Multidirectional vibration damping bearing base structure

Abstract

The application provides a multi-directional damping bearing base structure, comprising: a first base, a top surface of which is used for bearing a bearing, and a bottom surface of which is configured with a first bending surface, the first bending surface comprising a first plane extending along a first direction and a second plane extending along a second direction, the first plane being arranged at an angle with the second plane; a second base, a bottom surface of which is used for connecting with an external structure, and a top surface of which is configured with a second bending surface matched with the first bending surface; and a damping layer arranged between the first bending surface and the second bending surface. The multi-directional damping bearing base structure can realize multi-directional vibration suppression, can be improved in design on the basis of the original base, can reduce the weight of the base, can improve the damping effect of the base, and can improve the impact resistance of the base. Moreover, the damping and impact resistance performance is integrated in one, the structure is simple and compact, and installation is convenient.

Description

Technical Field

[0001] This invention relates to the field of bearing vibration reduction structure technology, and in particular to a multi-directional vibration reduction bearing base structure. Background Technology

[0002] Currently, the shaft vibration of most rotating equipment is transmitted to the machine feet through the bearing base. However, most existing bases are steel structures with low damping and high stiffness, which do not isolate the shaft vibration. Moreover, existing bases cannot achieve multi-directional vibration reduction for the bearings.

[0003] Therefore, there is an urgent need for a base structure that can reduce bearing vibration in multiple directions. Summary of the Invention

[0004] This invention provides a multi-directional vibration damping bearing base structure to solve the problem that existing bases cannot achieve multi-directional vibration damping of bearings.

[0005] This invention provides a multi-directional vibration damping bearing base structure, comprising:

[0006] A first base, the top surface of the first base is used to support the bearing, and the bottom surface of the first base is constructed with a first bending surface, the first bending surface including a first plane extending along a first direction and a second plane extending along a second direction, the first plane and the second plane being set at an angle;

[0007] The second base has a bottom surface for connection with an external structure, and a top surface of the second base is constructed with a second bending surface that matches the first bending surface.

[0008] A damping layer is disposed between the first bending surface and the second bending surface, and the damping layer extends along the bending direction between the first bending surface and the second bending surface.

[0009] According to the multi-directional vibration damping bearing base structure provided by the present invention, the damping layer comprises:

[0010] An elastic damping layer is filled between the first bending surface and the second bending surface;

[0011] The skeleton is supported in the elastic damping layer.

[0012] According to the present invention, a multi-directional vibration damping bearing base structure is provided, wherein the elastic damping layer is a rubber damping layer.

[0013] According to the present invention, a multi-directional vibration damping bearing base structure is provided, wherein the skeleton is a carbon fiber skeleton.

[0014] According to the present invention, a multi-directional vibration damping bearing base structure is provided, wherein the frame comprises:

[0015] Multiple skeleton units, each skeleton unit comprising: a ring unit and multiple ligaments; the ring unit and the ligaments are both disposed in the elastic damping layer;

[0016] The ligaments extend along the tangential direction of the ring unit, and each ligament connects sequentially to a tangent point on the ring unit along the circumference of the ring unit. The ring unit is connected to the ligaments of adjacent ring units through the ligaments arranged along its tangential direction.

[0017] According to a multi-directional vibration damping bearing base structure provided by the present invention, the first bending surface further includes a third plane extending along a third direction, and the first plane, the second plane and the third plane are arranged at an angle.

[0018] According to the multi-directional vibration damping bearing base structure provided by the present invention, the bottom surface of the first base is provided with a plurality of first bending surfaces, and the top surface of the second base is provided with a plurality of second bending surfaces that correspond one-to-one with the plurality of first bending surfaces.

[0019] According to the present invention, a multi-directional vibration damping bearing base structure is provided, wherein the bottom surface of the first base is constructed with two first bending surfaces, and the top surface of the second base is constructed with two second bending surfaces that correspond one-to-one with the two first bending surfaces.

[0020] The damping layer comprises two layers, namely a first damping layer and a second damping layer. The first damping layer is located on the first side of the bearing and is disposed between one of the corresponding first bending surfaces and the second bending surface. The second damping layer is located on the second side of the bearing and is disposed between another corresponding first bending surface and the second bending surface.

[0021] According to a multi-directional vibration damping bearing base structure provided by the present invention, the top surface of the first base is provided with a groove for accommodating the bearing, and the bearing is at least partially disposed in the groove.

[0022] According to a multi-directional vibration damping bearing base structure provided by the present invention, the top surface of the first base is provided with a groove extending into the second base, and the bearing is at least partially disposed in the groove.

