Blade maintenance device of wind generating set

Abstract

The invention relates to the technical field of wind power generation maintenance and detection, and particularly discloses a blade maintenance device of a wind generating set. A sliding groove extending in the horizontal direction is formed in a mounting base, a winch is used for winding and unwinding a pull rope, one end of the pull rope is connected to the winch, and the other end of the pull rope is connected to a bearing mechanism; the winch is fixedly installed on the supporting platform, the first driving motor can drive the lead screw to rotate, the lead screw extends in the horizontal direction, the sliding block is in threaded connection with the lead screw, the suspension arm is in sliding fit with the sliding groove, and the suspension arm is fixedly connected between the supporting platform and the sliding block. According to the arrangement, the pulling rope is retracted and released through the winch, maintenance personnel on the bearing mechanism can be lifted to the designated height, the first driving motor is started to drive the lead screw to rotate and drive the sliding block to move, the sliding block synchronously drives the supporting platform to transversely move in the horizontal direction through the suspension arm, and therefore the position of the maintenance personnel is further adjusted in the horizontal direction; the operable range of maintenance is expanded, and the operation flexibility is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation maintenance and detection, and in particular to a blade maintenance device for a wind power generator set. Background Art

[0002] A wind turbine is a system that converts the kinetic energy of wind into electrical energy. The working principle of a wind turbine is as follows: the blades rotate under the action of wind, which converts the kinetic energy of wind into mechanical energy of the wind blade shaft, and the generator rotates and generates electricity driven by the wind blade shaft. Among them, the blades are one of the core components of a wind turbine, which is crucial to power generation efficiency and safety. However, due to long-term exposure to the natural environment, the blades are easily affected by factors such as wind, rain, ice, and sunlight, which can easily lead to corrosion or damage. Therefore, it is very important to regularly maintain and inspect the blades of wind turbines.

[0003] Existing blade maintenance devices for wind turbines are usually fixed integral structures, in which the lifting rope can only enable maintenance personnel to lift up and down horizontally, which is not convenient for maintenance personnel to accurately reach the designated maintenance position, the maintenance operation range is limited, and the overall flexibility is poor.

[0004] Therefore, there is an urgent need for a blade maintenance device for a wind turbine generator set to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a blade maintenance device for a wind turbine generator set, which can effectively improve the operability and flexibility of wind turbine generator set blade maintenance.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] The present invention provides a blade maintenance device for a wind turbine generator set, comprising:

[0008] A mounting base, wherein a slide groove is provided on the mounting base and the slide groove extends in a horizontal direction;

[0009] A carrying mechanism, the carrying mechanism is used to carry maintenance personnel;

[0010] A winch and a pull rope, wherein the winch is used to retract and release the pull rope, one end of the pull rope is connected to the winch, and the other end of the pull rope is connected to the bearing mechanism;

[0011] A supporting platform, wherein the winch is fixedly mounted on the supporting platform;

[0012] A first drive motor and a lead screw, wherein the first drive motor is transmission-connected to the lead screw and the first drive motor can drive the lead screw to rotate, and the lead screw is extended in a horizontal direction;

[0013] A slider, the slider being threadedly connected to the lead screw;

[0014] A suspension arm is slidably matched with the slide groove, and the suspension arm is fixedly connected between the support platform and the slide block.

[0015] As a preferred technical solution of the blade maintenance device of the above-mentioned wind turbine generator set, the blade maintenance device of the wind turbine generator set also includes a sliding seat and a guide rail, the guide rail is arranged on the mounting base, and the guide rail is extended along the horizontal direction, the sliding seat is fixedly connected to the boom, and the sliding seat is slidably connected to the guide rail.

[0016] As a preferred technical solution of the blade maintenance device of the above-mentioned wind turbine generator set, the blade maintenance device of the wind turbine generator set also includes a first fixing rod, a second fixing rod, a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are opposite to each other and are arranged at an interval, and the first fixing plate and the second fixing plate are respectively fixedly connected to the two ends of the length direction of the mounting base, the two ends of the lead screw are respectively rotatably connected to the first fixing plate and the second fixing plate, the first fixing rod and the second fixing rod are both fixedly connected between the first fixing plate and the second fixing plate, and the first fixing rod and the second fixing rod are both slidably passed through the slider.

