Non-contact high-adaptability vibration absorber

Abstract

The utility model provides a non-contact high-adaptability vibration absorber which comprises a shell, a connecting plate is arranged in the shell, a vibration reduction vibrator is movably arranged in the connecting plate, an installation hole is formed in the connecting plate, a plurality of clamping grooves with different lengths are formed in the installation hole, sensors with preset threshold values are detachably installed in the clamping grooves, and the sensors are connected with the vibration reduction vibrator. And when the parameter exceeds the limit in real time, the vibration reduction vibrator is controlled to output a signal. According to the non-contact anti-collision vibration absorber, abrasion and damage caused by physical impact of a traditional vibration absorber are avoided through the non-contact anti-collision technology, the connecting plate is designed into a stepped clamping groove, the non-contact anti-collision vibration absorber can be suitable for sensors of different models and different measuring ranges, and therefore the non-contact anti-collision vibration absorber can be matched with the vibration absorbers of different models, and the applicability of the non-contact anti-collision vibration absorber is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vibration absorber technical field, concretely is a kind of non-contact high adaptive vibration absorber. BACKGROUND

[0002] In modern industry and technology field, vibration control is a key research direction, especially in precision manufacturing, transportation, aerospace and building structure etc. field. Vibration not only affects the performance and life of product, but also can cause threat to personnel safety and environment. Therefore, developing effective vibration control technology is crucial for improving system stability, reducing noise pollution and prolonging equipment life.

[0003] Traditional vibration reduction method includes using passive vibration isolator, semi-active vibration isolator, active-passive integrated vibration isolator, active vibration absorber etc. device. Most of vibration isolation devices do not consider the movement limit due to the limitation of design size and installation size, and only do rubber blocking treatment to overrun movement. These simple blocking can only play a role in avoiding impact to a certain extent, and also need timely human intervention. Therefore, mechanical limiting device cannot avoid physical contact and cause wear and damage, especially in high-frequency vibration or extreme environment, therefore, a kind of non-contact high adaptive vibration absorber is proposed to solve the above problems. SUMMARY

[0004] In view of the deficiencies of prior art, the utility model provides a kind of non-contact high adaptive vibration absorber, with the advantage of strong adaptability.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of non-contact high adaptive vibration absorber, including shell, the shell is equipped with connecting plate, connecting plate is movably equipped with vibration absorber, the connecting plate is equipped with mounting hole, mounting hole is equipped with several long and short card slot, the card slot is detachably installed with the sensor of preset threshold value, and real-time in parameter overrun, vibration absorber output signal is controlled.

[0006] Further, the sensor is a displacement sensor.

[0007] Further, the sensor is a thermal sensor.

[0008] Further, the longest card slot on the side is equipped with positioning hole.

[0009] Compared with prior art, the technical scheme of the present application has the following beneficial effects:

[0010] 1、the non-contact high adaptive vibration absorber, by non-contact anti-collision technology, avoid the wear and damage caused by physical impact of traditional vibration absorber.

[0011] 2. This non-contact, highly adaptable vibration absorber, through its stepped slot design on the connecting plate, can be used with different models and ranges of sensors, thus cooperating with different models of vibration absorbers, greatly increasing the product's applicability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0014] Figure 3 This is a three-dimensional view (front view) of the connecting plate structure of this utility model;

[0015] Figure 4 This is a three-dimensional view (top view) of the connecting plate structure of this utility model;

[0016] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0017] Figure 6 This is a cross-sectional view of the connecting plate of this utility model.

[0018] In the diagram: 1. Outer shell; 2. Aircraft connector; 3. Connecting plate; 31. Positioning hole; 32. Mounting hole; 321. Slot. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Vibration control is a key research area in modern industry and technology, particularly in precision manufacturing, transportation, aerospace, and building structures. Vibration not only affects product performance and lifespan but can also pose threats to personnel safety and the environment. Therefore, developing effective vibration control technologies is crucial for improving system stability, reducing noise pollution, and extending equipment lifespan. The vibration absorber provided in this application is a high-efficiency vibration control technology product designed to absorb and reduce mechanical vibration while ensuring that mechanical components are not damaged by excessive displacement, thereby improving the stability and safety of the entire system. Traditional vibration reduction methods include the use of passive vibration isolators, semi-active vibration isolators, integrated active and passive vibration isolators, and active vibration absorbers. These methods can reduce vibration to some extent, but they often have limitations, such as slow response speed, poor adaptability, high maintenance costs, and limited service life.

