A genset central bridge support assembly
Patent Information
- Application Number
- CN202521644694.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-04
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-08-04
AI Technical Summary
[0003]然而，这种仅依靠单一橡胶连接上下安装板的结构存在明显缺陷：一方面，由于缺乏垂向压缩限位结构，在机组运行过程中，橡胶易因承受过大垂向载荷而发生过度压缩，不仅会大幅削弱隔振效果，还可能导致橡胶因长期超范围形变而加速老化损坏，缩短组件使用寿命；另一方面，单一橡胶的连接方式使得组件在长期使用后容易出现偏移现象，造成上下安装板相对位置偏差，进而影响对中央桥架的稳定支撑，给发电机组的安全运行带来潜在风险
1、本实用新型通过金属圆筒为橡胶体提供了刚性边界，当组件承受垂向载荷时，橡胶体中间伸出金属圆筒的部分可通过弹性形变发挥隔振作用，而金属圆筒则能限制橡胶体的垂向压缩幅度，避免其因过度压缩而削弱隔振效果或加速老化，解决了原有结构缺乏垂向压缩限位的问题；同时，橡胶体通过注胶硫化与两个金属圆筒形成紧密结合的整体，金属圆筒与橡胶体的协同作用能够约束上下安装板的相对位移，有效防止组件在长期使用中出现偏移，保证上下安装板相对位置的稳定性，以解决背景技术中的问题；
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Figure CN224733550U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of generator set central bridge support, and more specifically, it relates to a generator set central bridge support assembly. Background Technology
[0002] In the structural system of a generator set, the central bridge support assembly is a key component used to support the central bridge and achieve vibration isolation. Its performance directly affects the stable operation of the central bridge and the overall reliability of the generator set. Existing generator set central bridge support assemblies typically consist of an upper mounting plate, a lower mounting plate, and rubber between their opposing surfaces. The elasticity of the rubber provides support and vibration isolation for the central bridge.
[0003] However, this structure, which relies solely on a single rubber connection between the upper and lower mounting plates, has significant drawbacks: Firstly, due to the lack of a vertical compression limiting structure, the rubber is prone to over-compression under excessive vertical loads during unit operation. This not only significantly weakens the vibration isolation effect but may also lead to accelerated aging and damage of the rubber due to long-term excessive deformation, thus shortening the component's service life. Secondly, the single rubber connection method makes the components prone to misalignment after long-term use, causing relative positional deviations between the upper and lower mounting plates. This, in turn, affects the stable support of the central bridge frame, posing a potential risk to the safe operation of the generator unit.
[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a central bridge support assembly for generator sets. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a central bridge support component for generator sets.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a central bridge support assembly for a generator set, comprising an upper mounting plate and a lower mounting plate, and rubber located between the upper mounting plate and the lower mounting plate. Metal cylinders are provided on the opposite surfaces of the upper mounting plate and the lower mounting plate. Rubber is injected and vulcanized inside the two metal cylinders to form a rubber body located inside the two metal cylinders, with the middle part extending out of the metal cylinders.
[0007] Preferably, a straight-line maintaining component is also installed between the upper mounting plate and the lower mounting plate.
[0008] Preferably, the linear support component includes vertical guide rails mounted on both sides of the top of the lower mounting plate for sliding the slider, and the top of the slider is connected to the bottom of the upper mounting plate via a vertical rod.
[0009] Preferably, the upper mounting plate and the vertical rod, as well as the lower mounting plate and the vertical guide rail, are detachably connected.
[0010] Preferably, the upper mounting plate and the lower mounting plate have grooves on both sides of their opposite surfaces. The top end of the vertical rod and the bottom end of the vertical guide rail are fixedly connected to connecting blocks that can be inserted into the grooves. The inner surfaces of the grooves are fixedly connected to screws on both sides. The connecting blocks have through holes on both sides for the screws to pass through. Nuts are threaded onto the outer side walls of the screws.
[0011] Preferably, the inner wall of the metal cylinder has a plurality of axially extending protrusions evenly distributed, and the outer surface of the rubber body has a matching groove corresponding to the position of the protrusions.
