A support device for replacing high-speed shafts in gearboxes

Abstract

This utility model relates to a support device for replacing a high-speed shaft in a gearbox, comprising a base, a support portion, and a connecting portion. One end of the support portion is connected to one end of the base, and the other end of the base has a clearance space. The connecting portion is disposed in the clearance space and fixedly connected to the base, and the other end of the support portion has a through hole. By setting up the base, support portion, and connecting portion, the connecting portion can firstly securely fix the support device to the lifting point of the gearbox, while the clearance space of the base cleverly places the lifting point within it, avoiding interference during operation. The support portion can provide stable support for the high-speed shaft of the gearbox, thus solving the problem of the lack of a pre-set lifting point in the engine room of the combined power aircraft. This support device achieves reliable support for the high-speed shaft, reducing the difficulty and danger of manual operation.

Description

Technical Field

[0001] This utility model relates to the field of high-speed shaft repair technology for gearboxes, specifically to a support device for replacing high-speed shafts in gearboxes. Background Technology

[0002] As the operating years of United Power wind turbines increase, the high-speed shaft of the gearbox and its bearings gradually wear out and fail. Since the United Power nacelle lacks pre-designed lifting points, replacement work cannot be performed by fixing the shaft within the nacelle. Manual operation is difficult and dangerous. Currently, there is an urgent need for a stable and reliable support device to smoothly complete the replacement of the high-speed shaft of United Power units. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a stable and reliable support device to ensure the smooth and safe replacement of the high-speed shaft of the gearbox.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A support device for replacing the high-speed shaft of a gearbox includes a base, a support part and a connecting part. One end of the support part is connected to one end of the base. The other end of the base is provided with a clearance space. The connecting part is provided in the clearance space and is fixedly connected to the base. The other end of the support part is provided with a through hole.

[0005] The beneficial effects of this invention are as follows: By setting a base, a support part, and a connecting part, the connecting part can firstly securely fix the support device to the lifting point of the gearbox, while the clever placement of the clearance space in the base places the lifting point inside, avoiding interference during operation. The support part can provide stable support for the high-speed shaft of the gearbox, thus solving the problem of the lack of a pre-set lifting point in the engine room of the combined power engine model. This support device achieves reliable support for the high-speed shaft, reducing the difficulty and danger of manual operation.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, a hanging point is provided at the other end of the support, and a through hole is provided at one end of the hanging point.

[0008] The beneficial effects of adopting the above-mentioned further solution are: a hanging point is set at the other end of the support, and a through hole is set at one end of the hanging point, so that the hanging point can be directly connected to the hoisting equipment, which facilitates the replacement of the high-speed shaft with the assistance of external hoisting force, further simplifies the operation process and improves the safety of operation.

[0009] Furthermore, the support portion is provided with a plurality of first threaded holes spaced apart from one end to the other end, and the other end of the hanging point is detachably connected to one of the first threaded holes.

[0010] The beneficial effects of adopting the above-mentioned further solution are: multiple first threaded holes are provided at intervals on the support part, and the hanging point and the first threaded hole can be detachably connected, so that the installation position of the hanging point can be flexibly adjusted according to the actual situation, so that the tooling can adapt to the support or hoisting requirements under different working conditions, and enhance the versatility of the tooling and its compatibility with the combined power model.

[0011] Furthermore, the other end of the hanging point is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is provided with an external thread. The other end of the connecting rod passes through the first threaded hole and is threadedly connected to the first nut.

[0012] The advantages of adopting the above-mentioned further solution are: the hanging point is detachably connected through the cooperation of the connecting rod, the first threaded hole and the first nut; the threaded connection structure of the connecting rod and the first threaded hole can ensure that the hanging point is firmly fixed; at the same time, the position of the hanging point can be flexibly adjusted by selecting different first threaded holes, thus taking into account both the reliability of the connection and the flexibility of position adjustment.

[0013] Furthermore, the clearance space is a recessed plane at the other end of the base, and the connecting part includes a screw and a locking nut. One end of the screw is fixedly connected to the recessed plane, and the locking nut is threadedly connected to the other end of the screw.

