Damping shock absorber for high-precision instrument equipment

Abstract

The utility model discloses a damping shock absorber for high-precision instrument equipment, which comprises a first mounting plate, a rubber part and a second mounting plate, the rubber part is positioned between the first mounting plate and the second mounting plate, one end of the rubber part is fixed with the first mounting plate, and the other end of the rubber part is fixed with the second mounting plate. A through hole is formed in the rubber part in the axial direction, a plurality of annular grooves are formed in the inner wall of the through hole, and the annular grooves are arranged at intervals in the axial direction of the rubber part. A plurality of annular rib plates are further included, and one annular rib plate is installed in each annular groove. According to the utility model, the shock resistance and the bearing stability can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of damping and vibration reduction, in particular to a damping vibration isolator for high-precision instruments and equipment. Background Art

[0002] High-precision instruments and equipment refer to devices and equipment used to generate and measure precision quantities, including the observation, monitoring, determination, verification, recording, transmission, conversion, display, analysis, processing, and control of these quantities. High-precision instruments typically include: geometric precision instruments, thermal precision instruments, mechanical precision instruments, time and frequency precision instruments, and electromagnetic precision instruments.

[0003] High-precision instruments come in many varieties and structures. For precision measurement instruments, their structure can be divided into eight functional components: reference, sensor conversion, conversion, amplification, transmission, aiming / reading, data processing, display and recording, drive control, and mechanical structure.

[0004] Due to the particularity of the performance of high-precision instruments, when their accuracy needs to be ensured during long-term use, it is usually necessary to use vibration isolation supports to support them. The effect of environmental vibration on the accuracy of high-precision instruments can be reduced through the function of vibration isolation supports.

[0005] Traditional vibration isolation supports struggle to simultaneously meet the requirements of both load-bearing capacity and low-frequency vibration isolation. Low-frequency vibration isolation requires low stiffness, but low-stiffness, highly flexible supports often experience buckling instability under load, making it difficult to achieve both. Therefore, it is necessary to develop a vibration isolation device that can achieve low-frequency vibration isolation from ambient vibration while also ensuring high load-bearing stability and seismic resistance. Utility Model Content

[0006] The purpose of the utility model is to provide a damping vibration isolator for high-precision instruments and equipment, which can meet both the requirements of earthquake resistance and load-bearing stability.

[0007] The technical solutions to the above technical problems are as follows:

[0008] A damping vibration isolator for high-precision instruments and equipment includes a first mounting plate, a rubber member, and a second mounting plate. The rubber member is located between the first mounting plate and the second mounting plate, with one end of the rubber member fixed to the first mounting plate and the other end of the rubber member fixed to the second mounting plate. The rubber member is characterized in that a through hole is provided in the axial direction, and a plurality of annular grooves are provided on the inner wall of the through hole. The annular grooves are arranged at intervals along the axial direction of the rubber member.

[0009] It also includes a plurality of annular ribs, and an annular rib is installed in each annular groove.

[0010] In this utility model, an annular rib is installed inside the rubber component, which acts as a spring sheet. This not only absorbs vibration forces, but also serves as the framework of the rubber component, enhancing the overall strength of the damping vibration absorber and preventing deformation of the damping vibration absorber when carrying heavy objects. This ensures that the damping vibration absorber meets both seismic resistance and load-bearing stability requirements. This utility model is particularly suitable for supporting high-precision instruments and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a three-dimensional diagram of a damping shock absorber for high-precision instruments and equipment.

[0012] Figure 2 This is a cross-sectional view of a damping shock absorber for high-precision instruments and equipment.

[0013] Figure 3 is a cross-sectional view of the first mounting plate.

[0014] Figure 4 A cross-sectional view of a rubber component.

[0015] Figure 5 is a cross-sectional view of the second mounting plate.

[0016] Figure 6 This is a cross-sectional view of the annular rib.

