Maintenance auxiliary device for wind power generation

Abstract

The invention discloses a maintenance assisting device for wind power generation, relates to the technical field of maintenance assisting, and aims to solve the technical problems that the maintenance position is troublesome to adjust and blades are difficult to effectively and comprehensively maintain, the maintenance assisting device comprises a wind power generator, the wind power generator comprises a tower drum, and the circumferential outer wall of the tower drum is sleeved with an auxiliary lifting mechanism; the auxiliary lifting mechanism comprises a first operation table, a multi-layer telescopic operation table is arranged above the first operation table, a plurality of multi-stage oil cylinders are arranged above the first operation table, the output ends of the multi-stage oil cylinders are connected with push plates, a control cylinder is arranged at the top of the first operation table, and the multi-layer telescopic operation table comprises a second operation table, a third operation table and a fourth operation table. The blade maintenance device has the advantages that an operator can adjust the position of the operator through the operation table of the step-shaped structure, and maintenance operation can be conducted on different areas of a blade.

Description

Technical Field

[0001] The present invention relates to the field of maintenance assistance technology, and more specifically, to a maintenance assistance device for wind power generation. Background Art

[0002] The maintenance of wind power generation is crucial to ensure the efficient, stable and safe operation of wind turbines. Blades are key components of wind turbines to capture wind energy. Good maintenance of blades is conducive to ensuring the stability of wind power generation systems. It is usually necessary to regularly clean dirt on the surface of blades, such as dust, bird droppings, etc. These dirts will affect the aerodynamic performance of the blades and reduce the power generation efficiency.

[0003] Many wind turbine towers are equipped with vertical ladders, which are generally fixed to the inner wall of the tower. The operator climbs up to the cabin by climbing the vertical ladder and carrying the necessary tools and safety equipment. The operator is suspended by a safety rope around the blade to perform maintenance operations on the blade. Although this method is simple, it requires the operator to constantly adjust the height of the safety rope to achieve maintenance of blades at different heights. During the maintenance process, the maintenance equipment carried by the operator is likely to burden the operator, making it more troublesome to adjust the maintenance position and difficult to effectively perform comprehensive maintenance on the blade. In view of this, we propose a maintenance auxiliary device for wind power generation. Summary of the invention

[0004] The object of the present invention is to provide a maintenance auxiliary device for wind power generation to solve the technical problem that it is troublesome to adjust the maintenance position and it is difficult to effectively perform comprehensive maintenance on the blades.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a maintenance auxiliary device for wind power generation, comprising a wind turbine, the wind turbine comprising a tower, the circumferential outer wall of the tower being sleeved with an auxiliary lifting mechanism, the auxiliary lifting mechanism comprising a first operating platform, a multi-layer telescopic operating platform being arranged above the first operating platform; a plurality of multi-stage oil cylinders are arranged above the first operating platform, a push plate is connected to the output end of the multi-stage oil cylinder, and a control cylinder is arranged on the top of the first operating platform; the multi-layer telescopic operating platform comprises a second operating platform, a third operating platform and a fourth operating platform; the top of the second operating platform is movably matched with the bottom of the third operating platform, the top of the third operating platform is movably matched with the bottom of the fourth operating platform, the top of the push plate is movably matched with the bottom of the fourth operating platform, and the second operating platform is , the third operating platform and the fourth operating platform are movably sleeved on the circumferential outer wall of the control cylinder; the circumferential outer wall of the control cylinder is provided with a first adjustment groove, a second adjustment groove and a third adjustment groove; the circumferential inner wall of the second operating platform is connected with a first boss, one end of the first boss is movably arranged in the first adjustment groove, the circumferential inner wall of the third operating platform is connected with a second boss, one end of the second boss is movably arranged in the second adjustment groove, the circumferential inner wall of the fourth operating platform is connected with a third boss; one end of the third boss is movably arranged in the third adjustment groove; a clamping assembly is arranged inside the first operating platform, the clamping assembly includes a driving assembly, the driving assembly is used to drive the auxiliary lifting mechanism to lift and lower on the circumferential outer wall of the tower, and the clamping assembly is used to form a clamping effect on the circumferential outer wall of the tower.

[0006] Preferably, a toothed plate is arranged on the circumferential outer wall of the tower, and the tower presents a conical column structure from the bottom to the top.

[0007] Preferably, the first operating platform includes a bottom plate and a top plate, and the bottom plate and the top plate are connected by a plurality of connecting plates; the bottom plate and the top plate are provided with the same circular holes from top to bottom, and the bottom plate and the top plate are movably cooperated with the tower through the circular holes; the top surface of the bottom plate is arranged with a first step and a plurality of half-circle plates, the top surface of the top plate is arranged with a second step and a supporting ring block, and the control cylinder is arranged on the top of the supporting ring block; a plurality of the multi-stage cylinders are arranged on the top of the bottom plate and pass through the top of the top plate, and the clamping assembly is arranged between the bottom plate and the top plate.

[0008] Preferably, the clamping assembly includes an adjustment ring plate arranged on the top of the half-circle plate, the bottom surface of the adjustment ring plate is provided with an annular groove, and the adjustment ring plate is rotatably matched with the top of the half-circle plate through the annular groove; the circumferential side wall of the adjustment ring plate is arranged with a plurality of tooth openings, and the adjustment ring plate is provided with a plurality of arc grooves from top to bottom, and the plurality of arc grooves are arranged in an annular array; the clamping assembly also includes a motor 1 and a fixed frame arranged on the top of the bottom plate, the output end of the motor 1 is connected to a worm 1, the output end of the worm 1 is meshingly connected to a worm wheel 1, and the worm wheel 1 A gear 1 is coaxially connected, and the output end of the gear 1 is meshed with the tooth gap, and the worm gear 1 and the gear 1 are rotatably arranged in the fixed frame; the clamping assembly also includes a plurality of limit plates arranged on the top of the base plate, and a sliding channel is formed between the side walls of every two limit plates, and a moving block 1 is slidably arranged in the sliding channel, and a sliding column 1 is arranged on the top surface of the moving block 1, and the upper end of the sliding column 1 is arranged in the arc groove, and a plurality of rollers are arranged on one side wall of the moving block; wherein, there are a plurality of moving blocks 1, and the plurality of moving blocks 1 are arranged in a ring array.

