Assembly tool and assembly method

Abstract

The invention provides an assembling tool and an assembling method.The assembling tool is used for assembling a shaft system of a wind generating set, the shaft system comprises a first shaft system component and a second shaft system component, the assembling tool comprises an assembling base, the assembling base is provided with a clamping structure, and the clamping structure can clamp the shaft system component at the hoisting angle; the assembly base is arranged on the base and can rotate in the vertical plane to drive the clamped shafting component to rotate to the horizontal direction, the assembly base comprises a first assembly base body and a second assembly base body, the first assembly base body is used for clamping the first shafting component, the second assembly base body is used for clamping the second shafting component, and the first assembly base body and the second assembly base body can move close to each other in the horizontal plane. And the first shafting component and the second shafting component are driven to be opposite to each other in the horizontal direction and are assembled. According to the invention, the height requirement during shafting assembly can be obviously reduced, the limitation of the assembly space height on the size of a shafting component is reduced, and the engineering practical application of a large-size shafting can be realized.

Description

Technical Field

[0001] The present disclosure relates to the field of wind power generation, and more specifically, to an assembly tool and an assembly method. Background Art

[0002] As the power of wind power industry continues to increase, the main shafts and bearing seats of onshore and offshore wind turbines are getting larger and heavier. The maximum length of the two shaft system components manufactured so far exceeds 5 meters, and the weight of a single piece exceeds 40 tons.

[0003] At the same time, the main shaft and the bearing seat are mostly assembled by vertical lifting, which requires a higher assembly space. The size of the shaft system components has shown a trend of continuing to increase. If the traditional assembly method continues to be used, the size of the shaft system components will be restricted by the height of the assembly plant. In addition, the current fixed height of the trolley has basically reached the highest height of the assembly plant. If it is too high, the trolley cannot be used for lifting and assembly, which in turn limits the actual engineering application of large-size shaft systems. Summary of the invention

[0004] Therefore, how to reduce the restrictions of assembly space on the size of shaft system components is crucial for the practical engineering application of large-size shaft systems.

[0005] In a general aspect, an assembly tool is provided for assembling the shaft system of a wind turbine generator set, the shaft system comprising a first shaft system component and a second shaft system component, the assembly tool comprising an assembly seat, the assembly seat being provided with a clamping structure, the clamping structure being capable of clamping the shaft system component at a lifting angle, and being capable of rotating in a vertical plane to drive the clamped shaft system component to rotate to a horizontal direction, wherein the assembly seat comprises a first assembly seat and a second assembly seat, the first assembly seat being used for clamping and rotating the first shaft system component, the second assembly seat being used for clamping and rotating the second shaft system component so that the first shaft system component and the second shaft system component are opposite to each other in a horizontal direction, and the first assembly seat and the second assembly seat being capable of being relatively close to each other in a horizontal plane so that the first shaft system component and the second shaft system component are relatively close to each other and assembled.

[0006] Optionally, the assembly seat is also provided with a locking device, which is used to lock the clamping structure at at least two preset angular positions in a vertical plane, and the at least two preset angular positions include a first angular position in which the shaft system component clamped by the clamping structure is at a lifting angle and a second angular position in a horizontal direction.

[0007] Optionally, the clamping structure includes a support plate, a turntable and a clamping claw, the extended surface of the support plate is roughly parallel to the relative movement direction of the first assembly seat and the second assembly seat, the turntable is embedded in the support plate and can rotate relative to the support plate, the clamping claw is provided on the surface of the turntable for clamping the shaft system component; the locking device is used to lock the turntable at the at least two preset angle positions.

[0008] Optionally, an avoidance gap is further provided on the side of the turntable; the locking device includes an elastic slider and at least two positioning gaps, the elastic slider is provided in the avoidance gap and can retract into the avoidance gap under pressure, the at least two positioning gaps are provided on the inner side wall of the support plate facing the turntable, when the turntable rotates to any of the preset angle positions, the avoidance gap faces one of the at least two positioning gaps, so that the elastic slider is inserted into the positioning gap facing the avoidance gap, thereby limiting the rotation of the turntable.

[0009] Optionally, the clamping structure further comprises a supporting portion, which is arranged at the bottom of the clamping jaw, and the supporting portion is used to support the shaft system component.

[0010] Optionally, the assembly seat also includes a rotation drive device, which is used to drive the clamping structure to rotate in a vertical plane. The rotation drive device includes a rotation drive motor and a power supply circuit. The power supply circuit is used to supply power to the rotation drive motor in a conductive state. A switch is provided on the power supply circuit. The switch can be closed when the locking device is in an unlocked state to turn on the power supply circuit. The switch can also be disconnected when the locking device is in a locked state to disconnect the power supply circuit.

[0011] Optionally, when the locking device is in an unlocked state, the switch element is closed as the clamping structure leaves the preset angle position, and the switch element is also disconnected as the clamping structure reaches the preset angle position; the rotation drive device also includes a backup power supply circuit connected in parallel with the power supply circuit, and a backup switch element is provided on the backup power supply circuit. When the switch element is disconnected as the clamping structure reaches the preset angle position, the backup switch element is closed to turn on the backup power supply circuit, so that the rotation drive device can be energized and drive the clamping structure to rotate away from the preset angle position, so as to close the switch element and turn on the power supply circuit; the rotation drive device can also disconnect the backup switch element when the power supply circuit is turned on, so as to realize independent power supply of the power supply circuit.

[0012] Optionally, the assembly seat is further provided with a baffle, which is arranged opposite to the support plate and located on a side of the support plate where the turntable is arranged, and the baffle is used to block the side of the shaft system component to prevent the shaft system component from falling off.

[0013] Optionally, at least one of the support plate and the baffle plate is capable of moving toward or away from the other.

[0014] Optionally, the assembly seat is also provided with a centering device, and the support plate and the baffle are respectively located at two ends of the centering device, and the centering device is used to drive the support plate and the baffle to move towards each other, so that the center of the shaft system component clamped on the support plate moves to the set position of the centering device, and the center of the first shaft system component is aligned with the center of the second shaft system component by aligning the set positions of the first assembly seat and the second assembly seat.

[0015] Optionally, the bottom of the support plate and the baffle are both provided with plate body sliders; the centering device includes two rotating arms connected in a cross-rotating manner, the two rotating arms are embedded with centering sliders, and the centering sliders are connected to the plate body sliders. The centering sliders can move along the slide rails of the two rotating arms toward the intersection center of the two rotating arms as the two rotating arms rotate, so as to drive the support plate and the baffle to move toward each other via the plate body sliders.

[0016] Optionally, the assembly seat is further provided with a slider track, and the plate body slider is embedded in the slider track and can move along the slider track.

[0017] Optionally, the plate body slider is rotatably connected to the centering slider, and the rotation axes of the plate body slider and the centering slider are substantially parallel to the rotation axes of the two rotating arms.

[0018] Optionally, the setting position of the centering device on the assembly seat is adjustable, so that the setting position is adjustable.

[0019] Optionally, the lifting angle is a vertical angle.

[0020] Optionally, the assembly tool further includes an assembly track, and at least one of the first assembly seat and the second assembly seat is adapted to the assembly track and can reciprocate along the assembly track.

