A distributed vibration monitoring device
Patent Information
- Application Number
- CN202522775369.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-12-29
AI Technical Summary
[0003]在振动监测系统的实际工程应用中，当前振动传感器普遍采用的固定方式主要包含两类：其一为利用单一永磁体构成的磁吸底座，其二为使用专用胶粘剂将传感器粘接于设备表面；前者虽安装便捷，但其刚性底座结构在面对工业生产中广泛存在的曲面或非平整设备外壳时，难以保证磁铁底面与设备表面完全贴合，导致有效接触面积减小、吸附力不足，容易致使监测数据中断，影响故障诊断的准确性；而后者即胶粘方式，虽能适应复杂表面，但存在安装过程繁琐、固化等待时间长、难以在恶劣表面（如油污、潮湿）实现可靠粘结、拆卸维护极其不便且易残留污染等诸多问题，无法满足临时性检测、测点快速迁移或传感器重复利用的现场需求
本实用新型通过设置滑杆可在滑孔内移动调节，从而多个永磁铁块可自由活动调节，形成多个磁吸点并非刚性固定，而是具备一定的自由调节能力，能够根据设备表面的轮廓自适应地调整各自的接触角度，当振动传感器被放置于设备平面外壳时，所有永磁铁块可同时均匀接触吸附；当置于设备曲面外壳时，各个永磁铁块能根据曲面自适应独立调整，确保尽可能多的永磁铁块与曲面实现紧密贴合，从而极大增加了有效接触面积和吸附力在空间上的分布均匀性，不仅保证了振动传感器在各种常见设备表面如平面、圆弧面上的安装牢固性，有效减少因磁吸不够稳固而导致的振动传感器移位或脱落，确保了监测数据的连续性和准确性；而且实现了快速安装与拆卸，极大地提升了在石油、煤矿等行业中对多种类、多形态设备进行临时或永久性振动监测的部署效率与适应性。
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Figure CN224851026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vibration monitoring equipment technology, and in particular to a distributed vibration monitoring device. Background Technology
[0002] In the field of industrial equipment condition monitoring and fault diagnosis, vibration monitoring has long played an indispensable and crucial role. By collecting and analyzing vibration signals generated by key equipment such as rotating machinery and reciprocating mechanisms, it is possible to effectively identify their operating status, assess trends in health degradation, and provide early warnings for typical faults such as imbalance, misalignment, bearing damage, and abnormal gear meshing. This provides a solid data foundation for implementing predictive maintenance strategies, avoiding the huge economic losses and safety risks caused by unplanned downtime. Especially in continuous production industries such as petrochemicals, coal mining, power transmission, and heavy manufacturing, ensuring the long-term stable operation of core equipment such as compressors, pumps, fans, and transmission systems is directly related to production safety and economic benefits.
[0003] In practical engineering applications of vibration monitoring systems, the commonly used fixing methods for vibration sensors mainly fall into two categories: one is a magnetic base composed of a single permanent magnet, and the other is to use special adhesives to bond the sensor to the equipment surface. Although the former is convenient to install, its rigid base structure makes it difficult to ensure that the bottom surface of the magnet is completely in contact with the equipment surface when facing curved or uneven equipment shells that are common in industrial production. This results in a reduced effective contact area and insufficient adsorption force, which can easily lead to interruption of monitoring data and affect the accuracy of fault diagnosis. The latter, namely the adhesive method, can adapt to complex surfaces, but it has many problems such as cumbersome installation process, long curing time, difficulty in achieving reliable bonding on harsh surfaces (such as oil and moisture), and inconvenience in disassembly and maintenance, as well as easy residue contamination. It cannot meet the field requirements of temporary detection, rapid relocation of measuring points, or reuse of sensors.
