CN117023414A - Split type hoisting system for crane on tower of wind generating set - Google Patents

Split type hoisting system for crane on tower of wind generating set Download PDF

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Publication number
CN117023414A
CN117023414A CN202311266726.5A CN202311266726A CN117023414A CN 117023414 A CN117023414 A CN 117023414A CN 202311266726 A CN202311266726 A CN 202311266726A CN 117023414 A CN117023414 A CN 117023414A
Authority
CN
China
Prior art keywords
main
auxiliary
crane
base
pulley
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202311266726.5A
Other languages
Chinese (zh)
Inventor
马涛
刘作广
苑小威
李�瑞
李�荣
谢丹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Gololi Technology Co ltd
Original Assignee
Shanghai Gololi Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Gololi Technology Co ltd filed Critical Shanghai Gololi Technology Co ltd
Priority to CN202311266726.5A priority Critical patent/CN117023414A/en
Publication of CN117023414A publication Critical patent/CN117023414A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/185—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use erecting wind turbines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
    • B66C11/04—Underhung trolleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/06—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/82—Luffing gear
    • B66C23/821—Bracing equipment for booms
    • B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
    • B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable

Abstract

The invention provides a split type hoisting system for a crane on a tower of a wind generating set, which comprises a main crane and an auxiliary crane, wherein the auxiliary crane comprises an auxiliary base, a hanging bracket, an auxiliary hanging arm, a traction rope and an auxiliary power unit, and the auxiliary base, the hanging bracket and the auxiliary hanging arm are detachably connected; the main crane comprises a main base, a main suspension arm, a hydraulic cylinder, a pulley block, a steel wire rope and a main power unit, wherein the main base, the main suspension arm and the hydraulic cylinder are detachably connected, the hydraulic cylinder is connected with the main base and the main suspension arm, one end of the main suspension arm is connected with the main base, the other end of the main suspension arm is provided with a main lifting hook, one end of the steel wire rope is connected with the main lifting hook, the other end of the steel wire rope bypasses the pulley block to be connected with the main power unit, and the main power unit is suitable for tensioning or releasing the steel wire rope. According to the split type hoisting system for the tower crane of the wind generating set, provided by the invention, each part of the main crane and the auxiliary crane is gradually installed in the engine room, so that the hoisting of the tower crane is easily completed under the condition that large hoisting equipment is not needed.

Description

Split type hoisting system for crane on tower of wind generating set
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to a split type hoisting system for a crane on a tower of a wind generating set.
Background
With the increasing installed capacity of wind turbines and the increasing annual growth of service life of wind turbines, wind turbine units are required to be replaced with components, in particular blades, and include a tower fixed to the ground, a nacelle mounted on top of Yu Datong, a hub mounted on the nacelle, and blades mounted on the hub.
Because the blades are heavy and the height of the tower barrel is higher, at present, a large-sized automobile crane is adopted for blade replacement of a general wind generating set, a crawler crane is required to be adopted for a high-tower fan with a large megawatt to complete blade replacement, and a landing leg ship is required to be used for blade replacement of an offshore wind driven generator. However, the use of large hoisting equipment not only generates high hoisting costs, but also is subject to environmental conditions. If a small crane on a tower, which is convenient to install, can be provided, the efficiency of blade replacement can be greatly improved, and the cost of blade replacement can be reduced.
Therefore, there is a need for a split hoisting system for a crane on a wind turbine tower for solving the above problems.
Disclosure of Invention
The invention provides a split type hoisting system for a tower crane of a wind generating set, which is characterized in that all parts of a main crane and an auxiliary crane are gradually installed in a cabin, so that the hoisting of the tower crane is easily completed under the condition that large hoisting equipment is not needed.
In order to achieve the above purpose, the present invention provides the following technical solutions.
