Deformation-resistant, fluid-filled and elastic support component for gearbox housings

Abstract

A deformation-resistant, fluid-filled, and elastic support component for gearbox housings, comprising an elastic rubber body (1), wherein a downward-pointing groove (2) is provided on the upper side of the elastic rubber body (1), the depth of the groove (2) being 1 / 4 to 1 / 3 of the height of the elastic rubber body (1) in order to reduce the rubber volume on the elastic rubber body (1) and to form a flexible, elastically deformable bearing area, and wherein an expanded cavity (3) is provided within the elastic rubber body (1), wherein this expanded cavity (3) has a conical transition structure with a narrower upper and wider lower region, and the lower end of which is connected via a hydraulic line to an external hydraulic device in order to fill fluid into the expanded cavity (3) through the hydraulic device, whereby the fluid pressure can be transmitted upwards.to raise the rubber material evenly in the area of ​​the groove (2).

Description

[0001] The present invention relates to the technical field of elastic support components for gearbox housings, in particular a deformation-resistant, fluid-filled and elastic support component for gearbox housings.

[0002] In the drive systems of systems such as ships or wind turbines, the gearbox housing is a key component responsible for generating significant vibrations and shocks during operation. Therefore, elastic support components are needed to reduce vibration transmission and increase the operational stability of the system. Conventional elastic support components for gearbox housings often employ a structure made of an elastic rubber body to absorb vibration energy through the good elastic damping properties of the rubber material.

[0003] However, the design of conventional elastic rubber bodies typically requires an increased amount of rubber material to ensure sufficient load-bearing capacity and damping effect. Excessive use of the rubber material, however, can lead to excessive deformation of the elastic rubber body under long-term exposure to fluctuating loads. This results in a decrease in the stiffness and stability of the elastic support component, rendering it unable to provide effective, long-term protection for the gearbox housing. Simultaneously, the deformation of the elastic rubber body can compromise the assembly accuracy of the system, accelerate wear on the internal components of the gearbox housing, and consequently shorten the overall service life of the system.Furthermore, due to the properties of the rubber material, it is difficult to dynamically adjust the stiffness of the elastic support component through simple structural changes to meet different operating requirements. This significantly limits the application range and performance improvement of elastic support components for gearbox housings.

[0004] To solve the aforementioned technical problems, this invention therefore proposes a deformation-resistant, fluid-filled and elastic support component for gearbox housings.

[0005] The object of the present invention is to provide, in view of the shortcomings of the prior art, a deformation-resistant, fluid-filled and elastic support component for gearbox housings.

[0006] To achieve the above objective, this utility model application offers the following technical solution: a deformation-resistant, fluid-filled, and elastic support component for gearbox housings, comprising an elastic rubber body, wherein a downward-pointing groove is provided on the top of the elastic rubber body, the depth of the groove being 1 / 4 to 1 / 3 of the height of the elastic rubber body in order to reduce the rubber volume on the elastic rubber body and to form a flexible, elastically deformable bearing area, and wherein an expanded cavity is provided within the elastic rubber body, this expanded cavity having a conical transition structure with a narrower upper and wider lower region, and the lower end of which is connected via a hydraulic line to an external hydraulic device in order to fill fluid into the expanded cavity through the hydraulic device.where the fluid pressure can be transferred upwards to lift the rubber material evenly in the area of ​​the groove.

[0007] Preferably, several ring-shaped steel plates are embedded and fixed in the lateral outer wall of the elastic rubber body, distributed in a vertical arrangement, the outer diameter of each ring-shaped steel plate being adapted to the outer outline of the elastic rubber body.

[0008] Preferably, the lower end of the elastic rubber body is detachably connected to a round base plate via bolts, wherein a filling opening is provided in the round base plate which is connected to the enlarged cavity.

[0009] Preferably, a dustproof sealing plug with a sealing ring is fitted in the filling opening.

[0010] Preferably, a vortex plate is arranged in the enlarged cavity, wherein the vortex plate has a semi-circular plate-shaped structure with a central flow opening to buffer the flow velocity of the liquid.

[0011] Preferably, the groove has a W-shaped cross-section and comprises two downwardly curved circular arc sections and an intermediate, upwardly curved transition section.

[0012] Compared to the prior art, this invention has the following advantageous effects: In the invention, the groove on the upper surface of the elastic rubber body, with a depth of 1 / 4 to 1 / 3 of the height of the elastic rubber body and forming an inwardly curved structure, reduces the volume of the rubber material in this area. This creates an elastically deformable, flexible bearing area and reduces the risk of excessive deformation caused by too much rubber material in conventional elastic rubber bodies. The enlarged cavity inside, which has a conical shape with a narrower upper and wider lower section, is connected at its lower end to an external hydraulic device via a hydraulic line. When the hydraulic device injects fluid into the enlarged cavity, the fluid pressure is transmitted uniformly upwards through the conical, enlarged cavity.This compressive force exerts an upward supporting effect on the rubber material in the groove area, causing the groove to be lifted and elastically deformed. Here, the fluid pressure and the elastic force of the rubber body together provide the support force for the gearbox housing. By regulating the injected fluid quantity and pressure via the hydraulic device, the degree of deformation of the groove can be dynamically adjusted, which in turn changes the overall stiffness of the elastic support component. This solves the problems mentioned in the description of the prior art, namely that an excess of rubber material leads to excessive deformation of the elastic body under long-term fluctuating loads, and that the stiffness of the elastic support component cannot be dynamically adapted to different operating requirements.

