Wind turbine generator collector ring installation device and installation method

Abstract

The present invention provides a wind turbine generator collector ring installation device that is easy to load and unload and has a simple structure. The device is characterized in that it includes a centering device, a sleeve with one end rotatably connected to the centering device, a push-off device arranged on one side of the sleeve, and a handle fixedly connected to the push-off device; the centering device is provided with a through hole; the sleeve is sleeved on the collector ring; the centering device is coaxial with the sleeve; a supporting device is provided at one end of the collector ring; the supporting device passes through the sleeve and is slidably connected with the sleeve; the supporting device is threadedly connected to the push-off device; the supporting device is coaxial with the sleeve; the centering device is sleeved on the generator shaft. The present invention adopts a centering device to avoid assembly difficulties in interference fit, and the repeated centering work caused by inaccurate centering during assembly caused by assembly insertion and then pulling out, thereby reducing operation time and improving work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary tools for installing a wind turbine generator, and in particular relates to a collector ring installation device and an installation method for a wind turbine generator. Background Art

[0002] The quality of the generator in a wind turbine is closely related to the assembly of its accessories. There are two copper slip rings in the generator commutator, called collector rings. The generator rotor is a steel shaft with rolled threads. During the production process, there is an error between the outer diameter of the shaft and the inner diameter of the collector ring. A large interference in the press-fit size will cause damage to the collector ring, and a small interference will cause it to loosen. In addition, during the press-fitting of the collector ring, the uneven pressure used will also cause the collector ring to be unable to be accurately installed on the generator shaft, causing assembly jams or stiffness.

[0003] Large components such as collector rings in wind turbines need to be replaced regularly. When replacing and installing collector rings, due to the space of the wind turbine, the collector rings are difficult to install, which is time-consuming and laborious, and is easy to cause damage. There is no professional equipment for daily removal of collector rings, which is difficult to remove and seriously affects work efficiency.

[0004] In the prior art, the fixing hole of the generator shaft is used to place the collector ring on a disc connected to the screw thread, and the collector ring is brought into the generator shaft through the thread. In this connection method, the push force of the collector ring acts on the generator shaft, and the fixed force point of the collector ring is concentrated on the fixed screw on the generator shaft. Due to the large size of the generator and collector ring of the wind turbine, after a period of use, the screw and the threads on the generator shaft are easily damaged, resulting in unstable fixation of the collector ring, and the threaded hole on the generator shaft is difficult to repair after being damaged. In addition, three force points are used for installation. During the installation process, the collector ring is prone to deviation due to excessive force on one side. After deviation, the installation of the collector ring is more laborious. At the same time, the position of the bolt is not easy to observe and adjust.

[0005] In the prior art, the collector ring is mostly pressed onto the generator shaft by pushing the tooling. When the collector ring is disassembled, such tooling cannot be used, resulting in a low utilization rate of the tooling. Moreover, since there is an interference fit between the inner hole of the collector ring and the generator shaft, the disassembly work is more difficult than the assembly work, and sometimes the collector ring is damaged, resulting in a waste of workpiece materials. The existing tooling for assembling the collector ring does not protect the collector ring. Due to the small disassembly space in the wind turbine, it is easy to cause the outer part of the collector ring to be bumped or damaged during the assembly of the collector ring, which is not conducive to protection. Summary of the invention

[0006] The purpose of the present invention is to provide a wind turbine generator collector ring installation device which is easy to load and unload and has a simple structure, so as to solve the shortcomings of the above-mentioned background technology;

[0007] The second object of the present invention is to provide a method for using the above-mentioned wind turbine generator set collector ring installation device. In order to achieve the above-mentioned object, the technical solution provided by the present invention is as follows:

[0008] A collector ring installation device for a wind turbine generator set, comprising a centering device, a sheath rotatably connected to the centering device at one end, a push-off device arranged at one side of the sheath, and a handle fixedly connected to the push-off device;

[0009] The centering device is provided with a through hole;

[0010] The sheath is sleeved on the collector ring;

[0011] The centering device is coaxial with the sheath;

[0012] A supporting device is provided at one end of the collector ring;

[0013] The supporting device passes through the sheath and is slidably connected to the sheath;

[0014] The supporting device is threadedly connected to the pushing device;

[0015] The support device is coaxial with the sheath;

[0016] The centering device is sleeved on the generator shaft.