[0009] Preferably, the driving assembly includes a moving block 2 slidably arranged in one of the sliding channels, a sliding column 2 is arranged on the top of the moving block 2, and the upper end of the sliding column 2 is arranged in the arc groove; a gear 2 is rotatably arranged on the side wall of the moving block 2, and the gear 2 is coaxially connected with a worm gear 2, and a motor 2 is arranged on the other side wall of the moving block 2, and a worm gear 2 is connected to the output end of the motor 2, and the output end of the worm gear 2 is meshingly connected to the worm gear 2, and the output end of the gear 2 is meshingly connected to the toothed plate.

[0010] Preferably, the second operating table includes a first finger-shaped table, the side wall of the first finger-shaped table is connected to a flexible plate through a spring, and the flexible plate is a curved plate structure made of flexible material; the top of the second operating table is connected to a first supporting ring plate, and the top of the first supporting ring plate is integrally formed with a first clamping plate, and the top of the second operating table is also arranged with a third step ladder.

[0011] Preferably, the third operating table includes a second finger-shaped table, and the second finger-shaped table and the first finger-shaped table are arranged with the same structural components; the bottom of the third operating table is connected to a first annular pull plate, and a plurality of first pulleys are arranged on the inner side wall of the first annular pull plate, and the plurality of first pulleys are distributed in an annular array, and the first annular pull plate is arranged below the first clamping plate, and the bottom of the third operating table is movably matched with the top of the second operating table through the first annular pull plate; the top of the third operating table is connected to a second supporting ring plate, and the top of the second supporting ring plate is integrally formed with a second clamping plate, and a fourth step is also arranged on the top of the third operating table.

[0012] Preferably, the fourth operating table includes a third finger-shaped table, and the third finger-shaped table and the first finger-shaped table are arranged with the same structural components; a second annular pull plate is connected to the bottom of the fourth operating table, and a plurality of second pulleys are arranged on the inner side wall of the second annular pull plate, and the plurality of second pulleys are distributed in an annular array, and the second annular pull plate is arranged below the second clamping plate, and the bottom of the fourth operating table is movably cooperated with the top of the third operating table through the second annular pull plate; a ladder groove is provided on the top surface of the fourth operating table from top to bottom, and the ladder groove is used to provide a use space for the fourth step ladder; an arc-shaped slide groove is provided on the bottom surface of the fourth operating table.

[0013] Preferably, the push plate is an arc-shaped plate-like structure, and an arc-shaped strip is integrally formed on the top of the push plate, and the arc-shaped strip is slidably matched with the arc-shaped sliding groove.

[0014] Preferably, the first adjustment slot, the second adjustment slot and the third adjustment slot are arc-shaped structures offset upward, the offset directions of the first adjustment slot and the third adjustment slot are the same, and the offset directions of the first adjustment slot and the second adjustment slot are opposite.

[0015] A method for using a maintenance auxiliary device for wind power generation comprises the following steps:

[0016] S1, pre-processing operation, controlling the blades of the wind turbine to stop rotating, so that the blades and the tower are kept in the same vertical plane as much as possible;

[0017] S2, lifting operation, the operator carries the maintenance equipment to the first operating platform, drives the worm gear 2 to rotate through the motor 2, and the worm gear 2 drives the worm wheel 2 and the gear 2 to rotate. During the rotation of the gear 2, the toothed plate along the circumferential outer wall of the tower rolls upward, thereby driving the auxiliary lifting mechanism to move upward. During the movement, the worm gear 1 is driven to rotate by the motor 1, and the worm gear 1 drives the worm wheel 1 and the gear 1 to rotate. The gear 1 drives the adjusting ring plate to rotate around the top of the fixed ring plate through the tooth mouth. The multiple sliding columns 1 move in the multiple arc grooves respectively, thereby driving the multiple moving blocks 1 to slide in the sliding channel, so that the rollers on the side walls of the multiple moving blocks are always in contact with the circumferential outer wall of the tower of the conical column structure, forming a clamping effect on the tower. Similarly, the moving block 2 always drives the gear 2 to fit the side wall of the toothed plate, and always maintains a meshing connection relationship with the toothed plate, so that the lifting process of the auxiliary lifting mechanism is stable and reliable;

[0018] S3, for the blade clamping and straightening operation, the auxiliary lifting mechanism rises to the upper end of the tower and then stops, and two multi-stage oil cylinders perform extended range motion to drive the push plate to rise to the bottom of the fourth operating platform, so that the arc-shaped strip plate on the top of the push plate is inserted into the arc-shaped slide groove, and the push plate pushes the fourth operating platform to rise. During the rising process of the fourth operating platform, the second annular pull plate at its bottom gradually approaches the bottom of the second clamping plate of the third operating platform, until the tops of the multiple second pulleys on the inner side wall of the second annular pull plate contact the bottom of the second clamping plate and drive the second clamping plate to rise, that is, drive the third operating platform to rise. Similarly, the The third operating platform drives the second operating platform to rise through the first annular pull plate at the bottom thereof. During the rising process of the second, third and fourth operating platforms, the first protrusion of the second operating platform slides upward along the first adjustment groove, driving the second operating platform to form a rotational rising motion. Similarly, the third and fourth operating platforms perform rotational rising motions, wherein the second and fourth operating platforms perform rotational rising motions in the same direction, and the second and third operating platforms perform rotational motions in opposite directions, so that the first finger-shaped platform and the third finger-shaped platform cooperate with the second finger-shaped platform to gradually clamp and straighten the blade;

