Device and method for replacing generator of wind turbine generator

Abstract

The invention discloses a wind turbine generator replacement device and method.The wind turbine generator replacement device comprises clamping manipulator assemblies, a generator lifting appliance assembly, a control system assembly, a detection device and a sun shaft connecting tool, the sun shaft connecting tool is arranged at one end of a sun shaft, and the clamping manipulator assemblies are arranged on the two sides of a generator; the clamping device is used for clamping a sun shaft connecting tool to disassemble and assemble a generator, the generator lifting appliance assembly is arranged above the generator and used for lifting the generator, the control system assembly is arranged on the generator lifting appliance assembly and used for controlling lifting of the generator lifting appliance assembly, and the detection device is arranged at the end of the generator and connected with the control system assembly. The detector is used for detecting the coaxiality of the sun shaft and the generator and sending control information to the control system. The device effectively avoids the situation that the sun shaft is not supported in the downwind direction in the generator dismounting process, meanwhile, it is guaranteed that the relative position of the sun shaft to the generator is fixed, the generator and the sun shaft are prevented from being damaged, and safety in the hoisting process is effectively guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind turbine generator replacement, and in particular relates to a wind turbine generator replacement device and method. Background Art

[0002] When replacing the generator of the integrated main transmission chain structure of a large offshore wind turbine, there are many disassembly processes. The high-speed sun shaft of the gearbox is inserted into the generator. In order to save the weight of the cabin and reduce the size of the cabin during manufacturing, the space inside the cabin is small (the space inside the cabin is small and is limited by the surrounding structures such as the rear frame inside the cabin). The generator is difficult to disassemble and install and replace, and it is easy to damage the gearbox sun shaft, generator and other cabin parts, and the replacement risk is relatively high. Therefore, the generator replacement device and method in the prior art has become an important bottleneck restricting the replacement efficiency and reducing the replacement cost. Summary of the invention

[0003] In order to at least partially solve the technical problems existing in the above-mentioned prior art, the present invention provides a device and method for replacing a generator of a wind turbine set.

[0004] The wind turbine generator replacement device of the present invention comprises a clamping manipulator assembly, a generator hanger assembly, a control system assembly, a detection device and a sun shaft connection tooling, wherein the sun shaft connection tooling is arranged at one end of the sun shaft, the clamping manipulator assembly is arranged at both sides of the generator, and is used to clamp the sun shaft connection tooling to disassemble and assemble the generator, the generator hanger assembly is arranged above the generator, and is used to hang the generator, the control system assembly is arranged on the generator hanger assembly, and is used to control the hoisting of the generator hanger assembly, the detection device is arranged at the end of the generator and connected to the control system assembly, and is used to detect the coaxiality of the sun shaft and the generator and send control information to the control system, wherein:

[0005] The clamping manipulator assembly includes a motor assembly, a motor connecting shaft assembly, a first oil cylinder, a second oil cylinder, a supporting connecting rod assembly, a supporting guide rod assembly, a gear driving support frame, a gear and a positioning detection device, the first oil cylinder is arranged on the motor assembly, the second oil cylinder is arranged on the first oil cylinder, the supporting connecting rod assembly is arranged on the second oil cylinder, the supporting guide rod assembly is arranged at both ends of the supporting connecting rod assembly, a motor connecting shaft assembly is arranged between the first oil cylinder and the motor assembly, between the second oil cylinder and the first oil cylinder, between the supporting connecting rod assembly and the second oil cylinder, and between the supporting connecting rod assembly and the supporting guide rod assembly, the gears are evenly distributed on the supporting connecting rod assembly and the supporting guide rod assembly through the gear driving support frame, and the positioning detection device is symmetrically arranged on both sides of the gear driving support frame for detecting the position of the gear;

[0006] The generator sling assembly includes a sling frame, an upper sling, an upper sling adjustable assembly, an axially adjustable counterweight assembly, a radially adjustable counterweight assembly, a lower sling, a lower sling sliding assembly and a lower sling adjustable assembly. The upper sling is arranged at the upper end of the sling frame for connection with a crane. The upper sling adjustable assembly is arranged on the upper sling for adjusting the length of the upper sling. The axially adjustable counterweight assembly is axially symmetrically arranged on the sling frame for axially adjusting the balance of the sling frame. The radially adjustable counterweight assembly is radially symmetrically arranged on the sling frame for radially adjusting the balance of the sling frame. The lower sling is arranged at the lower end of the sling frame through the lower sling sliding assembly for slinging the generator set. The lower sling adjustable assembly is arranged on the lower sling for adjusting the length of the lower sling.