[0017] Further: the centering device includes a centering base plate, a first bracket fixedly connected to the sleeve, a first bevel gear motor rotatably connected to the first bracket, and a first bevel gear fixedly connected to the output shaft of the first bevel gear motor; the left end face of the centering base plate is provided with a first plane thread, the right end face of the centering base plate is provided with a first annular tooth adapted to the tooth portion of the first bevel gear, and the first annular tooth is meshed with the first bevel gear for transmission; a centering movable block is provided at the left end of the centering base plate; the first plane thread is a protrusion spirally arranged from the axis center of the centering base plate to the outside circumference; the number of the centering movable blocks is three; the three centering movable blocks are distributed along the central circumference of the centering base plate; the centering movable block is slidably connected to the first plane thread; the fixed shaft is concentric with the centering base plate.

[0018] Further: the supporting movable block is provided with a centering movable block thread adapted to the first plane thread; the cross-section of the first plane thread is T-shaped; an inverted T-shaped groove adapted to the first plane thread is provided on one side of the centering movable block thread; the first plane thread and the centering movable block thread have the same pitch.

[0019] Further: the supporting device includes a supporting base plate, a fixed shaft passing through the axis of the supporting base plate, a second bracket fixedly connected to the fixed shaft, a second bevel gear motor fixedly connected to the second bracket, and a second bevel gear fixedly connected to the output shaft of the second bevel gear motor; the left end surface of the supporting base plate is provided with a second planar thread, the right end surface of the supporting base plate is provided with a second annular tooth matched with the tooth portion of the second bevel gear, and the second annular tooth is meshed with the second bevel gear for transmission; a supporting movable block is provided at the left end of the supporting base plate; the second planar thread is a protrusion spirally arranged from the axis of the supporting base plate to the outer circumference; the number of the supporting movable blocks is three; the three supporting movable blocks are distributed along the central circumference of the supporting base plate; the supporting movable block is slidably connected to the second planar thread; the supporting base plate is rotatably sleeved on the fixed shaft.

[0020] Further: the supporting block is provided with a supporting block thread adapted to the second plane thread; the cross-section of the second plane thread is T-shaped; an inverted T-shaped groove adapted to the second plane thread is provided on one side of the supporting block thread; the second plane thread is equal to the supporting block thread pitch.

[0021] Further: the push-off device includes a top shaft and a push plate fixedly arranged on the right side of the top shaft; the top shaft is evenly arranged on one end surface of the push plate; a handle is arranged on the other end surface of the push plate; the handle is located at the center of the push plate; the top shaft passes through the sleeve horizontally.

[0022] Further: an angular thrust ball bearing is arranged between the supporting base plate and the fixed shaft; angular thrust ball bearings are respectively arranged at both ends of the supporting base plate; the angular thrust ball bearings at both ends are both provided with retaining rings; an axial groove matched with the retaining ring is arranged on the fixed shaft; a hole groove matched with the retaining ring is arranged on the supporting base plate; the retaining ring is arranged between the axial groove and the hole groove.

[0023] Further: a centering arc surface with the same outer diameter as the fixed shaft is provided near one end of the centering movable block close to the fixed shaft; a steel ball hole is provided on the centering arc surface; a steel ball is provided in the steel ball hole; the steel ball does not fall out of the centering arc surface.

[0024] Furthermore: one end of the fixed shaft of the supporting movable block is provided with a supporting arc matched with the inner hole of the collector ring; the arc length of the supporting arc is less than one quarter of the diameter of the collector ring.