[0012] Preferably, an elastic washer is provided between the nut and the connecting block, and the elastic washer is sleeved on the screw.
[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model provides a rigid boundary for the rubber body through a metal cylinder. When the component is subjected to a vertical load, the part of the rubber body extending out of the metal cylinder can play a vibration isolation role through elastic deformation, while the metal cylinder can limit the vertical compression amplitude of the rubber body, preventing it from weakening the vibration isolation effect or accelerating aging due to excessive compression, thus solving the problem of the lack of vertical compression limit in the original structure. At the same time, the rubber body forms a tightly integrated whole with the two metal cylinders through injection vulcanization. The synergistic effect of the metal cylinder and the rubber body can constrain the relative displacement of the upper and lower mounting plates, effectively preventing the component from shifting during long-term use and ensuring the stability of the relative position of the upper and lower mounting plates, thereby solving the problems in the background technology. 2. In this utility model, the axial protrusions on the inner wall of the metal cylinder and the matching grooves on the outer surface of the rubber body form a tight mechanical interlocking structure. On the one hand, the interlocking of the protrusions and the grooves greatly increases the contact area and friction between the metal cylinder and the rubber body, which can effectively limit the relative sliding of the two in the circumferential and axial directions, avoid loosening of the connection due to vibration or load changes, and enhance the overall structural stability of the component. On the other hand, this interlocking structure can make the stress more evenly distributed on the contact surface, reduce the excessive deformation of the rubber body caused by local stress concentration, and further slow down the aging rate of the rubber. 3. This utility model can further limit the relative offset of the upper and lower mounting plates through the linear maintaining component, avoiding horizontal misalignment between the two during long-term use, and ensuring that the upper and lower mounting plates always maintain the correct relative position. This not only enhances the stability of the central cable tray support, but also reduces the additional deformation of the rubber body caused by lateral forces. Together with the metal cylinder, it forms a double guarantee, further improving the overall reliability and service life of the support assembly. Attached Figure Description
[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A magnified view of the local structure; Figure 3 This utility model Figure 1 Another perspective on the specific structure; Figure 4 This utility model Figure 3 Enlarged view of the local structure of B; Figure 5 This is a schematic diagram of the specific structure of this utility model without the linear support component installed; Figure 6 This is a schematic diagram of the connection structure of the linear support component in this utility model.
[0015] In the diagram: 1. Upper mounting plate; 2. Lower mounting plate; 3. Metal cylinder; 301. Raised rib; 4. Rubber body; 401. Slot; 5. Linear support component; 501. Vertical guide rail; 502. Slider; 503. Vertical rod; 6. Groove; 7. Connecting block; 701. Through hole; 8. Screw; 9. Nut. Detailed Implementation
[0016] like Figure 1-6 As shown, this utility model provides a central bridge support assembly for a generator set, including an upper mounting plate 1 and a lower mounting plate 2, and a rubber located between the upper mounting plate 1 and the lower mounting plate 2. Metal cylinders 3 are provided on the opposite surfaces of the upper mounting plate 1 and the lower mounting plate 2. Rubber is injected and vulcanized inside the two metal cylinders 3 to form a rubber body 4 located inside the two metal cylinders 3, with the middle part extending out of the metal cylinders 3.
[0017] During operation, the upper mounting plate 1 and the lower mounting plate 2 are connected and supported by a metal cylinder 3 located on their opposite sides and a rubber body 4 inside. The metal cylinder 3 provides a rigid boundary for the rubber body 4. When the component is subjected to vertical load, the part of the rubber body 4 extending out of the metal cylinder 3 can play a vibration isolation role through elastic deformation. The metal cylinder 3 can limit the vertical compression amplitude of the rubber body 4, preventing it from weakening the vibration isolation effect or accelerating aging due to excessive compression, thus solving the problem of the original structure lacking vertical compression limit. At the same time, the rubber body 4 forms a tightly integrated whole with the two metal cylinders 3 through injection vulcanization. The synergistic effect of the metal cylinder 3 and the rubber body 4 can constrain the relative displacement of the upper and lower mounting plates 2 (most of the rubber body 4 is located in the metal cylinder 3 and is restricted by the metal cylinder 3), effectively preventing the component from shifting during long-term use, ensuring the stability of the relative position of the upper and lower mounting plates, thereby achieving reliable support for the central cable tray and taking into account both vibration isolation function and structural stability.
