Split magnetostrictive linear displacement sensor

Abstract

The utility model discloses a split magnetostrictive linear displacement sensor, include: mounting panel, install split type shock attenuation protection sensor structure on mounting panel, the utility model relates to sensor equipment technical field, the beneficial effect of the case is: the electronic warehouse and surveying staff of the existing magnetostrictive linear displacement sensor are installed together through bolt, both are not detachable, surveying staff is loaded into the oil cylinder, and the electronic warehouse is exposed outside the oil cylinder, is close to the oil cylinder simultaneously, therefore the electronic warehouse will and surveying staff be in the same environment, and most of the equipment will be in the environment of high temperature, large water vapor when running, and the circuit board in the electronic warehouse is also influenced in this environment, and because the oil cylinder is larger when working, and the sensor body volume and weight are smaller, therefore the circuit board in the electronic warehouse is extremely vulnerable to damage by vibration.

Description

Technical Field

[0001] This utility model relates to the field of sensor equipment technology, specifically a split-type magnetostrictive linear displacement sensor. Background Technology

[0002] In the construction machinery industry, many large pieces of equipment require linear position measurement. Built-in magnetostrictive linear displacement sensors offer a perfect combination of high precision and high reliability, with a detection range from 25 to 7600 mm. Therefore, they are widely used in various environments, such as hydropower stations, steel mills and metallurgical equipment, hydraulic power equipment, and civil engineering and construction machinery. Existing magnetostrictive linear displacement sensors have their electronic housing and measuring rod bolted together, making them inseparable. The measuring rod is installed inside a hydraulic cylinder, while the electronic housing is exposed outside and in close contact with the cylinder. Therefore, the electronic housing and measuring rod are in the same environment. Since most equipment operates in high-temperature, high-humidity environments, the circuit board inside the electronic housing is also affected by this environment. Furthermore, because the hydraulic cylinder vibrates significantly during operation, and the sensor itself is small and lightweight, the circuit board inside the electronic housing is highly susceptible to damage from vibration. Summary of the Invention

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: a split-type magnetostrictive linear displacement sensor, comprising: a mounting plate on which a split-type shock-absorbing and protective sensor structure is mounted; The split-type shock-absorbing and protective sensor structure includes: a fixed platform, a pair of fixed bases, several mounting slots, a movable slide bar, a sliding block, a shock-absorbing spring, a connecting rod, a pair of fixed sleeves, a sensor electronic compartment, a protective cover, a connecting cable, and a sensor measuring rod. A mounting platform is installed on the front wall of the mounting plate. A pair of fixed bases are installed on the upper and lower positions of the front wall of the mounting platform. The fixed bases have mounting grooves at both ends. A movable slide rod is horizontally arranged in the middle of the mounting groove. A sliding support block is movably installed on the movable slide rod. A pair of shock-absorbing springs are fitted on the outside of the movable slide rod, and their ends are fixed to the inner wall of the mounting groove and the sliding support block, respectively. A connecting rod is movably installed on the sliding support block. A pair of fixed sleeves are fitted and fixed on the outside of the sensor electronic compartment. The sensor electronic compartment is movably installed on the other end of the connecting rod through the pair of fixed sleeves. The protective cover is fastened and fixed on the mounting platform. One end of the connecting cable is installed on the sensor electronic compartment, and the other end of the connecting cable is connected to the sensor measuring rod.

[0004] Preferably, the mounting plate has mounting holes.

[0005] Preferably, a pair of fixed bases are mounted on the fixed platform by fixing bolts.

[0006] Preferably, the connecting rod is connected to the sliding block and the fixed sleeve via a rotating hinge.

[0007] Preferably, the protective cover is installed on the fixed platform by means of a snap fastener.

[0008] Preferably, the sensor probe can be fixed using mounting rings of different diameters. Beneficial effects