[0025] The above-mentioned method for using the collector ring installation device of a wind turbine generator set has the following implementation steps:

[0026] Step 1: fixedly connect the fixed shaft in the support device to the generator shaft; connect the push-off device to the fixed shaft;

[0027] Step 2: Connect the centering device to the sheath, put the collector ring into the sheath, and sleeve it into the fixed shaft;

[0028] Step 3: Start the first bevel gear motor and lock the outer circumference of the generator shaft with the centering block;

[0029] Step 4: Start the second bevel gear motor, and support the movable block to lock the inner hole of the collector ring;

[0030] Step 5: Shake the handle to push the collector ring completely into the generator shaft;

[0031] Step 6: Start the second bevel gear motor in reverse, and the supporting moving block shrinks toward the center of the supporting bottom plate and separates from the inner hole of the collector ring;

[0032] Step 7: Reversely start the first bevel gear motor, and the centering movable block expands away from the center of the generator shaft and separates from the outer circumference of the generator shaft;

[0033] Step 8: Pull out the generator collector ring installation device of the wind turbine generator set to separate the installed collector ring.

[0034] Compared with the prior art, the beneficial effects

[0035] 1. The present invention adopts a centering device to make the device concentric with the axis of the generator shaft. The supporting device of the collector ring in the device is concentric with the axis of the generator shaft. Through the mechanical centering of three centering movable blocks and then through the mechanical centering of three supporting movable blocks, the collector ring and the generator shaft are concentric with high precision, which is convenient for installation and reduces the assembly difficulties caused by the eccentricity of the generator shaft and the inner hole of the collector ring during installation. It avoids the assembly difficulties in interference fit, the repeated centering work caused by inaccurate centering during assembly, and reduces the operation time and improves work efficiency.

[0036] 2. The present invention adopts a supporting movable block in the supporting device, and also adopts a three-point supporting method, so that the inner hole of the collector ring is expanded outward along the axis concentric with the generator. In the interference fit between the shaft and the hole, the interference amount is generally a few millimeters. The supporting device expands the inner hole of the collector ring so that the collector ring can be smoothly installed on the generator shaft.

[0037] 3. The present invention adopts a threaded progressive structure. When the handle is rotated, the support device supporting the inner hole of the collector ring rotates and also has a linear feed motion. This structure simulates the action during manual assembly, which can avoid jamming, make the assembly process smoother, and improve assembly efficiency.

[0038] 4. The present invention adopts a sheath connection support device and a centering device. Since the outer circle of the collector ring is made of non-metallic material, bumps during the assembly process will affect the functional effect of the collector ring. Placing the collector ring in the sheath can protect the collector ring from bumps and can also play a connecting role.

[0039] 5. The present invention uses the opening and closing of the motor to control the locking and loosening actions of the centering device and the supporting device, thereby avoiding manual operation in a narrow wind turbine set, reducing manual work tasks and improving assembly efficiency.

[0040] 6. The present invention can be used as a device for assembling the collector ring onto the generator shaft and disassembling the collector ring from the generator shaft, integrating the assembly and disassembly functions into one, reducing the numerous tooling tools caused by the diversification of assembly and maintenance devices, and eliminating the need to replace and carry a variety of tooling equipment. The present invention is suitable for the installation and maintenance of generators for outdoor wind turbines.