[0019] S4, maintenance operation. After the blade is clamped and straightened, the operator performs maintenance work on the blade through maintenance equipment. During maintenance, the operator can enter the second operating table from the first operating table through the first step and the second step, perform maintenance operations on the blade on the first finger-shaped table, enter the third operating table through the third step, perform maintenance operations on the blade on the second finger-shaped table, enter the fourth operating table through the fourth step, perform maintenance operations on the blade on the third finger-shaped table, and adjust the position of the operating table according to the maintenance position of the blade to perform maintenance operations on different areas of the blade.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention drives the auxiliary lifting mechanism to lift on the outer wall of the tower circumference through a driving component, so that the auxiliary lifting mechanism rises to the upper end of the tower, which is convenient for operators to perform maintenance operations on the blades of the wind turbine. The second operating platform, the third operating platform and the fourth operating platform are separated, and cooperate with the first operating platform to form a separated stepped structure as a whole, which can better fit the angle space formed between the side wall of the tower and the blade, and is convenient for operators to perform maintenance operations on the blades in the angle space. The operator can adjust the position of the operating platform where he is located through the stepped operating platform to achieve maintenance operations on different areas of the blade.

[0022] 2. The present invention designs the first finger-shaped table, the second finger-shaped table and the third finger-shaped table, utilizes the second operating table and the fourth operating table to perform the same-direction rotating and ascending motion, and the second operating table and the third operating table to perform the opposite rotating motion, so that the first finger-shaped table and the third finger-shaped table cooperate with the second finger-shaped table to gradually clamp and straighten the blade, so that when the operator performs maintenance operations on the blade, the blade is not easy to shake, thereby improving the stability and safety during the maintenance operation.

[0023] 3. The present invention also designs the first finger-shaped platform, the second finger-shaped platform and the third finger-shaped platform as curved finger-shaped structures so that they can fit well on the side wall of the blade. When the blade is clamped and straightened, they can have a shape hugging effect, thereby further improving the stability of the blade clamping. Moreover, when the first finger-shaped platform, the second finger-shaped platform and the third finger-shaped platform are close to the side wall of the blade, the flexible plate of the side wall of the finger-shaped platform preferentially contacts the blade. In the process of gradual clamping, the flexible plate can compress the spring so that the elastic force generated by the spring reacts on the side wall of the blade, thereby further improving the tightness of the blade clamping.

[0024] 4. The present invention also designs a clamping component so that when the driving component drives the auxiliary lifting mechanism to move up and down on the circumferential outer wall of the tower, the rollers on one side wall of the multiple moving blocks of the clamping component can always fit against the circumferential outer wall of the tower with a conical column structure, thereby forming a clamping effect on the tower. This can effectively prevent the auxiliary lifting mechanism from falling on the tower due to its own gravity, thereby improving the safety of driving the auxiliary lifting mechanism to lift.

[0025] 5. The present invention also forms a clamping effect on the tower by using the rollers on one side wall of multiple moving blocks to always fit the circumferential outer wall of the tower with a conical column structure. Similarly, moving block 2 also always drives gear 2 to fit the side wall of the tooth plate and maintains a meshing connection with the tooth plate, so that motor 2 drives worm gear 2 to rotate, worm gear 2 drives worm wheel 2 and gear 2 to rotate, and during the rotation of gear 2, the tooth plate along the circumferential outer wall of the tower rolls upward, thereby driving the auxiliary lifting mechanism to move upward, thereby ensuring that the auxiliary lifting mechanism can lift and lower the circumferential outer wall of the tower with a conical column structure stably and reliably.

[0026] 6. The present invention drives a worm to rotate through a motor, and the worm drives a worm wheel and a gear to rotate. The gear drives an adjusting ring plate to rotate around the top of a fixed ring plate through a tooth mouth, and a plurality of sliding columns move in a plurality of arc grooves respectively, thereby driving a plurality of moving blocks to slide in a sliding channel, so that the rollers on one side wall of the plurality of moving blocks are always in contact with the circumferential outer wall of the tower of the conical column structure, thereby forming a clamping effect on the tower. Since it is difficult for the worm wheel to drive the worm to rotate, a locking effect can be formed on the reverse rotation of the gear, thereby further preventing the reverse rotation of the adjusting ring plate, thereby achieving a locking effect after the tower is clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the auxiliary lifting mechanism and tower structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the first operating platform of the present invention;

[0030] Figure 4 This is a schematic diagram of the split structure of the multi-layer telescopic operating table of the present invention;

[0031] Figure 5 It is a schematic diagram of the cutaway structure of the multi-layer telescopic operating table of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the second operating table of the present invention;

[0033] Figure 7 It is a schematic diagram of the cutaway structure of the third operating table of the present invention;

[0034] Figure 8 It is a schematic diagram of the cutaway structure of the fourth operating table of the present invention;

[0035] Fig. 9 This is a schematic diagram of the bottom structure of the fourth operating table of the present invention;

[0036] Fig.10 This is a schematic diagram of the split structure of the first operating table of the present invention;

[0037] Fig.11 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0038] Fig.12 It is a schematic diagram of the structure of the adjustment ring plate of the present invention;

[0039] Fig.13 It is a schematic diagram of the structure of the driving assembly of the present invention;

[0040] Fig.14 The figure is a schematic diagram of a usage state of the present invention.

