the tower column;

the upper end and the lower end of each of the two connecting beams are fixedly connected with two sides of the two second arm-embracing assemblies respectively;

the plurality of telescopic wheel assemblies are respectively arranged on the two second arm-embracing assemblies and are used for being matched with the outer wall of the tower column in a rolling manner in the process that the hoisting device is dragged to climb;

and the plurality of embracing claws are respectively arranged on the two second embracing arm components, and the plurality of embracing claws are used for embracing the outer wall of the tower column through the contraction of the two second embracing arm components when the hoisting device reaches the operation position.

Foretell climb formula wind-powered electricity generation and maintain hoist certainly, wherein, first armful arm subassembly and each the arm subassembly is embraced to the second all includes: a plurality of four corner case of a plurality of flexible arm, it is a plurality of flexible arm and a plurality of corner case interval sets up, and connects gradually and form annular frame.

Foretell climbing formula wind power maintenance hoist, wherein, each flexible arm all includes:

one end of each of the two first arms is detachably connected with the two adjacent corner boxes respectively;

one ends of the two second arms are respectively movably connected with the other ends of the two first arms, and the other ends of the two second arms are fixedly connected;

the two telescopic oil cylinders are respectively arranged in the two second arms, one ends of the two telescopic oil cylinders are respectively fixedly connected with the other ends of the two second arms, and the other ends of the two telescopic oil cylinders respectively extend into the other ends of the two first arms and are respectively fixedly connected with the two first arms.

Foretell climbing formula wind-powered electricity generation and maintaining hoist, wherein, each flexible wheel subassembly all includes:

the telescopic rod is arranged on the holding claw or the second holding arm component;

the hydraulic cylinder is arranged in the telescopic rod and used for driving the telescopic rod to extend and retract;

the guide wheels are rotatably connected with the end parts of the telescopic rods and are used for being matched with the outer wall of the tower column in a rolling mode.

The self-climbing wind power maintenance crane is characterized in that the crane body is fixedly connected with the second arm holding assembly through a bracket, the upper end and the lower end of the bracket are fixedly connected with the side wall of the second arm holding assembly respectively, and the crane body is arranged on the bracket.

Foretell climbing formula wind power maintenance crane, wherein, the crane body includes:

the rotary table is rotatably connected with the upper end of the bracket;

the lower end of the telescopic arm support is fixedly connected with the rotary table, and the upper end of the telescopic arm support is provided with a lifting appliance mechanism;

the lower end of the luffing mechanism is fixedly connected with the rotary table, the upper end of the luffing mechanism is fixedly connected with the telescopic boom, and the luffing mechanism is used for realizing luffing motion of the telescopic boom;

the two hoisting mechanisms are arranged on the rotary table and symmetrically positioned on two sides of the telescopic arm support, and are in transmission connection with the lifting mechanism, and the two hoisting mechanisms are used for realizing the lifting motion of the lifting mechanism and realizing the balance of the lifting mechanism during the lifting motion.

Foretell climbing formula wind-powered electricity generation maintains hoist, wherein, each the initiative wheel subassembly all includes:

the frame is fixedly connected with the first arm-embracing component;

the two driving mechanisms are arranged on the frame;

and the two wheels are in transmission connection with the two driving mechanisms respectively.

Foretell climbing formula wind-powered electricity generation and maintaining hoist, wherein, each the centre gripping subassembly all includes:

the support is fixedly connected with the first arm-embracing component;

the middle part of the balance beam is rotationally connected with the support;

one ends of the two clamping oil cylinders are respectively and fixedly connected with two ends of the balance beam;

and the two clamping blocks are respectively and fixedly connected with the other ends of the two clamping oil cylinders.

Foretell climb formula wind-powered electricity generation and maintain hoist, wherein, first armful arm subassembly still includes:

the guide rollers are arranged on the outer wall of the first arm-embracing component at equal intervals along the periphery of the first arm-embracing component;

the two hydraulic winding wheels are arranged on the outer wall of the first arm-embracing component and are positioned between any two adjacent guide rollers;

and each rope is in transmission connection with the four guide rollers and the two hydraulic winding wheels.

