A Split-Type Climb-Free Hoisting Platform for Wind Turbines and a Climb-Free Device Incorporating the Same

Abstract

The present invention discloses a split-type non-climbing lifting platform for a wind turbine and a non-climbing device including the same. The split-type non-climbing lifting platform for a wind turbine includes a left side plate, a right side plate, a connecting device and a roller device. The left side plate and the right side plate are arranged horizontally in parallel. The left side plate and the right side plate are integrated by several connecting devices. A roller device is fixedly connected to the back surfaces of the left side plate and the right side plate. A steel wire rope passes through the roller device to drive the left side plate and the right side plate to lift. In case of a failure or an emergency of the non-climbing device, maintenance personnel can quickly split the lifting platform into two parts without tools, leaving space for the climbing ladder, which facilitates the maintenance personnel to climb up and down the nacelle smoothly.

Description

Technical Field

[0001] The present invention relates to the field of wind turbine non-climbing devices, and particularly to a split-type non-climbing device lifting platform for wind turbines and a non-climbing device including the same. Background Art

[0002] With the increase in the single-unit power of wind turbines, the height of the tower barrel has also increased. The previously standard climbing aids for the units can no longer meet the needs of personnel to get on and off the nacelle. More and more complete machine manufacturers use non-climbing devices as the standard for units with a power rating of 2 MW and above. The current working mode of the unit non-climbing device is as follows: the motor drives the drive wheel, the drive wheel drives the steel wire rope, and the steel wire rope drives the lifting platform part to achieve the lifting function. The existing layout of the lifting platform and the steel wire rope of the non-climbing device is as follows: the lifting platform is an integral body, located in front of the ladder (the side facing the manhole inside the tower barrel is the front, and the side facing away from the manhole is the back). The steel wire rope is arranged on the front and back of the ladder through the pulleys at the top and bottom of the ladder. The entire lifting platform is only fixed to the steel wire rope and is not connected to the ladder. The safety rope is independently arranged on the front of the ladder.

[0003] Due to the harsh operating environment of wind turbines, possible sudden failures or maintenance and repairs of non-climbing device components may cause the non-climbing device to be temporarily unusable. In such cases, the maintenance personnel of the unit need to climb the tower manually through the ladder. For the existing non-climbing devices, since the lifting platform and half of the number of steel wire ropes are located on the front of the ladder, it occupies the usable space of the ladder. Especially for the evenly distributed steel wire ropes, it seriously affects the contact between the hands and feet of the personnel and the ladder, resulting in difficult climbing for the maintenance personnel and even making it impossible to use the ladder normally. If a failure occurs during the operation of the lifting platform, it will cause the maintenance personnel to be trapped in mid-air; in case of an emergency, if the maintenance personnel need to quickly descend the tower, since the descent speed of the lifting platform is relatively slow and it blocks the manhole passage, it will seriously affect the evacuation speed. Even if the maintenance personnel illegally cross the lifting platform in the air, they cannot quickly descend the tower on the ladder with multiple steel wire ropes, and it is inevitable to get bruised or bumped.

[0004] It can be seen that the above-mentioned existing non-climbing device lifting platforms in terms of structure and use obviously still have inconveniences and defects and urgently need to be further improved. How to create a new split-type non-climbing device lifting platform for wind turbines is indeed one of the important current research topics / has become an extremely urgent improvement goal in the current industry. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a split-type non-climbing device lifting platform for wind turbines, which can be split into two parts without tools in case of a failure or an emergency of the non-climbing device, making room for the ladder so that the maintenance personnel can smoothly get on and off the nacelle, thereby overcoming the deficiencies of the existing non-climbing device lifting platforms.

[0006] To solve the above technical problems, the present invention provides a split-type non-climbing device lifting platform for a wind turbine, which includes a left side plate, a right side plate, a connecting device, and a roller device. The left side plate and the right side plate are arranged side by side left and right. The left side plate and the right side plate are detachably connected into one body by several connecting devices. The back of the left side plate and the right side plate is fixedly connected with a roller device, and a steel wire rope drives the left side plate and the right side plate to lift.

