Metal rubber and particle damping mixed rotary vibration isolator

Abstract

The invention relates to a metal rubber and particle damping mixed rotary vibration isolator which comprises an outer shell, a pair of spring assemblies distributed up and down is arranged in the outer shell in the axial direction, and a metal rubber-particle damping container is arranged between the pair of spring assemblies. A rotating piece capable of stirring the damping particles during rotation is arranged in the metal rubber-particle damping container; a supporting shaft moving up and down in the axial direction is arranged in the outer shell, the supporting shaft penetrates through the pair of spring assemblies and the metal rubber-particle damping container, and the supporting shaft drives the rotating piece to rotate when moving up and down. The spring, the metal rubber and the damping particles are combined, the characteristics of large damping, high elasticity, good thermal stability and adjustable damping of the metal rubber are utilized, energy is dissipated in the vibration isolation process, and the effective inhibition effect on vibration is achieved; and in addition, the collision motion of the damping particles has high energy consumption, damping and adjustable mass, so that the whole vibration isolation system can effectively control low-frequency vibration in a relatively large bandwidth range.

Description

Technical Field

[0001] The invention belongs to the technical field of vibration isolation, and in particular relates to a metal rubber and particle damping mixed rotary vibration isolator. Background Art

[0002] In our daily life, vibration is almost everywhere. Some adverse vibration phenomena bring a lot of troubles to people's lives and production. For example, if the engine shakes strongly, it may cause dangerous conditions such as vehicle control failure during driving, and it will also greatly damage the comfort experience of passengers. There are many similar situations. For this reason, vibration isolation plays a vital role in many important fields such as aerospace, national defense, construction engineering, logistics and transportation. However, traditional linear vibration isolators have many difficult problems to overcome, that is, it is difficult to effectively suppress broadband vibration while suppressing characteristic line spectra; on the other hand, in the face of extremely harsh conditions, such as high temperature, low temperature, and high pressure environments, the material properties of the vibration isolator may change, resulting in a significant reduction in its vibration isolation effect. Therefore, in order to solve these problems, it has become urgent and necessary to conduct in-depth research and vigorously develop new vibration isolation technologies. Summary of the invention

[0003] The present invention makes improvements on the problems existing in the above-mentioned prior art, that is, the technical problem to be solved by the present invention is to provide a metal rubber and particle damping hybrid rotary vibration isolator.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a metal rubber and particle damping hybrid rotary vibration isolator, including a cylindrical outer shell, a pair of spring assemblies distributed up and down are arranged inside the outer shell along the axial direction, a metal rubber-particle damping container is arranged between the pair of spring assemblies, and a rotating part that can stir the damping particles when rotating is arranged inside the metal rubber-particle damping container; a support shaft that moves up and down along the axial direction is arranged inside the outer shell, and the support shaft passes through the pair of spring assemblies and the metal rubber-particle damping container, and the support shaft can drive the rotating part to rotate when it moves up and down.

[0005] Furthermore, the metal rubber-particle damping container comprises a cylindrical metal rubber inner core arranged around the outside of the support shaft, and the interior of the metal rubber inner core is filled with damping particles distributed in a ring shape.

[0006] Furthermore, the rotating member includes a rotating sleeve located inside the damping particles, and the outer peripheral side of the rotating sleeve is provided with a plurality of circumferentially evenly distributed actuating members for stirring the damping particles; the supporting shaft passes through the rotating sleeve and is threadedly connected to the rotating sleeve.

[0007] Furthermore, the outer surface of the shaft section of the support shaft located inside the metal rubber-particle damping container is provided with an external thread; and the inner peripheral side surface of the rotating sleeve is provided with an internal thread for matching with the external thread.

[0008] Furthermore, the shifting member includes a plurality of shifting pieces evenly spaced along the axial direction of the rotating sleeve, and the shifting pieces are arranged vertically.

[0009] Furthermore, the cross section of the paddle is arc-shaped.

[0010] Furthermore, the metal rubber-particle damping container also includes an upper baffle and a lower baffle which are sleeved on the outside of the support shaft, the upper baffle is fixedly connected to the top of the metal rubber inner core, and the lower baffle is fixedly connected to the bottom of the metal rubber inner core, and the middle parts of the upper baffle and the lower baffle are both equipped with bearings which are slidably sleeved on the outside of the support shaft, the bearing in the middle of the upper baffle is abutted against the top of the rotating sleeve, and the bearing in the middle of the lower baffle is abutted against the bottom of the rotating sleeve.