[0014] The beneficial effects of adopting the above-mentioned further solution are as follows: the concave plane serves as a clearance space, which facilitates fixing the lifting point of the gearbox and the connecting part within the concave plane, thereby reducing operational interference; the connecting part adopts a screw and lock nut mating structure, which can be connected to the lifting point of the gearbox through the screw and tightened by the lock nut, realizing the quick and stable fixing of the device and the gearbox, thus providing a stable and reliable support device for the working condition of the combined power model without a preset lifting point, making the installation and disassembly of the high-speed shaft of the gearbox safe, convenient and time-saving.

[0015] Furthermore, the base includes a base groove and a base slider. The base slider is disposed in the base groove. The support part and the base slider are fixedly connected and slide in cooperation with the base groove. The clearance space is disposed at one end of the base groove.

[0016] The beneficial effects of adopting the above-mentioned further solution are: the sliding cooperation between the base groove and the base slider allows the support part to move flexibly along the length of the base, and the support point can be adjusted according to the actual position of the high-speed shaft, so that the support part can be accurately aligned with the position to be supported of the high-speed shaft, solving the problem of the adaptation of the support position under different working scenarios, and further improving the adaptability of the tooling to the unit structure.

[0017] Furthermore, the base slide groove is provided with a first through hole, and the base slider is provided with a second threaded hole; it also includes a second bolt and a second nut, one end of the second bolt passes through the second threaded hole and the first through hole, and is threadedly connected to the second nut.

[0018] The beneficial effects of adopting the above-mentioned further solution are: the mating structure of the second bolt and the second nut can firmly lock the base slider and the base groove after the support part is adjusted to the correct position, preventing the support part from shifting due to vibration or load changes during operation, ensuring the stability of the support position, avoiding the risk of high-speed shaft shaking or falling, and improving the safety of operation.

[0019] Furthermore, a groove is provided in the middle of the side of the base slider away from the bottom of the base groove, and the other end of the second bolt abuts against the groove.

[0020] The beneficial effect of adopting the above-mentioned further solution is that by setting a groove on the base slider, the bolt head end of the second bolt is located exactly in the groove, thereby avoiding interference of the second bolt during the replacement of the high-speed shaft and affecting the smooth progress of the replacement work.

[0021] Furthermore, there are multiple first through holes, at least two second threaded holes, and at least two second bolts and two second nuts.

[0022] By setting multiple first through holes, the height of the support can be adjusted as needed, thus providing better support. At least two second threaded holes, second bolts, and second nuts are provided to make the connection between the support and the base more secure, thereby making the entire support device more stable and ensuring the smooth progress of the replacement work.

[0023] Furthermore, one end of the support and one end of the base are rotatably connected by a screw.

[0024] The beneficial effects of adopting the above-mentioned further solution are: the support part and the base are rotatably connected by a screw, so that the support part can rotate around the connection point to adjust the support angle to adapt to different support requirements during the replacement of the high-speed shaft. In particular, when there is an angular deviation in the position of the high-speed shaft, precise alignment can be achieved by rotating the support part, thereby improving the adaptability and ease of operation of the device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the support device according to Embodiment 1 of this utility model;

[0026] Figure 2 This is a schematic diagram of the support device in Embodiment 2 of this utility model;

[0027] Figure 3This is a schematic diagram of the support device in Embodiment 3 of this utility model;

[0028] Figure 4 This is a schematic diagram of the support device in Embodiment 4 of this utility model;

[0029] Figure 5 This is a schematic diagram of the support device in Embodiment 5 of this utility model (connection state of the support device and the gearbox lifting point).

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 10. Base; 11. Base slide groove; 12. Base slider; 13. Groove; 20. Support part; 21. First threaded hole; 30. Connecting part; 31. Screw; 32. Locking nut; 40. Hanging point; 50. Connecting rod; 60. First nut; 70. Concave plane; 1. Lifting point of gearbox. Detailed Implementation

[0032] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0033] Example 1

[0034] like Figure 1 As shown, this embodiment provides a support device for replacing the high-speed shaft of a gearbox, including a base 10, a support part 20 and a connecting part 30. One end of the support part 20 is connected to one end of the base 10, and the other end of the base 10 is provided with a clearance space. The connecting part 30 is disposed in the clearance space and fixedly connected to the base 10. The other end of the support part 20 is provided with a through hole.