The split type hoisting system comprises a main crane and an auxiliary crane for hoisting the main crane, wherein the auxiliary crane comprises an auxiliary base, a hanging bracket, an auxiliary hanging arm, a traction rope and an auxiliary power unit, and the auxiliary base, the hanging bracket and the auxiliary hanging arm are detachably connected; the main crane comprises a main base, a main suspension arm, a hydraulic cylinder, a pulley block, a steel wire rope and a main power unit, wherein the main base, the main suspension arm and the hydraulic cylinder are detachably connected, the hydraulic cylinder is connected with the main base and the main suspension arm, one end of the main suspension arm is connected with the main base, the other end of the main suspension arm is provided with a main lifting hook, one end of the steel wire rope is connected with the main lifting hook, the other end of the steel wire rope bypasses the pulley block to be connected with the main power unit, and the main power unit is suitable for tensioning or releasing the steel wire rope to lift or put down the main lifting hook;
hoisting each part of the auxiliary crane to the cabin, and gradually installing the parts to an auxiliary installation seat of the cabin to finish the installation of the auxiliary crane; hoisting and mounting the main base to a main mounting seat of the nacelle by the auxiliary hoist; lifting and mounting the hydraulic cylinder to the main base by the auxiliary crane, lifting and mounting the main boom to the main base, and connecting the hydraulic cylinder and the main boom; and connecting the steel wire rope with the main lifting hook by bypassing the pulley block from the main power unit, and completing the installation of the main crane.
Preferably, the main boom is fixedly connected with the main lifting hook through a lifting hook lock, a main boom pulley is installed at one end, connected with the main lifting hook, of the main lifting hook, a main lifting hook pulley is installed on the main lifting hook, a plurality of first sliding grooves are formed in the outer wall of the main boom pulley along the circumferential direction, second sliding grooves matched with the first sliding grooves are formed in the outer wall of the main boom pulley along the circumferential direction, an auxiliary rope is wound on the main boom pulley and the main lifting hook pulley in advance, one end of the auxiliary rope is fixed to the main lifting hook pulley, and the other end of the auxiliary rope sequentially winds the main lifting hook pulley and the main boom pulley along the second sliding grooves and the first sliding grooves and then penetrates out to be free ends;
the free end of the auxiliary rope passes through the pulley block and then is connected with the steel wire rope; the lifting hook lock is disassembled, so that the main boom and the main lifting hook are connected only through the auxiliary rope wound on the main boom pulley and the main lifting hook pulley; releasing the steel wire rope, and releasing the main lifting hook, wherein the steel wire rope sequentially winds the main lifting hook pulley and the main lifting arm pulley along the second sliding groove and the first sliding groove along with the auxiliary rope until one end of the auxiliary rope moves out of the main lifting arm pulley and the main lifting hook pulley, and the other end of the auxiliary rope is connected with the main lifting hook pulley; and (3) dismantling the auxiliary rope, and connecting the steel wire rope with the main lifting hook pulley instead of the auxiliary rope to finish winding and connection of the steel wire rope.
Preferably, the hanger is formed by connecting a plurality of brackets in sequence in a detachable mode, the auxiliary suspension arm is formed by connecting a plurality of suspension arm frames in sequence in a detachable mode, an auxiliary lifting hook is arranged on the auxiliary suspension arm, the traction rope is connected with the auxiliary lifting hook and the auxiliary power unit, and the auxiliary power unit is suitable for tensioning or releasing the traction rope to lift or put down the auxiliary lifting hook;
erecting a temporary hanging frame on the engine room, and connecting the auxiliary hanging hook and the auxiliary power unit through the traction rope of the temporary hanging frame; releasing the traction rope, lifting the auxiliary base onto the cabin and installing the auxiliary base onto the auxiliary installation seat; hanging a plurality of brackets on the engine room one by one and installing the brackets on the auxiliary base to finish the installation of the hanging bracket; the plurality of boom frames are hung on the engine room one by one and are mounted on the hanging frame to complete the mounting of the auxiliary boom; the traction rope is detached from the temporary hanging frame, the auxiliary lifting hook is mounted on the auxiliary hanging arm, the traction rope connected with the auxiliary lifting hook is connected to the auxiliary power unit, and the auxiliary hanging machine is mounted; and removing the temporary hanging bracket.
Preferably, a sliding rail is arranged on the auxiliary suspension arm, a sliding block is arranged on the sliding rail and is suitable for moving along the sliding rail, an auxiliary suspension arm pulley is arranged on the sliding block, and an auxiliary suspension hook pulley is arranged on the auxiliary suspension hook; one end of the traction rope is connected with the auxiliary suspension arm pulley, and the other end of the traction rope bypasses the auxiliary suspension hook pulley and the auxiliary suspension arm pulley to be connected with the auxiliary power unit.