[0011] Furthermore, a pair of spring assemblies include an upper spring assembly and a lower spring assembly, wherein the upper spring assembly includes an upper spring which is sleeved on the outside of the support shaft and extends and retracts in the up-down direction, and the bottom of the upper spring abuts against the top of the metal rubber-particle damping container; the lower spring assembly includes a lower spring which is sleeved on the outside of the support shaft and extends and retracts in the up-down direction, and the top of the lower spring abuts against the bottom of the metal rubber-particle damping container.

[0012] Furthermore, an upper spring gasket arranged around the outside of the support shaft is fixed to the inner top surface of the outer shell, the top of the upper spring abuts against the stepped surface of the inner hole of the upper spring gasket, and an upper metal rubber gasket arranged around the outside of the support shaft is fixed to the bottom of the upper spring gasket; a lower spring gasket is fixed to the lower end of the inner wall of the outer shell, the bottom of the lower spring abuts against the stepped surface of the inner hole of the lower spring gasket, and a lower metal rubber gasket arranged around the outside of the support shaft is fixed to the top of the lower spring gasket.

[0013] Furthermore, the upper end of the support shaft passes through the top of the outer shell, and a connecting screw hole is provided on the top of the support shaft to facilitate connection with the vibration-isolated equipment; a fixed seat plate is provided at the bottom of the outer shell, and the left and right ends of the fixed seat plate are provided with fixing holes to facilitate cooperation with fasteners.

[0014] Compared with the prior art, the present invention has the following effects: the present invention is reasonably designed, combining springs, metal rubber and damping particles together, utilizing the characteristics of large damping, high elasticity, good thermal stability and damping adjustability of metal rubber to dissipate energy during the vibration isolation process and effectively suppress vibration; utilizing large pitch threads and bearings to convert vibration energy into rotational motion, thereby promoting the movement of damping particles and increasing the form of energy dissipation; coupled with the high energy consumption, damping, and adjustable mass characteristics of the collision motion generated by the mixture of low-density metal rubber and damping particles, the entire vibration isolation system can effectively control low-frequency vibrations within a larger bandwidth. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an overall stereogram of an embodiment of the present invention; Figure 2 1 is a schematic diagram of a front cross-sectional structure of an embodiment of the present invention; Figure 3 is a schematic diagram of the main structure of an embodiment of the present invention; Figure 4 is a schematic diagram of the three-dimensional structure of a rotating member in an embodiment of the present invention; Figure 5 is a schematic diagram of the connection between the rotating member and the support shaft in an embodiment of the present invention; Figure 6 Schematic diagram of the mixing of metal rubber and damping particles in an embodiment of the present invention.

[0016] In the figure: 1-outer shell; 2-upper spring assembly; 3-metal rubber-particle damping container; 4-support shaft; 5-metal rubber inner core; 6-damping particles; 7-upper partition; 8-lower partition; 9-bearing; 10-rotating sleeve; 11-external thread; 12-paddle; 13-lower spring assembly; 14-upper spring; 15-lower spring; 16-upper spring gasket; 17-upper metal rubber gasket; 18-lower spring gasket; 19-lower metal rubber gasket; 20-connecting screw hole; 21-fixed seat plate; 22-fixing hole; 23-metal wire in the metal rubber. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] like Figures 1 to 6 As shown, a metal rubber and particle damping hybrid rotary vibration isolator of the present invention comprises a vertically arranged cylindrical outer shell 1, wherein a pair of spring assemblies distributed up and down are arranged inside the outer shell 1 along the axial direction (i.e. vertical direction), the spring assembly is extended and deformed along the axial direction of the outer shell 1, a metal rubber-particle damping container 3 is arranged between the pair of spring assemblies, the metal rubber-particle damping container 3 is retained inside the outer shell 1 by applying elastic force from the upper and lower sides via a pair of spring assemblies, a rotating part is arranged inside the metal rubber-particle damping container 3, and the damping particles inside the metal rubber-particle damping container can be stirred when the rotating part rotates; a support shaft 4 that moves up and down along the axial direction is arranged inside the outer shell 1, the support shaft 4 is used to be connected to the vibration-isolated equipment, and the support shaft 4 is driven to move up and down when the vibration-isolated equipment generates vibration, the support shaft 4 slides vertically through the pair of spring assemblies and the metal rubber-particle damping container 3, and the support shaft 4 can drive the rotating part to rotate when it moves up and down. The spring, metal rubber and damping particles are combined together, and the characteristics of metal rubber such as large damping, high elasticity, good thermal stability and damping adjustability are utilized to dissipate energy during the vibration isolation process and effectively suppress vibration; coupled with the high energy dissipation, damping, and adjustable mass characteristics of the collision motion of the damping particles, the entire vibration isolation system can effectively control low-frequency vibrations within a larger bandwidth.

