Compact metal rubber vibration isolation device

Abstract

The invention relates to a compact metal rubber vibration isolation device, in particular to a compact metal rubber vibration isolation device, and belongs to the technical field of vibration isolators. According to the vibration isolation device, the force bearing piece of the turning structure is designed, serial arrangement in the vibration direction in a traditional vibration isolation device is changed into side-by-side arrangement, the size of the vibration isolation device for lifting vibration isolation object equipment is reduced in a multiplied mode, and therefore occupied space is reduced. Meanwhile, by arranging the metal rubber fixing groove, the shear force action borne by the metal rubber fixing groove is greatly reduced, meanwhile, by arranging the limiting structure, a new force transmission path is formed when a large impact load is borne, the metal rubber pad is protected, and therefore the bearing capacity of the vibration isolation device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a compact metal rubber vibration isolation device, in particular to a compact metal rubber vibration isolation device, belonging to the technical field of vibration isolators. BACKGROUND

[0002] The vibration isolation device is a key component for controlling vibration and impact in the engineering field, and is widely used in many fields such as building, rail transportation, aerospace, etc. The metal rubber is made by winding and stamping metal wire mesh, which can provide good elasticity and damping, and has the advantages of wide working temperature and strong anti-aging ability compared with traditional elastic materials. Therefore, since the 1980s, metal rubber vibration isolation devices have been widely used in various fields. The vibration isolation device can be used to isolate the equipment from the vibration environment, or to isolate the vibration source equipment from the environment to avoid vibration conduction to the environment. Both application scenarios require the vibration isolation device to be installed at the connection between the equipment and the environment, which increases the space requirement for equipment installation. Designing a compact metal rubber vibration isolation device is beneficial to reducing the space requirement for equipment installation.

[0003] At present, the existing metal rubber vibration isolation device is arranged in a structure that two metal rubber pads are used as elastic and damping elements in series along the vibration direction, a partition plate is arranged between the two metal rubber pads, the partition plate and the device main body are respectively fixed to the equipment and the environment, and the two are separated by the series metal rubber pads. When the metal rubber pads are extruded, the metal wire mesh rubs against each other to consume vibration energy, thereby achieving vibration reduction in the vibration direction. For example, a vibration reduction screw structure in the prior art has a support fixed to the equipment and a device main body fixed to the environment, and a pair of series metal rubber pads are arranged along the X direction to separate the support and the device main body, thereby achieving vibration isolation. The disadvantage of this design scheme is that the series metal rubber pads will result in a larger size of the vibration isolation device in the vibration direction. Without changing the design scheme, the thickness of the metal rubber pad can only be reduced to reduce the size, which will result in a decrease in vibration isolation performance. SUMMARY

[0004] The technical problem solved by the present application is to overcome the shortcomings of the prior art and provide a compact metal rubber vibration isolation device to achieve the purpose of reducing the size in the vibration direction.

[0005] The technical solution of the present application is: in a first aspect, a compact metal rubber vibration isolation device, comprising:

[0006] The upper shell is provided with an upper shell inner connecting hole;

[0007] The lower shell is provided with a lower shell inner connecting hole, and the lower shell and the upper shell are fixedly connected by a connecting screw passing through the upper shell inner connecting hole and the lower shell inner connecting hole;

[0008] The support base is provided with an outer metal rubber pad fixing groove and an inner metal rubber pad fixing groove; the outer metal rubber pad fixing groove forms a space for installing the outer metal rubber pad on the surface of the upper shell, and the inner metal rubber pad fixing groove forms a space for installing the inner metal rubber pad on the surface of the lower shell; the support base is installed between the upper shell and the lower shell under the support of the inner metal rubber pad and the outer metal rubber pad, and will not contact the upper shell and the lower shell unless the vibration load is too large.

[0009] The inner metal rubber pad is installed in the fixing groove formed by the inner metal rubber pad fixing groove and the lower shell.

[0010] The outer metal rubber pad is fixed in the fixing groove formed by the outer metal rubber pad fixing groove and the upper shell.

[0011] The inner metal rubber pad and the outer metal rubber pad are used to provide a supporting effect to fix the support base between the upper shell and the lower shell.

[0012] Further, the lower shell is provided with a lower shell external connection hole, the support base is provided with a support base external connection hole and an external connection hole column, and the lower shell external connection hole and the support base external connection hole are used to connect with the environment and the vibration isolation object; the method for connecting the lower shell external connection hole with the environment or the vibration isolation object is to pass a screw through the lower shell external connection hole, with the head of the screw facing the shock-absorbing device, and the threaded section being fixedly connected with the threaded hole in the environment or the vibration isolation object; the method for connecting the external connection hole with the environment or the vibration isolation object is to pass a screw through the lower shell external connection hole and the connection hole of the environment or the vibration isolation object, with the head of the screw facing the environment or the vibration isolation object, and the threaded section being fixedly connected with the external connection hole; the two external connection structures are respectively connected with the environment and the vibration isolation object to play a vibration isolation effect, and the pairing relationship is arbitrarily selected.

[0013] Further, the support base is provided with a downward limiting structure and an external connection hole column, the upper shell is provided with a lateral limiting hole, the lower shell is provided with an upward limiting structure, and the downward limiting structure and the upper shell surface, the upward limiting structure and the support base surface, and the external connection hole column and the lateral limiting hole form three-direction limiting structures.

[0014] Further, the distance from the top of the downward limiting structure to the lower surface of the upper shell controls the downward limiting stroke, which is 10% of the depth of the outer metal rubber pad fixing groove, and the distance from the upward limiting structure to the lower surface of the support base controls the upward limiting stroke, which is 10% of the depth of the inner metal rubber pad fixing groove; the external connection hole column is coaxial with the lateral limiting hole, and the distance between the outer surface of the external connection hole column and the inner surface of the lateral limiting hole controls the lateral limiting stroke, which is 10% of the difference between the inner and outer diameters r4-r3 of the outer metal rubber pad.

[0015] Further, when the vibration amplitude is less than the limiting stroke, for vertical vibration, when the support base moves upward relative to the upper shell, the force transmission path is upper shell-outer metal rubber pad-support base, and when the support base moves downward relative to the upper shell, the force transmission path is lower shell-inner metal rubber pad-support base; for lateral vibration, the force transmission path is lower shell-inner metal rubber pad-support base; when the vibration amplitude is greater than the limiting stroke, for vertical vibration, when the support base moves upward relative to the upper shell, the force transmission path is upper shell-downward limiting structure-support base, and when the support base moves downward relative to the upper shell, the force transmission path is lower shell-upward limiting structure-support base; for lateral vibration, the force transmission path is upper shell-outer connecting hole column-support base, at this time, the inner metal rubber pad or the outer metal rubber pad is compressed, and the support base and the upper shell or the lower shell form a force transmission path.

[0016] Further, in the working state of the vibration isolation device, the support base is installed between the upper shell and the lower shell under the support of the inner metal rubber pad and the outer metal rubber pad, and a rigid combination formed by the support base and the upper shell and the lower shell fixedly connected through the connecting screw moves relatively to realize vibration isolation.

[0017] Further, one side of the lower shell is normal downward, one side of the upper shell is normal upward, and the two directions are called vertical directions, and a direction parallel to the upper surface of the upper shell is a lateral direction.

[0018] Further, the inner metal rubber pad and the outer metal rubber pad have the same height and the same cross-sectional area; the depth of the inner metal rubber pad fixing groove is equal to the depth of the outer metal rubber pad fixing groove, and the height of the outer metal rubber pad is 115% of the depth of the outer metal rubber pad fixing groove.

[0019] Further, the inner diameter r1 of the inner metal rubber pad, the outer diameter r2 of the inner metal rubber pad, the inner diameter r3 of the outer metal rubber pad, and the outer diameter r4 of the outer metal rubber pad satisfy r2 2 -r1 2 =r4 2 -r3 2 .

[0020] In a second aspect, a mounting method of the compact metal rubber vibration isolation device is provided, which comprises:

[0021] The outer metal rubber pad is installed in the outer metal rubber pad fixing groove;

[0022] The support base is combined with the upper shell, and then the outer connecting hole column is used to connect with the vibration isolation object or the environment;

[0023] The inner metal rubber pad is installed in the inner metal rubber pad fixing groove, and then the lower shell is combined with the vibration isolation device;

[0024] The connecting screw is used to fixedly connect the upper shell and the lower shell;

[0025] The lower shell lower shell external connection hole is connected with the vibration isolation object or environment.

[0026] Compared with the prior art, the present application has the following advantages:

[0027] (1) The present application changes the serial arrangement along the vibration direction in the traditional vibration isolation device to parallel arrangement by designing the turning structure load bearing piece, which doubles the size of the vibration isolation device to lift the arrow load equipment, thereby reducing the space occupation.

[0028] (2) The present application greatly reduces the shear force acting on the metal rubber fixing groove, and sets a limiting structure to form a new force transmission path when bearing a large impact load, thereby protecting the metal rubber pad and improving the carrying capacity of the vibration isolation device.

[0029] (3) The present application concentrates the functions of metal rubber fixing, limiting, load transmission, connection with arrow body or arrow load equipment, and avoiding shear of metal rubber pad on three shell parts, which greatly reduces the number of parts of the vibration isolation device, thereby reducing the space occupation of the connecting parts, and at the same time makes the product installation simple and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0030] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the present application. Moreover, like reference numerals designate like parts throughout the several views in the drawings. In the drawings:

[0031] Figure 1 is a perspective view of the present application;

[0032] Figure 2 is a sectional view of the present application;

[0033] Figure 3 is a sectional view of the support seat of the present application;

[0034] Figure 4 is a structure view of the upper shell of the present application;

[0035] Figure 5 is a structure view of the lower shell of the present application;

[0036] Figure 6 is a size view of the inner metal rubber pad of the present application;

[0037] Figure 7 is a size view of the outer metal rubber pad of the present application. DETAILED DESCRIPTION

[0038] For better understanding of the above technical solutions, the following through the drawings and specific examples of the present application technical solutions are described in detail, it should be understood that the present application examples and specific features in the examples of the present application technical solutions are detailed description, and not limited to the present application technical solutions, in the case of no conflict, the present application examples and technical features in the examples can be combined with each other.

[0039] The following combining with the drawings of the present application embodiment of a compact metal rubber vibration isolation device are further described in detail. In the present application embodiment provided in the scheme, as shown in Figure 1 、 2 , including:

[0040] The upper shell 2 is provided with upper shell pair of internal connecting hole 2a and lateral limit hole 2b;

[0041] The lower shell 3 is provided with lower shell pair of internal connecting hole 3a, pair of internal connecting hole column 3b, lower shell pair of external connecting hole 3c, external metal rubber fixing groove 3d, upward limit structure 3e, through the connecting screw 4 through the upper shell pair of internal connecting hole 2a and the lower shell pair of internal connecting hole 3a, with the realization of the fixed connection of the lower shell 3 and the upper shell 2;

[0042] The support seat 1 is provided with support seat pair of external connecting hole 1a, pair of external connecting hole column 1b, external metal rubber pad fixing groove 1c, downward limit structure 1d and internal metal rubber pad fixing groove 1e. The external metal rubber pad fixing groove 1c and the surface of the upper shell 2 form the space for installing the external metal rubber pad 6, and the internal metal rubber pad fixing groove 1e and the surface of the lower shell 3 form the space for installing the internal metal rubber pad 5. The support seat is installed between the upper shell 2 and the lower shell 3 under the support of the internal metal rubber pad 5 and the external metal rubber pad 6, and will not contact the upper shell 2 and the lower shell 3 unless the vibration load is too large.

[0043] The internal metal rubber pad 5 is installed in the fixing groove composed of the internal metal rubber pad fixing groove 1e and the lower shell 3;

[0044] The external metal rubber pad 6 is fixed in the fixing groove composed of the external metal rubber pad fixing groove 1c and the upper shell 2;

[0045] The internal metal rubber pad 5 and the external metal rubber pad 6 are used to provide support and fix the support seat 1 between the upper shell 2 and the lower shell 3.

[0046] Further, as shown in Figure 4 、 Figure 5The lower housing 3 has an external connection hole 3c, and the support base 1 has an external connection hole 1a. The external connection holes 3a and 1a of the lower housing and support base are used for connection to the environment and the vibration-isolated object, respectively. To connect the lower housing to the environment or vibration-isolated object using the external connection hole 3c, a screw is passed through the external connection hole 3c, with the screw head facing inwards towards the vibration damping device, and the threaded section is fixedly connected to the threaded hole in the environment or vibration-isolated object. Similarly, to connect the support base to the environment or vibration-isolated object using the external connection hole 1a, a screw is passed through both the lower housing's external connection hole 3c and the connection hole of the environment or vibration-isolated object, with the screw head facing inwards towards the environment or vibration-isolated object, and the threaded section is fixedly connected to the external connection hole 1a of the support base. Both external connection structures need to be connected to the environment and the vibration-isolated object respectively to achieve vibration isolation, but the pairing relationship can be arbitrarily chosen.

[0047] Furthermore, in the working state of the vibration isolation device, the support base 1 is installed between the upper shell 2 and the lower shell 3, supported by the inner metal rubber pad 5 and the outer metal rubber pad 6. Because the metal rubber pads are elastic, when vibration occurs in the environment, the rigid assembly formed by the support base 1 and the upper shell 2 and lower shell 3, which is fixedly connected by connecting screws 4, undergoes relative movement. This changes the size of the installation space for the metal rubber pads, causing deformation of the metal rubber pads. The metal wire mesh inside the metal rubber pads rubs against each other, consuming vibration energy and thus achieving vibration isolation.

[0048] Furthermore, such as Figure 3 The support base 1 is provided with a downward limiting structure 1d and an external connecting hole 1b. The upper shell 2 is provided with a lateral limiting hole 2b. The lower shell 3 is provided with an upward limiting structure 3e. The downward limiting structure 1d and the surface of the upper shell 2, the upward limiting structure 3e and the surface of the support base 1, and the external connecting hole 1b and the lateral limiting hole 2b form a limiting structure in three directions.

[0049] Furthermore, the inner metal rubber pad 5 and the outer metal rubber pad 6 have the same height and equal cross-sectional area. The depth of the inner metal rubber pad fixing groove 1e is also equal to the depth of the outer metal rubber pad fixing groove 1c. The height of the metal rubber pad is 115% of the metal rubber fixing groove.

[0050] Furthermore, the inner diameter r1 and outer diameter r2 of the inner metal rubber pad 5 and the inner diameter r3 and outer diameter r4 of the outer metal rubber pad 6 satisfy r2 2 -r1 2 =r4 2 -r3 2 .

[0051] Furthermore, the distance from the top of the downward limiting structure 1d to the lower surface of the upper shell controls the downward limiting stroke, which is 10% of the depth of the outer metal rubber pad fixing groove 1c. The distance from the upper limiting structure 3e to the lower surface of the support base 1 controls the upper limiting stroke, which is 10% of the depth of the inner metal rubber pad fixing groove 1e. The external connecting hole post 1b is coaxial with the lateral limiting hole 2b, and the distance between the outer surface of the external connecting hole post 1b and the inner surface of the lateral limiting hole 2b controls the lateral limiting stroke, which is 10% of the difference between the inner and outer diameters r4-r3 of the outer metal rubber pad 6.

[0052] Furthermore, when the vibration amplitude is less than the limit stroke, for vertical vibration, when the support seat 1 moves upward relative to the upper shell 2, the force transmission path is upper shell 2 - outer metal rubber pad 6 - support seat 1; when the support seat 1 moves downward relative to the upper shell 2, the force transmission path is lower shell 3 - inner metal rubber pad 5 - support seat 1; for lateral vibration, the force transmission path is lower shell - inner metal rubber pad - support seat. At this time, the vibration isolation device has vibration isolation capability, and the principle is as described above. When the vibration amplitude is greater than the limit stroke, for vertical vibration, when the support seat 1 moves upward relative to the upper shell 2, the force transmission path is upper shell 2 - downward limit structure 1d - support seat 1; when the support seat 1 moves downward relative to the upper shell 2, the force transmission path is lower shell 3 - upward limit structure 3e - support seat 1; for lateral vibration, the force transmission path is upper shell 2 - external connecting hole column 1b - support seat 1. At this point, the metal rubber pad is compressed, forming a new force transmission path between the support base 1 and the upper shell 2 or lower shell 3. This prevents the metal rubber pad from being crushed and damaged under large impact loads, thus improving the load-bearing capacity of the vibration isolation device. In summary, depending on the vibration load, the outer metal rubber pad 6 or the inner metal rubber pad 5 is compressed, corresponding to the formation of a force transmission path between the support base 1 and the upper shell 2 or lower shell 3.

[0053] Furthermore, the vibration isolation device must be installed according to the following steps:

[0054] A. Insert the outer metal rubber pad 6 into the outer metal rubber pad fixing groove 1c;

[0055] B. Combine the support base 1 with the upper shell 2, and then use the external connection hole column 1b to connect with the vibration isolation object or environment;

[0056] C. Insert the inner metal rubber pad 5 into the inner metal rubber pad fixing groove 1e, and then combine the lower housing 3 with the vibration isolation device.

[0057] D. Use connecting screws 4 to securely connect the upper and lower housings;

[0058] E. Connect the lower housing to the external connection hole 3c with the vibration isolation object or environment.

[0059] Furthermore, the specific stiffness and damping ratio of the metal rubber pad can be adjusted by changing the winding method, stamping pressure, and density, thereby adapting to different vibration environments.

[0060] For ease of explanation, the normal direction on one side of the lower shell 3 is defined as downward, and the normal direction on one side of the upper shell 2 is defined as upward. These two directions are collectively referred to as vertical, and the direction parallel to the upper surface of the upper shell 2 is defined as lateral. In practice, the installation space orientation of this invention is arbitrary, and it can achieve isolation of vibrations in all directions. When subjected to vibration, the metal rubber fixing groove deforms, causing the metal rubber pad to deform. Friction, compression, and sliding occur between the steel wires inside the metal rubber pad, consuming the energy of the vibration and achieving the effect of vibration isolation. By guiding the force transmission path, the metal groove ensures that when subjected to vibrations in all directions, the metal rubber pad is mainly subjected to normal pressure, with minimal shear force, thus preventing rapid damage to the metal rubber pad under shear force under high load conditions. The various limiting structures work together to achieve the three-dimensional limiting function of the product. When the load is large, the limiting structures come into contact with each other, forming a new force transmission path, which protects the metal rubber pad and prevents it from being damaged under large load impacts, improving the load-bearing capacity of the structure. The clearance of the limiting structure is generally 10% of the metal rubber fixing groove.

[0061] like Figure 6 , Figure 7 As shown, the inner metal rubber pad 5 and the outer metal rubber pad 6 have the same height and equal cross-sectional area. This is ensured by controlling the inner and outer diameters (using the formula), requiring r2 to... 2 -r1 2 =r4 2 -r3 2 The cross-sectional area needs to be determined through calculation and experimentation based on the load environment, the sensitive frequency of the equipment, and the specific stiffness of the metal-rubber material.

[0062] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0063] The contents not described in detail in this specification are common knowledge to those skilled in the art.

Claims

1. A compact metal-rubber vibration isolation device, characterized in that, include: The upper housing (2) is provided with an inner connection hole (2a); The lower housing (3) is provided with a lower housing inner connection hole (3a). A connecting screw (4) passes through the upper housing inner connection hole (2a) and the lower housing inner connection hole (3a) to achieve a fixed connection between the lower housing (3) and the upper housing (2). The support base (1) is provided with an outer metal rubber pad fixing groove (1c) and an inner metal rubber pad fixing groove (1e); the outer metal rubber pad fixing groove (1c) and the surface of the upper shell (2) form a space for the installation of the outer metal rubber pad (6), and the inner metal rubber pad fixing groove (1e) and the surface of the lower shell (3) form a space for the installation of the inner metal rubber pad (5); the support base is installed between the upper shell (2) and the lower shell (3) under the support of the inner metal rubber pad (5) and the outer metal rubber pad (6), and will not contact the upper shell (2) and the lower shell (3) unless the vibration load is too large; The inner metal rubber pad (5) is installed in the fixing groove formed by the inner metal rubber pad fixing groove (1e) and the lower shell (3); The outer metal rubber pad (6) is fixed in the fixing groove formed by the outer metal rubber pad fixing groove (1c) and the upper shell (2); The inner metal rubber pad (5) and the outer metal rubber pad (6) are used to provide support and fix the support base (1) between the upper shell (2) and the lower shell (3).

2. The compact metal-rubber vibration isolation device according to claim 1, characterized in that, The lower housing (3) is provided with an external connection hole (3c), and the support base (1) is provided with an external connection hole (1a) and an external connection hole post (1b). The external connection hole (3c) of the lower housing and the external connection hole (1a) of the support base are used to connect with the environment and the vibration isolation object. The method of connecting with the environment or the vibration isolation object using the external connection hole (3c) of the lower housing is to pass a screw through the external connection hole (3c) of the lower housing, with the head of the screw facing inwards towards the vibration damping device, and the threaded section is fixedly connected with the threaded hole in the environment or the vibration isolation object. The method of connecting with the environment or the vibration isolation object using the external connection hole (1a) is to pass a screw through the external connection hole (3c) of the lower housing and the connection hole of the environment or the vibration isolation object, with the head of the screw facing inwards towards the environment or the vibration isolation object, and the threaded section is fixedly connected with the external connection hole (1a). The two external connection structures are respectively connected with the environment and the vibration isolation object to play a vibration isolation role, and the pairing relationship can be arbitrarily selected.

