A hollow pipe installation tool for a wind power gear box

Abstract

The utility model discloses a hollow pipe mounting tool of wind power gear box relates to gear box technical field, including a kind of hollow pipe mounting tool of wind power gear box, comprising: screw rod, the outside end surface of the output shaft of wind power gear box is fixedly connected with the one end of multiple screw rods, and the other end is jointly connected first top plate;Support top is fixed with support plate, and support plate is equipped with sliding slot;Second top plate, the bottom of second top plate is equipped with pulley, and second top plate is used to with the outside end surface fixed connection of hollow pipe, and the outside of hollow pipe is equipped with deep groove ball bearing and oil retaining ring component, and the side of second top plate away from first top plate is fixed with multiple force legs, and multiple force legs are used to with the outside end surface of oil retaining ring component abut;Flexible part is set between first top plate and second top plate.The above-mentioned kind of hollow pipe mounting tool of wind power gear box, solve the technical problem of existing assembly efficiency low, fragile accessory, realize the technical effect of improving assembly efficiency, guarantee assembly quality.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, and in particular to a tooling for installing hollow tubes in wind turbine gearboxes. Background Technology

[0002] In wind power generation equipment, the wind turbine gearbox is the core transmission component. Currently, mainstream doubly-fed and semi-direct-drive models generally use a hollow tube structure to arrange the conductive slip rings. This requires fixing the input end of the hollow tube to the center of the input planetary carrier, connecting the output end to the gearbox output shaft, and achieving relative rotation through bearing support.

[0003] The traditional method for assembling the hollow tube and output shaft involves hoisting the hollow tube, bearing, and oil slinger assembly to the center hole of the output shaft with the gearbox shaft horizontally positioned, and then repeatedly striking the end face of the hollow tube with a heavy object. This process is not only complex and labor-intensive, but also inefficient, making it difficult to meet the needs of large-scale industrial production. More importantly, this direct impact assembly method can easily cause irreversible damage to the hollow tube, specifically manifested as end face deformation, unexpected circumferential deformation, and difficulty in ensuring precise concentricity between the hollow tube and the mounting hole.

[0004] Therefore, how to provide a tooling for installing hollow tubes in wind turbine gearboxes to improve assembly efficiency and ensure assembly quality is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide a tooling for installing hollow tubes in wind turbine gearboxes, which solves the technical problems of low assembly efficiency and easy damage to parts in existing systems.

[0006] To achieve the above objectives, this utility model provides a tooling for installing hollow tubes in wind turbine gearboxes, comprising:

[0007] One end of the screw is fixedly connected to the outer end face of the output shaft of the wind turbine gearbox, and the other end is connected to the first top plate.

[0008] A bracket, wherein a support plate is fixedly mounted on the top of the bracket, and a sliding groove is provided on the support plate along the length direction, and the height of the support plate can be adjusted by the bracket;

[0009] The second top plate has a pulley at its bottom, which can slide in the groove. The second top plate is used to fix the outer end face of the hollow tube. The hollow tube is fitted with a deep groove ball bearing and an oil baffle ring assembly. Multiple force-bearing legs are fixed on the side of the second top plate away from the first top plate. The multiple force-bearing legs are used to abut against the outer end face of the oil baffle ring assembly.

[0010] The telescopic component is disposed between the first top plate and the second top plate.

[0011] Preferably, the upper and lower edges of the first top plate are symmetrically provided with U-shaped notches, and each of the screws is respectively inserted into the corresponding U-shaped notches, and the first top plate is fixed to the screw by a locking nut provided at the end of the screw.

[0012] Preferably, the second top plate is provided with two positioning countersunk holes, and the outer end face of the hollow tube is provided with two threaded holes corresponding to the positioning countersunk holes. The second top plate and the hollow tube are fixedly connected by countersunk screws.

[0013] Preferably, the circumferential surface of the second top plate is provided with pulley mounting holes for mounting the pulleys, and the number of the force-bearing legs is four.

[0014] Preferably, the telescopic component is a hydraulic cylinder.

[0015] Preferably, the first top plate has a first groove on the side facing the second top plate, and the second top plate has a second groove on the side facing the first top plate, with the two ends of the hydraulic cylinder correspondingly disposed in the first groove and the second groove.