[0007] Furthermore, in the above-mentioned wind turbine generator replacement device, the support connecting rod assembly is arranged in a C shape.

[0008] Furthermore, in the above-mentioned wind turbine generator replacement device, the motor connecting shaft assembly includes a driving motor and a driving gear, and the driving motor is respectively installed at the bottom of the first oil cylinder, the bottom of the second oil cylinder, the installation location of the supporting connecting rod assembly and one side of the installation location of the supporting guide rod assembly, and the output end of the motor assembly, the output end of the first oil cylinder, the output end of the second oil cylinder and the middle of the connecting end of the supporting connecting rod assembly are all provided with gear grooves, the gear grooves match the driving gear, the driving gear is engaged with the gear grooves, and the output end of the driving motor is keyed to the driving gear.

[0009] Furthermore, in the above-mentioned wind turbine generator replacement device, a rotating motor is provided at the bottom of the second oil cylinder, and an output end of the rotating motor is connected to the cylinder body of the second oil cylinder through a gear.

[0010] Furthermore, in the above-mentioned wind turbine generator replacement device, the sun shaft connecting tool is threadedly engaged with the sun shaft, a rack is provided in the circumferential direction of the sun shaft connecting tool, the rack pitch is equal to the rack pitch in the circumferential direction of the sun shaft, and the gear matches the rack.

[0011] Furthermore, in the above-mentioned wind turbine generator replacement device, the control system includes a controller, a hydraulic system and a power system, the hydraulic system control end and the power system control end are both connected to the controller output end, and the controller input end is connected to the detection device.

[0012] Furthermore, in the above-mentioned wind turbine generator replacement device, the upper suspension belt adjustable component includes a first fall chain and a second fall chain, and the first fall chain and the second fall chain are respectively arranged on both sides of the upper suspension belt;

[0013] The lower sling adjustable assembly comprises a third fall chain and a fourth fall chain, and the third fall chain and the fourth fall chain are respectively arranged on both sides of the lower sling;

[0014] The control ends of the first fall chain, the second fall chain, the third fall chain and the fourth fall chain are respectively connected to the output end of the power system.

[0015] Furthermore, in the above-mentioned wind turbine generator replacement device, the axially adjustable counterweight assembly includes an axial slide rail and an axial counterweight, the axial slide rail is symmetrically mounted on both axial sides of the hanger frame, and the axial counterweight is slidably arranged on the axial slide rail;

[0016] The radially adjustable counterweight assembly comprises a radial slide rail and a radial counterweight, wherein the radial slide rail is symmetrically mounted on both radial sides of the hanger frame, and the radial counterweight is slidably arranged on the radial slide rail;

[0017] The lower sling sliding assembly comprises a sling slide rail and a mounting slide, wherein the sling slide rail is mounted at the bottom of the sling frame, the mounting slide is slidably arranged on the sling slide rail, and the lower sling is fixedly connected to the mounting slide;

[0018] The axial counterweight, the radial counterweight and the mounting slide control end are respectively connected to the output end of the hydraulic system.

