Search

CN-122014512-A - Fan tower climbing power assisting system and steel wire rope anti-swing device

CN122014512ACN 122014512 ACN122014512 ACN 122014512ACN-122014512-A

Abstract

The invention discloses a fan tower climbing power assisting system and a steel wire rope anti-swing device, and belongs to the technical field of wind power generation. The device comprises a mounting bracket, a left guide wheel arm, a right guide wheel arm which are symmetrically hinged on the bracket, and a V-shaped or U-shaped nylon guide wheel which is arranged at the front end of the guide wheel arm, and an elastic reset mechanism. The elastic reset mechanism is connected with the two guide wheel arms and provides inward elastic biasing force. When the steel wire rope moves, the steel wire rope overcomes the elasticity to jack the guide wheel, and the guide wheel rotates and releases the clamping force, so that smooth passing is ensured. The intelligent self-adaptive anti-swing device realizes the intelligent self-adaptive effects of smooth moving and static anti-swing, solves the problems of large abrasion and poor anti-swing effect of the traditional fixed guide ring, and improves the safety of a climbing system and the service life of equipment.

Inventors

  • ZHONG WENLONG

Assignees

  • 国华能源投资有限公司
  • 国华新能源(双辽)有限公司

Dates

Publication Date
20260512
Application Date
20260224

Claims (10)

  1. 1. The utility model provides a wire rope anti-swing device, its characterized in that, the device is used for fan tower section of thick bamboo climbing helping hand system, includes: the mounting bracket (1) is arranged on the inner structure of the fan tower barrel; The guide assembly comprises a left guide wheel arm (2) and a right guide wheel arm (3) which are symmetrically arranged on two sides of the mounting bracket (1), and one ends of the left guide wheel arm (2) and the right guide wheel arm (3) are respectively connected with the mounting bracket (1) in a rotating way through a pin shaft (4); The clamping unit comprises a left guide wheel (5) and a right guide wheel (6), wherein the left guide wheel (5) and the right guide wheel (6) are respectively arranged at the free end of the left guide wheel arm (2), and the left guide wheel (5) and the right guide wheel (6) are oppositely arranged to form a guide channel for a steel wire rope (9) to pass through; The elastic reset mechanism (7) is connected between the left guide wheel arm (2) and the right guide wheel arm (3); And an elastic biasing force is applied by the elastic reset mechanism (7), so that the left guide wheel (5) and the right guide wheel (6) are inwards closed to clamp the steel wire rope (9) in a static state of the steel wire rope (9), and are outwards opened to release the steel wire rope (9) against the elastic biasing force when the steel wire rope (9) moves axially or is extruded by external force.
  2. 2. The steel wire rope anti-swing device according to claim 1, wherein grooves are formed in the outer peripheral surfaces of the left guide wheel (5) and the right guide wheel (6), and the grooves of the left guide wheel (5) and the grooves of the right guide wheel (6) jointly enclose the guide channel with a V-shaped or U-shaped section so as to limit the steel wire rope (9) in the circumferential direction in a clamping state.
  3. 3. The steel wire rope anti-swing device according to claim 2, wherein the elastic reset mechanism (7) is an extension spring, two ends of the extension spring are respectively connected to the middle parts of the left guide wheel arm (2) and the right guide wheel arm (3) in a hanging mode, and the two guide wheel arms are driven to rotate around the pin shaft (4) in opposite directions through pulling force.
  4. 4. The steel wire rope anti-swing device according to claim 1, wherein the elastic reset mechanism (7) is a torsion spring, the torsion spring is sleeved on the pin shaft (4), one end of the torsion spring is abutted against the mounting bracket (1), and the other end of the torsion spring is abutted against the corresponding guide wheel arm so as to drive the guide wheel arm to rotate inwards.
  5. 5. The steel wire rope anti-swing device according to claim 1, wherein the left guide wheel (5) and the right guide wheel (6) are made of nylon materials or polyurethane materials, and the left guide wheel (5) and the right guide wheel (6) are rotatably mounted at the front ends of corresponding guide wheel arms through bearings.
  6. 6. The steel wire rope anti-swing device according to claim 1, wherein a limiting block is arranged on the mounting bracket (1), and the limiting block is positioned on a rotating path of the left guide wheel arm (2) and the right guide wheel arm (3) and used for limiting the minimum distance between the left guide wheel (5) and the right guide wheel (6) which are close inwards.
  7. 7. The steel wire rope anti-swing device according to claim 1, wherein the mounting bracket (1) comprises a base and an adjusting plate, a waist-shaped hole is formed in the base, and the device is fixed to a Yu Datong platform through the waist-shaped hole by a bolt assembly so as to adjust the horizontal position of the device relative to the steel wire rope (9).
  8. 8. The steel wire rope anti-swing device according to claim 1, wherein the left guide wheel arm (2) and the right guide wheel arm (3) are of an L-shaped structure, the pin shaft (4) is located at a corner of the L-shaped structure, the left guide wheel (5) and the right guide wheel (6) are mounted at one end of the L-shaped structure, and the elastic reset mechanism (7) is connected to the other end of the L-shaped structure.
  9. 9. The steel wire rope anti-sway device according to any one of claims 1 to 8, characterized in that the pretightening force of the elastic return mechanism (7) is set such that the clamping force applied to the steel wire rope (9) by the left guide wheel (5) and the right guide wheel (6) is greater than the lateral swaying force of the steel wire rope (9) due to self weight or external force when the steel wire rope (9) is in a stationary state; When the steel wire rope (9) moves up and down along with external force, the interaction force between the steel wire rope (9) and the two guide wheels can overcome the pretightening force to enable the two guide wheel arms to expand outwards.
  10. 10. A fan tower climbing helping hand system, includes wire rope (9) and tower, characterized in that, the system still includes a plurality of sets of wire rope pendulum prevention device according to any one of claims 1 to 9, wire rope self-adaptation pendulum prevention device is followed the direction interval distribution of height of tower is fixed in tower inner wall or on the platform, wire rope (9) pass each set of wire rope pendulum prevention device's guide way in proper order.

