A support device for gearbox torque arm replacement

Abstract

The utility model relates to a kind of gear box torque arm replacement's supporting device, including first plate piece, second plate piece, supporting piece and connecting piece, the one end of supporting piece and the one end of first plate piece fixed connection, first plate piece and second plate piece are detachably connected by connecting piece, first plate piece and second plate piece are used to be clamped in the opposite sides of cabin longitudinal beam.In narrow space, when replacing torque arm, first plate piece and second plate piece fixed with supporting piece are fixed on the cabin longitudinal beam near gear box by connecting piece, and then provide stable and reliable support hanging point for the hoisting equipment required for torque arm hoisting and running, after being fixed, the supporting device provides the support hanging point of certain horizontal height from torque arm, and then torque arm can be smoothly hoisted and run.The supporting device is easy to operate, and can smoothly carry out the replacement work of torque arm in narrow space, greatly improve work efficiency, reduce the security risk of replacement work.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine technology, and specifically to a support device for replacing the torque arm of a gearbox. Background Technology

[0002] The gearbox torque arm is a crucial component of wind turbine generators. As wind turbines age, the turbulence at the turbine location increases, leading to torque arm breakage. Due to the limited space for torque arm replacement and the arm's large size and weight of approximately 350 kg, manual replacement is not feasible. To achieve the necessary vertical lifting and horizontal transport within this confined space, reliable support points are needed to install hoists and other equipment. This ensures the torque arm can be lifted vertically and moved horizontally within the limited space, facilitating a smooth replacement process. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a reliable support device in a confined space, thereby providing effective hanging point support for vertical lifting and horizontal operation.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A support device for replacing the torque arm of a gearbox includes a first plate, a second plate, a support member and a connecting member. One end of the support member is fixedly connected to one end of the first plate. The first plate and the second plate are detachably connected through the connecting member. The first plate and the second plate are used to clamp on opposite sides of the longitudinal beam of the engine compartment.

[0005] The beneficial effects of this invention are as follows: When replacing the torque arm in a confined space, the first and second plates, each with a fixed support, are secured to the longitudinal beam of the engine compartment near the gearbox via connectors. This provides a stable and reliable support point for the hoisting equipment required for lifting and operating the torque arm. Once fixed, this support device provides a support point at a certain horizontal height from the torque arm, allowing for smooth lifting and operation. This support device is easy to operate, enabling torque arm replacement work to be carried out smoothly in confined spaces, greatly improving work efficiency and reducing safety risks during replacement.

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

[0007] Furthermore, at least two connection holes are provided at intervals on the other end of the first plate, and a slot is provided on the other side of one end of the first plate.

[0008] The beneficial effect of adopting the above-mentioned further solution is that by setting a slot, the slot and one side of the engine room longitudinal beam are engaged, and the first plate and the second plate are connected and fixed by a connector through the set connection hole, the reliability of the support device is improved.

[0009] Furthermore, the slot opening faces the connection hole.

[0010] The beneficial effects of adopting the above-mentioned further solution are: by setting the slot opening to face the connection hole, it can better cooperate and connect with the longitudinal beam of the cabin, and the support device can be reasonably installed in a narrow space, effectively utilizing the stable structure in the narrow space, thereby improving the stability of the support device.

[0011] Furthermore, the support member includes two support rods and a crossbar. The two support rods are spaced apart at one end of the first plate, and one end of each support rod is fixedly connected to one end of the first plate. The two ends of the crossbar are respectively fixedly connected to the other ends of the two support rods.

[0012] The advantages of adopting the above-mentioned further solution are: the two support rods, with a certain horizontal height compared to the torque arm, provide space for the lifting and operation of the torque arm, and the crossbar further strengthens the stability of the structure. When the lifting device selects the crossbar as the main hanging point, the crossbar connects the tops of the two support rods, so that the vertical load during lifting is evenly distributed to the support rods on both sides, avoiding overload on a single rod, improving the safety of the overall support device, and ensuring the smooth progress of the torque arm replacement work.

[0013] Furthermore, one end of the support rod is provided with multiple reinforcing ribs, which are fixedly connected to both the support rod and the first plate.

[0014] The beneficial effects of adopting the above-mentioned further solution are: setting a reinforcing rib at the connection between the support rod and the first plate can reduce the stress concentration at this part under repeated hoisting loads, prevent cracking due to long-term use, and thus prevent support failure, thereby extending the service life of the support device. At the same time, by adding a reinforcing rib at the connection between the support rod and the first plate, the bending resistance of the support rod root is improved, thereby improving the stability of the overall structure.