Compared with the prior art, the technical scheme has the positive effects that:

the self-climbing lifting device comprises a self-climbing device and a lifting device which are separated, wherein the self-climbing device is used for climbing to the top of a tower in a rolling mode along a tower column, the lifting device is lifted to an operation position by a hydraulic winch arranged on the self-climbing device, and the lifting device is used for performing maintenance lifting operation after being lifted to the operation position by the hydraulic winch. The device has the advantages of small size, light dead weight of each moving part, stable and efficient climbing motion, high reliability, large diameter change range of the tower which can be self-adapted, strong adaptability, good stability, small influence by severe weather such as strong wind and the like, convenience in dismounting and converting, capability of effectively reducing the maintenance cost of onshore and offshore wind power equipment and improving the maintenance efficiency, and the tower is attached to the top of the tower for hoisting operation.

Drawings

FIG. 1 is a schematic view of the overall structure of a self-climbing wind power maintenance crane according to the present invention;

FIG. 2 is a schematic diagram of a state of a traction hoisting device of a self-climbing device in the self-climbing wind power maintenance crane according to the invention;

FIG. 3 is a schematic structural diagram of a hoisting device in a self-climbing wind power maintenance crane according to the present invention;

fig. 4 is a schematic structural diagram of a first embodiment of a first arm-embracing assembly and a second arm-embracing assembly in the self-climbing wind power maintenance crane according to the present invention;

FIG. 5 is a schematic structural diagram of a driving wheel assembly in the self-climbing wind power maintenance crane according to the present invention;

FIG. 6 is a schematic structural diagram of a clamping assembly in the self-climbing wind power maintenance crane according to the present invention;

FIG. 7 is a schematic structural diagram of a retractable wheel assembly in a self-climbing wind power maintenance crane according to the present invention;

fig. 8 is a schematic structural diagram of a second embodiment of a first arm-embracing assembly in the self-climbing wind power maintenance crane according to the present invention;

in the drawings: 1. a self-climbing device; 2. a hoisting device; 3. a hydraulic winch; 4. a climbing mechanism; 5. a crane body; 6. a tower column; 7. a bracket; 11. a first arm-embracing component; 12. an active wheel assembly; 121. A frame; 122. a drive mechanism; 123. a wheel; 13. a clamping assembly; 131. a support; 132. a balance beam; 133. clamping the oil cylinder; 134. a clamping block; 17. a guide roller; 18. a hydraulic reel; 19. a rope; 31. a telescopic arm; 311. a first arm; 312. a second arm; 313. a telescopic oil cylinder; 32. a corner box; 41. a second arm-embracing component; 42. a connecting beam; 43. a retractable wheel assembly; 431. a telescopic rod; 432. A guide wheel; 44. embracing a claw; 51. a turntable; 52. a telescopic arm support; 53. a luffing mechanism; 54. A hoisting mechanism; 55. a spreader mechanism.

Detailed Description

The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

The first embodiment:

fig. 1 is an overall structural schematic diagram of a self-climbing wind power maintenance crane of the present invention, fig. 2 is a state schematic diagram of a hoisting device pulled by a self-climbing device in the self-climbing wind power maintenance crane of the present invention, fig. 3 is a structural schematic diagram of the hoisting device in the self-climbing wind power maintenance crane of the present invention, fig. 4 is a structural schematic diagram of a first arm component and a second arm component in the self-climbing wind power maintenance crane of the present invention, fig. 5 is a structural schematic diagram of a driving wheel component in the self-climbing wind power maintenance crane of the present invention, fig. 6 is a structural schematic diagram of a clamping component in the self-climbing wind power maintenance crane of the present invention, fig. 7 is a structural schematic diagram of a telescopic wheel component in the self-climbing wind power maintenance crane of the present invention, and fig. 1 to 7 show a self-climbing wind power maintenance crane of a preferred embodiment, the method comprises the following steps: from climbing device 1 and hoisting device 2, set up hydraulic winch 3 on climbing the device certainly, hoisting device 2 includes: climbing mechanism 4 and crane body 5, climbing mechanism 4 is located from climbing device 1's below, crane body 5 is located on climbing mechanism 4's the lateral wall, from climbing device 1 is used for climbing along the pylon 6 and reachs predetermined operating position, and stabilize and adhere to on the pylon 6, hydraulic winch 3 is used for pulling climbing mechanism 4 and goes up and down along the pylon 6, drive crane body 5 and go up and down along the pylon 6 simultaneously, climbing mechanism 4 is used for being pulled at crane body 5 and climbs the in-process along the pylon 6, and stabilize and adhere to on the pylon 6 when crane body 5 reachs the operation position.