[0023] The multi-directional vibration damping bearing base structure provided by this invention comprises a first base with a first bending surface and a second base with a second bending surface. The first bending surface includes a first plane extending along a first direction and a second plane extending along a second direction. The second bending surface matches the first bending surface, and a damping layer is provided between the first and second bending surfaces. This enables the multi-directional vibration damping bearing base structure to achieve multi-directional vibration suppression. It allows for improved design of existing bases, reducing base weight, improving vibration damping, and enhancing impact resistance. Furthermore, it fully utilizes spatial structure, integrating vibration damping and impact resistance into a single unit, resulting in a simple, compact structure that is easy to install. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the multi-directional vibration damping bearing base structure provided by the present invention;

[0026] Figure 2 This is a cross-sectional schematic diagram of the multi-directional vibration damping bearing base structure provided by the present invention;

[0027] Figure 3 This is a cross-sectional schematic diagram of the damping layer provided by the present invention;

[0028] Figure 4 This is a schematic diagram of the skeleton unit provided by the present invention;

[0029] Figure label:

[0030] 10. First base; 100. First bending surface; 1001. First plane; 1002. Second plane; 110. Groove; 20. Second base; 200. Second bending surface; 30. Damping layer; 301. Elastic damping layer; 302. Skeleton; 3021. Ring unit; 3022. Ligament; 40. Bearing. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0032] In the description of the embodiments of the present invention, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0034] The following is combined Figure 1 and Figure 2 This invention describes a multi-directional vibration damping bearing base structure. The multi-directional vibration damping bearing base structure includes: a first base 10, a second base 20, and a damping layer 30.

[0035] The first base 10 is an upper base, and its top surface is used to support the bearing 40, meaning the bearing 40 is mounted on the first base 10. The bottom surface of the first base 10 has a first bending surface 100, which includes a first plane 1001 extending along a first direction and a second plane 1002 extending along a second direction. The first plane 1001 and the second plane 1002 are set at an angle. In this embodiment, the angle between the first plane 1001 and the positive X-axis is an acute angle, and the angle between the second plane 1002 and the positive X-axis is an obtuse angle.

[0036] The second base 20 is a lower base. The bottom surface of the second base 20 is used to connect with the hull structure (external structure). The top surface of the second base 20 is constructed with a second bending surface 200 that matches the first bending surface 100, so that the first base 10 can be disposed on the second base 20. Since the first bending surface 100 includes a first plane 1001 extending along a first direction and a second plane 1002 extending along a second direction, the second bending surface 200 correspondingly includes a plane parallel to the first plane 1001 and a plane parallel to the second plane 1002.

[0037] Depending on the specific vibration reduction requirements, one or more first planes 1001 and second planes 1002 can be provided on the first bending surface 100. Correspondingly, multiple planes can also be provided on the second bending surface 200 to match the first bending surface 100 and the second bending surface 200.

[0038] A damping layer 30 is disposed between a first bending surface 100 and a second bending surface 200, and the damping layer 30 extends along the bending direction between the first bending surface 100 and the second bending surface 200. Since the first bending surface 100 includes a first plane 1001 extending along a first direction and a second plane 1002 extending along a second direction, and the second bending surface 200 matches the first bending surface 100, the entire damping layer 30 is bent, and the damping layer 30 includes a first portion disposed along the first direction and a second portion disposed along the second direction, which can achieve multi-directional vibration suppression.

[0039] The multi-directional vibration damping bearing base structure provided in this embodiment, after the bearing 40 is installed on the first base 10 and the second base 20 is connected to the hull structure, if the hull structure vibrates, the first part of the damping layer 30 arranged along the first direction and the second part arranged along the second direction can enable the entire multi-directional vibration damping bearing base structure to simultaneously have the ability to suppress axial (X-direction) and vertical (Y-direction) vibrations.

[0040] The multi-directional vibration damping bearing base structure provided in this embodiment of the invention, by setting a first base 10 with a first bending surface 100 and a second base 20 with a second bending surface 200, wherein the first bending surface 100 includes a first plane 1001 extending along a first direction and a second plane 1002 extending along a second direction, and the second bending surface 200 matches the first bending surface 100, and a damping layer 30 is provided between the first bending surface 100 and the second bending surface 200, enables the multi-directional vibration damping bearing base structure to achieve multi-directional vibration suppression. It allows for improved design of existing bases, reducing base weight, improving vibration damping effect, and enhancing impact resistance. Furthermore, it fully utilizes the spatial structure, integrating vibration damping and impact resistance performance into a single unit, resulting in a simple, compact structure that is easy to install.