[0009] This utility model provides a split-type magnetostrictive linear displacement sensor, which has the following advantages: This solution uses a split structure, assembling the sensor electronic compartment and measuring rod through a cable connection structure. This design allows the sensor to be flexibly installed according to different equipment and working conditions, no longer limited to the fixed installation method of an integrated structure. Separating the two parts of the sensor can avoid the electronic compartment being located in a harsh environment. Separating the electronic compartment from the hydraulic cylinder reduces the impact of hydraulic cylinder vibration on the sensor electronic compartment. Furthermore, the electronic compartment is fixed by a protective shock-absorbing structure, effectively mitigating the impact of external mechanical vibration and impact on the sensor. When the equipment vibrates or is subjected to external impact during operation, the damping spring can absorb and disperse energy, reducing the vibration transmission to the sensor's electronic compartment, thus ensuring the sensor's safety. The protective cover further prevents external substances such as dust and liquids from corroding the internal electronic components of the sensor, extending the sensor's service life. This solves the problem of existing magnetostrictive linear displacement sensors where the electronic compartment and the measuring rod are bolted together and cannot be separated. The measuring rod is installed in the hydraulic cylinder, while the electronic compartment is exposed outside the hydraulic cylinder and in close contact with it. Therefore, the electronic compartment and the measuring rod are in the same environment. Since the equipment is mostly in a high-temperature and high-humidity environment during operation, the circuit board inside the electronic compartment will also be affected by this environment. Furthermore, because the hydraulic cylinder vibrates significantly during operation, and the sensor itself is small in size and weight, the circuit board inside the electronic compartment is easily damaged by vibration. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the split-type magnetostrictive linear displacement sensor described in this utility model.

[0011] Figure 2 This is a three-dimensional structural diagram of the fixed platform of the split-type magnetostrictive linear displacement sensor described in this utility model.

[0012] Figure 3 This is a schematic diagram of the main structure of the fixed platform of the split magnetostrictive linear displacement sensor described in this utility model.

[0013] Figure 4 This is a three-dimensional structural diagram of the mounting ring of the split-type magnetostrictive linear displacement sensor described in this utility model.

[0014] In the diagram: 1-Mounting plate; 2-Fixing platform; 3-Fixing base; 4-Mounting groove; 5-Moving slide bar; 6-Sliding support block; 7-Shock damping spring; 8-Connecting rod; 9-Fixing sleeve; 10-Sensor electronic compartment; 11-Protective cover; 12-Connecting cable; 13-Sensor measuring rod; 14-Mounting fixing hole; 15-Fixing bolt; 16-Rotating hinge; 17-Mounting ring. Detailed Implementation

[0015] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Example: Please refer to Figure 1-4 A split-type magnetostrictive linear displacement sensor includes: a mounting plate 1, on which a split-type shock-absorbing and protective sensor structure is mounted; A fixed platform 2 is installed on the front wall of the mounting plate 1. A pair of fixed bases 3 are installed on the upper and lower positions of the front wall of the fixed platform 2. The fixed bases 3 have mounting grooves 4 at both ends. A movable slide rod 5 is arranged horizontally in the middle of the mounting groove 4. A sliding support block 6 is movably installed on the movable slide rod 5. A pair of shock-absorbing springs 7 are fitted on the outside of the movable slide rod 5 and are fixed at both ends to the inner wall of the mounting groove 4 and the sliding support block 6, respectively. A connecting rod 8 is movably installed on the sliding support block 6. A pair of fixed sleeves 9 are fitted and fixed on the outside of the sensor electronic compartment 10. The sensor electronic compartment 10 is movably installed on the other end of the connecting rod 8 through the pair of fixed sleeves 9. The protective cover 11 is fastened and fixed on the fixed platform 2. One end of the connecting cable 12 is installed on the sensor electronic compartment 10, and the other end of the connecting cable 12 is connected to the sensor measuring rod 13.