[0015] Furthermore, the plurality of reinforcing ribs are respectively arranged circumferentially at intervals along one end of the two support rods.

[0016] The beneficial effects of adopting the above-mentioned further solution are: multiple reinforcing ribs are arranged at intervals along the circumference of the support rod, making the load transfer path from the support rod to the first plate more uniform, avoiding damage to local areas due to excessive stress, improving the reliability of the connection parts, and enhancing the stability of the device under stress.

[0017] Furthermore, each of the support rods includes a first rod, a second rod, and a third rod. One end of the first rod is perpendicular to and fixedly connected to one end of the first plate. The other end of the first rod is perpendicular to and fixedly connected to one end of the second rod. The two ends of the third rod are fixedly connected to one end of the first rod and the other end of the second rod, respectively.

[0018] The beneficial effects of adopting the above-mentioned further scheme are: the right-angled triangular structure composed of the first, second and third rods, which connects the first and second rods through the third rod, forms a rigid connection frame. Compared with a single straight rod, the buckling resistance is significantly improved, and it can withstand greater vertical and horizontal loads, thereby ensuring the smooth progress of torque arm replacement.

[0019] Furthermore, the crossbar is positioned at the connection point between the second and third bars.

[0020] The beneficial effect of adopting the above-mentioned further solution is that by setting the crossbar at the connection between the second and third bars to form a rigid node at the top of the support member, the suspension force of the hoist is directly transmitted to the triangular structure of the support bars on both sides through the crossbar, thereby improving the stability of the support device structure.

[0021] Furthermore, the connector is in at least two sets, each set including a connecting bolt and a nut, with one end of the connecting bolt passing through the connecting hole and threadedly connected to the nut.

[0022] The beneficial effect of adopting the above-mentioned further solution is that by setting at least two sets of connecting bolts and nuts, with one end of the connecting bolt passing through the connecting hole and threadedly connected to the nut, the connection between the first plate and the second plate is more reliable and stable.

[0023] Furthermore, the second plate includes a main plate, one end of which is provided with at least two connecting holes, and the other side of the other end of the main plate is provided with a slot, the opening of which faces the connecting holes.

[0024] The beneficial effects of adopting the above-mentioned further solution are: a connecting hole is provided at one end of the second plate and a slot is provided on the other side of the other end of the second plate. When the support device is installed and fixed, the first plate and the second plate are perfectly matched and snapped into the longitudinal beam of the cabin, forming a symmetrical structure. The force is more balanced, avoiding eccentric loads caused by differences in plate structure, and further improving the overall stability. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the support device of this utility model; Figure 2 This is a schematic diagram showing the fixed connection between the support member and the first plate of this utility model; Figure 3 This is a schematic diagram of the first plate component of this utility model; Figure 4 This is a side view of the longitudinal beam of the engine room of this utility model.

[0026] The attached diagram lists the components represented by each number as follows: 1. First sidewall; 2. Second sidewall; 10. First plate; 20. Second plate; 30. Support; 31. Support rod; 32. Crossbar; 33. Reinforcing rib; 40. Connector; 50. Connecting hole; 60. Slot. Detailed Implementation

[0027] 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.

[0028] like Figures 1-3 As shown, this embodiment provides a support device for replacing the torque arm of a gearbox, including a first plate 10, a second plate 20, a support member 30, and a connector 40. One end of the support member 30 is fixedly connected to one end of the first plate 10. The first plate 10 and the second plate 20 are detachably connected through the connector 40. The first plate 10 and the second plate 20 are used to clamp on opposite sides of the longitudinal beam of the engine compartment.

[0029] When replacing the torque arm in a confined space, the first plate 10 and the second plate 20, which are fixed with the support member 30, are secured to the longitudinal beam of the engine compartment near the gearbox via the connector 40. This provides a stable and reliable support point for the hoisting equipment required for lifting and operating the torque arm. After being fixed, this support device expands the support height within a limited space, providing operating space for lifting and operating the torque arm, thus enabling the torque arm replacement work to be carried out smoothly. This support device is easy to operate, enabling the torque arm replacement work to be carried out smoothly in confined spaces, greatly improving work efficiency and reducing the safety risks of the replacement work.

[0030] Based on the above technical solution, at least two connecting holes 50 are provided at intervals on the other end of the first plate 10, and a slot 60 is provided on the other side of one end of the first plate 10.

