Large rotating equipment health monitoring device

Abstract

The invention relates to a large rotating equipment health monitoring device which comprises a base, the bottom of the base is provided with a guide rod and a supporting plate, the upper portion of the guide rod is slidably sleeved with a first lifting plate, the lower portion of the guide rod is slidably sleeved with a second lifting plate, the vertical portion of the first lifting plate is fixedly connected with a first rack downwards, and the vertical portion of the second lifting plate is fixedly connected with a second rack upwards. A first rotating shaft is rotationally arranged on the lower portion of the supporting plate, the rear end of the first rotating shaft is in transmission connection with a first motor, the front end of the first rotating shaft is fixedly connected with a gear, and the first rack and the second rack are located on the left side and the right side of the gear and meshed with the gear. The bottom of the tail end of the horizontal part of the first lifting plate and the top of the tail end of the horizontal part of the second lifting plate are each provided with a magneto-rheological clamping plate. The whole machine is more convenient to disassemble and assemble according to actual requirements, the monitoring position can be flexibly adjusted, and use is more flexible and convenient.

Description

Technical Field

[0001] The invention belongs to the field of monitoring technology, and in particular relates to a health monitoring device for large rotating equipment. Background Art

[0002] At present, the health monitoring of rotating equipment mainly includes multiple items such as rotation speed, vibration, and temperature. Among them, when conducting health monitoring in terms of vibration and temperature, monitoring equipment including vibration sensors, temperature sensors, and control centers are mostly used. However, in actual use, the entire monitoring equipment is mostly fixed directly on the rotating equipment, resulting in a fixed monitoring position that cannot meet actual needs. It is also not convenient to quickly install and disassemble the monitoring equipment before and after monitoring. The use is not flexible and convenient, and has great limitations that need to be solved. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a large rotating equipment health monitoring device, which is easier to disassemble and assemble according to actual needs and can flexibly adjust the monitoring position to solve the above problems.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a large-scale rotating equipment health monitoring device, including a base, a guide rod and a support plate are vertically fixed on the bottom of the base, the upper sliding sleeve of the guide rod is provided with an L-shaped first lifting plate, and the lower sliding sleeve is provided with an L-shaped second lifting plate, the vertical part of the first lifting plate faces downward and is fixedly connected to a first rack, the vertical part of the second lifting plate faces upward and is fixedly connected to a second rack, a first rotating shaft is horizontally penetrated and rotatably provided on the lower part of the support plate, the rear end of the first rotating shaft is transmission-connected to a first motor, and the front end is coaxially fixedly connected to a gear, the first rack and the second rack are respectively located on the left and right sides of the gear and are both meshed with the gear, a through groove for the first rack to pass through is opened at the position of the horizontal part of the second lifting plate corresponding to the first rack, and a magnetorheological fluid is fixedly provided on the bottom of the tail end of the horizontal part of the first lifting plate and the top of the tail end of the horizontal part of the second lifting plate The left end of the second shaft is connected with the second motor, and the right end of the second shaft is connected with the second motor through the cam.

[0005] Preferably, the magnetorheological clamp includes a substrate, which is fixedly connected to the corresponding first lifting plate or the second lifting plate, an electromagnetic coil is embedded on the peripheral side of the substrate, a pressure sensor is embedded on the end of the substrate away from the corresponding first lifting plate or the second lifting plate, the peripheral side of the substrate and the side away from the corresponding first lifting plate or the second lifting plate are wrapped with a magnetorheological elastomer, the tail end of the pressure sensor extends into the corresponding magnetorheological elastomer, and the electromagnetic coil and the pressure sensor are both electrically connected to the control center.

[0006] Preferably, a T-shaped sliding block is fixedly provided on the top of the movable frame, and a matching sliding groove is provided on the bottom of the top plate corresponding to the sliding block, and the sliding block is slidably arranged in the sliding groove.

[0007] Preferably, the slide seat is adapted to the moving frame.

[0008] Preferably, the base is made of foamed aluminum.

[0009] Preferably, limit plates are fixedly sleeved on both upper and lower ends of the guide rod.

