An adjustable support device for wind turbine blade maintenance

Abstract

This utility model relates to an adjustable support device for wind turbine blade maintenance, belonging to the field of wind turbine blade maintenance technology. The adjustable support device includes a connecting platform, with a telescopic arm fixedly mounted on the lower side of the connecting platform. A translation platform assembly is slidably mounted on both the front and rear sides of the connecting platform. Multiple sets of guardrails are fixed to the upper side of the connecting platform and the upper side of the translation platform assembly. Some of the guardrails are hinged with gates. A positioning assembly is fixedly mounted at the rear end of the telescopic arm, and a lifting assembly is fixedly mounted on the upper side of the positioning assembly. In this utility model, the translation platform assembly is driven by a first servo motor to rotate a threaded rod, causing the base plate to move left and right. This eliminates the need for frequent adjustments to the entire device, allowing operators to flexibly expand the working range and access more areas of the blade, improving maintenance convenience and flexibility, effectively increasing maintenance efficiency, and reducing the safety risks associated with frequent device adjustments.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine blade maintenance technology, specifically relating to an adjustable support device for wind turbine blade maintenance. Background Technology

[0002] In wind power systems, wind turbine blades are one of the core components for converting wind energy. Exposed to the harsh outdoor environment by wind, rain, and dust, as well as prolonged mechanical operation, they are prone to wear, cracking, and structural damage. If these malfunctions are not repaired promptly, they will directly affect the wind turbine's power generation performance, and in severe cases, lead to turbine shutdown, causing economic losses to wind power operations and even safety accidents. Therefore, timely and effective maintenance of wind turbine blades is a necessary process to ensure the continuous and stable operation of wind power equipment and maintain the healthy development of the wind power industry.

[0003] In some existing wind turbine blade maintenance operations, the operator's working range is relatively limited, making it difficult to flexibly adjust their position to reach different maintenance areas of the blade. Operators often need to adjust the position of the entire support device multiple times. This process is not only cumbersome and time-consuming, but may also pose safety hazards due to frequent adjustments, greatly reducing the convenience and efficiency of maintenance. It cannot meet the requirements of wind turbine blade maintenance for operational flexibility and efficiency. Therefore, there is a need for an adjustable support device for wind turbine blade maintenance. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable support device for wind turbine blade maintenance that is simple in structure and reasonably designed in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] An adjustable support device for wind turbine blade maintenance includes a connecting platform. A telescopic arm is fixedly installed on the lower side of the connecting platform. A translation platform assembly is slidably installed on both the front and rear sides of the connecting platform. Multiple sets of guardrails are fixed on the upper side of the connecting platform and the upper side of the translation platform assembly. Some of the guardrails are hinged with gates, and the gates are equipped with locks. Two sets of trapezoidal supports are fixed to the top of the guardrails on the connecting platform. The same second top plate is fixed to the upper side of the two sets of trapezoidal supports. Multiple sets of fixed pulleys are fixed to the upper side of the second top plate. A positioning assembly is fixedly installed at the rear end of the telescopic arm. A lifting assembly is fixedly installed on the upper side of the positioning assembly.

[0007] As a further optimization of this utility model, the translation platform assembly includes a base plate that slides on the upper side of the front end of the telescopic arm. The base plate has first sliding grooves on both sides, and a threaded rod rotatably passes through the interior of each first sliding groove. A protective shell fixed by bolts is provided on the left side of the base plate. A first servo motor is fixedly installed on the outer side of the protective shell. The output shaft end of the first servo motor passes through the protective shell and is fixedly inserted into the inner side of the threaded rod at the rear end. The threaded rod at the rear end passes through the left side of the base plate and is fixedly sleeved with a main gear. The threaded rod at the front end passes through the left side of the base plate and is fixedly sleeved with a driven gear. A rack belt meshes between the main gear and the driven gear.

[0008] As a further optimization of this utility model, each threaded rod has two threaded short tubes that slide on the thread, and each threaded short tube has a connecting bracket fixed to both ends of the front end of the telescopic arm. A first top plate is fixed on the upper side of the guardrail on the base plate.

[0009] As a further optimization of this utility model, the positioning component includes a bracket plate fixed to the output end of the telescopic arm, two first rollers fixed on the bracket plate, a fixing clamping block fixed on the outer side of the bracket plate, and cylinders fixed at both ends of the bracket plate, with a moving clamping block fixed at the output shaft end of the cylinder.