[0019] The wind turbine generator replacement method of the present invention comprises:

[0020] When replacing the generator, the generator fixing parts are first removed. At this time, the upper sling is adjusted by the control system through the upper sling adjustable assembly to make the sling frame in a horizontal state, and the lower sling sliding assembly is controlled by the control system to adapt to the width of the removed engine, and the lower sling is adjusted by the lower sling adjustable assembly through the control system to connect the lower sling to the generator, and the sun shaft connecting tooling is connected to the sun shaft;

[0021] At this time, the generator is lifted by the generator hoisting assembly, so that the generator is moved a distance downwind along the direction of the sun axis, and the clamping manipulator assembly is installed on both sides of the generator. At this time, the motor assembly is driven to make the first cylinders on the clamping manipulator assemblies on both sides face the upwind direction and the downwind direction respectively, and the first cylinder and the second cylinder are driven respectively to make the supporting connecting rod assembly close to the sun axis and the sun axis connecting tooling. At this time, the positioning detection device controls the motor connecting shaft assembly to perform fine adjustment so that the gears installed on the supporting connecting rod assembly and the supporting guide rod assembly through the gear driving support frame are respectively meshed with the racks on the sun axis and the sun axis connecting tooling;

[0022] At this time, the gear is driven by the support frame to provide power to the gear so that the gear drives the rack to move toward the removal side. During this process, the generator hoisting assembly hoisting the generator also moves accordingly, and the coaxiality of the sun shaft and the generator is detected in real time through the detection device. When the sun shaft and the generator are not coaxial, the detection device sends a control command to the control system component to control and adjust the upper sling adjustable assembly, the axially adjustable counterweight assembly, the radially adjustable counterweight assembly and the lower sling adjustable assembly to keep the sun shaft and the generator coaxial at all times until the generator is hoisted out of the cabin, completing the disassembly and replacement of the generator.

[0023] The wind turbine generator replacement device and method of the present invention have the following advantages and beneficial effects:

[0024] The present invention utilizes the cooperation of the sun shaft circumferential rack, the sun shaft connecting tooling and the clamping manipulator assembly to make the sun shaft move along with the generator during the movement process, thereby avoiding the sun shaft being unsupported in the downwind direction during the disassembly of the generator, and at the same time ensuring that the relative position of the sun shaft and the generator is fixed, effectively avoiding damage to the generator and the sun shaft;

[0025] The detection device can detect the coaxiality of the sun shaft and the generator in real time, and the control system component can control the generator hoist assembly to automatically adjust the center of gravity to ensure that the overall center of gravity of the generator, sun shaft, and clamping manipulator assembly remains on the same plumb line with the hook, ensuring the safety of the entire hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the present invention and constitute a part of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0027] Figure 1 This is a schematic diagram of the installation structure of the wind turbine generator replacement device of the present invention;

[0028] Figure 2 A schematic diagram of the installation structure of the clamping manipulator assembly of the wind turbine generator replacement device of the present invention;

[0029] Figure 3 A schematic diagram of the structure of a generator hanger assembly of a wind turbine generator replacement device of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the clamping manipulator assembly of the wind turbine generator replacement device of the present invention;

[0031] Figure 5 for Figure 4 The cross-sectional structural diagram of AA in the figure shows the installation structure of the motor connecting shaft assembly of the wind turbine generator replacement device of the present invention;

[0032] Figure 6 A schematic diagram of the structure of the sun shaft connection tooling of the wind turbine generator replacement device of the present invention;

[0033] Figure 7 A schematic diagram of the connection of the generator hanger assembly during the implementation of the wind turbine generator replacement method of the present invention;

[0034] Figure 8 It is a schematic diagram of the position of the generator after the generator is lifted and moved by the generator lifting device assembly during the implementation of the wind turbine generator replacement method of the present invention;

[0035] Fig. 9 A schematic diagram of a generator removal process during implementation of the wind turbine generator replacement method of the present invention;

[0036] Fig.10 It is a schematic diagram of the wind turbine generator replacement method of the present invention after the generator is removed;

[0037] Fig.11 It is a schematic diagram of generator hoisting during the implementation of the wind turbine generator replacement method of the present invention.

