Rigidity-adjustable multidirectional vibration isolator
By designing a multi-directional vibration isolator with adjustable stiffness and utilizing a combination of multiple vibration isolation structures and transmission connectors, the problems of fixed stiffness and multi-directional vibration coupling in traditional vibration isolators are solved, achieving efficient vibration isolation and stability in multi-directional vibration environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional vibration isolators have fixed stiffness, making it difficult to adapt to complex and varied vibration environments. Moreover, most vibration isolators are only optimized for vibration in a single direction, and cannot effectively suppress multi-directional vibration coupling conditions.
Design a multi-directional vibration isolator with adjustable stiffness. By setting multiple vibration isolation structures and transmission connectors in the isolator body, the structures are highly integrated. The stiffness is adjusted by adjusting the initial amount of the vibration isolation spring through the adjustment structure. It includes the combined use of a stabilizing part, a vibration isolation part, an adjustment structure and a transmission connector.
It achieves effective vibration isolation in multi-directional vibration environments, reduces production costs, shrinks size, improves user experience and stability of vibration isolation effect, and adapts to complex and changing vibration conditions.
Smart Images
Figure CN224049593U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of vibration isolator, especially to a multi -direction vibration isolator of adjustable rigidity. BACKGROUND
[0002] In the field of precision instruments, aerospace, high-end equipment manufacturing, vibration isolation is a key technology to ensure stable operation of equipment. Traditional vibration isolators usually use passive isolation elements such as rubber, metal springs or air springs, and their stiffness characteristics are fixed, which makes it difficult to adapt to complex and variable vibration environments. When the external excitation frequency changes or the load conditions change, the vibration isolator with fixed stiffness may not effectively suppress vibration due to resonance or reduced isolation efficiency, affecting the precision and service life of the equipment.
[0003] In existing adjustable stiffness vibration isolation technology, some schemes achieve stiffness adjustment through mechanical adjustment or intelligent materials (such as magnetorheological fluid, piezoelectric ceramic), but there are problems such as complex structure, slow response speed or high cost. In addition, most vibration isolators are optimized for single direction vibration, which is difficult to meet the needs of multi-direction vibration coupling conditions, resulting in limited practical application. SUMMARY
[0004] The main purpose of the utility model is to provide a multi -direction vibration isolator of adjustable rigidity, which aims to highly integrate the structures of the vibration isolator and facilitate the adjustment of the stiffness of the vibration isolator.
[0005] To achieve the above purpose, the utility model provides a multi -direction vibration isolator of adjustable rigidity, which comprises a vibration isolator body, an installation cavity is arranged in the vibration isolator body, a plurality of vibration isolation structures are connected to the outer periphery of the vibration isolator body in the installation cavity, and a transmission connecting piece is arranged in the installation cavity relative to the plurality of vibration isolation structures.
[0006] The vibration isolation structure comprises a stabilizing part and a vibration isolation part, the stabilizing part is connected to the transmission connecting piece, the vibration isolation part is arranged in the vibration isolator body, and a vibration isolation spring and an adjusting structure are arranged between the vibration isolation part and the stabilizing part in the installation cavity, and the vibration isolation spring is sleeved on the adjusting structure.
[0007] The adjusting structure is provided with an adjusting rod relative to the vibration isolation part, the adjusting rod is arranged in the stabilizing part, the adjusting structure is provided with a limiting piece at one end away from the vibration isolation part relative to the adjusting rod, and the limiting piece is connected to the stabilizing part.
[0008] In an embodiment of the present application, the stabilizing part is provided with a through hole penetrating the outer periphery of the vibration isolator body, the limiting piece is arranged in the through hole, the bottom of the vibration isolator body is provided with a through hole relative to the through hole, and the stabilizing part is connected to the through hole.
[0009] In an embodiment of the present application, a top portion of the vibration isolator body is coaxially provided with a stabilizing block, the stabilizing block is provided with at least one connecting cavity connected to the mounting cavity towards the transmission connecting piece, a vibration isolation structure is connected in the connecting cavity, and the vibration isolation part penetrates the top portion of the stabilizing block;
[0010] The stabilizing block is provided with an adjusting hole towards the stabilizing part.
[0011] In an embodiment of the present application, a plurality of guide rods parallel to the adjusting rod are arranged on the periphery of the vibration isolation part towards the stabilizing part, the periphery of the stabilizing part is provided with a guide groove penetrating the guide rods, and the plurality of guide grooves are wrapped around the through hole.
[0012] The guide rod is sleeved with a buffer spring.
[0013] In an embodiment of the present application, the stabilizing part is provided with a connecting rod towards the transmission connecting piece, the connecting rod is provided with a transmission part towards the transmission connecting piece, and the transmission part is slidingly connected to the transmission connecting piece.