[0035] By configuring a base 10, a support 20, and a connecting part 30, the connecting part 30 can first securely fix the support device to the lifting point 1 of the gearbox, while the base 10 cleverly places the lifting point within its clearance space to avoid interference during operation. The support 20 provides stable support for the high-speed shaft of the gearbox, thus solving the problem of the lack of a pre-set lifting point in the engine room of the combined power unit. This support device achieves reliable support for the high-speed shaft, reducing the difficulty and danger of manual operation.

[0036] Based on the above technical solution, the other end of the support part 20 is provided with a hanging point 40, and one end of the hanging point 40 is provided with a through hole.

[0037] The other end of the support part 20 is provided with a hanging point 40, and one end of the hanging point 40 is provided with a through hole, so that the hanging point 40 can be directly connected to the hoisting equipment, which facilitates the replacement of the high-speed shaft with the assistance of external hoisting force, further simplifies the operation process and improves the safety of operation.

[0038] In Embodiment 1, one end of the support part 20 is fixedly connected to one end of the base 10, and the hanging point 40 is fixedly set at the other end of the support part 20. In use, the connecting part 30 is fixedly connected to the lifting point 1 of the gearbox, thus providing a stable support device in conjunction with the base 10 and the support part 20. The hanging point 40 at the other end of the support part 20, when used with lifting equipment such as a hoist, allows for the smooth positioning and installation of the high-speed shaft without the need for manual handling. This support device provides effective support and a reliable hanging point 40, making the replacement of the high-speed shaft time-saving, labor-saving, safe, and efficient.

[0039] Example 2

[0040] Based on the above technical solution, the support part 20 is provided with a plurality of first threaded holes 21 at intervals from one end to the other end, and the other end of the hanging point 40 is detachably connected to one of the first threaded holes 21.

[0041] Multiple first threaded holes 21 are provided at intervals on the support rod, so that the installation position of the hanging point 40 can be flexibly adjusted according to the actual situation, so that the tooling can adapt to the support or hoisting requirements under different working conditions, enhancing the versatility of the tooling and its compatibility with the combined power model.

[0042] Based on the above technical solution, the other end of the hanging point 40 is fixedly connected to one end of the connecting rod 50, and the other end of the connecting rod 50 is provided with an external thread. The other end of the connecting rod 50 passes through the first threaded hole 21 and is threadedly connected to the first nut 60.

[0043] The hanging point 40 is detachably connected through the cooperation of the connecting rod 50, the first threaded hole 21 and the first nut 60. The threaded connection structure of the connecting rod 50 and the first threaded hole 21 can ensure that the hanging point 40 is firmly fixed. At the same time, the position of the hanging point 40 can be flexibly adjusted by selecting different first threaded holes 21, which takes into account both the reliability of the connection and the flexibility of position adjustment.

[0044] In Example 2, as Figure 2 As shown, unlike Embodiment 1, the support part 20 is provided with a plurality of first threaded holes 21 at intervals from one end to the other end, so that the position of the hanging point 40 can be flexibly adjusted according to the actual situation.

[0045] Based on the above technical solution, the clearance space is a recessed plane 70 provided at the other end of the base 10, and the connecting part 30 includes a screw 31 and a locking nut 32. One end of the screw 31 is fixedly connected to the recessed plane 70, and the locking nut 32 is threadedly connected to the other end of the screw 31.

[0046] The recessed plane 70 serves as a clearance space, facilitating the fixing of the gearbox's lifting point 1 and the connecting part 30 within the recessed plane 70, thereby reducing operational interference. The connecting part 30 employs a screw 31 and a locking nut 32 mating structure, allowing connection between the screw 31 and the gearbox's lifting point, and securing with the locking nut 32. This enables rapid and stable fixing of the device to the gearbox, providing a stable and reliable support device for combined power models operating without pre-set lifting points. This makes the installation and disassembly of the gearbox's high-speed shaft safe, convenient, time-saving, and labor-saving.

[0047] Specifically, the gearbox's lifting point 1 is provided with a mounting hole. By passing the screw 31 through the mounting hole and then locking it with the lock nut 32, the support device is fixed to the gearbox.