[0007] As an improvement of the present invention, the shapes of the left side plate and the right side plate are both "L" shaped.

[0008] Further, there is a gap between the left side plate and the right side plate, and a safety rope is allowed to pass through the gap.

[0009] Further, the number of the roller devices is four, which are respectively installed at the upper and lower parts of the vertical section of the left side plate, and the upper and lower parts of the vertical section of the right side plate.

[0010] Further, the roller device includes a roller bracket, a roller, and a connecting buckle. The roller bracket is U-shaped. One end of the roller bracket is fixedly connected to the back of the left side plate or the right side plate. Two rollers are installed side by side on the roller bracket through bearings. A connecting buckle is installed at the other end of the roller bracket. The two rollers are respectively in contact with the vertical beam of the climbing ladder to play a guiding role. The connecting buckle allows the steel wire rope to pass through and be fastened, so that the movement of the steel wire rope can drive the left side plate and the right side plate to lift.

[0011] Further, the connecting device includes a base, a connecting rod, and a pin. Among them:

[0012] The base is a semi-circular metal block, which is fixed on the left side plate and the right side plate. There is a through hole in the middle of the base, allowing the connecting rod to pass through;

[0013] The connecting rod is a solid rod body. One end of the connecting rod has a bend so that the connecting rod is "L" shaped. The other end of the connecting rod is provided with a pin hole for installing a pin. The connecting rod can pass through the through hole on the base to connect the left side plate and the right side plate into one body;

[0014] The pin is installed in the pin hole of the connecting rod to prevent the connecting rod from slipping out of the base.

[0015] Further, the split-type non-climbing device lifting platform for a wind turbine further includes a control system, which is installed in the middle of the vertical section of the left side plate or the right side plate to control the lifting of the platform.

[0016] In addition, the present invention also provides a non-climbing device, so that in case of failure or emergency, the lifting platform can be disassembled into two parts without tools, leaving the space of the climbing ladder, enabling the operation and maintenance personnel to smoothly go up and down the nacelle, thereby overcoming the deficiencies of the existing non-climbing devices.

[0017] To solve the above technical problems, the present invention provides a climbing-free device, which includes the split-type climbing-free device lifting platform of the wind turbine generator set as described above. The steel wire rope is fixedly connected to the split-type climbing-free device lifting platform of the wind turbine generator set and drives the split-type climbing-free device lifting platform of the wind turbine generator set to perform lifting motion.

[0018] As a further improvement, the split-type climbing-free device lifting platform of the wind turbine generator set is installed on the front of the ladder, and the steel wire rope is installed on the back of the ladder.

[0019] After adopting such a design, the present invention has at least the following advantages:

[0020] 1. The lifting platform composed of the left side plate and the right side plate has a splitting function. When the climbing-free device stops in the middle due to a fault, the lifting platform can be split into two parts and pushed from both sides of the ladder to the back of the ladder to clear the passage for climbing up and down the ladder.

[0021] 2. The connecting device is locked by a pin. When maintenance personnel need to split the lifting platform, they do not need to use any tools and only need to pull out the pin to quickly complete the splitting action.

[0022] 3. The steel wire rope is installed on the back of the ladder, and the safety rope is arranged in the gap between the left side plate and the right side plate on the front of the ladder, leaving the artificial climbing space on the front of the ladder. This is convenient for operation and maintenance personnel to smoothly get on and off the nacelle when the climbing-free device cannot work. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, the following further detailed description of the present invention will be given in combination with the drawings and specific embodiments.

[0024] Figure 1 It is an installation schematic diagram of the split-type climbing-free device lifting platform of the wind turbine generator set provided by the present invention.

[0025] Figure 2 It is another direction installation schematic diagram of the split-type climbing-free device lifting platform of the wind turbine generator set.