Preferably, the hydraulic winch 3 is fixedly connected with the climbing mechanism 4 through a rope, and the hydraulic winch 3 is in transmission connection with the climbing mechanism 4.

Further, as a preferred embodiment, the self-climbing apparatus 1 includes: a first armful of arm subassembly 11, a plurality of initiative wheel subassembly 12 and a plurality of centre gripping subassembly 13, first armful of arm subassembly 11 is located on the outer wall of pylon 6, first armful of arm subassembly 11 is used for adapting to the range change of the diameter of pylon 6, a plurality of initiative wheel subassemblies 12 are all located on the inner wall of first armful of arm subassembly 11, a plurality of initiative wheel subassemblies 12 are used for driving from climbing device 1 and climb along the outer wall of pylon 6, and first armful of arm subassembly 11 is used for providing the packing force that can produce the required frictional force of climbing motion for initiative wheel subassembly 12, a plurality of centre gripping subassemblies 13 are all located on the inner wall of first armful of arm subassembly 11, a plurality of centre gripping subassemblies 13 are used for the outer wall of tight pylon 6 of self-climbing device 1 when predetermined operating position.

Preferably, the first boom assembly 11 is adapted to change the diameter range of the tower 6 under the cooperative telescoping action of the telescoping cylinder 313.

Preferably, the first arm-embracing assembly 11 is provided with a pressure sensor, a displacement sensor and an inclination angle sensor.

Further, as a preferred embodiment, climbing mechanism 4 comprises: two second embrace arm subassembly 41, two at least tie-beams 42, a plurality of flexible wheel subassembly 43 and a plurality of claws 44 of embracing, two second embrace arm subassembly 41 all locates on the outer wall of pylon 6, two second embrace arm subassembly 41 all is used for adapting to the range change of the diameter of pylon 6, the both sides of two second embrace arm subassembly 41 of fixed connection respectively at the upper and lower both ends of two tie-beams 42, a plurality of flexible wheel subassemblies 43 are located respectively on the inner wall of two second embrace arm subassembly 41, a plurality of flexible wheel subassemblies 43 are used for being drawn the climbing in-process and the outer wall roll fit of pylon 6 at hoisting apparatus 2, a plurality of claws 44 of embracing are located respectively on the inner wall of two second embrace arm subassembly 41, a plurality of claws 44 are used for embracing the shrink of arm subassembly 41 through two second when hoisting apparatus 2 reachs the operation position, embrace the outer wall of pylon 6 tightly.

Preferably, the clasps 44 are used to clasp the tower 6 after the retractable wheel assembly 43 is retracted, reducing the contact pressure.

Preferably, the upper end and the lower end of one connecting beam 42 are respectively and fixedly connected to one side of one second arm embracing component 41 and one side of the other second arm embracing component 41, and the upper end and the lower end of the other connecting beam 42 are respectively and fixedly connected to the other side of the one second arm embracing component 42 and the other side of the other second arm embracing component 42.

The above are merely preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.

The present invention also has the following embodiments in addition to the above:

in a further embodiment of the present invention, with continued reference to fig. 1 to 7, the first arm embracing assembly 11 and each second arm embracing assembly 12 each include: a plurality of flexible arms 31 and a plurality of corner case 32, a plurality of flexible arms 31 and a plurality of corner case 32 interval set up, and connect gradually and form annular frame.

