Anti-deformation liquid injection type gearbox elastic supporting assembly

Abstract

The utility model discloses an anti-deformation liquid injection type gear box elastic supporting assembly, and relates to the field of gear box elastic supporting assemblies, the technical scheme is that the anti-deformation liquid injection type gear box elastic supporting assembly comprises a rubber elastic body, the top of the rubber elastic body extends downwards to form a groove, and the depth of the groove accounts for 1 / 4-1 / 3 of the height of the rubber elastic body. The rubber elastic body is arranged in the groove to reduce the volume of rubber on the rubber elastic body and form a flexible bearing area capable of elastically deforming, an expanded cavity is formed in the rubber elastic body and is of a circular-truncated-cone-shaped transition structure with the narrow upper portion and the wide lower portion, and the effect is that the deformation degree of the groove can be dynamically adjusted, so that the overall rigidity of the elastic supporting assembly is changed, and the service life of the elastic supporting assembly is prolonged. In addition, vibration can be buffered through the flexibility of the rubber material, and excessive deformation of the rubber is reduced through liquid pressure supporting.

Description

Technical Field

[0001] This utility model relates to the field of gearbox elastic support components, and more specifically, it relates to a deformation-resistant liquid-filled gearbox elastic support component. Background Technology

[0002] In the transmission systems of equipment such as ships and wind power plants, gearboxes are critical components that generate significant vibrations and impacts during operation. Therefore, elastic support components are typically required to reduce vibration transmission and improve equipment operational stability. Traditional gearbox elastic support components mostly employ rubber elastomer structures, utilizing the excellent elastic buffering properties of rubber to absorb vibration energy.

[0003] However, existing rubber elastomers often require an increased amount of rubber material in their design to ensure sufficient load-bearing capacity and cushioning effect. Excessive rubber material can cause over-deformation of the elastomer under long-term alternating loads, leading to a decrease in the stiffness and stability of the elastic support assembly and an inability to provide continuous and effective support and protection for the gearbox. Furthermore, deformation of the rubber elastomer can reduce equipment installation accuracy, accelerate wear on internal gearbox components, and shorten the overall service life of the equipment. In addition, due to the inherent properties of rubber, it is difficult to dynamically adjust the stiffness of the elastic support assembly to adapt to different operating conditions through simple structural modifications, greatly limiting the application range and performance improvement of gearbox elastic support assemblies.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a deformation-resistant fluid-injection type elastic support assembly for gearboxes. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a deformation-resistant liquid-filled gearbox elastic support component.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a deformation-resistant, liquid-injected gearbox elastic support assembly, comprising a rubber elastomer. The top of the rubber elastomer extends downward to form a groove, the depth of which is 1 / 4 to 1 / 3 of the height of the rubber elastomer, in order to reduce the rubber volume on the rubber elastomer and form a flexible load-bearing area that can be elastically deformed. An enlarged cavity is provided inside the rubber elastomer. The enlarged cavity has a frustum-shaped transition structure that is narrow at the top and wide at the bottom. Its bottom end is connected to an external hydraulic device through a hydraulic pipeline. Liquid is injected into the enlarged cavity through the hydraulic device, and the liquid pressure can be transmitted upward to evenly support the rubber material in the groove.

[0007] Preferably, a plurality of annular steel plates arranged in a vertical array are embedded and fixed on the outer side wall of the rubber elastomer, and the outer diameter of each annular steel plate is adapted to the outer contour of the rubber elastomer.

[0008] Preferably, the bottom end of the rubber elastomer is detachably connected to a circular base plate by bolts, and the circular base plate has an injection port communicating with the enlarged cavity.

[0009] Preferably, a dust plug with a sealing ring is installed inside the injection port.

[0010] Preferably, a baffle plate is provided inside the enlarged cavity. The baffle plate has a semi-circular plate-like structure with a central guide hole to buffer the flow rate of the buffer fluid.

[0011] Preferably, the groove has a W-shaped cross-section, comprising two downwardly recessed arc segments and a raised transition segment in the middle.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The groove at the top of the rubber elastomer of this utility model has an inward concave structure with a depth of 1 / 4 to 1 / 3 of its height, which reduces the volume of rubber material in this area and forms a flexible load-bearing area that can be elastically deformed. This reduces the risk of excessive deformation caused by excessive material in traditional rubber elastomers. The bottom of the enlarged cavity, which is shaped like a frustum and narrow at the top and wide at the bottom, is connected to an external hydraulic device through a hydraulic pipeline. When the hydraulic device injects liquid into the enlarged cavity, the liquid pressure is uniformly transmitted upward along the frustum-shaped cavity, generating an upward supporting force on the rubber material in the groove, supporting the groove and causing it to undergo elastic deformation. At this time, the liquid pressure and the elastic force of the rubber elastomer together constitute the supporting force on the gearbox. By adjusting the amount and pressure of the liquid injected by the hydraulic device, the degree of deformation of the groove can be dynamically adjusted, thereby changing the overall stiffness of the elastic support component. This solves the problem in the background technology that excessive rubber material will cause the elastomer to undergo excessive deformation under long-term alternating loads and that the stiffness of the elastic support component cannot be dynamically adjusted to adapt to different working conditions.