[0018] The inner wall of the metal cylinder 3 has several axially extending protrusions 301 evenly distributed. The outer surface of the rubber body 4 has corresponding grooves 401 at the positions of the protrusions 301. The axial protrusions 301 on the inner wall of the metal cylinder 3 and the corresponding grooves 401 on the outer surface of the rubber body 4 form a tight mechanical interlocking structure. On the one hand, the interlocking of the protrusions 301 and the grooves 401 greatly increases the contact area and friction between the metal cylinder 3 and the rubber body 4, which can effectively limit the relative sliding between the two in the circumferential and axial directions, avoid loosening of the connection due to vibration or load changes, and enhance the overall structural stability of the component. On the other hand, this interlocking structure can make the stress more evenly distributed on the contact surface, reduce the excessive deformation of the rubber body 4 caused by local stress concentration, and further slow down the aging rate of the rubber.
[0019] Furthermore, a linear support component 5 is installed between the upper mounting plate 1 and the lower mounting plate 2. The linear support component 5 includes vertical guide rails 501 installed on both sides of the top of the lower mounting plate 2 for sliding the slider 502. The top of the slider 502 is connected to the bottom of the upper mounting plate 1 through a vertical rod 503. The vertical guide rails 501 on both sides of the top of the lower mounting plate 2 provide a precise vertical guide path for the slider 502. When the upper and lower mounting plates move vertically relative to each other due to vibration or load, the slider 502 can slide stably along the vertical guide rails 501. At the same time, the vertical rod 503 constrains the movement of the upper mounting plate 1 in the vertical direction. This structure can further limit the relative offset of the upper mounting plate 1 and the lower mounting plate 2, avoid horizontal misalignment between the two during long-term use, and ensure that the upper and lower mounting plates always maintain the correct relative position. This not only enhances the stability of the central cable tray support, but also reduces the additional deformation of the rubber body 4 caused by lateral force. Together with the metal cylinder 3, it forms a double guarantee, further improving the overall reliability and service life of the support assembly.
[0020] Furthermore, in this utility model, the mounting plate and the vertical rod 503, as well as the lower mounting plate 2 and the vertical guide rail 501, are detachably connected. During use, if the vertical rod 503, the vertical guide rail 501, or the slider 502 is worn or damaged, the damaged parts can be disassembled and replaced individually without replacing the entire support assembly, significantly reducing maintenance costs and downtime. At the same time, the use of the linear support component 5 can be selected based on the actual support conditions of the generator set's central bridge. When the support environment of the generator set's central bridge is stable and the impact of vibration and displacement is small, not installing this component can reduce material input and installation steps, lower costs, and make the component structure simpler, reducing failure points and facilitating maintenance. However, in scenarios with higher support requirements and the need to strengthen stability and displacement constraints, installing this component can further limit the relative displacement of the upper and lower mounting plates 2 through the cooperation of its vertical guide rail 501 and slider 502, enhancing support stability, preventing offset, and ensuring reliable operation of the component under complex working conditions.
[0021] The following is the specific structure of the above-mentioned detachable structure: grooves 6 are provided on both sides of the opposite surfaces of the upper mounting plate 1 and the lower mounting plate 2. The top end of the vertical rod 503 and the bottom end of the vertical guide rail 501 are fixedly connected to connecting blocks 7 that can be inserted into the grooves 6. Screws 8 are fixedly connected on both sides of the inner surface of the grooves 6. Through holes 701 for the screws 8 to pass through are provided on both sides of the surface of the connecting blocks 7. Nuts 9 are threadedly connected to the outer side wall of the screws 8.