Description

Fan tower climbing power assisting system and steel wire rope anti-swing device Technical Field The invention relates to the technical field of wind power generation, in particular to a fan tower climbing power assisting system and a steel wire rope anti-swing device. Background In modern large wind power plants, the tower is the core structure supporting the nacelle and the impeller of the wind turbine, which is typically tens of meters or even hundreds of meters in height. In order to ensure the normal operation of the fan, operation and maintenance personnel need to regularly climb the crawling ladder inside the tower cylinder to enter the engine room for maintenance, overhaul and other works. In order to reduce the physical effort of personnel and to increase safety, climbing assistance systems, such as climbing-free or climbing-aid systems, are often provided in the tower, which systems rely mainly on wire ropes as traction medium or auxiliary guide means. However, in practical application, because the tower is huge in height, the long-distance steel wire rope suspended in the tower is extremely susceptible to the factors such as tower vibration caused by external wind load, mechanical vibration during unit operation, and shaking of the steel wire rope driven by up-and-down operation of the booster under the condition of no constraint, so that the steel wire rope can swing severely. Existing solutions typically employ simple fixed guide rings or rigid brackets mounted to the tower platform or inner wall through which the wire rope passes. In addition, rigid friction exists between the steel wire rope and the metal or hard plastic guide ring, and especially when the steel wire rope swings to contact the edge, long-term cutting friction can seriously damage the strands on the surface of the steel wire rope, so that the service life of the steel wire rope is shortened, and even the risk of rope breakage is caused. And the large amplitude of the oscillations may cause the wire rope to wind around power cables, control cables or lighting equipment within the tower, causing equipment damage or electrical shorts. In view of the foregoing, a novel anti-swing device for a steel wire rope is needed to solve the technical problems of poor anti-swing effect and large abrasion of the existing fixed guiding device. Disclosure of Invention In view of the above, the application provides a fan tower climbing assistance system and a steel wire rope anti-swing device. The main aim at solves the technical problem that current fixed guider prevents that the pendulum effect is poor, and wearing and tearing are big. According to the first aspect of the invention, a steel wire rope swing preventing device is provided, the device is used for a fan tower climbing assisting system and comprises a mounting bracket, a guiding assembly, a clamping unit and an elastic resetting mechanism, wherein the mounting bracket is arranged on the inner structure of the fan tower, the guiding assembly comprises a left guide wheel arm and a right guide wheel arm which are symmetrically arranged on two sides of the mounting bracket, one ends of the left guide wheel arm and the right guide wheel arm are respectively connected with the mounting bracket in a rotating mode through a pin shaft, the clamping unit comprises a left guide wheel and a right guide wheel which are respectively arranged on the free end of the left guide wheel arm, the left guide wheel and the right guide wheel are oppositely arranged to form a guiding channel for a steel wire rope to pass through, the elastic resetting mechanism is connected between the left guide wheel arm and the right guide wheel arm or between the guide wheel arm and the mounting bracket, and the elastic resetting mechanism applies elastic biasing force to enable the left guide wheel and the right guide wheel to be inwards closed to clamp the steel wire rope in a static state of the steel wire rope, and the steel wire rope is outwards released against the elastic biasing force when the steel wire rope is axially moved or extruded by external force. Further, grooves are formed in the outer peripheral surfaces of the left guide wheel and the right guide wheel, and the grooves of the left guide wheel and the grooves of the right guide wheel jointly enclose the guide channel with a V-shaped or U-shaped section so as to limit the steel wire rope in the circumferential direction in a clamping state. Further, the elastic reset mechanism is an extension spring, two ends of the extension spring are respectively hung at the middle positions of the left guide wheel arm and the right guide wheel arm, and the two guide wheel arms are driven to rotate around the pin shaft in the opposite directions through pulling force. Further, the elastic reset mechanism is a torsion spring, the torsion spring is sleeved on the pin shaft, one end of the torsion spring is abutted to the mounting bracket, and the other end of the tors