CN-121990476-A - Self-climbing hoisting system and hoisting method thereof

CN121990476ACN 121990476 ACN121990476 ACN 121990476ACN-121990476-A

Abstract

The invention relates to the technical field of fan operation and maintenance, and provides a self-climbing hoisting system and a hoisting method thereof, wherein a self-climbing crane in the system is stored in a container in an initial state, and a lifting hook module is arranged at the end part of the self-climbing crane; the two main hoisting mechanisms are arranged in the container side by side, one main hoisting mechanism is led out of a main steel wire rope, the main steel wire rope is wound on the self-climbing crane and connected with the lifting hook module, the tail end of the main steel wire rope returns to be connected with the other main hoisting mechanism, the auxiliary hoisting mechanism is arranged in the container, the auxiliary steel wire rope is led out of the auxiliary hoisting mechanism, extends out of the container and extends to the cabin of the wind driven generator and winds around the cabin of the wind driven generator, and is connected with the self-climbing crane to drive the self-climbing crane to realize self-climbing or descending. The invention can realize the high-efficiency lifting of heavy accessories by utilizing the high-power auxiliary hoisting mechanism positioned on the ground, and can reduce the installation burden and the safety risk of high-altitude operators.

Inventors

WANG FEI
Yong Suilin
HUANG ZHONGTAO
SONG RANRAN
REN YAFEI
YU QIFU
ZHANG BINHUI
XI JIANBO
WANG LI
DAI BAOQIONG
LIU YAFENG
WEI YANAN
JIANG YINGWU

Assignees

中际联合(北京)装备制造有限公司

Dates

Publication Date: 20260508
Application Date: 20260130

Claims (10)

