Universal variable-pitch slip ring maintenance test tool for wind turbine generator

Abstract

The utility model discloses a universal type variable pitch slip ring maintenance test tool for a wind turbine generator, which comprises a base, a stator part of a slip ring and a rotor part of the slip ring, the top of the base is provided with a fixing assembly for fixing the stator part, and the top of the base is provided with a driving assembly for driving the rotor part to rotate at one side of the fixing assembly; the driving assembly comprises a fixing frame fixedly connected with the base, an electric push rod fixedly arranged below the top of the fixing frame, a mounting plate fixedly arranged at the bottom of a piston rod of the electric push rod, a motor fixedly connected with the mounting plate, a belt wheel fixedly arranged on an output shaft of the motor and a transmission belt arranged on the belt wheel in a sleeving mode. The inner wall of the bottom of the transmission belt is tightly attached to the bottom of the rotor part. By means of the structure, the driving assembly is movably connected with the rotor part so as to achieve rotation operation of the rotor part, and follow-up detection and maintenance work can be conveniently carried out. And the pulley is simple and efficient to connect and disassemble, so that the efficiency of maintenance and detection is improved, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of slip ring tooling equipment, in particular to a universal variable pitch slip ring maintenance and testing tooling for a wind turbine set. Background Art

[0002] In wind turbines, the pitch slip ring is a key component that controls the pitch angle of wind turbine blades to achieve maximum wind energy capture and stable operation. However, wind turbines are usually faced with long-term operation and harsh working environments, which can easily lead to slip ring wear and jamming, so they need to be regularly maintained and tested.

[0003] In the prior art, after searching, it was found that a Chinese patent disclosed a wind turbine slip ring test device, and its application number is 202022748620.7. The patent mainly includes a slip ring, a driving mechanism and a lifting mechanism. The output end of the driving mechanism is connected to the rotor part of the slip ring. The lifting mechanism is provided with a bearing plate, and the bearing plate is provided with a clamping mechanism for clamping the stator part of the slip ring. The clamping mechanism includes a driving assembly and a pair of clamping blocks. The two clamping blocks are symmetrically arranged on both sides of the stator part of the slip ring, and the driving assembly drives the two clamping blocks to move closer or farther from each other. Although the above-mentioned utility model realizes the clamping or loosening of the slip ring by setting a driving mechanism to drive the two clamping blocks to move closer or farther from each other, the testing device can meet the testing of slip rings of different models and different stator diameters, and it is highly practical. However, when the driving mechanism of the above device drives the rotor part to rotate for testing, it is installed by bolting. The bolt installation is cumbersome and complicated, which makes the disassembly work after the test inconvenient and the test work efficiency low. Moreover, if different types of slip rings of the rotor part are to be used, different connecting components may need to be replaced to connect with the driving mechanism, which is inconvenient to use. Therefore, those skilled in the art provide a universal variable pitch slip ring maintenance and testing tool for wind turbines to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a universal variable pitch slip ring maintenance and testing tool for wind turbines. The slip ring can be quickly fixed and disassembled when the fixing assembly and the connecting assembly are used together. At the same time, the driving assembly is connected to the rotor part in a movable connection to realize the rotation operation of the rotor part, which is convenient for subsequent inspection and maintenance work. The connection and disassembly of the pulley is simple and efficient, which is conducive to improving the efficiency of maintenance and inspection work and has strong practicality.

[0005] To achieve the above-mentioned purpose, a universal variable pitch slip ring maintenance and testing tool for a wind turbine is provided, comprising a base, a stator part of the slip ring and a rotor part of the slip ring, wherein a fixing assembly for fixing the stator part is arranged on the top of the base, and a driving assembly for driving the rotor part to rotate is arranged on one side of the fixing assembly at the top of the base; the driving assembly comprises a fixing frame fixedly connected to the base, an electric push rod fixedly arranged below the top of the fixing frame, a mounting plate fixedly arranged at the bottom of the piston rod of the electric push rod, a motor fixedly connected to the mounting plate, a pulley fixedly arranged on the output shaft of the motor and a transmission belt sleeved on the pulley, wherein the inner wall of the bottom of the transmission belt fits tightly with the bottom of the rotor part.

[0006] According to the universal variable pitch slip ring maintenance and testing tool for a wind turbine, the fixing assembly includes a lower positioning plate fixedly connected to the base, a mounting frame hinged to the top of the lower positioning plate on one side, a screw threadedly connected to the inside of the mounting frame, and an upper positioning plate rotatably connected to the bottom of the screw, the lower positioning plate and the upper positioning plate have opposite sides arranged as arc structures, and the arc structure fits with the outer wall of the stator part, and the lower positioning plate is provided with a connecting assembly for fixing the mounting frame on the side away from the mounting frame hinged, and the connecting assembly is used to realize the detachable operation of the mounting frame and the lower positioning plate.

