Supporting device and gear box comprising same
By designing a limiting structure for the support device to expand the projected size of the elastic component, the problem of insufficient load-bearing capacity of the elastic support for the wind turbine gearbox was solved, achieving higher load-bearing capacity and vibration reduction effect, and reducing maintenance and operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ELECTRIC WIND POWER GRP CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-04-17
AI Technical Summary
The existing wind turbine gearboxes have insufficient elastic support load-bearing capacity, leading to frequent damage and making them difficult to maintain effectively under wind farm conditions, resulting in losses in terms of working hours, materials, and power generation.
Design a support device including first and second elastic elements and corresponding extensions and connectors. The projected size of the elastic elements is fixed and enlarged by a limiting structure to improve load-bearing capacity and vibration and noise reduction performance, and to avoid frequent damage to the elastic elements.
Without changing the size of the torque arm, the load-bearing and vibration damping capacity of the elastic element is improved, the need for frequent replacement of spare parts is reduced, and the maintenance frequency and operating costs are lowered.
Smart Images
Figure CN224135141U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind turbine gearbox design, and in particular to a support device and a gearbox including the support device. Background Technology
[0002] In wind power systems, the gearbox of a wind turbine plays a crucial role. The wind turbine rotates under the influence of wind, but this rotational speed is relatively slow, typically between a few revolutions per minute (RPM) and a dozen revolutions per minute (TPM). To enable the generator to produce electricity efficiently, this low-speed rotation needs to be increased to hundreds or even thousands of RPM. This requires a gearbox to convert the low-speed rotation of the wind turbine shaft into the high-speed rotation required by the generator. The gearbox consists of a main body and a torque arm connected to it. The torque arm is used to fix the main body of the gearbox, preventing it from rotating due to torque during operation and maintaining the stability of the gearbox.
[0003] Torque arms require supports to maintain stability. During gearbox operation, the torque arm is subjected to various vibrations and impacts. Therefore, using rigid supports to support the torque arm would cause damage to weak points in the structure (such as the junction between the support and the torque arm). Using elastic supports to support the torque arm can absorb and buffer the loads from vibrations and impacts, thus serving to bear loads, reduce vibrations, and protect the gearbox. Typically, elastic supports consist of two elastic bodies that fit against the upper and lower surfaces of the torque arm.
[0004] For wind farms where actual wind conditions exceed design values, or for wind turbine generators undergoing upgrades or renovations, the lifespan of elastic supports will be accelerated. Currently, commonly used elastic supports mainly include disc spring rubber elastic supports and hydraulic elastic supports, both of which inevitably experience elastomer damage.
[0005] The current solutions are: 1. Replace the original elastomer spare parts; 2. Replace with new brand elastomer supports of the same size and specifications. Due to the structural and space limitations of the gearbox and frame, and the inconvenience of modifying the gearbox and nacelle frame in the wind farm, it is usually difficult to replace the elastomers with larger models of elastomer supports. Replacing with elastomers of the same size and specifications does not fundamentally solve the problem, because it does not improve the load-bearing capacity of the elastomer supports. The elastomer supports will continue to fail frequently, causing losses in man-hours, materials, and power generation. Utility Model Content
[0006] The technical problem to be solved by this utility model is to overcome the defect of insufficient elastic support load-bearing capacity of the gearbox in the prior art, which leads to frequent damage, and to provide a support device and a gearbox including the same.
[0007] The present invention solves the above-mentioned technical problems through the following technical solution:
[0008] A support device for elastically supporting a torque arm of a gearbox, the support device comprising a first elastic element and a second elastic element for clamping the torque arm;
[0009] The support device further includes a first extension member and a second extension member, wherein the first extension member is disposed on the side of the first elastic member facing the second elastic member, and the second extension member is disposed on the side of the second elastic member facing the first elastic member.
[0010] Along the clamping direction, the orthographic projection size of the outer contour of the first extension is greater than the orthographic projection size of the first elastic member, and the orthographic projection size of the outer contour of the second extension is greater than the orthographic projection size of the second elastic member.
[0011] The support device further includes a first connector, which is used to fix the first extension and the second extension;
[0012] The support device further includes an extension limiting member, which is installed on the side of the first extension member close to the first elastic member to limit the horizontal displacement of the end of the first elastic member.
[0013] The extension limiting member is also installed on the side of the second extension member close to the second elastic member to limit the horizontal displacement of the end of the second elastic member.