[0010] As a further optimization of this utility model, a telescopic rod is rotatably connected between the fixed clamping block and the movable clamping block, a rotating rod is rotatably connected to the inner side of the movable clamping block, a second roller is provided at the end of the rotating rod away from the movable clamping block by bolts, and a spring is fixed between the rotating rod and the telescopic rod.

[0011] As a further optimization of this utility model, the lifting assembly includes an embedded block fixed to the upper side of the support plate, a fixed bracket fixed to the upper side of the embedded block, a second servo motor provided on the upper side of the fixed bracket, and a traction rope wheel fixedly sleeved on the output shaft end of the second servo motor.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. In this utility model, the translation platform assembly is driven by a first servo motor to rotate the threaded rod, which moves left and right inside the threaded short tube. This allows the base plate to move left and right on the upper side of the telescopic arm. This allows operators to flexibly adjust their working position without frequently adjusting the position of the entire device when repairing wind turbine blades. This allows them to contact a larger area of ​​the blades, greatly improving the convenience of maintenance, making maintenance work more flexible, effectively improving maintenance efficiency, and also reducing the safety risks that may be caused by frequent adjustments to the device position.

[0014] 2. In this utility model, the positioning component is in contact with the surface of the fan housing during use. The first roller first contacts the fan housing, and then the cylinder drives the telescopic rod to extend and retract, and opens the spring so that the second roller on the rotating rod makes perpendicular contact with the surface of the fan housing. In this way, the device is relatively fixed in position during the lifting process, and it is not easy to sway in mid-air due to factors such as shaking. This provides a stable working environment for the operator, ensures the safety of maintenance work, and allows the operator to focus more on maintenance operations, indirectly improving the quality and efficiency of maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is the utility model Figure 1 A schematic diagram of the side structure;

[0017] Figure 3 This is a view of the trapezoidal bracket of this utility model in conjunction with the second top plate;

[0018] Figure 4 This is a structural schematic diagram of the translation platform assembly of this utility model;

[0019] Figure 5 This is a structural schematic diagram of the positioning component of this utility model.

[0020] In the diagram: 1. Connecting platform; 2. Telescopic arm; 3. Translation platform assembly; 301. Base plate; 302. Threaded rod; 303. First servo motor; 304. Main gear; 305. Driven gear; 306. Rack and pinion belt; 307. Protective housing; 308. Connecting bracket; 309. Threaded short pipe; 4. Guardrail; 5. Fence gate; 6. First top plate; 7. Trapezoidal bracket; 8. Second top plate; 9. Fixed pulley; 10. Lifting assembly; 1001. Embedded block; 1002. Fixed bracket; 1003. Second servo motor; 1004. Traction rope wheel; 11. Positioning assembly; 1101. Bracket plate; 1102. First roller; 1103. Fixed clamping block; 1104. Telescopic rod; 1105. Cylinder; 1106. Moving clamping block; 1107. Rotating rod; 1108. Second roller; 1109. Spring. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example: Figures 1 to 3As shown, an adjustable support device for wind turbine blade maintenance includes a connecting platform 1, which connects to other components and provides support for operators during blade maintenance. A telescopic arm 2 is fixedly installed on the lower side of the connecting platform 1, which moves the connecting platform 1 and other components to the blade to be maintained. Multiple sets of guardrails 4 are fixedly installed on the upper side of the connecting platform 1 and the upper side of the translation platform assembly 3, which protect the operators. Some of the guardrails 4 are hinged with gates 5, which provide an entrance and exit for the operators. The gates 5 are equipped with locks to close the gates and protect the safety of the operators during high-altitude operations. Two sets of trapezoidal brackets 7 are fixed to the top of the guardrails 4 on the connecting platform 1. The same second top plate 8 is fixed to the upper side of the two sets of trapezoidal brackets 7. Multiple sets of fixed pulleys 9 are fixed to the upper side of the second top plate 8. The trapezoidal brackets 7 and the second top plate 8 are used to install the fixed pulleys 9, which cooperate with the pulley assembly on the top of the wind turbine and other components to realize the lifting and lowering of the device.