[0026] Figure 3 It is a structural schematic diagram of the split-type climbing-free device lifting platform of the wind turbine generator set.

[0027] Figure 4 It is another direction structural schematic diagram of the split-type climbing-free device lifting platform of the wind turbine generator set.

[0028] Figure 5 It is a structural schematic diagram of the roller device.

[0029] Figure 6 It is a structural schematic diagram of the connecting device.

[0030] Description of reference numerals: 1 - ladder; 2 - steel wire rope; 3 - lifting platform; 31 - left side plate; 32 - right side plate; 33 - control system; 34 - roller device; 341 - roller bracket; 342 - connecting buckle; 343 - roller; 35 - connecting device; 351 - connecting rod; 352 - base; 353 - pin; 4 - safety rope. Detailed implementation manners

[0031] Please refer to Figure 1 and Figure 2 , the present invention provides a split - type non - climbing lifting platform for a wind turbine. During installation, the lifting platform 3 is installed on the front of the ladder 1, and the steel wire rope 2 is installed on the back of the ladder 1 through pulley mechanisms located at the upper and lower parts of the ladder. The safety rope 4 is arranged in the middle of the front of the ladder 1, leaving both sides of the crossbeam of the ladder 1, facilitating the normal contact between the hands, feet of the maintenance personnel and the crossbeam of the ladder during manual climbing.

[0032] Please refer to Figure 3 and Figure 4 , the lifting platform includes a left side plate 31, a right side plate 32, a control system 33, a roller device 34 and a connecting device 35. Both the left side plate 31 and the right side plate are in an "L" shape. The vertical section of the "L" is parallel to the ladder 1, and the horizontal section of the "L" is perpendicular to the ladder 1. The left side plate 31 and the right side plate 32 are arranged side by side left and right and are detachably connected into one body through the connecting device 35. There is a gap between the left side plate 31 and the right side plate 32 for the safety rope 4 to pass through. The roller device 34 is fixedly connected to the back of the left side plate 31 and the right side plate 32. The installation positions of the roller device 34 are at the upper and lower parts of the vertical sections of the left side plate 31 and the right side plate 32. The number of the roller devices 34 is four. The control system 33 for controlling the lifting of the platform is installed on the upper part of the front of the left side plate 31.

[0033] Please refer to Figure 5 , the roller device 34 includes a roller bracket 341, rollers 343 and a connecting buckle 342. The roller bracket 341 is in a U shape. One end of the roller bracket 341 is fixedly connected to the back of the left side plate 31 or the right side plate 32. Two rollers 343 are installed side by side on the roller bracket 341 through bearings. The other end of the roller bracket 341 is installed with a connecting buckle 342. The two rollers 343 are respectively in contact with the vertical beams of the ladder 1 to play a guiding role. The connecting buckle 342 allows the steel wire rope 2 to pass through and be fastened, so that the movement of the steel wire rope 2 can drive the left side plate 31 and the right side plate 32 to lift.

[0034] Please refer to Figure 6, the connecting device 35 includes a base 352, a connecting rod 351 and a pin 353. The base 352 is a semi-circular metal block. Four bases 352 are horizontally arranged in a collinear manner as a group. Multiple groups of bases 352 are fixed on the left side plate 31 and the right side plate 32. There is a through hole in the middle of the base 352 to allow the connecting rod 351 to pass through. The connecting rod 351 is a solid rod. One end of the connecting rod 351 is bent so that the connecting rod 351 is in an "L" shape. The other end of the connecting rod 351 is provided with a pin hole for installing the pin 353. The connecting rod 351 can pass through the through hole in the base 352 to connect the left side plate 31 and the right side plate 32 into one body. The pin 353 is installed in the pin hole at the end of the connecting rod 351 to prevent the connecting rod 351 from sliding out of the base 352.

[0035] In addition, the present invention also provides a non-climbing device, which includes the split non-climbing device lifting platform of the above-mentioned wind turbine generator set.