[0016] Preferably, the inner diameters of the first groove and the second groove are adapted to the outer diameters of the two ends of the hydraulic cylinder.

[0017] Preferably, the bracket includes a plurality of hydraulic rods, and the piston rod ends of each hydraulic rod are connected to the support plate.

[0018] Preferably, the support includes:

[0019] Hollow fixed tubes, with a base plate provided at the bottom of the two hollow fixed tubes;

[0020] The first helical gear is rotatably mounted on the top end of the two hollow fixed tubes, and the inner hole of the first helical gear is provided with an internal thread.

[0021] Two telescopic threaded rods are respectively disposed in two hollow fixed tubes, and the external thread of the telescopic threaded rod is adapted to the internal thread of the first helical gear;

[0022] A rotating rod is rotatably mounted on the two hollow fixed tubes, and the rotating rod is provided with a pair of second helical gears that mesh with the first helical gear;

[0023] A handle is connected to the rotating rod and is used to drive the rotating rod to rotate.

[0024] Preferably, a boss is provided on one side of the first helical gear, and the first helical gear is rotatably connected to the hollow fixed tube through a bearing.

[0025] Compared to the aforementioned background technology, the present invention provides a wind turbine gearbox hollow tube installation fixture. First, the pulley of the second top plate is placed into the groove of the support plate. Then, the height of the support plate is adjusted using a bracket to make the centerline of the second top plate coincide with the centerline of the hollow tube. Next, the end of the supporting leg is abutted against the outer end face of the oil baffle ring assembly. Then, the second top plate is fixedly connected to the outer end face of the hollow tube. Finally, four screws are threaded to the outer end face of the output shaft, and the first top plate is installed on the screws. The telescopic component is activated through the control system. Because the first top plate is connected to the screws, it is limited to move away from the output shaft. The telescopic component then drives the second top plate to move closer to the output shaft, causing the deep groove ball bearing and oil baffle ring assembly located on the hollow tube to gradually approach the center hole of the output shaft. When the deep groove ball bearing and oil baffle ring assembly reach the predetermined installation position, the telescopic component stops its telescopic movement. Finally, the installation fixture is removed, completing the installation operation.

[0026] In summary, the wind turbine gearbox hollow tube installation fixture provided in this application improves assembly efficiency, ensures assembly quality, reduces assembly difficulty, and avoids damage to parts. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 A front view of a wind turbine gearbox hollow tube installation fixture provided in an embodiment of this utility model;

[0029] Figure 2 This is a schematic diagram of the first top plate structure provided in the embodiment of this utility model;

[0030] Figure 3 This is a schematic diagram of the second top plate structure provided in the embodiment of this utility model;

[0031] Figure 4 This is a schematic diagram of the support structure provided in the embodiment of this utility model.

[0032] in:

[0033] 1-Screw, 2-Output shaft, 3-First top plate, 4-Bracket, 5-Support plate, 6-Second top plate, 7-Pulley, 8-Hollow tube, 9-Deep groove ball bearing, 10-Oil retaining ring assembly, 11-Force-bearing support leg, 12-Telescopic component, 13-U-shaped notch, 14-Locking nut, 15-Positioning countersunk hole, 16-Counterhead screw, 17-Pulley mounting hole, 18-First groove, 19-Hollow fixing tube, 20-Base plate, 21-First helical gear, 22-Telescopic threaded rod, 23-Rotating rod, 24-Second helical gear, 25-Handle. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1:

[0037] See Figure 1 This application provides a wind turbine gearbox hollow tube installation fixture, including screws 1, at least four screws 1, one end of which is fixedly connected to the outer end face of the output shaft 2 of the wind turbine gearbox, and the other end of which is connected to a first top plate 3; a bracket 4, the top of which is fixedly provided with a support plate 5, the support plate 5 having a sliding groove along its length, the bracket 4 being adjustable in height; a second top plate 6, the bottom of which is provided with a pulley 7, the pulley 7 being able to slide in the sliding groove, the second top plate 6 being used to fixally connect to the outer end face of the hollow tube 8, the hollow tube 8 being fitted with a deep groove ball bearing 9 and an oil baffle ring assembly 10, the side of the second top plate 6 opposite to the first top plate 3 being fixedly provided with multiple force-bearing legs 11, the multiple force-bearing legs 11 being used to abut against the outer end face of the oil baffle ring assembly 10; and a telescopic member 12, which is disposed between the first top plate 3 and the second top plate 6.