[0007] According to the universal variable pitch slip ring maintenance and testing tool for a wind turbine, the connecting assembly includes a first fixed plate fixedly connected to the outer side of a lower positioning plate, two movable rods symmetrically slidably arranged inside the first fixed plate, and a connecting plate inserted inside the mounting frame, one end of the two movable rods is commonly fixedly connected to the connecting plate, and the other end is commonly fixedly provided with an operating plate, the outer sides of the two movable rods are fixedly connected to a second fixed plate, and the outer sides of the two movable rods and located on the side of the second fixed plate away from the connecting plate are both provided with springs.

[0008] According to the universal variable pitch slip ring maintenance and testing tool for a wind turbine, anti-slip pads are fixedly provided on the inner walls of the two arc structures.

[0009] According to the universal variable pitch slip ring maintenance and testing tool for wind turbines, two guide rods are symmetrically fixed on the top of the upper positioning plate, and the two guide rods are inserted into the interior of the mounting frame and extend to the top of the mounting frame.

[0010] According to the universal variable pitch slip ring maintenance and testing tool for wind turbines, two handles are symmetrically fixed on the top of the screw rod.

[0011] According to the universal variable pitch slip ring maintenance and testing tool for a wind turbine set, the electric push rod and the motor are both electrically connected to an external control device.

[0012] The utility model has the following beneficial effects:

[0013] Compared with the prior art, the universal variable pitch slip ring maintenance and testing tool for wind turbines can realize the rapid fixing and disassembly of the slip ring under the coordinated use of the fixing component and the connecting component, and the driving component is connected to the rotor part in a movable connection to realize the rotation operation of the rotor part, which is convenient for subsequent inspection and maintenance work. The connection and disassembly of the pulley is simple and efficient, which is conducive to improving the efficiency of maintenance and inspection work and has strong practicality.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a first overall structural schematic diagram of a universal variable pitch slip ring maintenance and testing tool for a wind turbine according to the utility model;

[0017] Figure 2 This is a second overall structural schematic diagram of a universal variable pitch slip ring maintenance and testing tool for a wind turbine according to the utility model;

[0018] Figure 3 This is a third overall structural schematic diagram of a universal variable pitch slip ring maintenance and testing tool for a wind turbine according to the utility model;

[0019] Figure 4 The utility model is a universal variable pitch slip ring maintenance and testing tool for wind turbines Figure 3 Enlarged structural diagram at A in the middle.

[0020] Legend:

[0021] 1. Base; 2. Stator; 3. Rotor; 4. Lower positioning plate; 5. Mounting frame; 6. Upper positioning plate; 7. Fixed frame; 8. Electric push rod; 9. Mounting plate; 10. Motor; 11. Pulley; 12. Transmission belt; 13. Screw rod; 14. Movable rod; 15. Guide rod; 16. First fixed plate; 17. Connecting plate; 18. Second fixed plate; 19. Spring; 20. Operating panel; 21. Anti-skid pad. DETAILED DESCRIPTION

[0022] This section will describe the specific embodiments of the utility model in detail. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model.

[0023] However, it should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1 , Figure 2 and Figure 3 The utility model embodiment is a universal variable pitch slip ring maintenance and testing tool for a wind turbine, which includes a base 1, a stator part 2 of the slip ring and a rotor part 3 of the slip ring, and a fixing component for fixing the stator part 2 is provided on the top of the base 1. On one side of the fixing component, a driving component is installed on the top of the base 1 to drive the rotational movement of the rotor part 3; the driving component includes a fixing frame 7 fixedly connected to the base 1, an electric push rod 8 fixedly arranged below the top of the fixing frame 7, a mounting plate 9 fixedly arranged at the bottom of the piston rod of the electric push rod 8, a motor 10 fixedly connected to the mounting plate 9, a pulley 11 fixedly arranged on the output shaft of the motor 10 and a transmission belt 12 sleeved on the pulley 11, and the inner wall of the bottom of the transmission belt 12 is tightly fitted with the bottom of the rotor part 3, thereby realizing power transmission;

[0025] Specifically, when the stator part 2 of the slip ring is fixed to the top of the base 1 through the fixing assembly, the end of the rotor part 3 is located on the inner side of the transmission belt 12. The electric push rod 8 drives the motor 10 to move upward while driving the transmission belt 12 to move upward and fit closely with the bottom of the rotor part 3. The running motor 10 drives the pulley 11 to rotate under the transmission action of the transmission belt 12, so as to facilitate subsequent inspection and maintenance work. The connection operation between the slip ring and the motor 10 is simple and convenient, which can facilitate the disassembly of the slip ring and the motor 10 after the inspection is completed, and is conducive to improving the efficiency of maintenance and inspection work, and has strong practicality.