[0014] In an embodiment of the present application, the bottom portion of the transmission connecting piece is provided with a stabilizing seat, and the stabilizing seat is slidingly connected to the bottom wall of the mounting cavity.
[0015] By adopting the above technical scheme, the present application has the following advantages:
[0016] 1. The mounting cavity for mounting the vibration isolation structure is arranged in the vibration isolator body, a plurality of vibration isolation structures can be arranged in the mounting cavity towards the outside of the vibration isolator body, so that the vibration isolator can play a vibration isolation effect in multiple directions, and the ends of the plurality of vibration isolation structures are connected to each other through a transmission connecting piece, the transmission connecting piece makes the plurality of vibration isolation structures form a whole, when the vibration isolation structure in one direction works, the vibration can be transmitted to the other vibration isolation structures through the transmission connecting piece, the plurality of vibration isolation structures can work cooperatively and share the load, so that the vibration waves in different directions can be completely separated under the action of the vibration isolation structures in different directions, through the above structure, the structures in the vibration isolator are highly integrated, which is beneficial to reduce the production cost, and the size of the vibration isolator can be reduced, so that it has more application scenarios.
[0017] 2. The vibration isolation structure itself comprises a vibration isolation part and a stabilizing part, the stabilizing part is slidingly connected to the bottom of the mounting cavity, the stabilizing part is used for mounting the vibration isolation part, the stabilizing part only moves slightly, and the stability of the mounting position of the entire vibration isolation structure can be ensured, the vibration isolation part can be limited and guided by the shell of the vibration isolator body, so that the vibration isolation effect can be more stable, the vibration isolation part is provided with an adjusting structure for limiting towards the stabilizing part, and a user can adjust the distance between the vibration isolation part and the stabilizing part through the adjusting structure, because the vibration isolation spring is between the vibration isolation part and the stabilizing part and is sleeved on the adjusting structure, the initial amount of the vibration isolation spring can be adjusted by adjusting the distance through the adjusting structure, and the stiffness of the vibration isolator can be easily adjusted according to the working requirement by adjusting the initial amount of the vibration isolation spring.
[0018] 3. Specifically, the adjusting structure comprises an adjusting rod, the adjusting rod can be a screw rod, a limiting piece is in the stabilizing part and is connected to the adjusting rod, the limiting piece can be a nut, the stiffness can be easily adjusted by rotating the limiting piece, and the adjusting rod can be used as a guide rod for stabilizing the movement direction of the vibration isolation part, so that the vibration isolation part is prevented from deviating from the predetermined movement track and causing problems in the predetermined vibration isolation effect, the stiffness of the vibration isolator can be more stably and efficiently adjusted, the vibration can be absorbed, and the use experience of a user can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.
[0020] Fig. 1 It is a structural schematic view of the adjustable stiffness multi-directional vibration isolator of the present application.
[0021] Fig. 2 It is a sectional view of the adjustable stiffness multi-directional vibration isolator of the present application.
[0022] Fig. 3 It is a sectional view of the vibration isolation structure of the adjustable stiffness multi-directional vibration isolator of the present application.
[0023] EXPLANATION OF DRAWINGS:
[0024] 1, vibration isolator body; 11, stabilizing block; 12, adjusting hole; 13, mounting cavity; 2, transmission connecting piece; 21, stabilizing seat; 3, vibration isolation structure; 31, vibration isolation part; 32, guide rod; 33, stabilizing part; 34, guide groove; 35, through hole; 36, connecting rod; 37, transmission part; 4, vibration isolation spring; 5, adjusting structure; 51, adjusting rod; 52, limiting piece.
[0025] The realization, functional features and advantages of the utility model will be further explained in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.
[0027] Reference Figs. 1-3 In order to achieve the above-mentioned purpose, the utility model provides a kind of multiaxial vibration isolator of adjustable rigidity, including vibration isolator body 1, vibration isolator body 1 is equipped with mounting cavity 13, mounting cavity 13 is connected with multiple vibration isolation structures 3 towards the outer periphery of vibration isolator body 1 in, mounting cavity 13 is equipped with transmission connecting piece 2 relative to multiple vibration isolation structures 3;
[0028] Vibration isolation structure 3 includes stabilizing part 33 and vibration isolation part 31, stabilizing part 33 is connected to transmission connecting piece 2, vibration isolation part 31 is arranged in vibration isolator body 1, vibration isolation spring 4 and adjusting structure 5 are arranged between vibration isolation part 31 and stabilizing part 33 in mounting cavity 13, vibration isolation spring 4 is sleeved on adjusting structure 5;
[0029] Adjusting structure 5 is equipped with adjusting rod 51 relative to vibration isolation part 31, adjusting rod 51 is arranged in stabilizing part 33, adjusting structure 5 is equipped with limiting piece 52 relative to the end of adjusting rod 51 away from vibration isolation part 31, limiting piece 52 is connected to stabilizing part 33.