3. A compact metal-rubber vibration isolation device according to claim 2, characterized in that, The support base (1) is provided with a downward limiting structure (1d) and an external connecting hole post (1b). The upper shell (2) is provided with a lateral limiting hole (2b). The lower shell (3) is provided with an upward limiting structure (3e). The downward limiting structure (1d) and the surface of the upper shell (2), the upward limiting structure (3e) and the surface of the support base (1), and the external connecting hole post (1b) and the lateral limiting hole (2b) form a limiting structure in three directions.

4. A compact metal-rubber vibration isolation device according to claim 3, characterized in that, The distance from the top of the downward limiting structure (1d) to the lower surface of the upper shell (2) controls the downward limiting stroke, which is 10% of the depth of the outer metal rubber pad fixing groove (1c). The distance from the upper limiting structure (3e) to the lower surface of the support base (1) controls the upper limiting stroke, which is 10% of the depth of the inner metal rubber pad fixing groove (1e). The external connecting hole post (1b) is coaxial with the lateral limiting hole (2b). The distance between the outer surface of the external connecting hole post (1b) and the inner surface of the lateral limiting hole (2b) controls the lateral limiting stroke, which is 10% of the difference between the inner and outer diameters of the outer metal rubber pad (6), r4-r3.

5. A compact metal-rubber vibration isolation device according to claim 3, characterized in that, When the vibration amplitude is less than the limit stroke, for vertical vibration, when the support seat (1) moves upward relative to the upper shell (2), the force transmission path is upper shell (2) - outer metal rubber pad (6) - support seat (1); when the support seat (1) moves downward relative to the upper shell (2), the force transmission path is lower shell (3) - inner metal rubber pad (5) - support seat (1); for lateral vibration, the force transmission path is lower shell (3) - inner metal rubber pad (5) - support seat (1); when the vibration amplitude is greater than the limit stroke, for vertical vibration, when the support seat (1) moves upward relative to the upper shell (2), the force transmission path is lower shell (3) - inner metal rubber pad (5) - support seat (1). When the upper shell (2) moves upward, the force transmission path is upper shell (2) - downward limiting structure (1d) - support seat (1). When the support seat (1) moves downward relative to the upper shell (2), the force transmission path is lower shell (3) - upward limiting structure (3e) - support seat (1). For lateral vibration, the force transmission path is upper shell (2) - external connecting hole column (1b) - support seat (1). At this time, the inner metal rubber pad (5) or the outer metal rubber pad (6) is compressed, and a force transmission path is formed between the support seat (1) and the upper shell (2) or the lower shell (3).

6. A compact metal-rubber vibration isolation device according to claim 1, characterized in that, When the vibration isolation device is in operation, the support base (1) is installed between the upper shell (2) and the lower shell (3) under the support of the inner metal rubber pad (5) and the outer metal rubber pad (6). The rigid assembly formed by the support base (1) and the upper shell (2) and the lower shell (3) through the connecting screws (4) generates relative movement to achieve vibration isolation.

7. A compact metal-rubber vibration isolation device according to claim 1, characterized in that, The normal direction of the lower shell (3) is downward, and the normal direction of the upper shell (2) is upward. The two directions are referred to as vertical, and the direction parallel to the upper surface of the upper shell (2) is called lateral.

8. A compact metal-rubber vibration isolation device according to claim 1, characterized in that, The inner metal rubber pad (5) and the outer metal rubber pad (6) have the same height and the same cross-sectional area; the depth of the inner metal rubber pad fixing groove (1e) is equal to the depth of the outer metal rubber pad fixing groove (1c), and the height of the outer metal rubber pad (6) is 115% of the outer metal rubber pad fixing groove (1c).

9. A compact metal-rubber vibration isolation device according to claim 1, characterized in that, The inner diameter r1 and outer diameter r2 of the inner metal rubber pad (5) and the inner diameter r3 and outer diameter r4 of the outer metal rubber pad (6) satisfy r2 2 -r1 2 =r4 2 -r3 2 .

10. A method for installing a compact metal-rubber vibration isolation device as described in any one of claims 1 to 9, characterized in that, include: Insert the outer metal rubber pad (6) into the outer metal rubber pad fixing groove (1c); Combine the support base (1) with the upper shell (2), and then connect it to the vibration isolation object or environment using the external connection hole column (1b); Insert the inner metal rubber pad (5) into the inner metal rubber pad fixing groove (1e), and then combine the lower housing (3) with the vibration isolation device; Use connecting screws (4) to fix the upper housing (2) and the lower housing (3) together; Connect the lower housing (3) to the external connection hole (3c) of the lower housing to the vibration isolation object or environment.

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