[0026] Reference Figure 1 , Figure 2 and Figure 3 , the fixing assembly consists of a lower positioning plate 4, a mounting frame 5, a screw 13 and an upper positioning plate 6. The lower positioning plate 4 is fixedly connected to the base 1, one side of the mounting frame 5 is hinged to the top of the lower positioning plate 4, the screw 13 is threadedly connected to the inside of the mounting frame 5, and the upper positioning plate 6 is rotatably connected to the bottom of the screw 13. The facing sides of the lower positioning plate 4 and the upper positioning plate 6 are both designed as arc structures, and the arc structure fits tightly with the outer wall of the stator part 2. The side of the lower positioning plate 4 away from the hinged mounting frame 5 is also provided with a connecting assembly for fixing the mounting frame 5, and the connecting assembly can realize the detachable operation between the mounting frame 5 and the lower positioning plate 4;

[0027] Specifically, the stator part 2 is placed inside the lower positioning plate 4, and the mounting frame 5 is rotated so that the upper positioning plate 6 is located above the stator part 2. The mounting frame 5 can be fixed under the action of the connecting assembly, and the upper positioning plate 6 is driven by the rotating screw 13 to move downward and fit with the top of the stator part 2, so that the slip ring to be maintained and repaired can be fixed under the action of the lower positioning plate 4 and the upper positioning plate 6, and the fixing and removal of the slip ring are simple and convenient.

[0028] Reference Figure 1 , Figure 3 and Figure 4 The connecting assembly includes a first fixing plate 16 fixedly connected to the outer side of the lower positioning plate 4, two movable rods 14 symmetrically slidably arranged inside the first fixing plate 16, and a connecting plate 17 inserted inside the mounting frame 5. The connecting plate 17 is fixedly connected to one end of the two movable rods 14, and the other end of the two movable rods 14 is fixedly provided with an operating plate 20. The outer sides of the movable rods 14 are fixedly connected with a second fixing plate 18, and on the side of the second fixing plate 18 away from the connecting plate 17, the outer sides of the two movable rods 14 are sleeved with springs 19;

[0029] Specifically, when the mounting frame 5 rotates and needs to cover the lower positioning plate 4, pulling the operating plate 20 to the left can make the connecting plate 17 move to the left under the action of the movable rod 14, thereby facilitating the bottom of the mounting frame 5 to fit with the top of the lower positioning plate 4. Loosening the operating plate 20 can push the movable rod 14 to the right to the inside of the mounting frame 5 under the action of the spring 19, thereby completing the fixing operation of the mounting frame 5, which is beneficial to the subsequent fixing work of the stator part 2. The simple operation makes the connection and separation operations of the mounting frame 5 and the lower positioning plate 4 more convenient and efficient.

[0030] Reference Figure 1 , Figure 2 and Figure 3 The inner walls of the two arc structures are fixed with anti-skid pads 21, which can be made of rubber material and are used to increase the friction between the stator part 2 and the lower positioning plate 4 and the upper positioning plate 6 to ensure the stability of the stator part 2.

[0031] Reference Figure 1 , Figure 2 and Figure 3 , two guide rods 15 are symmetrically fixed on the top of the upper positioning plate 6, and the two guide rods 15 are inserted into the interior of the mounting frame 5 and extend to the top of the mounting frame 5;

[0032] Specifically, when the upper positioning plate 6 moves up and down, it drives the guide rod 15 to slide inside the mounting frame 5, which helps to ensure the stability of the movement of the upper positioning plate 6.

[0033] Reference Figure 1 , Figure 2 and Figure 3Two handles are symmetrically fixed on the top of the screw rod 13. The screw rod 13 can be rotated by rotating the handles, making the movement operation of the upper positioning plate 6 more convenient.

[0034] The electric push rod 8 and the motor 10 are both electrically connected to an external control device, so as to facilitate the control of the operating states of the electric push rod 8 and the motor 10 and facilitate operation and use.