[0031] By setting a slot 60, which engages with one side of the engine room longitudinal beam, and by setting a connection hole 50, the connector 40 passes through the connection hole 50 of the first plate 10 and the second plate 20 respectively, thereby connecting and fixing the first plate 10 and the second plate 20, the reliability of the support device is improved.

[0032] Specifically, the connecting hole 50 is a circular through hole.

[0033] Specifically, one end of the first plate 10 is bent to the other side and then extends in a direction parallel to its main body to form a U-shaped structure, which constitutes the slot 60.

[0034] Based on the above technical solution, the slot 60 faces the connection hole 50.

[0035] By setting the slot 60 so that its opening faces the connection hole 50, it can better cooperate and connect with the longitudinal beam of the cabin. The support device can be reasonably installed in a narrow space, making effective use of the stable structure in the narrow space, thereby improving the stability of the support device.

[0036] Based on the above technical solution, the support member 30 includes two support rods 31 and a crossbar 32. The two support rods 31 are spaced apart at one end of the first plate 10, and one end of each of the two support rods 31 is fixedly connected to one end of the first plate 10. The two ends of the crossbar 32 are respectively fixedly connected to the other ends of the two support rods 31.

[0037] The two support rods 31, with a certain horizontal height relative to the torque arm, provide space for the lifting and operation of the torque arm, while the crossbar 32 further reinforces the structural stability. When the lifting device uses the crossbar 32 as the main attachment point, the crossbar 32 connects the tops of the two support rods 31, ensuring that the vertical load during lifting is evenly distributed to the support rods 31 on both sides, preventing overload on a single rod, improving the safety of the overall support device, and ensuring the smooth progress of the torque arm replacement work.

[0038] Based on the above technical solution, one end of the support rod 31 is provided with a plurality of reinforcing ribs 33, and the reinforcing ribs 33 are fixedly connected to the support rod 31 and the first plate 10.

[0039] A reinforcing rib 33 is provided at the connection between the support rod 31 and the first plate 10, which can reduce the stress concentration at this part under repeated hoisting loads, prevent cracking due to long-term use, and thus prevent support failure, thereby extending the service life of the support device. At the same time, by adding a reinforcing rib 33 at the connection between the support rod 31 and the first plate 10, the bending resistance of the root of the support rod 31 is improved, thereby improving the stability of the overall structure.

[0040] Based on the above technical solution, multiple reinforcing ribs 33 are respectively arranged circumferentially at intervals along one end of the two support rods 31.

[0041] Multiple reinforcing ribs 33 are spaced apart around the support rod 31 to make the load transfer path from the support rod 31 to the first plate 10 more uniform, avoid damage to local areas due to excessive stress, improve the reliability of the connection parts, and enhance the stability of the device under stress.

[0042] Based on the above technical solution, each support rod 31 includes a first rod, a second rod, and a third rod. One end of the first rod is perpendicular to the first plate 10 and is fixedly connected to one end of the first plate 10. The other end of the first rod is perpendicular to and fixedly connected to one end of the second rod. The two ends of the third rod are respectively fixedly connected to one end of the first rod and the other end of the second rod.

[0043] The right-angled triangular structure composed of the first, second, and third rods, with the third rod connecting the first and second rods, forms a rigid connection frame. Compared to a single straight rod, this structure significantly improves buckling resistance and can withstand greater vertical and horizontal loads, thus ensuring the smooth operation of torque arm replacement.

[0044] Based on the above technical solution, the crossbar 32 is disposed at the connection between the second bar and the third bar.

[0045] By setting the crossbar 32 at the connection between the second and third bars, a rigid node is formed at the top of the support member 30, so that the suspension force of the hoist is directly transmitted to the triangular structure of the support bars 31 on both sides through the crossbar 32, thereby improving the stability of the support device structure.

[0046] Based on the above technical solution, the connector 40 is at least two sets, and each set of connector 40 includes a connecting bolt and a nut. One end of the connecting bolt passes through the connecting hole 50 and is threadedly connected to the nut.

[0047] By setting at least two sets of connecting bolts and nuts, with one end of the connecting bolt passing through the connecting hole 50 and threadedly connected to the nut, the connection between the first plate 10 and the second plate 20 is made more reliable and stable.

[0048] Optionally, the connector 40 can also be a lead screw and a nut, with the lead screw passing through the connecting holes 50 of the first plate 10 and the second plate 20 respectively, and both ends of the lead screw being locked and fixed with nuts.

[0049] In this application, there are no restrictions on the connector 40, as long as it can connect and fix the first plate 10 and the second plate 20. The shape of the connecting hole 50 is also not restricted, as long as it matches the connector 40.