[0013] The circular arc segments of the W-shaped groove in this invention form a flexible bearing area within the elastic rubber body, which retains the elastic damping properties of the rubber material and thus effectively absorbs vibrations and shocks during system operation. When the external hydraulic device injects fluid into the expanded cavity and a certain pressure is reached, the fluid pressure is transmitted upwards, uniformly pushing the circular arc segments and the transition section of the W-shaped groove upwards as a whole. This transforms the initially indented W-shape into a planar contact state that rests against the underside of the upper frame of the gearbox housing. This surface contact design can significantly increase the contact area between the support structure and the gearbox housing and distribute the load evenly.

[0014] The vortex plate in this invention also dampens the fluid flow, which reduces turbulence in the cavity and minimizes vibrations and noise caused by unsteady flow. At the same time, it extends the service life of the seals and lines in the hydraulic system. This further increases the operational reliability and stability of the fluid-filled elastic support component for the gearbox housing under complex operating conditions. Fig. Figure 1 shows a schematic representation of the overall structure of the present invention. Fig. Figure 2 shows a schematic cross-sectional structure of the present invention.

[0015] As in Fig. 1 to Fig.As shown in Figure 2, the present invention provides a deformation-resistant, fluid-filled, and elastic support component for gearbox housings, comprising an elastic rubber body 1, wherein a downwardly extending groove 2 is provided on the upper side of the elastic rubber body 1, the depth of the groove 2 being 1 / 4 to 1 / 3 of the height of the elastic rubber body 1 in order to reduce the rubber volume on the elastic rubber body 1 and to form a flexible, elastically deformable bearing area, and wherein an enlarged cavity 3 is provided within the elastic rubber body 1, wherein this enlarged cavity 3 has a conical transition structure with a narrower upper and a wider lower region, and the lower end of which is connected via a hydraulic line to an external hydraulic device in order to fill fluid into the enlarged cavity 3 by means of the hydraulic device.wherein the fluid pressure can be transmitted upwards to raise the rubber material uniformly in the area of ​​the groove 2, and a round base plate 7 is detachably attached to the lower end of the elastic rubber body 1 with screws, wherein a filling opening 4 is provided in the round base plate 7 which is connected to the enlarged cavity 3.

[0016] In the operation of the fluid-filled elastic support component for gearbox housings according to the invention, the groove 2 on the upper side of the elastic rubber body 1, the depth of which is 1 / 4 to 1 / 3 of the height of the elastic rubber body 1 and which forms an inwardly convex structure, reduces the volume of rubber material in this area. This creates an elastically deformable, flexible bearing area and reduces the risk of excessive deformation of the traditional elastic rubber body 1 caused by too much rubber material. The enlarged cavity 3 inside, which has a conical shape with a narrower upper and wider lower region, is connected at its lower end to an external hydraulic device via a hydraulic line. When the hydraulic device injects fluid into the enlarged cavity 3 (through the filling opening 4), the fluid pressure is transmitted uniformly upwards through the conical enlarged cavity.This generates an upward supporting force on the rubber material in the area of ​​groove 2, which lifts groove 2 and causes elastic deformation (the enlarged cavity ensures that a sufficient quantity of fluid can be injected to lift groove 2). Here, the fluid pressure and the elastic force of the elastic rubber body 1 together constitute the supporting force for the gearbox housing. By regulating the injected fluid quantity and pressure via the hydraulic device, the degree of deformation of groove 2 can be dynamically adjusted, which in turn changes the overall stiffness of the elastic support component. In this way, vibrations are dampened by the flexibility of the rubber material, and excessive deformation of the rubber due to the fluid support pressure is reduced.This effectively solves the problems of conventional elastic rubber bodies 1 - insufficient stiffness stability and excessive deformation due to too much rubber material - thereby achieving efficient damping of gearbox housing vibrations and flexible control of support stiffness.