[0020] In this embodiment, the metal rubber-particle damping container 3 includes a cylindrical metal rubber inner core 5 arranged in an annular manner on the outside of the support shaft 4, and the interior of the metal rubber inner core 5 is filled with a plurality of damping particles 6 distributed in an annular manner on the outside of the support shaft 4. Further, the metal rubber-particle damping container 3 also includes an upper partition 7 and a lower partition 8 sleeved on the outside of the support shaft 4, the upper partition 7 is bonded and fixed to the top of the metal rubber inner core 5, and the lower partition 8 is bonded and fixed to the bottom of the metal rubber inner core 5, that is, the upper partition 7 serves as the top of the metal rubber-particle damping container 3, and the lower partition 8 serves as the bottom of the metal rubber-particle damping container 3. The cavity enclosed by the upper and lower partitions and the metal rubber inner core is used to fill the damping particles 6.

[0021] In this embodiment, the damping particles 6 are spherical, and the filling rate in the upper and lower partitions is 50-70%.

[0022] In this embodiment, the rotating member includes a rotating sleeve 10 located inside the damping particles 6, and the outer peripheral side of the rotating sleeve 10 is provided with four circumferentially evenly distributed to stir the damping particles 6; the supporting shaft 4 passes through the rotating sleeve 10 and is threadedly connected to the rotating sleeve 10. When the supporting shaft moves vertically up and down, the supporting shaft drives the rotating sleeve to rotate by means of the thread, and the rotating sleeve drives the toggle member to rotate synchronously, and the damping particles are stirred when the toggle member rotates.

[0023] In this embodiment, the middle parts of the upper partition 7 and the lower partition 8 are both installed with bearings 9 that are slidably mounted on the outside of the support shaft 4. The bearing 9 in the middle part of the upper partition 7 abuts against the top of the rotating sleeve 10, and the bearing 9 in the middle part of the lower partition 8 abuts against the bottom of the rotating sleeve 10.

[0024] In this embodiment, the outer surface of the shaft section of the support shaft 4 located inside the metal rubber-particle damping container 3 is provided with an external thread 11; the inner circumferential side surface of the rotating sleeve 10 is provided with an internal thread for matching with the external thread 11. Both the internal thread and the external thread are large-pitch threads, so that the rotating sleeve can be driven to rotate when the support shaft moves up and down.

[0025] In this embodiment, the toggle member includes three toggle pieces 12 that are evenly spaced along the axial direction of the rotating sleeve 10, and the toggle pieces 12 are vertically arranged. Furthermore, the rotating sleeve 10 and the toggle pieces 12 are both made of steel plates.

[0026] In this embodiment, the cross section of the paddle 12 is arc-shaped to prevent it from hooking with the metal rubber and damaging its work.

[0027] In this embodiment, a pair of spring assemblies includes an upper spring assembly 2 and a lower spring assembly 13. The upper spring assembly 2 includes an upper spring 14 which is sleeved on the outside of the support shaft 4 and is retracted in the up-down direction. The bottom of the upper spring 14 abuts against the upper partition 7 at the top of the metal rubber-particle damping container 3. The lower spring assembly 13 includes a lower spring 15 which is sleeved on the outside of the support shaft 4 and is retracted in the up-down direction. The top of the lower spring 15 abuts against the lower partition 8 at the bottom of the metal rubber-particle damping container 3. Furthermore, both the upper spring 14 and the lower spring 15 are compression springs, that is, in the initial state, both the upper and lower springs are in a compressed state. The metal rubber-particle damping container is maintained by the elastic force of the upper and lower springs.

[0028] In this embodiment, an upper spring gasket 16 arranged around the outside of the support shaft 4 is bonded and fixed to the inner top surface of the outer shell 1, the top of the upper spring 14 abuts against the inner hole stepped surface of the upper spring gasket 16, and an upper metal rubber gasket 17 arranged around the outside of the support shaft 4 is fixed to the bottom of the upper spring gasket 16, the bottom of the upper metal rubber gasket 17 contacts the top of the upper partition 7, and the upper metal rubber gasket can prevent the upper partition from rigidly colliding with the upper spring gasket; a lower spring gasket 18 is bonded and fixed to the lower end of the inner wall of the outer shell 1, the bottom of the lower spring 15 abuts against the inner hole stepped surface of the lower spring gasket 18, and a lower metal rubber gasket 19 arranged around the outside of the support shaft 4 is fixed to the top of the lower spring gasket 18, the top of the lower metal rubber gasket 19 contacts the bottom of the lower partition 8, and the lower metal rubber gasket can prevent the lower partition from rigidly colliding with the lower spring gasket.