[0014] In this technical solution, by providing the support device, a first extension and a second extension are added. The first and second extensions are fixed by a first connector, and the horizontal displacement of the ends of the first and second elastic elements is limited by an extension limiting member. This prevents excessive horizontal displacement of the extensions and elastic elements during pressurization, thus avoiding the problem of popping out. The design of the first extension increases the projected size of the first elastic element that the torque arm can support, and the design of the second extension increases the projected size of the second elastic element that the torque arm can support. Compared with the prior art, this support device can use first and second elastic elements with larger cross-sections perpendicular to the clamping direction while keeping the size of the torque arm unchanged. This improves the torsional load-bearing capacity, vibration reduction, and noise reduction capabilities of the first and second elastic elements, avoiding frequent damage and replacement of spare parts, and reducing losses in terms of working hours, materials, and power generation.
[0015] Preferably, along a horizontal direction perpendicular to the inner to outer side of the support device, the length of the first extension is greater than the length of the first elastic member; and / or,
[0016] Along a horizontal direction perpendicular to the inside to the outside of the support device, the length of the second extension is greater than the length of the second elastic member.
[0017] In this technical solution, by setting the length of the first extension member to be greater than the length of the first elastic member along a horizontal direction perpendicular to the inner and outer sides of the support device, it is ensured that the contact surface between the first elastic member and the first extension member is completely confined within the range of the first extension member in its length direction. This design further improves the stability of the first elastic member, ensures the support effect, and avoids the problem of the support device becoming unbalanced due to small-amplitude slippage of the first elastic member.
[0018] By setting the length of the second extension member to be greater than the length of the second elastic member in a horizontal direction perpendicular to the inside and outside of the support device, it is ensured that the contact surface between the second elastic member and the second extension member is completely confined within the range of the second extension member in its length direction. This design further improves the stability of the second elastic member, guarantees the support effect, and avoids the problem of the support device becoming unbalanced due to small-amplitude slippage of the second elastic member.
[0019] Preferably, the support device further includes a support member, the two ends of which are respectively connected to the outer ends of the first extension member and the second extension member facing the outside of the support device.
[0020] In this technical solution, the above-mentioned arrangement enables the support member to provide a supporting force to the first extension member and the second extension member, thereby preventing the first extension member and the second extension member from being suspended and deformed, and further improving the load-bearing capacity and service life of the support device.
[0021] Preferably, the support device further includes a second connector, which passes through the support.
[0022] In this technical solution, the torque arm and the support can be fixed together by the second connector, thereby reducing the possibility of relative sliding between the torque arm and the support and further improving the stability of the support.
[0023] Preferably, the first connector passes through the first extension; and / or,
[0024] The first connector passes through the second extension.
[0025] In this technical solution, by setting a first connector to pass through the first extension, the torque arm and the first extension can be fixed together by the first connector, thereby reducing the possibility of relative sliding between the first extension and the torque arm and further improving the stability of the first extension.
[0026] By setting the first connector to pass through the second extension, the torque arm and the second extension can be fixed together by the first connector, thereby reducing the possibility of relative sliding between the second extension and the torque arm and further improving the stability of the second extension.
[0027] Preferably, the support device has a receiving space located between the first elastic member and the second elastic member for clamping the torque arm;
[0028] The support device further includes a support frame surrounding the accommodating space, the first extension, the second extension, the first elastic member, and the second elastic member. The ends of the first elastic member and the second elastic member that are relatively far from the accommodating space are respectively positioned against the support frame.
[0029] In this technical solution, the above-mentioned settings can further position the elastic element, limit its displacement, and further improve the stability of the support device.
[0030] Preferably, the support frame includes a crossbeam, a base plate, and multiple support columns, all of which surround the accommodating space, the first extension, the second extension, the first elastic member, and the second elastic member.
[0031] The upper ends of the support columns are all connected to the crossbeams, and the lower ends of the support columns are all connected to the base plate.
[0032] In this technical solution, the above-mentioned arrangement enables the support column, crossbeam and base plate to form a relatively stable three-dimensional support structure around the torsion arm, further improving the stability of the support device and enhancing its impact resistance.