[0021] In another general aspect, an assembly method is provided for assembling a shaft system of a wind turbine generator set based on an assembly tool according to an embodiment of the present disclosure, the shaft system comprising a first shaft system component and a second shaft system component, the assembly method comprising: hoisting the first shaft system component and the second shaft system component to the first assembly seat and the second assembly seat, respectively; rotating the clamping structures of the first assembly seat and the second assembly seat to drive the first shaft system component and the second shaft system component to rotate toward each other to a horizontal direction; driving the first assembly seat and the second assembly seat to move closer to each other to achieve assembly of the first shaft system component and the second shaft system component.

[0022] The present disclosure proposes an assembly tool and an assembly method. By configuring a clamping structure that can rotate in a vertical plane on an assembly seat, the first shaft system component or the second shaft system component can be hoisted and fixed first, and then flipped to a horizontal direction so that the first shaft system component and the second shaft system component are opposite to each other in the horizontal direction, and finally the first shaft system component and the second shaft system component are horizontally assembled by means of the relative proximity of the two assembly seats. When the assembly scheme of the present disclosure is adopted, even if the size of the shaft system component is increased, its assembly can be achieved by increasing the installation space in the horizontal direction, thereby significantly reducing the height requirement for shaft system assembly, reducing the limitation of the assembly space height on the size of the shaft system component, and facilitating the practical engineering application of large-size shaft systems. At the same time, unlike the situation in which the lifting rope is easy to shake, difficult to control, difficult to ensure assembly accuracy, and difficult and inefficient to assemble during hoisting assembly, the present invention can first hoist the first shaft system component and the second shaft system component onto the clamping structure. At this time, since the requirement for assembly accuracy is relatively low, it can also be conveniently completed by hoisting. Thereafter, the first shaft system component and the second shaft system component can be stably flipped to a horizontal direction by rotating the clamping structure, which can improve the convenience of operation and control accuracy, and can effectively reduce the swing of the shaft system components. Finally, the assembly is achieved with the help of the relative proximity of the two assembly seats. The entire assembly process has high stability, which helps to reduce the safety hazards caused by shaking, ensure assembly accuracy, reduce assembly difficulty, improve assembly efficiency, and reduce damage to shaft system components during assembly due to subjective reasons such as unskilled operators.

[0023] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects and features of the present invention will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0025] Figure 1 is a schematic diagram showing the overall structure of an assembly tool according to an embodiment of the present disclosure;

[0026] Figure 2 is a cross-sectional view showing the entire mounting seat in the YOZ plane according to an embodiment of the present disclosure;

[0027] Figure 3 is a schematic structural diagram showing a centering device according to an embodiment of the present disclosure;

[0028] Figure 4 is a cross-sectional view showing a partial assembly seat in an XOZ plane according to an embodiment of the present disclosure;

[0029] Figure 5 is a flow chart illustrating an assembly method according to an embodiment of the present disclosure.

[0030] Figures 1 to 4 Description of Figure Numbers:

[0031] 1: assembly seat; 1a: first assembly seat; 1b: second assembly seat;

[0032] 10: clamping structure; 11: support plate; 111: plate slider; 112: centering gear roller; 113: centering rack; 12: turntable; 121: avoidance gap; 13: clamping claw; 14: supporting part;

[0033] 20: locking device; 21: elastic slider; 22: positioning notch;

[0034] 30: baffle;

[0035] 40: centering device; 41: rotating arm; 42: centering slider; 43: center hole; 44: self-aligning gear roller; 45: self-aligning rack; 46: self-aligning cylinder;

[0036] 50: Slider track;

[0037] 60: Assemble the gear roller;

[0038] 2: Assemble the track;

[0039] 3: Base. DETAILED DESCRIPTION

[0040] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be clear. For example, the order of operations described herein is only an example and is not limited to those orders set forth herein, but can be changed as will be clear after understanding the disclosure of the present application, except for operations that must occur in a specific order. In addition, for greater clarity and simplicity, the description of features known in the art may be omitted.

[0041] The features described herein can be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided to illustrate only some of the many possible ways to implement the methods, devices, and / or systems described herein, which will be clear after understanding the disclosure of the present application.

[0042] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more.

[0043] Although terms such as "first", "second", and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions should not be limited by these terms. Instead, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, first component, first region, first layer, or first portion referred to in the examples may also be referred to as the second member, second component, second region, second layer, or second portion.

[0044] In the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, or “coupled to” another element, the element may be directly “on”, “connected to”, or “coupled to” another element, or one or more other elements may be present therebetween. Conversely, when an element is described as being “directly on”, “directly connected to”, or “directly coupled to” another element, there may be no other elements present therebetween.

[0045] The terms used herein are only used to describe various examples and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprise", "include" and "have" indicate the presence of the described features, quantities, operations, components, elements and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof.

[0046] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by a person of ordinary skill in the art to which the present disclosure belongs after understanding the present disclosure. Unless explicitly defined as such herein, terms (such as those defined in a general dictionary) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present disclosure, and should not be interpreted in an idealized or overly formal manner.

[0047] Furthermore, in the description of examples, when it is considered that a detailed description of a well-known related structure or function would cause vague interpretation of the present disclosure, such a detailed description will be omitted.

[0048] The following will be combined Figures 1 to 5 The assembly tool and assembly method provided by the embodiments of the present disclosure are introduced.

[0049] An embodiment of one aspect of the present disclosure provides an assembly tool for assembling the shaft system of a wind turbine generator set, wherein the shaft system includes a first shaft system component and a second shaft system component. Specifically, the shaft system includes a main shaft, a bearing, and a bearing seat. The first shaft system component mainly refers to the main shaft, and the second shaft system component mainly refers to the bearing. According to the actual assembly situation, fine-tuning can be made around this main division method. As an example, the main shaft can be used as the first shaft system component, and the bearing can be first installed on the bearing seat, and then the bearing seat with the bearing installed can be used as the second shaft system component; for rolling bearings including an inner ring and an outer ring, the inner ring can also be assembled to the main shaft, and the whole can be used as the first shaft system component, and the outer ring can be assembled to the bearing seat, and the whole can be used as the second shaft system component.

[0050] like Figure 1 As shown, the assembly tool includes an assembly seat 1, and the assembly seat 1 is provided with a clamping structure 10. The clamping structure 10 can clamp the shaft system component at a lifting angle, and can rotate in a vertical plane to drive the clamped shaft system component to rotate to a horizontal direction, wherein the assembly seat 1 includes a first assembly seat 1a and a second assembly seat 1b, the first assembly seat 1a is used to clamp and rotate the first shaft system component, and the second assembly seat 1b is used to clamp and rotate the second shaft system component, so that the first shaft system component and the second shaft system component are opposite to each other in a horizontal direction, and the first assembly seat 1a and the second assembly seat 1b can be relatively close in the horizontal plane, so that the first shaft system component and the second shaft system component are relatively close and assembled. As an example, one of the assembly seats 1 can be fixed and the other assembly seat 1 can be movable, so that the shaft system assembly is achieved by moving one of the assembly seats 1. For example, Figure 1 As shown, the first assembly seat 1a is fixed and the second assembly seat 1b is movable, which is not limited in the present disclosure.