Preferably, the auxiliary base is rotatable relative to the auxiliary mount; releasing the traction rope to lower the auxiliary lifting hook to the main base and connecting the auxiliary lifting hook with the main base; tensioning the traction rope and lifting the main base to the upper part of the cabin; adjusting the rotation angle of the auxiliary base so that the main base hung on the auxiliary crane rotates to the position above the main mounting seat; the position of the sliding block is adjusted, and the auxiliary lifting hook drives the main base to move, so that the main base moves to the position right above the main mounting seat; and releasing the traction rope, lowering the main base to be in contact with the main mounting seat, and fixing the main base and the main mounting seat.
Preferably, a rotating bearing is arranged at the bottom of the auxiliary base, the rotating bearing is connected with the auxiliary mounting seat, a rotating motor is arranged on the auxiliary base, and the auxiliary base can rotate relative to the auxiliary mounting seat under the driving of the rotating motor; the rotating motor is driven to drive the auxiliary base to rotate, so that the main base hung on the auxiliary crane rotates to the upper side of the main mounting seat.
Preferably, the main base comprises a fixed seat, a rotating seat and an adjusting seat which are detachably connected;
hoisting and installing the fixed seat to a main installation seat of the cabin through the auxiliary crane; hoisting and installing the rotating seat to the fixed seat through the auxiliary crane; and lifting the adjusting seat by the auxiliary crane and installing the adjusting seat to the rotating seat to finish the installation of the main base.
Preferably, the tail end of the hydraulic cylinder is connected with the main base, and the telescopic end of the hydraulic cylinder is connected with the main suspension arm; hoisting the hydraulic cylinder through the auxiliary crane, and connecting the tail end of the hydraulic cylinder with the main base; supporting the hydraulic cylinder at a set angle through temporary support; lifting the main boom, connecting one end of the main boom with the main base, and connecting the telescopic end of the hydraulic cylinder with the middle part of the main boom; and removing the temporary support to finish the installation of the hydraulic cylinder and the main boom.
Preferably, the main boom comprises a detachably connected main body portion and end portions; hoisting the main body part through the auxiliary crane, and connecting one end of the main body part far away from the end part with the main base; connecting the telescopic end of the hydraulic cylinder with the middle part of the main body part; and hoisting the end part, and connecting the end part with the main body part to finish the installation of the main boom.
Preferably, after the installation of the main crane is completed, the rotating motor is driven to drive the auxiliary crane to rotate, so that the auxiliary boom is far away from the main crane and is parallel to the cabin.
Compared with the prior art, the technical scheme of the embodiment of the invention has the beneficial effects.
According to the split type hoisting system for the tower crane of the wind generating set, provided by the invention, each part of the main crane and the auxiliary crane is gradually installed in the engine room, so that the hoisting of the tower crane is easily completed under the condition that large hoisting equipment is not needed;
further, the auxiliary crane component is lifted through the traction rope and the auxiliary power unit of the auxiliary crane, the auxiliary crane is installed without using other lifting equipment, the main crane component is lifted and installed through the auxiliary crane, and the auxiliary crane is convenient to install and use;
further, through twining auxiliary rope in advance between main davit pulley and the main lifting hook pulley, through the traction of auxiliary rope, convenient operation's realization wire rope's detours, improves the operating efficiency.
Drawings
FIG. 1 is a schematic diagram of a main crane of a split hoisting system for a crane on a wind turbine tower in an embodiment of the invention;
FIG. 2 is a schematic diagram of an auxiliary crane of a split hoisting system for a crane on a wind turbine tower in an embodiment of the invention;
FIG. 3 is a schematic diagram of an auxiliary hoist installation completion for a split hoist system for a wind turbine tower crane in an embodiment of the present invention;
FIG. 4 is a schematic view of a main foundation installation completion of a split hoist system for a wind turbine tower crane in an embodiment of the present invention;
FIG. 5 is a schematic diagram of a hydraulic cylinder installation of a split hoist system for a wind turbine tower crane in an embodiment of the present invention;
FIG. 6 is a main body portion mounting schematic of a main boom of a split hoist system for a wind turbine tower crane in an embodiment of the invention;
FIG. 7 is a schematic diagram of the main boom installation completion of a split hoist system for a wind turbine tower crane in an embodiment of the present invention;
FIG. 8 is a schematic diagram of the arrangement of a main boom sheave and a main hook sheave and the winding of an auxiliary rope for a split hoist system for a wind turbine generator set tower crane in an embodiment of the invention;
FIG. 9 is a schematic diagram of the auxiliary rope run of a split hoist system for a wind turbine tower crane in an embodiment of the present invention;
FIG. 10 is a schematic view of an auxiliary rope traction cable wrap for a split hoist system for a wind turbine tower crane in an embodiment of the invention.