[0041] Description of the numbers in the figure:

[0042] 1. Wind turbine; 2. Auxiliary lifting mechanism; 3. First operating table; 4. Multi-layer telescopic operating table; 5. Multi-stage oil cylinder; 6. Push plate; 7. Clamping assembly; 8. Driving assembly;

[0043] 101. tower; 102. tooth plate;

[0044] 31. Control cylinder; 3101. First adjustment slot; 3102. Second adjustment slot; 3103. Third adjustment slot; 301. Bottom plate; 302. Top plate; 303. Connecting plate; 304. First step; 305. Half circle plate; 306. Second step; 307. Support ring block;

[0045] 41. Second operating station; 42. Third operating station; 43. Fourth operating station;

[0046] 411, first convex column; 421, second convex column; 431, third convex column; 4101, first finger-shaped platform; 4102, spring; 4103, flexible plate; 4104, first supporting ring plate; 4105, first clamping plate; 4106, third step ladder; 4201, second finger-shaped platform; 4202, first annular pull plate; 4203, first pulley; 4204, second supporting ring plate; 4205, second clamping plate; 4206, fourth step ladder; 4301, third finger-shaped platform; 4302, second annular pull plate; 4303, second pulley; 4304, ladder groove; 4305, arc-shaped slide groove;

[0047] 601, curved strips;

[0048] 701, adjusting ring plate; 702, annular slide groove; 703, tooth opening; 704, arc groove; 705, motor 1; 706, fixed frame; 707, worm 1; 708, worm wheel 1; 709, gear 1; 710, limit plate; 711, moving block 1; 712, roller; 713, slide column 1;

[0049] 801. Moving block 2; 802. Sliding column 2; 803. Gear 2; 804. Worm gear 2; 805. Motor 2; 806. Worm gear 2. DETAILED DESCRIPTION

[0050] Embodiment 1, as Figures 1 to 14 As shown, the present invention relates to a maintenance auxiliary device for wind power generation, including a wind turbine 1, the wind turbine 1 is an existing device in the example, the wind turbine 1 includes a tower 101, a tooth plate 102 is arranged on the circumferential outer wall of the tower 101, the tower 101 presents a conical column structure from bottom to top, an auxiliary lifting mechanism 2 is sleeved on the circumferential outer wall of the tower 101, the auxiliary lifting mechanism 2 includes a first operating platform 3, and a multi-layer telescopic operating platform 4 is arranged above the first operating platform 3.

[0051] In the embodiment of the present invention, two multi-stage oil cylinders 5 are arranged above the first operating platform 3. The multi-stage oil cylinders 5 are the existing technology in the example. The multi-stage oil cylinders are also called multi-stage hydraulic cylinders, which are hydraulic actuators that can realize multi-stage telescopic actions. The output end of the multi-stage oil cylinder 5 is connected to a push plate 6. A control cylinder 31 is arranged on the top of the first operating platform 3; the multi-layer telescopic operating platform 4 includes a second operating platform 41, a third operating platform 42 and a fourth operating platform 43; the top of the second operating platform 41 is movably matched with the bottom of the third operating platform 42, the top of the third operating platform 42 is movably matched with the bottom of the fourth operating platform 43, the top of the push plate 6 is movably matched with the bottom of the fourth operating platform 43, and the second operating platform 41, the third operating platform 42 and the fourth operating platform 43 are movably sleeved on the circumferential outer wall of the control cylinder 31;

[0052] Further, the outer circumferential wall of the control cylinder 31 is provided with a first adjustment groove 3101, a second adjustment groove 3102 and a third adjustment groove 3103; the inner circumferential wall of the second operating platform 41 is connected with a first convex column 411, one end of the first convex column 411 is movably arranged in the first adjustment groove 3101, the inner circumferential wall of the third operating platform 42 is connected with a second convex column 421, one end of the second convex column 421 is movably arranged in the second adjustment groove 3102, the inner circumferential wall of the fourth operating platform 43 is connected with a third convex column 431; one end of the third convex column 431 is movably arranged in the third adjustment groove 3103; the first adjustment groove 3101, the second adjustment groove 3102 and the third adjustment groove 3103 are upwardly offset arc structures, the offset directions of the first adjustment groove 3101 and the third adjustment groove 3103 are the same, and the offset directions of the first adjustment groove 3101 and the second adjustment groove 3102 are opposite;

[0053] Furthermore, a clamping component 7 is arranged inside the first operating table 3, and the clamping component 7 includes a driving component 8. The driving component 8 is used to drive the auxiliary lifting mechanism 2 to lift and lower on the circumferential outer wall of the tower 101, and the clamping component 7 is used to form a clamping effect on the circumferential outer wall of the tower 101; the present invention drives the auxiliary lifting mechanism 2 to lift and lower on the circumferential outer wall of the tower 101 through the driving component 8, so that the auxiliary lifting mechanism 2 rises to the upper end of the tower 101, which is convenient for operators to perform maintenance operations on the blades of the wind turbine 1, and forms a separated state through the second operating table 41, the third operating table 42 and the fourth operating table 43, and cooperates with the first operating table 3 to form a separated stepped structure as a whole, which can better fit the angle space formed between the side wall of the tower 101 and the blade, so that the operator can perform maintenance operations on the blade within the angle space. The operator can adjust the position of the operating table where he is located through the stepped structure of the operating table to achieve maintenance operations on different areas of the blade.