[0010] The beneficial effects of the present invention are as follows: 1. The installation and disassembly of the entire monitoring device are more convenient, and it can be flexibly installed and used at different positions of a variety of different rotating equipment, and the monitoring range is wider: when installing the monitoring device, the first motor can be operated to drive the gear to rotate counterclockwise, thereby driving the first lifting plate and the first rack to move down, and the second lifting plate and the second rack to move up, so that the two magnetorheological clamps are close to each other until the two magnetorheological clamps are pressed and clamped to the upper and lower sides of the appropriate monitoring position of the corresponding rotating equipment, and the monitoring device is firmly clamped in the corresponding position through the characteristics of the magnetorheological clamps. When disassembling the monitoring device, the first motor can be operated again to drive the gear to rotate clockwise, thereby driving the first lifting plate and the first rack to move up, and the second lifting plate and the second rack to move down, so that the two magnetorheological clamps are moved away from each other and restored, and can be disassembled from the rotating equipment. In this way, through the two magnetorheological plate clamps that can approach and move away from each other, the installation and disassembly of the entire monitoring device can be more convenient, and it can be flexibly installed and used at different positions of a variety of different rotating equipment, with a wider monitoring range, making the overall use of the device more flexible and convenient; 2. After the monitoring device is installed, the horizontal and vertical positions of the monitoring can still be flexibly adjusted: running the second motor can drive the corresponding sprocket and chain to rotate, thereby driving the slide and the moving frame to move forward as a whole. When the slide moves to the lower side of the sprocket with the chain, the slide can slide down to the lower part of the moving frame, so that when the slide continues to move backward with the chain, it can continue to drive the moving frame to move backward, thereby realizing flexible adjustment of the horizontal and vertical positions of the monitoring. After the adjustment is in place, the hydraulic cylinder can be operated, and the horizontal and horizontal positions of the monitoring can be flexibly adjusted by controlling the length of the piston rod. After the adjustment is in place, the vibration and temperature parameters of the corresponding rotating equipment can be monitored in real time through the acceleration sensor and the temperature sensor, and the obtained data can be fed back to the control center to realize the monitoring operation. In this way, the monitoring position is more flexible and changeable, and can better meet actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the main structure of the present invention when two magnetorheological clamping plates are close to each other; Figure 3 It is a schematic diagram of the top view of the first rack, the second rack and the gear of the present invention; Figure 4 It is a schematic diagram of the main structure of the magnetorheological clamping plate of the present invention; Figure 5 It is a schematic diagram of the main structure of the side plate and the top plate of the present invention; Figure 6 It is a left-side structural schematic diagram of the side plate and the top plate of the present invention.

[0012] Numbers in the figure: 1 is a base, 2 is a guide rod, 3 is a support plate, 4 is a first lifting plate, 5 is a second lifting plate, 6 is a first rack, 7 is a second rack, 8 is a first rotating shaft, 9 is a first motor, 10 is a gear, 11 is a through slot, 12 is a magnetorheological clamping plate, 13 is a side plate, 14 is a second rotating shaft, 15 is a second motor, 16 is a sprocket, 17 is a chain, 18 is a top plate, 19 is a control center, 20 is a moving frame, 21 is a slide seat, 22 is a connecting rod, 23 is a support seat, 24 is a hydraulic cylinder, 25 is a movable plate, 26 is an acceleration sensor, 27 is a temperature sensor, 28 is a substrate, 29 is an electromagnetic coil, 30 is a pressure sensor, 31 is a magnetorheological elastomer, 32 is a slider, 33 is a slide groove, and 34 is a limit plate. DETAILED DESCRIPTION