[0038] Description of reference numerals:

[0039] 100: gearbox; 200: sun shaft; 300: generator;

[0040] 1: Clamping robot assembly, 11: Motor assembly;

[0041] 12: motor connecting shaft assembly, 121: driving motor, 122: driving gear, 13: first oil cylinder, 14: second oil cylinder, 141: rotating motor, 15: supporting connecting rod assembly, 16: supporting guide rod assembly, 17: gear driving support frame, 18: gear, 19: positioning detection device;

[0042] 2: generator lifting device assembly, 21: lifting device frame, 22: upper lifting belt, 23: upper lifting belt adjustable assembly, 231: first fall chain, 232: second fall chain, 24: axial adjustable counterweight assembly, 241: axial slide rail, 242: axial counterweight, 25: radial adjustable counterweight assembly, 251: radial slide rail, 252: radial counterweight, 26: lower lifting belt, 27: lower lifting belt sliding assembly, 271: lifting belt slide rail, 272: installation slide, 28: lower lifting belt adjustable assembly, 281: third fall chain, 282: fourth fall chain;

[0043] 3: control system components, 31: controller, 32: hydraulic system, 33: power system;

[0044] 4: Detection device;

[0045] 5: sun shaft connection tooling, 51: rack;

[0046] 6: Gear slot. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0048] like Figures 1 to 6 As shown, the wind turbine generator replacement device of the present invention includes a clamping manipulator assembly 1, a generator hanger assembly 2, a control system assembly 3, a detection device 4 and a sun shaft connection tool 5, the sun shaft connection tool 5 is arranged at one end of the sun shaft, the clamping manipulator assembly 1 is arranged on both sides of the generator 300, and is used to clamp the sun shaft connection tool 5 to disassemble and assemble the generator, the generator hanger assembly 2 is arranged above the generator 300, and is used to hang the generator 300, the control system assembly 3 is arranged on the generator hanger assembly 2, and is used to control the hoisting of the generator hanger assembly 2, and the detection device 4 is arranged at the end of the generator 300 and connected to the control system assembly 3, and is used to detect the coaxiality of the sun shaft and the generator and send control information to the control system, wherein:

[0049] The clamping manipulator assembly 1 includes a motor assembly 11, a motor connecting shaft assembly 12, a first oil cylinder 13, a second oil cylinder 14, a supporting connecting rod assembly 15, a supporting guide rod assembly 16, a gear driving support frame 17, a gear 18 and a positioning detection device 19. The first oil cylinder 13 is arranged on the motor assembly 11, the second oil cylinder 14 is arranged on the first oil cylinder 13, the supporting connecting rod assembly 15 is arranged on the second oil cylinder 14, and the supporting guide rod assembly 16 is arranged at both ends of the supporting connecting rod assembly 15. The motor connecting shaft assembly 12 is arranged between the first oil cylinder 13 and the motor assembly 11, between the second oil cylinder 14 and the first oil cylinder 13, between the supporting connecting rod assembly 15 and the second oil cylinder 14, and between the supporting connecting rod assembly 15 and the supporting guide rod assembly 16. The gear 18 is evenly distributed on the supporting connecting rod assembly 15 and the supporting guide rod assembly 16 through the gear driving support frame 17. The positioning detection device 19 is symmetrically arranged on both sides of the gear driving support frame 17 for detecting the position of the gear 18;

[0050] The generator hoist assembly 2 includes a hoist frame 21, an upper hoisting belt 22, an upper hoisting belt adjustable assembly 23, an axially adjustable counterweight assembly 24, a radially adjustable counterweight assembly 25, a lower hoisting belt 26, a lower hoisting belt sliding assembly 27 and a lower hoisting belt adjustable assembly 28. The upper hoisting belt 22 is arranged at the upper end of the hoist frame 21 for connecting to a crane. The upper hoisting belt adjustable assembly 23 is arranged on the upper hoisting belt 22 for adjusting the length of the upper hoisting belt 22. The axially adjustable counterweight assembly 24 is axially symmetrically arranged on the hoist frame 21 for axially adjusting the balance of the hoist frame 21. The radially adjustable counterweight assembly 25 is radially symmetrically arranged on the hoist frame 21 for radially adjusting the balance of the hoist frame 21. The lower hoisting belt 26 is arranged at the lower end of the hoist frame 21 through the lower hoisting belt sliding assembly 27 for hoisting the generator 300. The lower hoisting belt adjustable assembly 28 is arranged on the lower hoisting belt 26 for adjusting the length of the lower hoisting belt 26.