[0017] Symbols in the accompanying drawings:

[0018] First mounting plate 1, first annular protrusion 1a, first annular groove 1b, first mounting hole 1c, first assembly hole 1d, rubber part 2, second annular protrusion 2a1, second annular groove 2b1, third annular protrusion 2a2, third annular groove 2b2, reinforcing rib 2c, second mounting plate 3, fourth annular protrusion 3a, fourth annular groove 3b, second mounting hole 3c, second assembly hole 3d, through hole 4, annular groove 5, annular rib 6, first annular protrusion 6a, first annular groove 6b, second annular protrusion 6c, second annular groove 6d, flexible column core 7, first end cover 8, second end cover 9, and clearance space 10. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0022] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0024] like Figures 1 to 6 As shown, the damping vibration isolator for high-precision instruments and equipment of the present invention comprises a first mounting plate 1, a rubber member 2, and a second mounting plate 3. The rubber member 2 is located between the first mounting plate 1 and the second mounting plate 3, and one end of the rubber member 2 is fixed to the first mounting plate 1, and the other end of the rubber member 2 is fixed to the second mounting plate 3. The material of the first mounting plate 1 and the second mounting plate 3 is preferably nylon.

[0025] A first annular protrusion 1a and a first annular groove 1b are provided on the end surface of the first mounting plate 1 facing the rubber member 2, and a second annular protrusion 2a1 and a second annular groove 2b1 are provided on the end surface of the rubber member 2 facing the first mounting plate 1. The second annular protrusion 2a1 is embedded in the first annular groove 1b, and the first annular protrusion 1a is embedded in the second annular groove 2b1.

[0026] The first annular protrusion 1a has an arcuate cross section, the first annular groove 1b is an arcuate groove, the second annular protrusion 2a1 has an arcuate cross section, and the second annular groove 2b1 is an arcuate groove.

[0027] A third annular protrusion 2a2 and a third annular groove 2b2 are provided on the end surface of the rubber member 2 facing the second mounting plate 3, and a fourth annular protrusion 3a and a fourth annular groove 3b are provided on the axial end surface of the second mounting plate 3 facing the rubber member 2. The third annular protrusion 2a2 is embedded in the fourth annular groove 3b, and the fourth annular protrusion 3a is embedded in the third annular groove 2b2.

[0028] The third annular protrusion 2a2 has an arcuate cross-section, and the third annular groove 2b2 is an arcuate groove. The fourth annular protrusion 3a has an arcuate cross-section, and the fourth annular groove 3b is an arcuate groove. This structure increases the bonding area between the first mounting plate 1 and the rubber member 2. In this embodiment, the rubber member 2 can be bonded to the first mounting plate 1 and the second mounting plate 3 using an adhesive.

[0029] The rubber member 2 is provided with an axially extending through hole 4. The inner wall of the through hole 4 is provided with a plurality of annular grooves 5, spaced apart along the axial direction of the rubber member 2. The rubber member 2 also includes a plurality of annular ribs 6, one of which is mounted within each annular groove 5. The annular ribs 6 can be made of metal; in this embodiment, stainless steel is preferred. The annular ribs 6 are mounted within the rubber member 2 and serve as its structural support.

[0030] In this embodiment, after a portion of the end surface of the annular rib 6 is raised upward to form a first annular protrusion 6a, a first annular groove 6b is formed on the lower end surface of the annular rib 6, corresponding to the first annular protrusion 6a. After a portion of the lower end surface of the annular rib 6 is raised downward to form a second annular protrusion 6c, a second annular groove 6d is formed on the upper end surface of the annular rib 6, corresponding to the second annular protrusion 6c. The shape of the annular groove 5 matches that of the annular rib 6. The annular rib 6 of this structure forms a spring leaf that not only absorbs vibration forces but also serves as the framework of the rubber component 2, enhancing the overall strength of the damping shock absorber.

[0031] The present invention further includes a flexible column core 7, a first end cap 8, and a second end cap 9. The flexible column core 7 is positioned within the through hole 4. The outer diameter of the flexible column core 7 is smaller than the inner diameter of the through hole 4, forming a clearance space 10 between the flexible column core 7 and the through hole 4. The provision of the flexible column core 7 can appropriately increase the rigidity of the product. When the rubber member 2 or the flexible column core 7 is deformed under pressure, the clearance space 10 provides space for the rubber member 2 or the flexible column core 7 to withstand the pressure.