Reference numerals illustrate:
1. a tower; 2. a nacelle; 3. a main crane; 4. an auxiliary crane;
21. a main mounting base;
22. an auxiliary mounting seat;
31. a main base; 311. A fixing seat; 312. A rotating seat; 313. an adjusting seat;
32. a main boom; 321. a main body portion; 322. an end portion; 324. a main boom pulley;
33. a hydraulic cylinder;
34. a main hook; 341. a main hook pulley; 342. a hook lock;
35. a wire rope;
36. pulley block;
39. an auxiliary rope;
41. an auxiliary base; 411. a rotating bearing; 412. a rotating electric machine;
42. a hanging bracket; 421. a bracket;
43. an auxiliary boom; 431. a slide rail; 432. a boom frame;
44. an auxiliary lifting hook; 441. An auxiliary hook pulley;
46. a slide block; 461. an auxiliary boom pulley.
Detailed Description
In order to make the objects, features and advantageous effects of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the following detailed description is merely illustrative of the invention, and not restrictive of the invention. Moreover, the use of the same, similar reference numbers in the figures may indicate the same, similar elements in different embodiments, and descriptions of the same, similar elements in different embodiments, as well as descriptions of prior art elements, features, effects, etc. may be omitted.
Referring to fig. 1 to 10, an embodiment of the present invention provides a split type lifting system for a crane on a tower of a wind turbine generator.
Specifically, the wind generating set comprises a tower 1 fixed on the ground and a cabin 2 arranged at the top of the tower 1, the tower crane comprises a main crane 3 and an auxiliary crane 4 for hoisting the main crane 3, the auxiliary crane 4 comprises an auxiliary base 41, a hanging bracket 42, an auxiliary hanging arm 43, a traction rope and an auxiliary power unit, and the auxiliary base 41, the hanging bracket 42 and the auxiliary hanging arm 43 are detachably connected; the main crane 3 comprises a main base 31, a main suspension arm 32, a hydraulic cylinder 33, a pulley block 36, a steel wire rope 35 and a main power unit, wherein the main base 31, the main suspension arm 32 and the hydraulic cylinder 33 are detachably connected, the hydraulic cylinder 33 is connected with the main base 31 and the main suspension arm 32, one end of the main suspension arm 32 is connected with the main base 31, the other end is provided with a main lifting hook 34, one end of the steel wire rope 35 is connected with the main lifting hook 34, the other end bypasses the pulley block 36 and is connected with the main power unit, and the main power unit is suitable for tensioning or releasing the steel wire rope 35 to lift or put down the main lifting hook 34;
hoisting each part of the auxiliary crane 4 to the cabin 2, gradually installing the parts on an auxiliary installation seat 22 of the cabin 2, and completing the installation of the auxiliary crane 4; the main base 31 is lifted and mounted to the main mount 21 of the nacelle 2 by the auxiliary crane 4; the hydraulic cylinder 33 is lifted and mounted to the main base 31 by the auxiliary crane 4, the main boom 32 is lifted and mounted to the main base 31, and the hydraulic cylinder 33 and the main boom 32 are connected; the wire rope 35 is connected with the main lifting hook 34 from the main power unit by bypassing the pulley block 36, and the installation of the main crane 3 is completed.