[0051] According to the assembly tool of the embodiment of the present disclosure, by configuring a clamping structure 10 that can rotate in a vertical plane on the assembly seat 1, the first shaft system component or the second shaft system component can be hoisted and fixed first, and then flipped to the horizontal direction so that the first shaft system component and the second shaft system component are opposite to each other in the horizontal direction, and finally the first shaft system component and the second shaft system component are horizontally assembled by means of the relative proximity of the two assembly seats 1. When the assembly scheme of the present disclosure is adopted, even if the size of the shaft system component is increased, its assembly can be achieved by increasing the installation space in the horizontal direction, thereby significantly reducing the height requirement during the shaft system assembly, reducing the limitation of the assembly space height on the size of the shaft system component, and helping to realize the practical engineering application of large-size shaft systems. At the same time, unlike the situation in which the lifting rope is easy to shake, difficult to control, difficult to ensure assembly accuracy, and difficult and inefficient to assemble during hoisting assembly, the present invention can first hoist the first shaft system component and the second shaft system component onto the clamping structure 10. At this time, since the requirement for assembly accuracy is relatively low, it can also be conveniently completed by hoisting. Thereafter, the first shaft system component and the second shaft system component can be stably flipped to a horizontal direction by rotating the clamping structure 10, which can improve the convenience of operation and control accuracy, and can effectively reduce the swing of the shaft system components. Finally, the assembly is achieved by means of the relative movement of the two assembly seats 1. The entire assembly process has high stability, which helps to reduce the safety hazards caused by shaking, ensure assembly accuracy, reduce assembly difficulty, improve assembly efficiency, and reduce damage to shaft system components during assembly due to subjective reasons such as unskilled operators.

[0052] It should be understood that, limited by practical limitations, the horizontal direction and vertical plane described above are often difficult to ensure absolute horizontality or absolute verticality. Therefore, for the situation where there is an error within an acceptable range, it still belongs to the technical solution of the present disclosure and falls within the protection scope of the present disclosure. The same applies to other similar situations in the present disclosure, which will not be described one by one. It should also be understood that, since the small end of the main shaft is usually facing the bearing during assembly, and then the bearing is sleeved on the main shaft from the small end of the main shaft, the clamping structure 10 of the first assembly seat 1a can clamp the large end of the main shaft and turn the small end of the main shaft toward the second assembly seat 1b. At this time, the axis of the main shaft is biased toward the large end, and the overall center of gravity is low. Therefore, by reasonably setting the size of the clamping structure 10, it can be guaranteed that the clamping structure 10 still works reliably during the turning process.

[0053] Optionally, the hoisting angle is a vertical angle, that is, the shaft system component is placed vertically on the clamping structure during hoisting, which can achieve stable hoisting and help reduce safety hazards. At this time, the clamping structure can be rotated by 90 degrees to flip the clamped shaft system component to a horizontal direction.

[0054] In some embodiments, optionally, Figure 2As shown, the assembly seat 1 is also provided with a locking device 20, which is used to lock the clamping structure 10 at least two preset angle positions in the vertical plane, and the at least two preset angle positions include a first angle position where the shaft system component clamped by the clamping structure 10 is at a hoisting angle and a second angle position in the horizontal direction. By configuring the locking device 20, the clamping structure can be stably fixed at the desired preset angle position during the assembly process, which can not only reduce the time and effort required to align the first shaft system component and the second shaft system component, but also reduce the safety hazards when adjusting the angles of the first shaft system component and the second shaft system component for a long time, thereby ensuring the reliability and safety of the assembly. It should be understood that for the embodiment in which the hoisting angle is a vertical angle, the angle between the first angle position and the second angle position is 90°. For the case where the number of the at least two preset angle positions is greater than two, other angle positions other than the first angle position and the second angle position can be set according to actual needs.

[0055] Optionally, the clamping structure 10 includes a support plate 11, a turntable 12 and a clamping claw 13. The extension surface of the support plate 11 is roughly parallel to the relative movement direction of the first assembly seat 1a and the second assembly seat 1b, which can prevent the first shaft system component or the second shaft system component from sliding to the side and realize the positioning of the first shaft system component or the second shaft system component. It should be understood that, similar to the above description of the horizontal direction and the vertical plane, the roughly parallel here means parallel within an acceptable error range. The turntable 12 is embedded in the support plate 11 and can rotate relative to the support plate 11. The clamping claw 13 is arranged on the surface of the turntable 12 for clamping the shaft system component. By rotating the turntable 12, the rotation of the clamping claw 13 and the shaft system component clamped therein can be realized. And the support plate 11 can provide support and installation position for the turntable 12 while realizing the positioning of the shaft system component, thereby ensuring the stability of the structure. Accordingly, the locking device 20 is used to lock the turntable 12 at at least two preset angle positions.

[0056] Regarding the clamping jaw 13, as an example, Figure 2 As shown, in order to adapt to the shape of the shaft system component, the clamping jaws 13 can be set to surround and clamp from the circumferential direction, and adopt a left-right symmetrical two-part structure, and achieve stable clamping by moving the two parts toward the center at the same time. Upper and lower jaws can also be set on both the left and right sides to increase the contact points and further improve the clamping stability. At the same time, due to the heavy weight of the shaft system component, the distance between the upper and lower jaws can be appropriately increased to clamp the longest possible shaft segment. The specific distance can be designed according to the size of the shaft system component to be assembled.

[0057] Further optionally, if Figure 2As shown, an avoidance gap 121 is provided on the side of the turntable 12; the locking device 20 includes an elastic slider 21 and at least two positioning gaps 22, the elastic slider 21 is provided in the avoidance gap 121 and can retract into the avoidance gap 121 under pressure, at least two positioning gaps 22 are provided on the inner side wall of the support plate 11 facing the turntable 12, when the turntable 12 rotates to any preset angle position, the avoidance gap 121 is opposite to at least one of the two positioning gaps 22, so that the elastic slider 21 is inserted into the positioning gap 22 opposite to the avoidance gap 121, thereby limiting the rotation of the turntable 12. By respectively providing an avoidance notch 121 and a positioning notch 22 that can face each other on the turntable 12 and the support plate 11, and providing an elastic slider 21 in the avoidance notch 121, the turntable 12 can rotate freely when the avoidance notch 121 is at an angle away from the positioning notch 22, and when the turntable 12 is at an angle where the avoidance notch 121 faces the positioning notch 22, the circumferential limit locking of the turntable 12 is achieved by means of the elastic slider 21 extending from the avoidance notch 121 into the positioning notch 22, so that the turntable 12 cannot continue to rotate, thereby ensuring that the turntable 12 is stably fixed at the preset angle position required for assembly. It should be understood that the central angle formed by the positioning notch 22 on the turntable 12 only needs to be consistent with the angle between the corresponding preset angle position, and the specific setting position of the positioning notch 22 can be flexibly adjusted when the setting angles of the positioning notch 22, the avoidance notch 121 and the clamp 13 are coordinated, so as to ensure that the turntable 12 is locked at the preset angle position. As an example, Figure 2 As shown, the turntable 12 is in the first angular position during initial lifting, the avoidance gap 121 is located on the left side of the turntable 12, there are two positioning gaps 22, which are respectively arranged at the bottom and the left side of the turntable 12, and the elastic slider 21 is located in the positioning gap 22 on the left side; when the turntable 12 rotates to the second angular position, the elastic slider 21 will be located in the positioning gap 22 at the bottom.