[0041] 7. The present invention requires less manual operation and is easy to operate. The size of the mechanical structure of the present invention is designed according to the size of the collector ring. The assembly or disassembly steps are simple and easy for operators to master. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Attached Figure 1 It is a schematic cross-sectional view of embodiment 1 of the present invention;

[0043] Attached Figure 2 It is a schematic diagram of the main structure of the present invention;

[0044] Attached Figure 3 It is a left-side structural schematic diagram of the present invention;

[0045] Attached Figure 4 It is a structural schematic diagram of the centering device of the present invention;

[0046] Attached Figure 5 It is a schematic diagram of the main structure of the support device of the present invention;

[0047] Attached Figure 6 It is a left-side structural schematic diagram of the supporting device of the present invention;

[0048] Attached Figure 7It is a schematic diagram of the cross-sectional view of the embodiment 2 of the present invention. Among them, 1 centering device; 11 centering base plate; 12 first plane thread; 13 first annular tooth; 14 first bevel gear motor; 15 first bevel gear; 16 centering movable block; 161 centering movable block thread; 162 centering arc surface; 163 steel ball; 17 first bracket; 2 sleeve; 3 support device; 31 support base plate; 32 second plane thread; 33 second annular tooth; 34 second bevel gear motor; 35 second bracket; 36 second bevel gear; 37 fixed shaft; 38 support movable block; 39 angular thrust ball bearing; 310 retaining ring; 311 support arc; 312 connecting shaft; 4 push device; 41 top shaft; 42 push plate; 43 handle; cylinder 44; 5 generator shaft; 6 collector ring. DETAILED DESCRIPTION

[0049] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0050] It should be explained that the terms "length", "width", "up", "down", "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a display of the present invention.

[0051] like Figure 1 , 2 As shown in Figure 3, a collector ring installation device for a wind turbine generator set comprises a centering device 1, a sleeve 2 rotatably connected to the centering device 1 at one end, a push-off device 4 arranged at one side of the sleeve 2, and a handle 43 fixedly connected to the push-off device 4; the centering device 1 is provided with a through hole; the sleeve 2 is sleeved on the collector ring 6; the centering device 1 is coaxial with the sleeve 2; a supporting device 3 is provided at one end of the collector ring 6; the supporting device 3 penetrates the sleeve 2 and is slidably connected to the sleeve 2; the supporting device 3 is threadedly connected to the push-off device 4; the supporting device 3 is coaxial with the sleeve 2; the centering device 1 is sleeved on the generator shaft 5.

[0052] The generator shaft 5 is locked by the centering device 1, the installation device is concentric with the generator shaft 5, the centering device 1 is concentric with the sheath 2, the support device 3 is concentric with the sheath 2, the support device 3 passes through the sheath to support the inner hole of the collector ring 6, and the collector ring 6 is pushed to be installed on the generator shaft 5 by the push-off device 4. The collector ring 6 is pulled out of the generator shaft 5 by the centering device 1 and the push-off device 4, and the support device 3 opens the inner hole of the collector ring 6 until the collector ring 6 is removed.

[0053] like Figure 2 , 3As shown in , 4, the centering device 1 includes a centering base plate 11, a first bracket 17 fixedly connected to the sleeve 2, a first bevel gear motor 14 fixedly connected to the first bracket 17, and a first bevel gear 15 fixedly connected to the output shaft of the first bevel gear motor 14; the left end face of the centering base plate 11 is provided with a first plane thread 12, the right end face of the centering base plate 11 is provided with a first annular tooth 13 adapted to the tooth portion of the first bevel gear 15, and the first annular tooth 13 is meshed with the first bevel gear 15 for transmission; a centering movable block 16 is provided at the left end of the centering base plate 11; the first plane thread 12 is a protrusion spirally arranged from the axis of the centering base plate 11 to the outside circumference; the number of the centering movable blocks 16 is three; the three centering movable blocks 16 are distributed along the central circumference of the centering base plate 11; the centering movable block 16 is slidably connected with the first plane thread 12.

[0054] The centering movable block 16 is provided with a centering movable block thread 161 adapted to the first planar thread 12; the cross-section of the first planar thread 12 is T-shaped; an inverted T-shaped groove adapted to the first planar thread 12 is provided on one side of the centering movable block thread 161; the first planar thread 12 and the centering movable block thread 161 have the same pitch.