In some embodiments, the hanger 42 is formed by detachably and sequentially connecting a plurality of brackets 421, the auxiliary boom 43 is formed by detachably and sequentially connecting a plurality of boom arms 432, an auxiliary lifting hook 44 is arranged on the auxiliary boom 43, a traction rope is connected with the auxiliary lifting hook 44 and an auxiliary power unit, and the auxiliary power unit is suitable for tensioning or releasing the traction rope to lift or put down the auxiliary lifting hook 44;
erecting a temporary hanging frame on the engine room 2, and connecting a traction rope passing through the temporary hanging frame with an auxiliary hanging hook 44 and an auxiliary power unit; releasing the traction rope, lifting the auxiliary base 41 onto the nacelle 2 and mounting to the auxiliary mount 22; the plurality of brackets 421 are hung on the nacelle 2 one by one and are mounted on the auxiliary base 41, and the mounting of the hanger 42 is completed; the plurality of boom arms 432 are individually suspended on the nacelle 2 and mounted on the hanger 42 to complete the mounting of the auxiliary boom 43; the traction rope is detached from the temporary hanging frame, the auxiliary hanging hook 44 is installed on the auxiliary hanging arm 43, and the traction rope connected with the auxiliary hanging hook 44 is connected to the auxiliary power unit to complete the installation of the auxiliary crane 4; and (5) removing the temporary hanging bracket.
The auxiliary crane component can be lifted by using the temporary lifting frame through the traction rope of the auxiliary crane and the auxiliary power unit, and the auxiliary crane is installed without using other lifting equipment, so that the installation cost is low, and the operation is convenient and quick.
In a specific implementation, the auxiliary power unit is a hoist or a lifter, and the auxiliary power unit is arranged on the cabin.
In some embodiments, the auxiliary boom 43 is provided with a sliding rail 431, the sliding rail 431 is provided with a sliding block 46, the sliding block 46 is suitable for moving along the sliding rail 431, the sliding block 46 is provided with an auxiliary boom pulley 461, and the auxiliary hook 44 is provided with an auxiliary hook pulley 441; one end of the hauling rope is connected with the auxiliary boom pulley 461, and the other end bypasses the auxiliary lifting hook pulley 441 and the auxiliary boom pulley 461 to be connected with an auxiliary power unit.
In some embodiments, the auxiliary base 41 is rotatable relative to the auxiliary mount 22; releasing the traction rope to lower the auxiliary lifting hook 44 to the main base 31 and connecting the auxiliary lifting hook with the main base 31; tensioning the traction rope to lift the main base 31 to the upper part of the cabin 2; the rotation angle of the auxiliary base 41 is adjusted so that the main base 31 suspended on the auxiliary crane 4 rotates above the main mount 21; the position of the sliding block 46 is adjusted, and the auxiliary lifting hook 44 drives the main base 31 to move, so that the main base 31 moves to be right above the main mounting seat 21; the traction rope is released, the main base 31 is lowered to contact with the main mount 21, and the main base 31 is fixed to the main mount 21.
In some embodiments, a rotary bearing 411 is disposed at the bottom of the auxiliary base 41, the rotary bearing 411 is connected with the auxiliary mounting seat 22, a rotary motor 412 is disposed on the auxiliary base 41, and the auxiliary base 41 can rotate relative to the auxiliary mounting seat 22 under the drive of the rotary motor 412; the driving rotation motor 412 rotates the auxiliary base 41 so that the main base 31 suspended on the auxiliary crane 41 rotates above the main mount 31.
The hoisting process of other parts of the main crane 3, such as the main boom 32, the hydraulic cylinder 33, etc., is similar to the hoisting process of the main base 31, and will not be described in detail here.
In some embodiments, the main base 31 includes a detachably connected fixed seat 311, a swivel seat 312, and an adjustment seat 313; hoisting and mounting the fixing seat 311 to the main mounting seat 21 of the nacelle 2 by the auxiliary hoist 4; hoisting and mounting the rotary seat 312 to the fixed seat 311 by the auxiliary hoist 4; the adjustment base 313 is lifted by the auxiliary crane 4 and mounted to the swivel base 312, completing the mounting of the main base 31.
The hoisting process of each part of the main base 31 is similar to the hoisting process of the whole main base 31, and will not be described in detail here.
In a specific implementation, the tail end of the hydraulic cylinder 33 is connected with the main base 31, and the telescopic end of the hydraulic cylinder 33 is connected with the main suspension arm 32; lifting the hydraulic cylinder 33 by the auxiliary crane 4, and connecting the tail end of the hydraulic cylinder 33 with the main base 31; supporting the hydraulic cylinder 33 at a set angle by temporary support; lifting the main boom 32, connecting one end of the main boom 32 with the main base 31, and connecting the telescopic end of the hydraulic cylinder 33 with the middle part of the main boom 32; the temporary support is removed and the mounting of the hydraulic cylinder 33 and the main boom 32 is completed.