[0014] 2. The arc segment of the W-shaped groove in this utility model enables the rubber elastomer to form a flexible load-bearing area, retaining the elastic buffering characteristics of the rubber material and effectively absorbing vibration and impact during equipment operation. When the external hydraulic device injects liquid into the enlarged cavity and reaches a certain pressure, the liquid pressure is transmitted upward, pushing the arc segment and the raised transition segment of the W-shaped groove to be uniformly lifted as a whole, so that the originally concave W-shaped structure is transformed into a planar contact state that fits against the bottom of the upper frame of the gearbox. This surface contact design can greatly increase the contact area between the support structure and the gearbox and evenly distribute the load.

[0015] 3. The buffering effect of the turbulence plate of this utility model can also reduce the turbulence of the liquid in the cavity, reduce the vibration and noise caused by unstable liquid flow, extend the service life of seals and pipelines in the hydraulic system, and further improve the operational reliability and stability of the liquid injection type gearbox elastic support component under complex working conditions. Attached Figure Description

[0016] 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:

[0017] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Fig. 2 This is a schematic diagram of the cross-sectional structure of the present invention.

[0019] In the diagram: 1. Rubber elastomer; 2. Groove; 3. Enlarged cavity; 4. Injection port; 5. Dustproof plug; 6. Baffle plate; 7. Circular base; 8. Annular steel plate. Detailed Implementation

[0020] like Figs. 1-2 As shown, this utility model provides a deformation-resistant, liquid-injected gearbox elastic support assembly, including a rubber elastomer 1. The top of the rubber elastomer 1 extends downward to form a groove 2. The depth of the groove 2 is 1 / 4 to 1 / 3 of the height of the rubber elastomer 1, so as to reduce the rubber volume on the rubber elastomer 1 and form a flexible load-bearing area that can be elastically deformed. An enlarged cavity 3 is provided inside the rubber elastomer 1. The enlarged cavity 3 has a frustum-shaped transition structure that is narrow at the top and wide at the bottom. Its bottom end is connected to an external hydraulic device through a hydraulic pipeline. Liquid is injected into the enlarged cavity 3 through the hydraulic device. The liquid pressure can be transmitted upward and evenly support the rubber material in the groove 2. The bottom end of the rubber elastomer 1 is detachably connected to a circular base plate 7 by bolts, and the circular base plate 7 has a liquid injection port 4 that communicates with the enlarged cavity 3.

[0021] When this utility model's liquid-injection type gearbox elastic support assembly is in operation, the groove 2 at the top of the rubber elastomer 1, with a depth occupying 1 / 4 to 1 / 3 of its height, reduces the volume of rubber material in this area, forming a flexible load-bearing area that can elastically deform, thus reducing the risk of excessive deformation caused by excessive material in traditional rubber elastomer 1. The bottom end of the enlarged cavity 3, which is shaped like a frustum and narrow at the top and wide at the bottom, is connected to an external hydraulic device through a hydraulic pipeline. When the hydraulic device injects liquid into the enlarged cavity 3 (through the injection port 4), the liquid pressure is evenly transmitted upward along the frustum-shaped cavity, generating an upward supporting force on the rubber material in the groove 2, supporting the groove 2 and causing it to undergo elastic deformation (the enlarged cavity ensures that sufficient liquid can be injected to support the groove 2). At this point, the liquid pressure and the elastic force of the rubber elastomer 1 together constitute the supporting force on the gearbox. By adjusting the amount and pressure of the liquid injected by the hydraulic device, the deformation degree of the groove 2 can be dynamically adjusted, thereby changing the overall stiffness of the elastic support component. This not only utilizes the flexibility of the rubber material to buffer vibration, but also reduces the excessive deformation of the rubber itself through liquid pressure support. This effectively solves the problems of unstable stiffness and excessive deformation caused by excessive material in traditional rubber elastomer 1, and achieves efficient buffering of gearbox vibration and flexible adjustment of support stiffness.