[0055] The working process is as follows: start the first bevel gear motor 14, the first bevel gear motor 14 drives the first bevel gear 15 to rotate, the first bevel gear 15 drives the centering base plate 11 to rotate, and the first plane thread 12 arranged on the left end face rotates with the centering base plate 11, and the first plane thread 12 and the centering movable block thread 161 generate relative motion, so that the three centering movable blocks 16 are locked on the generator shaft 5, thereby centering the installation device.

[0056] like Figure 5 , 6As shown, the support device 3 includes a support base plate 31, a fixed shaft 37 passing through the axis of the support base plate 31, a second bracket 35 fixedly connected to the fixed shaft 37, a second bevel gear motor 34 fixedly connected to the second bracket 35, and a second bevel gear 36 fixedly connected to the output shaft of the second bevel gear motor 34; the left end surface of the support base plate 31 is provided with a second plane thread 32, the right end surface of the support base plate 31 is provided with a second annular tooth 33 adapted to the tooth portion of the second bevel gear 36, and the second annular tooth 33 is meshed with the second bevel gear 36 for transmission; a support movable block 38 is provided at the left end of the support base plate 31; the second plane thread 32 is a protrusion spirally arranged from the axis of the support base plate 31 to the outer circumference; the number of the support movable blocks 38 is three; the three support movable blocks 38 are distributed along the central circumference of the support base plate 31; the support movable block 38 is slidably connected with the second plane thread 32; the support base plate 31 is rotatably sleeved on the fixed shaft 37. The support block 38 is provided with a support block thread that matches the second plane thread 32; the cross section of the second plane thread 32 is T-shaped; an inverted T-shaped groove that matches the second plane thread 32 is provided on one side of the support block thread. The fixed shaft 37 is concentric with the centering base plate 11. Its working process is the same as that of the centering device 1, and the axis center of the inner hole of the collector ring is concentric with the axis center of the generator shaft through three support blocks.

[0057] like Figure 2 , 3 As shown in Figures 4 and 5, the push-off device 4 includes a top shaft 41 and a push plate 42 fixedly arranged on the right side of the top shaft 41; the top shaft 41 is evenly arranged on one end surface of the push plate 42; a handle 43 is arranged on the other end surface of the push plate 42; the handle 43 is located at the center of the push plate 42; the top shaft 41 passes through the sheath 2 horizontally.

[0058] Its working process: the manual remote control handle 43 rotates the push plate 42, and the push plate 42 drives the sheath 2 to rotate. Since the fixed shaft 37 is fixedly connected to the generator shaft 5, the fixed shaft 37 is fixed and does not move. The push plate 42 is threadedly connected to the fixed shaft 37, that is, the push plate 42 spirally pushes forward, and the pushing distance of one circle is the pitch of the fixed shaft 37. The top shaft 41 fixedly welded on the push plate 42 is three in this embodiment, and can also be multiple in other embodiments, in order to increase the action surface of the collector ring 6, so that the collector ring 6 is evenly stressed when it is pushed forward, and there will be no tilt on one side. The three top shafts 41 act on the end face of the collector ring 6, so that the collector ring 6 is sleeved on the generator shaft 5.

[0059] An angular thrust ball bearing 39 is arranged between the supporting base plate 31 and the fixed shaft 37; angular thrust ball bearings 39 are respectively arranged at both ends of the supporting base plate 31; the angular thrust ball bearings 39 at both ends are both provided with retaining rings 310; an axial groove matched with the retaining ring is arranged on the fixed shaft 37; a hole groove matched with the retaining ring is arranged on the supporting base plate 31; the retaining ring 310 is arranged between the axial groove and the hole groove.

[0060] The centering movable block 16 is provided with a centering arc surface 162 having the same outer diameter as the fixed shaft 37 at one end close to the generator shaft 5 ; a steel ball hole is opened on the centering arc surface 162 ; a steel ball 163 is arranged in the steel ball hole; the steel ball 163 does not fall out of the centering arc surface 162 .

