CN-224214295-U - Gear box replacing device

CN224214295UCN 224214295 UCN224214295 UCN 224214295UCN-224214295-U

Abstract

The utility model relates to the technical field of fan operation and maintenance, and provides a gear box replacing device, wherein a supporting component is used for being installed in a cabin of a fan; the movable mechanism is movably arranged on the supporting component and is suitable for moving along different first directions and second directions, a supporting frame in the hoisting mechanism is fixedly arranged on the supporting component, a plurality of anchoring points are arranged on one side of the supporting frame, a plurality of guiding positions are arranged on the other side of the supporting frame opposite to the one side of the supporting frame, a plurality of pulley components are fixedly arranged on the movable mechanism, a plurality of hoisting tool components are arranged in one-to-one correspondence with the pulley components, a plurality of driving components are arranged at preset mounting positions in the fan, and a traction piece led out by each driving component sequentially winds the corresponding guiding positions, the corresponding pulley components and the corresponding hoisting tool components and is fixed to the corresponding anchoring points. The utility model can replace large-scale hoisting equipment to replace a gear box in a fan cabin, saves the renting cost of a large-tonnage crane, effectively reduces the operation and maintenance cost of the fan and improves the replacement efficiency of the gear box.

Inventors

WANG LI
GUO JUNTAO
ZHANG BINHUI
DUAN XIAOZHUANG
XI JIANBO
SONG RANRAN
Yong Suilin

Assignees

中际联合(北京)装备制造有限公司

Dates

Publication Date: 20260508
Application Date: 20250620

Claims (10)

1. A gearbox replacement device, comprising: a support assembly for mounting into a nacelle of a wind turbine; the moving mechanism is movably arranged on the supporting component and is suitable for moving along a first direction and a second direction, wherein the first direction and the second direction are different; hoisting mechanism includes: The support frame is fixedly arranged on the support assembly, one side of the support frame is provided with a plurality of anchoring points, and the other side of the support frame opposite to the one side is provided with a plurality of guiding positions; The pulley assemblies are fixedly arranged on the moving mechanism; The lifting appliance assemblies are positioned below the pulley assemblies and are arranged in one-to-one correspondence with the pulley assemblies; The driving components are arranged at preset mounting positions in the fan, and traction pieces led out by each driving component are sequentially wound on corresponding guide positions, corresponding pulley components and corresponding lifting appliance components and fixed to corresponding anchor points.
2. The gearbox replacement device of claim 1 wherein each of the pulley assemblies comprises at least two fixed pulleys, the at least two fixed pulleys being coaxially disposed and the hubs of each fixed pulley being equal in size; Wherein, the traction piece guided by the guiding position is wound on one of at least two fixed pulleys, the lifting appliance component and the other of at least two fixed pulleys in sequence and is fixed to corresponding anchoring points.
3. The gearbox replacement device of claim 2, wherein each of the spreader assemblies comprises: The lifting appliance shell is internally provided with an accommodating cavity; The movable pulley is rotatably arranged in the accommodating cavity, and the size of a hub of the movable pulley is equal to that of a hub of the fixed pulley; the lifting piece is arranged on the lifting appliance shell; wherein, the traction piece guided by the guiding position is wound on one of at least two fixed pulleys, the movable pulley and the other of at least two fixed pulleys in sequence and is fixed to corresponding anchoring points.
4. The gearbox replacement device of claim 1, wherein each of the guide locations is provided with a first guide pulley, a second guide pulley, and a third guide pulley; The first guide pulley and the second guide pulley are arranged on the supporting component at intervals, the first guide pulley and the second guide pulley are arranged in a staggered mode in the vertical direction, and the axes of the first guide pulley and the second guide pulley are parallel; the third guide pulley is arranged on the support frame and corresponds to the position of the second guide pulley; The traction piece led out by the driving assembly sequentially winds the first guide pulley, the second guide pulley, the third guide pulley, the corresponding pulley assembly and the lifting appliance assembly, and is fixed to the corresponding anchoring point.
5. Gearbox replacement device according to any of claims 1 to 4, wherein the movement mechanism comprises: The first moving assembly is movably arranged on the supporting assembly and is suitable for moving along a first direction; The second moving assembly is movably arranged on the first moving assembly and is suitable for moving along a second direction, and the first direction and the second direction are perpendicular to each other; The pulley assemblies are fixedly arranged on the second moving assembly respectively.
6. The gearbox replacement device of claim 5 wherein the first moving assembly comprises: The two first movable carriers are arranged at intervals and are connected through a first connecting beam, at least one first guide piece is arranged at the position, close to two ends, of each first movable carrier, and each first guide piece is in movable fit with the supporting component; The first driving component is arranged on the supporting component, connected with at least one of the two first moving carriers and used for driving the two first moving carriers to perform linear motion along a first direction.
7. The gearbox replacement device of claim 6 wherein the second movement assembly comprises: The two second movable carriers are arranged at intervals and are connected through a second connecting beam, at least one second guide piece is arranged at the position, close to two ends, of each second movable carrier, and each second guide piece is movably matched with the first movable carrier; the second driving component is arranged on the first moving carrier, connected with at least one of the two second moving carriers and used for driving the two second moving carriers to perform linear motion along a second direction.
8. The gearbox replacement device of claim 7, wherein each first guide comprises a roller or a slider, and wherein a surface of the support assembly is provided with a sliding rail that is in movable engagement with the roller or the slider; and/or the number of the groups of groups, Each second guide piece comprises a roller or a sliding block, and a sliding rail which is movably matched with the roller or the sliding block is arranged on the surface of the first movable carrier.
9. The gearbox replacement device of any one of claims 1 to 4, wherein the support assembly comprises: A plurality of foundation columns for mounting into a nacelle of a wind turbine; Rigid frame structure includes: Each auxiliary beam is erected on the two foundation upright posts; The support columns are arranged in a one-to-one correspondence manner with the positions of the foundation columns, and each support column is connected to one side of the auxiliary cross beam, which is away from the foundation column; Each main beam is erected on the two supporting upright posts; The main longitudinal beams are arranged between the two main cross beams at intervals and are respectively and vertically connected with each main cross beam; one end of the stay bar is movably connected with the main beam, and the other end of the stay bar is connected with the support upright post; wherein, the mobile mechanism is movably arranged on the surface of the main beam.
10. The gearbox replacement device of claim 9, wherein the support bracket comprises: the plurality of additional upright posts are respectively arranged on the main longitudinal beam; Two additional beams arranged oppositely, wherein each additional beam is arranged on two additional upright posts arranged at intervals along the transverse direction; Two additional longitudinal beams are oppositely arranged, and each additional longitudinal beam is arranged on two additional upright posts which are longitudinally arranged at intervals; Wherein, a plurality of anchor points are located on one of the additional stringers, and part of the guiding position is located on another of the additional stringers.