[0022] During installation, first align the connecting block 7 at the top of the vertical rod 503 with the groove 6 on the upper mounting plate 1, and align the connecting block 7 at the bottom of the vertical guide rail 501 with the groove 6 on the lower mounting plate 2. Then, pull the slider 502 upwards relative to the vertical guide rail 501 (the overall length of the straight-line maintenance component 5 increases), so that both the upper and lower connecting blocks 7 are inserted into the groove 6. Insertion ensures that the screws 8 on both sides of the inner surface of the groove 6 pass through the through holes 701 on both sides of the connecting block 7. Then, tighten the nut 9 on the outer wall of the screw 8, connecting the nut 9 to the screw 8 via the thread. The connecting block 7 is fixed in the groove 6 to complete the installation of the straight line maintaining component 5. When disassembling, first loosen and remove the nut 9 on the screw 8, then pull the slider 502 down along the vertical guide rail 501 (the overall length of the straight line maintaining component 5 becomes shorter). Remove the connecting block 7 at the top of the vertical rod 503 from the groove 6 on the upper mounting plate 1 and the connecting block 7 at the bottom of the vertical guide rail 501 from the groove 6 on the lower mounting plate 2. The disassembly of the straight line maintaining component 5 can be completed. The cooperation between the connecting block 7 and the groove 6 can ensure accurate installation and positioning.
[0023] Furthermore, an elastic washer is provided between the nut 9 and the connecting block 7. The elastic washer is fitted onto the screw 8. After being compressed, the elastic washer generates continuous elastic tension, which not only enhances the friction between the nut 9 and the connecting block 7, preventing the nut 9 from loosening on its own due to vibration during generator operation, but also compensates for minor gaps in the connection process and wear caused by long-term use, ensuring that the connection between the screw 8 and the nut 9 always remains tight, effectively preventing the connection of the linear maintaining component 5 from loosening under long-term vibration environment.
[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A central bridge support assembly for a generator set, comprising an upper mounting plate (1) and a lower mounting plate (2), and rubber located between the upper mounting plate (1) and the lower mounting plate (2), characterized in that: Metal cylinders (3) are provided on the opposite surfaces of the upper mounting plate (1) and the lower mounting plate (2). Rubber is injected into the inside of the two metal cylinders (3) and vulcanized to form a rubber body (4) located inside the two metal cylinders (3) with the middle part extending out of the metal cylinders (3).
2. The generator set central bridge support assembly according to claim 1, characterized in that: A linear support component (5) is also installed between the upper mounting plate (1) and the lower mounting plate (2).
3. The generator set central bridge support assembly according to claim 2, characterized in that: The linear support component (5) includes vertical guide rails (501) installed on both sides of the top of the lower mounting plate (2) for sliding of the slider (502). The top of the slider (502) is connected to the bottom of the upper mounting plate (1) through a vertical rod (503).
4. The generator set central bridge support assembly according to claim 3, characterized in that: The upper mounting plate (1) and the vertical rod (503) are detachably connected, as are the lower mounting plate (2) and the vertical guide rail (501).
5. The generator set central bridge support assembly according to claim 4, characterized in that: The upper mounting plate (1) and the lower mounting plate (2) have grooves (6) on both sides of their opposite surfaces. The top end of the vertical rod (503) and the bottom end of the vertical guide rail (501) are fixedly connected to connecting blocks (7) that can be inserted into the grooves (6). The inner surfaces of the grooves (6) are fixedly connected to screws (8). The connecting blocks (7) have through holes (701) on both sides of their surfaces for the screws (8) to pass through. Nuts (9) are threaded onto the outer side walls of the screws (8).
6. The generator set central bridge support assembly according to claim 5, characterized in that: The inner wall of the metal cylinder (3) has a number of axially extending protrusions (301) evenly distributed, and the outer surface of the rubber body (4) has a matching groove (401) corresponding to the position of the protrusions (301).
7. A generator set central bridge support assembly according to claim 5, characterized in that: An elastic washer is provided between the nut (9) and the connecting block (7), and the elastic washer is sleeved on the screw (8).