[0035] Working principle: the stator part 2 is placed inside the lower positioning plate 4 and the end of the rotor part 3 is located inside the transmission belt 12. When the rotating mounting frame 5 is covered on the lower positioning plate 4, the operating plate 20 is pulled to the left, and the connecting plate 17 can be moved to the left under the action of the movable rod 14, so that the bottom of the mounting frame 5 is conveniently fitted with the top of the lower positioning plate 4. The operating plate 20 is released, and the movable rod 14 can be pushed to the right to the inside of the mounting frame 5 under the action of the spring 19, so that the fixing operation of the mounting frame 5 can be completed.

[0036] The screw rod 13 is rotated to drive the upper positioning plate 6 to move downward and fit with the top of the stator part 2, so that the slip ring to be maintained and repaired can be fixed under the action of the lower positioning plate 4 and the upper positioning plate 6;

[0037] The operation of the electric push rod 8 drives the motor 10 to move upward and drives the transmission belt 12 to move upward and fit closely with the bottom of the rotor part 3. The operation of the motor 10 drives the pulley 11 to rotate. Under the transmission action of the transmission belt 12, the rotation operation of the rotor part 3 can be realized, so as to facilitate subsequent inspection and maintenance work. The connection operation between the slip ring and the motor 10 is simple and convenient, which can facilitate the disassembly of the slip ring and the motor 10 after the inspection is completed, and is conducive to improving the efficiency of maintenance and inspection work, and has strong practicality.

[0038] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A universal variable pitch slip ring maintenance and testing tool for wind turbines, characterized in that: The invention comprises a base (1), a stator part (2) of a slip ring and a rotor part (3) of the slip ring, wherein a fixing assembly for fixing the stator part (2) is arranged at the top of the base (1), and a driving assembly for driving the rotor part (3) to rotate is arranged on one side of the fixing assembly at the top of the base (1); the driving assembly comprises a fixing frame (7) fixedly connected to the base (1), an electric push rod (8) fixedly arranged below the top of the fixing frame (7), a mounting plate (9) fixedly arranged at the bottom of the piston rod of the electric push rod (8), a motor (10) fixedly connected to the mounting plate (9), a pulley (11) fixedly arranged on the output shaft of the motor (10) and a transmission belt (12) sleeved on the pulley (11), wherein the inner wall of the bottom of the transmission belt (12) is tightly fitted with the bottom of the rotor part (3).

2. A universal variable pitch slip ring maintenance and testing tool for wind turbines according to claim 1, characterized in that: The fixing assembly comprises a lower positioning plate (4) fixedly connected to the base (1), a mounting frame (5) hinged to the top of the lower positioning plate (4) on one side, a screw rod (13) threadedly connected to the inside of the mounting frame (5), and an upper positioning plate (6) rotatably connected to the bottom of the screw rod (13), the lower positioning plate (4) and the upper positioning plate (6) facing each other on one side are both arranged as arc structures, and the arc structures are fitted with the outer wall of the stator part (2), and the lower positioning plate (4) is provided with a connecting assembly for fixing the mounting frame (5) on the side away from the mounting frame (5) hinged, and the connecting assembly is used to realize the detachable operation of the mounting frame (5) and the lower positioning plate (4).

3. A universal variable pitch slip ring maintenance and testing tool for wind turbines according to claim 2, characterized in that: The connecting assembly comprises a first fixed plate (16) fixedly connected to the outer side of the lower positioning plate (4), two movable rods (14) symmetrically slidably arranged inside the first fixed plate (16), and a connecting plate (17) inserted into the mounting frame (5), one end of the two movable rods (14) being fixedly connected to the connecting plate (17), and the other end being fixedly provided with an operating plate (20), the outer sides of the two movable rods (14) being fixedly connected to a second fixed plate (18), and the outer sides of the two movable rods (14) and located on a side of the second fixed plate (18) away from the connecting plate (17) are both sleeved with a spring (19).

4. A universal variable pitch slip ring maintenance and testing tool for wind turbines according to claim 3, characterized in that: Anti-slip pads (21) are fixedly arranged on the inner walls of the two arc structures.

5. A universal variable pitch slip ring maintenance and testing tool for wind turbines according to claim 4, characterized in that: Two guide rods (15) are symmetrically fixed on the top of the upper positioning plate (6), and the two guide rods (15) are inserted into the interior of the mounting frame (5) and extend to the top of the mounting frame (5).

6. A universal variable pitch slip ring maintenance and testing tool for wind turbines according to claim 5, characterized in that: Two handles are symmetrically fixed on the top of the screw rod (13).

7. A universal variable pitch slip ring maintenance and testing tool for wind turbines according to claim 1, characterized in that: The electric push rod (8) and the motor (10) are both electrically connected to external control equipment.

Images