[0041] It should be noted that if the vibration reduction effect cannot be guaranteed in two directions, a third plane extending along a third direction can be provided on the first bending surface 100, with the first plane 1001, the second plane 1002 and the third plane set at an angle.

[0042] Accordingly, the second bending surface 200 includes a plane parallel to the first plane 1001, a plane parallel to the second plane 1002, and a plane parallel to the third plane. The damping layer 30 includes a first portion disposed along a first direction, a second portion disposed along a second direction, and a third portion disposed along a third direction, thereby ensuring vibration suppression capability in multiple directions.

[0043] In one embodiment, such as Figure 3 As shown, the damping layer 30 includes: an elastic damping layer 301 and a skeleton 302.

[0044] The elastic damping layer 301 is filled between the first bending surface 100 and the second bending surface 200. Since the first bending surface 100 includes a first plane 1001 extending in a first direction and a second plane 1002 extending in a second direction, and the second bending surface 200 matches the first bending surface 100, the elastic damping layer 301 also has portions extending in the first direction and portions extending in the second direction. A frame 302 is supported within the elastic damping layer 301 to support the entire elastic damping layer 301.

[0045] The multi-directional vibration damping bearing base structure provided in this embodiment, after the bearing 40 is installed on the first base 10 and the second base 20 is connected to the hull structure, if the hull structure vibrates, the portion of the elastic damping layer 301 arranged along the first direction and the portion arranged along the second direction can enable the entire multi-directional vibration damping bearing base structure to simultaneously have the ability to suppress axial (X-direction) and vertical (Y-direction) vibrations.

[0046] Depending on the actual needs, the elastic damping layer 301 can be made of a material with a relatively large damping factor to improve vibration reduction performance; for example, the elastic damping layer 301 can be made of rubber damping layer. The frame 302 can be made of high-strength composite material; for example, the frame 302 can be made of carbon fiber frame, which improves load-bearing performance while reducing the weight of the base.

[0047] In one embodiment, such as Figure 3 and Figure 4 As shown, the skeleton 302 includes multiple skeleton units. Each skeleton unit includes a ring unit 3021 and multiple ligaments 3022. Both the ring unit 3021 and the ligaments 3022 are disposed in the elastic damping layer 301. The ligaments 3022 extend along the tangential direction of the ring unit 3021, and each ligament 3022 is sequentially connected to a tangent point on the ring unit 3021 along the circumference of the ring unit 3021. The ring unit 3021 is connected to the ligaments 3022 of adjacent ring units 3021 through the ligaments 3022 disposed along its tangential direction.

[0048] In this embodiment, each skeletal unit includes a ring unit 3021 and three ligaments 3022. The three ligaments 3022 are sequentially connected to the tangent points on the ring unit 3021 along its circumference. The ring unit 3021 is connected to the ligaments 3022 of adjacent ring units 3021 through the ligaments 3022 arranged along its tangential direction. Thus, each ring unit 3021 is connected to three adjacent ring units 3021 through ligaments 3022. This structure can achieve different negative Poisson's ratios by designing the structural parameters of the ring units 3021. This structure has a higher shear modulus, giving it good impact energy absorption performance.

[0049] In summary, this embodiment achieves the suppression of multi-directional vibration of the bearing by designing a sandwich-like base. The damping layer, through a multi-ring composite material skeleton, reduces structural weight while increasing the shear modulus, giving the structure excellent impact energy absorption performance and improving the vibration reduction effect of low-frequency vibrations. The base's vibration reduction performance is enhanced by filling with damping material. Designing the damping layer in a polygonal shape enables the base to suppress multi-directional vibrations. This structure is simple and can be improved upon existing base designs, reducing weight, improving vibration reduction, and enhancing impact resistance. This invention fully utilizes spatial structure, integrating vibration reduction and impact resistance into a single unit, resulting in a simple, compact structure that is easy to install.

[0050] In another embodiment, such as Figure 1 and Figure 2 As shown, the bottom surface of the first base 10 is constructed with a plurality of first bending surfaces 100, and the top surface of the second base 20 is constructed with a plurality of second bending surfaces 200 that correspond one-to-one with the plurality of first bending surfaces 100.

[0051] In this embodiment, the bottom surface of the first base 10 is constructed with two first bending surfaces 100, and the top surface of the second base 20 is constructed with two second bending surfaces 200 that correspond one-to-one with the two first bending surfaces 100.