[0061] The support movable block 38 is provided with a support arc 311 adapted to the inner hole of the collector ring 6 at one end of the fixed shaft 37 ; the arc length of the support arc 311 is less than one quarter of the diameter of the collector ring 6 .

[0062] As for the above-mentioned wind turbine generator set generator collector ring installation device, its working steps are as follows: the steps of installing the collector ring 6 into the generator shaft 5: Step 1: fix the fixed shaft 37 in the supporting device 3 to the generator shaft 5; thread the push plate 42 in the push-off device 4 to the fixed shaft 37; Step 2: connect the centering device 1 to the sleeve 2 through an angular thrust ball bearing, put the collector ring 6 into the sleeve 2, and make the inner hole of the collector ring 6 be sleeved on the fixed shaft 37 and the supporting base plate 31 of the supporting device 3; Step 3: start the first bevel gear motor 14, the first bevel gear 15 rotates, driving the centering base plate 11 to rotate, and the centering movable block 16 locks the outer circumference of the generator shaft 5 through the sliding of the first plane thread 12 and the centering movable block thread 161; Step 4: start the second bevel gear motor 34, the second bevel gear 36 rotates, driving the supporting base plate 31 to rotate, through the second plane thread 32 slides with the thread of the supporting movable block, so that the supporting movable block 38 locks the inner hole of the collector ring 6; Step 5: Shake the handle 43, and through the threaded transmission of the fixed shaft 37 and the push plate 41, the collector ring 6 is rotated and fed toward the generator shaft 5. When the left end face of the supporting base plate 31 contacts the generator shaft 5, continue to shake the handle 43 to push the collector ring 6 completely into the generator shaft 5; Step 6: Reversely start the second bevel gear motor 34, the supporting movable block 38 shrinks toward the center of the supporting base plate 31 and disengages from the inner hole of the collector ring 6; Step 7: Reversely start the first bevel gear motor 14, the centering movable block 16 expands away from the center of the generator shaft 5 and disengages from the outer circumference of the generator shaft 5; so that the centering base plate 11 and the centering movable block 16 can be completely disengaged from the outer circumference of the collector ring 6; Step 8: Pull out the collector ring installation device of the wind turbine generator set to disengage the installed collector ring 7; Step 9: Remove the fixed shaft 37 and the push-off device 4.

[0063] Steps for removing the collector ring 6 from the generator shaft 5: Step 1: fix the fixed shaft 37 in the support device 3 to the generator shaft 5; thread the push plate 42 in the push-off device 4 to the fixed shaft 37; Step 2: start the first bevel gear motor 14, the first bevel gear 15 rotates, driving the centering base plate 11 to rotate, and the centering movable block 16 locks the outer circumference of the generator shaft 5 through the sliding of the first plane thread 12 and the centering movable block thread 161; Step 3: shake the handle 43 in the opposite direction, through the fixed shaft 37 and the push plate 41 thread transmission, the centering movable block 16 contacts the end face of the collector ring 6, and generates a pulling force on the collector ring 6, when the collector ring 6 is pulled out a distance, it reaches the support base plate 31; Step 4: Start the second bevel gear motor 34, the second bevel gear 36 rotates, driving the support base plate 31 to rotate, and the second plane thread 32 slides with the support movable block thread, so that the support movable block 38 locks the inner hole of the collector ring 6, so that the remaining collector ring 6 can be disengaged from the generator shaft 5; Step 5: until the collector ring 6 is completely disengaged from the generator shaft 5, start the second bevel gear motor 34 in reverse, the support movable block 38 shrinks toward the center of the support base plate 31 and disengages from the inner hole of the collector ring 6; Step 6: Start the first bevel gear motor 14 in reverse, the centering movable block 16 expands away from the center of the generator shaft 5 and disengages from the outer circumference of the generator shaft 5; Step 7: Take out the collector ring 6 from the sheath 2; Step 8: Remove the fixed shaft 37 and the push-off device 4.

