Wind power maintenance pay-off rack
The design of the support frame and ratchet mechanism solves the problem of the wind power maintenance cable laying frame being prone to tipping over in strong winds, thus achieving stable locking of the cable laying frame and safety for high-altitude operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-07
AI Technical Summary
Wind power maintenance cable-laying frames are prone to tipping over or becoming unstable when working at heights in strong winds.
The design employs a support frame and ratchet mechanism. The wire unwinding drum is synchronized through a fixed chain assembly and a drive assembly. The end of the metal chain is fastened to the wind turbine generator frame. Combined with the structural design of the support sleeve and chassis, the wire unwinding frame is securely locked to prevent retraction after unwinding.
In windy weather, the cable-laying frame can stand firmly to prevent it from tipping over, ensuring the safety and stability of high-altitude operations.
Smart Images
Figure CN224091336U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind power maintenance technology, and more specifically, to a wind power maintenance cable laying frame. Background Technology
[0002] Wind power maintenance refers to the process of regularly inspecting, maintaining, and repairing wind turbine generator sets and related equipment. During maintenance, cable laying racks are used to lay and manage cables. Horizontal cable laying racks are one type, which generally include a cable laying drum fixedly installed on a base and a turntable rotatably connected to the base. When working, the cable reel is placed over the cable laying drum. When the cable reel is large and heavy, it is easy to become top-heavy, tip over, or become unstable.
[0003] Since wind power maintenance is carried out at high altitudes, horizontal cable laying frames are easily affected by the wind, causing them to tilt or become unstable. Therefore, we propose a wind power maintenance cable laying frame. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a wind power maintenance cable laying frame to solve the technical problem that the current wind power maintenance cable laying frame is prone to tipping over or is unstable when working at high altitudes in strong winds.
[0005] To solve the above technical problems, this utility model provides the following technical solution: a wind power maintenance cable laying frame, including a horizontal cable laying frame, a support frame non-rotatingly fitted on the horizontal cable laying frame, a fixed chain assembly installed on the support frame, the power input end of the fixed chain assembly being connected to a drive assembly through a ratchet mechanism, and a support assembly being externally connected to the ratchet mechanism;
[0006] The fixed chain assembly includes two sets of rollers, each rotatably mounted on a support frame. A metal chain is wound around the outside of the rollers, and a buckle is installed at the end of the metal chain.
[0007] Preferably, the horizontal wire feeding frame includes a chassis, a wire feeding drum is fixedly connected to the center of the chassis, a turntable is rotatably connected to the outside of the wire feeding drum, and a number of rollers are installed in a circumferentially equidistant array at the bottom of the turntable and are rotatably connected to the top of the chassis through the rollers.
[0008] Preferably, the support frame includes a non-rotating support sleeve fitted at the diagonal corners of the chassis. There are two sets of the support sleeves, and a top plate is fixedly connected to the top of the top plate. A top shell is fixedly connected to the top of the top plate, and a rotating hole is opened at the center of the top plate.
[0009] Preferably, the chassis is square with chamfered corners, and the support sleeve is L-shaped and can be adapted to the chassis.
[0010] Preferably, the support assembly includes a double-acting cylinder mounted on the top of the top shell, and rubber heads are installed at both ends of the power output end of the double-acting cylinder.
[0011] Preferably, the ratchet mechanism includes an active ratchet fixedly installed at the end of the roller, a pawl externally engaged with the active ratchet, the middle part of the pawl being rotatably connected to the top of the top shell via a hinge bolt, a spring being fixedly connected to one end of the pawl near the active ratchet, and the other end of the spring being fixedly installed on the top of the top shell via a fixing block.
[0012] Preferably, the drive assembly includes two gears fixedly mounted on the end of the roller and meshing with each other, wherein the power input end of one of the gears is connected to the power output end of a servo motor.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model is driven by a drive component and a ratchet mechanism, which can simultaneously drive two wire-laying drums to unwind the metal chain. The metal chain is then secured to the frame of the wind turbine generator by buckles at the ends, firmly locking the horizontal wire-laying frame. The unique structure of the ratchet mechanism ensures that the wire-laying drums can only unwind and not rewind, preventing the horizontal wire-laying frame from being dragged if the metal chain is not locked in time after unwinding. This makes the horizontal wire-laying frame more stable and solves the problem that current wind power maintenance wire-laying frames are prone to tipping over or becoming unstable when working at heights in strong winds.
[0015] 2. The chassis of this utility model is square with chamfered corners on all four sides. The support sleeve is L-shaped and can be adapted to the chassis. After the support frame is put on the horizontal wire laying frame, the support frame and the horizontal wire laying frame are connected in a non-rotational manner, that is, the support frame is locked, and the horizontal wire laying frame is also locked, which solves the problem that the current wind power maintenance wire laying frame is prone to tipping over or instability when working at high altitudes in strong winds. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a cross-sectional structural diagram of the present invention to illustrate the structure of the ratchet mechanism;
[0018] Figure 3 for Figure 2 Schematic diagram of the structure at point A;
[0019] Figure 4 This is a cross-sectional structural diagram of the present invention, illustrating the structure of the fixed chain assembly.