[0036] When the present invention is in use, if the non-climbing device fails and stops running midway, or in other emergency situations, the operation and maintenance personnel can separate the left side plate 31 and the right side plate 32 by pulling out the pin 353, and can push the left side plate 31 and the right side plate 32 to the back of the climbing ladder 1 to make way for the passage of climbing up and down the ladder, so as to achieve the purpose of quickly climbing up and down the nacelle.

[0037] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modifications, equivalent changes or decorations made by those skilled in the art using the disclosed technical content above all fall within the protection scope of the present invention.

Claims

1. A split-type non-climbing lifting platform for a wind turbine unit, characterized in that, It includes a left side plate, a right side plate, a connecting device and a roller device. The left side plate and the right side plate are arranged side by side left and right. The left side plate and the right side plate are detachably connected into one body by several connecting devices. The back surfaces of the left side plate and the right side plate are fixedly connected with a roller device. A steel wire rope drives the left side plate and the right side plate to lift and lower. The roller device includes a roller bracket, rollers and a connecting buckle. The two rollers are respectively in contact with the vertical beams of the climbing ladder to play a guiding role. The connecting buckle allows the steel wire rope to pass through and be fastened, so that the movement of the steel wire rope can drive the left side plate and the right side plate to lift and lower. The connecting device includes a base, a connecting rod and a pin. The base is fixed on the left side plate and the right side plate. There is a through hole in the middle of the base to allow the connecting rod to pass through. The other end of the connecting rod is provided with a pin hole for installing the pin. When the non-climbing device fails and stops running midway, the maintenance personnel can separate the left side plate and the right side plate by pulling out the pin, and can push the left side plate and the right side plate to the back of the climbing ladder to make way for the passage of climbing up and down the ladder.

2. The split - type non - climbing lifting platform for a wind turbine unit according to claim 1, characterized in that, The shapes of the left side plate and the right side plate are both "L" shaped.

3. The split - type non - climbing lifter lifting platform for a wind turbine unit according to claim 1, wherein, There is a gap between the left side plate and the right side plate, and a safety rope is allowed to pass through the gap.

4. The split - type non - climbing lifter lifting platform for a wind turbine unit according to claim 1, characterized in that, The number of the roller devices is four, which are respectively installed at the upper and lower parts of the vertical section of the left side plate, and the upper and lower parts of the vertical section of the right side plate.

5. The split - type non - climbing lifting platform for a wind turbine unit according to claim 1, wherein, The roller bracket is in a U shape. One end of the roller bracket is fixedly connected to the back surface of the left side plate or the right side plate. The two rollers are installed side by side on the roller bracket through bearings. A connecting buckle is installed at the other end of the roller bracket.

6. The split - type non - climbing lifter lifting platform for a wind turbine unit according to claim 1, characterized in that, The base is a semi-circular metal block; The connecting rod is a solid rod body. One end of the connecting rod has a bend so that the connecting rod is in an "L" shape. The connecting rod can pass through the through hole on the base to connect the left side plate and the right side plate into one body; The pin is installed in the pin hole of the connecting rod to prevent the connecting rod from slipping out of the base.

7. The split - type non - climbing lifter lifting platform for a wind turbine unit according to claim 1, characterized in that, The split non-climbing device lifting platform of the wind turbine generator also includes a control system. The control system is installed in the middle of the vertical section of the left side plate or the right side plate to control the lifting of the platform.

8. A climbing-free device, characterized in that, It includes the split non-climbing device lifting platform of the wind turbine generator as claimed in claims 1-7. The steel wire rope is fixedly connected with the split non-climbing device lifting platform of the wind turbine generator and drives the split non-climbing device lifting platform of the wind turbine generator to perform lifting and lowering movements.

9. The free climber according to claim 8, characterized in that, The split non-climbing device lifting platform of the wind turbine generator is installed on the front of the climbing ladder, and the steel wire rope is installed on the back of the climbing ladder.

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