Preferably, the first arm embracing assembly 11 and the second arm embracing assembly 41 have the same structure and principle.

Preferably, the first arm embracing assembly 11 and each second arm embracing assembly 41 each include: four telescopic boom 31 and four corner case 32, four telescopic boom 31 and four corner case 32 interval set up, and connect gradually and form square frame.

In a further embodiment of the invention, each telescopic arm 31 comprises: the two first arms 311, the two second arms 312 and the two telescopic oil cylinders 313, wherein one end of each of the two first arms 311 is detachably connected with the two adjacent corner boxes 32, one end of each of the two second arms 312 is movably connected with the other end of each of the two first arms 311, the other ends of the two second arms 312 are fixedly connected, the two telescopic oil cylinders 313 are arranged in the two second arms 312, one ends of the two telescopic oil cylinders 313 are fixedly connected with the other ends of the two second arms 312, and the other ends of the two telescopic oil cylinders 313 extend into the other ends of the two first arms 311 and are fixedly connected with the two first arms 311.

Preferably, one ends of the two second arms 312 are slidably or rollably connected to the other ends of the two first arms 311, respectively.

Preferably, each telescopic arm further comprises: the mechanical locking device can adopt a mechanical locking device which is arranged in a hydraulic cylinder, and also can adopt a wedge block mechanism or a gear rack and other locking mechanisms which act between the first arm and the second arm.

Preferably, each telescopic arm further comprises: and the two hydraulic locking devices are respectively arranged in oil paths of the two telescopic oil cylinders 313 and are balance valves or hydraulic locks.

In a further embodiment of the present invention, each retractable wheel assembly 43 comprises: the telescopic rod 431 is arranged on the embracing claw 44 or the inner wall of the second embracing arm assembly 41, the hydraulic cylinder is arranged in the telescopic rod 431 and is used for driving the telescopic rod 431 to expand and contract, the guide wheel 432 is rotatably connected with the end part of the telescopic rod 431, and the guide wheel 432 is used for being matched with the outer wall of the tower column 6 in a rolling manner.

Preferably, the guide wheels 432 are made of polyurethane or rubber, and further, the material of the contact part of the guide wheels 432 and the outer wall of the tower 6 is made of polyurethane or rubber.

In a further embodiment of the present invention, the crane body 5 is fixedly connected to the two second arm embracing assemblies 41 through the bracket 7, the upper and lower ends of the bracket 7 are respectively fixedly connected to the sidewalls of the two second arm embracing assemblies 41, and the crane body 5 is disposed on the bracket 7.

Preferably, the carriage 7 is used to support a crane body.

In a further embodiment of the invention, the crane body 5 comprises: the lifting device comprises a rotary table 51, a telescopic arm support 52, a luffing mechanism 53 and two lifting mechanisms 54, wherein the rotary table 51 is rotatably connected with the upper end of a bracket 7, the lower end of the telescopic arm support 52 is fixedly connected with the rotary table 51, the upper end of the telescopic arm support 52 is provided with a lifting appliance mechanism 55, the lower end of the luffing mechanism 53 is fixedly connected with the rotary table 51, the upper end of the luffing mechanism 53 is fixedly connected with the telescopic arm support 52, the luffing mechanism 53 is used for realizing the luffing motion of the telescopic arm support 52, the two lifting mechanisms 54 are both arranged on the rotary table 51, the two lifting mechanisms 54 are symmetrically positioned on both sides of the telescopic arm support 52, the two lifting mechanisms 54 are both in transmission connection with the lifting appliance mechanism 55, and the two lifting mechanisms 54 are both used for realizing the lifting motion.

Preferably, the crane body 5 is used for realizing rotation, amplitude variation and lifting movement required for hoisting operation.

Preferably, the turntable 51 is driven by a hydraulic motor.

In a further embodiment of the present invention, each active wheel assembly 12 includes: the frame 121 is fixedly connected with the inner wall of the first arm-embracing component 11, the two driving mechanisms 122 are arranged on the frame 121, and the two wheels 123 are respectively in transmission connection with the two driving mechanisms 122.