[0017] Furthermore, a dustproof sealing plug 5 with a sealing ring is installed in the filling opening 4. On the one hand, the dustproof sealing plug 5 effectively blocks the ingress of foreign bodies such as dust and particles from the environment into the filling opening 4, thus preventing clogging of the hydraulic line or wear of the sealing components due to contamination. Particularly in the complex operating environments of systems such as ships or wind turbines, this can significantly reduce the number of hydraulic system failures caused by the ingress of contaminants and thus maintain fluid flow; on the other hand, the sealing ring between the dustproof sealing plug 5 and the filling opening 4 forms a flexible sealing surface.which compensates for the connection gap through elastic deformation. Even in the event of vibrations or shocks during operation, this reliably prevents the ingress of external moisture and corrosive gases into the enlarged cavity 3, while simultaneously preventing leakage of the internal fluid. This ensures stable pressure in the cavity and thus maintains the control accuracy of the stiffness and the dynamic response behavior of the elastic support component. The groove 2 has a W-shaped cross-section, which comprises two downwardly curved circular arc sections and an intermediate, upwardly curved transition section. In this way, the unique geometric shape achieves efficient load transfer and optimized contact performance: Before filling with fluid, the circular arc sections of the W-shaped groove 2 form a flexible bearing area in the elastic rubber body 1.This preserves the elastic damping properties of the rubber material and effectively absorbs vibrations and shocks during system operation. When the external hydraulic device injects fluid into the enlarged cavity 3 and a certain pressure is reached, the fluid pressure is transmitted upwards, uniformly pushing the circular arc sections and the transition section of the W-shaped groove 2 upwards as a whole. This transforms the initially indented W-shape into a planar contact state that rests against the underside of the upper frame of the gearbox housing. This surface contact design can significantly increase the contact area between the support structure and the gearbox housing and distribute the load evenly. This avoids local stress concentrations that occur with traditional point or line contacts.and consequently increased the load-bearing capacity and stability of the elastic support component.

[0018] Furthermore, several annular steel plates 8 are embedded and fixed in the lateral outer wall of the elastic rubber body 1, distributed in a vertical arrangement. The outer diameter of each annular steel plate 8 is adapted to the outer contour of the elastic rubber body 1. The annular steel plates 8 act as rigid reinforcing elements. Their vertical arrangement ensures that, when the elastic rubber body 1 is loaded, the annular constraint of the steel plates limits excessive radial expansion of the rubber material. This avoids the problem of stiffness loss and reduced stability that occurs in traditional all-rubber constructions due to excessive lateral deformation under fluctuating loads. A vortex plate 6 is arranged in the enlarged cavity 3. The vortex plate 6 has a semicircular, plate-shaped structure with a central flow opening.The semicircular, plate-shaped structure effectively alters the fluid flow path, deflecting the injected fluid in all directions upon impact with the vortex plate 6. The plate's curved surface disperses the concentrated fluid impact force in multiple directions, reducing the fluid's flow velocity and preventing an instantaneous, excessive pressure surge of the high-velocity fluid on the elastic rubber body 1. The central flow opening ensures that the fluid pressure is transmitted continuously and stably upwards despite the reduced flow velocity. This maintains uniform deformation of the rubber material in the area of ​​the groove 2 and ensures consistent stiffness control of the elastic support component.Furthermore, in this invention, the vortex plate 6 also dampens the fluid flow, which reduces turbulence in the cavity and minimizes vibrations and noise caused by unsteady flow. At the same time, it extends the service life of the seals and lines in the hydraulic system. This further increases the operational reliability and stability of the fluid-filled elastic support component for the gearbox housing under complex operating conditions. Reference symbol list 1 elastic rubber body 2 Nut 3 extended cavity 4 Filling opening 5 dustproof sealing plugs 6 Vertebral plate 7 round base plates 8 ring-shaped steel plates

Claims

[1] Deformation-resistant, fluid-filled, and elastic support component for gearbox housings, comprising an elastic rubber body (1), wherein a downward-pointing groove (2) is provided on the top of the elastic rubber body (1), the depth of the groove (2) being 1 / 4 to 1 / 3 of the height of the elastic rubber body (1) in order to reduce the rubber volume on the elastic rubber body (1) and to form a flexible, elastically deformable bearing area, and wherein an expanded cavity (3) is provided within the elastic rubber body (1), wherein this expanded cavity (3) has a conical transition structure with a narrower upper and wider lower region, and the lower end of which is connected via a hydraulic line to an external hydraulic device in order to fill fluid into the expanded cavity (3) through the hydraulic device, the fluid pressure being able to be transmitted upwards,to raise the rubber material evenly in the area of ​​the groove (2). [2] Support component according to claim 1, characterized by , that several annular steel plates (8) are embedded and fixed in the lateral outer wall of the elastic rubber body (1), which are distributed in a vertical arrangement, wherein the outer diameter of each annular steel plate (8) is adapted to the outer outline of the elastic rubber body (1). [3] Support component according to claim 1 or 2, characterized by , that the lower end of the elastic rubber body (1) is detachably connected to a round base plate (7) via bolts, wherein a filling opening (4) is provided in the round base plate (7) which is connected to the enlarged cavity (3). [4] Support component according to claim 3, characterized by , that a dustproof sealing plug (5) with a sealing ring is fitted in the filling opening (4). [5] Support component according to one of the preceding claims, characterized by , that a vortex plate (6) is arranged in the enlarged cavity (3), wherein the vortex plate (6) has a semi-circular plate-shaped structure with a central flow opening to buffer the flow velocity of the liquid. [6] Support component according to one of the preceding claims, characterized by , that the groove (2) has a W-shaped cross-section and comprises two downwardly curved circular arc sections and an intermediate, upwardly curved transition section.

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