[0030] Vibration isolator body 1 is equipped with mounting cavity 13 for installing vibration isolation structure 3, multiple vibration isolation structures 3 can be arranged in mounting cavity 13 towards the outside of vibration isolator body 1, so that vibration isolator can play the effect of vibration isolation in multiple directions, and the end of multiple vibration isolation structures 3 is connected with each other by a transmission connecting piece 2, transmission connecting piece 2 makes multiple vibration isolation structures 3 form a whole, when vibration isolation structure 3 in one direction works, vibration can be transmitted to other vibration isolation structures 3 through transmission connecting piece 2, multiple vibration isolation structures 3 can work cooperatively, share together, so that vibration wave in different directions can be completely separated under the action of vibration isolation structure 3 in different directions, through the above structure, each structure in vibration isolator can be highly integrated, which is conducive to reducing production cost, and the volume of vibration isolator can be reduced, so that it has more application scenarios.
[0031] The vibration isolation structure 3 itself comprises a vibration isolation part 31 and a stabilizing part 33, the stabilizing part 33 is slidingly connected to the bottom of the mounting cavity 13, the stabilizing part 33 is used to mount the vibration isolation part 31, the stabilizing part 33 only moves slightly, which can ensure the stability of the installation position of the entire vibration isolation structure 3, and the vibration isolation part 31 can be limited and guided by the shell of the vibration isolator body 1, so that the vibration isolation effect can be more stable, the vibration isolation part 31 is provided with an adjusting structure 5 for limiting towards the stabilizing part 33, the user can adjust the distance between the vibration isolation part 31 and the stabilizing part 33 through the adjusting structure 5, because the vibration isolation spring 4 is between the vibration isolation part 31 and the stabilizing part 33 and is sleeved on the adjusting structure 5, adjusting the distance through the adjusting structure 5 can adjust the initial amount of the vibration isolation spring 4, and adjusting the initial amount of the vibration isolation spring 4 can easily realize the adjustment of the stiffness of the vibration isolator according to the needs of work.
[0032] Specifically, the adjusting structure 5 comprises an adjusting rod 51, which can be a screw rod, and a limiting piece 52 in the stabilizing part 33 and connected to the adjusting rod 51, which can be a nut, and the stiffness can be easily adjusted by rotating the limiting piece 52, and the adjusting rod 51 can serve as a guide rod 32 to stabilize the moving direction of the vibration isolation part 31, avoiding the vibration isolation part 31 deviating from the predetermined moving track and causing problems in the predetermined vibration isolation effect, and through the cooperation of the above structures, the stiffness of the vibration isolator can be more stably and efficiently adjusted, and the vibration can be absorbed, which can effectively improve the user's experience.
[0033] For reference Figs. 1-3 In an embodiment of the present application, the stabilizing part 33 is provided with a through hole 35 towards the outer periphery of the vibration isolator body 1, the limiting piece 52 penetrates the through hole 35, and the bottom of the vibration isolator body 1 is provided with a through hole relative to the through hole 35, and the stabilizing part 33 is connected to the through hole.
[0034] The stabilizing part 33 is provided with a through hole 35, and the shell of the vibration isolator body 1 is provided with a through hole relative to the through hole 35, and the through hole is connected to the through hole 35, the stabilizing part 33 itself hardly moves, which can ensure the stability of the vibration isolation structure 3, and the limiting piece 52 is in the through hole 35, so that the user can directly adjust the limiting piece 52 through the through hole, which is conducive to the convenient adjustment of the vibration isolator.
[0035] For reference Figs. 2-3 In an embodiment of the present application, the top of the vibration isolator body 1 is coaxially provided with a stabilizing block 11, the stabilizing block 11 is provided with at least one connecting cavity connected to the mounting cavity 13 towards the transmission connecting piece 2, the connecting cavity is connected with the vibration isolation structure 3, and the vibration isolation part 31 penetrates out of the top of the stabilizing block 11;
[0036] The stabilizing block 11 is provided with an adjusting hole 12 towards the stabilizing part 33.
[0037] Unlike the vibration isolation structure 3 connected to the bottom of the mounting cavity 13, which can be naturally stabilized after the shell limits the vibration isolation part 31, the vibration isolation structure 3 at the top needs to be provided with a stabilizing block 11, and a connecting cavity is opened in the stabilizing block 11 to limit one vibration isolation structure 3, which can ensure the stability of the vibration isolation structure 3 at the top. In order to facilitate the adjustment of the vibration isolator at the top, the stabilizing block 11 is provided with an adjusting hole 12 facing the through hole 35. Because the stabilizing block 11 clamps the stabilizing part 33, the user can adjust the stiffness of the vibration isolator through the adjusting hole 12, while ensuring the structural strength.