Preferably, the wheels are solid tires and the drive mechanism 122 is a hydraulic motor or a reduction motor with brakes and a speed sensor.

In a further embodiment of the invention, each clamping assembly 13 comprises: the support 131 is fixedly connected with the inner wall of the first arm embracing assembly 11, the middle of the balance beam 132 is rotatably connected with the support 131, one end of each of the two clamping cylinders 133 is fixedly connected with two ends of the balance beam 132, and the other end of each of the two clamping cylinders 133 is fixedly connected with the corresponding clamping block 134.

Preferably, the plurality of driving wheel assemblies 12 and the plurality of clamping assemblies 13 are fixedly connected with the four-corner box 32 or the four telescopic arms 31 respectively.

Preferably, the plurality of active wheel assemblies 12 are four active wheel assemblies 12, and the four active wheel assemblies 12 are fixedly connected with a four-corner box 32 or a four-telescopic arm 31 respectively.

Preferably, the plurality of clamping assemblies 13 are eight clamping assemblies 13, the eight clamping assemblies 13 are respectively and fixedly connected with the four-corner box 32 or the four telescopic arms 31, and every two clamping assemblies 13 are respectively located at two sides of one driving wheel assembly 12.

Preferably, a front end flange of the clamping cylinder 133 is connected to the balance beam 132, and a piston rod of the clamping cylinder 133 is connected to the clamping block 134.

Preferably, the driving wheel assembly 12 and the clamping assembly 13 are connected with the telescopic arm 31 and the corner box 32 of the self-climbing device 1, so that the tension of the telescopic cylinder 313 is small, namely if the pressing force required by each corner is F, the tension of the telescopic cylinder 313 is 0.707F.

Second embodiment:

fig. 8 is a schematic structural diagram of a second embodiment of a first arm-embracing assembly in a self-climbing wind power maintenance crane according to the present invention, and as shown in fig. 8, the second embodiment has the same main structure as the first embodiment, except that: the first arm module 11 further includes: a plurality of guide idler wheels 17, two hydraulic pressure winding wheels 18 and two at least ropes 19, the outer wall of first armful arm subassembly 11 is all located to a plurality of guide idler wheels 17, a plurality of guide idler wheels 17 are the equidistant setting along the periphery of first armful arm subassembly 11, the outer wall of first armful arm subassembly 11 is all located to two hydraulic pressure winding wheels 18, two hydraulic pressure winding wheels 18 all are located between arbitrary double-phase adjacent guide idler wheel 17, each rope 19 is connected with four guide idler wheels 17, two hydraulic pressure winding wheels 18 transmission respectively. Preferably, the hydraulic reel 18 is provided with a brake.

Preferably, the cord 19 is a flexible cord.

Preferably, the four guide rollers 17 are arranged at equal intervals along the periphery of the first arm embracing assembly 11.

Preferably, the service life of the arm-embracing component can be prolonged by two or more ropes, and the two or more ropes are arranged in parallel.

The invention uses a hydraulic reel 18 to tighten the rope 19 wound on four guide rollers 17 around the outer circumference of the arm embracing assembly 1 to realize the contraction action.

The hydraulic winch 3 on the self-climbing device 1 can also be moved and installed on the hoisting device according to the use working condition.

When hoisting operation such as a gear box, an engine, a blade and the like is carried out, firstly, the first arm-embracing component 11 of the self-climbing device 1 is contracted, so that the driving wheel component 12 is pressed on the outer wall of the tower column 6, the clamping oil cylinder 133 is in a retraction state, the clamping block 134 is not in contact with the outer wall of the tower column 6, the driving mechanism 122 drives the wheels 123 to roll and climb to the top of the tower column 6 along the outer wall of the tower column 6, the clamping component 13 acts to prop against the outer wall of the tower column tightly, then the hoisting device is pulled to ascend and descend along the tower column by using a hydraulic winch, the telescopic wheel component 43 is in an extension state, the embracing claw 44 is not in contact with the outer wall of the tower column during the pulling and climbing process, the telescopic wheel component 43 is in a retraction state after the hoisting device 2 reaches a working position, the embracing claw 44 embraces the outer wall of the tower column 6.

