A sensor structure resistant to interference in a strong vibration environment

Abstract

The utility model relates to sensor technical field especially relates to a strong vibration environment anti -interference's sensor structure. Including have mounting panel, base, rubber vibration isolator and sensor etc. are fixedly connected with base in mounting panel top, two rubber vibration isolators are symmetrically installed in base inboard, four rubber vibration isolators top are connected with same sensor. The utility model discloses the foundation vibration isolation layer formed by rubber vibration isolator, combines the synergic effect of limiting rod, baffle no. One, guide rod no. One and spring no. One, effectively overcomeed the deficiency that only single direction vibration suppression in prior art was focused on, the system can synergic management complex vibration and impact from horizontal direction, through elastic buffer and mechanical limiting, effectively suppressed the unexpected displacement and resonance phenomenon that sensor was easy to occur in strong vibration environment, thereby provided a more stable work foundation for sensor core measuring unit, reached the effect that the measurement precision was improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a sensor structure that is resistant to interference in strong vibration environments. Background Technology

[0002] In cutting-edge fields such as industrial measurement, aerospace, and defense, sensors, as core components for sensing the external environment and state, often need to perform high-precision monitoring tasks in extremely harsh environments with strong vibrations. A high-vibration environment anti-interference sensor structure designed specifically for such environments has emerged. Its core components include a mounting plate, a base, and a rubber vibration isolator as the main vibration isolation element. It aims to ensure that the internal sensitive element of the sensor can remain stable and output reliable and accurate data when subjected to severe vibrations.

[0003] Although existing sensor vibration resistance technologies have made some progress, such as the common use of simple rubber pads for isolation or the setting of rigid limits in the structure, these solutions still have obvious shortcomings. Existing technologies generally only focus on vibration suppression in a single direction and lack effective means for the coordinated management of complex multi-directional vibrations and impacts. This makes the sensor prone to resonance or unexpected displacement in real strong vibration environments, which seriously affects the measurement accuracy. Secondly, the sensor interface and external leads are rigid connection points and are often subjected to vibration transmission directly from the external leads, while traditional designs lack special protection for this. Utility Model Content

[0004] In order to overcome the shortcomings of existing sensors that mostly focus on vibration suppression in one direction and do not provide effective vibration isolation protection at the interface, this utility model provides a sensor structure that is resistant to interference in strong vibration environments.

[0005] The technical solution is as follows: A sensor structure for resisting interference in strong vibration environments includes a mounting plate, a base, rubber vibration isolators, a sensor, interfaces, limiting rods, a baffle, a guide rod, and a spring. The base is fixed to the top of the mounting plate. Two rubber vibration isolators are symmetrically installed on the inner side of the base. The top of the four rubber vibration isolators is connected to the same sensor. Four interfaces are provided on the front and rear sides of the sensor. Four limiting rods are symmetrically fixed to the top of the sensor. A baffle is fitted on the outer side of each limiting rod, and the baffle is designed in an L-shape. Four guide rods are fixed to the left and right sides of the sensor. The other end of each baffle is fitted on the outer side of the corresponding guide rod. A spring is connected between each baffle and the side of the sensor, and each spring is fitted on the outer side of the corresponding guide rod.

[0006] In addition, it is particularly preferred that the sensor also includes vibration isolation sleeves, which are fixed to the front and rear sides of the sensor at each interface.

[0007] Furthermore, it is particularly preferred that the sensor also includes a second guide rod, a second baffle, a fixed plate, and a second spring. Two second guide rods are symmetrically fixed to the top of the sensor. The same second baffle is fitted on the outer side of each of the four second guide rods. A fixed plate is fixed to the top of each second guide rod. A second spring is connected between each fixed plate and the second baffle, and each second spring is fitted on the outer side of the corresponding second guide rod.

[0008] In addition, it is particularly preferred that the baffle also includes a damping plate, the top of which is provided with a damping plate, which will reduce the vibration amplitude caused by the contact with external force.

[0009] In addition, it is particularly preferred that both the vibration isolation sleeve and the damping plate are made of silicone rubber with good vibration resistance.

[0010] Furthermore, it is particularly preferred that the mounting plate is made of a titanium alloy material with high damping, corrosion resistance, and fatigue resistance.

[0011] Compared with the prior art, the present invention has the following advantages: 1. The present invention, through the basic vibration isolation layer composed of rubber vibration isolators, combined with the synergistic effect of the limiting rod, baffle one, guide rod one and spring one, effectively overcomes the shortcomings of the prior art which only focuses on the suppression of vibration in a single direction. The system can coordinately manage complex vibrations and impacts from the horizontal direction. Through elastic buffering and mechanical limiting, it significantly suppresses the unexpected displacement and resonance phenomena that are prone to occur in the sensor in a strong vibration environment, thereby providing a more stable working foundation for the core measurement unit of the sensor and achieving the effect of improving measurement accuracy.

