Wind power maintenance rail platform

Abstract

The invention relates to a wind power maintenance guide rail platform, comprising a hanging basket device, a fixing device installed on the hanging basket device, a hanging track device, a counterweight device, an electric track climber installed on the hanging track device, and a double-person hanging chair device installed on the electric track climber. The hanging basket device is lifted and lowered along the tower tube, and is fixed on the wind power equipment by the fixing device. The balance of the equipment is improved by the counterweight device. When working, the closing of the hanging track is controlled by operating the opening and closing oil cylinder, and the two hanging tracks are locked as a whole by using the track closing locking device. The electric track climber on the hanging track drives the double-person hanging chair to move horizontally on the hanging track to perform maintenance around the blades, and can move up and down along the blades under the drive of the double-person hanging chair hoist to perform blade maintenance in the up and down directions. The device is stable and safe, and wall wheels or guide wheels are installed on the parts that contact the tower body and the blades to protect the tower body and the blades.

Description

Technical Field

[0001] The invention relates to a maintenance platform, in particular to a wind power maintenance guide rail platform. Background Art

[0002] The fan blade is one of the key components of the wind turbine. Its performance directly affects the performance of the entire system. The blade works at high altitude in a very harsh environment. Various media in the air are eroding the blade almost every moment. Spring, summer, autumn and winter, extreme heat and cold, lightning, hail, rain, snow, and dust may cause damage to the fan at any time. Hidden dangers may turn into accidents every day.

[0003] According to statistics, the most frequent accidents in wind farms are during the peak wind power generation period, and blade accidents account for one-third of the accidents. When blade accidents occur, the power plant must stop generating electricity and start emergency repairs. In serious cases, the blades must be replaced, which will inevitably lead to high maintenance costs and cause great economic losses to the wind farm. Therefore, it is necessary to increase the daily maintenance and inspection of the blades to ensure the service life of the blades. However, the minimum height of the wind tower is 65 meters, which is relatively high, and the blades are far away from the tower body and are tilted relative to the tower body, so maintenance is inconvenient. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a wind power maintenance rail platform which is highly safe, convenient for maintaining blades, and will not cause damage to the blades. The specific technical solution is as follows:

[0005] A wind power maintenance rail platform comprises a hanging basket device, and also comprises: a double hanging chair device, a hanging track device, a fixing device, and a counterweight device; the hanging track device is installed on the top of the hanging basket device, and the hanging track device comprises: two hanging rails, a track opening and closing device, an opening and closing oil cylinder, a track closing locking device, and an electric track climber, the opening and closing oil cylinder is linked with the track opening and closing device, the track opening and closing device is connected with the two hanging rails, and is used to drive the opening and closing of the two hanging rails, the two hanging rails are close to the surrounding of the wind turbine blades, and the two hanging rails are provided with a track closing locking device at one end away from the closing oil cylinder, which is used to lock the two hanging rails into one, and the two hanging rails are installed with an electric track climber, and a double hanging chair device that can be raised and lowered is provided below the electric track climber, and the electric track climber is used to drive the double hanging chair device to translate along the hanging rail; the fixing device is installed on the hanging basket device, and is used to fix the hanging basket device on the wind power equipment; counterweight devices for maintaining balance are installed on both sides of the bottom of the hanging basket device.

[0006] Furthermore, the track opening and closing device includes: a support arm linked to the piston of the opening and closing cylinder, a connecting arm and a driving arm axially connected to the other end of the support arm, and a fixed arm axially connected to the other end of the connecting arm, the driving arm is connected to the inner side of the suspension track, the piston of the opening and closing cylinder telescopes and pushes the support arm to move along the direction of piston telescopic movement, and the support arm drives the connecting arm and the driving arm to rotate the axis, so that the driving arm pushes the suspension track to open and close.

[0007] Furthermore, a sliding support surface is provided below the track opening and closing device, and the sliding support surface is located at the bottom of the suspension track.

[0008] Furthermore, the double hanging chair device is arranged up and down, and a double hanging chair device hoist is arranged on the back of the double hanging chair device. An anti-rotation wire rope is connected between the double hanging chair device hoist and the electric track climber. The double hanging chair device hoist is used to drive the hanging chair to move up and down along the fan blades. Wall wheels are arranged on both sides of the double hanging chair device, and the wall wheels roll up and down along the blades.