[0023] like Figure 1 , Figure 2 and Figure 5As shown, a positioning assembly 11 is fixedly installed at the rear end of the telescopic arm 2. The positioning assembly 11 is used to keep the position of the device relatively fixed during the lifting process. The positioning assembly 11 includes a bracket plate 1101 fixed to the output end of the telescopic arm 2. The bracket plate 1101 is used to install other components. Two first rollers 1102 are fixed on the bracket plate 1101. The first rollers 1102 are used to fit against the surface of the fan housing to reduce friction and assist in the lifting process. A fixing clamp 1103 is fixed to the outer side of the bracket plate 1101. Cylinders 1105 are fixed to both ends of the bracket plate 1101. The output shaft end of the cylinder 1105 is fixed. A movable clamping block 1106 is fixed, and a telescopic rod 1104 is rotatably connected to the support of the movable clamping block 1106 and the fixed clamping block 1103. A cylinder 1105 is used to drive the movement of the movable clamping block 1106, and the telescopic rod 1104 adaptively adjusts according to the distance between the movable clamping block 1106 and the fixed clamping block 1103, so that the positioning component 11 fits the fan housing better. A rotating rod 1107 is rotatably connected to the inner side of the movable clamping block 1106. A second roller 1108 is provided at the end of the rotating rod 1107 away from the movable clamping block 1106 and fixed by bolts. A spring 110 is fixed between the rotating rod 1107 and the telescopic rod 1104. 9. In its initial state, spring 1109 causes the telescopic rod 1104 and the rotating rod 1107 to form a small angle. During operation, the rotation of the rotating rod 1107 causes the second roller 1108 to come into contact with the outer wall of the fan. At this time, the angle between the telescopic rod 1104 and the rotating rod 1107 widens, causing spring 1109 to stretch. The principle of elastic potential energy causing the rotating rod 1107 to return to its original position allows the second roller 1108 to fit tightly against the outer wall of the fan. A lifting assembly 10 is fixedly installed on the upper side of the positioning assembly 11. The lifting assembly 10 is used to lift the device into the air. The lifting assembly 10 includes components fixed to the support plate 11. The upper side of the 01 is an embedded block 1001, which is used to install other components. The upper side of the embedded block 1001 is fixed with a fixed bracket 1002, which is used to install the second servo motor 1003. The upper side of the fixed bracket 1002 is provided with the second servo motor 1003, which is used to drive the traction rope wheel 1004 to rotate. The model of the second servo motor 1003 in this utility model is CDM60-200W. The output shaft end of the second servo motor 1003 is fixedly sleeved with the traction rope wheel 1004, which is used to cooperate with the traction rope to realize the lifting and lowering of the device.

[0024] like Figure 1 , Figure 2 and Figure 4As shown, a translation platform assembly 3 is slidably installed on both the front and rear sides of the connecting platform 1. The translation platform assembly 3 is used to allow operators to access a larger area of ​​the blades, facilitating adjustment and maintenance. The translation platform assembly 3 includes a base plate 301 that slides on the upper side of the front end of the telescopic arm 2. The base plate 301 is used to install mounting components and provides support for the operator during operation. First sliding grooves are opened on both sides of the base plate 301. The first sliding grooves are used for the rotation of the threaded rod 302 and the sliding of the threaded short tube 309. The threaded rod 302 rotates through the interior of each first sliding groove. The threaded rod 302 is used to drive the base plate 301 to translate. A protective shell 307 is provided on the left side of the base plate 301 and is fixed by bolts. The protective shell 307 is used to protect the first servo motor 303, main gear 304, and other components. The first servo motor 303 is fixed on the outside of the protective shell 307. The first servo motor 303 is used to drive the rear threaded rod 302 to rotate. The model of the first servo motor 303 in this utility model is HG-KR053. The output shaft of the first servo motor 303 passes through the protective housing 307 and is fixedly inserted into the inner side of the rear threaded rod 302. The rear threaded rod 302 passes through the left side of the base plate 301 and is fixedly sleeved with the main gear 304. The front threaded rod 302 passes through the left side of the base plate 301 and is fixedly sleeved with the driven gear 305. A rack belt 306 meshes between the main gear 304 and the driven gear 305. During the rotation of the main gear 304, the driven gear 305 is driven to rotate through the rack belt 306, thereby driving the front threaded rod 302. The rotation of rod 302 inside the sliding groove, each threaded rod 302 has two threaded short tubes 309 sliding on its threads. The threaded short tubes 309 are used to make the threaded rod 302 drive the base plate 301 to move through the threaded movement. Each threaded short tube 309 has a connecting bracket 308 fixed to both ends of the front end of the telescopic arm 2. The connecting bracket 308 is used to fix the threaded short tube 309. The guardrail 4 on the base plate 301 has a first top plate 6 fixed on its upper side. The first top plate 6 is used to cooperate with the guardrail 4 to protect the operator.