[0029] In this embodiment, the metal rubber inner core 5 and the metal rubber gasket are both made of low relative density metal rubber, which has the characteristics of large porosity, good elasticity and low rigidity.

[0030] In this embodiment, the support shaft 4 is a stepped shaft, the upper large diameter shaft section of the support shaft 4 passes through the through hole at the top of the outer shell 1, and the small diameter shaft section of the support shaft 4 passes through the upper spring assembly 2, the metal rubber-particle damping container 3 and the lower spring assembly 13. Furthermore, a connecting screw hole 20 is provided on the top of the support shaft 4 to facilitate connection with the vibration isolation device.

[0031] In this embodiment, a fixing base plate 21 is provided at the bottom of the outer shell 1, and fixing holes 22 are provided at the left and right ends of the fixing base plate 21 to facilitate matching with fasteners (such as screws). When working, the outer shell is fixed to the external base through the fixing holes on both sides, and the support column is threadedly connected to the vibration-isolated equipment through the upper connecting screw holes.

[0032] It should be noted that the particle damper is a passive control technology. As a relatively new and advantageous energy-consuming vibration isolation control technology, it has very little change to the original system, greatly reducing the application cost and difficulty. Its small additional mass allows it to be used in some equipment or scenarios with strict weight requirements, and its vibration isolation band is relatively wide, which can cope with vibrations in different frequency ranges, whether it is low-frequency vibration or high-frequency vibration, and can achieve a certain vibration isolation effect. Based on such a realistic background, the present invention cleverly combines springs, metal rubbers with many excellent properties of traditional polymer rubber materials, and particle damping collision technology with unique advantages. It uses the characteristics of large damping, high elasticity, good thermal stability and damping adjustability of metal rubber to dissipate energy during the vibration isolation process and effectively suppress vibration. In addition, the particle damping collision technology has the characteristics of high energy consumption, damping, and adjustable mass, and cooperates with low-density metal rubber. The pore characteristics of metal rubber are used to make the collision form of damping particles more complex while the volume of the entire vibration isolation structure remains unchanged. By adding a rotating part to the particle damper and using the thread to convert the vibration energy into the rotational energy of the rotating part, the damping particles are further driven to move, so that the entire vibration isolation system can effectively control low-frequency vibrations within a larger bandwidth. In this way, the problem of the narrow effective bandwidth of traditional dynamic vibration isolators can be overcome, so that the vibration isolation effect can cover a wider frequency range, and the disadvantage of being unable to be used normally in harsh environments is solved, so that the vibration isolation system can adapt to various complex and harsh actual working conditions, and ensure the stable operation of related equipment and structures in vibration environments.

[0033] The present invention not only solves the problem of use under extremely harsh conditions (such as high temperature, low temperature, high pressure, oil pollution, acid and alkali corrosion and other harsh environments), but also uses metal rubber as a filling material, which can better reduce the noise generated by the collision between particles and the inner wall in the original particle damper. At the same time, the design of the rotating part overcomes the limitations of traditional particle dampers to a certain extent, such as particle accumulation leading to restricted movement, elastic collision between particles and the cavity, and limited collision energy consumption capacity. This setting significantly improves the damping performance by improving the particle movement behavior and energy dissipation mechanism, and ultimately achieves a vibration isolation effect that can cover a wider frequency range. At the same time, the vibration isolation system can adapt to various complex and harsh actual working conditions, ensuring the stable operation of related equipment and structures in a vibration environment.