1. A self-climbing hoist system, comprising: A container; A self-climbing crane which is accommodated in the container in an initial state, wherein a hook module is arranged at the end part of the self-climbing crane; the two main hoisting mechanisms are arranged at one end of the container side by side, one main hoisting mechanism is led out of a main steel wire rope, and the main steel wire rope is wound on the self-climbing crane and is connected with the lifting hook module, and then the tail end of the main steel wire rope returns to be connected with the other main hoisting mechanism; The auxiliary hoisting mechanism is arranged in the container, an auxiliary steel wire rope is led out of the auxiliary hoisting mechanism, extends out of the container, bypasses a cabin of the wind driven generator, is connected with the self-climbing crane and is used for driving the self-climbing crane to realize self-climbing or descending.
2. The self-climbing hoist system of claim 1, further comprising: the cabin top crane is arranged on a cabin of the wind driven generator, and a fixed pulley is arranged at the end part of the cabin top crane; the auxiliary steel wire rope is connected with a lifting appliance after passing through the fixed pulley, and the lifting appliance is used for lifting a crane support, so that the crane support is pre-installed on a cabin of the wind driven generator and used for bearing the self-climbing crane which completes self-climbing.
3. The self-climbing hoist system of claim 1, further comprising: the two rope guiding mechanisms are respectively arranged corresponding to the two main hoisting mechanisms, and each rope guiding mechanism comprises: the guide rope and slide rail bracket is arranged on the container; The rope guiding pulley is arranged on the rope guiding sliding rail bracket and can move along the rope guiding sliding rail bracket; The rope guiding driving unit is arranged on the container and used for driving the rope guiding pulley to move along the rope guiding sliding rail bracket so as to dynamically adjust rope inlet angles of the main steel wire ropes entering the main hoisting mechanisms; and two compensation mechanisms are respectively arranged on the container corresponding to the two rope guiding mechanisms, and each compensation mechanism is linked with the corresponding rope guiding mechanism and is used for compensating the effective length change of the main steel wire rope caused by the movement of the rope guiding mechanism.
4. A self-climbing hoist system according to claim 3, wherein each of the compensating mechanisms comprises: the compensation sliding rail bracket is arranged on the container; The compensation pulley is arranged on the compensation sliding rail bracket and can move along the compensation sliding rail bracket; the compensation driving unit is used for driving the compensation pulley to move along the compensation sliding rail bracket; The main steel wire rope winds the rope guiding pulley and the compensating pulley, and the moving direction of the compensating pulley is opposite to the moving direction of the corresponding rope guiding pulley.
5. The self-climbing hoist system of claim 3, further comprising: the two tensioning mechanisms are arranged corresponding to the two main hoisting mechanisms respectively, and each tensioning mechanism comprises: The tensioning slide rail bracket is arranged on the container; The counterweight mechanism is arranged on the tensioning slide rail bracket and can move along the tensioning slide rail bracket; the tensioning pulley is arranged on the counterweight mechanism and is abutted with the main steel wire rope; After the main steel wire rope is led out from the main hoisting mechanism, the main steel wire rope sequentially winds the corresponding rope guiding pulley, the compensating pulley of the compensating mechanism and the tensioning pulley; the counterweight mechanism drives the tensioning pulley to move along the tensioning slide rail bracket under the action of self gravity and is used for applying tensioning force to the main steel wire rope.
6. A self-climbing hoist system according to claim 3, further comprising two exit guide mechanisms located between the geometric centre and the centre of gravity of the container, each exit guide mechanism comprising: The pulley bracket is arranged on the container; the main outlet pulley is arranged on the pulley bracket and is used for leading the main steel wire rope out of the container; The two main anti-drop pulleys are symmetrically arranged on the pulley support and are positioned on two sides of the main outlet pulley, and the axis of the main anti-drop pulleys is mutually perpendicular to the axis of the main outlet pulley.
7. The self-climbing hoist system of claim 6, further comprising an outlet pulley assembly comprising: a mounting frame; The diverting pulley is arranged at one end of the mounting frame and used for guiding the auxiliary steel wire rope to enter the outlet pulley assembly; The auxiliary outlet pulley is arranged at the other end of the mounting frame and used for guiding the auxiliary steel wire rope to leave the outlet pulley assembly; the pinch roller mechanism is arranged on the mounting frame and is positioned on the path of the auxiliary steel wire rope between the steering pulley and the auxiliary outlet pulley; The damping wheel mechanism is arranged on the mounting frame and is matched with the pinch roller mechanism; The pinch roller mechanism is configured to apply pressure to the secondary wire rope to compress the secondary wire rope against the damping wheel mechanism, and the damping wheel mechanism is configured to provide a damping force to rotation of the secondary wire rope to apply a tensioning force to the secondary wire rope when it is slackened.
8. The self-climbing hoist system of claim 7, wherein the pulley bracket and the mount are each pivotally connected to a respective support bracket; wherein, a hollow cavity is arranged in the pivot, The arrangement path of the main steel wire rope penetrates through the rotation center of the pulley bracket and is used for driving the pulley bracket to swing; The auxiliary steel wire rope is arranged in the rotating center of the mounting frame in a penetrating mode and used for driving the mounting frame to swing.
9. The self-climbing hoisting system according to any one of claims 1 to 8, wherein the container is provided near both ends with two first and second guide rails, respectively, each for guiding the self-climbing crane away from or back to the container; And a plurality of auxiliary guide pulleys are arranged on the two main hoisting mechanisms.
10. A hoisting method based on the self-climbing hoisting system as claimed in any one of claims 1 to 9, characterized by comprising the steps of: Splitting a cabin top crane into a plurality of parts with the weight not exceeding 25Kg, manually carrying and installing the parts on a cabin of a wind driven generator, and installing a guide device on the cabin top crane; The auxiliary hoisting mechanism is controlled to drive the auxiliary steel wire rope to move, the crane support is lifted to the cabin of the wind driven generator, and the installation is completed; Under the condition that the auxiliary steel wire rope is connected with the self-climbing crane, controlling an auxiliary hoisting mechanism to tighten the auxiliary steel wire rope, and driving the self-climbing crane to climb upwards along a tower drum; And in the climbing process of the self-climbing crane, synchronously controlling the two main hoisting mechanisms to pay out ropes outwards until the self-climbing crane is in butt joint fixation with a crane support on a cabin of the wind driven generator.