[0021] Furthermore, due to limitations in design and installation dimensions, most vibration damping devices rarely consider motion limiting, relying solely on rubber barriers to prevent excessive movement. These simple barriers only offer limited protection against impact and require timely manual intervention by disconnecting the power supply. Therefore, mechanical limiting devices cannot prevent physical contact leading to wear and damage, especially under high-frequency vibration or extreme environments. Internal impacts are unavoidable, and without timely human intervention, they can cause impact damage to the internal structure, thus affecting the overall performance of the vibration absorber.

[0022] Grooving the interior of the casing with rubber sheets in areas where impact with the moving part is possible is a common practice, often referred to as contact-type impact protection. However, since vibration absorbers are mostly installed vertically, the rubber sheets are at risk of detaching due to gravity. Detachment renders the absorber unusable, increasing system unreliability. Secondly, the grooving of the casing, with standard rubber sheets typically 1mm thick, means the grooves must be at least 1mm. Due to design limitations, the casing itself is not very thick, thus affecting its strength. Furthermore, the rubber sheets have limited effectiveness. After a resonant impact, the absorber doesn't stop automatically; it requires manual intervention, which introduces a time lag that can severely impact the equipment. Grooving actually reduces the casing's impact resistance, even with the rubber sheets providing some protection. This is only true if timely human intervention is possible. If intervention is delayed, the rubber sheets may detach under strong impact, allowing the moving part to directly impact the casing, resulting in significant damage.

[0023] Therefore, a new optimized structure is proposed to address these issues. Please refer to [link / reference]. Figures 1-6 The present application discloses a non-contact, highly adaptable vibration absorber, comprising a housing, a connecting plate inside the housing, a vibration damper movably disposed within the connecting plate, mounting holes on the connecting plate, and several slots of varying lengths within the mounting holes, wherein a sensor with a preset threshold is detachably mounted within the slots, and the sensor controls the output signal of the vibration damper in real time when the parameter exceeds the limit.

[0024] This refers to a non-contact anti-collision vibration absorber, which, without changing the original installation dimensions, adds sensors to control the movement of the moving part when it exceeds a set limit. External circuitry then intervenes before the moving part impacts the housing, preventing subsequent impact. This is also known as a non-contact anti-collision vibration absorber. Non-contact limit vibration absorbers achieve precise control and movement limitation of mechanical vibrations through a non-contact method. The core of this technology lies in using advanced sensors and electronic control technology to monitor and adjust the movement of mechanical components without physical contact, thus avoiding the wear and maintenance problems of traditional mechanical limit devices. The design of the non-contact limit vibration absorber reduces maintenance requirements while improving system reliability and service life.

[0025] In most vibration reduction environments, the requirements for vibration damping equipment are extremely stringent, especially regarding its overall dimensions. Since the vibration reduction environment is often not adjustable, the installation dimensions for the vibration damping equipment are also fixed. Therefore, optimizing the product without altering its dimensions is crucial. Vibration absorbers are widely used in active vibration damping due to their diverse shapes and ease of installation. However, most vibration absorbers were not designed with the handling of excessive movement limits in mind. Therefore, during active control, if the frequency of the vibration absorber is close to or the same as the equipment frequency, the absorber will resonate with the vibration system. This resonance will cause excessive displacement of the absorber's mover, leading to impact with the casing and damage to the mover and the internal moving structures of the absorber. Excessive impact and deformation of the moving structures within the absorber will disrupt the symmetry of the entire structure, affecting its performance; this damage is irreversible.

[0026] Considering the diversity of sensor sizes and models currently available on the market, this difference was taken into account when designing the card slot, allowing for sensor replacement as needed and greatly improving the versatility of the equipment.

[0027] As can be seen from the cross-sectional view, different length slots can be selected for sensors of different lengths to ensure that the sensor does not exceed the travel of the mover during movement, thus preventing collisions. Simultaneously, bolt positioning and fixing holes are added to the longest slot on the side to prevent the sensor from loosening, thus securing the sensor and greatly increasing the reliability of the application. This structure allows for the replacement of older versions of vibration absorbers; simply replacing the side connecting block and adjusting the aviation connector wiring enables equipment updates. This provides users with a more convenient way to upgrade their products and significantly reduces the overall cost of replacement.

