Full-height flexible braking wind driven generator operation and maintenance lifting device

Abstract

The invention belongs to the technical field of wind driven generator assembly, and discloses a full-height flexible braking wind driven generator operation and maintenance lifting device which comprises a base, a wind driven generator pipe column is fixedly arranged at the top end of the base, a lifting vertical pipe is fixedly arranged in the base, and a generator is fixedly arranged at the top end of the wind driven generator pipe column. Fan blades are fixedly arranged at the output end of the power generator, and a lifting assembly is further arranged in the lifting vertical pipe; the lifting assembly comprises a lifting block located at the position of a cavity in the middle of the lifting vertical pipe, and a pulley with a self-driving structure is arranged in the lifting assembly, so that accessories can be directly conveyed to the position of a generator through the lifting block which moves upwards on the base and the inner wall of a tubular column of the wind driven generator. The accessory is lifted out from the interior through the top end which is not closed, the influence of the external environment on the accessory can be avoided, the inconvenience of hoisting the accessory by a crane can be avoided, and rapid lifting and assembling of the structural accessory are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of wind turbine generator assembly, and in particular relates to a full-height flexible braking wind turbine generator operation and maintenance lifting device. Background Art

[0002] A wind turbine converts the mechanical energy generated by a wind wheel into electrical energy. The generator can be a synchronous generator or an asynchronous generator. A variety of systematic structures such as a control system, a pitch system, and a yaw system are arranged inside the wind turbine. During the installation and construction process, the installation accessories need to be lifted. Since the accessories are small, the transportation convenience of small structural items using a crane is poor, which affects the lifting and lowering of the accessories.

[0003] At the same time, a wind turbine tower crane installation system with application number CN202311416097.X "includes a load-bearing frame, which is wrapped around the outside of the tower, and a tower crane installation seat is arranged on one side of the load-bearing frame; a driving device, which provides power for the load-bearing frame to move in the vertical direction along the outer wall of the tower; a guiding device, which is used to guide the load-bearing frame when it moves; a fastening device, which fixes the load-bearing frame at a set position; wherein the driving device includes a pulley, a steel wire rope and a power unit, the pulley is fixed to the bottom of the cabin, one end of the steel wire rope passes through the pulley to connect to the load-bearing frame, and the other end is connected to the power unit; the guiding device is provided with a guide wheel abutting against the outer wall of the tower; the fastening device is provided with a pressure block for pressing the outer wall of the tower; the power unit tightens or releases the steel wire rope, and drives the load-bearing frame to move to the set position under the guidance of the guide wheel, and fixes the load-bearing frame by pressing the outer wall of the tower by the pressure block"; At the same time, the application number is CN202410427034.2, which is a support device for installing a wind turbine impeller. "It includes a construction platform, a support assembly, a scissor lift assembly, a hydraulic leveling assembly and a mounting frame; a support assembly is arranged at the bottom of the construction platform, the upper end of the support assembly is fixedly connected to the construction platform, a mounting frame is installed on the construction platform, the upper end of the mounting frame clamps the hub of the impeller and drives the hub to rotate through the toothed structure engagement; the support assembly includes a telescopic frame and a mounting plate, the scissor lift assembly is fixedly arranged on the mounting plate, the upper end of the scissor lift assembly is fixedly connected to the construction platform, and the telescopic frame and the scissor lift assembly are synchronously extended and retracted; a hydraulic leveling assembly is rotatably arranged on the lower surface of the mounting plate, and the hydraulic leveling assembly adjusts the construction platform to a horizontal state through the action of the second hydraulic cylinder." During use, the above-mentioned wind turbine installation structure uses relatively large structural accessories as the supporting and transporting structure. However, for some smaller accessories used in the installation of wind turbines, such as the installation of various parts in the control system and the pitch system, the use of a crane not only wastes lifting resources, but also causes the smaller accessories to be lifted and transported. During the operation, due to the large counterweight on the head of the crane, it is generally difficult for construction workers to lift the accessories lifted by the lifting end of the crane, which may even affect the lifting of the structural accessories.