[0048] Example 3

[0049] Based on the above technical solution, the base 10 includes a base slide groove 11 and a base slider 12. The base slider 12 is disposed in the base slide groove 11. The support part 20 and the base slider 12 are fixedly connected and slide in cooperation with the base slide groove 11. The clearance space is disposed at one end of the base slide groove 11.

[0050] The sliding engagement between the base groove 11 and the base slider 12 allows the support part 20 to move flexibly along the length of the base 10. The support point can be adjusted according to the actual position of the high-speed shaft, so that the support part 20 can be accurately aligned with the position to be supported on the high-speed shaft. This solves the problem of adapting the support position under different operating scenarios and further improves the adaptability of the tooling to the unit structure. The setting of the clearance space makes it easy to fix the gearbox lifting point 1 and the connecting part 30 inside, thereby reducing operational interference and ensuring the smooth progress of the replacement work.

[0051] Based on the above technical solution, the base slide 11 is provided with a first through hole, and the base slider 12 is provided with a second threaded hole; it also includes a second bolt and a second nut, one end of the second bolt passes through the second threaded hole and the first through hole, and is threadedly connected to the second nut.

[0052] The mating structure of the second bolt and the second nut can securely lock the base slider 12 and the base groove 11 after the support part 20 is adjusted to the correct position. This prevents the support part 20 from shifting due to vibration or load changes during operation, ensuring the stability of the support position, avoiding the risk of high-speed shaft shaking or falling, and improving the safety of operation.

[0053] In Example 3, as Figure 3As shown, unlike Embodiment 2, the base 10 is equipped with a base groove 11 and a base slider 12, so that the overall height of the base 10 is adjustable. This allows the height of the base 10 to be adjusted adaptively according to the actual situation, so as to provide better support during the high-speed shaft replacement process.

[0054] Example 4

[0055] Based on the above technical solution, a groove 13 is provided in the middle of the side of the base slider 12 away from the bottom of the base groove 11, and the other end of the second bolt abuts against the groove 13.

[0056] By setting a groove 13 on the base slider 12, the bolt head of the second bolt is positioned exactly at the groove 13, thereby avoiding interference from the second bolt during the replacement of the high-speed shaft and ensuring the smooth progress of the replacement work.

[0057] Based on the above technical solution, there are multiple first through holes, at least two second threaded holes, and at least two second bolts and two second nuts.

[0058] By setting multiple first through holes, the height of the support part 20 can be adjusted as needed, providing better support. Compared to one fixed point, setting two fixed points is more reliable. Therefore, at least two second threaded holes are set, and the second bolts and second nuts are set one-to-one with the second threaded holes. That is, there are at least two second bolts and two second nuts, which can make the connection between the support part 20 and the base 10 more secure, thereby making the entire support device more stable and ensuring the smooth progress of the replacement work.

[0059] In Example 4, as Figure 4 As shown, unlike embodiment 3, a groove 13 is provided on the base slider 12 to limit the second bolt, so that the bolt head end of the second bolt is located at the groove 13, thereby avoiding interference of the second bolt during the replacement of the high-speed shaft and ensuring the smooth progress of the high-speed shaft replacement work.

[0060] Example 5

[0061] Based on the above technical solution, one end of the support part 20 and one end of the base 10 are rotatably connected by a screw.

[0062] The support part 20 is rotatably connected to the base 10 by a screw, allowing the support part 20 to rotate around the connection point, thereby adjusting the support angle to adapt to different support requirements during the replacement of the high-speed shaft. Especially when there is an angular deviation in the position of the high-speed shaft, precise alignment can be achieved by rotating the support part 20, improving the adaptability and ease of operation of the device.

[0063] Specifically, a second through hole is provided at one end of the support part 20, and a screw is fixedly provided at one end of the base 10. The screw passes through the second through hole. After the position of the support part 20 is adjusted, it is locked by a nut, thereby fixing the support part 20 and the base 10.

[0064] In Example 5, as Figure 5 As shown, unlike Embodiment 1, the support part 20 can rotate around the screw. After adjusting the support angle, it is locked by the nut, thereby fixing the support part 20 to the base 10. When replacing the high-speed shaft, it can provide precise positioning and stable support.