[0051] Furthermore, in the above-mentioned wind turbine generator replacement device, the supporting connecting rod assembly 15 is arranged in a C-shape, so as to facilitate the clamping manipulator assembly 1 to clamp around the sun axis.

[0052] Furthermore, in the above-mentioned wind turbine generator replacement device, the motor connecting shaft assembly 12 includes a driving motor 121 and a driving gear 122. The driving motor 121 is respectively installed at the bottom of the first cylinder 13, the bottom of the second cylinder 14, the installation location of the supporting connecting rod assembly 15 and one side of the installation location of the supporting guide rod assembly 16. The output end of the motor assembly 11, the output end of the first cylinder 13, the output end of the second cylinder 14 and the middle of the connecting end of the supporting connecting rod assembly 15 are all provided with a gear groove 6. The gear groove 6 matches the driving gear 122, and the driving gear 122 is engaged with the gear groove 6. The output end of the driving motor 121 is key-connected with the driving gear 122, so that the first cylinder 13, the second cylinder 14, the supporting connecting rod assembly 15 and the supporting guide rod assembly 16 can move and rotate with multiple degrees of freedom, effectively ensuring the flexibility of the clamping robot assembly 1.

[0053] Furthermore, in the above-mentioned wind turbine generator replacement device, a rotating motor 141 is arranged at the bottom of the second cylinder 14, and the output end of the rotating motor 141 is connected to the cylinder body of the second cylinder 14 through a gear, thereby effectively ensuring that the second cylinder 14 can rotate, making it convenient for the gear to drive the gear 18 on the support frame 17 to correspond to the rack 51 on the sun shaft.

[0054] Furthermore, in the above-mentioned wind turbine generator replacement device, the sun shaft connecting tooling 5 is threadedly engaged with the sun shaft, and a rack 51 is provided in the circumferential direction of the sun shaft connecting tooling 5. The tooth pitch of the rack 51 is equal to the tooth pitch of the rack in the circumferential direction of the sun shaft, and the gear 18 is matched with the rack 51, so that the sun shaft can be driven to move in the rotation direction of the gear 18 by rotating the gear 18 and engaging with the rack 51, thereby ensuring smooth disassembly and installation of the sun shaft.

[0055] Furthermore, in the above-mentioned wind turbine generator replacement device, the control system includes a controller 31, a hydraulic system 32 and a power system 33. The control end of the hydraulic system 32 and the control end of the power system 33 are both connected to the output end of the controller 31, and the input end of the controller 31 is connected to the detection device 4, so that a control signal is sent to the controller 31 through the detection device 4, and the controller 31 controls the output of the hydraulic system 32 and the power system 33 according to the control signal.

[0056] Furthermore, in the above-mentioned wind turbine generator replacement device, the upper suspension belt adjustable component 23 includes a first fall chain 231 and a second fall chain 232, and the first fall chain 231 and the second fall chain 232 are respectively arranged on both sides of the upper suspension belt 22, so that the heights of both sides of the upper suspension belt 22 can be adjusted respectively;

[0057] The lower sling adjustable assembly 28 includes a third fall chain 281 and a fourth fall chain 282, and the third fall chain 281 and the fourth fall chain 282 are respectively arranged on both sides of the lower sling 26, so that the heights of both sides of the lower sling 26 can be adjusted respectively;

[0058] The control ends of the first fall chain 231, the second fall chain 232, the third fall chain 281 and the fourth fall chain 282 are respectively connected to the output end of the power system 33, so that the control and adjustment of the first fall chain 231, the second fall chain 232, the third fall chain 281 and the fourth fall chain 282 can be realized by controlling the output of the power system 33 by the controller 31.

[0059] Furthermore, in the above-mentioned wind turbine generator replacement device, the axially adjustable counterweight assembly 24 includes an axial slide rail 241 and an axial counterweight 242, the axial slide rail 241 is symmetrically mounted on both axial sides of the hanger frame 21, and the axial counterweight 242 is slidably mounted on the axial slide rail 241, so that the axial hoisting angle of the hanger frame 21 can be adjusted by adjusting the axial counterweight 242;

[0060] The radially adjustable counterweight assembly 25 includes a radial slide rail 251 and a radial counterweight 252. The radial slide rail 251 is symmetrically mounted on both radial sides of the hanger frame 21. The radial counterweight 252 is slidably mounted on the radial slide rail 251. Thus, the radial lifting angle of the hanger frame 21 can be adjusted by adjusting the radial counterweight 252.

[0061] The lower sling sliding assembly 27 includes a sling slide rail 271 and a mounting slide 272. The sling slide rail 271 is mounted at the bottom of the sling frame 21. The mounting slide 272 is slidably arranged on the sling slide rail 271. The lower sling 26 is fixedly connected to the mounting slide 272. Thus, the hoisting distance between the lower slings 26 can be adjusted by adjusting the mounting slide 272.

[0062] The control ends of the axial counterweight 242, radial counterweight 252 and mounting slide 272 are respectively connected to the output ends of the hydraulic system 32, so that the sliding direction and distance of the axial counterweight 242, radial counterweight 252 and mounting slide 272 can be controlled and adjusted by controlling the output of the hydraulic system 32 according to the controller 31.

[0063] Therefore, during the process of hoisting the generator 300, dynamic adaptive adjustment is performed between the tilted and horizontal working conditions of the generator 300 through the first fall chain 231, the second fall chain 232, the third fall chain 281, the fourth fall chain 282, the axially adjustable counterweight assembly 24 and the radially adjustable counterweight assembly 25.

[0064] The wind turbine generator replacement method of the present invention comprises:

[0065] like Figure 7 As shown, when the generator 300 is replaced, the fixing parts of the generator 300 are first removed. At this time, the control system controls the first fall chain 231 and the second fall chain 232 of the upper sling adjustable assembly 23 to adjust the upper slings 22 on both sides so that the sling frame 21 is in a horizontal state. The control system controls the lower sling sliding assembly 27 to adapt to the width of the removed engine, and the control system controls the lower sling adjustable assembly 28 to adjust the lower sling 26 so that the lower sling 26 is connected to the generator 300, and the sun shaft connecting tool 5 is connected to the sun shaft 200.

[0066] like Figure 8 As shown, at this time, the generator 300 is hoisted by the generator hoist assembly 2, so that the generator 300 is moved a distance downwind along the direction of the sun shaft 200, and the clamping manipulator assembly 1 is installed on both sides of the generator 300. At this time, the motor assembly 11 is driven to make the first cylinders 13 on the clamping manipulator assemblies 1 on both sides face the upwind direction and the downwind direction respectively, and the first cylinder 13 and the second cylinder 14 are driven respectively to make the supporting connecting rod assembly close to the sun shaft 200 and the sun shaft connecting fixture 5. At this time, the positioning detection device 19 controls the motor connecting shaft assembly 12 to perform fine adjustment so that the gears 18 installed on the supporting connecting rod assembly 15 and the supporting guide rod assembly 16 through the gear driving support frame 17 are respectively engaged with the rack 51 on the sun shaft 200 and the sun shaft connecting fixture 5;

[0067] like Figure 9-11As shown, at this time, the gear 18 is powered by the gear-driven support frame 17 so that the gear 18 drives the rack 51 to move toward the dismantling side. During this process, the generator hoist assembly 2 hoisting the generator 300 also moves accordingly, and the coaxiality of the sun shaft 200 and the generator 300 is detected in real time by the detection device 4. When the sun shaft 200 and the generator 300 are not coaxial, the detection device 4 sends a control command to the control system assembly 3 to control and adjust the upper sling adjustable assembly 23, the axially adjustable counterweight assembly 24, the radially adjustable counterweight assembly 25 and the lower sling adjustable assembly 28, so that the sun shaft 200 and the generator 300 always remain coaxial until the generator 300 is hoisted out of the cabin, and the disassembly and replacement of the generator 300 is completed.

[0068] In summary, compared with the prior art, the wind turbine generator replacement device and method of the present invention have the following advantages and beneficial effects: the present invention utilizes the cooperation of the sun shaft circumferential rack, the sun shaft connection tooling and the clamping manipulator assembly to make the sun shaft move with the generator during the movement process, thereby avoiding the sun shaft being unsupported in the downwind direction during the disassembly of the generator, and at the same time ensuring that the relative position of the sun shaft and the generator is fixed, effectively avoiding damage to the generator and the sun shaft;

[0069] The detection device can detect the coaxiality of the sun shaft and the generator in real time, and the control system component can control the generator hoist assembly to automatically adjust the center of gravity to ensure that the overall center of gravity of the generator, sun shaft, and clamping manipulator assembly remains on the same plumb line with the hook, ensuring the safety of the entire hoisting.

[0070] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected 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 the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wind turbine generator replacement device, characterized in that: The wind turbine generator replacement device includes a clamping manipulator assembly, a generator hanger assembly, a control system assembly, a detection device and a sun shaft connection tooling, wherein the sun shaft connection tooling is arranged at one end of the sun shaft, the clamping manipulator assembly is arranged at both sides of the generator, and is used to clamp the sun shaft connection tooling to disassemble and assemble the generator, the generator hanger assembly is arranged above the generator, and is used to hang the generator, the control system assembly is arranged on the generator hanger assembly, and is used to control the hoisting of the generator hanger assembly, the detection device is arranged at the end of the generator and connected to the control system assembly, and is used to detect the coaxiality of the sun shaft and the generator and send control information to the control system, wherein: The clamping manipulator assembly includes a motor assembly, a motor connecting shaft assembly, a first oil cylinder, a second oil cylinder, a supporting connecting rod assembly, a supporting guide rod assembly, a gear driving support frame, a gear and a positioning detection device, the first oil cylinder is arranged on the motor assembly, the second oil cylinder is arranged on the first oil cylinder, the supporting connecting rod assembly is arranged on the second oil cylinder, the supporting guide rod assembly is arranged at both ends of the supporting connecting rod assembly, a motor connecting shaft assembly is arranged between the first oil cylinder and the motor assembly, between the second oil cylinder and the first oil cylinder, between the supporting connecting rod assembly and the second oil cylinder, and between the supporting connecting rod assembly and the supporting guide rod assembly, the gears are evenly distributed on the supporting connecting rod assembly and the supporting guide rod assembly through the gear driving support frame, and the positioning detection device is symmetrically arranged on both sides of the gear driving support frame for detecting the position of the gear; The generator sling assembly includes a sling frame, an upper sling, an upper sling adjustable assembly, an axially adjustable counterweight assembly, a radially adjustable counterweight assembly, a lower sling, a lower sling sliding assembly and a lower sling adjustable assembly. The upper sling is arranged at the upper end of the sling frame for connection with a crane. The upper sling adjustable assembly is arranged on the upper sling for adjusting the length of the upper sling. The axially adjustable counterweight assembly is axially symmetrically arranged on the sling frame for axially adjusting the balance of the sling frame. The radially adjustable counterweight assembly is radially symmetrically arranged on the sling frame for radially adjusting the balance of the sling frame. The lower sling is arranged at the lower end of the sling frame through the lower sling sliding assembly for slinging the generator set. The lower sling adjustable assembly is arranged on the lower sling for adjusting the length of the lower sling.

2. The wind turbine generator replacement device according to claim 1, characterized in that: The supporting connecting rod assembly is arranged in a C shape.

3. The wind turbine generator replacement device according to claim 1, characterized in that: The motor connecting shaft assembly includes a driving motor and a driving gear, and the driving motor is respectively installed at the bottom of the first oil cylinder, the bottom of the second oil cylinder, the installation location of the supporting connecting rod assembly and one side of the installation location of the supporting guide rod assembly. The output end of the motor assembly, the output end of the first oil cylinder, the output end of the second oil cylinder and the middle of the connecting end of the supporting connecting rod assembly are all provided with gear grooves, and the gear grooves match the driving gears, and the driving gears are engaged with the gear grooves, and the output end of the driving motor is key-connected to the driving gear.

4. The wind turbine generator replacement device according to claim 1, characterized in that: A rotary motor is arranged at the bottom of the second oil cylinder, and an output end of the rotary motor is connected to the cylinder body of the second oil cylinder through a gear.

5. The wind turbine generator replacement device according to claim 1, characterized in that: The sun shaft connecting tool is threadedly engaged with the sun shaft, a rack is provided in the circumferential direction of the sun shaft connecting tool, the rack pitch is equal to the rack pitch in the circumferential direction of the sun shaft, and the gear matches the rack.

6. The wind turbine generator replacement device according to claim 1, characterized in that: The control system includes a controller, a hydraulic system and a power system. The hydraulic system control end and the power system control end are both connected to the controller output end, and the controller input end is connected to the detection device.

7. The wind turbine generator replacement device according to claim 6, characterized in that: The upper sling adjustable assembly comprises a first fall chain and a second fall chain, wherein the first fall chain and the second fall chain are respectively arranged on both sides of the upper sling; The lower sling adjustable assembly comprises a third fall chain and a fourth fall chain, and the third fall chain and the fourth fall chain are respectively arranged on both sides of the lower sling; The control ends of the first fall chain, the second fall chain, the third fall chain and the fourth fall chain are respectively connected to the output end of the power system.

8. The wind turbine generator replacement device according to claim 6, characterized in that: The axially adjustable counterweight assembly comprises an axial slide rail and an axial counterweight, wherein the axial slide rail is symmetrically mounted on both axial sides of the hanger frame, and the axial counterweight is slidably arranged on the axial slide rail; The radially adjustable counterweight assembly comprises a radial slide rail and a radial counterweight, wherein the radial slide rail is symmetrically mounted on both radial sides of the hanger frame, and the radial counterweight is slidably arranged on the radial slide rail; The lower sling sliding assembly comprises a sling slide rail and a mounting slide, wherein the sling slide rail is mounted at the bottom of the sling frame, the mounting slide is slidably arranged on the sling slide rail, and the lower sling is fixedly connected to the mounting slide; The axial counterweight, the radial counterweight and the mounting slide control end are respectively connected to the output end of the hydraulic system.

9. A replacement method for a wind turbine generator implemented by using the wind turbine generator replacement device according to any one of claims 1 to 8, characterized in that: The wind turbine generator replacement method comprises: When replacing the generator, the generator fixing parts are first removed. At this time, the upper sling is adjusted by the control system through the upper sling adjustable assembly to make the sling frame in a horizontal state, and the lower sling sliding assembly is controlled by the control system to adapt to the width of the removed engine, and the lower sling is adjusted by the lower sling adjustable assembly through the control system to connect the lower sling to the generator, and the sun shaft connecting tooling is connected to the sun shaft; At this time, the generator is lifted by the generator hoisting assembly, so that the generator is moved a distance downwind along the direction of the sun axis, and the clamping manipulator assembly is installed on both sides of the generator. At this time, the motor assembly is driven to make the first cylinders on the clamping manipulator assemblies on both sides face the upwind direction and the downwind direction respectively, and the first cylinder and the second cylinder are driven respectively to make the supporting connecting rod assembly close to the sun axis and the sun axis connecting tooling. At this time, the positioning detection device controls the motor connecting shaft assembly to perform fine adjustment so that the gears installed on the supporting connecting rod assembly and the supporting guide rod assembly through the gear driving support frame are respectively meshed with the racks on the sun axis and the sun axis connecting tooling; At this time, the gear is driven by the support frame to provide power to the gear so that the gear drives the rack to move toward the removal side. During this process, the generator hoisting assembly hoisting the generator also moves accordingly, and the coaxiality of the sun shaft and the generator is detected in real time through the detection device. When the sun shaft and the generator are not coaxial, the detection device sends a control command to the control system component to control and adjust the upper sling adjustable assembly, the axially adjustable counterweight assembly, the radially adjustable counterweight assembly and the lower sling adjustable assembly to keep the sun shaft and the generator coaxial at all times until the generator is hoisted out of the cabin, completing the disassembly and replacement of the generator.

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