[0020] The labels in the diagram are as follows: 1. Horizontal cable feeder; 2. Support frame; 3. Fixed chain assembly; 4. Support assembly; 5. Ratchet mechanism; 6. Drive assembly;
[0021] 101. Chassis; 102. Cable reel; 103. Turntable; 104. Roller;
[0022] 201. Support sleeve; 202. Top plate; 203. Top shell; 204. Rotary hole;
[0023] 301. Roller; 302. Metal chain; 303. Buckle;
[0024] 401. Double-acting cylinder; 402. Rubber head;
[0025] 501. Drive ratchet; 502. Pad; 503. Hinge bolt; 504. Spring; 505. Fixing block;
[0026] 601. Gear; 602. Servo motor; Detailed Implementation
[0027] like Figures 1 to 4 As shown, the present invention relates to a wind power maintenance cable laying frame, including a horizontal cable laying frame 1, a support frame 2 non-rotatingly mounted on the horizontal cable laying frame 1, a fixed chain assembly 3 mounted on the support frame 2, a drive assembly 6 connected to the power input end of the fixed chain assembly 3 through a ratchet mechanism 5, and a support assembly 4 externally connected to the ratchet mechanism 5.
[0028] The fixed chain assembly 3 includes two sets of rollers 301, both rotatably mounted on the support frame 2. A metal chain 302 is wound around the rollers 301, and a buckle 303 is installed at the end of the metal chain 302. This invention is driven by a drive assembly 6 and a ratchet mechanism 5, which simultaneously drives two wire-laying drums 102 to unwind the metal chain 302. The buckle 303 at the end of the metal chain 302 securely fastens it to the frame of the wind turbine generator, firmly locking the horizontal wire-laying frame 1. The ratchet mechanism... The unique structure of mechanism 5 allows the pay-off spool 102 to only unwind and not rewind, preventing the horizontal pay-off frame 1 from being dragged if the metal chain 302 is not locked in time after unwinding. This makes the horizontal pay-off frame 1 more stable. The base 101 is square with chamfered corners. The support sleeve 201 is L-shaped and can be adapted to the base 101. After the support frame 2 is put on the horizontal pay-off frame 1, the support frame 2 is non-rotatably connected to the horizontal pay-off frame 1, that is, the support frame 2 is locked, and the horizontal pay-off frame 1 is also locked.
[0029] Preferably, the horizontal cable feeding frame 1 includes a chassis 101, a cable feeding drum 102 is fixedly connected to the center of the chassis 101, a turntable 103 is rotatably connected to the outside of the cable feeding drum 102, and a number of rollers 104 are installed in a circumferentially equidistant array at the bottom of the turntable 103 and are rotatably connected to the top of the chassis 101 through the rollers 104, so as to facilitate smooth cable feeding.
[0030] Preferably, the support frame 2 includes a non-rotatable support sleeve 201 that fits onto the outer diagonal of the chassis 101. There are two sets of support sleeves 201, and a top plate 202 is fixedly connected to the top. A top shell 203 is fixedly connected to the top of the top plate 202. A rotating hole 204 is provided at the axis of the top plate 202. Since the support sleeve 201 fits onto the outer diagonal of the chassis 101 in a non-rotatable manner, when the support frame 2 is locked, the chassis 101, i.e. the horizontal cable tray 1, is also locked and can stand stably on the ground.
[0031] Preferably, the chassis 101 is square with chamfers at all four corners, and the support sleeve 201 is L-shaped and can be adapted to the chassis 101, so that the support sleeve 201 can be non-rotatably fitted onto the outside of the chassis 101.
[0032] Preferably, the support assembly 4 includes a double-acting cylinder 401 mounted on the top of the top shell 203. Both ends of the double-acting cylinder 401 are equipped with rubber heads 402, which can drive the double-acting cylinder 401 to extend and retract, thereby causing the pawl 502 to move.
[0033] Preferably, the ratchet mechanism 5 includes an active ratchet 501 fixedly installed at the end of the winding roller 301. The active ratchet 501 is externally engaged with a pawl 502. The middle part of the pawl 502 is rotatably connected to the top of the top shell 203 through a hinge bolt 503. A spring 504 is fixedly connected to one end of the pawl 502 near the active ratchet 501. The other end of the spring 504 is fixedly installed on the top of the top shell 203 through a fixing block 505. The unique structure of the ratchet mechanism 5 allows the pay-off drum 102 to only unwind and not rewind, preventing the horizontal pay-off frame 1 from being dragged if the metal chain 302 is not locked in time after unwinding, thus making the horizontal pay-off frame 1 more stable.
[0034] Preferably, the drive assembly 6 includes a gear 601 fixedly mounted on the end of the roller 301. There are two gears 601 that are meshed with each other. The power input end of one of the gears 601 is connected to the power output end of the servo motor 602 for easy driving.