[0054] As another embodiment of the present invention, the first operating platform 3 includes a bottom plate 301 and a top plate 302, and the bottom plate 301 and the top plate 302 are connected by a plurality of connecting plates 303; the bottom plate 301 and the top plate 302 are provided with the same circular holes from top to bottom, and the bottom plate 301 and the top plate 302 are movably cooperated with the tower 101 through the circular holes; a first step 304 and a plurality of half-circle plates 305 are arranged on the top surface of the bottom plate 301, a second step 306 and a support ring block 307 are arranged on the top surface of the top plate 302, and the control cylinder 31 is arranged on the top of the support ring block 307; two multi-stage cylinders 5 are arranged on the top of the bottom plate 301 and pass through the top of the top plate 302, and the clamping assembly 7 is arranged between the bottom plate 301 and the top plate 302.

[0055] As another embodiment of the present invention, the clamping assembly 7 includes an adjusting ring plate 701 arranged on the top of the half-circle plate 305, and an annular groove 702 is provided on the bottom surface of the adjusting ring plate 701. The adjusting ring plate 701 rotates with the top of the half-circle plate 305 through the annular groove 702; a plurality of tooth openings 703 are arranged on the circumferential side wall of the adjusting ring plate 701, and a plurality of arc grooves 704 are opened from top to bottom on the adjusting ring plate 701, and the plurality of arc grooves 704 are arranged in an annular array; the clamping assembly 7 also includes a motor 705 arranged on the top of the bottom plate 301. and a fixed frame 706, the output end of the motor 705 is connected to a worm 707, the output end of the worm 707 is meshedly connected to a worm wheel 708, the worm wheel 708 is coaxially connected to a gear 709, the output end of the gear 709 is meshedly connected to the tooth mouth 703, and the worm wheel 708 and the gear 709 are rotatably arranged in the fixed frame 706; the holding assembly 7 also includes a plurality of limit plates 710 arranged on the top of the bottom plate 301, and a sliding channel is formed between the side walls of each two limit plates 710, and a moving block 709 is slidably arranged in the sliding channel 11. A sliding column 713 is arranged on the top surface of the moving block 711, and the upper end of the sliding column 713 is arranged in the arc groove 704. A plurality of rollers 712 are arranged on the side wall of the moving block 711; wherein, there are a plurality of moving blocks 711, and the plurality of moving blocks 711 are arranged in a ring array; the worm 707 is driven to rotate by the motor 705, and the worm 707 drives the worm wheel 708 and the gear 709 to rotate, and the gear 709 drives the adjusting ring plate 701 to rotate around the top of the fixed ring plate 305 through the tooth mouth 703, and the plurality of sliding columns The gears 713 move in the arc grooves 704 respectively, thereby driving the moving blocks 711 to slide in the sliding channel, so that the rollers 712 on the side walls of the moving blocks 711 always fit the circumferential outer wall of the tower 101 of the conical column structure, forming a clamping effect on the tower 101. Since the worm wheel 708 is difficult to drive the worm 707 to rotate, the reverse rotation of the gear 709 can be locked, further preventing the reverse rotation of the adjusting ring plate 701, thereby forming a locking effect after the tower 101 is clamped;

[0056] The present invention designs the clamping component 7 so that when the driving component 8 drives the auxiliary lifting mechanism 2 to move up and down on the circumferential outer wall of the tower 101, the rollers 712 on the side walls of the multiple moving blocks 711 of the clamping component 7 can always fit the circumferential outer wall of the tower 101 with a conical column structure, thereby forming a clamping effect on the tower 101, which can effectively prevent the auxiliary lifting mechanism 2 from falling on the tower 101 due to its own gravity, thereby improving the safety of driving the auxiliary lifting mechanism 2 to move up and down.

[0057] As another embodiment of the present invention, the driving assembly 8 includes a moving block 801 slidably arranged in a sliding channel, a sliding column 802 is arranged on the top of the moving block 801, and the upper end of the sliding column 802 is arranged in the arc groove 704; a gear 803 is rotatably arranged on the side wall of the moving block 801, and the gear 803 is coaxially connected with the worm gear 804, and a motor 805 is arranged on the other side wall of the moving block 801, and the output end of the motor 805 is connected with a worm 806, and the output end of the worm 806 is meshed with the worm gear 804, and the output end of the gear 803 is meshed with the toothed plate 102; the present invention uses a plurality of rollers 71 on the side wall of the moving block 1 711 2 is always in contact with the circumferential outer wall of the tower 101 of the conical column structure, forming a clamping effect on the tower 101. Similarly, the moving block 801 also always drives the gear 803 to be in contact with the side wall of the tooth plate 102 and maintains a meshing connection relationship with the tooth plate 102, so that the motor 805 drives the worm 806 to rotate, and the worm 806 drives the worm wheel 804 and the gear 803 to rotate. During the rotation of the gear 803, the tooth plate 102 along the circumferential outer wall of the tower 101 rolls upward, thereby driving the auxiliary lifting mechanism 2 to move upward, thereby ensuring that the auxiliary lifting mechanism 2 is stably and reliably lifted and lowered on the circumferential outer wall of the tower 101 of the conical column structure.