[0050] Based on the above technical solution, the second plate 20 includes a main plate, one end of which is provided with at least two connecting holes 50, and the other side of the other end of the main plate is provided with a slot 60, the slot opening of which faces the connecting hole 50.

[0051] A connecting hole 50 is provided at one end of the second plate 20, and a slot 60 is provided on the other side of the other end of the second plate 20. When the support device is installed and fixed, the first plate 10 and the second plate 20 with the same structure can be matched and connected with the longitudinal beam of the cabin to form a symmetrical structure, which makes the force more balanced and avoids eccentric load caused by the difference in plate structure, thereby further improving the overall stability.

[0052] Specifically, the first plate 10 and the second plate 20 have the same structure, both including a main plate. One end of the main plate is provided with at least two connecting holes 50. The other end of the main plate is first bent to the other side and then extended in a direction parallel to the main plate to form a U-shaped structure, which constitutes the slot 60.

[0053] In a specific example, when the torque arm needs to be replaced, the support device is first fixed to the nacelle longitudinal beam, which is an I-beam, such as... Figure 4 As shown. First, the slot 60 of the first plate 10, to which the support member 30 is fixed, is engaged with the first side wall 1 of the engine room longitudinal beam. Then, the slot 60 of the second plate 20 is engaged with the second side wall 2 of the engine room longitudinal beam. Finally, multiple bolts are passed through the connecting holes 50 of the first plate 10 and the second plate 20, respectively, and tightened with nuts, thus completing the installation and fixing of the support device. This support device provides a reliable and stable support point in a confined space and expands the support height within a limited space, providing operating space for the lifting and operation of the torque arm, thereby facilitating the replacement of the torque arm, greatly improving work efficiency, and reducing the operational risks of the replacement work.

[0054] 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.

[0055] 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.

[0056] 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 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.

[0057] 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.

[0058] 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.

[0059] 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 changing the torque arm of a gearbox, characterized in that, It includes a first plate (10), a second plate (20), a support (30), and a connector (40). One end of the support (30) is fixedly connected to one end of the first plate (10). The first plate (10) and the second plate (20) are detachably connected through the connector (40). The first plate (10) and the second plate (20) are used to clamp on opposite sides of the cabin longitudinal beam.

2. The support device for changing the torque arm of a gearbox according to claim 1, characterized in that, At least two connecting holes (50) are provided at intervals on the other end of the first plate (10), and a slot (60) is provided on the other side of one end of the first plate (10).

3. The support device for changing the torque arm of a gearbox according to claim 2, characterized in that, The slot (60) faces the connection hole (50).

4. The support device for changing the torque arm of a gearbox according to claim 1, characterized in that, The support member (30) includes two support rods (31) and a crossbar (32). The two support rods (31) are spaced apart at one end of the first plate (10). One end of each of the two support rods (31) is fixedly connected to one end of the first plate (10). The two ends of the crossbar (32) are fixedly connected to the other ends of the two support rods (31) respectively.

5. The support device for changing the torque arm of a gearbox according to claim 4, characterized in that, One end of the support rod (31) is provided with a plurality of reinforcing ribs (33), and the reinforcing ribs (33) are fixedly connected to both the support rod (31) and the first plate (10).

6. The support device for changing the torque arm of a gearbox according to claim 5, characterized in that, Multiple reinforcing ribs (33) are respectively arranged circumferentially at intervals along one end of the two support rods (31).

7. The support device for changing the torque arm of a gearbox according to claim 4, characterized in that, Each of the support rods (31) includes a first rod, a second rod, and a third rod. One end of the first rod is perpendicular to the first plate (10) and is fixedly connected to one end of the first plate (10). The other end of the first rod is perpendicular to and fixedly connected to one end of the second rod. The two ends of the third rod are fixedly connected to one end of the first rod and the other end of the second rod, respectively.

8. The support device for changing the torque arm of a gearbox according to claim 7, characterized in that, The crossbar (32) is located at the connection between the second bar and the third bar.

9. A support device for changing the torque arm of a gearbox according to claim 2 or 3, characterized in that, The connector (40) is at least two sets, and each set of connectors (40) includes a connecting bolt and a nut. One end of the connecting bolt passes through the connecting hole (50) and is threadedly connected to the nut.

10. A support device for changing the torque arm of a gearbox according to any one of claims 4-8, characterized in that, The second plate (20) includes a main plate, one end of which is provided with at least two connecting holes (50), and the other side of the other end of the main plate is provided with a slot (60), the opening of the slot (60) facing the connecting hole (50).

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