Maintenance and overhaul device for wind power generation tower drum

Abstract

The utility model discloses a wind power generation tower drum maintenance and overhaul device, which relates to the technical field of wind power generation tower drums and comprises two groups of hoisting frames and a tower body, the two groups of hoisting frames are positioned on the outer side of the tower body and are mutually connected and fixed, and two groups of stable guide mechanisms are fixed on the inner side of each group of hoisting frames. And the stable guide mechanism comprises a fixed cylinder, a telescopic cylinder, a spring, a stable frame and a guide wheel. The two groups of hoisting frames are lifted and moved along the tower body, a plurality of groups of guide wheels of a plurality of groups of stable guide mechanisms are always attached to the outer surface of the tower body under the action of springs, and the hoisting frames can be stably lifted and lowered relative to the tower body when moving under the matching of the springs and the guide wheels; therefore, shaking generated in the hoisting process is avoided, meanwhile, the safety risk of maintenance personnel caused by shaking of the hoisting frame is avoided, the problem that the tower body is damaged due to the fact that the hoisting frame shakes and collides with the tower body is avoided, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation towers, in particular to a wind power generation tower maintenance and repair device. Background Art

[0002] A wind turbine is a facility that converts wind energy into electrical energy. It usually consists of a tall tower and multiple blades equipped with wind turbines. When wind blows through the blades of the turbine, the blades begin to rotate, driving the generator to rotate, thereby generating electricity. This technology is widely used in areas with rich wind energy resources. It is a clean and renewable way to generate energy. Wind turbines are usually built on high ground or near the coastline to ensure sufficient wind resources.

[0003] After the wind turbine tower is installed, workers are required to use a maintenance and inspection hoisting frame to perform maintenance and inspection on the surface of the wind turbine tower body. In the prior art, the hoisting frame is only hoisted and lifted by a lifting rope. If shaking occurs during the lifting process, it will cause a certain degree of collision between the hoisting frame and the tower body, which not only affects the safety of the maintenance work, but also causes certain damage to the tower body. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a wind power tower maintenance and inspection device to solve the technical problem that in the prior art, the lifting frame only uses a lifting rope to lift and lower the lifting frame. If shaking occurs during the lifting process, it will cause a certain degree of collision between the lifting frame and the tower body, which not only affects the safety of the maintenance work, but also causes certain damage to the tower body.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wind power tower maintenance and repair device, comprising two sets of hoisting frames and a tower body, wherein the two sets of hoisting frames are located outside the tower body and are connected and fixed to each other;

[0006] Two sets of stable guide mechanisms are fixed inside each set of the hanging frames, and the stable guide mechanisms include a fixed cylinder, a telescopic cylinder, a spring, a stable frame and a guide wheel. The fixed cylinder is fixed to the bottom of the hanging frame, and the telescopic cylinder is located inside the fixed cylinder and is slidably connected to the fixed cylinder. The spring is located between the fixed cylinder and the telescopic cylinder. The stable frame is fixed inside the telescopic cylinder, and two sets of guide wheels are movably connected inside the stable frame from bottom to top.

[0007] The stable guide mechanism also includes a telescopic rod, and the two sides of the telescopic rod are respectively fixedly connected to the telescopic tube and the stable frame. A matching groove corresponding to the stable frame is opened on the surface of the hanging frame, and the stable frame and the matching groove are slidably connected.

[0008] The outer side of the top of the hanging frame is slidably connected with a lifting guardrail, the bottom of the lifting guardrail is fixed with a lifting rod that penetrates the hanging frame, and the outer sides of the bottoms of multiple groups of lifting rods are threadedly connected with multiple groups of fastening nuts, and the fastening nuts are located at the bottom of the hanging frame.

[0009] By adopting the above technical scheme, two groups of semi-circular lifting frames are assembled together to form a circular ring structure located on the outside of the tower body, in which multiple groups of lifting rings are fixedly connected with ropes, thereby driving the two groups of lifting frames to move up and down along the tower body. At the same time, multiple groups of guide wheels of multiple groups of stable guide mechanisms are always in contact with the outer surface of the tower body under the action of springs. With the cooperation of springs and guide wheels, the lifting frame can maintain stable lifting relative to the tower body during movement, thereby avoiding shaking caused by the lifting process, and avoiding safety risks for maintenance personnel caused by shaking of the lifting frame and avoiding damage to the tower body caused by collision between the shaking of the lifting frame and the tower body. The use effect is good.

[0010] Furthermore, a plurality of groups of support rings located outside the fixing tube are fixed at the bottom of the hanging frame, and a plurality of groups of reinforcing plates are fixed between the support rings and the hanging frame.

[0011] By adopting the above technical solution, the support ring plays a role in fixing and supporting multiple groups of stable guide mechanisms, while the reinforcing plate plays a role in increasing the overall strength.

[0012] Furthermore, both ends of the hanging frame are fixed with hanging rings, and the two end surfaces of the two groups of hanging frames are provided with corresponding connecting holes, and the inner walls of the connecting holes are provided with threaded holes.