[0028] Since the primary function required when using the equipment is to prevent impacts, the sensors used in this application can be replaced with various different types of sensors. Two preferred embodiments are provided here.

[0029] Example 1:

[0030] Preferably, the sensor is a displacement sensor.

[0031] This design utilizes a built-in sensor (preferably a displacement sensor) to achieve precise position detection and vibration control. Within the stroke range, it provides timely feedback on displacement signals, and when the stroke exceeds limits, it provides appropriate feedback and intervenes in the output signal promptly. This avoids damage to the device caused by delayed human response and also allows for position prediction, increasing reliability.

[0032] Example 2:

[0033] Preferably, the sensor is a thermal sensor.

[0034] Another issue arises during application: the heat generated by the vibration absorber itself is a key factor affecting the equipment's optimal performance. Currently, vibration absorbers on the market do not consider the impact of internal heat generation; instead, they rely on a temperature gun to monitor the casing during operation. However, the casing temperature differs from the temperature that the internal coils or magnets can withstand. If the internal temperature is too high, demagnetization caused by excessive heat is unavoidable and irreversible. Therefore, to address this, the sensor can be replaced with a thermal sensor to prevent demagnetization or other adverse effects caused by overheating. Furthermore, due to the special installation of the internal magnets, disassembly is extremely difficult. This means that if performance degradation occurs due to overheating, even after shutdown and cooling, performance cannot return to optimal levels. Therefore, installing a thermal sensor to monitor the internal temperature in real time allows for timely shutdown and cooling when the temperature exceeds the optimal operating temperature, ensuring component lifespan and effectiveness.

[0035] Furthermore, the longest side of the slot is provided with a positioning hole.

[0036] The sensor is easily installed and removed by screwing it onto the structure via its own threads. The sensor's wiring exits from inside the structure, so it does not affect the structure's movement. A minimum displacement monitoring value is set based on the displacement detected by the sensor; when the monitored displacement exceeds this value, an over-limit warning is issued externally, allowing for timely intervention before a collision occurs. Furthermore, due to position detection, it can predict when an external current or voltage signal is applied, preventing collisions caused by excessive current.

[0037] The sensor is housed inside the casing, modified from the original design while maintaining the same overall dimensions. The sensor is positioned at the side mover connection plate, effectively preventing potential collisions during movement. The mover stroke is 5mm, and the sensor's hole design prioritizes this stroke limitation. Therefore, the holes are designed in a stepped shape to accommodate different sensor models and ranges, thus enabling compatibility with various vibration absorbers and significantly increasing the product's applicability.

[0038] The core of this invention lies in its contactless anti-collision technology, which avoids the wear and damage caused by physical impacts in traditional vibration absorbers. Simultaneously, the stepped slot design of the connecting plate accommodates sensors of various sizes and models. By integrating a high-precision sensor, accurate detection of the distance between the mover and the housing is achieved. This technology ensures timely control intervention when the distance is too close. This invention significantly improves safety through contactless anti-collision technology, especially in high-speed or high-load applications, which is crucial for ensuring the safety of personnel and equipment. The modular design of this invention makes the vibration absorber easy to install and maintain, and facilitates integration with other systems, enhancing the product's applicability and market competitiveness. This structure allows for the replacement of older versions of vibration absorbers by simply replacing the side connecting blocks and adjusting the wiring, enabling device updates. This provides users with more convenient product upgrades and significantly reduces the overall cost of replacement.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-contact, highly adaptable vibration absorber, comprising a housing, a connecting plate disposed within the housing, and a vibration damping element movably disposed within the connecting plate, characterized in that: The connecting plate has mounting holes, and the mounting holes have several slots of different lengths. Sensors with preset thresholds are detachably installed in the slots, and the vibration damper outputs signals in real time when the parameters exceed the limits.

2. The contactless, highly adaptable vibration absorber according to claim 1, characterized in that: The sensor is a displacement sensor.

3. The contactless, highly adaptable vibration absorber according to claim 1, characterized in that: The sensor is a thermal sensor.

4. The contactless, highly adaptable vibration absorber according to claim 1, characterized in that: The longest side of the slot is provided with a positioning hole.

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