In some embodiments, the main boom 32 includes a detachably connected main body portion 321 and end portion 322,
the main body 321 is lifted by the auxiliary crane 4, and one end of the main body 321 away from the end 322 is connected with the main base 31; connecting the telescopic end of the hydraulic cylinder 33 with the middle part of the main body 321; the end portion 322 is lifted, and the end portion 322 is connected to the main body 321, thereby completing the attachment of the main boom 32.
Referring to fig. 8 and 10, in a specific implementation, the main boom 32 is fixedly connected with the main hook 34 through a hook lock 342, the main boom pulley 324 is installed at one end of the main boom 32, to which the main hook 34 is connected, the main hook 34 is provided with the main boom pulley 341, a plurality of first sliding grooves are circumferentially arranged on the outer wall of the main boom pulley 324, a second sliding groove matched with the first sliding grooves is circumferentially arranged on the outer wall of the main boom pulley 341, an auxiliary rope 39 is wound on the main boom pulley 324 and the main boom pulley 341 in advance, one end of the auxiliary rope 39 is fixed on the main boom pulley 341, and the other end of the auxiliary rope passes out to be a free end after being sequentially wound on the main boom pulley 341 and the main boom pulley 324 along the second sliding groove and the first sliding groove;
the free end of the auxiliary rope 39 passes through the pulley block 36 and then is connected with the steel wire rope 35; the pulley block 36 is a plurality of pulleys arranged on the main crane 3 and used for adjusting the trend of the steel wire rope 35; the free end of the auxiliary rope 39 is connected with the steel wire rope 35 after being sequentially wound around a plurality of pulleys; the hook lock 342 is removed so that the main boom 32 and the main hook 34 are connected by only the auxiliary rope 39 wound around the main boom pulley 324 and the main hook pulley 341; releasing the steel wire rope 35, lowering the main lifting hook 34, and winding the steel wire rope 35 along the auxiliary rope 39 along the second chute and the first chute around the main lifting hook pulley 341 and the main lifting arm pulley 324 in sequence until one end of the auxiliary rope 39 moves out of the main lifting arm pulley 324 and the main lifting hook pulley 341, and the other end is connected with the main lifting hook pulley 341; the auxiliary rope 39 is removed, and the wire rope 35 is connected with the main hook pulley 341 instead of the auxiliary rope 39, thereby completing the winding and connection of the wire rope 35.
Because wire rope 35 is heavy and hard, inconvenient manual work wears the rope at the high altitude, through the auxiliary rope 39 of wearing in advance, convenient and fast's realization wire rope 35 twines, improves the operating efficiency.
In a specific implementation, the main power unit is a winch or a winch, and the main power unit is arranged on the ground.
In a specific implementation, after the installation of the main crane 3 is completed, the rotary motor 412 is driven to drive the auxiliary crane 4 to rotate, so that the auxiliary boom 43 is far away from the main crane 3 and parallel to the nacelle 2, and interference of the auxiliary crane 4 on the main crane 3 is avoided, and the operation range of the main crane 3 is influenced.
In summary, according to the split type hoisting system for the tower crane of the wind generating set, provided by the embodiment of the invention, each part of the main crane and the auxiliary crane is gradually installed in the engine room, so that the hoisting of the tower crane is easily completed under the condition that large hoisting equipment is not needed;
further, the auxiliary crane component is lifted through the traction rope and the auxiliary power unit of the auxiliary crane, the auxiliary crane is installed without using other lifting equipment, the main crane component is lifted and installed through the auxiliary crane, and the auxiliary crane is convenient to install and use;
further, through twining auxiliary rope in advance between main davit pulley and the main lifting hook pulley, through the traction of auxiliary rope, convenient operation's realization wire rope's detours, improves the operating efficiency. Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the disclosure, even where only a single embodiment is described with respect to a particular feature. The characteristic examples provided in the present disclosure are intended to be illustrative, not limiting, unless stated differently. In practice, the features of one or more of the dependent claims may be combined with the features of the independent claims where technically possible, according to the actual needs, and the features from the respective independent claims may be combined in any appropriate way, not merely by the specific combinations enumerated in the claims.