[0013] By adopting the above technical solution, the lifting ring is easy to be fixedly connected with the lifting rope, and with the cooperation of the connecting hole, the two sets of lifting frames can be fixedly connected to each other to form an integral lifting ring structure located outside the tower body.

[0014] To sum up, the utility model mainly has the following beneficial effects: the utility model assembles two groups of semi-circular lifting frames to form a circular ring structure located on the outside of the tower body, wherein the two groups of lifting frames are fixedly connected by multiple groups of lifting rings and ropes, thereby driving the two groups of lifting frames to move up and down along the tower body. At the same time, multiple groups of guide wheels of multiple groups of stable guide mechanisms are always in contact with the outer surface of the tower body under the action of springs. With the cooperation of springs and guide wheels, the lifting frame can maintain stable lifting relative to the tower body during movement, thereby avoiding shaking caused by the lifting process, and at the same time avoiding safety risks for maintenance personnel caused by shaking of the lifting frame and avoiding damage to the tower body caused by collision of the shaking of the lifting frame with the tower body. The use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall hoisting of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the utility model from the first perspective;

[0017] Figure 3 It is a structural schematic diagram of the utility model from a second viewing angle;

[0018] Figure 4 It is a partial structural schematic diagram of the utility model;

[0019] Figure 5 It is an enlarged cutaway view of the stable guide mechanism of the utility model.

[0020] In the figure: 1. lifting frame; 2. stable guide mechanism; 201. fixed cylinder; 202. telescopic cylinder; 203. spring; 204. telescopic rod; 205. stable frame; 206. guide wheel; 3. support ring; 4. reinforcement plate; 5. lifting ring; 6. matching groove; 7. lifting guardrail; 8. lifting rod; 9. fastening nut; 10. connecting hole; 11. tower body. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0022] The following describes an embodiment of the utility model based on its overall structure.

[0023] A wind power tower maintenance and repair device, such as Figure 1-5 As shown, it includes two sets of hanging frames 1 and a tower body 11, and the two sets of hanging frames 1 are located outside the tower body 11 and are connected and fixed to each other;

[0024] Two sets of stable guide mechanisms 2 are fixed inside each set of hanging frames 1. The stable guide mechanisms 2 include a fixed cylinder 201, a telescopic cylinder 202, a spring 203, a stable frame 205 and a guide wheel 206. The fixed cylinder 201 is fixed to the bottom of the hanging frame 1, and the telescopic cylinder 202 is located inside the fixed cylinder 201 and is slidably connected thereto. The spring 203 is located between the fixed cylinder 201 and the telescopic cylinder 202. The stable frame 205 is fixed inside the telescopic cylinder 202, and two sets of guide wheels 206 are movably connected inside the stable frame 205 from bottom to top.

[0025] The multiple sets of guide wheels 206 of the multiple sets of stable guide mechanisms 2 are always in contact with the outer surface of the tower body 11 under the action of the springs 203. With the cooperation of the springs 203 and the guide wheels 206, the hoisting frame 1 can maintain a stable lifting relative to the tower body 11 when moving.

[0026] Thus, the shaking caused by the hoisting process is avoided, and the safety risk of maintenance personnel caused by the shaking of the hoisting frame 1 is avoided, and the problem of the tower body 11 being damaged due to the collision between the hoisting frame 1 and the tower body 11 is avoided, and the use effect is good;

[0027] The stabilizing guide mechanism 2 further includes a telescopic rod 204, and the two sides of the telescopic rod 204 are respectively fixedly connected to the telescopic cylinder 202 and the stabilizing frame 205. A matching groove 6 corresponding to the stabilizing frame 205 is provided on the surface of the hanging frame 1, and the stabilizing frame 205 and the matching groove 6 are slidably connected.

[0028] The outer side of the top of the hanging frame 1 is slidably connected with a lifting guardrail 7, and a lifting rod 8 that penetrates the hanging frame 1 is fixed at the bottom of the lifting guardrail 7. Multiple sets of lifting rods 8 are threadedly connected to the outer sides of the bottoms of multiple sets of fastening nuts 9, and the fastening nuts 9 are located at the bottom of the hanging frame 1. The lifting guardrail 7 can be raised and lowered to facilitate the staff to enter and exit the interior of the hanging frame 1. At the same time, the lifting rod 8 and the lifting guardrail 7 can be fixedly supported by multiple sets of fastening nuts 9.

[0029] See also Figure 1 , Figure 3 and Figure 4 A plurality of support rings 3 located outside the fixed tube 201 are fixed at the bottom of the hanging frame 1, and a plurality of reinforcing plates 4 are fixed between the support rings 3 and the hanging frame 1. The utility model sets the above structure, wherein the support rings 3 play a role of fixing and supporting the plurality of stable guide mechanisms 2, and the reinforcing plates 4 play a role of increasing the overall strength.