[0004] Therefore, it is necessary to provide a distributed vibration monitoring device to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this invention is to provide a distributed vibration monitoring device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following solution to the aforementioned technical problems: A distributed vibration monitoring device includes a main control module and multiple vibration sensing modules. Each vibration sensing module includes a vibration sensor body, the tail end of which is connected to an industrial bus. The main control module and the vibration sensing modules are electrically connected via the industrial bus. The vibration sensor body contains a vibration sensor, a signal conditioning circuit, and a communication interface. The main control module includes a power management unit and a data storage unit. The head of the vibration sensor body is connected to an end sleeve, and the end of the end sleeve is provided with a magnetic suction assembly. The magnetic suction assembly includes multiple sliding holes on the side of the end sleeve, which are equidistantly distributed. Each of the multiple sliding holes is slidably connected to a sliding rod, and a permanent magnet block is fixed to the outer end of each of the multiple sliding rods.
[0007] As a further embodiment of this utility model, a push plate is provided inside the end sleeve, which pushes and corrects the slide rod.
[0008] As a further embodiment of this utility model, a gap is provided between the edge of the push plate and the inner wall of the end sleeve, a rib is fixed on the inner wall of the end sleeve, and a groove is provided on the push plate to slide and adapt to the rib.
[0009] As a further embodiment of this utility model, the end of the convex rib is fixed with a stop block to stop and limit the push plate.
[0010] As a further embodiment of this utility model, the end sleeve is detachably connected to the vibration sensor body via a thread, and a limit ring is provided on the outer side wall of the vibration sensor body.
[0011] As a further embodiment of this invention, the vibration sensor is a triaxial MEMS accelerometer, which is connected to the signal conditioning circuit via a flexible circuit board. The main control module also includes a wireless transmission unit, which is connected to the data storage unit.
[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention features a sliding rod that allows for movement and adjustment within a sliding hole, enabling multiple permanent magnet blocks to move freely and adjust. These magnetic attraction points are not rigidly fixed but possess a degree of free adjustment capability, adaptively adjusting their contact angles according to the contours of the equipment surface. When the vibration sensor is placed on a flat outer shell, all permanent magnet blocks can simultaneously and uniformly contact and attract the sensor. When placed on a curved outer shell, each permanent magnet block can independently and adaptively adjust to the surface, ensuring that as many permanent magnet blocks as possible are tightly fitted to the curved surface. This significantly increases the effective contact area and the spatial uniformity of the attraction force, ensuring the vibration sensor's secure installation on various common equipment surfaces such as flat and curved surfaces. This effectively reduces sensor displacement or detachment due to insufficient magnetic attraction, ensuring the continuity and accuracy of monitoring data. Furthermore, it enables rapid installation and disassembly, greatly improving the deployment efficiency and adaptability for temporary or permanent vibration monitoring of various types and shapes of equipment in industries such as petroleum and coal mining. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of the vibration sensor of this utility model; Figure 2 This is a partial structural diagram of the magnetic attraction component of this utility model. Figure 1 ; Figure 3 This is a partial structural diagram of the magnetic attraction component of this utility model. Figure 2 ; Figure 4 This is a schematic diagram of the internal structure of the end sleeve of this utility model. Figure 1 ; Figure 5 This is a schematic diagram of the internal structure of the end sleeve of this utility model. Figure 2 ; Figure 6 This is a schematic diagram of the push plate and groove structure of this utility model.
[0014] The attached diagram lists the components represented by each number as follows: 1. Magnetic suction assembly; 101. Slide rod; 102. Permanent magnet block; 103. Slide hole; 104. Push plate; 105. Rib; 106. Groove; 107. Stop block; 2. End sleeve; 3. Vibration sensor body; 4. Limiting ring; 5. Industrial bus. Detailed Implementation
[0015] The present invention will be further described below with reference to the embodiments.