[0025] It should be noted that this adjustable support device for wind turbine blade maintenance is used in a suspended manner to suspend the device in mid-air for the operator to stand and support. The operator first enters the device through the gate 5 set on the connecting platform 1 and closes the structure on the gate 5 to ensure the safety of high-altitude operations. Then, the positioning component 11 is attached to the surface of the wind turbine casing. After the first roller 1102 is attached to the wind turbine casing, the cylinder 1105 drives the telescopic rod 1104 to extend and retract, and pulls the spring 1109 so that the second roller 1108 on the rotating rod 1107 makes perpendicular contact with the surface of the wind turbine casing. This makes the position of the device relatively fixed during the lifting and lowering process, and it is not easy for the device to sway in mid-air due to shaking or other factors.

[0026] After positioning is completed, a pulley assembly is installed on the top of the wind turbine. In conjunction with the fixed pulley 9 and the lifting assembly 10 inside the device, the device is raised to the air. When the specified height is reached, the telescopic arm 2 extends outward with the positioning assembly 11 as the origin, so that the connecting platform 1 and the translation platform assembly 3 are moved to the blade to be repaired. Finally, driven by the first servo motor 303, the threaded rod 302 is rotated, which drives the base plate 301 to move left and right inside the threaded short pipe 309, so that the operator can contact a larger area of ​​the blade, thus making it easier to adjust the repair position.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An adjustable support device for wind turbine blade maintenance, comprising a connecting platform (1), characterized in that, A telescopic arm (2) is fixedly installed on the lower side of the connecting platform (1). A translation platform assembly (3) is slidably installed on both the front and rear sides of the connecting platform (1). Multiple sets of guardrails (4) are fixed on the upper side of the connecting platform (1) and the upper side of the translation platform assembly (3). A gate (5) is hinged between some of the guardrails (4). A lock is installed on the gate (5). Two sets of trapezoidal supports (7) are fixed on the top of the guardrails (4) on the connecting platform (1). The same second top plate (8) is fixed on the upper side of the two sets of trapezoidal supports (7). Multiple sets of fixed pulleys (9) are fixed on the upper side of the second top plate (8). A positioning assembly (11) is fixedly installed at the rear end of the telescopic arm (2). A lifting assembly (10) is fixedly installed on the upper side of the positioning assembly (11).

2. The adjustable support device for wind turbine blade maintenance according to claim 1, characterized in that: The translation platform assembly (3) includes a base plate (301) that slides on the upper side of the front end of the telescopic arm (2). The base plate (301) has first sliding grooves on both sides. A threaded rod (302) is rotatably passed through the interior of each first sliding groove. A protective shell (307) fixed by bolts is provided on the left side of the base plate (301). A first servo motor (303) is fixedly provided on the outer side of the protective shell (307). The output shaft end of the first servo motor (303) passes through the protective shell (307) and is fixedly passed through the inner side of the threaded rod (302) at the rear end. The threaded rod (302) at the rear end passes through the left side of the base plate (301) and is fixedly sleeved with a main gear (304). The threaded rod (302) at the front end passes through the left side of the base plate (301) and is fixedly sleeved with a driven gear (305). A rack belt (306) meshes between the main gear (304) and the driven gear (305).

3. The adjustable support device for wind turbine blade maintenance according to claim 2, characterized in that: Each threaded rod (302) has two threaded short tubes (309) that slide on the thread. Each threaded short tube (309) has a connecting bracket (308) fixed to the outer side of the front end of the telescopic arm (2). A first top plate (6) is fixed on the upper side of the guardrail (4) on the base plate (301).

4. The adjustable support device for fan blade repair of claim 1, wherein: The positioning component (11) includes a bracket plate (1101) fixed to the output end of the telescopic arm (2). Two first rollers (1102) are fixed on the bracket plate (1101). A fixing clamp (1103) is fixed on the outer side of the bracket plate (1101). A cylinder (1105) is fixed at both ends of the bracket plate (1101). A moving clamp (1106) is fixed at the output shaft end of the cylinder (1105).

5. An adjustable support device for use in the repair of a wind turbine blade according to claim 4, characterised in that: A telescopic rod (1104) is rotatably connected between the fixed clamping block (1103) and the movable clamping block (1106). A rotating rod (1107) is rotatably connected to the inner side of the movable clamping block (1106). A second roller (1108) is provided at the end of the rotating rod (1107) away from the movable clamping block (1106) by bolts. A spring (1109) is fixed between the rotating rod (1107) and the telescopic rod (1104).

6. The adjustable support device for fan blade repair of claim 1, wherein: The lifting assembly (10) includes an embedded block (1001) fixed on the upper side of the support plate (1101), a fixed bracket (1002) fixed on the upper side of the embedded block (1001), a second servo motor (1003) is provided on the upper side of the fixed bracket (1002), and a traction rope wheel (1004) is fixedly sleeved on the output shaft end of the second servo motor (1003).

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