After the hoisting operation is finished, the hoisting device 2 is placed on the ground by using the hydraulic winch 3, if maintenance operations such as detection, cleaning or coating and the like are required to be carried out on the tower 6, the maintenance hanging basket can be lifted to an operation position by using the hydraulic winch 3, the hanging basket is put down after the operation is finished, the self-climbing device 1 climbs to the bottom of the tower 6 from the top of the tower 6, and then disassembly and transition can be carried out.

The self-climbing wind power maintenance crane provided by the invention comprises two separated moving parts, namely a self-climbing device 1 and a hoisting device 2, the self weight of each moving part is light, the self-climbing wind power maintenance crane adopts a wheel type continuous rolling mode, the climbing motion is stable and efficient, and the lifting efficiency of a hydraulic winch 3 is also high.

The first arm embracing component 11 and the second arm embracing component 41 are both locked by hydraulic pressure and machinery, so that the device is high in reliability, large in diameter change range of the self-adaptive tower column 6 and high in adaptability.

The device is small in size, is attached to the top of the tower column 6 for hoisting operation, is good in stability and is less affected by severe weather such as strong wind.

The wind power tower crane has the advantages that the effective lifting capacity is large, large-scale components such as a gear box, a generator and blades of the wind turbine can be integrally replaced, a hanging basket can be carried to perform maintenance operations such as detection, cleaning and coating of the tower, the function combination is diversified, the maintenance efficiency is high, the dismounting and the transition are convenient, the maintenance cost of onshore and offshore wind power equipment can be effectively reduced, and the maintenance efficiency is improved.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a hoist is maintained to self-climbing formula wind-powered electricity generation which characterized in that includes: from climbing device and hoisting device, set up hydraulic winch on climbing the device certainly, hoisting device includes: the climbing mechanism is arranged below the self-climbing device, the crane body is arranged on the side wall of the climbing mechanism, the self-climbing device is used for climbing along a tower column to reach a preset working position and being firmly attached to the tower column, the hydraulic winch is used for drawing the climbing mechanism to ascend and descend along the tower column and simultaneously driving the crane body to ascend and descend along the tower column, and the climbing mechanism is used for climbing along the tower column in the process that the crane body is drawn to climb and is firmly attached to the tower column when the crane body reaches an operation position.

2. The self-climbing wind power maintenance crane according to claim 1, wherein the self-climbing device comprises:

3. The self-climbing wind power maintenance crane according to claim 2, wherein the climbing mechanism comprises:

4. The self-climbing wind power maintenance crane according to claim 3, wherein the first arm assembly and each of the second arm assemblies comprise: the telescopic arm and the corner boxes are arranged at intervals and are sequentially connected to form an annular frame.

5. The self-climbing wind power maintenance crane according to claim 4, wherein each of the telescopic booms comprises:

one ends of the two second arms are movably connected with the other ends of the two first arms, and the other ends of the two second arms are fixedly connected;

6. The self-climbing wind power maintenance crane according to claim 3, wherein each of the retractable wheel assemblies comprises:

7. The self-climbing wind power maintenance crane according to claim 1, wherein the crane body is fixedly connected to the two second arm holding assemblies through a bracket, upper and lower ends of the bracket are respectively fixedly connected to side walls of the two second arm holding assemblies, and the crane body is disposed on the bracket.

8. The self-climbing wind power maintenance crane according to claim 6, wherein the crane body comprises:

the rotary table is rotatably connected with the upper end of the bracket;

9. The self-climbing wind power maintenance crane according to claim 2, wherein each of the driving wheel assemblies comprises:

the frame is fixedly connected with the first arm-embracing component;

the two driving mechanisms are arranged on the frame;

10. The self-climbing wind power maintenance crane according to claim 2, wherein each of the clamping assemblies comprises:

the support is fixedly connected with the first arm-embracing component;

the middle part of the balance beam is rotationally connected with the support;

11. The self-climbing wind power maintenance crane according to claim 4, wherein the first arm assembly further comprises: