Integrated rubber damper

Abstract

The utility model provides a kind of integrated rubber shock absorber belongs to mechanical damping technical field.The shock absorber aims at solving the problems of complicated installation,low space utilization,poor environmental adaptability and insufficient connection reliability in prior art.The integrated rubber shock absorber includes metal outer ring,metal inner ring and rubber damping structure arranged between the two,which is vulcanized integrally with the inner wall surface of metal outer ring and the outer wall surface of metal inner ring by adhesive.The utility model is integrally vulcanized and molded,which realizes structural integration and convenient installation;uses special rubber material to ensure stable performance in wide temperature range;and improves connection reliability and service life.

Description

Technical Field

[0001] This utility model relates to the field of mechanical vibration reduction technology, and in particular to an integrated rubber vibration damper. Background Technology

[0002] In engineering applications, various cylindrical devices are commonly used. Interference from various vibration factors can affect the working accuracy or reliability of these cylindrical devices, requiring vibration reduction. Furthermore, as many types of devices gradually develop towards miniaturization and integration, structural space is limited, and the space available for installing vibration dampers is relatively small.

[0003] Existing rubber vibration dampers are mostly installed in parallel as a set, which results in a loose layout, cumbersome installation, and low space utilization. Therefore, there is an urgent need to design an integrated annular rubber vibration damper to meet the comprehensive requirements of the above-mentioned equipment for efficient vibration reduction, compact layout, and high reliability. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an integrated rubber vibration damper to solve the technical problems of existing rubber vibration dampers, which are mostly multiple pieces installed in parallel and used as a set, resulting in loose layout, cumbersome installation, and low space utilization.

[0005] To achieve the above objectives, this utility model provides an integrated rubber vibration damper, including a metal outer ring, a metal inner ring, and a rubber vibration damping structure disposed between the metal inner ring and the metal outer ring. The rubber vibration damping structure is integrally formed with the inner wall surface of the metal outer ring and the outer wall surface of the metal inner ring by vulcanization with an adhesive.

[0006] Optionally, the rubber vibration damping structure includes a plurality of rubber strips, which are integrally formed with the inner wall surface of the outer metal ring and the outer wall surface of the inner metal ring by vulcanization with an adhesive.

[0007] Optionally, the rubber strip includes a molecular structure in which a preset polymer chain is introduced to achieve a constant modulus within the temperature range of -55℃ to +85℃.

[0008] Optionally, the inner wall surface of the metal inner ring is provided with an installation interface for installing the vibration damping equipment.

[0009] Optionally, the inner wall surface of the outer metal ring and the outer wall surface of the inner metal ring together form an annular cavity, and the rubber strip is uniformly or non-uniformly arranged in the annular cavity.

[0010] Optionally, the rubber strip includes a strip body and an extension integrally formed with the strip body and used to cover part of the outer wall surface of the metal outer ring.

[0011] Optionally, the outer metal ring is provided with a plurality of through holes, and the extension extends outward through the through holes.

[0012] Optionally, the cross-sectional shape of the adhesive strip body includes, but is not limited to, an arc shape, a square shape, or other irregular shapes.

[0013] Optionally, the rubber vibration damping structure includes an annular rubber strip.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) Highly integrated structure, convenient and efficient installation. This utility model forms a single component by vulcanizing the inner and outer metal rings and the rubber vibration damping structure into one piece. Furthermore, by setting an extension covering the outer metal ring, it can achieve pre-compression tightening installation without additional fasteners, which greatly simplifies the installation process and improves assembly efficiency and equipment space utilization.

[0015] (2) Stable and reliable performance over a wide temperature range. The special rubber material used in this invention has special polymer chains introduced into its molecular structure, which ensures that the elastic modulus of the shock absorber remains basically unchanged over a wide temperature range of -55℃ to +85℃. This overcomes the defect of the shock absorber's performance deterioration under extreme temperatures in the prior art and ensures the equipment's continuous and reliable vibration reduction effect under harsh environments.

[0016] (3) High connection reliability and long service life. The integrated vulcanization molding process ensures extremely high bonding strength between the rubber and the metal frame, while the pre-compression and tightening installation method utilizes the elastic deformation of the rubber to generate continuous radial pressure and friction, effectively preventing relative movement between the shock absorber and the mounting frame, thereby significantly improving the long-term reliability of the connection and the overall service life of the shock absorber. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a top view of a preferred embodiment of the integrated rubber vibration damper of this utility model; Figure 2 yes Figure 1 A cross-sectional view of the integrated rubber vibration damper along the AA direction; Figure 3 yes Figure 2 Enlarged structural diagram at point C; Figure 4yes Figure 1 A three-dimensional schematic diagram of the installation status of a centrally integrated rubber vibration damper; Figure 5 yes Figure 3 Top view; Figure 6 yes Figure 4 Cross-sectional view along the BB direction.

[0019] in, Figures 1-6 : 1-Inner metal ring; 2-Outer metal ring; 3-Rubber strip; 3a-Rubber strip body; 3b-Extension; 4-Vibration damping equipment; 5-Mounting frame. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] This invention provides an integrated rubber vibration damper that is molded in one piece. Please refer to [link / reference]. Figures 1 to 6 ,in, Figure 1 This is a top view schematic diagram of an integrated rubber vibration damper provided by this utility model. Figure 2 for Figure 1 The diagram shows a cross-sectional view of the vibration damper along line AA. Figure 4 This is a schematic diagram of the installation status of the vibration damper.

[0022] Specifically, the integrated rubber vibration damper structurally includes a metal inner ring 1, a metal outer ring 2 concentrically arranged with the metal inner ring 1, and a rubber vibration damping structure filling the annular space formed between the metal inner ring 1 and the metal outer ring 2.

[0023] In this embodiment, the rubber vibration damping structure specifically includes a plurality of rubber strips 3 evenly distributed circumferentially. For example... Figure 1 As shown, ten rubber strips 3 are provided in an exemplary manner, which are evenly distributed radially around the center of the inner metal ring 1. This arrangement can ensure that the vibration damper is subjected to uniform force in all radial directions, thereby achieving good consistency in vibration damping performance.

[0024] Combination Figure 2As shown in the figure, the internal structure of the vibration damper is clearly revealed. The inner metal ring 1 and outer metal ring 2, serving as the main load-bearing frame of the vibration damper, are preferably made of metal materials with high strength, low density, and good machinability, such as aluminum alloy or stainless steel, to achieve lightweighting while ensuring structural rigidity. The inner wall of the inner metal ring 1 is provided with mounting interfaces for installing the damped equipment.

[0025] As an optional implementation, the mounting interface can be several threaded holes machined on the inner wall of the metal inner ring 1, so as to allow the vibration damping device 4 (such as screws or other standard fasteners) to be mounted. Figure 3 (As shown) It is securely connected to it. In other implementations, the mounting interface may also be a slot, keyway, or other mechanical interface that facilitates quick assembly and disassembly.

[0026] A core technical feature of this invention is the integrated molding relationship between the rubber vibration damping structure and the metal frame.

[0027] Specifically, each rubber strip 3 is vulcanized to firmly bond to the inner wall of the outer metal ring 2 and the outer wall of the inner metal ring 1, forming a single integrated structure. This integrated structure is achieved through a manufacturing process where the surfaces to be bonded on both the inner and outer metal rings undergo rigorous pretreatment (such as degreasing and sandblasting to increase surface roughness and activity). Then, one or more layers of specialized adhesive are applied. Finally, the unvulcanized rubber material and the metal parts are placed together in a precision mold and vulcanized under high temperature and pressure. During vulcanization, the rubber material undergoes a cross-linking reaction to form an elastic solid structure. Simultaneously, the adhesive reacts chemically with the metal surface and rubber molecules at high temperatures, forming a highly strong chemical bond layer. The bonding strength achieved through this vulcanization-integrated molding process is far superior to traditional physical bonding or mechanical embedding, ensuring that under long-term, severe vibration conditions, no debonding or slippage failure modes occur between the rubber and the metal frame, thus significantly improving the reliability and service life of the vibration damper.

[0028] To optimize installation convenience and connection reliability, the rubber strip 3 in this embodiment has undergone a specific structural design. For example... Figure 3 As shown, each rubber strip 3 includes a strip body 3a and an extension 3b integrally formed with the strip body 3a. The strip body 3a is the main part that realizes the vibration damping function; its cross-section can be designed as an arc shape or other optimized shape, filling the space between the outer wall of the inner metal ring 1 and the inner wall of the outer metal ring 2 to withstand and dissipate vibration energy from the damped equipment. The extension 3b extends radially outward from the strip body 3a and folds over to cover at least a portion of the outer wall of the outer metal ring 2. The extension 3b has a relatively wide top, which can stably cover the outer wall of the outer metal ring 2, forming a ring structure that fits over the outer wall of the outer metal ring 2.

[0029] like Figure 4-6 As shown, the vibration damper is installed (taking the damped device 4 installed on the inner ring as an example). (1) Installation of the damper and the damped device 4: First, select the damped device 4 of appropriate size and specifications, and fix the damped device 4 to the metal inner ring 1 with fastening screws according to the specified torque; (2) Installation of the vibration damper and mounting frame: The shock absorber and the mounting frame 5 are connected by a pre-compression tension connection, that is, the outer metal ring 2 is embedded in the mounting frame 5, and the extension 3b on the outer mounting surface of the outer metal ring 2 is compressed to deform it, providing pressure and static friction to ensure that there is no relative movement between the shock absorber and the mounting frame 5.

[0030] Specifically, the entire shock absorber is aligned with the pre-set mounting hole on the mounting frame 5, and axial pressure is applied to press the shock absorber into the hole. During the pressing process, the elastic extension 3b is subjected to radial compression deformation due to the pressure of the inner wall of the mounting hole in the mounting frame 5. According to the Poisson effect, it attempts to expand axially (perpendicular to the compression direction). However, due to the rigid constraints of the metal outer ring 2 and the mounting frame 5, the rubber strip 3 cannot expand freely in either the axial or radial direction, resulting in radial contact pressure on the outer surface of the metal outer ring 2 and the hole wall of the mounting frame 5, which is a restoring force pointing radially outward, i.e., preload. This preload force causes the outer surface of the extension 3b to press tightly against the inner wall of the mounting hole, thereby generating a huge static friction force between them. It is this synergistic effect of the preload force generated by elastic deformation and the friction force that firmly "tightens" and locks the shock absorber within the mounting frame 5. This installation method not only simplifies the assembly process and shortens the assembly time, but also saves the space occupied by fasteners, which helps to achieve a compact overall layout of the equipment to adapt to the design trend of miniaturization and integration of modern equipment.

[0031] In addition, to address the issue of unstable performance of traditional rubber vibration dampers under extreme temperatures, the rubber damping structure (i.e., rubber strip 3) in this embodiment employs a special modified rubber material. This material is not ordinary natural rubber or nitrile rubber, but a wide-temperature-range rubber optimized at the molecular level, such as a special modified silicone rubber.

[0032] The key technology lies in introducing special polymer chains (such as rigid groups like phenyl groups) into the molecular structure of the base polymer through a polymerization process. This effectively suppresses the crystallization tendency of rubber molecular chain segments at low temperatures and improves its thermal stability at high temperatures. Macroscopically, this manifests as an extremely low rate of change in the elastic modulus of the rubber material across a wide temperature range of -55℃ to +85℃, remaining essentially stable. Therefore, vibration dampers made from this material can provide continuous, stable, and predictable vibration damping performance in both frigid environments and engine compartments near heat sources, ensuring the reliability of protected precision equipment under various harsh conditions.

[0033] The manufacturing method of this embodiment may specifically include the following steps: First, prepare the metal frame by selecting aluminum alloy bars that meet the design requirements and using machining processes such as turning and milling to produce a metal inner ring 1 and a metal outer ring 2 with precise dimensions.

[0034] Subsequently, the two surfaces to be bonded, the outer wall surface of the inner metal ring 1 and the inner wall surface of the outer metal ring 2, are pretreated, including ultrasonic degreasing with an environmentally friendly cleaning agent and sandblasting with fine-mesh alumina sand to remove the surface oxide layer and form a uniform rough surface.

[0035] Next, adhesive is applied to the bonding surfaces of the pretreated inner and outer metal rings. Specifically, a special coupling agent or primer is evenly sprayed using a precision spray gun, allowed to dry, and then a layer of main adhesive is sprayed on and allowed to dry fully again to form an active adhesive film.

[0036] Finally, compression molding and vulcanization are performed. The inner metal ring 1 and outer metal ring 2, coated with adhesive, are precisely placed in a specially designed injection or compression mold. The cavity of this mold precisely defines the shape of ten rubber strips 3 (including the strip body 3a and the extension 3b). Then, premixed, unvulcanized, specially modified silicone rubber compound is injected into the mold cavity. The mold is closed, and a set pressure (e.g., 10-15 MPa) and temperature (e.g., 165°C) are applied to the vulcanizing machine and held at that temperature for a predetermined time (e.g., 10 minutes). During this process, the rubber completes vulcanization and cross-linking, and the adhesive chemically bonds with the metal and rubber, ultimately resulting in an integrated shock absorber product with a perfect combination of rubber and metal skeleton.

[0037] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 this utility model according to the specific circumstances.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An integrated rubber vibration damper, comprising a metal outer ring, a metal inner ring, and a rubber vibration damping structure disposed between the metal inner ring and the metal outer ring, characterized in that, The rubber vibration damping structure is integrally formed with the inner wall surface of the outer metal ring and the outer wall surface of the inner metal ring by vulcanization with an adhesive.

2. The integrated rubber vibration damper according to claim 1, characterized in that, The rubber vibration damping structure includes several rubber strips, which are integrally formed with the inner wall surface of the outer metal ring and the outer wall surface of the inner metal ring by vulcanization with an adhesive.

3. The integrated rubber vibration damper according to claim 2, characterized in that, The inner wall of the metal inner ring is provided with an installation interface for installing the vibration damping equipment.

4. The integrated rubber vibration damper according to claim 2, characterized in that, The inner wall of the outer metal ring and the outer wall of the inner metal ring together form an annular cavity, and the rubber strip is uniformly or non-uniformly arranged in the annular cavity.

5. The integrated rubber vibration damper according to any one of claims 2-4, characterized in that, The rubber strip includes a strip body and an extension integrally formed with the strip body and used to cover part of the outer wall surface of the metal outer ring.

6. The integrated rubber vibration damper according to claim 5, characterized in that, The outer metal ring has several through holes, and the extension extends outward through the through holes.

7. The integrated rubber vibration damper according to claim 5, characterized in that, The cross-sectional shape of the adhesive strip body is either circular or square.

8. The integrated rubber vibration damper according to claim 1, characterized in that, The rubber vibration damping structure includes an annular rubber strip.

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