[0034] In this embodiment, the assembly method of the vibration isolator specifically includes the following steps: Step A1: First, determine the stiffness of the metal rubber inner core 5, the upper metal rubber gasket 17, the lower metal rubber gasket 19, the upper spring 14 and the lower spring 15, and determine the filling rate of the damping particles; adhere the upper and lower metal rubber gaskets to the large-diameter end faces of the center holes of the upper and lower spring gaskets respectively; Step A2: Pass the bonded upper metal rubber gasket 17, upper spring gasket 16 and upper spring 14 through the small diameter end of the support shaft 4, and bond the small diameter end surface of the center hole of the upper spring gasket 16 to the inner top surface of the outer shell 1; Step A3: Pass the upper baffle 7 through the bearing 9 and the metal rubber inner core 5 from the small diameter end of the support shaft 4, invert the outer shell 1, fill it with corresponding mass damping particles 6, and pass the lower baffle 8 through the bearing 9 from the small diameter end of the support shaft 4; Step A4: Pass the lower spring 15 and the bonded lower metal rubber gasket 19 and the lower spring gasket 18 through the small diameter end of the support shaft 4, and bond the outer wall of the lower spring gasket 18 to the inner wall of the outer shell 1, ensuring that the small diameter end face of the center hole of the lower spring gasket 18 is flush with the bottom end face of the outer shell 1; Step A5: Thread the upper end of the support shaft 4 to the vibration-isolated device, and fix the outer shell 1 to the external base with screws through the fixing holes 22 on both sides.

[0035] The working method of the metal rubber and particle damping hybrid rotary vibration isolator is as follows: the support shaft 4 is directly connected to the external vibration isolation device through the connecting screw hole 21, the upper and lower springs are pre-compressed, and are more sensitive to the low-frequency and low-acceleration vibration source. After the external vibration isolation device is forced to vibrate, the vibration wave is directly transmitted to the metal rubber-damping particle container 3 through the support shaft 4. Specifically: (1) When the vibration is small, the external load is small, and the support shaft 4 moves up and down. Due to the holding effect of the upper and lower spring forces on the metal rubber-damping particle container 3 and the mass of the metal rubber-damping particle container 3 itself, the metal rubber-damping particle container 3 remains stationary, and the upper and lower partitions and the support shaft 4 are relatively displaced. When the support shaft 4 moves up and down, the large pitch thread drives the rotating sleeve 10 to rotate, and the rotating sleeve 10 drives the paddle 12 to rotate synchronously. The paddle 12 stirs the damping particles 6 inside to achieve energy dissipation and vibration isolation effects; (2) When the vibration is large, the external load is sufficient to drive the overall movement of the metal rubber-damping particle container 3. Specifically, the speed and amplitude of the up and down movement of the support shaft 4 are large (the support shaft moves up and down quickly). Since the support shaft 4 is threadedly connected to the rotating sleeve 10, and the rotating sleeve 10 is limited by the bearings 9 in the middle of the upper and lower partitions, the support shaft 4 moves at a fast speed. In addition to driving the rotating sleeve 10 to rotate by the thread, the support shaft 4 also pulls the rotating sleeve 10 up and down. The rotating sleeve 10 drives the entire metal rubber-damping particle container 3 to move synchronously. At this time The sleeve 10 has a rotational motion of moving up and down and rotating. Part of the vibration energy is converted to the metal rubber gasket and the spring for energy consumption through the squeezing effect of the partition, the metal rubber gasket and the spring. When the rotating sleeve 10 rotates, the damping particles 6 are driven to jump disorderly through the paddle 12, and the damping particles 6 also collide with the metal rubber inner core 5. Due to the pore structure of the metal rubber, a large number of damping particles will enter the metal rubber and extrude, collide and rub against the metal wire, and at the same time squeeze the metal rubber inner core and the metal rubber gasket to realize the energy friction dissipation between the metal wires.

[0036] The advantages of the present invention are: (1) Choose new materials such as metal rubber that can be used in high temperature, low temperature, radiation and other scenarios to replace traditional rubber or polyurethane materials and other buffer materials. It is suitable for different working conditions, has strong durability, long service life and long service life; (2) The present invention has multiple working modes under different vibration conditions, improves the load-bearing capacity, increases the applicable working range and controllable stiffness range, and solves the problems that the stiffness and damping of the vibration isolator cannot be adjusted and the working frequency band is narrow. ; (3) By using the rotational energy dissipation method, the movement form of the damping particles is increased, the energy dissipation efficiency of the damper is improved, and the noise generated by the accumulation of damping particles and the collision with the damper wall is reduced; (4) By utilizing the low-density metal rubber void structure, the movement of the damping particles becomes more complex under the interference of the metal wire, further consuming energy. At the same time, when the metal rubber is filled with damping particles, the friction forms become more diverse, which improves the energy consumption of the metal rubber. This enables the entire vibration isolation system to achieve more energy consumption forms without increasing the volume, thereby increasing the vibration isolation efficiency.