[0038] Specifically, the output shaft 2 has a central hole for mounting the hollow tube 8, the deep groove ball bearing 9, and the oil baffle assembly 10. The deep groove ball bearing 9 is used to reduce the friction and wear of the hollow tube 8 during rotation, while the oil baffle assembly 10 is used to prevent lubricating oil leakage. The deep groove ball bearing 9 and the oil baffle assembly 10 are both interference fits with the hollow tube 8 and the central hole of the output shaft 2.

[0039] The screw 1 is made of high-strength alloy steel, and there are four screws, which are evenly distributed on the outer end face of the output shaft 2 of the wind turbine gearbox. The screw 1 is fixedly connected to the outer end face of the output shaft 2 by a threaded connection.

[0040] The first top plate 3 is made of thickened steel plate. The support 4 is a telescopic support with adjustable height. By adjusting the telescopic length of the support 4, the height of the support plate 5 can be flexibly adjusted to adapt to the installation requirements of wind turbine gearboxes and hollow tubes of different sizes. The hollow tube 8 is fixed on the second top plate 6 by bolt connection. The pulley 7 is made of wear-resistant and low-noise polyurethane material to ensure smoothness and stability when sliding in the groove.

[0041] Multiple support legs 11 are evenly distributed on the side of the second top plate 6 away from the first top plate 3.

[0042] The telescopic component 12 is disposed between the first top plate 3 and the second top plate 6. The telescopic movement of the telescopic component 12 can drive the second top plate 6 to slide within the groove of the support plate 5.

[0043] Working principle:

[0044] Preparation: The wind turbine gearbox is fixed on the installation platform, and the axial movement of the output shaft 2 is limited by the wind turbine gearbox. Then, the deep groove ball bearing 9 and the oil baffle assembly 10 are assembled on the corresponding positions of the hollow tube 8 so that when the second top plate 6 is fixedly connected to the hollow tube 8, the end of the force-bearing leg 11 abuts against the outer end face of the oil baffle assembly 10. Then, the hollow tube 8 is hoisted to the center hole position of the output shaft 2 by the hoisting equipment, and the end of the hollow tube 8 away from the oil baffle assembly 10 passes through the center hole of the output shaft 2.

[0045] Assembly process: First, put the pulley 7 of the second top plate 6 into the groove of the support plate 5. Then, adjust the height of the support plate 5 through the bracket 4 so that the center line of the second top plate 6 coincides with the center line of the hollow tube 8. Next, abut the end of the force-bearing leg 11 against the outer end face of the oil baffle ring assembly 10. Then, fix the second top plate 6 to the outer end face of the hollow tube 8.

[0046] Finally, the four screws 1 are threaded to the outer end face of the output shaft 2, and the first top plate 3 is installed on the screws. The telescopic component 12 is activated by the control system. Since the first top plate 3 is connected to the screws 1, the first top plate 3 is limited to move away from the output shaft 2. Then the telescopic component drives the second top plate 6 to move in the direction closer to the output shaft 2, so that the deep groove ball bearing 9 and the oil baffle ring assembly 10 located on the hollow tube 8 gradually approach the center hole of the output shaft 2. When the deep groove ball bearing 9 and the oil baffle ring assembly 10 reach the predetermined installation position, the telescopic movement of the telescopic component 12 is stopped. Finally, the installation fixture is removed to complete the installation operation.

[0047] In summary, the wind turbine gearbox hollow tube installation fixture provided in this application improves assembly efficiency, ensures assembly quality, reduces assembly difficulty, and avoids damage to parts.

[0048] Based on the above embodiments, the second top plate 6 has at least two pulleys 7 at its bottom, which can ensure the stability of the movement of the second top plate 6.

[0049] Based on the above embodiments, see Figure 2 The first top plate 3 has symmetrical U-shaped notches 13 on its upper and lower edges. Each screw 1 passes through the corresponding U-shaped notch 13 and is fixed to the screw 1 by the locking nut 14 at the end of the screw 1. That is, the two lower U-shaped notches 13 are located at the upper end of the screw 1 and the two upper U-shaped notches 13 are located at the lower end. The first top plate 3 is fixed to the screw 1 by the locking nut 14 at the end of the screw 1, thereby limiting the movement of the first top plate 3 away from the output shaft 2.