[0017] As a preferred technical solution of the blade maintenance device of the above-mentioned wind turbine generator set, the supporting mechanism includes a supporting seat and two storage components, the two storage components are detachably connected to the outer wall of the supporting seat, and the storage components are used to store maintenance tools, and the supporting seat is used to receive the maintenance personnel.

[0018] As a preferred technical solution of the blade maintenance device of the above-mentioned wind turbine generator set, the storage assembly includes a tool box, a first fixing block, a second fixing block, two locking columns and an elastic member, the tool box is used to store maintenance tools, the first fixing block is fixedly connected to the tool box, the second fixing block is fixedly connected to the outer wall of the bearing seat, the first fixing block is supported on the second fixing block, the first fixing block is provided with a first slot hole, the second fixing block is provided with a second slot hole, the two locking columns are simultaneously penetrated by the first slot hole and the second slot hole, and the outer walls of the two locking columns are both convexly provided with a first limiting portion, the inner wall of the first slot hole is provided with two limiting grooves, the two limiting grooves are arranged one-to-one with the two first limiting portions, the two ends of the elastic member are connected between the two locking columns, and the elastic member can simultaneously give a force to the two locking columns so that the first limiting portion is inserted into the limiting groove.

[0019] As a preferred technical solution of the blade maintenance device of the above-mentioned wind turbine generator set, the bottom ends of the two locking columns are both protruded with a second limiting portion, and the two second limiting portions are both in contact with and attached to the lower surface of the second fixing block.

[0020] As a preferred technical solution of the blade maintenance device of the above-mentioned wind turbine generator set, the elastic member is a compression spring.

[0021] As a preferred technical solution of the blade maintenance device of the above-mentioned wind turbine generator set, the supporting mechanism also includes a limiting rod, a fixing ring and a safety rope, the limiting rod is fixedly connected in the supporting seat, the fixing ring is fixedly connected to the limiting rod, and the safety rope is connected between the fixing ring and the maintenance personnel.

[0022] As a preferred technical solution of the blade maintenance device of the above-mentioned wind turbine generator set, the winch includes a winch and a second drive motor, the pull rope is wound around the winch, the second drive motor is transmission-connected to the winch, and the second drive motor can drive the winch to rotate to retract and release the pull rope.

[0023] As an optimal technical solution of the blade maintenance device of the above-mentioned wind turbine generator set, the blade maintenance device of the wind turbine generator set also includes a guide wheel, which is fixedly installed on the support platform, and the other end of the pull rope passes around the guide wheel and is connected to the bearing mechanism.

[0024] The beneficial effects of the present invention are:

[0025] The present invention provides a blade maintenance device for a wind turbine generator set, which comprises: a mounting base, a bearing mechanism, a winch, a pull rope, a support platform, a first driving motor, a lead screw, a slider and a boom, wherein a slide groove is provided on the mounting base, the slide groove is extended in the horizontal direction, the bearing mechanism is used to receive maintenance personnel, the winch is used to retract and release the pull rope, one end of the pull rope is connected to the winch, and the other end of the pull rope is connected to the bearing mechanism, the winch is fixedly installed on the support platform, the first driving motor is connected to the lead screw by transmission, and the first driving motor can drive the lead screw to rotate, the lead screw is extended in the horizontal direction, the slider is threadedly connected to the lead screw, the boom is slidably matched with the slide groove, and the boom is fixedly connected between the support platform and the slider. With such a configuration, when it is necessary to repair the blades of the wind turbine generator set, the winch can be used to retract and release the pull rope to lift the maintenance personnel on the support mechanism to a specified height, the first driving motor is started to drive the lead screw to rotate, drive the slider to move, and the slider synchronously drives the support platform to move horizontally through the boom, thereby further adjusting the position of the maintenance personnel in the horizontal direction, expanding the operable range of maintenance, and improving the operational flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a blade maintenance device for a wind turbine generator set provided by the present invention;

[0027] Figure 2 An exploded view of a blade maintenance device for a wind turbine generator set provided by the present invention;

[0028] Figure 3 A schematic diagram of the structure of the bearing mechanism provided by the present invention;

[0029] Figure 4 A partial exploded view of the supporting mechanism provided by the present invention.