[0016] Please see Figure 1-6This utility model provides a distributed vibration monitoring device, including a main control module and multiple vibration sensing modules. Each vibration sensing module includes a vibration sensor body 3, with an industrial bus 5 connected to its tail end. The main control module and the vibration sensing modules are electrically connected via the industrial bus 5. The vibration sensor body 3 contains a vibration sensor, a signal conditioning circuit, and a communication interface. The main control module includes a power management unit and a data storage unit. An end sleeve 2 is connected to the head of the vibration sensor body 3, and a magnetic suction component 1 is provided at the end of the end sleeve 2. The magnetic suction component 1 includes a sliding hole 103 formed on the side of the end sleeve 2. Multiple sliding holes 103 are provided and are equidistantly distributed. Each sliding hole 103 has a sliding rod 101 slidably connected within it. A permanent magnet block 102 is fixed to the outer end of each sliding rod 101. This invention adopts a distributed architecture, connecting multiple vibration sensing modules to the main control module via an industrial bus. The vibration signals collected by the vibration sensors are processed by a signal conditioning circuit and then transmitted to the main control module via the industrial bus for vibration data monitoring. During the use of the vibration sensors, for complex equipment housings with curved or uneven surfaces, traditional rigid magnetic bases may suffer from insufficient contact area, leading to poor adhesion. Unstable adhesion affects signal acquisition quality, while adhesives have drawbacks such as cumbersome installation, difficulty in reuse, and potential contamination of the equipment surface. The innovation of this invention lies in the fact that by setting a sliding rod 101 that can move and adjust within a sliding hole 103, multiple permanent magnet blocks 102 can be freely adjusted, forming multiple magnetic attraction points that are not rigidly fixed but have a certain degree of free adjustment capability. They can adaptively adjust their contact angles according to the contour of the equipment surface. When the vibration sensor is placed on the flat outer shell of the equipment, all permanent magnet blocks 102 can simultaneously and uniformly contact and attract; when placed on the curved outer shell of the equipment, each permanent magnet block... The 102 can adaptively and independently adjust to the curved surface, ensuring that as many permanent magnet blocks as possible 102 are closely fitted to the curved surface. This greatly increases the effective contact area and the uniformity of the spatial distribution of the adsorption force. It not only ensures the firmness of the vibration sensor on the surfaces of various common equipment, such as flat and curved surfaces, and effectively reduces the displacement or detachment of the vibration sensor due to insufficient magnetic attraction, ensuring the continuity and accuracy of monitoring data, but also enables rapid installation and disassembly. This greatly improves the deployment efficiency and adaptability for temporary or permanent vibration monitoring of various types and shapes of equipment in industries such as petroleum and coal mining.
[0017] Further as Figure 4 and Figure 5As shown, it is worth noting that the end sleeve 2 is equipped with a push plate 104 inside, which pushes and corrects the slide rod 101. When the vibration sensor is removed from the curved surface and needs to be transferred to a flat surface for adsorption and fixation, the plane formed by the multiple permanent magnet blocks 102 is not flat enough. The end sleeve 2 can be removed from the vibration sensor body 3, and the push plate 104 inside the end sleeve 2 can be pushed to push the multiple slide rods 101, thereby making the permanent magnet blocks 102 aligned with each other.
[0018] Further as Figure 4 , Figure 5 and Figure 6 As shown, it is worth noting that a gap is provided between the edge of the push plate 104 and the inner wall of the end sleeve 2. A rib 105 is fixed on the inner wall of the end sleeve 2, and a groove 106 is provided on the push plate 104 to slide and adapt to the rib 105. In actual operation, the rib 105 and the groove 106 cooperate to guide and limit the movement of the push plate 104, ensuring the stability of the movement adjustment of the push plate 104.
[0019] Further as Figure 5 As shown, it is worth noting that the end of the rib 105 is fixed with a stop block 107 to stop and limit the push plate 104; in actual operation, the stop block 107 is used to prevent the push plate 104 from falling out.
[0020] Further as Figure 1 and Figure 2 As shown, it is worth noting that the end sleeve 2 is detachably connected to the vibration sensor body 3 by a thread, and a limit ring 4 is provided on the outer side wall of the vibration sensor body 3.