[0050] Based on the above embodiments, see Figure 3 The second top plate 6 is provided with two positioning countersunk holes 15, and the outer end face of the hollow tube 8 is provided with two threaded holes corresponding to the positioning countersunk holes 15. The second top plate 6 and the hollow tube 8 are fixedly connected by countersunk screws 16. That is to say, when connected, the second top plate 6 and the hollow tube 8 are firmly fixed by countersunk screws 16.

[0051] Based on the above embodiment, the circumferential surface of the second top plate 6 is provided with a pulley mounting hole 17, which is used to install the pulley 7. The number of force-bearing legs 11 is 4, that is, the pulley mounting hole 17 is a threaded hole, and a screw that is threadedly engaged with the pulley mounting hole 17 is fixed on the pulley 7. The number of force-bearing legs 11 is set to 4, thereby ensuring the uniformity of force distribution.

[0052] Based on the above embodiments, the telescopic component 12 is a hydraulic cylinder.

[0053] Based on the above embodiment, the first top plate 3 is provided with a first groove 18 on the side end face facing the second top plate 6, and the second top plate 6 is provided with a second groove on the side end face facing the first top plate 3. The two ends of the hydraulic cylinder are correspondingly arranged in the first groove 18 and the second groove. The inner diameter of the first groove 18 and the second groove are respectively adapted to the outer diameter of the two ends of the hydraulic cylinder. The radial movement of the hydraulic cylinder is avoided by the restriction of the first groove 18 and the second groove.

[0054] The installation steps for the hydraulic cylinder are as follows:

[0055] When the second top plate 6 and the hollow tube 8 are fixedly connected by countersunk screws 16, and the four screws 1 are threaded to the outer end face of the output shaft 2, the first top plate 3 is placed on the screws 1, and then the hydraulic cylinder is placed in the first groove 18 and the second groove and the locking nut 14 is tightened until the hydraulic cylinder is clamped.

[0056] Furthermore, an optimized embodiment is provided, wherein the first top plate 3 is provided with a countersunk hole, and the hydraulic cylinder is fixedly connected to the first top plate 3 by means of screws cooperating with the countersunk hole.

[0057] Based on the above embodiments, see Figure 1 , Figure 4 The support 4 includes:

[0058] Hollow fixed tube 19, with a base plate 20 at the bottom of the two hollow fixed tubes 19;

[0059] The first helical gear 21 is rotatably mounted on the top end of the two hollow fixed tubes 19, and the inner hole of the first helical gear 21 is provided with internal thread.

[0060] Telescopic threaded rods 22 are respectively set in two hollow fixed tubes 19. The external thread of the telescopic threaded rod 22 is adapted to the internal thread of the first helical gear 21. The external thread of the telescopic threaded rod 22 and the internal thread of the first helical gear 21 are tightly engaged to form a helical pair. When the first helical gear 21 rotates, the axial component of the thread engagement drives the telescopic rod to move linearly along the hollow fixed tube 19.

[0061] The rotating rod 23 is rotatably mounted on two hollow fixed tubes 19. Specifically, a support frame is provided between the two hollow fixed tubes 19, and bearing seats are provided at both ends of the support frame. The rotating rod 23 rotates through the cooperation of the bearings and bearing seats. The rotating rod 23 is provided with a pair of second helical gears 24 that mesh with the first helical gear 21.

[0062] The handle 25 is connected to the rotating rod 23 and is used to drive the rotating rod 23 to rotate.

[0063] The first helical gear 21 has a boss on one side, and the first helical gear 21 is rotatably connected to the hollow fixed tube 19 through a bearing.

[0064] In other words, when the user rotates the handle 25, the rotating rod 23 rotates. The second helical gear 24 on the rotating rod 23 meshes with the first helical gear 21, converting the horizontal rotation into a vertical rotation. The internal thread of the first helical gear 21 engages with the external thread of the telescopic threaded rod 22, driving the telescopic rod to rise and fall along the hollow fixed tube 19 when rotating.

[0065] The adjustment height H of the bracket 4 is H2 - (H1 - H3) - H4. The sum of the radius of the second top plate 6 and the diameter of the pulley is denoted as H1. The distance from the center line of the hollow tube 8 to the ground is H2. The groove depth of the support plate 5 is H3. The thickness of the support plate 5 is H4.