[0004] Therefore, in order to solve the above problems, a full-height flexible braking wind turbine operation and maintenance improvement device is proposed. Summary of the invention

[0005] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a full-height flexible braking wind turbine operation and maintenance lifting device, which has a miniaturized structural design and can be directly placed inside the pipe column. It can be directly lifted in the internal cavity, which is easy to operate and can be taken without any large structure affecting the use of accessories.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a full-height flexible braking wind turbine operation and maintenance lifting device, comprising a base, a wind turbine pipe column is fixedly arranged at the top of the base, a lifting riser is fixedly arranged inside the base, a generator is fixedly arranged at the top of the wind turbine pipe column, a fan blade is fixedly arranged at the output end of the generator, and a lifting assembly is also included inside the lifting riser; The lifting assembly includes a lifting block located in the middle cavity of the lifting riser, side arms are rotatably provided on both the front and rear sides of the lifting block, pulleys driven by a servo motor and in contact with the inner wall of the lifting riser are rotatably provided at the ends of the side arms, and an accessory storage assembly is also provided at the top of the lifting block; The accessory storage assembly includes a hydraulic telescopic shaft three fixedly arranged inside the top of the lifting block, a limit ring is fixedly arranged on the top of the hydraulic telescopic shaft three, a placement box is fixedly arranged inside the limit ring, and plug plates are embedded on both sides of the limit ring.

[0007] Preferably, a slide groove is provided inside the side arm, and the slide groove is arranged in a T shape.

[0008] Preferably, a hydraulic telescopic shaft 1 is fixedly provided at the bottom end of the lifting block, an intermediate block is penetrated through the outer side of the hydraulic telescopic shaft 1, a guide block sliding with the side arm is fixedly provided on the outer side of the intermediate block, and the guide block is slidably provided inside the slide groove.

[0009] Preferably, a screw is fixedly provided at the bottom end of the hydraulic telescopic shaft 1, a support nut is spirally provided on the outer side of the screw, and a spring 1 which is sleeved with the screw is fitted on the top end of the support nut.

[0010] Preferably, a test probe is fixedly provided at the bottom end of the screw rod, and the test probe is electrically connected to the lifting block and the second hydraulic telescopic shaft.

[0011] Preferably, a positioning ring is fixedly provided at the top end of the limiting ring, and a baffle which fits with the placing box is rotatably provided at the top end of the positioning ring.

[0012] Preferably, a plurality of insertion holes are provided on the surface of the plug board, and the shapes of the insertion holes include circular, triangular and square.

[0013] Preferably, the two sides of the plane of the lifting block also include auxiliary positioning components; The auxiliary positioning assembly includes dampers fixedly arranged on both sides of the lifting block, the other end of the damper is fixedly provided with a spring steel ring that fits the inner wall of the lifting riser, and the outer side of the damper is sleeved with a spring 2 that fits the spring steel ring.

[0014] Preferably, a folding belt is embedded in the inner wall of the spring steel ring, the spring steel ring is made of elastic arc steel, and the folding belt is configured as an elastic block with teeth grooves opened outwardly.

[0015] Preferably, a rotating shaft is rotatably arranged inside the end of the spring steel ring, a traction belt is fixedly arranged between the two rotating shafts, and the traction belt is arranged as an elastic deformation belt.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses a pulley with a self-driving structure in the lifting assembly to directly send the accessories to the generator position through the lifting block that moves upward on the base and the inner wall of the wind turbine column, and takes the accessories out from the inside through the unclosed top end, which can avoid the influence of the external environment on the accessories and the inconvenience of lifting the accessories by a crane, thereby ensuring the rapid lifting and assembly of the structural accessories.

[0017] 2. The present invention uses the plug-in board and the placement box structure in the accessory storage assembly to directly store accessories in the placement box and the plug-in board, and the carried accessories are stored in partitions and arranged in a position that is easy to access, making it more convenient to use.

[0018] 3. The present invention cooperates with the spring steel ring structure in the auxiliary positioning component. During the rising process of the lifting component, the spring steel rings arranged on both sides can fit the inner wall of the wind turbine column. After rising along the inner wall, the stability of movement is maintained to reduce the risk of falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the installation structure of the base of the present invention; Figure 3 This is a schematic diagram of the installation structure of the lifting assembly of the present invention; Figure 4 It is a schematic diagram of the installation structure of the lifting assembly of the present invention when viewed from above; Figure 5 It is a schematic diagram of the installation structure of the accessory storage assembly of the present invention; Figure 6 It is a schematic diagram of the installation structure of the auxiliary positioning component of the present invention.