[0032] The first mounting plate 1 is provided with a first mounting hole 1c, and the first end cap 8 is connected to the first mounting hole 1c and cooperates with one end of the flexible column core 7. The second mounting plate 3 is provided with a second mounting hole 3c, and the second end cap 9 is connected to the second mounting hole 3c and cooperates with the other end of the flexible column core 7. Threaded holes are respectively provided at both ends of the flexible column core 7. After the first end cap 8 is threadedly connected to the first mounting hole 1c, the end of the first end cap 8 is threadedly connected to the threaded hole of the flexible column core 7. After the second end cap 9 is threadedly connected to the second mounting hole 3c, the end of the second end cap 9 is threadedly connected to the threaded hole of the flexible column core 7.

[0033] In this embodiment, reinforcing ribs 2c are provided on the outer circumference of the rubber member 2 to increase its strength. Furthermore, a first assembly hole 1d is provided on the first mounting plate 1, through which high-precision equipment can be mounted. A second assembly hole 3d is provided on the third mounting plate 3, through which the second mounting plate 3 can be connected to a base such as a workbench.

[0034] When the first mounting plate 1 or the second mounting plate 3 is subjected to force, the first mounting plate 1 or the second mounting plate 3 transfers the force to the rubber part 2 and the flexible column core 7. The rubber part 2, the annular rib 6 and the flexible column core 7 absorb the force and offset the vibration force, thereby avoiding affecting high-precision instruments and equipment.

Claims

1. A damping vibration isolator for high-precision instruments and equipment, comprising a first mounting plate (1), a rubber member (2), and a second mounting plate (3), wherein the rubber member (2) is located between the first mounting plate (1) and the second mounting plate (3), and one end of the rubber member (2) is fixed to the first mounting plate (1), and the other end of the rubber member (2) is fixed to the second mounting plate (3), characterized in that: The rubber member (2) is provided with a through hole (4) along the axial direction, and a plurality of annular grooves (5) are provided on the inner wall of the through hole (4), and the annular grooves (5) are arranged at intervals along the axial direction of the rubber member (2); It also includes a plurality of annular ribs (6), and an annular rib (6) is installed in each annular groove (5).

2. The damping vibration isolator for high-precision instruments and equipment according to claim 1, characterized in that: A first annular protrusion (1a) and a first annular groove (1b) are provided on the end surface of the first mounting plate (1) facing the rubber member (2); a second annular protrusion (2a1) and a second annular groove (2b1) are provided on the end surface of the rubber member (2) facing the first mounting plate (1); the second annular protrusion (2a1) is embedded in the first annular groove (1b), and the first annular protrusion (1a) is embedded in the second annular groove (2b1).

3. The damping vibration isolator for high-precision instruments and equipment according to claim 1, characterized in that: A third annular protrusion (2a2) and a third annular groove (2b2) ​​are provided on the end surface of the rubber member (2) facing the second mounting plate (3); a fourth annular protrusion (3a) and a fourth annular groove (3b) are provided on the axial end surface of the second mounting plate (3) facing the rubber member (2); the third annular protrusion (2a2) is embedded in the fourth annular groove (3b), and the fourth annular protrusion (3a) is embedded in the third annular groove (2b2).

4. The damping vibration isolator for high-precision instruments and equipment according to claim 1, characterized in that: After a portion of the upper end surface of the annular rib plate (6) is raised upward to form a first annular protrusion (6a), a first annular groove (6b) corresponding to the first annular protrusion (6a) is formed on the lower end surface of the annular rib plate (6); After a portion of the lower end surface of the annular rib plate (6) is raised downward to form a second annular protrusion (6c), a second annular groove (6d) corresponding to the second annular protrusion (6c) is formed on the upper end surface of the annular rib plate (6); The shape of the annular groove (5) matches the shape of the annular rib (6).

5. The damping vibration isolator for high-precision instruments and equipment according to claim 1, characterized in that: It also includes a flexible column core (7), a first end cover (8), and a second end cover (9). The flexible column core (7) is located in the through hole (4). The outer diameter of the flexible column core (7) is smaller than the inner diameter of the through hole (4). A clearance space (10) is formed between the flexible column core (7) and the through hole (4). The first mounting plate (1) is provided with a first mounting hole (1c); the first end cover (8) is connected to the first mounting hole (1c) and then matched with one end of the flexible column core (7); The second mounting plate (3) is provided with a second mounting hole (3c), and the second end cover (9) is connected to the second mounting hole (3c) and matched with the other end of the flexible column core (7).

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