[0017] Mounting plate 1 serves as the base for the entire sensor installation. It has mounting holes 14. During installation, bolts and other fasteners pass through these holes 14 to securely fix mounting plate 1 to the equipment or measurement platform, providing stable support for the subsequent installation of other components. A mounting platform 2 is mounted on the front wall of mounting plate 1. A pair of mounting bases 3 are mounted on the upper and lower positions of the front wall of mounting platform 2 using fixing bolts 15. This connection method using fixing bolts 15 ensures a secure and reliable connection between the mounting bases 3 and the mounting platform 2, capable of withstanding certain external forces and preventing loosening or displacement during sensor operation. The sensor is repositioned, and each fixed base 3 has mounting grooves 4 at both ends inside. A movable slide rod 5 is horizontally arranged in the middle of the mounting groove 4. A sliding support block 6 is movably mounted on the movable slide rod 5. The sliding support block 6 can slide freely on the movable slide rod 5. When the sensor is subjected to vibration or impact, the sliding support block 6 will move on the movable slide rod 5. At this time, the damping spring 7 will undergo elastic deformation to absorb and dissipate vibration energy, thereby playing a damping role and protecting the electronic components inside the sensor from damage. A connecting rod 8 is movably mounted on the sliding support block 6 through a rotating hinge 16. A pair of fixed sleeves 9 are fitted and fixed on the outside of the sensor electronic compartment 10. The sub-compartment 10 is movably mounted on the other end of the connecting rod 8 via a pair of fixed sleeves 9 and a rotating hinge 16. The design of the rotating hinge 16 allows the connecting rod 8 to rotate relative to the sliding support block 6 and the fixed sleeves 9, further enhancing the sensor's adaptability and flexibility in all directions and enabling it to better cope with vibrations and impacts from different directions. The protective cover 11 protects the sensor's internal electronic components and mechanical structure from external environmental factors such as dust and moisture, extending the sensor's service life. The snap-on installation method makes the installation and removal of the protective cover 11 more convenient and quick, facilitating sensor maintenance and inspection. The sensor probe 13 can be fixed using mounting rings 17 of different diameters. In practical applications, depending on different measurement requirements and installation environments, a suitable diameter mounting ring 17 can be selected to fix the sensor probe 13 onto the object being measured, ensuring that the sensor probe 13 can accurately measure displacement changes. The sensor electronic housing 10 integrates the sensor's electronic circuitry for processing and transmitting measurement signals. The connecting cable 12 is responsible for transmitting the electrical signals generated by the sensor electronic housing 10 to the sensor probe 13, and can also transmit the signals fed back by the sensor probe 13 back to the sensor electronic housing 10, thus realizing the function of displacement measurement.

[0018] In the specific implementation process, furthermore, mounting plate 1 is provided with mounting and fixing holes 14.

[0019] In the specific implementation process, a pair of fixed bases 3 are further installed on the fixed platform 2 by fixing bolts 15.

[0020] In the specific implementation process, the connecting rod 8 is further connected to the sliding support block 6 and the fixed sleeve 9 through the rotating hinge seat 16.

[0021] In the specific implementation process, the protective cover 11 is further installed on the fixed platform 2 by means of a snap fastener.

[0022] In practice, the sensor rod 13 can be fixed using mounting rings 17 of different diameters.

[0023] 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 split-type magnetostrictive linear displacement sensor, comprising: Mounting plate (1), characterized in that a split-type shock absorption and protection sensor structure is mounted on the mounting plate (1); The split-type shock-absorbing and protective sensor structure includes: a fixed platform (2), a pair of fixed bases (3), several mounting slots (4), a movable slide bar (5), a sliding block (6), a shock-absorbing spring (7), a connecting rod (8), a pair of fixed sleeves (9), a sensor electronic compartment (10), a protective cover (11), a connecting cable (12), and a sensor measuring rod (13). A fixed platform (2) is installed on the front wall of the mounting plate (1). A pair of fixed bases (3) are installed on the upper and lower positions of the front wall of the fixed platform (2). The fixed bases (3) have mounting grooves (4) at both ends. A movable slide rod (5) is arranged horizontally in the middle of the mounting groove (4). A sliding block (6) is movably installed on the movable slide rod (5). A pair of shock-absorbing springs (7) are fitted on the outside of the movable slide rod (5) and both ends are fixed on the inner wall of the mounting groove (4) and the sliding block (6) respectively. A connecting rod (8) is movably installed on the sliding block (6). A pair of fixed sleeves (9) are fitted and fixed on the outside of the sensor electronic compartment (10). The sensor electronic compartment (10) is movably installed on the other end of the connecting rod (8) through a pair of fixed sleeves (9). The protective cover (11) is fastened and fixed on the fixed platform (2). One end of the connecting cable (12) is installed on the sensor electronic compartment (10), and the other end of the connecting cable (12) is connected to the sensor measuring rod (13).

2. The split-type magnetostrictive linear displacement sensor according to claim 1, characterized in that, The mounting plate (1) has mounting holes (14).

3. The split-type magnetostrictive linear displacement sensor according to claim 1, characterized in that, A pair of fixed bases (3) are mounted on the fixed platform (2) by fixing bolts (15).

4. The split-type magnetostrictive linear displacement sensor according to claim 1, characterized in that, The connecting rod (8) is connected to the sliding block (6) and the fixed sleeve (9) through the rotating hinge (16).

5. The split-type magnetostrictive linear displacement sensor according to claim 1, characterized in that, The protective cover (11) is installed on the fixed platform (2) by means of a snap fastener.

6. The split-type magnetostrictive linear displacement sensor according to claim 1, characterized in that, The sensor probe (13) can be fixed with mounting rings (17) of different diameters.

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