Description

Gear box replacing device Technical Field The utility model relates to the technical field of fan operation and maintenance, in particular to a gear box replacing device. Background The gear box of the fan is a core transmission component in a wind generating set (simply called a fan), and has the main functions of accelerating the low-speed rotational kinetic energy captured by the wind wheel and transmitting the same to the generator so that the same can reach the rotating speed required by power generation, and is a power bridge for connecting the wind wheel and the generator. The performance of the gearbox directly affects the power generation efficiency and reliability of the wind turbine, and therefore, in the wind power field, the replacement work of the gearbox is an important part in the maintenance work of the wind turbine. At present, the existing gear box is replaced by mostly lifting the fault gear box to a replacement place by a crane, then lifting a new gear box to a cabin to complete replacement, and the crane is required to be driven to the vicinity of the cabin mainly depending on an external crane. Due to factors such as limited space around a cabin (such as mountains, wild fields, beaches and islands), weather (irregular direction-changing and load-changing wind power action and strong gust impact), ground bearing (a crane needs to level the ground), long preparation time, high cost (crane renting and operating personnel cost) and the like, the conventional gearbox replacement mode fan has high operation and maintenance cost, and under the offshore environment, a large-tonnage crane has insufficient platform bearing and is limited in use. Disclosure of utility model The utility model provides a gear box replacing device which is used for solving the technical defects in the prior art, replacing a gear box in a fan cabin by large hoisting equipment, saving the renting cost of a large-tonnage crane, effectively reducing the operation and maintenance cost of the fan and improving the replacing efficiency of the gear box. The utility model provides a gear box replacing device, comprising: a support assembly for mounting into a nacelle of a wind turbine; the moving mechanism is movably arranged on the supporting component and is suitable for moving along a first direction and a second direction, wherein the first direction and the second direction are different; hoisting mechanism includes: The support frame is fixedly arranged on the support assembly, one side of the support frame is provided with a plurality of anchoring points, and the other side of the support frame opposite to the one side is provided with a plurality of guiding positions; The pulley assemblies are fixedly arranged on the moving mechanism; The lifting appliance assemblies are positioned below the pulley assemblies and are arranged in one-to-one correspondence with the pulley assemblies; The driving components are arranged at preset mounting positions in the fan, and traction pieces led out by each driving component are sequentially wound on corresponding guide positions, corresponding pulley components and corresponding lifting appliance components and fixed to corresponding anchor points. According to the gear box replacing device provided by the utility model, each pulley assembly comprises at least two fixed pulleys, the at least two fixed pulleys are coaxially arranged, and the wheel hubs of the fixed pulleys are equal in size; Wherein, the traction piece guided by the guiding position is wound on one of at least two fixed pulleys, the lifting appliance component and the other of at least two fixed pulleys in sequence and is fixed to corresponding anchoring points. According to the present utility model there is provided a gearbox replacement device, each of said spreader assemblies comprising: The lifting appliance shell is internally provided with an accommodating cavity; The movable pulley is rotatably arranged in the accommodating cavity, and the size of a hub of the movable pulley is equal to that of a hub of the fixed pulley; the lifting piece is arranged on the lifting appliance shell; wherein, the traction piece guided by the guiding position is wound on one of at least two fixed pulleys, the movable pulley and the other of at least two fixed pulleys in sequence and is fixed to corresponding anchoring points. According to the gear box replacing device provided by the utility model, each guide position is provided with a first guide pulley, a second guide pulley and a third guide pulley; The first guide pulley and the second guide pulley are arranged on the supporting component at intervals, the first guide pulley and the second guide pulley are arranged in a staggered mode in the vertical direction, and the axes of the first guide pulley and the second guide pulley are parallel; the third guide pulley is arranged on the support frame and corresponds to the position of the second guide pulley; The traction pie