[0009] Furthermore, the fixing device includes a wire rope tensioning and locking device and / or a blade root clamping device; the wire rope tensioning and locking device is arranged on the outer periphery of the wind turbine tower body, the wire rope tensioning and locking device is connected to the hanging basket device, and the wire rope tensioning and locking device is used to lock the hanging basket device to the side of the wind turbine tower body; the blade root clamping device is arranged on one side of the blade root and is installed on the hanging basket device, and is used to press the hanging basket device to fix the blade root.

[0010] Furthermore, the wire rope tensioning and locking device is provided with two sets distributed up and down, and each set of the wire rope tensioning and locking device includes: a reset spring, two rocker arms, a tensioning wire rope and a tensioner, one end of the two rocker arms is connected by a tensioning wire rope, and the other end of the two rocker arms is respectively connected to a reset spring, and the reset spring is installed on two sides of the hanging basket device, and the reset spring is used to realize the reset of the rocker arm, and the tensioning wire rope is connected to the tensioner.

[0011] Furthermore, the tensioning steel wire rope is wrapped with an external protective sheath.

[0012] Furthermore, the swing rod has an arc device, and one end of the swing rod connected to the steel wire rope is equipped with a guide wheel that slides along the wind turbine tower body.

[0013] Furthermore, the blade root clamping device includes an arc-shaped clamping plate, a rubber plate installed on the clamping plate, a driven pressure rod hinged to the clamping plate at one end and symmetrically located at both ends of the clamping plate, an active pressure rod hinged to the other end of the driven pressure rod and the hanging basket device at both ends and symmetrically arranged, a clamping nut hinged to the active pressure rod, a clamping screw connected to the clamping nut by a thread, and a clamping handwheel fixed to the clamping screw.

[0014] Furthermore, the counterweight device includes: a counterweight arm and a counterweight block. The counterweight arm adopts a folding device. The counterweight arm is installed on both sides of the bottom of the hanging basket device and is located on different sides of the tower body. A guide wheel is provided on the side of the counterweight arm close to the tower body. The counterweight block is installed on the counterweight arm, and the counterweight block is located at the end of the counterweight arm away from the hanging basket device.

[0015] Furthermore, a hoist is installed on the hanging basket device, and a lifting wire rope is connected between the hoist and the hanging point on the top of the wind turbine tower. The hoist reels in the lifting wire rope to drive the hanging basket device to rise and fall, and a wall wheel is arranged on the back of the hanging basket device.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The wind power maintenance guide rail platform provided by the present invention utilizes a lift to drive the hanging basket device to rise and fall, and fixes the wind power equipment through a fixing device, and at the same time improves the balance of the equipment through a counterweight device. When working, the closing of the suspension track is controlled by operating the opening and closing cylinder, and the two suspension tracks are locked as a whole by using the track closing locking device. The electric track climber on the suspension track drives the double chair to move horizontally on the suspension track to perform maintenance around the blades, and can move up and down along the blades under the drive of the double chair hoist to perform blade maintenance in the up and down directions. The patented device is stable and safe, and wall wheels or guide wheels are installed on the parts that contact the tower body and blades to protect the tower body and blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the inner side of the blade root of the maintenance platform when the patent application is in working condition;

[0019] Figure 2 A schematic diagram of the present patent application located outside the maintenance platform when the present patent application is in working condition;

[0020] Figure 3 A schematic diagram of the device of this patent application;

[0021] Figure 4 This is another schematic diagram of a device of the present patent application;

[0022] Figure 5 is a cross-sectional schematic diagram of the suspension track in a closed state;

[0023] Figure 6 is a cross-sectional schematic diagram of the suspension track in an open state;

[0024] Figure 7 is a cross-sectional schematic diagram of a wire rope tensioning and locking device, in which the tensioning wire rope is in a loosened state;

[0025] Figure 8 is a cross-sectional schematic diagram of a wire rope tensioning and locking device, in which the tensioning wire rope is in a tensioned state;

[0026] Fig. 9 is a cross-sectional schematic diagram of a counterweight device;

[0027] Fig.10 It is a schematic diagram of the structure in which the blade root clamping device is pressed against the blade root;

[0028] Fig.11 is a top view of the blade root clamping device pressed against the blade root;

[0029] Fig.12 is a top view of the blade root with the blade root clamping device released;

[0030] Fig.13 It is a structural schematic diagram of the blade root clamping device.