[0058] As another embodiment of the present invention, the second operating platform 41 includes a first finger-shaped platform 4101, which is a bent finger-shaped structure that can better conform to the shape of the side wall of the blade. The side wall of the first finger-shaped platform 4101 is connected to a flexible plate 4103 through a spring 4102. The flexible plate 4103 is a curved plate structure made of a flexible material. When the first finger-shaped platform 4101 is close to the blade, the flexible plate 4103 can reduce the impact on the blade through the characteristics of its own flexible material; the top of the second operating platform 41 is connected to a first support ring plate 4104, and the top of the first support ring plate 4104 is integrally formed with a first clamping plate 4105. The top of the second operating platform 41 is also arranged with a third step 4106;

[0059] Further, the third operating platform 42 includes a second finger-shaped platform 4201, and the second finger-shaped platform 4201 and the first finger-shaped platform 4101 are arranged with the same structural components; the bottom of the third operating platform 42 is connected to a first annular pull plate 4202, and a plurality of first pulleys 4203 are arranged on the inner side wall of the first annular pull plate 4202, and the plurality of first pulleys 4203 are distributed in an annular array, and the first annular pull plate 4202 is arranged below the first clamping plate 4105, and the bottom of the third operating platform 42 is movably matched with the top of the second operating platform 41 through the first annular pull plate 4202; the top of the third operating platform 42 is connected to a second support ring plate 4204, and the top of the second support ring plate 4204 is integrally formed with a second clamping plate 4205, and the top of the third operating platform 42 is also arranged with a fourth step 4206;

[0060] Furthermore, the fourth operating platform 43 includes a third finger-shaped platform 4301, and the third finger-shaped platform 4301 is arranged with the same structural components as the first finger-shaped platform 4101; the bottom of the fourth operating platform 43 is connected to a second annular pull plate 4302, and a plurality of second pulleys 4303 are arranged on the inner side wall of the second annular pull plate 4302, and the plurality of second pulleys 4303 are distributed in an annular array, and the second annular pull plate 4302 is arranged below the second clamping plate 4205, and the bottom of the fourth operating platform 43 is movably matched with the top of the third operating platform 42 through the second annular pull plate 4302; the top surface of the fourth operating platform 43 is provided with a ladder groove 4304 from top to bottom, and the ladder groove 4304 Used to provide a use space for the fourth step 4206; the bottom surface of the fourth operating platform 43 is provided with an arc-shaped slide groove 4305; the present invention designs the first finger-shaped platform 4101, the second finger-shaped platform 4201 and the third finger-shaped platform 4301, and utilizes the second operating platform 41 and the fourth operating platform 43 to perform the same-direction rotation and ascending motion, and the second operating platform 41 and the third operating platform 42 to perform the opposite rotation motion, so that the first finger-shaped platform 4101 and the third finger-shaped platform 4301 cooperate with the second finger-shaped platform 4201 to gradually clamp and straighten the blade, so that when the operator performs maintenance operations on the blade, the blade is not easy to shake, thereby improving the stability and safety during the maintenance operation;

[0061] The present invention also designs the first finger-shaped platform 4101, the second finger-shaped platform 4201 and the third finger-shaped platform 4301 as curved finger-shaped structures, so that they can fit better on the side walls of the blade, and when the blade is clamped and straightened, they can have a shape hugging effect, thereby further improving the stability of the blade clamping. Moreover, when the first finger-shaped platform 4101, the second finger-shaped platform 4201 and the third finger-shaped platform 4301 are close to the side walls of the blade, the flexible plates on the side walls of the finger-shaped platforms preferentially contact the blade. In the process of gradual clamping, the flexible plate can compress the spring, so that the elastic force generated by the spring reacts on the side walls of the blade, thereby further improving the tightness of the blade clamping.

[0062] As another embodiment of the present invention, the push plate 6 is an arc-shaped plate-like structure, and an arc-shaped strip plate 601 is integrally formed on the top of the push plate 6. The arc-shaped strip plate 601 slides in cooperation with the arc-shaped slide groove 4305, and performs extended-range motion through two multi-stage cylinders 5, driving the push plate 6 to rise to the bottom of the fourth operating platform 43, so that the arc-shaped strip plate 601 on the top of the push plate 6 is inserted into the arc-shaped slide groove 4305, and the push plate 6 pushes the fourth operating platform 43 to rise. During the rising process of the fourth operating platform 43, the third protrusion 431 of the fourth operating platform 43 slides upward along the third adjusting groove 3103, so that the fourth operating platform 43 rotates and rises. At this time, the bottom of the operating platform 43 forms a rotation effect with the push plate 6 through the arc-shaped slide groove 4305, which ensures that the push plate 6 pushes the fourth operating platform 43 to rise, and can also make the fourth operating platform 43 rotate.

[0063] Embodiment 2: This embodiment provides a method for using a maintenance auxiliary device for wind power generation, comprising the following steps:

[0064] S1, pre-processing operation, controlling the blades of the wind turbine 1 to stop rotating, so that the blades and the tower 101 are kept in the same vertical plane as much as possible;

[0065] S2, lifting operation, the operator carries the maintenance equipment to the first operating platform 3, drives the worm 2 806 to rotate through the motor 2 805, and the worm 2 806 drives the worm wheel 2 804 and the gear 2 803 to rotate. During the rotation of the gear 2 803, the toothed plate 102 along the outer wall of the circumference of the tower 101 rolls upward, thereby driving the auxiliary lifting mechanism 2 to move upward. During the movement, the motor 1 705 drives the worm 1 707 to rotate, and the worm 1 707 drives the worm wheel 1 708 and the gear 1 709 to rotate. The gear 1 709 drives the adjustment through the tooth mouth 703. The ring plate 701 rotates around the top of the fixed ring plate 305, and the plurality of sliding columns 713 respectively move in the plurality of arc grooves 704, thereby driving the plurality of moving blocks 711 to slide in the sliding channel, so that the rollers 712 on the side walls of the plurality of moving blocks 711 always fit the circumferential outer wall of the tower 101 of the conical column structure, forming a clamping effect on the tower 101. Similarly, the moving block 801 always drives the gear 803 to fit the side wall of the tooth plate 102, and always maintains a meshing connection relationship with the tooth plate 102, so that the ascending process of the auxiliary lifting mechanism 2 is stable and reliable;