[0021] It is worth further elaboration that the vibration sensor employs a triaxial MEMS accelerometer, which is connected to the signal conditioning circuit via a flexible circuit board. The main control module also includes a wireless transmission unit, which is connected to the data storage unit. The triaxial MEMS accelerometer, connected to the signal conditioning circuit via the flexible circuit board, can simultaneously monitor vibration signals in three directions. The flexible circuit board has excellent vibration resistance, avoiding the solder joint breakage problem that may occur with traditional rigid circuit boards under long-term vibration conditions.
[0022] It is worth further elaboration that the signal conditioning circuit includes a filtering circuit and an amplification circuit. The filtering circuit uses a fourth-order Butterworth filter; the fourth-order Butterworth filter has a flat passband characteristic, which can effectively filter out high-frequency interference while maintaining the signal phase characteristics. The amplification circuit adopts a programmable gain design, which can adjust the gain parameters according to the vibration characteristics of different devices, ensuring the accuracy and reliability of vibration signal acquisition.
[0023] In summary, this invention, by setting a sliding rod 101 that can move and adjust within the sliding hole 103, allows multiple permanent magnet blocks 102 to move and adjust freely, forming multiple magnetic attraction points that are not rigidly fixed but have a certain degree of free adjustment capability. These points can adaptively adjust their contact angles according to the contour of the equipment surface. When the vibration sensor is placed on the flat shell of the equipment, all permanent magnet blocks 102 can simultaneously and uniformly contact and attract. When placed on the curved shell of the equipment, each permanent magnet block 102 can adaptively and independently adjust according to the curved surface, ensuring that as many permanent magnet blocks 102 as possible are tightly fitted to the curved surface. This greatly increases the effective contact area and the spatial uniformity of the attraction force distribution. It not only ensures the secure installation of the vibration sensor on various common equipment surfaces such as flat and curved surfaces, effectively reducing the displacement or detachment of the vibration sensor due to insufficient magnetic attraction, and ensuring the continuity and accuracy of monitoring data, but also achieves rapid installation and disassembly, greatly improving the deployment efficiency and adaptability for temporary or permanent vibration monitoring of various types and shapes of equipment in industries such as petroleum and coal mining.
Claims
1. A distributed vibration monitoring device, comprising a main control module and multiple vibration sensing modules, wherein each vibration sensing module includes a vibration sensor body (3), the tail end of which is connected to an industrial bus (5), and the main control module and the vibration sensing modules are electrically connected via the industrial bus (5). The vibration sensor body (3) contains a vibration sensor, a signal conditioning circuit, and a communication interface. The main control module includes a power management unit and a data storage unit. The device is characterized in that... The head of the vibration sensor body (3) is connected to an end sleeve (2), and the end of the end sleeve (2) is provided with a magnetic suction assembly (1). The magnetic suction assembly (1) includes a sliding hole (103) opened on the side of the end sleeve (2). There are multiple sliding holes (103) and the multiple sliding holes (103) are equidistantly distributed. A sliding rod (101) is slidably connected in each of the multiple sliding holes (103). A permanent magnet block (102) is fixed on the outer end of each of the multiple sliding rods (101).
2. The distributed vibration monitoring device according to claim 1, characterized in that, The end sleeve (2) is provided with a push plate (104) inside, which pushes and corrects the slide rod (101).
3. The distributed vibration monitoring device according to claim 2, characterized in that, A gap is provided between the edge of the push plate (104) and the inner wall of the end sleeve (2). A rib (105) is fixed on the inner wall of the end sleeve (2). A groove (106) is provided on the push plate (104) to slide and adapt to the rib (105).
4. The distributed vibration monitoring device according to claim 3, characterized in that, The end of the rib (105) is fixed with a stop block (107) to stop and limit the push plate (104).
5. The distributed vibration monitoring device according to claim 1, characterized in that, The end sleeve (2) is detachably connected to the vibration sensor body (3) by a thread, and a limit ring (4) is provided on the outer side wall of the vibration sensor body (3).
6. The distributed vibration monitoring device according to claim 1, characterized in that, The vibration sensor is a triaxial MEMS accelerometer, which is connected to the signal conditioning circuit via a flexible circuit board. The main control module also includes a wireless transmission unit, which is connected to the data storage unit.