[0020] In the figure: 1, base; 2, wind turbine pipe column; 3, generator; 4, fan blades; 5. Lifting assembly; 51. Lifting block; 52. Hydraulic telescopic shaft 1; 53. Intermediate block; 54. Hydraulic telescopic shaft 2; 55. Guide block; 56. Side arm; 57. Pulley; 58. Slide; 59. Screw; 510. Support nut; 511. Test probe; 512. Spring 1; 6. Accessory storage assembly; 61. Hydraulic telescopic shaft three; 62. Limiting ring; 63. Positioning ring; 64. Placement box; 65. Baffle; 66. Insert plate; 67. Socket; 7. Auxiliary positioning assembly; 71. Damper; 72. Spring 2; 73. Spring steel ring; 74. Folding belt; 75. Card holder; 76. Rotating shaft; 77. Traction belt; 8. Lifting riser. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0023] like Figures 1 to 6As shown, the present invention provides a full-height flexible braking wind turbine operation and maintenance lifting device, including a base 1, a wind turbine pipe column 2 is fixedly arranged at the top of the base 1, a lifting riser 8 is fixedly arranged inside the base 1, and the addition of the lifting riser 8 structure can effectively prevent the lifting component 5 from avoiding the ladder structure inside the base 1 during the lifting process, a generator 3 is fixedly arranged at the top of the wind turbine pipe column 2, and the fan blades 4 at the end of the generator 3 rotate to convert wind energy into electrical energy, and the electrical energy is converted into the battery, the output end of the generator 3 is fixedly provided with the fan blades 4, and the lifting riser 8 also includes a lifting component 5 inside; The lifting assembly 5 includes a lifting block 51 located in the middle cavity of the lifting riser 8. Side arms 56 are rotatably provided on both the front and rear sides of the lifting block 51. A pulley 57 driven by a servo motor and in contact with the inner wall of the lifting riser 8 is rotatably provided at the end of the side arm 56. The servo motor can drive the pulley 57 to move upward on the inner wall of the wind turbine pipe column 2 in contact with the lifting operation to complete the lifting operation. The internal lifting method is faster and can also avoid the influence of the external environment on the accessories. The top of the lifting block 51 also includes an accessories storage assembly 6; The accessory storage assembly 6 includes a hydraulic telescopic shaft three 61 fixedly arranged inside the top of the lifting block 51. The hydraulic telescopic shaft three 61 can push the upper limit ring 62 structure to rise, so as to access the internal structural accessories, and the operation is convenient. A limit ring 62 is fixedly arranged on the top of the hydraulic telescopic shaft three 61, and a placement box 64 is fixedly arranged inside the limit ring 62 to store some smaller parts, such as screws, nuts, etc., and plug plates 66 are embedded on both sides of the interior of the limit ring 62. The added plug plate 66 structure can provide a support point for the storage of accessories.

[0024] Specifically, a slide groove 58 is provided inside the side arm 56, and the slide groove 58 is set in a T shape. A hydraulic telescopic shaft 1 52 is fixedly provided at the bottom end of the lifting block 51, and an intermediate block 53 is provided on the outer side of the hydraulic telescopic shaft 1 52. A guide block 55 sliding with the side arm 56 is fixedly provided on the outer side of the intermediate block 53. The guide block 55 is connected to the hydraulic telescopic shaft 2 54 to achieve a stabilizing effect. When the hydraulic telescopic shaft 2 54 expands to both sides, the side arm 56 is pushed against the inner wall, and the guide block 55 is slidably provided inside the slide groove 58. A screw 59 is fixedly provided at the bottom end of the hydraulic telescopic shaft 1 52, and a support nut 510 is spirally provided on the outer side of the screw 59. The support nut 510 is rotated 510 moves on the outside of the screw rod 59 and can move to the outside of the screw rod 59, such as: below the middle block 53, and is supported between the support nut 510 and the middle block 53 by a spring 512, which provides a shock-absorbing effect while maintaining the effect of lifting the middle block 53. The top of the support nut 510 is fitted with a spring 512 that is sleeved with the screw rod 59, and a test probe 511 is fixedly provided at the bottom end of the screw rod 59, and the test probe 511 is electrically connected to the lifting block 51 and the hydraulic telescopic shaft 2 54. The test probe 511 monitors the distance movement, and when a large range of rapid movement occurs, the hydraulic telescopic shaft 2 54 can be controlled to perform emergency braking.