[0066] S3, for the blade clamping and straightening operation, the auxiliary lifting mechanism 2 rises to the upper end of the tower 101 and then stops, and the two multi-stage cylinders 5 perform extended-range motion to drive the push plate 6 to rise to the bottom of the fourth operating platform 43, so that the arc-shaped strip plate 601 at the top of the push plate 6 is inserted into the arc-shaped slide groove 4305, and the push plate 6 pushes the fourth operating platform 43 to rise. During the rising process of the fourth operating platform 43, the second annular pull plate 4302 at its bottom gradually approaches the bottom of the second clamping plate 4205 of the third operating platform 42, until the tops of the multiple second pulleys 4303 on the inner side wall of the second annular pull plate 4302 contact the bottom of the second clamping plate 4205 and drive the second clamping plate 4205 to rise, that is, drive the third operating platform 42 to rise. Similarly, the The third operating table 42 drives the second operating table 41 to rise through the first annular pull plate 4202 at the bottom thereof. During the rising process of the second operating table 41, the third operating table 42 and the fourth operating table 43, the first protrusion 411 of the second operating table 41 slides upward along the first adjustment groove 3101, driving the second operating table 41 to form a rotational rising motion. Similarly, the third operating table 42 and the fourth operating table 43 perform a rotational rising motion, wherein the second operating table 41 and the fourth operating table 43 perform a rotational rising motion in the same direction, and the second operating table 41 and the third operating table 42 perform a rotational motion in opposite directions, so that the first finger-shaped table 4101 and the third finger-shaped table 4301 cooperate with the second finger-shaped table 4201 to gradually clamp and straighten the blade;

[0067] S4, maintenance operation. After the blade is clamped and straightened, the operator performs maintenance work on the blade through maintenance equipment. During the maintenance, the operator can enter the second operating table 41 from the first operating table 3 through the first step ladder 304 and the second step ladder 306, perform maintenance operations on the blade on the first finger-shaped table 4101, enter the third operating table 42 through the third step ladder 4106, perform maintenance operations on the blade on the second finger-shaped table 4201, enter the fourth operating table 43 through the fourth step ladder 4206, and perform maintenance operations on the blade on the third finger-shaped table 4301. According to the maintenance position of the blade, the operator adjusts the position of the operating table where the operator is located to perform maintenance operations on different areas of the blade.

[0068] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A maintenance auxiliary device for wind power generation, comprising a wind turbine (1), wherein the wind turbine (1) comprises a tower (101), characterized in that: The outer circumferential wall of the tower (101) is sleeved with an auxiliary lifting mechanism (2), the auxiliary lifting mechanism (2) comprising a first operating platform (3), and a multi-layer telescopic operating platform (4) is arranged above the first operating platform (3); A plurality of multi-stage oil cylinders (5) are arranged above the first operating platform (3), the output ends of the multi-stage oil cylinders (5) are connected to push plates (6), and a control cylinder (31) is arranged on the top of the first operating platform (3); The multi-layer telescopic operating platform (4) comprises a second operating platform (41), a third operating platform (42) and a fourth operating platform (43); The top of the second operating platform (41) is movably matched with the bottom of the third operating platform (42), the top of the third operating platform (42) is movably matched with the bottom of the fourth operating platform (43), the top of the push plate (6) is movably matched with the bottom of the fourth operating platform (43), and the second operating platform (41), the third operating platform (42) and the fourth operating platform (43) are movably sleeved on the circumferential outer wall of the control cylinder (31); The outer circumferential wall of the control cylinder (31) is provided with a first adjustment groove (3101), a second adjustment groove (3102) and a third adjustment groove (3103); The inner circumferential wall of the second operating platform (41) is connected to a first convex column (411), one end of the first convex column (411) is movably arranged in the first adjustment groove (3101); the inner circumferential wall of the third operating platform (42) is connected to a second convex column (421), one end of the second convex column (421) is movably arranged in the second adjustment groove (3102); the inner circumferential wall of the fourth operating platform (43) is connected to a third convex column (431); one end of the third convex column (431) is movably arranged in the third adjustment groove (3103); A clamping assembly (7) is arranged inside the first operating platform (3), and the clamping assembly (7) includes a driving assembly (8). The driving assembly (8) is used to drive the auxiliary lifting mechanism (2) to lift and lower on the circumferential outer wall of the tower (101), and the clamping assembly (7) is used to form a clamping effect on the circumferential outer wall of the tower (101).

2. A wind power generation maintenance auxiliary device according to claim 1, characterized in that: A toothed plate (102) is arranged on the circumferential outer wall of the tower (101), and the tower (101) presents a conical column structure from the bottom to the top.

3. A wind power generation maintenance auxiliary device according to claim 2, characterized in that: The first operating table (3) comprises a bottom plate (301) and a top plate (302), wherein the bottom plate (301) and the top plate (302) are connected via a plurality of connecting plates (303); The bottom plate (301) and the top plate (302) are provided with identical circular holes from top to bottom, and the bottom plate (301) and the top plate (302) are movably matched with the tower (101) through the circular holes; The top surface of the bottom plate (301) is provided with a first step (304) and a plurality of half-circle plates (305), the top surface of the top plate (302) is provided with a second step (306) and a support circle block (307), and the control cylinder (31) is arranged on the top of the support circle block (307); The plurality of multi-stage oil cylinders (5) are arranged on the top of the bottom plate (301) and penetrate the top of the top plate (302); the clamping assembly (7) is arranged between the bottom plate (301) and the top plate (302).