[0064] Example 2

[0065] like Figure 7 As shown, a collector ring installation device for a wind turbine generator set includes a centering device 1, a sleeve 2 fixedly connected to the centering device 1, a push-off device 4 fixedly connected to one side of the sleeve 2, and a cylinder 44 fixedly connected to the push-off device 4; the centering device 1 is provided with a through hole; the sleeve 2 is sleeved on the collector ring 6; the centering device 1 is coaxial with the sleeve 2; a supporting device 3 is provided at one end of the collector ring 6; the supporting device 3 is fixedly connected to the sleeve 2 through a connecting shaft 312; the cylinder 44 is fixed on a bracket provided on a generator base, and the supporting device 3 is coaxial with the sleeve 2; the centering device 1 is sleeved on the generator shaft 5.

[0066] The difference from Example 1 is that the handle 43 and the fixed shaft 37 are cancelled, and the supporting device 3 is fixed to the sleeve 2 by the connecting shaft 312. After the centering device 1 is centered, the cylinder 44 is started to push the collector ring 6 onto the engine shaft 5. When the end face of the supporting device 3 contacts the generator shaft, the part that has not been fully installed into the generator shaft 5 continues to be pushed in by the cylinder 44.

[0067] The embodiments of the present invention have been shown and described. It will be understood by those skilled in the art that various modifications, changes, substitutions and variations may be made to the embodiments without departing from the principles of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A collector ring installation device for a wind turbine generator set, characterized in that: It comprises a centering device (1), a sheath (2) with one end rotatably connected to the centering device (1), a push-off device (4) arranged on one side of the sheath (2), a handle (43) fixedly connected to the push-off device (4), and a collector ring (6) arranged at the axis of the centering device (1); The centering device (1) is provided with a through hole; The sheath (2) is sleeved on the collector ring (6); The centering device (1) is coaxial with the sleeve (2); A supporting device (3) is provided at one end of the collector ring (6); The supporting device (3) passes through the sheath (2) and is slidably connected to the sheath (2); The supporting device (3) is threadedly connected to the pushing device (4); The supporting device (3) is coaxial with the sheath (2); The centering device (1) is sleeved on the generator shaft (5); The centering device (1) comprises a centering base plate (11), a first bracket (17) fixedly connected to the sleeve (2), a first bevel gear motor (14) rotatably connected to the first bracket (17), and a first bevel gear (15) fixedly connected to an output shaft of the first bevel gear motor (14); The left end surface of the centering base plate (11) is provided with a first plane thread (12), and the right end surface of the centering base plate (11) is provided with a first annular tooth (13) adapted to the tooth portion of the first bevel gear (15), and the first annular tooth (13) is meshed with the first bevel gear (15) for transmission; A centering movable block (16) is provided at the left end of the centering bottom plate (11); The first planar thread (12) is a protrusion that is spirally arranged from the axis of the centering base plate (11) to the outside of the centering base plate (11); the number of the centering movable blocks (16) is three; The three centering movable blocks (16) are distributed along the central circumference of the centering base plate (11); the centering movable blocks (16) are slidably connected to the first plane thread (12); The support device (3) comprises a support base plate (31), a fixed shaft (37) passing through the axis of the support base plate (31), a second bracket (35) fixedly connected to the fixed shaft (37), a second bevel gear motor (34) fixedly connected to the second bracket (35), and a second bevel gear (36) fixedly connected to the output shaft of the second bevel gear motor (34); a second plane thread (32) is provided on the left end surface of the support base plate (31), and a second annular tooth (33) adapted to the tooth portion of the second bevel gear (36) is provided on the right end surface of the support base plate (31), and the second annular tooth (33) is adapted to the tooth portion of the second bevel gear (36). The second bevel gear (36) is meshed for transmission; a supporting movable block (38) is provided at one end of the supporting base plate (31); the second planar thread (32) is a protrusion that is spirally arranged from the axis of the supporting base plate (31) to the outer circumference; the number of the supporting movable blocks (38) is three; the three supporting movable blocks (38) are distributed along the central circumference of the supporting base plate (31); the supporting movable block (38) is slidably connected to the second planar thread (32); the supporting base plate (31) is rotatably sleeved on the fixed shaft (37); the centering base plate (11) is a circular plate; the fixed shaft (37) is concentric with the centering base plate (11); The push-off device (4) comprises a top shaft (41) and a push plate (42) fixedly arranged on the right side of the top shaft (41); the top shaft (41) is evenly arranged on one end surface of the push plate (42); a handle (43) is arranged on the other end surface of the push plate (42); the handle (43) is away from the axis of the push plate (42); and the top shaft (41) passes through the sleeve (2) transversely.