[0013] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: like Figures 1 to 6As shown, a large rotating equipment health monitoring device comprises a base 1, a guide rod 2 and a support plate 3 are vertically fixed on the bottom of the base 1, an upper sliding sleeve of the guide rod 2 is provided with an L-shaped first lifting plate 4, and a lower sliding sleeve is provided with an L-shaped second lifting plate 5, the vertical part of the first lifting plate 4 faces downward and is fixedly connected to a first rack 6, and the vertical part of the second lifting plate 5 faces upward and is fixedly connected to a second rack 7, a first rotating shaft 8 is horizontally penetrated and rotatably provided on the lower part of the support plate 3, the rear end of the first rotating shaft 8 is transmission-connected to a first motor 9, and the front end is coaxially fixedly connected to a gear 10, the first rack 6 and the second rack 7 are respectively located on the left and right sides of the gear 10 and are both meshed and connected with the gear 10. A through slot 11 for the first rack 6 to pass through is opened at the position corresponding to the first rack 6 on the horizontal part of the second lifting plate 5, and a magnetorheological clamp 12 is fixedly provided on the bottom of the tail end of the horizontal part of the first lifting plate 4 and the top of the tail end of the horizontal part of the second lifting plate 5. A side plate 13 is fixed vertically on the right side of the top of the base 1. A second rotating shaft 14 is horizontally penetrated and rotatably provided on both the front and rear ends of the side plate 13 in the left and right directions. The right end of one of the second rotating shafts 14 is connected to a second motor 15 in a transmission manner. The left ends of the two second rotating shafts 14 are coaxially fixedly connected to sprockets 16. The two sprockets 16 are connected to the same chain 17 in a transmission manner. A top plate 18 is fixedly connected to the top of the side plate 13 facing leftward. A control center 19 is provided on the top of the top plate 18. A rectangular moving frame 20 is slidably provided on the left side of the bottom in the front and rear directions. A sliding seat 21 is provided on the inner side of the moving frame 20 in an up-and-down sliding manner. The right side of the sliding seat 21 is fixedly connected to the chain 17 through a connecting rod 22. A support seat 23 is fixedly provided on the left side of the moving frame 20. A hydraulic cylinder 24 is horizontally fixedly provided on the left side of the support seat 23. The piston rod of the hydraulic cylinder 24 faces the left side and is fixedly connected to a movable plate 25. An acceleration sensor 26 and a temperature sensor 27 are fixedly provided on the left side of the movable plate 25. The first motor 9, the second motor 15, the hydraulic cylinder 24, the acceleration sensor 26 and the temperature sensor 27 are all electrically connected to the control center 19; The installation and disassembly of the entire monitoring device is more convenient, and it can be flexibly installed and used at different positions of a variety of different rotating equipment, with a wider monitoring range: when installing the monitoring device, the first motor 9 can be operated to drive the gear 10 to rotate counterclockwise, thereby driving the first lifting plate 4 and the first rack 6 to move down, and the second lifting plate 5 and the second rack 7 to move up, so that the two magnetorheological clamps 12 are close to each other until the two magnetorheological clamps 12 are pressed and clamped to the upper and lower sides of the appropriate monitoring position of the corresponding rotating equipment, and the monitoring device is firmly clamped at the corresponding position through the characteristics of the magnetorheological clamps 12. When disassembling the monitoring device, the first motor 9 can be operated again to drive the gear 10 to rotate clockwise, thereby driving the first lifting plate 4 and the first rack 6 to move up, and the second lifting plate 5 and the second rack 7 to move down, so that the two magnetorheological clamps 12 are moved away from each other and restored, and then they can be disassembled from the rotating equipment. Thus, the installation and disassembly of the whole monitoring device can be made more convenient by the two magnetic flow plate clamps 12 that can move closer to and farther from each other, and the device can be flexibly installed and used at different positions of various rotating equipment, with a wider monitoring range, making the overall use of the device more flexible and convenient; after the monitoring device is installed, the horizontal lateral and longitudinal positions of the monitoring can still be flexibly adjusted: the second motor 15 can be driven to rotate the corresponding sprocket 16 and the chain 17, thereby driving the slide 21 and the moving frame 20 to move forward as a whole, and when the slide 21 moves to the lower side of the sprocket 16 with the chain 17, the slide 21 can slide down in the moving frame 20 to the lower part of the moving frame 20, so that when the slide 21 continues to move backward with the chain 17, it can continue to drive the moving frame 20 to move backward, thereby realizing the flexible adjustment of the horizontal longitudinal position of the monitoring. After the adjustment is in place, the hydraulic cylinder 24 can be operated, and the horizontal lateral position of the monitoring can be flexibly adjusted by controlling the length of the telescopic piston rod. After the adjustment is in place, the vibration and temperature parameters of the corresponding rotating equipment can be monitored in real time through the acceleration sensor 26 and the temperature sensor 27, and the obtained data can be fed back to the control center 19 to realize the monitoring operation. In this way, the monitoring position is more flexible and can better meet the actual needs. The first motor 9, the second motor 15, the control center 19, the hydraulic cylinder 24, the acceleration sensor 26 and the temperature sensor 27 can all adopt the existing technology, among which the acceleration sensor 26 and the temperature sensor 27 can specifically adopt non-contact type.