[0033] Preferably, the first elastic element is a cylinder, the lower surface of the crossbeam is attached to the upper surface of the first elastic element, and the portion of the lower surface of the crossbeam and the upper surface of the first elastic element that are attached is a circular surface that matches the size of the first elastic element; and / or,
[0034] The second elastic element is a cylinder, and the upper surface of the base plate is attached to the lower surface of the second elastic element. The part of the upper surface of the base plate and the lower surface of the second elastic element that are attached to each other is a circular surface that matches the size of the second elastic element.
[0035] In this technical solution, by setting the first elastic element as a cylinder, the lower surface of the crossbeam is attached to the upper surface of the first elastic element, and the part of the lower surface of the crossbeam and the upper surface of the first elastic element that are attached to each other is a circular surface that matches the size of the first elastic element. This can ensure that the load applied by the first elastic element to the crossbeam is evenly distributed, reduce local stress concentration, and extend the service life of the elastic element and the crossbeam.
[0036] By setting the second elastic element as a cylinder, the upper surface of the base plate is attached to the lower surface of the second elastic element, and the part of the upper surface of the base plate and the lower surface of the second elastic element that are attached to each other is a circular surface that matches the size of the second elastic element. This can ensure that the load applied by the second elastic element to the base plate is evenly distributed, reduce local stress concentration, and extend the service life of the elastic element and the crossbeam.
[0037] Preferably, the support frame further includes an adjusting member that connects the upper end of the support column and the crossbeam.
[0038] In this technical solution, the above-mentioned settings make the gap between the upper end of the support column and the crossbeam adjustable, improving the adaptability of the support frame and meeting the installation requirements of elastic components of different sizes.
[0039] A gearbox includes a torque arm and a support device as described above.
[0040] In this technical solution, by providing this gearbox, losses in terms of working hours, materials, and power generation are reduced, and the maintenance frequency and operating cost of the gearbox are lowered.
[0041] The positive and progressive effects of this utility model are as follows:
[0042] By providing this support device, a first extension and a second extension are added. The first and second extensions are fixed by a first connector, and the horizontal displacement of the ends of the first and second elastic elements is limited by an extension limiting member. This prevents excessive horizontal displacement of the extensions and elastic elements during pressurization, thus avoiding ejection. The design of the first extension increases the projected size of the first elastic element that the torque arm can support, and the design of the second extension increases the projected size of the second elastic element that the torque arm can support. Compared with the prior art, this support device can use first and second elastic elements with larger cross-sections perpendicular to the clamping direction while keeping the size of the torque arm unchanged. This improves the torsional load-bearing capacity, vibration reduction, and noise reduction capabilities of the first and second elastic elements, avoiding frequent damage and replacement of spare parts. By providing this gearbox, losses in labor time, materials, and power generation are reduced, and the maintenance frequency and operating costs of the gearbox are lowered. Attached Figure Description
[0043] Figure 1 This is a three-dimensional structural diagram of a torque arm according to an embodiment of the present invention.
[0044] Figure 2 This is a three-dimensional structural diagram of a support device according to an embodiment of the present invention.
[0045] Figure 3 This is a step diagram illustrating the installation method of the support device according to an embodiment of the present invention.
[0046] Explanation of reference numerals in the attached figures:
[0047] Gearbox body 1
[0048] Torque arm 2
[0049] First connecting hole 21
[0050] Second connecting hole 22
[0051] Support device 3
[0052] First elastic element 311
[0053] Second elastic element 312
[0054] First extension component 321
[0055] Second extension 322
[0056] Support component 33
[0057] First connector 341
[0058] Second connector 342
[0059] 351 crossbeam
[0060] Base plate 352
[0061] Support column 353
[0062] Adjustment component 354
[0063] Frame limiting component 361
[0064] Extension limiting component 362
[0065] Capacity 37 Detailed Implementation
[0066] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.
[0067] like Figure 2 As shown, this embodiment provides a support device 3, which is used to elastically support the torque arm 2 of the gearbox, wherein the torque arm 2 is in Figure 2The relationship between torque arm 2 and gearbox body 1 is indicated by dashed lines as follows: Figure 1 As shown, the support device 3 includes a first elastic element 311 and a second elastic element 312 for clamping the torque arm 2. In this embodiment, the first elastic element 311 and the second elastic element 312 together provide elastic support to the upper and lower surfaces of the torque arm 2.