2. A wind turbine generator set generator collector ring installation device according to claim 1, characterized in that: The centering movable block (16) is provided with a centering movable block thread (161) adapted to the first planar thread (12); the cross section of the first planar thread (12) is T-shaped; an inverted T-shaped groove adapted to the first planar thread (12) is provided on one side of the centering movable block thread (161); the first planar thread (12) and the centering movable block thread (161) have the same pitch.

3. A wind turbine generator collector ring installation device according to claim 1, characterized in that: The supporting movable block (38) is provided with a supporting movable block thread matched with the second planar thread (32); the cross section of the second planar thread (32) is T-shaped; an inverted T-shaped groove matched with the second planar thread (32) is provided on one side of the supporting movable block thread; the second planar thread (32) and the supporting movable block thread have the same pitch.

4. A wind turbine generator set generator collector ring installation device according to claim 1, characterized in that: An angular thrust ball bearing (39) is provided between the support base plate (31) and the fixed shaft (37); the angular thrust ball bearings (39) at both ends are provided with retaining rings (310); an axial groove matching the retaining ring is provided on the fixed shaft (37); a hole groove matching the retaining ring is provided on the support base plate (31); and the retaining ring (310) is provided between the axial groove and the hole groove.

5. A wind turbine generator set generator collector ring installation device according to claim 1, characterized in that: A centering arc surface (162) having the same outer diameter as the fixed shaft (37) is provided at one end of the centering movable block (16) close to the fixed shaft (37); a steel ball hole is provided on the centering arc surface (162); a steel ball (163) is provided in the steel ball hole; and the steel ball (163) does not fall out of the centering arc surface (162).

6. A wind turbine generator collector ring installation device according to claim 1, characterized in that: A supporting circular arc (311) adapted to the inner hole of the collector ring (6) is provided at one end of the supporting movable block (38) away from the fixed shaft (37); the supporting circular arc (311) is fixedly connected to the supporting movable block (38).

7. The method for using the collector ring installation device for a wind turbine generator set according to claim 1, characterized in that: The implementation steps are as follows: Step 1: fixedly connecting the fixed shaft (37) in the supporting device (3) to the generator shaft (5); connecting the push-off device (4) to the fixed shaft (37); Step 2: Connect the centering device (1) to the sheath (2), place the collector ring (6) into the sheath (2), and sleeve it into the fixed shaft (37); Step 3: starting the first bevel gear motor (14) and locking the outer circumference of the generator shaft (5) with the centering movable block (16); Step 4: Start the second bevel gear motor (34) and support the movable block (38) to lock the inner hole of the collector ring (6); Step 5: Shake the handle (43) to push the collector ring (6) completely into the generator shaft (5); Step 6: Start the second bevel gear motor (34) in reverse, so that the supporting movable block (38) contracts toward the center of the supporting base plate (31) and disengages from the inner hole of the collector ring (6); Step 7: Reversely start the first bevel gear motor (14), so that the centering movable block (16) expands away from the center of the generator shaft (5) and separates from the outer circumference of the generator shaft (5); Step 8: Pull out the generator collector ring installation device of the wind turbine generator set to separate the installed collector ring (6).

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