[0058] Regarding the aforementioned clamping structure 10 including the clamping jaws 13, further optionally, as Figure 1 and Figure 2 As shown, the clamping structure 10 also includes a supporting portion 14, which is arranged at the bottom of the clamping jaw 13, and the supporting portion 14 is used to support the shaft system components. The shaft system components are all heavy, and when the clamping jaw 13 clamps from its circumference, it is necessary to rely on friction to achieve clamping, so the clamping capacity of the clamping jaw 13 is required to be high. By arranging the supporting portion 14 at the bottom of the clamping jaw 13, additional support force can be provided for the shaft system components from the bottom, thereby sharing the force of the clamping jaw 13, which helps to improve the structural reliability and safety of the assembly tooling.

[0059] In some embodiments, the assembly seat 1 also includes a rotation drive device, which is used to drive the clamping structure to rotate in a vertical plane. The rotation drive device includes a rotation drive motor and a power supply circuit. The power supply circuit is used to supply power to the rotation drive motor in a conductive state. A switch is provided on the power supply circuit. The switch can be closed when the locking device is in an unlocked state to turn on the power supply circuit. The switch can also be disconnected when the locking device is in a locked state to disconnect the power supply circuit. By configuring the assembly seat 1 with a rotation drive device for driving the clamping structure 10 to rotate, and making its power supply circuit cooperate with the locking device, the power supply circuit is turned on only when the clamping structure 10 is unlocked to supply power to the rotation drive motor, and is disconnected when the clamping structure 10 is locked to cut off the power to the rotation drive motor. The rotation drive motor can normally drive the clamping structure 10 to rotate when the clamping structure 10 has not yet rotated to the preset angle position, and the rotation drive motor can be cut off when the clamping structure 10 rotates to the preset angle position. At this time, the clamping structure 10 loses the power to rotate and is braked by the mechanical structure of the locking device 20. The combination of these two factors can make the clamping structure 10 stop rotating more reliably and maintain it at the preset angle position, further improving the assembly reliability and assembly efficiency.

[0060] Optionally, the switch is a travel switch or a micro switch, which is triggered to close when the locking device 20 is in the unlocked state, and is triggered to open when it is in the locked state. For the above-mentioned embodiment in which the locking device 20 includes an elastic slider 21, as an example, the switch can be arranged at one end of the elastic slider 21 located in the avoidance gap 121, and when the elastic slider 21 is compressed and retracted into the avoidance gap 121, the switch is triggered to close, and when the elastic slider 21 extends out of the avoidance gap 121 and enters the positioning gap 22, the switch is triggered to open.

[0061] Further optionally, when the locking device 20 is in the unlocked state, the switch piece is closed as the clamping structure leaves the preset angle position, and the switch piece is opened as the clamping structure reaches the preset angle position. At this time, the opening and closing of the switch piece is determined by the angle position of the clamping structure 10. Even if the locking device is in the unlocked state, as long as the clamping structure 10 is in the preset angle position, the switch piece will be opened, so that the two factors of rotation power and mechanical structure braking will not fail at the same time, further ensuring that the stopping position of the clamping structure 10 is stable and reliable.

[0062] At this time, for the aforementioned embodiment in which the locking device 20 includes an elastic slider 21, as an example, one contact of the switch element is arranged at the free end of the elastic slider 21, and the other contact is a continuous contact, which is arranged in the arc section of the inner wall of the support plate 11 where the positioning notch 22 is provided, and no contact is provided in the positioning notch 22, so that when the turntable 12 leaves the preset angle position and the elastic slider 21 retracts into the avoidance notch 121 and contacts with the switch element contact on the inner wall of the support plate 11, the switch element is closed, and when the turntable 12 reaches the preset angle position and the elastic slider 21 no longer contacts with the switch element contact on the inner wall of the support plate 11, the switch element is disconnected. Regarding the arrangement of the continuous contacts, as an example, if the rotation drive device can only drive the turntable 12 to rotate in a single fixed direction, for the entire circumferential inner wall of the support plate 11, except for the part where the positioning notch 22 is provided, the switch element contact can be arranged at other circumferential positions. During assembly, the rotation drive device can first drive the turntable 12 to rotate to the first angle position, and then drive the turntable 12 to rotate to the second angle position to flip the shaft system component. After the assembly is completed, the clamping jaw 13 can be released, and the turntable 12 can be driven to rotate to reset to the first angle position. The turntable 12 can also be reset during the next assembly. Of course, it is also possible to only have a minor arc section (e.g., a minor arc section) of the positioning notch 22 in the inner side wall of the support plate 11. Figure 2 The switch contacts are arranged on the 1 / 4 arc segment at the lower left corner of the middle turntable 12, and when the turntable 12 needs to be reset, it is achieved by the operator manually rotating the turntable 12. If the rotation drive device can drive the turntable 12 to switch between clockwise and counterclockwise directions, the switch contacts can also be arranged only on the inner side wall of the above-mentioned inferior arc segment of the support plate 11 to save conductive materials. At this time, if the turntable 12 needs to be reset after assembly, it can be achieved by driving the turntable 12 to rotate in the opposite direction. It should be understood that the arrangement position of the continuous contacts of the switch on the inner side wall of the support plate 11 introduced above emphasizes the circumferential direction, while in the thickness direction of the support plate 11, the contacts can be fully distributed, or the contacts can be arranged only within the range that can contact the contacts on the free end of the elastic slider 21, and the present disclosure does not limit this. In addition, regarding the arrangement of the switch contacts, as an example, the free end of the elastic slider 21 or the above-mentioned inner wall of the support plate 11 can be directly made of conductive material, or conductive material can be provided on the insulating free end of the elastic slider 21 or the insulating inner wall of the support plate 11, and the present disclosure also does not impose any restrictions on this.

[0063] In addition, in the above example, when the turntable 12 is at the preset position angle, the elastic slider 21 will extend into the positioning notch under the action of the elastic restoring force, so it will be in a locked state. If the turntable 12 needs to be driven to rotate, on the one hand, it is necessary to use external force to press the elastic slider 21 so that it withdraws from the positioning notch 22 and retracts into the avoidance notch 121, and on the other hand, it is necessary to rely on additional power to drive the turntable 12 to rotate.

[0064] For the former, it can be realized by manpower pressing or an additional power device. For this reason, as an example, a guide ramp can be set at the free end of the elastic slider 21, so that the elastic slider 21 can be more smoothly withdrawn from the positioning notch 22 and rotate the rotating disk 12, and the present disclosure does not limit this.

[0065] For the latter, in some embodiments, optionally, it can also be achieved by means of human rotation or an additional power device.

[0066] In other embodiments, the rotation drive device may further include a backup power supply circuit connected in parallel with the power supply circuit, and a backup switch is provided on the backup power supply circuit. When the switch is disconnected as the clamping structure reaches a preset angle position, the backup switch is closed to turn on the backup power supply circuit, so that the rotation drive device is energized and drives the clamping structure 10 to rotate away from the preset angle position, so as to close the switch and turn on the power supply circuit; the rotation drive device may also disconnect the backup switch when the power supply circuit is turned on, so as to realize independent power supply of the power supply circuit. By additionally configuring a backup power supply circuit, the rotation drive device may have a self-starting capability, which does not require the use of manpower, can reduce safety hazards, and does not require additional power devices, which helps to control costs. In addition, by configuring a backup switch for the backup power supply circuit, the backup power supply circuit may be disconnected in time after the power supply circuit is turned on, so that the rotation drive motor may be reliably powered off after the clamping structure 10 rotates to a preset angle, so that the clamping structure 10 can be stably docked, and assembly reliability is guaranteed. It should be understood that, for the convenience of introducing the solution concept of the present invention, an embodiment in which the locking device 20 includes an elastic slider 21 is described as an example. However, for other structural forms of the locking device 20, if feasible, the rotating drive device including a backup power supply circuit of this embodiment can also be adopted.

[0067] Next, other structures of the assembly seat 1 are introduced.

[0068] In some embodiments, optionally, Figure 1As shown, the assembly seat 1 is further provided with a baffle 30, which is arranged opposite to the support plate 11 and is located on the side of the support plate 11 where the turntable 12 is arranged. The baffle 30 is used to block the side of the shaft system component to prevent the shaft system component from falling off. By further providing the baffle 30 opposite to the support plate 11, the support plate 11 and the baffle 30 can be used to protect the shaft system component from the opposite sides of the shaft system component to prevent it from falling off or moving left and right, which can further improve the stability of the shaft system component and ensure the reliability and safety of assembly.

[0069] Optionally, at least one of the support plate 11 and the baffle 30 can move toward or away from each other. By designing at least one of the support plate 11 and the baffle 30 as a movable structure, the support plate 11 and the baffle 30 can be moved away from each other at the beginning of assembly, thereby freeing up enough operating space around the support plate 11 to complete the clamping and flipping of the shaft system components. Thereafter, the support plate 11 and the baffle 30 are brought closer to each other, which can effectively protect the shaft system components from falling off or moving left and right. As an example, at least one of the support plate 11 and the baffle 30 can be driven to move by manpower or a driving device. In the case of using a driving device, the driving device may, for example, include a driving motor for providing power, and a Figure 2 A pair of meshing concentric gear rollers 112 and concentric racks 113 are shown, the concentric gear rollers 112 are arranged at the bottom of the driven support plate 11 / baffle 30, and the concentric gear rollers 112 are rotationally connected to the driven support plate 11 / baffle 30, and the concentric racks 113 define the moving track of the driven support plate 11 / baffle 30. When the driving motor drives the concentric gear rollers 112 to rotate, the concentric gear rollers 112 drive the connected support plate 11 / baffle 30 to move along the concentric racks 113, so as to realize the movement of the support plate 11 / baffle 30. At this time, the meshing of the centering gear roller 112 and the centering rack 113 can play a certain role in fixing the support plate 11 / baffle 30, so as to play a sufficient protective role. The position adjustment accuracy of the support plate 11 / baffle 30 can be guaranteed by reasonably designing the tooth pitch of the centering gear roller 112 and the centering rack 113; in addition, other devices, such as locking pins, can be used as needed to fix the support plate 11 / baffle 30. Of course, in addition to the centering gear roller 112 and the centering rack 113, the driving device can also adopt other reliable structures, such as a hydraulic structure, using the thrust or pull of the hydraulic structure to drive at least one of the support plate 11 and the baffle 30 to move, and the present disclosure does not limit this.

[0070] It should be understood that since the shaft system component is clamped between the support plate 11 and the baffle plate 30, the center position of the shaft system component is also determined by the positions of the support plate 11 and the baffle plate 30, and the center positions of the first shaft system component and the second shaft system component need to be aligned during assembly, so the setting positions of the support plate 11 and the baffle plate 30 will affect the center alignment of the first shaft system component and the second shaft system component during assembly.

[0071] Based on this, in order to facilitate the alignment of the centers of the first shaft system component and the second shaft system component, in some embodiments, optionally, if the assembly tool disclosed in the present invention is only used to assemble shaft systems of the same structural size, one of the support plate 11 and the baffle plate 30 can be fixed, and the other of the support plate 11 and the baffle plate 30 can be moved, so as to ensure that the first shaft system component or the second shaft system component is fixed to the same position each time it is assembled. Then, by reasonably setting the position of the fixed one of the support plate 11 and the baffle plate 30, the center position of the first shaft system component and the second shaft system component can be fixed.

[0072] In other embodiments, optionally, to adapt to shaft systems of different sizes, such as Figure 3As shown, the assembly seat 1 is also provided with a centering device 40, and the support plate 11 and the baffle plate 30 are respectively located at the two ends of the centering device 40. The centering device 40 is used to drive the support plate 11 and the baffle plate 30 to move toward each other, so that the center of the shaft system component clamped on the support plate 11 moves to the set position of the centering device 40, and the center of the first shaft system component and the center of the second shaft system component are aligned by aligning the set positions of the first assembly seat 1a and the second assembly seat 1b. By providing a centering device 40 for driving the support plate 11 and the baffle plate 30 to move toward each other, it can be ensured that for shaft systems of any size, after the support plate 11 and the baffle plate 30 clamp the first shaft system component or the second shaft system component, the center of the first shaft system component or the second shaft system component is at the set position between the support plate 11 and the baffle plate 30, thereby achieving applicability to shaft systems of different sizes. At this time, it is only necessary to align the set positions of the first assembly seat 1a and the second assembly seat 1b, so as to realize the automatic alignment of the center of the first shaft system component and the center of the second shaft system component, ensure the concentricity of the first shaft system component and the second shaft system component during assembly, improve the convenience of centering, assembly efficiency and precision, and reduce the damage of the shaft system component during assembly due to subjective reasons such as unskilled operators. It should be understood that the set position of the centering device 40 is related to the center of the centering device 40 itself and the position of the shaft system component between the support plate 11 and the baffle 30. If the center of the shaft system component is just located at the midpoint between the support plate 11 and the baffle 30 within an acceptable error range, the set position is the center of the centering device 40 itself; if the center of the shaft system component is offset relative to the midpoint between the support plate 11 and the baffle 30 and exceeds the acceptable error range due to reasons such as the uneven surface of the turntable 12 and the surface of the support plate 11 or the uneven surface of the baffle 30, the set position is the position after the center of the centering device 40 itself is offset accordingly. It should also be understood that even if this offset exists, when the structures of the first assembly seat 1a and the second assembly seat 1b themselves are consistent, since the degree of offset is also consistent, the set positions of the first assembly seat 1a and the second assembly seat 1b can still be aligned by aligning the centers of the centering devices 40 of the first assembly seat 1a and the second assembly seat 1b.

[0073] Regarding the set position, in some embodiments, optionally, the set position is fixed, and can be fixed and aligned when the assembly tooling is produced, which can simplify subsequent alignment operations.

[0074] In other embodiments, optionally, the setting position of the centering device 40 is adjustable on the assembly seat 1, so that the setting position is adjustable, and it is convenient to adjust the setting position appropriately to meet the needs of special situations, and reduce the influence of the errors existing in the assembly tool itself during manufacturing and assembly on the shaft system assembly, so as to improve the alignment flexibility of the setting position. As an example, during assembly, the setting positions of the first assembly seat 1a and the second assembly seat 1b can be aligned first. At this time, the assembly seat 1 has no load shaft system components, which can effectively reduce the weight of the tooling during alignment, reduce the difficulty of alignment, and improve safety. After the shaft system components are installed on the assembly seat 1, the shaft system components can be driven to move by the centering device 40 to automatically achieve the center alignment of the shaft system components.

[0075] Regarding the structure of the centering device 40, in some embodiments, optionally, as Figure 3 As shown, the bottom of the support plate 11 and the baffle plate 30 are both provided with a plate body slider 111; the centering device 40 includes two rotating arms 41 connected in a cross rotation, and the two rotating arms 41 are embedded with a centering slider 42, which is connected to the plate body slider 111. The centering slider 42 can move along the slide rails of the two rotating arms 41 toward the intersection center of the two rotating arms 41 as the two rotating arms 41 rotate, so as to drive the support plate 11 and the baffle plate 30 to move toward each other through the plate body slider 111. By designing the centering device 40 as an X-shaped structure composed of two rotating arms 41, and connecting the plate body slider 111 with the centering slider 42, the X-shaped stable structure can be used to achieve the synchronous movement of the support plate 11 and the baffle plate 30, so as to move the center of the first shaft system component or the second shaft system component toward the intersection center of the two rotating arms 41. The structure has a relatively high stability, which can ensure automatic centering while stably supporting the first shaft system component or the second shaft system component, and fully ensure the assembly accuracy and reliability. It should be understood that, since the centering device 40 can make the support plate 11 and the baffle 30 move synchronously, when providing driving force, the driving force can be provided only for one of the support plate 11 and the baffle 30, that is, the other of the support plate 11 and the baffle 30 can be moved together under the structural restriction of the centering device 40. Of course, the driving force can also be provided for both the support plate 11 and the baffle 30, and at least one of the two rotating arms 41 of the centering device 40 can also be directly driven to rotate, which are all implementation methods of the present disclosure.

[0076] It should be understood that the intersection center of the two rotating arms 41 is the center of the centering device 40 itself. In this case, if the setting position is adjustable, it is only necessary to adjust the position of the intersection center of the two rotating arms 41. As an example, Figure 3 As shown, a center hole 43 is constructed at the intersection center of the two rotating arms 41, and as shown in FIG. Figure 4As shown, the centering device 40 is further configured with meshing aligning gear rollers 44 and aligning racks 45, and the center hole 43 is sleeved on the aligning gear roller 44. By driving the aligning gear roller 44 to rotate, the rotating arm 41 and its center hole 43 can be driven to move along the aligning rack 45, thereby realizing the adjustment of the set position. Optionally, the centering device 40 can be further configured with an aligning cylinder 46, and the aligning gear roller 44 can be arranged inside the aligning cylinder 46 and exposed at the upper end and / or lower end of the aligning cylinder 46 to mesh with the aligning rack 45, and the center hole 43 is sleeved on the aligning cylinder 46, which can reduce the direct contact and mutual friction between the center hole 43 and the aligning gear roller 44, thereby ensuring the reliable operation of the aligning gear roller 44. It should be understood that the transmission method of the gear roller and the rack is only an example, and other transmission methods, such as chain transmission and belt transmission, can also be used, and the present disclosure does not limit this. The other transmission schemes in the text are similar.

[0077] Alternatively, if Figure 2 As shown, the assembly seat 1 is further provided with a slider track 50, and the plate slider 111 is embedded in the slider track 50 and can move along the slider track 50. By further providing the slider track 50 for limiting the moving track of the plate slider 111, it can be further ensured that the centering device 40 drives the support plate 11 and the baffle 30 to move stably. As an example, Figure 3 As shown, at this time, the centering slider 42 can be connected to the bottom of the plate slider 111, so that the plate slider 111 and the centering slider 42 are located at different heights, which can reduce the interference between the centering slider 42 and the slider track 50.

[0078] Optionally, the plate slider 111 is rotatably connected to the centering slider 42, and the rotation axes of the plate slider 111 and the centering slider 42 are roughly parallel to the rotation axes of the two rotating arms 41. Since the plate slider 111 is connected to the support plate 11 or the baffle 30, it is a fixed structure. The centering slider 42 moves in the slide rails of the two rotating arms 41 that form the X shape, and the force direction is always changing, which may collide with the side wall of the slide rail. By rotatably connecting the plate slider 111 and the centering slider 42, it is possible to provide the centering slider 42 with appropriate degrees of freedom while ensuring the synchronous movement of the two, which helps to improve the smoothness of movement and ensure smooth automatic centering.

[0079] Regarding the structure of the centering device 40, in other embodiments, the centering device 40 may optionally include two symmetrically arranged telescopic rods, which may be arranged between the support plate 11 and the baffle 30, and used to synchronously pull the support plate 11 and the baffle 30; the two telescopic rods may also be arranged on the side where the support plate 11 and the baffle 30 are away from each other, and used to synchronously push the support plate 11 and the baffle 30. This structure can achieve synchronous movement of the support plate 11 and the baffle 30 by controlling the synchronous movement of the two telescopic rods. It should be understood that for this embodiment, a plate body slider 111 may also be provided at the bottom of the support plate 11 and the baffle 30, and a slider track 50 may be provided in cooperation to ensure stable movement of the support plate 11 and the baffle 30.

[0080] Optionally, the assembly tool further includes an assembly track 2, and at least one of the first assembly seat 1a and the second assembly seat 1b is adapted to the assembly track 2 and can reciprocate along the assembly track 2. By configuring the assembly track 2, the movable assembly seat 1 can be reciprocated along the assembly track 2, so that the assembly seat 1 has a clear, stable and reliable movement track, which can improve the stability and safety of the assembly process, help ensure the assembly accuracy, reduce the assembly difficulty, and improve the assembly efficiency. As an example, the assembly track 2 can be constructed as a rack, and accordingly, as Figure 4 As shown, an assembly gear roller 60 meshing with the assembly track 2 is provided at the bottom of the movable assembly seat 1, so that the assembly seat 1 can move along the assembly track 2 as the assembly gear roller 60 rotates. Figure 1 and Figure 2 As shown, the assembly tool further includes a base 3 , and the assembly track 2 is arranged on the base 3 .

[0081] Another aspect of the present disclosure provides an assembly method for assembling a shaft system of a wind turbine generator set based on an assembly tool according to an embodiment of the present disclosure, wherein the shaft system includes a first shaft system component and a second shaft system component, which are introduced in the foregoing text and will not be repeated here.

[0082] Figure 5 It is a flow chart showing an assembly method according to an embodiment of the present disclosure. It should be noted that, in order to facilitate the distinction of the step numbers of the assembly method, the structure of the assembly tool is not marked in this section.

[0083] Reference Figure 5 In step S501, the first shaft system component and the second shaft system component are hoisted to the first assembly seat and the second assembly seat respectively.

[0084] In step S502, the clamping structures of the first assembly seat and the second assembly seat are rotated to drive the first shaft system component and the second shaft system component to rotate toward each other to a horizontal direction.

[0085] In step S503, the first assembly seat and the second assembly seat are driven to move closer to each other, so as to realize the assembly of the first shaft system component and the second shaft system component.

[0086] According to the assembly method of the embodiment of the present disclosure, the assembly tool according to the embodiment of the present disclosure is used, and thus all the beneficial technical effects of the assembly tool are possessed, which will not be described in detail here. It should be understood that, according to the actual situation, before the formal assembly, or each time the assembly is completed, the clamping structure needs to be reset. Of course, it can also be reset after the previous assembly is completed, and reset and corrected again during each assembly. The present disclosure does not limit this.

[0087] It should also be understood that step S501 describes the initial lifting step of the first axis system component and the second axis system component, and step S502 describes the rotation step of the first axis system component and the second axis system component. For ease of description, the first axis system component and the second axis system component are described together. In practice, step S501 can be further split into two steps of lifting the first axis system component and lifting the second axis system component, which can be performed simultaneously or separately in a sequence. Similarly, step S502 can be further split into two steps of rotating the first axis system component and rotating the second axis system component, which can also be performed simultaneously or separately in a sequence. In the absence of contradiction, the execution order of the four steps of lifting the first axis system component, lifting the second axis system component, rotating the first axis system component, and rotating the second axis system component can be adjusted and combined to meet different assembly requirements in practice. These are all implementation methods of the present disclosure. Next, in combination with Figures 1 to 4 , introduces an assembly tool and an assembly method thereof according to a specific embodiment of the present invention.

[0088] In this specific embodiment, Figure 1 As shown in FIG. 1 , the fixed assembly seat 1 on the left is a first assembly seat 1a for clamping the main shaft. The second assembly seat 1b on the right is used to clamp the bearing seat with the bearing assembled thereon. Figure 4 The assembly gear roller 60 shown slides on the assembly track 2 toward the first assembly seat 1a fixed on the left side to realize the assembly of the shaft system.

[0089] The support plate 11 and the baffle plate 30 of the clamping structure 10 can block the side of the shaft system component. Figure 2 As shown, the clamping jaws 13 on the support plate 11 are designed to be opposite to each other in pairs, and can move synchronously toward the center to clamp the shaft system component. The supporting portion 14 is configured as a support plate, which can support one end of the shaft system component when the shaft system component is placed on the clamping structure 10 to prevent it from falling. After the clamping jaws 13 clamp the shaft system component firmly, the turntable 12 can flip the clamped shaft system component for subsequent horizontal assembly.

[0090] To achieve flipping, Figure 2 As shown, the turntable 12 is provided with an avoidance notch 121 and an elastic slider 21, the support plate 11 is provided with two positioning notches 22 distributed at right angles, and the assembly seat 1 is also provided with a rotation drive device with a power supply circuit and a rotation drive motor. Figure 2 The display shows the state where the turntable 12 is in the initial first angle position, and the elastic slider 21 is inserted into the positioning notch 22 on the left. When the turntable 12 needs to rotate, the elastic slider 21 is compressed by external force, and the turntable 12 is rotated counterclockwise by manpower, so that the avoidance notch 121 moves downward and is offset from the positioning notch 22 on the left, and then the contraction control of the elastic slider 21 is released, so that the elastic slider 21 contacts the inner wall of the support plate 11 (i.e., the slideway edge surface of the turntable 12) to generate an electrical circuit (i.e., the switch of the power supply circuit is closed), and the rotation drive motor is turned on, driving the turntable 12 to rotate counterclockwise. When the turntable 12 rotates 90°, the elastic slider 21 is separated from the slideway edge surface and bounces into the positioning notch 22 at the bottom, the power supply circuit is disconnected, and the rotation drive motor stops running. At the same time, the elastic slider 21 is inserted into the positioning notch 22 at the bottom to limit the turntable 12 from continuing to rotate.

[0091] The support plate 11 can be moved by the engagement of the centering gear roller 112 and the centering rack 113 under the drive of the motor, and the baffle 30 is the same. Of course, the baffle 30 can be driven by the centering device 40 instead of the motor to move toward the support plate 11.

[0092] Regarding the centering device 40, Figure 2 and Figure 3 As shown, the centering device 40 includes two rotating arms 41 connected in a cross-rotational manner. A plate body slider 111 is provided at the bottom of the support plate 11 and the baffle plate 30. The plate body slider 111 can slide in the slider track 50. The lower end of the plate body slider 111 is connected to the centering slider 42 through a bearing so that only relative rotation can occur between the two. The centering slider 42 can move in the slideway of the rotating arm 41, so that when the two rotating arms 41 rotate, the centering slider 42 and the plate body slider 111 can move left and right to drive the support plate 11 and the baffle plate 30 to move toward each other or away from each other. The center hole 43 at the intersection of the two rotating arms 41 is sleeved as shown in FIG. Figure 4 On the centering cylinder 46 shown, the upper and lower sections of the centering cylinder 46 are meshed with the centering rack 45 through the internal centering gear roller 44. The movement of the centering cylinder 46 can be achieved by driving the motor, thereby driving the movement of the rotating arm 41 and its center hole 43.

[0093] In order to realize the assembly of the shaft system, firstly, during the manufacturing process of the assembly tool, it is necessary to ensure that the center heights of the turntables 12 of the first assembly seat 1a and the second assembly seat 1b are consistent, that is, the centers of the two turntables 12 are consistent in the Z direction. And the position of the centering cylinder 46 in the X direction is adjusted so that the connecting surface of the axis of the two centering cylinders 46 is parallel to the Y direction.

[0094] The formal horizontal assembly process of the shaft system is as follows: Figure 1 , rotate the turntable 12 on the first assembly seat 1a to the position where the supporting part 14 is at the bottom, that is, the first angle position, and then hoist the vertically placed main shaft onto the turntable 12 through the trolley hoist. After the large end of the main shaft is in horizontal contact with the supporting part 14, the clamp 13 is clamped so that the clamp 13 fixes the main shaft body. Then drive the elastic slider 21 to contract, so that the elastic slider 21 slides out of the positioning notch 22, and manually operate the turntable 12 to rotate clockwise, so that the elastic slider 21 contacts the edge surface of the slideway of the turntable 12, the power supply circuit of the rotation drive device is turned on, and the turntable 12 is driven to continue to rotate clockwise. When the main shaft rotates to the horizontal position, the elastic slider 21 slides into another positioning notch 22, the power supply circuit is disconnected, the rotation drive motor is powered off, and the elastic slider 21 and the positioning notch 22 fix the turntable 12. Then, the bearing seat with the assembled bearing is vertically hoisted onto the turntable 12 of the second movable assembly seat 1b on the right side, and the bearing seat is fixed in a horizontal position by a similar operation. The difference is that the turntable 12 needs to be turned counterclockwise at this time to make the bearing seat flip toward the main shaft. Then, the centering gear roller 112 is driven, and the supporting plates 11 and baffles 30 that are opposite to each other are ordered to move synchronously toward the centering cylinder 46 under the action of the centering device 40. The drive is stopped after the baffles 30 without the turntable 12 come into contact with the shaft system component. This process can automatically ensure that the axis of the main shaft and the bearing seat of various models and sizes are aligned in the X direction, avoiding the tedious steps of repeatedly adjusting the axis when assembling shaft system components of different sizes, thereby improving the scope of application and assembly efficiency of the tooling. Finally, the assembly gear roller 60 is driven to rotate, driving the second assembly seat 1b on the right side to move toward the first fixed assembly seat 1a on the left side, completing the assembly of the main shaft and the bearing seat.

[0095] The assembly tooling provided in this specific embodiment can realize the horizontal installation of the main shaft and the bearing seat, avoiding the height limit of the hoisting assembly. The assembly position of the two shaft system components can also be automatically controlled and adjusted according to the sizes of different shaft system components, ensuring the concentricity of the two shaft system components during assembly, increasing the assembly efficiency and accuracy, and reducing the damage to the shaft system components during assembly due to subjective reasons such as the unskilled operator. The assembly form of the slideway is also used to solve the safety problem of hoisting assembly. The designed positioning notch 22 and the circuit control idea of ​​the turntable 12 can effectively control the rotation angle and drive of the turntable 12. The centering cylinder 46 is designed as a position-adjustable structure, which reduces the influence of errors during the manufacturing and assembly of the assembly tooling.