[0030] in:

[0031] 1. Mounting base; 2. Pull rope; 3. Support platform; 4. First drive motor; 5. Lead screw; 6. Sliding block; 7. Hanging arm; 8. Sliding seat; 9. Guide rail; 10. First fixing rod; 11. Second fixing rod; 12. First fixing plate; 13. Second fixing plate; 14. Bearing seat; 15. Tool box;

[0032] 16. First fixing block; 161. First slot;

[0033] 17. second fixing block; 171. second slot;

[0034] 18. Locking column; 19. Elastic member; 20. First limiting portion; 21. Second limiting portion; 22. Limiting rod; 23. Fixing ring; 24. Winch; 25. Second driving motor; 26. Guide wheel. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0037] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0040] like Figures 1 to 4 As shown, the present embodiment provides a blade maintenance device for a wind turbine generator set, which comprises: a mounting base 1, a bearing mechanism, a winch, a pull rope 2, a support platform 3, a first drive motor 4, a lead screw 5, a slider 6 and a boom 7. The mounting base 1 is fixedly mounted on the top of the wind turbine generator set by bolts or welding. A slide groove is provided on the mounting base 1, and the slide groove is extended in the horizontal direction. The bearing mechanism is used to receive maintenance personnel. The winch is used to retract and release the pull rope 2. One end of the pull rope 2 is connected to the winch, and the other end of the pull rope 2 is connected to the bearing mechanism. The winch is fixedly mounted on the support platform 3. The first drive motor 4 is transmission-connected to the lead screw 5, and the first drive motor 4 can drive the lead screw 5 to rotate. The lead screw 5 is extended in the horizontal direction. The slider 6 is threadedly connected to the lead screw 5. The boom 7 slides in cooperation with the slide groove, and the boom 7 is fixedly connected between the support platform 3 and the slider 6. With such arrangement, when the blades of the wind turbine generator set need to be repaired, the maintenance personnel on the supporting mechanism can be lifted to a specified height by retracting and releasing the pull rope 2 by the winch, and then the first drive motor 4 is started to drive the screw 5 to rotate, thereby driving the slider 6 to move. The slider 6 synchronously drives the support platform 3 to move horizontally through the boom 7, thereby further adjusting the position of the maintenance personnel in the horizontal direction, expanding the operable range of maintenance, and improving operational flexibility.

[0041] In this embodiment, the winch includes a winch 24 and a second drive motor 25 . The pull rope 2 is wound around the winch 24 . The second drive motor 25 is transmission-connected to the winch 24 . The second drive motor 25 can drive the winch 24 to rotate to retract and release the pull rope 2 .

[0042] Optionally, the blade maintenance device of the wind turbine generator set further includes a guide wheel 26, which is fixedly mounted on the support platform 3, and the other end of the pull rope 2 passes through the guide wheel 26 and is connected to the bearing mechanism. In this way, the guide wheel 26 provides a guiding and supporting function for the pull rope 2, further ensuring that it is stable and reliable when pulling and lifting maintenance personnel.

[0043] Optionally, the blade maintenance device of the wind turbine generator set further includes a sliding seat 8 and a guide rail 9, wherein the guide rail 9 is arranged on the mounting base 1 and extends in the horizontal direction, and the sliding seat 8 is fixedly connected to the boom 7, and the sliding seat 8 is slidably connected to the guide rail 9. In this arrangement, the stability and reliability of the horizontal movement of the boom 7 can be synchronously improved through the sliding cooperation between the sliding seat 8 and the guide rail 9, thereby ensuring the stability of the maintenance personnel when adjusting the horizontal lateral position.

[0044] Optionally, the blade maintenance device of the wind turbine generator set further includes a first fixing rod 10, a second fixing rod 11, a first fixing plate 12 and a second fixing plate 13, the first fixing plate 12 and the second fixing plate 13 are opposite and spaced apart, and the first fixing plate 12 and the second fixing plate 13 are respectively fixedly connected to the two ends of the length direction of the mounting base 1, the two ends of the lead screw 5 are respectively rotatably connected to the first fixing plate 12 and the second fixing plate 13, the first fixing rod 10 and the second fixing rod 11 are both fixedly connected between the first fixing plate 12 and the second fixing plate 13, and the first fixing rod 10 and the second fixing rod 11 are both slidably penetrated by the slider 6. In this way, by setting the first fixing rod 10 and the second fixing rod 11, the stability of the slider 6 during movement can be improved, and the slider 6 is limited, so that the slider 6 can be prevented from rotating or shaking during movement, thereby improving the stability of the overall blade maintenance device during use.