Description

Self-climbing hoisting system and hoisting method thereof Technical Field The invention relates to the technical field of fan operation and maintenance, in particular to a self-climbing hoisting system and a hoisting method thereof. Background Wind power generation serves as a clean renewable energy source. In order to improve the power generation efficiency and reduce the electricity cost, the wind turbine generator system is developing towards the directions of high power and large size, the capacity of a single machine is continuously increased, the height of a hub is continuously improved, and new challenges are brought to operation and maintenance and replacement of large components (such as a gear box, a generator, blades and the like) in the whole life cycle. Although the traditional crawler crane can finish the hoisting task, the approach, assembly and transfer costs are high, the operation period is long, and the application of the crawler crane is greatly limited especially for wind fields of complex terrains such as mountain areas, seas and the like. In order to solve the above problems, a single-winch self-lifting crane is developed by those skilled in the art, and after the crane climbs to a designated position, an independent electric hoist is additionally installed outside the nacelle or on the crane, and the hoisting operation of the parts is performed by using the electric hoist. In practice, the single-winch self-lifting crane has the following technical defects when being matched with an electric hoist: Firstly, the electric hoist for hoisting is large in size and weight, and is manually mounted or dismounted in a high altitude of hundreds of meters, so that the electric hoist is difficult to operate, high in labor intensity and potential in threat to the safety of operators. Secondly, the top of the electric hoist cabin is limited in power taking, part of the cabin has no available power supply, and a storage battery needs to be taken from the ground or carried to the cabin top. The cable is pulled to the cabin top on the ground, so that the lifting efficiency is influenced due to the fact that the cable is too long and is easy to break, the storage battery is too heavy to carry, and the power supply is limited and is difficult to continuously lift. Furthermore, as the height of the tower drum of the fan is developed to 200 meters or more, the length and the lifting height of the main steel wire rope of the conventional electric hoist cannot meet the use requirements, and the application range is limited. Disclosure of Invention The invention provides a self-climbing hoisting system and a hoisting method thereof, which are used for solving the technical defects in the prior art, and not only can realize the efficient hoisting of heavy accessories by utilizing a high-power auxiliary hoisting mechanism positioned on the ground, but also can reduce the installation burden and the safety risk of high-altitude operators. A first aspect of the invention provides a self-climbing lifting system comprising: A container; A self-climbing crane which is accommodated in the container in an initial state, wherein a hook module is arranged at the end part of the self-climbing crane; the two main hoisting mechanisms are arranged in the container side by side, one main hoisting mechanism is led out of a main steel wire rope, and the main steel wire rope is wound on the self-climbing crane and is connected with the lifting hook module, and then the tail end of the main steel wire rope returns to be connected with the other main hoisting mechanism; The auxiliary hoisting mechanism is arranged in the container, an auxiliary steel wire rope is led out of the auxiliary hoisting mechanism, extends out of the container, extends towards the cabin of the wind driven generator, bypasses the cabin of the wind driven generator, is connected with the self-climbing crane and is used for driving the self-climbing crane to realize self-climbing or descending. According to the self-climbing hoisting system provided by the invention, the auxiliary hoisting mechanism is additionally arranged, so that the auxiliary steel wire rope led out by the auxiliary hoisting mechanism is matched with a part (such as a crane support) on the engine room to form a hoisting system, and the hoisting system is used for pulling the self-climbing crane from the ground container to a preset working position of the engine room or safely lowering the self-climbing crane from the engine room to the ground. The large ground crane which is expensive to rent and transport is not needed, the operation and maintenance cost of the fan is reduced, and the problems of low hoisting weight, limited hoisting height and limited power taking of the engine room of the electric hoist in the prior art are solved. By keeping the heavy power unit (auxiliary hoisting mechanism) in the ground container, only an unpowered structural member (overhead crane) is require