[0038] For reference Fig. 2 In an embodiment of the present application, a plurality of guide rods 32 parallel to the adjusting rod 51 are arranged on the periphery of the vibration isolation part 31 towards the stabilizing part 33, and a guide groove 34 is formed through the periphery of the stabilizing part 33 opposite the guide rod 32, and the plurality of guide grooves 34 are wrapped around the through hole 35.
[0039] A buffer spring is sleeved on the guide rod 32.
[0040] In order to further limit the vibration isolation part 31, the guide rod 32 is arranged on the vibration isolation part 31, and the guide groove 34 is arranged in the stabilizing part 33. The plurality of guide rods 32 are wrapped around the through hole 35, which can further limit the vibration isolation part 31 and make its working state stable. The buffer spring arranged on the guide rod 32 can protect the vibration isolation spring 4. Through the above structure, the vibration isolation effect of the vibration isolator can be effectively improved.
[0041] For reference Fig. 3 In an embodiment of the present application, the stabilizing part 33 is provided with a connecting rod 36 towards the transmission connecting piece 2, the connecting rod 36 is provided with a transmission part 37 towards the transmission connecting piece 2, and the transmission part 37 is slidingly connected to the transmission connecting piece 2.
[0042] The stabilizing part 33 is connected to the connecting piece through the connecting rod 36, and the connecting rod 36 is provided with the transmission part 37. In the present application, the transmission part 37 is a sphere. The spherical transmission part 37 can ensure that the vibration wave in any direction is stably transmitted to the transmission connecting block, and then transmitted to other vibration isolation structures 3 through the transmission connecting block, so as to ensure the vibration isolation effect.
[0043] For reference Figs. 2-3 In an embodiment of the present application, the bottom of the transmission connecting piece 2 is provided with a stabilizing seat 21, and the stabilizing seat 21 is slidingly connected to the bottom wall of the mounting cavity 13.
[0044] The transmission connecting piece 2 increases the contact area with the mounting cavity 13 by being provided with the stabilizing seat 21 at the bottom, so as to ensure the stability of the transmission connecting piece 2 itself. The transmission connecting piece 2 can limit the vibration isolation structure 3, and ensure the structural strength of the entire vibration isolator.
[0045] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, for those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0046] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A multi-directional isolator of adjustable stiffness comprising an isolator body, characterized in that, The vibration isolator body is provided with a mounting cavity, a plurality of vibration isolation structures are connected to the outer periphery of the vibration isolator body in the mounting cavity, and the mounting cavity is provided with a transmission connecting piece relative to the plurality of vibration isolation structures; The vibration isolation structure comprises a stabilizing part and a vibration isolation part, the stabilizing part is connected to the transmission connecting piece, the vibration isolation part is arranged in the vibration isolator body, and a vibration isolation spring and an adjusting structure are arranged between the vibration isolation part and the stabilizing part in the mounting cavity, and the vibration isolation spring is sleeved on the adjusting structure; The adjusting structure is provided with an adjusting rod relative to the vibration isolation part, the adjusting rod is arranged in the stabilizing part, the adjusting structure is provided with a limiting piece away from the vibration isolation part relative to the adjusting rod, and the limiting piece is connected to the stabilizing part.
2. A variable stiffness multi-directional vibration isolator according to claim 1, wherein, The stabilizing part is provided with a through hole penetrating towards the outer periphery of the vibration isolator body, the limiting piece is arranged in the through hole, the bottom of the vibration isolator body is provided with a through hole relative to the through hole, and the stabilizing part is connected to the through hole.
3. A variable stiffness multi-directional vibration isolator according to claim 2, wherein, The top of the vibration isolator body is coaxially provided with a stabilizing block, the stabilizing block is provided with at least one connecting cavity connected to the mounting cavity relative to the transmission connecting piece, the connecting cavity is connected with the vibration isolation structure, and the vibration isolation part penetrates out of the top of the stabilizing block; The stabilizing block is provided with an adjusting hole relative to the stabilizing part.
4. The adjustable stiffness multidirectional vibration isolator of claim 1, wherein, The periphery of the vibration isolation part is provided with a plurality of guide rods parallel to the adjusting rod relative to the stabilizing part, the periphery of the stabilizing part is provided with a guide groove relative to the guide rod, and a plurality of guide grooves are arranged around the through hole. The guide rod is sleeved with a buffer spring.
5. The adjustable stiffness multidirectional vibration isolator of claim 1, wherein, The stabilizing part is provided with a connecting rod relative to the transmission connecting piece, the connecting rod is provided with a transmission part relative to the transmission connecting piece, and the transmission part is slidingly connected to the transmission connecting piece.
6. A variable stiffness multi-directional vibration isolator according to claim 5, wherein, The bottom of the transmission connecting piece is provided with a stabilizing seat, and the stabilizing seat is slidingly connected to the bottom wall of the mounting cavity.