[0031] In the figure, 1, tower body, 2, blades, 3, hanging basket device, 301, hoist, 302, wire rope,

[0032] 4. Suspension track device, 401. Suspension track, 402. Track opening and closing device, 403. Opening and closing cylinder,

[0033] 404. Track closing and locking device, 405. Electric track climber, 406. Double chairlift, 407. Double chairlift hoist, 408. Anti-rotation wire rope,

[0034] 4021, support arm, 4022, connecting arm, 4023, driving arm, 4024, fixed arm,

[0035] 5. Wire rope tensioning and locking device, 501. Return spring, 502. Swing rod, 503. Tighten the wire rope,

[0036] 504, tightener, 510, clamping plate, 511, rubber plate, 512, driven pressure rod, 513, active pressure rod, 514, clamping screw, 515, clamping hand wheel, 516, clamping nut,

[0037] 6. Counterweight device, 601. Counterweight arm, 602. Counterweight block,

[0038] 7. Wall wheel, 8. Sliding support surface, 9. Guide wheel, 10. Safety rope. DETAILED DESCRIPTION

[0039] The present invention will be further described with reference to the accompanying drawings.

[0040] like Figures 1 to 9 As shown, the patent application includes: a hanging basket device, a hanging track device, a fixing device, and a counterweight device. The hanging basket device is the main platform, which carries the lifting of the entire equipment, is safe and reliable, and is installed with a hoist and a main control electric box. A lifting wire rope is connected between the hoist and the hanging point on the top of the wind turbine tower. The hoist reels in the lifting wire rope to drive the hanging basket device to lift and lower, and the four lifting wire ropes move synchronously to ensure that the lifting state of the equipment is stable. A wall-leaning wheel is arranged on the back of the hanging basket device, which slides along the wind turbine tower to protect the tower; a safety lock is installed on the hanging basket device, and the safety lock cooperates with the safety rope to enhance the protection. When the hanging basket device rises to its place, the hanging basket device is manually hung on the hook at the end of the working wire rope; the hanging basket device descends, so that the weight of the hanging basket device is completely transferred to the working wire rope, so that the safety wire rope and the lifting wire rope are slightly loosened, and then the safety wire rope is manually tightened to ensure that the safety wire rope plays a protective role.

[0041] The fixing device includes a wire rope tensioning and locking device and / or a blade root clamping device; the wire rope tensioning and locking device is arranged on the outer periphery of the wind turbine tower body, the wire rope tensioning and locking device is connected to the hanging basket device, and the wire rope tensioning and locking device is used to lock the hanging basket device to the side of the wind turbine tower body; the blade root clamping device is arranged on one side of the blade root and is installed on the hanging basket device, and is used to press the hanging basket device to fix the blade root.

[0042] Figures 3 to 6As shown, a hanging track device is installed on the top of the hanging basket device, and the hanging track device includes two hanging rails, a track opening and closing device, an opening and closing oil cylinder, a track closing locking device, an electric track climber, and a double hanging chair device. The opening and closing oil cylinder is linked to the track opening and closing device, and the track opening and closing device is connected to the two hanging rails to drive the opening and closing of the two hanging rails. Specifically: two symmetrical groups of track opening and closing devices are arranged, and each group of track opening and closing devices drives one hanging rail respectively. Each group of track opening and closing devices includes: a supporting arm linked to the piston of the opening and closing oil cylinder, a connecting arm and a driving arm connected to the other end shaft of the supporting arm, The fixed arm is axially connected to the other end of the connecting arm, and the driving arm is connected to the inner side of the suspension track. The piston of the opening and closing oil cylinder is extended and retracted to push the supporting arm to move along the direction of the piston extension and retraction. The supporting arm drives the connecting arm and the driving arm to rotate the axis, and the driving arm is used to push the opening and closing of the suspension track. A sliding supporting surface is provided below the track opening and closing device. The sliding supporting surface is located at the bottom of the suspension track and has a smooth surface. Due to the small friction with the bottom of the track, the track opening and closing is smoother; the two suspension tracks are close to the fan blades, and a track closing locking device is provided at one end of the two suspension tracks away from the hanging basket device. The suspension guide rails are as follows Figure 5 When the suspension track is in the closed state as shown, the track closing locking device is pushed by the electric push rod to lock the two suspension tracks as a whole. A blade auxiliary support device is also provided at the end of the suspension track away from the tower body. The suspension track and the blade auxiliary support device support the blade, so that the two ends of the suspension track are stressed and the stress state is better. An electric track climber is installed on the suspension track, and a double hanging chair device is arranged under the electric track climber. When the suspension track is locked as a whole, the electric track climber can crawl horizontally along the suspension track to drive the double hanging chair device to move around the fan blades. The lower layout is that a double chair hoist is arranged on the back of the double chair device, one end of the anti-rotation wire rope is connected to the double chair hoist, and the other end is connected to the electric track climber. The double chair hoist drives the chair to move up and down along the fan blades, and the anti-rotation wire rope used is synchronously lifted to ensure the stability of the double chair device. Wall wheels are arranged on both sides of the double chair device, the extension distance of which can be adjusted, and they can roll up and down along the blades to prevent damage to the blades, and the operator can manually adjust the angle between the double chair device and the blades in the double chair device.