4. A wind power generation maintenance auxiliary device according to claim 3, characterized in that: The clamping assembly (7) comprises an adjusting ring plate (701) arranged on the top of the half-circle plate (305), the bottom surface of the adjusting ring plate (701) is provided with an annular sliding groove (702), and the adjusting ring plate (701) is rotatably matched with the top of the half-circle plate (305) through the annular sliding groove (702); The circumferential side wall of the adjusting ring plate (701) is provided with a plurality of tooth openings (703), and the adjusting ring plate (701) is provided with a plurality of arc-shaped grooves (704) from top to bottom, and the plurality of arc-shaped grooves (704) are arranged in a ring array; The clamping assembly (7) further comprises a motor 1 (705) and a fixing frame (706) arranged on the top of the base plate (301); the output end of the motor 1 (705) is connected to a worm 1 (707); the output end of the worm 1 (707) is meshingly connected to a worm wheel 1 (708); the worm wheel 1 (708) is coaxially connected to a gear 1 (709); the output end of the gear 1 (709) is meshingly connected to the tooth opening (703); the worm wheel 1 (708) and the gear 1 (709) are rotatably arranged in the fixing frame (706); The clamping assembly (7) further comprises a plurality of limiting plates (710) arranged on the top of the bottom plate (301), a sliding channel being formed between the side walls of every two limiting plates (710), a moving block (711) being slidably arranged in the sliding channel, a sliding column (713) being arranged on the top surface of the moving block (711), an upper end of the sliding column (713) being arranged in the arc groove (704), and a plurality of rollers (712) being arranged on the side wall of the moving block (711); There are multiple moving blocks one (711), and the multiple moving blocks one (711) are arranged in a ring array.

5. A maintenance auxiliary device for wind power generation according to claim 4, characterized in that: The driving assembly (8) comprises a second moving block (801) slidably arranged in one of the sliding channels, a second sliding column (802) is arranged on the top of the second moving block (801), and the upper end of the second sliding column (802) is arranged in the arc groove (704); The side wall of the movable block 2 (801) is rotatably arranged with a gear 2 (803), and the gear 2 (803) is coaxially connected with a worm gear 2 (804). The other side wall of the movable block 2 (801) is arranged with a motor 2 (805), and the output end of the motor 2 (805) is connected with a worm gear 2 (806), and the output end of the worm gear 2 (806) is meshingly connected with the worm gear 2 (804), and the output end of the gear 2 (803) is meshingly connected with the toothed plate (102).

6. A wind power generation maintenance auxiliary device according to claim 5, characterized in that: The second operating platform (41) comprises a first finger-shaped platform (4101), the side wall of the first finger-shaped platform (4101) is connected to a flexible plate (4103) via a spring (4102), and the flexible plate (4103) is a curved plate structure made of a flexible material; The top of the second operating platform (41) is connected to a first supporting ring plate (4104), the top of the first supporting ring plate (4104) is integrally formed with a first clamping plate (4105), and the top of the second operating platform (41) is also arranged with a third step ladder (4106).

7. A wind power generation maintenance auxiliary device according to claim 6, characterized in that: The third operating table (42) comprises a second finger-shaped table (4201), wherein the second finger-shaped table (4201) and the first finger-shaped table (4101) are arranged with the same structural components; The bottom of the third operating table (42) is connected to a first annular pull plate (4202), the inner side wall of the first annular pull plate (4202) is arranged with a plurality of first pulleys (4203), the plurality of first pulleys (4203) are distributed in an annular array, the first annular pull plate (4202) is arranged below the first clamping plate (4105), and the bottom of the third operating table (42) is movably matched with the top of the second operating table (41) through the first annular pull plate (4202); The top of the third operating platform (42) is connected to a second supporting ring plate (4204), the top of the second supporting ring plate (4204) is integrally formed with a second clamping plate (4205), and the top of the third operating platform (42) is also arranged with a fourth step (4206).

8. A maintenance auxiliary device for wind power generation according to claim 7, characterized in that: The fourth operating table (43) comprises a third finger-shaped table (4301), and the third finger-shaped table (4301) and the first finger-shaped table (4101) are arranged with the same structural components; The bottom of the fourth operating table (43) is connected to a second annular pull plate (4302), the inner side wall of the second annular pull plate (4302) is arranged with a plurality of second pulleys (4303), the plurality of second pulleys (4303) are distributed in an annular array, the second annular pull plate (4302) is arranged below the second clamping plate (4205), and the bottom of the fourth operating table (43) is movably matched with the top of the third operating table (42) through the second annular pull plate (4302); The top surface of the fourth operating platform (43) is provided with a ladder groove (4304) from top to bottom, and the ladder groove (4304) is used to provide a use space for the fourth step ladder (4206); The bottom surface of the fourth operating table (43) is provided with an arc-shaped sliding groove (4305).

9. A wind power generation maintenance auxiliary device according to claim 8, characterized in that: The push plate (6) is an arc-shaped plate-like structure, and an arc-shaped strip plate (601) is integrally formed on the top of the push plate (6), and the arc-shaped strip plate (601) is slidably matched with the arc-shaped sliding groove (4305).

10. A wind power generation maintenance auxiliary device according to claim 9, characterized in that: The first adjustment groove (3101), the second adjustment groove (3102) and the third adjustment groove (3103) are arc-shaped structures that are offset upwards, the offset directions of the first adjustment groove (3101) and the third adjustment groove (3103) are the same, and the offset directions of the first adjustment groove (3101) and the second adjustment groove (3102) are opposite.

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