[0068] The support device 3 further includes a first extension 321 and a second extension 322. The first extension 321 is disposed on the side of the first elastic member 311 facing the second elastic member 312, and the second extension 322 is disposed on the side of the second elastic member 312 facing the first elastic member 311. (In this embodiment, the support device 3 has a receiving space 37 located between the first elastic member 311 and the second elastic member 312 for clamping the torque arm;) Figure 2 As shown, the torque arm 2 can be placed into the receiving space 37, at which time the first extension 321 is clamped between the torque arm 2 and the first elastic member 311, and the second extension 322 is clamped between the torque arm 2 and the second elastic member 312.
[0069] Along the clamping direction A (vertical direction in this embodiment), the orthographic projection size of the outer contour of the first extension 321 is greater than the orthographic projection size of the first elastic member 311 (and also greater than the size of the surface of the contacted torque arm 2), thus expanding the projection size of the first elastic member 311 that the torque arm 2 can bear; the orthographic projection size of the outer contour of the second extension 322 is greater than the orthographic projection size of the second elastic member 312 (and also greater than the size of the surface of the contacted torque arm 2), thus expanding the projection size of the second elastic member 312 that the torque arm 2 can bear.
[0070] The support device 3 also includes a first connector 341, which is used to fix the first extension 321 and the second extension 322 to prevent excessive horizontal displacement of the first extension 321 and the second extension 322 during the pressurization process, which could lead to the problem of popping out.
[0071] The support device 3 also includes an extension limiting member 362. A set of extension limiting members 362 are installed on the side of the first extension member 321 near the first elastic member 311 (in this embodiment, the upper surface of the first extension member 321) to limit the horizontal displacement of the end of the first elastic member 311 (in this embodiment, the lower end of the first elastic member 311), thus preventing excessive horizontal displacement of the first elastic member 311 during the pressurization process, which could lead to ejection.
[0072] Another set of extension limiting members 362 are installed on the side of the second extension member 322 near the second elastic member 312 (in this embodiment, the lower surface of the second extension member 322) to limit the horizontal displacement of the upper end of the second elastic member 312 (in this embodiment, the upper end of the second elastic member 312) to avoid excessive horizontal displacement of the second elastic member 312 during the pressurization process, which could lead to the problem of popping out.
[0073] Compared with existing technologies, this support device 3 can use a first elastic element 311 and a second elastic element 312 with a larger cross section perpendicular to the clamping direction A while keeping the size of the torque arm 2 unchanged. This improves the torsional load bearing capacity, vibration reduction and noise reduction capacity of the first elastic element 311 and the second elastic element 312, avoids frequent damage to the first elastic element 311 and the second elastic element 312 and frequent replacement of spare parts, and reduces losses in terms of working hours, materials and power generation.
[0074] The inner side of the support device 3 is defined as the side near the connection between the torque arm 2 and the main body 1 of the gearbox, and the outer side of the support device 3 is the side near the torque arm 2 away from the main body 1 of the gearbox.
[0075] In this embodiment, along direction B, i.e., the horizontal direction perpendicular to the inner to outer side of the support device 3, the length of the first extension 321 is greater than the length of the first elastic member 311. This means that at least one side of the first elastic member 311 along direction B is sufficiently clamped at the first extension 321. This ensures that the contact surface between the first elastic member 311 and the first extension 321 is completely confined within the length of the first extension 321. This design further improves the stability of the first elastic member 311, guarantees the supporting effect, and avoids the problem of the support device becoming unbalanced due to small-amplitude sliding of the first elastic member 311. Of course, in other embodiments, the dimensional relationship between the first extension member and the first elastic member can be set as needed.
[0076] In this embodiment, along direction B, the length of the second extension 322 is greater than the length of the second elastic member 312. This means that at least one side of the second elastic member 312 along direction B is sufficiently clamped at the second extension 322, ensuring that the contact surface between the second elastic member 312 and the second extension 322 is completely confined within the range of the second extension 322 along direction B. This design further improves the stability of the second elastic member 312, guarantees the supporting effect, and avoids the problem of imbalance in the support device caused by small-amplitude sliding of the second elastic member 312. Of course, in other embodiments, the dimensional relationship between the second extension 322 and the second elastic member can be set as needed.
[0077] In this embodiment, the support device 3 further includes a support member 33. The two ends of the support member 33 abut against the first extension member 321 and the second extension member 322 respectively, so that the support member 33 provides a supporting force for the first extension member 321 and the second extension member 322, avoiding deformation caused by the first extension member 321 and the second extension member 322 being suspended, and further improving the load-bearing capacity and service life of the support device 3.