[0043] Figure 7 , Figure 8As shown, the hanging basket device is connected with the wire rope tensioning and locking device, and the wire rope tensioning and locking device is provided with two sets distributed up and down, and the wire rope tensioning and locking device locks the hanging basket device to the circumference of the wind turbine tower body, and the wire rope tensioning and locking device comprises: a reset spring, two swing rods with an arc device, and a tensioning wire rope, one end of the two swing rods is connected by a tensioning wire rope, and one end of the swing rod connected to the wire rope is equipped with a guide wheel to protect the tower body, and the other ends of the two swing rods are respectively connected with reset springs, and the reset springs are installed on the two sides of the hanging basket device to realize the reset of the swing rod; the outer protective sleeve of the tensioning wire rope is wrapped to protect the tower body, and the tensioning wire rope is connected to the tensioner to realize the tightness of the tensioning wire rope. When the hanging basket device reaches the specified position, the staff on the hanging basket device uses the tensioner to tighten the wire rope to lock the equipment to the tower body.

[0044] Fig. 9 As shown, counterweight devices are installed on both sides of the bottom of the hanging basket device to maintain the balance of the equipment. The counterweight device includes: a counterweight arm and a counterweight block. The counterweight arm adopts a folding device for easy transportation and storage. The counterweight arms are installed on both sides of the bottom of the hanging basket device and are located on different sides of the tower body. A guide wheel is provided on the side of the counterweight arm close to the tower body to protect the tower body. The counterweight block is installed on the counterweight arm and is located at the end of the counterweight arm away from the hanging basket device.

[0045] like Figures 10 to 13 As shown, the blade root clamping device includes an arc-shaped clamping plate, a rubber plate installed on the clamping plate, a driven pressure rod hinged to the clamping plate at one end and symmetrically located at both ends of the clamping plate, an active pressure rod hinged to the other end of the driven pressure rod and a hanging basket device at both ends and symmetrically arranged, a clamping nut hinged to the active pressure rod, a clamping screw connected to the clamping nut by threading, and a clamping handwheel fixed to the clamping screw. When the clamping screw is turned, the clamping screw adjusts the angle between the two active pressure rods through the clamping nut, thereby adjusting the distance between the clamping plate and the blade, and clamping and loosening the blade. When clamped on the blade, the hanging basket device is fixed, which improves stability and safety. After the blade is loosened, it can be raised and lowered.

[0046] When using the above device to repair blades, first set a safe and reliable hanging point on the top of the wind turbine tower, insert one end of the wire rope into the hanging point, and insert the other end into the equipment safety lock and hoist, fix the safety rope, the operator fastens the safety rope, takes protective measures, and tightens the wire rope around the tower to tighten the tensioning wire rope in the locking device. At this time, the tensioning wire rope is in a loose state; fix the wire rope on the rope hanging plate of the electric track climber, and insert the other end into the hoist of the double chair device of the double chair device. When the suspension rail is in the open state, use the elevator to raise the hanging basket device to the level of the blade root. The operator in the hanging basket platform tightens the tensioning wire rope through the tensioner, and controls the opening and closing cylinder to close the suspension rail, and closes the track at the far end of the suspension rail to lock the device. Lock the two suspension rails so that they are locked as a whole; the operator can control the horizontal movement of the electric track climber on the guide rail, and can perform maintenance work on the surrounding areas of the blades in the current horizontal position. The operator in the double chair device adjusts the wall wheels and controls the double chair device to descend along the blades, so that maintenance work can be performed on the blades in the vertical direction of the current position. The electric track climber can be moved horizontally and the double chair device can be raised and lowered to perform construction operations on the entire maintenance surface of the blades. After the construction is completed, the double chair device is first raised to the top, and then the electric track climber is moved closer to the hanging basket platform. First, the track closing locking device at the far end of the guide rail is opened, and then the suspension guide rail is opened. Finally, the tensioned wire rope is loosened and the equipment is lowered to the ground by a lift. The personnel leave the equipment, pull out the wire rope, and dismantle the equipment.