Claims (10)

1. The split type hoisting system for the crane on the tower of the wind generating set comprises a tower barrel fixed on the ground and a cabin arranged at the top of the tower barrel, and is characterized by comprising a main crane and an auxiliary crane for hoisting the main crane, wherein the auxiliary crane comprises an auxiliary base, a hanging frame, an auxiliary hanging arm, a traction rope and an auxiliary power unit, and the auxiliary base, the hanging frame and the auxiliary hanging arm are detachably connected; the main crane comprises a main base, a main suspension arm, a hydraulic cylinder, a pulley block, a steel wire rope and a main power unit, wherein the main base, the main suspension arm and the hydraulic cylinder are detachably connected, the hydraulic cylinder is connected with the main base and the main suspension arm, one end of the main suspension arm is connected with the main base, the other end of the main suspension arm is provided with a main lifting hook, one end of the steel wire rope is connected with the main lifting hook, the other end of the steel wire rope bypasses the pulley block to be connected with the main power unit, and the main power unit is suitable for tensioning or releasing the steel wire rope to lift or put down the main lifting hook;
hoisting each part of the auxiliary crane to the cabin, and gradually installing the parts to an auxiliary installation seat of the cabin to finish the installation of the auxiliary crane; hoisting and mounting the main base to a main mounting seat of the nacelle by the auxiliary hoist; lifting and mounting the hydraulic cylinder to the main base by the auxiliary crane, lifting and mounting the main boom to the main base, and connecting the hydraulic cylinder and the main boom; and connecting the steel wire rope with the main lifting hook by bypassing the pulley block from the main power unit, and completing the installation of the main crane.
2. The split type hoisting system for a crane on a tower of a wind generating set according to claim 1, wherein the main boom is fixedly connected with the main hook through a hook lock, one end of the main boom, which is connected with the main hook, is provided with a main boom pulley, the main hook is provided with a main hook pulley, the outer wall of the main boom pulley is circumferentially provided with a plurality of first sliding grooves, the outer wall of the main boom pulley is circumferentially provided with a second sliding groove matched with the first sliding groove, the main boom pulley and the main hook pulley are pre-wound with an auxiliary rope, one end of the auxiliary rope is fixed on the main hook pulley, and the other end of the auxiliary rope sequentially winds the main hook pulley and the main boom pulley along the second sliding groove and the first sliding groove and then penetrates out to be a free end;
the free end of the auxiliary rope passes through the pulley block and then is connected with the steel wire rope; the lifting hook lock is disassembled, so that the main boom and the main lifting hook are connected only through the auxiliary rope wound on the main boom pulley and the main lifting hook pulley; releasing the steel wire rope, and releasing the main lifting hook, wherein the steel wire rope sequentially winds the main lifting hook pulley and the main lifting arm pulley along the second sliding groove and the first sliding groove along with the auxiliary rope until one end of the auxiliary rope moves out of the main lifting arm pulley and the main lifting hook pulley, and the other end of the auxiliary rope is connected with the main lifting hook pulley; and (3) dismantling the auxiliary rope, and connecting the steel wire rope with the main lifting hook pulley instead of the auxiliary rope to finish winding and connection of the steel wire rope.
3. The split type hoisting system for a tower crane of a wind generating set according to claim 1, wherein the hoisting frame is formed by a plurality of detachable brackets which are connected in sequence, the auxiliary hoisting arm is formed by a plurality of hoisting arm frames which are connected in sequence, an auxiliary hoisting hook is arranged on the auxiliary hoisting arm, the traction rope is connected with the auxiliary hoisting hook and the auxiliary power unit, and the auxiliary power unit is suitable for tightening or releasing the traction rope to hoist or put down the auxiliary hoisting hook;
erecting a temporary hanging frame on the engine room, and connecting the auxiliary hanging hook and the auxiliary power unit through the traction rope of the temporary hanging frame; releasing the traction rope, lifting the auxiliary base onto the cabin and installing the auxiliary base onto the auxiliary installation seat; hanging a plurality of brackets on the engine room one by one and installing the brackets on the auxiliary base to finish the installation of the hanging bracket; the plurality of boom frames are hung on the engine room one by one and are mounted on the hanging frame to complete the mounting of the auxiliary boom; the traction rope is detached from the temporary hanging frame, the auxiliary lifting hook is mounted on the auxiliary hanging arm, the traction rope connected with the auxiliary lifting hook is connected to the auxiliary power unit, and the auxiliary hanging machine is mounted; and removing the temporary hanging bracket.