[0078] In this embodiment, the end of the support member 33 abuts against the portion of the first extension member 321 and the second extension member 322 that protrudes from the torque arm 2. Without the support member 33, this portion is suspended above the torque arm 2, making it more prone to deformation and thus a structurally weak part of the support device 3.
[0079] In this embodiment, the support device 3 further includes a second connector 342, which passes through the support member 33 to fix the torque arm 2 and the support member 33 together, thereby reducing the possibility of relative sliding between the torque arm 2 and the support member 33 and further improving the stability of the support member 33.
[0080] In this embodiment, the support member 33 is detachably connected to the torque arm 2. The first extension member 321 and the second extension member 322 are detachably connected to the torque arm 2 via the support member 33. By connecting the first extension member 321 and the second extension member 322 via the support member 33 and then connecting them together to the torque arm 2, the stability of the first extension member 321 and the second extension member 322 is further improved, and the support effect of the support device 3 on the torque arm 2 is enhanced. The connection between the support member 33, the first extension member 321 / second extension member 322 and the torque arm 2 is achieved by bolts. The bolts are detachable, which facilitates the user to disassemble and assemble the various parts of the support device 3, and realizes the maintenance and adjustment of the support device 3.
[0081] Specifically, in this embodiment, the support member 33 covers the side of the torque arm 2. The support member 33 is a plate whose shape matches the end of the torque arm 2. The support member 33 and the torque arm 2 are connected by a second connector 342 (in this embodiment, a bolt is used, and the torque arm 2 also has a second connecting hole 22 corresponding to the second connector 342). In other embodiments, the shape and connection method of the support member 33 can also adopt other shapes and connection methods adapted to the gearbox operating environment.
[0082] Of course, in other embodiments, in a structural scheme in which the support member can be detachably connected to the torque arm, and the first extension member and the second extension member are respectively detachably connected to the torque arm through the support member, the support member may not be directly connected to the torque arm.
[0083] In this embodiment, the portion of the first extension 321 extending out of the torque arm 2 is located outside the support device, which can effectively utilize the space at the end of the torque arm 2 away from the main body 1 of the gearbox, avoiding the problem of limited area of the first extension 321 due to space constraints.
[0084] By setting the portion of the second extension 322 extending out of the torque arm 2 to be located outside the support device, the space at the end of the torque arm 2 away from the main body 1 of the gearbox can be effectively utilized, avoiding the problem of limited area of the second extension 322 due to space constraints.
[0085] In this embodiment, the first connector 341 passes through the first extension 321 to fix the torque arm 2 and the first extension 321 together, thereby reducing the possibility of relative sliding between the first extension 321 and the torque arm 2 and further improving the stability of the first extension 321.
[0086] In this embodiment, the first extension 321 is detachably positioned to the upper surface of the torque arm 2 via the first connector 341. The first connector 341 is detachably connected to the connection hole 21 on the torque arm 2, facilitating maintenance and adjustment of the support device 3 by the user. This further enhances the support effect of the support device 3 on the torque arm 2. Of course, in other embodiments, the first connector 341 may not be provided, and the first extension 321 may be fixed solely by the frictional force generated by the clamping force between the torque arm 2 and the first elastic member 311.
[0087] In this embodiment, the first connector 341 passes through the second extension 322 to fix the torque arm 2 and the second extension 322 together, thereby reducing the possibility of relative sliding between the second extension 322 and the torque arm 2 and further improving the stability of the second extension 322.
[0088] In this embodiment, the second extension 322 is detachably positioned to the lower surface of the torque arm 2 via the first connector 341, further improving the stability of the second extension 322. The connection between the first connector 341, the second extension 322, and the torque arm 2 is detachable, facilitating maintenance and adjustment of the support device 3 by the user. This further enhances the support effect of the support device 3 on the torque arm 2. Of course, in other embodiments, the first connector 341 may not be provided, and the first extension 321 may be fixed solely by the clamping force of the torque arm 2 and the first elastic member 311.
[0089] Of course, in other embodiments, in the structural scheme that enables the detachable positioning of the first and second extensions and the accommodating space, the first and second extensions may not be directly connected to the torque arm.
[0090] In this embodiment, the first connector 341 is a limiting pin, and the first extension 321, the second extension 322 and the torque arm 2 are all provided with pre-drilled holes corresponding to the first connector 341 (the pre-drilled hole on the torque arm 2 corresponding to the first extension 321 is the first connecting hole 21, and the other pre-drilled holes are not shown due to the viewing angle), so as to achieve detachable positioning with a relatively simple structure.