[0066] Example 2:

[0067] The difference between this embodiment and embodiment 1 is that the bracket 4 includes several hydraulic rods, and the piston rod ends of each hydraulic rod are connected to the support plate 5. The extension and retraction of the hydraulic rods are controlled by the control system, thereby adjusting the height of the support plate 5.

[0068] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0069] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A tooling for installing hollow tubes in a wind turbine gearbox, characterized in that, include: Screw (1), one end of multiple screws (1) is fixedly connected to the outer end face of the output shaft (2) of the wind turbine gearbox, and the other end is connected to the first top plate (3). The bracket (4) has a support plate (5) fixed on its top. The support plate (5) has a groove along its length. The bracket (4) can adjust the height of the support plate (5). The second top plate (6) has a pulley (7) at its bottom. The pulley (7) can slide in the groove. The second top plate (6) is used to fix the outer end face of the hollow tube (8). The hollow tube (8) is fitted with a deep groove ball bearing (9) and an oil baffle assembly (10). The second top plate (6) has multiple force-bearing legs (11) fixed on the side away from the first top plate (3). The multiple force-bearing legs (11) are used to abut against the outer end face of the oil baffle assembly (10). The telescopic component (12) is disposed between the first top plate (3) and the second top plate (6).

2. The wind turbine gearbox hollow tube installation fixture according to claim 1, characterized in that, The first top plate (3) has symmetrical U-shaped notches (13) on its upper and lower edges. Each of the screws (1) is inserted into the corresponding U-shaped notch (13), and the first top plate (3) is fixed to the screw (1) by the locking nut (14) set at the end of the screw (1).

3. The wind turbine gearbox hollow tube installation fixture according to claim 1, characterized in that, The second top plate (6) is provided with two positioning countersunk holes (15), and the outer end face of the hollow tube (8) is provided with two threaded holes corresponding to the positioning countersunk holes (15). The second top plate (6) and the hollow tube (8) are fixedly connected by countersunk screws (16).

4. The wind turbine gearbox hollow tube installation fixture according to claim 3, characterized in that, The second top plate (6) has a pulley mounting hole (17) on its circumferential surface. The pulley mounting hole (17) is used to install the pulley (7). The number of the force-bearing legs (11) is 4.

5. The installation fixture for a hollow tube in a wind turbine gearbox according to claim 1, characterized in that, The telescopic component (12) is a hydraulic cylinder.

6. The wind turbine gearbox hollow tube installation fixture according to claim 5, characterized in that, The first top plate (3) has a first groove (18) on one side of the end face facing the second top plate (6), and the second top plate (6) has a second groove on one side of the end face facing the first top plate (3). The two ends of the hydraulic cylinder are respectively disposed in the first groove (18) and the second groove.

7. The wind turbine gearbox hollow tube installation fixture according to claim 6, characterized in that, The inner diameters of the first groove (18) and the second groove are respectively adapted to the outer diameters of the two ends of the hydraulic cylinder.

8. A wind turbine gearbox hollow tube installation fixture according to any one of claims 1-7, characterized in that, The bracket (4) includes several hydraulic rods, and the piston rod ends of each hydraulic rod are connected to the support plate (5).

9. A wind turbine gearbox hollow tube installation fixture according to any one of claims 1-7, characterized in that, The support (4) includes: Hollow fixed tube (19), and a bottom plate (20) is provided at the bottom of the two hollow fixed tubes (19). The first helical gear (21) is rotatably provided at the top end of the two hollow fixed tubes (19), and the inner hole of the first helical gear (21) is provided with an internal thread; Telescopic threaded rods (22), two telescopic threaded rods (22) are respectively arranged in two hollow fixed tubes (19), and the external thread of the telescopic threaded rods (22) is adapted to the internal thread of the first helical gear (21); A rotating rod (23) is rotatably mounted on two hollow fixed tubes (19), and a pair of second helical gears (24) that mesh with the first helical gear (21) are provided on the rotating rod (23). The handle (25) is connected to the rotating rod (23) and is used to drive the rotating rod (23) to rotate.

10. The wind turbine gearbox hollow tube installation fixture according to claim 9, characterized in that, The first helical gear (21) has a boss on one side, and the first helical gear (21) is rotatably connected to the hollow fixed tube (19) through a bearing.

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