[0096] The specific implementation methods of the present disclosure have been described in detail above. Although some embodiments have been shown and described, those skilled in the art should understand that these embodiments may be modified and varied without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents. These modifications and variations should also be within the scope of protection of the claims of the present disclosure.

Claims

1. An assembly tool for assembling a shaft system of a wind turbine generator set, wherein the shaft system comprises a first shaft system component and a second shaft system component, wherein: The assembly tool comprises: An assembly seat (1), wherein the assembly seat (1) is provided with a clamping structure (10), wherein the clamping structure (10) is capable of clamping a shaft system component at a hoisting angle and is capable of rotating in a vertical plane to drive the clamped shaft system component to rotate to a horizontal direction, The assembly seat (1) comprises a first assembly seat (1a) and a second assembly seat (1b), wherein the first assembly seat (1a) is used to clamp and rotate the first shaft system component, and the second assembly seat (1b) is used to clamp and rotate the second shaft system component, so that the first shaft system component and the second shaft system component are opposite to each other in a horizontal direction, and the first assembly seat (1a) and the second assembly seat (1b) can be relatively close to each other in a horizontal plane, so that the first shaft system component and the second shaft system component are relatively close to each other and assembled.

2. The assembly tool according to claim 1, characterized in that: The assembly seat (1) is also provided with a locking device (20), and the locking device (20) is used to lock the clamping structure (10) at at least two preset angle positions in a vertical plane, and the at least two preset angle positions include a first angle position in which the shaft system component clamped by the clamping structure (10) is at a lifting angle and a second angle position in a horizontal direction.

3. The assembly tool according to claim 2, characterized in that: The clamping structure (10) comprises a support plate (11), a rotating disk (12) and a clamping claw (13); the extension surface of the support plate (11) is substantially parallel to the relative movement direction of the first assembly seat (1a) and the second assembly seat (1b); the rotating disk (12) is embedded in the support plate (11) and can rotate relative to the support plate (11); the clamping claw (13) is arranged on the surface of the rotating disk (12) and is used to clamp the shaft system component; The locking device (20) is used to lock the rotating disk (12) at the at least two preset angle positions.

4. The assembly tool according to claim 3, characterized in that: The side surface of the rotating disk (12) is also provided with an avoidance notch (121); The locking device (20) comprises an elastic slider (21) and at least two positioning notches (22); the elastic slider (21) is arranged in the avoidance notch (121) and can be retracted into the avoidance notch (121) under pressure; the at least two positioning notches (22) are arranged on the inner side wall of the support plate facing the rotating disk (12); when the rotating disk (12) rotates to any of the preset angle positions, the avoidance notch (121) faces one of the at least two positioning notches (22), so that the elastic slider (21) is inserted into the positioning notch (22) facing the avoidance notch (121), thereby limiting the rotation of the rotating disk (12).

5. The assembly tool according to claim 3, characterized in that: The clamping structure (10) further comprises a supporting portion (14) which is arranged at the bottom of the clamping jaw (13), and the supporting portion (14) is used for supporting a shaft system component.

6. The assembly tool according to any one of claims 2 to 5, characterized in that: The assembly seat (1) also includes a rotation drive device, which is used to drive the clamping structure (10) to rotate in a vertical plane. The rotation drive device includes a rotation drive motor and a power supply circuit. The power supply circuit is used to supply power to the rotation drive motor in a conductive state. A switch is provided on the power supply circuit. The switch can be closed when the locking device is in an unlocked state to turn on the power supply circuit. The switch can also be opened when the locking device is in a locked state to disconnect the power supply circuit.

7. The assembly tool according to claim 6, characterized in that: When the locking device is in an unlocked state, the switch element is closed as the clamping structure leaves the preset angle position, and the switch element is opened as the clamping structure reaches the preset angle position; The rotation drive device further comprises a backup power supply circuit connected in parallel with the power supply circuit, and a backup switch is provided on the backup power supply circuit. When the switch is disconnected when the clamping structure reaches the preset angle position, the backup switch is closed to conduct the backup power supply circuit, so that the rotation drive device can be energized and drive the clamping structure to rotate away from the preset angle position, so as to close the switch and conduct the power supply circuit. The rotation drive device can also disconnect the standby switch when the power supply circuit is turned on, so as to realize independent power supply of the power supply circuit.

8. The assembly tool according to any one of claims 3 to 5, characterized in that: The assembly seat (1) is further provided with a baffle (30), the baffle (30) being arranged opposite to the support plate (11) and located on a side of the support plate (11) on which the turntable (12) is arranged, the baffle (30) being used to block the side of the shaft system component to prevent the shaft system component from falling off.

9. The assembly tool according to claim 8, characterized in that: At least one of the support plate (11) and the baffle plate (30) is capable of moving toward or away from the other.

10. The assembly tool according to claim 9, characterized in that: The assembly seat (1) is also provided with a centering device (40), the support plate (11) and the baffle plate (30) are respectively located at two ends of the centering device (40), and the centering device (40) is used to drive the support plate (11) and the baffle plate (30) to move toward each other so that the center of the shaft system component clamped on the support plate (11) moves to the set position of the centering device (40), and the center of the first shaft system component is aligned with the center of the second shaft system component by aligning the set positions of the first assembly seat (1a) and the second assembly seat (1b).

11. The assembly tool according to claim 10, characterized in that: The bottoms of the support plate (11) and the baffle plate (30) are both provided with plate body sliders (111); The centering device (40) comprises two rotating arms (41) connected in a cross-rotating manner, wherein the two rotating arms (41) are embedded with a centering slider (42), and the centering slider (42) is connected to the plate body slider (111). The centering slider (42) can move along the slide rails of the two rotating arms (41) toward the intersection center of the two rotating arms (41) as the two rotating arms (41) rotate, so as to drive the support plate and the baffle plate (30) to move towards each other via the plate body slider (111).

12. The assembly tool according to claim 11, characterized in that: The assembly seat (1) is also provided with a slider track (50), and the plate body slider (111) is embedded in the slider track (50) and can move along the slider track (50).

13. The assembly tool according to claim 11, characterized in that: The plate body slider (111) is rotatably connected to the centering slider (42), and the rotation axes of the plate body slider (111) and the centering slider (42) are substantially parallel to the rotation axes of the two rotating arms (41).

14. The assembly tool according to claim 10, characterized in that: The setting position of the centering device (40) on the assembly seat (1) is adjustable, so that the setting position is adjustable.

15. The assembly tool according to any one of claims 1 to 5, characterized in that: The lifting angle is a vertical angle.

16. The assembly tool according to any one of claims 1 to 5, characterized in that: The assembly tool also includes an assembly track (2), and at least one of the first assembly seat and the second assembly seat is adapted to the assembly track (2) and can reciprocate along the assembly track (2).

17. An assembly method for assembling a shaft system of a wind turbine generator set based on the assembly tool according to any one of claims 1 to 16, wherein the shaft system comprises a first shaft system component and a second shaft system component, wherein: The assembly method comprises: Hoisting the first shaft system component and the second shaft system component to the first assembly seat and the second assembly seat respectively; Rotate the clamping structures of the first assembly seat and the second assembly seat to drive the first shaft system component and the second shaft system component to rotate toward each other to a horizontal direction; The first assembly seat and the second assembly seat are driven to move closer to each other, so as to realize the assembly of the first shaft system component and the second shaft system component.

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