[0012] 2. This utility model addresses the shortcomings of existing technologies that lack effective protection for interfaces and cables by installing vibration isolation sleeves made of vibration-resistant materials such as silicone rubber at each interface of the sensor. This design can wrap and protect external connecting cables, effectively cutting off the path of vibration energy directly transmitted to the internal circuit of the sensor through rigid connecting cables. This achieves the effect of preventing signal interference or loosening of connections due to continuous vibration of interfaces and cables, and enhances the long-term reliability of signal transmission.

[0013] 3. This utility model integrates two guide rods, two baffles, two springs, and a shock-absorbing plate, which work together with a horizontal buffer system and a foundation vibration isolation layer to construct a comprehensive anti-interference system covering multiple directions and levels. This structure can effectively buffer and absorb impact energy from the vertical direction. At the same time, the use of a high-damping, corrosion-resistant titanium alloy mounting plate further enhances the stability and environmental adaptability of the entire mounting foundation. Together, they achieve the comprehensive effect of ensuring the stability of the sensor structure and maintaining accurate measurement under extremely harsh composite vibration environments. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional cross-sectional view of the base and rubber vibration isolator components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the interface and vibration isolation sleeve of this utility model.

[0017] Figure 4 This is a three-dimensional sectional view of the limiting rod and shock-absorbing plate components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the sensor and fixing plate components of this utility model.

[0019] The above-mentioned attached drawings include the following reference numerals: 1. Mounting plate, 2. Base, 3. Rubber vibration isolator, 4. Sensor, 5. Interface, 6. Vibration isolation sleeve, 7. Limiting rod, 8. Baffle one, 9. Guide rod one, 10. Spring one, 11. Guide rod two, 12. Baffle two, 13. Fixing plate, 14. Spring two, 15. Vibration damping plate. Detailed Implementation

[0020] Example:

[0021] A sensor structure resistant to interference in strong vibration environments, such as... Figures 1-5 As shown, the device includes a mounting plate 1, a base 2, rubber vibration isolators 3, a sensor 4, an interface 5, a limiting rod 7, a baffle 8, a guide rod 9, and a spring 10. The base 2 is fixedly connected to the top of the mounting plate 1. Two rubber vibration isolators 3 are symmetrically fixedly installed on the inner side of the base 2. The top of the four rubber vibration isolators 3 is connected to the same sensor 4. The sensor 4 has four interfaces 5 on its front and rear sides. Four limiting rods 7 are symmetrically fixedly connected to the top of the sensor 4. A baffle 8 is fitted on the outer side of each limiting rod 7, and the baffle 8 is L-shaped. Four guide rods 9 are fixedly connected to the left and right sides of the sensor 4. The other end of each baffle 8 is fitted on the outer side of the corresponding guide rod 9. A spring 10 is connected between each baffle 8 and the side of the sensor 4, and each spring 10 is fitted on the outer side of the corresponding guide rod 9. The mounting plate 1 is made of high-damping, corrosion-resistant, and fatigue-resistant titanium alloy.

[0022] like Figures 1-4 As shown, it also includes a vibration isolation sleeve 6, and the vibration isolation sleeve 6 is fixedly connected to the front and rear sides of the sensor 4 at each interface 5.

[0023] like Figures 1-5As shown, it also includes a second guide rod 11, a second baffle 12, a fixing plate 13, and a second spring 14. Two second guide rods 11 are symmetrically fixed to the top of the sensor 4. The same second baffle 12 is sleeved on the outside of each of the four second guide rods 11. A fixing plate 13 is fixed to the top of each second guide rod 11. A second spring 14 is connected between each fixing plate 13 and the second baffle 12. Each second spring 14 is sleeved on the outside of the corresponding second guide rod 11. It also includes a shock-absorbing plate 15. The second baffle 12 is equipped with a shock-absorbing plate 15. When it comes into contact with external force, it will reduce the vibration amplitude caused by it. The vibration isolation sleeve 6 and the shock-absorbing plate 15 are both made of silicone rubber with good vibration resistance.

[0024] When this device is needed, the entire sensor 4 structure is first fixed to the device under test or base where there is strong vibration through the mounting plate 1. When strong external vibration is transmitted to the base 2 through the mounting plate 1, the first line of vibration isolation is activated. The four rubber vibration isolators 3 symmetrically arranged on the inner side of the base 2 serve as the core vibration isolation elements, which can effectively absorb and attenuate the high-frequency vibration energy from the mounting plate 1 and prevent it from being directly transmitted to the sensor 4 body, thereby providing a preliminary stable working foundation for the sensor 4.