[0014] In this embodiment, the magnetorheological clamp 12 includes a substrate 28, the substrate 28 is fixedly connected to the corresponding first lifting plate 4 or second lifting plate 5, an electromagnetic coil 29 is embedded on the peripheral side of the substrate 28, a pressure sensor 30 is embedded on the end of the substrate 28 away from the corresponding first lifting plate 4 or second lifting plate 5, the peripheral side of the substrate 28 and the side away from the corresponding first lifting plate 4 or second lifting plate 5 are wrapped with a magnetorheological elastomer 31, the tail end of the pressure sensor 30 extends into the corresponding magnetorheological elastomer 31, and the electromagnetic coil 29 and the pressure sensor 30 are both electrically connected to the control center 19, so that when the monitoring device is installed, in the initial state, the electromagnetic coil 29 is not energized, the magnetorheological elastomer 31 is in a pre-yield state, the shear yield stress is small, and deformation is easy to occur. When the two magnetorheological clamps 12 approach each other and contact the corresponding rotating equipment, the impact caused by the contact can be reduced to ensure stability. Then, when the two magnetorheological clamps 12 continue to approach each other, the magnetorheological elastomer 31 corresponding to the magnetorheological clamp 12 can continue to press against the rotating device. At this time, the magnetorheological elastomer 31 is compressed and deformed, so that it can be perfectly nested and wrapped on the rotating device. At the same time, the pressure sensor 30 is compressed and gives an electrical signal to the control center 19, so that the control center 19 can judge through the pressure sensor 30 that the magnetorheological elastomer 31 has been pressed against the rotating device and deformed, thereby automatically controlling the circuit of the electromagnetic coil 29 to be connected. The electromagnetic coil 29 is energized to generate a magnetic field. The magnetorheological elastomer 31 can generate a large shear yield stress in the magnetic field environment, so that its own shape is solidified and no longer changes, and then it can perfectly adapt to the surface of the rotating device, and the monitoring device is firmly installed on the rotating device, fixed more stably and reliably, does not affect the subsequent monitoring operation, and can better ensure the monitoring quality. When the monitoring device needs to be disassembled, the first motor 9 is used to drive the gear 10 to rotate clockwise, so that the first rack 6 moves up and the second rack 7 moves down, and the two magnetorheological clamps 1 can leave the rotating device and move away from each other. During the process, the pressure sensor 30 loses pressure and gives an electrical signal to the control center 19 again, so that the control center 19 can automatically control the circuit of the electromagnetic coil 29 to be disconnected, and then the magnetorheological elastomer 31 returns to its original state after losing the magnetic field effect, so as not to affect its subsequent installation and use, so that the installation and use of the entire monitoring device can be flexibly adapted to different positions of different rotating devices, and the installation stability of the monitoring device can be improved while further enhancing the flexibility and convenience of the device. The electromagnetic coil 29 and the pressure sensor 30 can both use existing technologies.Magnetorheological elastomer 31 is an existing technology, which is obtained by adding micron-scale ferromagnetic particles into a high molecular polymer. It can be deformed and restored under normal conditions, and can also be solidified under a magnetic field environment, so that the particles in the matrix have a chain or columnar structure. The elastic modulus of this material can change with the strength of the external magnetic field. Therefore, it is expected to be widely used in variable stiffness devices and the like. Compared with ordinary magnetorheological fluids, magnetorheological elastomers not only have high-tech characteristics such as controllability, reversibility, and rapid response, but also have unique advantages such as good stability.

[0015] In this embodiment, a T-shaped slider 32 is fixedly provided on the top of the moving frame 20 , and a matching slide groove 33 is opened on the bottom of the top plate 18 corresponding to the slider 32 , and the slider 32 is slidably arranged in the slide groove 33 to effectively guide and limit the moving frame 20 .

[0016] In this embodiment, the slide seat 21 is matched with the moving frame 20 to ensure smooth sliding of the slide seat 21 .

[0017] In this embodiment, the base 1 is made of foam aluminum, which is an existing material with excellent properties such as high specific stiffness, high damping and shock absorption, impact energy absorption rate, corrosion resistance and heat resistance. The base 1 is made of this material, which is more conducive to ensuring the smooth progress of the monitoring operation.

[0018] In this embodiment, limit plates 34 are fixedly sleeved on both upper and lower ends of the guide rod 2 to limit the first lifting plate 4 and the second lifting plate 5 .

[0019] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A large rotating equipment health monitoring device, characterized in that: The cam is an L-shaped bracket having an upper portion and a lower portion, and the upper portion and the lower portion are provided with a plurality of L-shaped brackets, wherein the first and second gears are connected to each other by a plurality of gears, and the plurality of gears are connected to each other by a plurality of gears. The cam is connected to the left side of the vehicle frame by a toothed structure, and the toothed structure is connected to the left side of the vehicle frame by a toothed structure.

2. The large rotating equipment health monitoring device according to claim 1, characterized in that: The magnetorheological clamping plate includes a substrate, which is fixedly connected to the corresponding first lifting plate or the second lifting plate, an electromagnetic coil is embedded on the peripheral side of the substrate, a pressure sensor is embedded on one end of the substrate away from the corresponding first lifting plate or the second lifting plate, the peripheral side of the substrate and one side of the substrate away from the corresponding first lifting plate or the second lifting plate are wrapped with a magnetorheological elastomer, the tail end of the pressure sensor extends into the corresponding magnetorheological elastomer, and the electromagnetic coil and the pressure sensor are both electrically connected to the control center.

3. The large-scale rotating equipment health monitoring device according to claim 1, characterized in that: A T-shaped sliding block is fixedly arranged on the top of the moving frame, and a matching sliding groove is opened on the bottom of the top plate corresponding to the sliding block, and the sliding block is slidably arranged in the sliding groove.

4. The large-scale rotating equipment health monitoring device according to claim 1, characterized in that: The sliding seat is matched with the moving frame.

5. The large-scale rotating equipment health monitoring device according to claim 1, characterized in that: The base is made of foamed aluminum.

6. The large-scale rotating equipment health monitoring device according to claim 1, characterized in that: Limiting plates are fixedly sleeved on both upper and lower ends of the guide rod.

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