[0047] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. Wind power maintenance rail platform, including a hanging basket device, characterized by: Also includes: Double chairlift device, suspension track device, fixing device, counterweight device; The suspension track device is installed on the top of the hanging basket device, and the suspension track device includes: two suspension rails, a track opening and closing device, an opening and closing oil cylinder, a track closing locking device, and an electric track climber. The opening and closing oil cylinder is linked with the track opening and closing device, and the track opening and closing device is connected with the two suspension rails to drive the opening and closing of the two suspension rails. The two suspension rails are close to the surrounding of the fan blades, and the ends of the two suspension rails away from the closing oil cylinder are provided with a track closing locking device for locking the two suspension rails as a whole. The two suspension rails are installed with electric track climbers, and a liftable double-seat hanging chair device is provided below the electric track climber. The electric track climber is used to drive the double-seat hanging chair device to translate along the suspension rails; The fixing device is installed on the hanging basket device and is used to fix the hanging basket device on the wind power equipment; Counterweight devices for maintaining balance are installed on both sides of the bottom of the hanging basket device; The track opening and closing device comprises: a support arm linked with the piston of the opening and closing oil cylinder, a connecting arm and a driving arm connected to the other end of the support arm, and a fixed arm connected to the other end of the connecting arm. The driving arm is connected to the inner side of the suspension track. The piston of the opening and closing oil cylinder is extended and retracted to push the support arm to move along the direction of the piston extension and retraction. The support arm drives the connecting arm and the driving arm to rotate the axis, so that the driving arm pushes the suspension track to open and close. The fixing device comprises a wire rope tensioning and locking device and / or a blade root clamping device; The wire rope tensioning and locking device is arranged on the outer periphery of the wind turbine tower body, the wire rope tensioning and locking device is connected to the hanging basket device, and the wire rope tensioning and locking device is used to lock the hanging basket device to the side of the wind turbine tower body; The blade root clamping device is arranged at one side of the blade root and is installed on the hanging basket device, and is used to press and fix the hanging basket device at the blade root; The wire rope tensioning and locking device is provided with two sets distributed up and down, and each set of the wire rope tensioning and locking device includes: a reset spring, two rocker arms, a tensioning wire rope and a tensioner, one end of the two rocker arms is connected by a tensioning wire rope, and the other ends of the two rocker arms are respectively connected to reset springs, which are installed on two sides of the hanging basket device. The reset spring is used to realize the reset of the rocker arm, and the tensioning wire rope is connected to the tensioner.

2. The wind power maintenance guide rail platform according to claim 1, characterized in that: A sliding support surface is arranged below the track opening and closing device, and the sliding support surface is located at the bottom of the suspension track.

3. The wind power maintenance guide rail platform according to claim 1, characterized in that: The double hanging chair device is arranged up and down, and a double hanging chair device hoist is arranged on the back of the double hanging chair device. An anti-rotation wire rope is connected between the double hanging chair device hoist and the electric track climber. The double hanging chair device hoist is used to drive the hanging chair to move up and down along the fan blades. Wall wheels are arranged on both sides of the double hanging chair device, and the wall wheels roll up and down along the blades.

4. The wind power maintenance guide rail platform according to claim 1, characterized in that: The swing rod has an arc device, and one end of the swing rod connected to the steel wire rope is provided with a guide wheel that slides along the wind turbine tower body.

5. The wind power maintenance guide rail platform according to claim 1, characterized in that: The blade root clamping device includes an arc-shaped clamping plate, a rubber plate installed on the clamping plate, a driven pressure rod hinged to the clamping plate at one end and symmetrically located at both ends of the clamping plate, an active pressure rod hinged to the other end of the driven pressure rod and the hanging basket device at both ends and symmetrically arranged, a clamping nut hinged to the active pressure rod, a clamping screw connected to the clamping nut by a thread, and a clamping handwheel fixed to the clamping screw.

6. The wind power maintenance guide rail platform according to claim 1, characterized in that: The counterweight device includes: a counterweight arm and a counterweight block. The counterweight arm adopts a folding device. The counterweight arm is installed on both sides of the bottom of the hanging basket device and is located on different sides of the tower body. A guide wheel is provided on the side of the counterweight arm close to the tower body. The counterweight block is installed on the counterweight arm. The counterweight block is located at the end of the counterweight arm away from the hanging basket device.

7. The wind power maintenance guide rail platform according to claim 1, characterized in that: A hoist is installed on the hanging basket device, and a lifting wire rope is connected between the hoist and the hanging point on the top of the wind turbine tower. The hoist reels in the lifting wire rope to drive the hanging basket device to rise and fall, and a wall wheel is arranged on the back of the hanging basket device.

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