[0037] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).

[0038] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the present invention include states or shapes that are approximate, similar, or close to them.

[0039] Any component provided by the present invention may be assembled from a plurality of separate components, or may be a separate component manufactured by an integral forming process.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A metal rubber and particle damping hybrid rotary vibration isolator, characterized in that: It comprises a cylindrical outer shell, wherein a pair of spring assemblies are axially arranged in an up-and-down manner inside the outer shell, a metal rubber-particle damping container is arranged between the pair of spring assemblies, and a rotating part which can stir the damping particles when rotating is arranged inside the metal rubber-particle damping container; a supporting shaft which can move up and down in the axial direction is arranged inside the outer shell, and the supporting shaft passes through the pair of spring assemblies and the metal rubber-particle damping container, and the supporting shaft can drive the rotating part to rotate when moving up and down.

2. The metal rubber and particle damping hybrid rotary vibration isolator according to claim 1, characterized in that: The metal rubber-particle damping container comprises a cylindrical metal rubber inner core arranged around the outer side of a support shaft, and the interior of the metal rubber inner core is filled with damping particles distributed in an annular shape.

3. The metal rubber and particle damping hybrid rotary vibration isolator according to claim 2 is characterized in that: The rotating member comprises a rotating sleeve located inside the damping particles, and a plurality of actuating members evenly distributed in a circle and used for stirring the damping particles are arranged on the outer peripheral side of the rotating sleeve; the supporting shaft passes through the rotating sleeve and is threadedly connected with the rotating sleeve.

4. The metal rubber and particle damping hybrid rotary vibration isolator according to claim 3 is characterized in that: The outer surface of the shaft section of the support shaft located inside the metal rubber-particle damping container is provided with an external thread; the inner peripheral side surface of the rotating sleeve is provided with an internal thread for matching with the external thread.

5. The metal rubber and particle damping hybrid rotary vibration isolator according to claim 4, characterized in that: The toggle member comprises a plurality of toggle pieces evenly spaced along the axial direction of the rotating sleeve, and the toggle pieces are arranged vertically.

6. The metal rubber and particle damping hybrid rotary vibration isolator according to claim 5, characterized in that: The cross section of the plectrum is in an arc shape.

7. The metal rubber and particle damping hybrid rotary vibration isolator according to claim 3 is characterized in that: The metal rubber-particle damping container also includes an upper baffle and a lower baffle which are sleeved on the outside of the support shaft, the upper baffle is fixedly connected to the top of the metal rubber inner core, the lower baffle is fixedly connected to the bottom of the metal rubber inner core, and the middle of the upper baffle and the lower baffle are both equipped with bearings which are slidably sleeved on the outside of the support shaft, the bearing in the middle of the upper baffle abuts against the top of the rotating sleeve, and the bearing in the middle of the lower baffle abuts against the bottom of the rotating sleeve.

8. The metal rubber and particle damping hybrid rotary vibration isolator according to claim 1, characterized in that: A pair of spring assemblies include an upper spring assembly and a lower spring assembly, wherein the upper spring assembly includes an upper spring which is sleeved on the outside of a support shaft and is retracted in the up-down direction, and the bottom of the upper spring abuts against the top of a metal rubber-particle damping container; the lower spring assembly includes a lower spring which is sleeved on the outside of the support shaft and is retracted in the up-down direction, and the top of the lower spring abuts against the bottom of the metal rubber-particle damping container.

9. The metal rubber and particle damping hybrid rotary vibration isolator according to claim 8, characterized in that: An upper spring gasket arranged around the outside of the support shaft is fixed to the inner top surface of the outer shell, the top of the upper spring abuts against the stepped surface of the inner hole of the upper spring gasket, and an upper metal rubber gasket arranged around the outside of the support shaft is fixed to the bottom of the upper spring gasket; a lower spring gasket is fixed to the lower end of the inner wall of the outer shell, the bottom of the lower spring abuts against the stepped surface of the inner hole of the lower spring gasket, and a lower metal rubber gasket arranged around the outside of the support shaft is fixed to the top of the lower spring gasket.

10. The metal rubber and particle damping hybrid rotary vibration isolator according to claim 1, characterized in that: The upper end of the support shaft passes through the top of the outer shell, and a connecting screw hole is opened on the top of the support shaft to facilitate connection with the vibration-isolated equipment; a fixed seat plate is provided at the bottom of the outer shell, and the left and right ends of the fixed seat plate are provided with fixing holes to facilitate cooperation with fasteners.

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