4. A split hoisting system for a wind turbine tower crane according to claim 3, wherein the auxiliary boom is provided with a slide rail, the slide rail is provided with a slider, the slider is adapted to move along the slide rail, the slider is provided with an auxiliary boom pulley, and the auxiliary hook is provided with an auxiliary hook pulley; one end of the traction rope is connected with the auxiliary suspension arm pulley, and the other end of the traction rope bypasses the auxiliary suspension hook pulley and the auxiliary suspension arm pulley to be connected with the auxiliary power unit.
5. The split hoist system for a wind turbine tower crane of claim 4, wherein the auxiliary base is rotatable relative to the auxiliary mount; releasing the traction rope to lower the auxiliary lifting hook to the main base and connecting the auxiliary lifting hook with the main base; tensioning the traction rope and lifting the main base to the upper part of the cabin; adjusting the rotation angle of the auxiliary base so that the main base hung on the auxiliary crane rotates to the position above the main mounting seat; the position of the sliding block is adjusted, and the auxiliary lifting hook drives the main base to move, so that the main base moves to the position right above the main mounting seat; and releasing the traction rope, lowering the main base to be in contact with the main mounting seat, and fixing the main base and the main mounting seat.
6. The split hoisting system for a tower crane of a wind turbine generator system according to claim 5, wherein a swivel bearing is arranged at the bottom of the auxiliary base, the swivel bearing is connected with the auxiliary mounting seat, a rotating motor is arranged on the auxiliary base, and the auxiliary base can rotate relative to the auxiliary mounting seat under the drive of the rotating motor; the rotating motor is driven to drive the auxiliary base to rotate, so that the main base hung on the auxiliary crane rotates to the upper side of the main mounting seat.
7. The split hoist system for a wind turbine tower crane of claim 1, characterized in that the main foundation includes a detachably connected fixed seat, a swivel seat, and an adjustment seat;
hoisting and installing the fixed seat to a main installation seat of the cabin through the auxiliary crane; hoisting and installing the rotating seat to the fixed seat through the auxiliary crane; and lifting the adjusting seat by the auxiliary crane and installing the adjusting seat to the rotating seat to finish the installation of the main base.
8. The split hoisting system for a wind turbine tower crane according to claim 1, wherein the tail end of the hydraulic cylinder is connected to the main base and the telescopic end of the hydraulic cylinder is connected to the main boom; hoisting the hydraulic cylinder through the auxiliary crane, and connecting the tail end of the hydraulic cylinder with the main base; supporting the hydraulic cylinder at a set angle through temporary support; lifting the main boom, connecting one end of the main boom with the main base, and connecting the telescopic end of the hydraulic cylinder with the middle part of the main boom; and removing the temporary support to finish the installation of the hydraulic cylinder and the main boom.
9. The split hoist system for a wind turbine tower crane of claim 8, characterized in that the main boom includes detachably connected main body and end portions; hoisting the main body part through the auxiliary crane, and connecting one end of the main body part far away from the end part with the main base; connecting the telescopic end of the hydraulic cylinder with the middle part of the main body part; and hoisting the end part, and connecting the end part with the main body part to finish the installation of the main boom.
10. The split hoist system for a wind turbine tower crane of claim 6, wherein after installation of the main crane is completed, the rotating electrical machine is driven to rotate the auxiliary crane such that the auxiliary boom is remote from the main crane and parallel to the nacelle.
CN202311266726.5A 2023-09-28 2023-09-28 Split type hoisting system for crane on tower of wind generating set Withdrawn CN117023414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311266726.5A CN117023414A (en) 2023-09-28 2023-09-28 Split type hoisting system for crane on tower of wind generating set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311266726.5A CN117023414A (en) 2023-09-28 2023-09-28 Split type hoisting system for crane on tower of wind generating set

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CN117023414A true CN117023414A (en) 2023-11-10

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Country Link
CN (1) CN117023414A (en)

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Application publication date: 20231110