[0025] A positioning ring 63 is fixedly provided on the top of the limiting ring 62, and a baffle 65 that fits with the placement box 64 is rotatably provided on the top of the positioning ring 63. The baffle 65 structure can serve as a storage structure of the placement box 64 to seal the screws and other objects placed therein to avoid loss. A plurality of sockets 67 are provided on the surface of the plug plate 66, and the shapes of the sockets 67 are circular, triangular and square. Sockets 67 of different shapes can simultaneously hold a variety of different tools for lifting.

[0026] The lifting block 51 also includes auxiliary positioning components 7 on both sides of the plane; The auxiliary positioning assembly 7 includes a damper 71 fixedly arranged on both sides of the lifting block 51, and a spring steel ring 73 that fits the inner wall of the lifting riser 8 is fixedly arranged on the other end of the damper 71. The spring steel ring 73 structure can be used as a tightening structure to maintain the stability of the lifting block 51 during the rising process. A spring second 72 that fits the spring steel ring 73 is sleeved on the outer side of the damper 71. The damper 71 pushes the spring ring 73 to fit tightly against the inner wall of the lifting riser 8 in the base 1 through the spring second 72. A folding belt 74 is embedded in the inner wall of the spring steel ring 73. The spring steel ring 73 is made of elastic arc steel. The folding belt 74 is set as an elastic block with teeth and grooves opened outwardly. A rotating shaft 76 is rotatably set inside the end of the spring steel ring 73. A traction belt 77 is fixedly set between the two rotating shafts 76, and the traction belt 77 is set as an elastic deformation belt. The deformable traction belt 11 pulls and converges the two rotating shafts 76 to keep the spring steel ring 73 taut to prevent the spring steel ring 73 from falling off.

[0027] Among them, the wind turbine column 2, the generator 3 and the battery module for storing the converted electrical energy are existing technologies and will not be described in detail; at the same time, the present invention also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail.

[0028] The wiring diagram of the motor in the present invention is common knowledge in the art, and its working principle is a known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the motor are no longer explained in detail.

[0029] The working principle of the technical solution provided by the present invention is as follows: When the construction personnel are installing the wind turbine, they place the accessories that need to be lifted into the plug plate 66 and the placement box 64 of the accessory storage assembly 6. They can open the baffle 65 structure and place the screws into the placement box 64 located on the limit ring 62 for storage. The baffle 65 is rotated for shielding. For some larger structures, their rod structures can be inserted into the plug hole 67 of the plug plate 66 for storage. In order to prevent them from being lost or dropped, the switch door set on the side of the base 1 is opened, and the lifting assembly 5 is placed into the lifting riser 8 channel inside the base 1. The pulley 57 located at the end of the side arm 56 is driven by the servo motor to rotate. The support nut 510 rotating on the outside of the screw 59 is pushed, and the spring 1 512 pushes the middle block 53 located on the outside of the screw 59. At the same time, the guide block 55 connected by the hydraulic telescopic shaft 2 54 is Move inside the slide groove 58 of the side arm 56, push the pulley 57 at the end of the side arm 56 to fit tightly against the inside of the lifting riser 8, and start to slide upward, in cooperation with the auxiliary positioning component 7 located on the outside of the lifting block 51, wherein the spring steel ring 73 can push the spring steel ring 73 tightly through the spring 2 72 on the outside of the damper 71, and cooperate with the folding belt 74 embedded in the spring steel ring 73 to maintain a position close to the inner wall. During the lifting process of the lifting block 51, the spring steel ring 73 can assist in fitting the inner cavity of the wind turbine pipe column 2 to rise, reducing the risk of the lifting block 51 being deflected, and the stability of transporting accessories is higher. At the same time, after lifting to the top of the lifting riser 8, the accessories in the accessory storage component 6 can be taken out from the top side of the wind turbine pipe column 2 to assemble the system accessories, and the overall structure improves stability and the convenience of taking accessories is greatly improved.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A full-height flexible braking wind turbine operation and maintenance lifting device, comprising a base (1), characterized in that: A wind turbine pipe column (2) is fixedly arranged at the top of the base (1), a lifting riser (8) is fixedly arranged inside the base (1), a generator (3) is fixedly arranged at the top of the wind turbine pipe column (2), a fan blade (4) is fixedly arranged at the output end of the generator (3), and a lifting assembly (5) is also included inside the lifting riser (8); The lifting assembly (5) comprises a lifting block (51) located in the middle cavity of the lifting standpipe (8), side arms (56) are rotatably provided on both the front and rear sides of the lifting block (51), a pulley (57) driven by a servo motor and in contact with the inner wall of the lifting standpipe (8) is rotatably provided at the end of the side arm (56), and the top of the lifting block (51) also comprises an accessory storage assembly (6); The accessory storage assembly (6) comprises a hydraulic telescopic shaft three (61) fixedly arranged inside the top end of the lifting block (51), a limit ring (62) fixedly arranged at the top end of the hydraulic telescopic shaft three (61), a placement box (64) fixedly arranged inside the limit ring (62), and plug plates (66) embedded on both sides of the inside of the limit ring (62).