[0025] When dealing with horizontal vibrations and impacts, the multi-directional limiting and buffering mechanism of this structure plays a key role. The four limiting rods 7 symmetrically fixed to the top of the sensor 4 and the L-shaped baffle 8 sleeved on its outer side together constitute the horizontal displacement constraint mechanism. When the sensor 4 has a large displacement tendency in the horizontal plane, the inner side wall of the L-shaped baffle 8 will contact the limiting rods 7 to limit its further movement. At the same time, the guide rods 9 fixed to the left and right sides of the sensor 4 and the springs 10 sleeved on its outer side are connected to the baffle 8 to form an elastic reset system. The springs 10 can buffer the horizontal impact and provide a restoring force after the impact, causing the sensor 4 to return to the central equilibrium position, effectively avoiding the unexpected drift of the sensor 4 due to horizontal vibration or rigid collision with the surrounding structure.

[0026] To further protect the top of sensor 4 from potential vertical impacts or foreign object collisions, a secondary buffer mechanism is added to the top of sensor 4. Two guide rods 11 symmetrically fixed to the top of sensor 4, and a single baffle 12 sleeved on the outside of all guide rods 11, constitute the upper protective and buffer layer. A spring 14 connects the fixed plate 13 fixed to the top of each guide rod 11 and the baffle 12, allowing the baffle 12 to elastically displace relative to the sensor 4 body in the vertical direction. When the damping plate 15 on the top of the baffle 12 is subjected to an impact or pressure from above, the spring 14 is compressed, absorbing the impact energy and greatly reducing the vertical vibration and impact load transmitted to the sensor 4 body.

[0027] To address the traditionally weak link of sensor 4 interface 5, this structure also incorporates a specialized vibration isolation design. At each interface 5 on the front and rear sides of sensor 4, a vibration isolation sleeve 6 made of highly resistant silicone rubber is fixedly attached. These vibration isolation sleeves 6 can wrap around and protect the external cables connected to interface 5, cutting off the path of vibration transmitted directly to the internal circuitry of sensor 4 through rigid cables. This effectively prevents signal interference or loosening caused by vibration of interface 5 and cables, ensuring the stability of signal transmission.

[0028] In summary, this device utilizes the basic vibration isolation of the rubber vibration isolator 3, combined with a multi-directional horizontal buffer limiting system consisting of a limiting rod 7, a baffle 8, a guide rod 9, and a spring 10, and a vertical buffer system consisting of a guide rod 11, a baffle 12, a spring 14, and a damping plate 15, supplemented by the vibration isolation sleeve 6 at the interface 5, to jointly construct a comprehensive and multi-layered anti-interference system. In addition, the mounting plate 1 is made of titanium alloy material with high damping, corrosion resistance, and fatigue resistance, which further enhances the stability and durability of the structural base 2 itself, thereby ensuring that the sensor 4 can still maintain stable installation and accurate measurement in extremely harsh high vibration environments.

Claims

1. A sensor structure for resisting interference in strong vibration environments, characterized in that, The system includes a mounting plate (1), a base (2), rubber vibration isolators (3), a sensor (4), an interface (5), a limit rod (7), a baffle (8), a guide rod (9), and a spring (10). The mounting plate (1) is fixed to the top of the base (2). Two rubber vibration isolators (3) are symmetrically installed on the inner side of the base (2). The top of the four rubber vibration isolators (3) is connected to the same sensor (4). The sensor (4) has four interfaces (5) on both the front and rear sides. Four limiting rods (7) are symmetrically fixed to the top. Each limiting rod (7) is fitted with a baffle (8) on the outside. The baffle (8) is L-shaped. Four guide rods (9) are fixed to the left and right sides of the sensor (4). The other end of each baffle (8) is fitted on the outside of the corresponding guide rod (9). Each baffle (8) is connected to the side of the sensor (4) with a spring (10). Each spring (10) is fitted on the outside of the corresponding guide rod (9).

2. The sensor structure for resisting interference in strong vibration environments according to claim 1, characterized in that, It also includes a vibration isolation sleeve (6), and the front and rear sides of the sensor (4) are fixed with vibration isolation sleeves (6) at each interface (5).

3. The sensor structure for resisting interference in strong vibration environments according to claim 2, characterized in that, It also includes a second guide rod (11), a second baffle (12), a fixed plate (13) and a second spring (14). The sensor (4) has two second guide rods (11) symmetrically fixed to the top. The same second baffle (12) is fitted on the outside of each of the four second guide rods (11). A fixed plate (13) is fixed to the top of each second guide rod (11). A second spring (14) is connected between each fixed plate (13) and the second baffle (12). Each second spring (14) is fitted on the outside of the corresponding second guide rod (11).

4. The sensor structure for resisting interference in strong vibration environments according to claim 3, characterized in that, It also includes a damping plate (15). The top of the baffle (12) is provided with a damping plate (15), which will reduce the vibration amplitude caused by the contact with external force.

5. A sensor structure for resisting interference in strong vibration environments according to claim 4, characterized in that, Both the vibration isolation sleeve (6) and the damping plate (15) are made of silicone rubber with good vibration resistance.

6. The sensor structure for resisting interference in strong vibration environments according to claim 5, characterized in that, The mounting plate (1) is made of titanium alloy with high damping, corrosion resistance and fatigue resistance.

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