[0052] Two damping layers 30 are provided: a first damping layer and a second damping layer. The first damping layer is located on the left side of the bearing 40, positioned between a corresponding first bending surface 100 and a second bending surface 200 on the left side. Therefore, the first damping layer primarily serves to reduce vibration on the left side of the first base 10 and the second base 20. The second damping layer is located on the second side of the bearing 40, positioned between a corresponding first bending surface 100 and a second bending surface 200 on the right side. Therefore, the second damping layer primarily serves to reduce vibration on the right side of the first base 10 and the second base 20. The first and second damping layers are independently configured, so that if either damping layer malfunctions, the other damping layer can still maintain a certain level of vibration reduction.

[0053] In one embodiment, such as Figure 1 and Figure 2 As shown, the top surface of the first base 10 has a groove 110 for mounting the bearing. A bearing seat is welded onto the bearing 40, and the bearing 40 is mounted on the top surface of the first base 10 via the bearing seat. The bearing 40 is at least partially disposed in the groove 110. Thus, the bearing 40 can be fixed using the groove 110 of the first base 10, enhancing the stability of the multi-directional vibration damping bearing base structure in fixing the bearing 40.

[0054] In another embodiment, such as Figure 1 and Figure 2 As shown, the top surface of the first base 10 has a groove 110 extending into the second base 20. A bearing seat is welded onto the bearing 40, and the bearing 40 is disposed on the top surface of the first base 10 through the bearing seat. The bearing 40 is at least partially disposed in the groove 110. Thus, the bearing 40 can be fixed using the groove 110 of the first base 10 and the second base 20, enhancing the stability of the multi-directional vibration damping bearing base structure in fixing the bearing 40.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-directional vibration damping bearing base structure, characterized in that, include: A first base, the top surface of the first base is used to support the bearing, and the bottom surface of the first base is constructed with a first bending surface, the first bending surface including a first plane extending along a first direction and a second plane extending along a second direction, the first plane and the second plane being set at an angle; The second base has a bottom surface for connection with an external structure, and a top surface of the second base is constructed with a second bending surface that matches the first bending surface. A damping layer is disposed between the first bending surface and the second bending surface, and the damping layer extends along the bending direction between the first bending surface and the second bending surface; The damping layer includes: an elastic damping layer and a skeleton; the elastic damping layer is filled between the first bending surface and the second bending surface; the skeleton is supported in the elastic damping layer; the skeleton includes: a plurality of skeleton units, each skeleton unit including: a ring unit and a plurality of ligaments; the ring unit and the ligaments are both disposed in the elastic damping layer; The ligaments extend along the tangential direction of the ring unit, and each ligament connects sequentially to a tangent point on the ring unit along the circumference of the ring unit. The ring unit is connected to the ligaments of adjacent ring units through the ligaments arranged along its tangential direction.

2. The multi-directional vibration damping bearing base structure according to claim 1, characterized in that, The elastic damping layer is a rubber damping layer.

3. The multi-directional vibration damping bearing base structure according to claim 1, characterized in that, The skeleton is a carbon fiber skeleton.

4. The multi-directional vibration damping bearing base structure according to claim 1, characterized in that, The first bending surface also includes a third plane extending in a third direction, and the first plane, the second plane and the third plane are set at an angle to each other.

5. The multi-directional vibration damping bearing base structure according to any one of claims 1-4, characterized in that, The bottom surface of the first base has a plurality of first bending surfaces, and the top surface of the second base has a plurality of second bending surfaces that correspond one-to-one with the plurality of first bending surfaces.

6. The multi-directional vibration damping bearing base structure according to claim 5, characterized in that, The bottom surface of the first base has two first bending surfaces, and the top surface of the second base has two second bending surfaces that correspond one-to-one with the two first bending surfaces. The damping layer comprises two layers, namely a first damping layer and a second damping layer. The first damping layer is located on the first side of the bearing and is disposed between one of the corresponding first bending surfaces and the second bending surface. The second damping layer is located on the second side of the bearing and is disposed between another corresponding first bending surface and the second bending surface.

7. The multi-directional vibration damping bearing base structure according to any one of claims 1-4, characterized in that, The top surface of the first base is provided with a groove for accommodating the bearing, and the bearing is at least partially disposed in the groove.

8. The multi-directional vibration damping bearing base structure according to any one of claims 1-4, characterized in that, The top surface of the first base has a groove extending into the second base, and the bearing is at least partially disposed in the groove.

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