2. The full-height flexible braking wind turbine operation and maintenance lifting device according to claim 1 is characterized in that: A slide groove (58) is provided inside the side arm (56), and the slide groove (58) is arranged in a T-shape.

3. The full-height flexible braking wind turbine operation and maintenance lifting device according to claim 1 is characterized in that: A hydraulic telescopic shaft (52) is fixedly provided at the bottom end of the lifting block (51), an intermediate block (53) is provided through the outer side of the hydraulic telescopic shaft (52), a guide block (55) sliding with the side arm (56) is fixedly provided on the outer side of the intermediate block (53), and the guide block (55) is slidably provided inside the slide groove (58).

4. The full-height flexible braking wind turbine operation and maintenance lifting device according to claim 3 is characterized in that: A screw rod (59) is fixedly provided at the bottom end of the hydraulic telescopic shaft (52), a support nut (510) is spirally provided on the outer side of the screw rod (59), and a spring (512) sleeved with the screw rod (59) is fitted at the top end of the support nut (510).

5. The full-height flexible braking wind turbine operation and maintenance lifting device according to claim 4 is characterized in that: A test probe (511) is fixedly arranged at the bottom end of the screw rod (59), and the test probe (511) is electrically connected to the lifting block (51) and the second hydraulic telescopic shaft (54).

6. The full-height flexible braking wind turbine operation and maintenance lifting device according to claim 1 is characterized in that: A positioning ring (63) is fixedly provided at the top end of the limiting ring (62), and a baffle (65) that fits the placement box (64) is rotatably provided at the top end of the positioning ring (63).

7. The full-height flexible braking wind turbine operation and maintenance lifting device according to claim 1 is characterized in that: A plurality of insertion holes (67) are provided on the surface of the insertion plate (66), and the shapes of the insertion holes (67) include circular, triangular and square shapes.

8. The full-height flexible braking wind turbine operation and maintenance lifting device according to claim 1 is characterized in that: The lifting block (51) also includes auxiliary positioning components (7) on both sides of the plane; The auxiliary positioning assembly (7) comprises a damper (71) fixedly arranged on both sides of the lifting block (51), a spring steel ring (73) fixedly arranged at the other end of the damper (71) and fitted with the inner wall of the lifting riser (8), and a spring second (72) fitted with the spring steel ring (73) is sleeved on the outer side of the damper (71).

9. The full-height flexible braking wind turbine operation and maintenance lifting device according to claim 8 is characterized in that: A folding belt (74) is embedded in the inner wall of the spring steel ring (73); the spring steel ring (73) is made of elastic arc-shaped steel; and the folding belt (74) is configured as an elastic block with teeth grooves opened outwards.

10. The full-height flexible braking wind turbine operation and maintenance lifting device according to claim 8 is characterized in that: A rotating shaft (76) is rotatably arranged inside the end of the spring steel ring (73), a traction belt (77) is fixedly arranged between the two rotating shafts (76), and the traction belt (77) is configured as an elastic deformation belt.

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