[0030] See also Figure 1 , Figure 2 and Figure 4 , both ends of the lifting frame 1 are fixed with lifting rings 5, and the two end surfaces of the two sets of lifting frames 1 are provided with corresponding connecting holes 10, and the inner walls of the connecting holes 10 are provided with threaded holes. By setting the above structure, the utility model can make the lifting ring 5 easy to be fixedly connected with the lifting rope, and with the cooperation of the connecting holes 10, the two sets of lifting frames 1 can be fixedly connected to each other to form an overall lifting ring structure located outside the tower body 11.

[0031] The working principle of the utility model is as follows: when in use, two sets of semi-circular hanging frames 1 are assembled to form a circular ring structure located outside the tower body 11;

[0032] The end faces of the two sets of hanging frames 1 are provided with a plurality of sets of corresponding connecting holes 10, wherein high-strength bolts are inserted into the connecting holes 10 to connect the two sets of hanging frames 1 stably;

[0033] The multiple sets of lifting rings 5 ​​are fixedly connected with the ropes, and the two sets of lifting frames 1 can be driven to move up and down along the tower body 11. Specifically, the rope winding mechanism is located at the top of the tower body 11, and the rope can be wound and released under the action of the external rope winding mechanism, so as to achieve the purpose of lifting the lifting frame 1;

[0034] At the same time, the multiple sets of guide wheels 206 of the multiple sets of stable guide mechanisms 2 are always in contact with the outer surface of the tower body 11 under the action of the springs 203. With the cooperation of the springs 203 and the guide wheels 206, the hoisting frame 1 can maintain a stable lifting relative to the tower body 11 when moving.

[0035] Thus, the shaking caused by the hoisting process is avoided, and the safety risk of maintenance personnel caused by the shaking of the hoisting frame 1 is avoided, and the problem of the tower body 11 being damaged due to the collision between the hoisting frame 1 and the tower body 11 is avoided, and the use effect is good;

[0036] Furthermore, two sets of guide wheels 206 are movably connected inside the stabilizing frame 205, wherein the two sets of guide wheels 206 form a certain angle with the vertical direction, so that the two sets of guide wheels 206 better fit with the surface of the tower body 11 which is thick at the bottom and thin at the top, thereby forming a stable guiding effect;

[0037] Furthermore, a plurality of support rings 3 cooperating with the stabilizing guide mechanism 2 are fixed at the bottom of the hanging frame 1, wherein the support rings 3 play a role in fixing and supporting the stabilizing guide mechanism 2, and at the same time, with the cooperation of the plurality of reinforcing plates 4, the overall strength of the hanging frame 1 is improved.

[0038] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A wind power tower maintenance and repair device, comprising two sets of hoisting frames (1) and a tower body (11), characterized in that: The two groups of hanging frames (1) are located outside the tower body (11) and are connected and fixed to each other; Two groups of stable guide mechanisms (2) are fixed inside each group of the hanging frames (1). The stable guide mechanisms (2) include a fixed cylinder (201), a telescopic cylinder (202), a spring (203), a stable frame (205) and a guide wheel (206). The fixed cylinder (201) is fixed at the bottom of the hanging frame (1), and the telescopic cylinder (202) is located inside the fixed cylinder (201) and is slidably connected thereto. The spring (203) is located between the fixed cylinder (201) and the telescopic cylinder (202). The stable frame (205) is fixed inside the telescopic cylinder (202), and two groups of guide wheels (206) are movably connected from bottom to top inside the stable frame (205).

2. The wind power tower maintenance and repair device according to claim 1 is characterized in that: The stabilizing guide mechanism (2) further comprises a telescopic rod (204), and two sides of the telescopic rod (204) are respectively fixedly connected to the telescopic cylinder (202) and the stabilizing frame (205).

3. The wind power tower maintenance and repair device according to claim 1 is characterized in that: A plurality of groups of support rings (3) located outside the fixing tube (201) are fixed at the bottom of the hanging frame (1), and a plurality of groups of reinforcing plates (4) are fixed between the support rings (3) and the hanging frame (1).

4. The wind power tower maintenance and repair device according to claim 1 is characterized in that: The top outer side of the hanging frame (1) is slidably connected with a lifting guardrail (7), and the bottom of the lifting guardrail (7) is fixed with a lifting rod (8) that penetrates the hanging frame (1).

5. The wind power tower maintenance and repair device according to claim 4 is characterized in that: The outer sides of the bottoms of the multiple sets of lifting rods (8) are all threadedly connected with multiple sets of fastening nuts (9), and the fastening nuts (9) are located at the bottom of the hanging frame (1).

6. The wind power tower maintenance and repair device according to claim 1, characterized in that: Both ends of the hanging frame (1) are fixed with hanging rings (5), and the two end surfaces of the two sets of hanging frames (1) are provided with corresponding connecting holes (10), and the inner walls of the connecting holes (10) are provided with threaded holes.

7. The wind power tower maintenance and repair device according to claim 1 is characterized in that: A matching groove (6) corresponding to the stabilizing frame (205) is provided on the surface of the hanging frame (1), and the stabilizing frame (205) and the matching groove (6) are slidably connected.

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