[0022] Furthermore, a dust plug 5 with a sealing ring is installed inside the injection port 4. On the one hand, the dust plug 5 can effectively prevent external dust, particles, and other impurities from entering the injection port 4, avoiding contaminants from clogging the hydraulic pipeline or wearing down the sealing components. Especially in the complex operating environment of equipment such as ships and wind power plants, it can significantly reduce hydraulic system failures caused by impurities and ensure smooth liquid transmission. On the other hand, the sealing ring forms a flexible sealing interface between the dust plug 5 and the injection port 4. Relying on elastic deformation to compensate for the connection gap, even under vibration or impact conditions, it can reliably prevent external moisture and corrosive gases from entering the enlarged cavity 3, while preventing internal liquid leakage and ensuring stable pressure inside the cavity. This maintains the stiffness adjustment accuracy and dynamic response performance of the elastic support component. The cross-section of the groove 2 is W-shaped, including two downward-concave arc segments and a raised transition segment in the middle. This unique geometric shape achieves efficient load transfer and optimized contact performance: before filling, W The arc segment of the W-shaped groove 2 creates a flexible load-bearing area for the rubber elastomer 1, preserving the elastic buffering properties of the rubber material and effectively absorbing vibrations and impacts during equipment operation. When an external hydraulic device injects liquid into the enlarged cavity 3 and reaches a certain pressure, the liquid pressure is transmitted upwards, pushing the arc segment and the raised transition segment of the W-shaped groove 2 to rise evenly, transforming the originally recessed W-shaped structure into a planar contact state that fits against the bottom of the gearbox upper frame. This surface contact design significantly increases the contact area between the support structure and the gearbox, evenly distributing the load and avoiding the localized stress concentration problems caused by traditional point or line contact, thereby improving the load-bearing capacity and stability of the elastic support assembly.

[0023] Furthermore, this invention embeds and fixes multiple annular steel plates 8 arranged in a vertical array on the outer wall of the rubber elastomer 1. The outer diameter of each annular steel plate 8 is adapted to the outer contour of the rubber elastomer 1. As a rigid reinforcement, the annular steel plates 8, arranged in a vertical array, can limit the excessive radial expansion of the rubber material through the annular constraint of the steel plates when the rubber elastomer 1 is under load. This avoids the stiffness reduction and stability decrease caused by excessive lateral deformation under alternating loads in traditional pure rubber structures. A baffle 6 is provided in the enlarged cavity 3. The baffle 6 is centered. The semi-circular plate structure with a central guide hole effectively alters the liquid flow path, causing the injected liquid to disperse in all directions after impacting the baffle plate 6. The curved surface of the plate transforms the concentrated liquid impact force into dispersed forces in multiple directions, thereby reducing the liquid velocity and preventing excessive instantaneous pressure impact on the rubber elastomer 1 caused by high-speed liquid. The central guide hole, while buffering the flow velocity, ensures that the liquid can continuously and stably transmit pressure upwards, maintaining uniform deformation of the rubber material in the groove 2 and ensuring the smooth adjustment of the elastic support component's stiffness. Furthermore, the buffering effect of the baffle plate 6 reduces turbulence within the cavity, lowering vibrations and noise caused by unstable liquid flow. It also extends the service life of seals and pipelines in the hydraulic system, further improving the operational reliability and stability of the liquid-filled gearbox elastic support component under complex operating conditions.

[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 deformation-proof flexible support assembly for a gear case with liquid injection, comprising a rubber elastomer (1), characterized in that: The top of the rubber elastic body (1) extends downward to form a groove (2), the depth of the groove (2) accounts for 1 / 4-1 / 3 of the height of the rubber elastic body (1), so as to reduce the rubber volume on the rubber elastic body (1) and form a flexible bearing area which can be elastically deformed, an enlarged cavity (3) is arranged in the rubber elastic body (1), the enlarged cavity (3) is in the form of a circular truncated cone with a narrow upper part and a wide lower part, the bottom end of the enlarged cavity (3) is communicated with an external hydraulic device through a hydraulic pipeline, liquid is injected into the enlarged cavity (3) through the hydraulic device, the liquid pressure can be transmitted upward and uniformly support the rubber material at the groove (2) part.

2. A deformation-proof liquid injection type gear case elastic support assembly according to claim 1, characterized in that: A plurality of annular steel plates (8) are embeddedly fixed on the outer side wall of the rubber elastic body (1) and arranged in vertical array, the outer diameter of each annular steel plate (8) is matched with the outer contour of the rubber elastic body (1).

3. The anti-deformation liquid-filled gear case elastic support assembly according to claim 1, characterized in that: A circular bottom disc (7) is detachably connected to the bottom end of the rubber elastic body (1) through bolts, and a liquid injection port (4) which is communicated with the enlarged cavity (3) is arranged on the circular bottom disc (7).

4. A deflection resistant fluid-filled gearbox elastic support assembly according to claim 3, wherein: A dustproof plug (5) with a sealing ring is mounted in the liquid injection port (4).

5. The anti-deformation liquid-filled gear case elastic support assembly according to claim 1, characterized in that: A spoiler plate (6) is arranged in the enlarged cavity (3), the spoiler plate (6) is in the form of a semicircular plate with a center flow guide hole, so as to buffer the flow rate of the liquid.

6. A strain relief liquid filled gear case elastomeric support assembly as set forth in Claim 1, wherein: The cross section of the groove (2) is in the form of W, including two downwardly concave circular arc segments and a middle convex transition segment.

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