[0045] Optionally, in order to facilitate maintenance personnel to take and place corresponding maintenance tools during maintenance work, the supporting mechanism includes a supporting seat 14 and two storage components, the two storage components are detachably connected to the outer wall of the supporting seat 14, and the storage components are used to store maintenance tools, and the supporting seat 14 is used to accommodate maintenance personnel.

[0046] Specifically, the present embodiment exemplarily provides the following solution: the storage assembly includes a tool frame 15, a first fixing block 16, a second fixing block 17, two locking columns 18 and an elastic member 19, the tool frame 15 is used to store maintenance tools, the first fixing block 16 is fixedly connected to the tool frame 15, the second fixing block 17 is fixedly connected to the outer wall of the bearing seat 14, the first fixing block 16 is supported on the second fixing block 17, the first fixing block 16 is provided with a first slot 161, the second fixing block 17 is provided with a second slot 171, and the two locking columns 18 are penetrated by the first slot at the same time 161 and the second slot hole 171, and the outer side walls of the two locking columns 18 are convexly provided with a first limiting portion 20, the inner wall of the first slot hole 161 is provided with two limiting grooves, and the two limiting grooves are arranged one by one with the two first limiting portions 20, the two ends of the elastic member 19 are connected between the two locking columns 18, and the elastic member 19 can simultaneously give the two locking columns 18 a force so that the first limiting portion 20 is inserted into the limiting groove, and the bottom ends of the two locking columns 18 are convexly provided with a second limiting portion 21, and the two second limiting portions 21 are both in contact with and fit the lower surface of the second fixing block 17. Specifically, the elastic member 19 is a compression spring. Such arrangement facilitates the disassembly and assembly of the tool frame 15. The two locking posts 18 can be pressed together by manpower to be close to each other to squeeze and resist the force of the elastic member 19, so that the two first limiting portions 20 are respectively disengaged from the two limiting grooves, and at the same time, the two second limiting portions 21 are disengaged from the lower surface of the second fixing block 17, so that the tool frame 15 can be removed through the first fixing block 16 to put the required maintenance tools into the tool frame 15. After the maintenance tools are loaded, the two locking posts 18 are continued to be pressed together to be close to each other to resist the force of the elastic member 19, and the two locking posts 18 are inserted into the first slots 161, and the two first limiting portions 20 correspond to the two limiting grooves respectively, and the two locking posts 18 are released. Under the action of the elastic force of the elastic member 19 itself, the two locking posts 18 are driven away from each other, and finally the first limiting portion 20 is inserted into the limiting groove, thereby completing the fixed installation of the tool frame 15.

[0047] Optionally, the bearing mechanism further includes a limit rod 22, a fixing ring 23 and a safety rope, wherein the limit rod 22 is fixedly connected to the bearing seat 14, the fixing ring 23 is fixedly connected to the limit rod 22, and the safety rope is connected between the fixing ring 23 and the maintenance personnel. In this arrangement, the limit rod 22 can limit the maintenance personnel to prevent the maintenance personnel from sliding on the surface of the bearing seat 14 during maintenance, and through the setting of the fixing ring 23, the maintenance personnel can fasten the safety rope in the fixing ring 23 during maintenance, thereby further improving the safety during maintenance operations.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A blade maintenance device for a wind turbine generator set, characterized in that: include: A mounting base (1), wherein a slide groove is provided on the mounting base (1), and the slide groove is extended in a horizontal direction; A carrying mechanism, the carrying mechanism is used to receive maintenance personnel; A winch and a pull rope (2), wherein the winch is used to retract and release the pull rope (2), one end of the pull rope (2) is connected to the winch, and the other end of the pull rope (2) is connected to the bearing mechanism; A supporting platform (3), the winch being fixedly mounted on the supporting platform (3); A first drive motor (4) and a lead screw (5), wherein the first drive motor (4) is transmission-connected to the lead screw (5), and the first drive motor (4) is capable of driving the lead screw (5) to rotate, and the lead screw (5) is extended in a horizontal direction; A slider (6), wherein the slider (6) is threadedly connected to the lead screw (5); A suspension arm (7), wherein the suspension arm (7) is slidably matched with the slide groove, and the suspension arm (7) is fixedly connected between the support platform (3) and the slide block (6).