[0091] In this embodiment, the support device 3 further includes a support frame. The support device 3 surrounds the accommodating space 37, the first extension 321, the second extension 322, the first elastic member 311, and the second elastic member 312. The ends of the first elastic member 311 and the second elastic member 312 that are relatively far away from the accommodating space 37 are respectively abutted and positioned against the support frame to further position the ends of the elastic members away from the torque arm 2, limit the displacement of the elastic members, and further improve the stability of the support device 3.
[0092] In this embodiment, the support frame includes a crossbeam 351, a base plate 352, and multiple support columns 353. The support columns 353 are all arranged around the torsion arm 2, the first extension 321, the second extension 322, the first elastic member 311, and the second elastic member 312. The upper ends of the support columns 353 are all connected to the crossbeam 351, and the lower ends of the support columns 353 are all connected to the base plate 352. This allows the support columns 353, the crossbeam 351, and the base plate 352 to form a relatively stable three-dimensional support structure around the torsion arm 2, further improving the stability of the support device 3 and enhancing its impact resistance.
[0093] In this embodiment, the first elastic element 311 is a cylinder, which can be implemented by a helical spring or a cylindrical rubber block, etc. The lower surface of the crossbeam 351 is attached to the upper surface of the first elastic element 311. The part of the lower surface of the crossbeam 351 and the upper surface of the first elastic element 311 that are attached is a circular surface that matches the size of the first elastic element 311. This can ensure that the load applied by the first elastic element 311 to the crossbeam 351 is evenly distributed, reduce local stress concentration, and extend the service life of the elastic element and the crossbeam 351.
[0094] In this embodiment, the second elastic element 312 is a cylinder, and the upper surface of the base plate 352 is attached to the lower surface of the second elastic element 312. The part of the upper surface of the base plate 352 and the lower surface of the second elastic element 312 that are attached to each other is a circular surface that matches the size of the second elastic element 312. This can ensure that the load applied by the second elastic element 312 to the base plate 352 is evenly distributed, reduce local stress concentration, and extend the service life of the elastic element and the crossbeam 351.
[0095] In this embodiment, the first extension 321 is a rectangular plate, the diameter of the first elastic member 311 matches the width of the first extension 321, and the lower end of the first elastic member 311 is correspondingly provided with the end of the first extension 321 away from the main body 1 of the gearbox, so as to further reduce local stress concentration.
[0096] In this embodiment, the second extension 322 is a rectangular plate, the diameter of the second elastic member 312 is matched with the width of the second extension 322, and the lower end of the second elastic member 312 and the end of the second extension 322 away from the main body 1 of the gearbox are correspondingly arranged to further reduce local stress concentration.
[0097] In this embodiment, the support frame also includes an adjusting member 354, which connects the upper end of the support column 353 and the crossbeam 351, making the gap between the upper end of the support column 353 and the crossbeam 351 adjustable, thereby improving the adaptability of the support frame and meeting the installation requirements of elastic components of different sizes; the limiting member restricts the horizontal displacement of the elastic component, ensuring the stability and vibration reduction effect of the elastic component during operation.
[0098] In this embodiment, the support device 3 further includes a frame limiting member 361, which is installed on the lower surface of the crossbeam 351 and the upper surface of the base plate 352. The frame limiting member 361 limits the horizontal displacement of the upper end of the first elastic member 311 and the lower end of the second elastic member 312, preventing relative sliding between the upper end of the first elastic member 311 and the crossbeam 351, and between the lower end of the second elastic member 312 and the base plate 352, thereby further improving the stability of the support device 3. Of course, in other embodiments, other structures can be provided to limit the first elastic member 311 and the second elastic member 312.
[0099] In this embodiment, both the frame limiting member 361 and the extension limiting member 362 are bolts to facilitate disassembly and assembly; in other embodiments, the frame limiting member and the extension limiting member may be selected from other structures as needed.
[0100] like Figure 3 As shown, this embodiment also provides a method for installing the support device 3:
[0101] S1. Install a first extension 321, a second extension 322 and a support 33 on the torque arm 2;
[0102] Four extension limiting members 362 are respectively installed on the first extension member 321 and the second extension member 322. The first extension member 321 and the second extension member 322 are respectively fixed to the torque arm 2 through four first connecting members 341. The support member 33 is fixed to the torque arm 2 through four second connecting members 342.