[0065] In a specific example, such as Figure 5 As shown, for the UP115-2000 unit, the high-speed shaft of its gearbox is heavy (usually several hundred kilograms). There are no lifting points in the engine room platform, so the high-speed shaft cannot be effectively fixed. Manual handling and positioning are prone to accidents such as the heavy object slipping, tipping or crushing, which seriously threaten the personal safety of operators and the safety of equipment. There is also a risk of coordination errors when multiple people are working together. By using this support device, the positioning and installation of the high-speed shaft can be completed efficiently, time-saving and labor-saving. The specific operation process is as follows: First, fix the connecting part 30 at the other end of the base 10 to the gearbox lifting point. Since there is an angular deviation between the mounting hole of the high-speed shaft and the position of the base 10 and the gearbox lifting point, rotate the support part 20 around the screw to adjust the position angle. Fix the hand chain hoist at the hanging point 40, connect one end of the sling to the hand chain hoist, and tie the other end of the sling to the middle rear section of the high-speed shaft. The front end of the high-speed shaft faces the high-speed shaft mounting hole. After fixing the high-speed shaft, lift the high-speed shaft with the hand chain hoist. After lifting it to a certain height, manually assist in gently lifting the front end of the high-speed shaft to align it with the high-speed shaft mounting hole. By pulling the hand chain hoist, adjust the lifting height of the high-speed shaft to be equal to the height of the high-speed shaft mounting hole. Then, manually push the high-speed shaft completely into the mounting hole, and then perform subsequent glue fixation and installation of other accessories, thus successfully completing the replacement of the high-speed shaft.

[0066] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0069] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A support device for replacing the high-speed shaft of a gearbox, characterized in that, It includes a base (10), a support (20) and a connecting part (30). One end of the support (20) is connected to one end of the base (10), and the other end of the base (10) is provided with a clearance space. The connecting part (30) is provided in the clearance space and is fixedly connected to the base (10). The other end of the support (20) is provided with a through hole.

2. The support device for replacing the high-speed shaft of a gearbox according to claim 1, characterized in that, The other end of the support (20) is provided with a hanging point (40), and one end of the hanging point (40) is provided with a through hole.

3. The support device for replacing the high-speed shaft of a gearbox according to claim 2, characterized in that, The support part (20) is provided with a plurality of first threaded holes (21) spaced apart from one end to the other end, and the other end of the hanging point (40) is detachably connected to one of the first threaded holes (21).

4. The support device for replacing the high-speed shaft of a gearbox according to claim 3, characterized in that, The other end of the hanging point (40) is fixedly connected to one end of the connecting rod (50). The other end of the connecting rod (50) is provided with an external thread. The other end of the connecting rod (50) passes through the first threaded hole (21) and is threadedly connected to the first nut (60).

5. The support device for replacing the high-speed shaft of a gearbox according to claim 1, characterized in that, The clearance space is a recessed plane (70) set at the other end of the base (10). The connecting part (30) includes a screw (31) and a locking nut (32). One end of the screw (31) is fixedly connected to the recessed plane (70), and the locking nut (32) is threadedly connected to the other end of the screw (31).

6. The support device for replacing the high-speed shaft of a gearbox according to claim 1, characterized in that, The base (10) includes a base groove (11) and a base slider (12). The base slider (12) is disposed in the base groove (11). The support (20) and the base slider (12) are fixedly connected and slide in cooperation with the base groove (11). The clearance space is disposed at one end of the base groove (11).

7. The support device for replacing the high-speed shaft of a gearbox according to claim 6, characterized in that, The base slide groove (11) is provided with a first through hole, and the base slider (12) is provided with a second threaded hole; it also includes a second bolt and a second nut, one end of the second bolt passes through the second threaded hole and the first through hole, and is threadedly connected to the second nut.

8. The support device for replacing the high-speed shaft of a gearbox according to claim 7, characterized in that, The base slider (12) has a groove (13) in the middle of the side away from the bottom of the base slide groove (11), and the other end of the second bolt abuts against the groove (13).

9. The support device for replacing the high-speed shaft of a gearbox according to claim 7, characterized in that, There are multiple first through holes, at least two second threaded holes, and at least two second bolts and at least two second nuts.

10. The support device for replacing the high-speed shaft of a gearbox according to claim 1, characterized in that, One end of the support (20) and one end of the base (10) are rotatably connected by a screw.

Images