[0035] Working Principle: This embodiment provides a wind power maintenance cable laying frame. In use, this utility model is driven by the drive assembly 6 and the ratchet mechanism 5, which simultaneously drives two cable laying drums 102 to unwind the metal chain 302. The chain 302 is secured to the wind turbine frame via buckles 303 at its ends, firmly locking the horizontal cable laying frame 1. The unique structure of the ratchet mechanism 5 ensures that the cable laying drums 102 can only unwind, not rewind, preventing the metal chain 302 from retracting after unwinding and causing the horizontal cable laying frame 1 to be dragged. This makes the horizontal cable laying frame 1 more stable. The base 101... The support sleeve 201 is square with chamfered corners on all four sides. It is L-shaped and can be fitted to the chassis 101. After the support frame 2 is placed on the horizontal wire feeding frame 1, the support frame 2 and the horizontal wire feeding frame 1 are connected in a non-rotational manner, that is, the support frame 2 is locked, and the horizontal wire feeding frame 1 is also locked. After the horizontal wire feeding frame 1 is placed in the target position, the wire spool to be unwound is placed on the outside of the wire feeding drum 102. The support frame 2 is non-rotationally fitted on the outside of the horizontal wire feeding frame 1. The support sleeve 201 is non-rotationally fitted on the outside of the chassis 101 at the opposite corner, with the bottom of the support sleeve 201 touching the ground. The servo motor is controlled by an external power supply and controlled by an external switch. Action 602: Servo motor 602 synchronously drives two unwinding rollers 301 via gear 601 to unwind. Due to the ratchet mechanism 5, the unwinding drum 102 can only unwind, not rewind. That is, the left-end active ratchet 501 can only rotate counterclockwise, and the right-end active ratchet 501 can only rotate clockwise. When the left-end active ratchet 501 rotates counterclockwise, the active ratchet 501 causes the left-end pawl 502 to rotate to the right through its external teeth. The spring 504 is compressed, preventing the metal chain 302 from retracting after unwinding and dragging the horizontal unwinding frame 1. The stand is more stable. When the metal chain 302 is unwound to a sufficient length, the metal chain 302 is fastened to the generator set frame through the buckle 303 at the end. It is locked by the metal chain 302 at the top of the horizontal wire feeding frame 1, so that the horizontal wire feeding frame 1 is not easy to tip over in strong winds. When it is necessary to rewind, the double-acting cylinder 401 is controlled to extend at both ends. The rubber head 402 pushes the tail of the pawl 502 at both ends outward, so that the heads of the pawl 502 at both ends are separated from the active ratchet 501. The self-locking is released and the wire feeding can be rewound (the double-acting cylinder 401 and the servo motor 602 are both existing products on the market).
[0036] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.
Claims
1. A wind power maintenance cable laying frame, characterized in that, It includes a horizontal wire feeding frame (1), on which a support frame (2) is non-rotatingly fitted, and a fixed chain assembly (3) is installed on the support frame (2). The power input end of the fixed chain assembly (3) is connected to a drive assembly (6) through a ratchet mechanism (5), and a support assembly (4) is externally connected to the ratchet mechanism (5). The fixed chain assembly (3) includes a roller (301), which has two sets and is rotatably mounted on the support frame (2). A metal chain (302) is wound around the roller (301), and a buckle (303) is installed at the end of the metal chain (302).
2. The wind power maintenance cable laying frame according to claim 1, characterized in that, The horizontal wire feeding frame (1) includes a chassis (101), a wire feeding drum (102) is fixedly connected to the center of the chassis (101), a turntable (103) is rotatably connected to the outside of the wire feeding drum (102), and a number of rollers (104) are installed in a circumferentially equidistant array at the bottom of the turntable (103) and are rotatably connected to the top of the chassis (101) through the rollers (104).
3. A wind power maintenance cable laying frame according to claim 2, characterized in that, The support frame (2) includes a non-rotating support sleeve (201) that is fitted around the outer diagonal of the chassis (101). There are two sets of the support sleeve (201) and a top plate (202) is fixedly connected to the top. A top shell (203) is fixedly connected to the top of the top plate (202). A rotating hole (204) is provided at the axis of the top plate (202).
4. A wind power maintenance cable laying frame according to claim 3, characterized in that, The chassis (101) is square with chamfered corners on all four sides, and the support sleeve (201) is L-shaped and can be adapted to the chassis (101).
5. A wind power maintenance cable laying frame according to claim 1, characterized in that, The support assembly (4) includes a double-acting cylinder (401) mounted on the top of the top shell (203), and rubber heads (402) are installed at both ends of the power output end of the double-acting cylinder (401).
6. A wind power maintenance cable laying frame according to claim 1, characterized in that, The ratchet mechanism (5) includes an active ratchet (501) fixedly installed at the end of the roller (301). The active ratchet (501) is externally engaged with a pawl (502). The middle part of the pawl (502) is rotatably connected to the top of the top shell (203) through a hinge bolt (503). A spring (504) is fixedly connected to one end of the pawl (502) near the active ratchet (501). The other end of the spring (504) is fixedly installed on the top of the top shell (203) through a fixing block (505).
7. A wind power maintenance cable laying frame according to claim 1, characterized in that, The drive assembly (6) includes a gear (601) fixedly mounted on the end of the roller (301). There are two gears (601) that are meshed with each other. The power input end of one of the gears (601) is connected to the power output end of a servo motor (602).