2. The blade maintenance device for a wind turbine generator set according to claim 1, characterized in that: The blade maintenance device of the wind turbine generator set also includes a sliding seat (8) and a guide rail (9), wherein the guide rail (9) is arranged on the mounting base (1), and the guide rail (9) is extended along the horizontal direction, the sliding seat (8) is fixedly connected to the boom (7), and the sliding seat (8) is slidably connected to the guide rail (9).

3. The blade maintenance device for a wind turbine generator set according to claim 1, characterized in that: The blade maintenance device of the wind turbine generator set further comprises a first fixing rod (10), a second fixing rod (11), a first fixing plate (12) and a second fixing plate (13); the first fixing plate (12) and the second fixing plate (13) are arranged opposite to each other and spaced apart, and the first fixing plate (12) and the second fixing plate (13) are respectively fixedly connected to the two ends of the mounting base (1) in the length direction; the two ends of the lead screw (5) are respectively rotatably connected to the first fixing plate (12) and the second fixing plate (13); the first fixing rod (10) and the second fixing rod (11) are both fixedly connected between the first fixing plate (12) and the second fixing plate (13), and the first fixing rod (10) and the second fixing rod (11) are both slidably passed through the slider (6).

4. The blade maintenance device for a wind turbine generator set according to claim 1, characterized in that: The bearing mechanism comprises a bearing seat (14) and two storage components, the two storage components are detachably connected to the outer side wall of the bearing seat (14), and the storage components are used to store maintenance tools, and the bearing seat (14) is used to receive the maintenance personnel.

5. The blade maintenance device for a wind turbine generator set according to claim 4, characterized in that: The storage assembly comprises a tool frame (15), a first fixing block (16), a second fixing block (17), two locking columns (18) and an elastic member (19); the tool frame (15) is used to store maintenance tools; the first fixing block (16) is fixedly connected to the tool frame (15); the second fixing block (17) is fixedly connected to the outer side wall of the bearing seat (14); the first fixing block (16) is supported on the second fixing block (17); the first fixing block (16) is provided with a first slot hole (161); the second fixing block (17) is provided with a second slot hole (171) The two locking posts (18) are simultaneously penetrated by the first slot hole (161) and the second slot hole (171), and the outer side walls of the two locking posts (18) are both convexly provided with a first limiting portion (20), and the inner wall of the first slot hole (161) is provided with two limiting grooves, and the two limiting grooves are arranged in a one-to-one correspondence with the two first limiting portions (20), and the two ends of the elastic member (19) are connected between the two locking posts (18), and the elastic member (19) can simultaneously give a force to the two locking posts (18) so that the first limiting portion (20) is inserted into the limiting groove.

6. The blade maintenance device for a wind turbine generator set according to claim 5, characterized in that: The bottom ends of the two locking columns (18) are both protrudingly provided with a second limiting portion (21), and the two second limiting portions (21) are both in contact with and fitted to the lower surface of the second fixing block (17).

7. The blade maintenance device for a wind turbine generator set according to claim 5, characterized in that: The elastic member (19) is a compression spring.

8. The blade maintenance device for a wind turbine generator set according to claim 1, characterized in that: The bearing mechanism further comprises a limiting rod (22), a fixing ring (23) and a safety rope, wherein the limiting rod (22) is fixedly connected to the bearing seat (14), the fixing ring (23) is fixedly connected to the limiting rod (22), and the safety rope is connected between the fixing ring (23) and the maintenance personnel.

9. The blade maintenance device for a wind turbine generator set according to claim 1, characterized in that: The winch comprises a winch (24) and a second drive motor (25), the pull rope (2) is wound around the winch (24), the second drive motor (25) is transmission-connected to the winch (24), and the second drive motor (25) can drive the winch (24) to rotate so as to retract and release the pull rope (2).

10. The blade maintenance device for a wind turbine generator set according to claim 1, characterized in that: The blade maintenance device of the wind turbine generator set also includes a guide wheel (26), which is fixedly mounted on the support platform (3), and the other end of the pull rope (2) passes around the guide wheel (26) and is connected to the bearing mechanism.

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