[0103] S2. Add a support frame and arrange a crossbeam 351, a support column 353, a base plate 352 and an adjusting component 354 so that the crossbeam 351 is connected to one end of the support column 353 through the adjusting component 354, and the base plate 352 is connected to the other end of the support column 353.
[0104] Four frame limiting pieces 361 are installed on the crossbeam 351 and the base plate 352 respectively;
[0105] S3. Arrange the first elastic member 311 between the first extension member 321 and the crossbeam 351, and between the four extension limiting members 362 and the four frame limiting members 361.
[0106] The second elastic member 312 is arranged between the second extension member 322 and the base plate 352, and is located between the four extension limiting members 362 and the four frame limiting members 361.
[0107] S4: Pre-tightening adjustment component 354;
[0108] S5: Level the elastic support and tighten all adjusting parts 354;
[0109] If necessary, thin shims (not shown in the figure) are installed between the first extension 321 and the support 33, the second extension 322 and the support 33, and the support 33 and the torque arm 2.
[0110] This embodiment also provides a gearbox, which includes a torque arm 2 and the aforementioned support device 3. By providing this gearbox, losses in terms of working hours, materials, and power generation are reduced, and the maintenance frequency and operating costs of the gearbox are lowered.
[0111] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.
Claims
1. A support device for elastically supporting a torque arm of a gearbox, the support device comprising a first elastic element and a second elastic element for clamping the torque arm, characterized in that: The support device further includes a first extension member and a second extension member, wherein the first extension member is disposed on the side of the first elastic member facing the second elastic member, and the second extension member is disposed on the side of the second elastic member facing the first elastic member. Along the clamping direction, the orthographic projection size of the outer contour of the first extension is greater than the orthographic projection size of the first elastic member, and the orthographic projection size of the outer contour of the second extension is greater than the orthographic projection size of the second elastic member. The support device further includes a first connector, which is used to fix the first extension and the second extension; The support device further includes an extension limiting member, which is installed on the side of the first extension member close to the first elastic member to limit the horizontal displacement of the end of the first elastic member. The extension limiting member is also installed on the side of the second extension member close to the second elastic member to limit the horizontal displacement of the end of the second elastic member.
2. The support device of claim 1, wherein, Along a horizontal direction perpendicular to the inner to outer side of the support device, the length of the first extension is greater than the length of the first elastic member; and / or, Along a horizontal direction perpendicular to the inside to the outside of the support device, the length of the second extension is greater than the length of the second elastic member.
3. The support device of claim 1, wherein, The support device further includes a support member, the two ends of which are respectively connected to the outer ends of the first extension member and the second extension member facing the outside of the support device.
4. The support device of claim 3, wherein The support device further includes a second connector, which passes through the support.
5. Support device according to any one of claims 1-4, characterized in that The first connector passes through the first extension; and / or, The first connector passes through the second extension.
6. The support device of claim 1, wherein, The support device has a receiving space located between the first elastic member and the second elastic member, and is used to clamp the torque arm; The support device further includes a support frame surrounding the accommodating space, the first extension, the second extension, the first elastic member, and the second elastic member. The ends of the first elastic member and the second elastic member that are relatively far from the accommodating space are respectively positioned against the support frame.
7. The support device of claim 6, wherein The support frame includes a crossbeam, a base plate, and multiple support columns, all of which surround the accommodating space, the first extension, the second extension, the first elastic member, and the second elastic member. The upper ends of the support columns are all connected to the crossbeams, and the lower ends of the support columns are all connected to the base plate.
8. The support device of claim 7, wherein, The first elastic element is a cylinder, and the lower surface of the crossbeam is attached to the upper surface of the first elastic element. The portion of the lower surface of the crossbeam and the upper surface of the first elastic element that are attached is a circular surface that matches the size of the first elastic element; and / or, The second elastic element is a cylinder, and the upper surface of the base plate is attached to the lower surface of the second elastic element. The part of the upper surface of the base plate and the lower surface of the second elastic element that are attached to each other is a circular surface that matches the size of the second elastic element.
9. The support apparatus of claim 7, wherein The support frame also includes an adjusting member that connects the upper end of the support column and the crossbeam, making the gap between the upper end of the support column and the crossbeam adjustable.
10. A gearbox comprising a torsion arm, characterized in that The gearbox further includes the support device as described in any one of claims 1-9.