CN216115844U - Axial displacement monitor for shielding pump - Google Patents
Axial displacement monitor for shielding pump Download PDFInfo
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- CN216115844U CN216115844U CN202122571362.4U CN202122571362U CN216115844U CN 216115844 U CN216115844 U CN 216115844U CN 202122571362 U CN202122571362 U CN 202122571362U CN 216115844 U CN216115844 U CN 216115844U
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- axial displacement
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Abstract
The utility model discloses a shielding pump axial displacement monitor, which comprises a shell, wherein the shell comprises a sensor shell and a main shell, and one end of the sensor shell is arranged on one side of the main shell through a bolt; the other end of the sensor shell is provided with a shaft sleeve through a bolt, a magnetic core shaft is rotatably arranged in the shaft sleeve, and the outer end part of the magnetic core shaft is connected with a shielding pump shaft; the coil sensor is sleeved outside the inner end of the magnetic core shaft, a mounting groove is formed in the sensor shell, the coil sensor is located inside the mounting groove, and a display assembly is electrically connected to the coil sensor. The utility model mainly comprises a magnetic core shaft, a shaft sleeve, a sensor shell, a coil sensor, a display component and other sensor components, wherein the coil sensor is arranged in the sensor shell, and the display component is arranged in a metal shell to form an integrated structure, so that the explosion-proof magnetic core shaft has an explosion-proof function and can adapt to various complex working environments.
Description
Technical Field
The utility model relates to the technical field of canned motor pumps, in particular to a canned motor pump axial displacement monitor.
Background
The conventional centrifugal pump is driven by connecting an impeller shaft of the pump with an electric shaft through a coupling so that the impeller and the motor rotate together to work, while the canned pump is a sealless pump, and the pump and a driving motor are both sealed in a pressure vessel filled with a pumped medium, the pressure vessel is only provided with static seals, and a rotating magnetic field is provided by an electric wire set and drives a rotor. The structure cancels a rotating shaft sealing device of the traditional centrifugal pump, so the structure can completely avoid leakage, and the use of the shield pump in the industries of chemical engineering, nuclear power and the like is more and more common in recent years.
The monitoring of the axial displacement of the canned motor pump is one of the keys influencing whether the canned motor pump can run safely and reliably. Most of shielding pump axial displacement monitors in the current market adopt a split type structure, a sensor and a monitoring instrument are separated, the middle of the monitoring instrument is connected by a cable, and the use requirements under complex environments cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a shielding pump axial displacement monitor which has an explosion-proof function and can adapt to various complex working environments so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a shielding pump axial displacement monitor comprises a shell, wherein the shell comprises a sensor shell and a main shell, and one end of the sensor shell is installed on one side of the main shell through a bolt;
the other end of the sensor shell is provided with a shaft sleeve through a bolt, a magnetic core shaft is rotatably arranged in the shaft sleeve, and the outer end part of the magnetic core shaft is connected with a shielding pump shaft; the coil sensor is sleeved outside the inner end of the magnetic core shaft, a mounting groove is formed in the sensor shell, the coil sensor is located inside the mounting groove, and a display assembly is electrically connected to the coil sensor.
Preferably, the display component comprises an LED display screen, a display circuit board and a main circuit board; the coil sensor is electrically connected with the main circuit board through a cable, the display circuit board is electrically connected to the main circuit board, and the LED display screen is electrically connected with the display circuit board.
Preferably, the display circuit board and the main circuit board are both located inside the metal shell, a mounting hole is formed in one side of the metal shell, the LED display screen is mounted inside the mounting hole, and window glass is mounted in the mounting hole.
Preferably, a heat insulation pad is arranged between one side of the shaft sleeve and the end part of the sensor shell, and a heat radiation fin is arranged on the outer side surface of the heat insulation pad.
Preferably, an internal thread part is formed in the inner side wall of one end of the sensor shell, a compression nut is connected to the internal thread part in a threaded mode, and a heat insulation cushion block is arranged between one side of the compression nut and one end of the coil sensor.
Preferably, a cover plate is mounted on the main housing, and the cover plate comprises a front cover and a rear cover; the front cover is installed at the top of the main shell body through bolts, and the rear cover is installed at the bottom of the main shell body through bolts.
Preferably, an explosion-proof joint is installed at one side of the main shell, and the explosion-proof joint is communicated with the interior of the main shell.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model mainly comprises sensor components such as a magnetic core shaft, a shaft sleeve, a sensor shell, a coil sensor, a display component and the like, wherein the coil sensor is arranged in the sensor shell, and the display component is arranged in a metal shell to form an integrated structure, thereby having an explosion-proof function and being capable of adapting to various complex working environments;
2. according to the utility model, the magnetic core shaft is rotatably arranged on the sensor shell through the shaft sleeve, the coil sensor is sleeved outside the magnetic core shaft, the outer end part of the magnetic core shaft is connected with the shielding pump shaft, the axial position change of the magnetic core shaft can reflect the axial displacement of the shielding pump in real time and is displayed on the LED display screen, and the purpose of good monitoring can be achieved.
Drawings
FIG. 1 is a schematic structural diagram of a canned motor pump axial displacement monitor according to the present invention;
FIG. 2 is a schematic structural diagram of a display module according to the present invention.
In the figure: 1. a magnetic core shaft; 2. a shaft sleeve; 3. a heat insulating pad; 4. a sensor housing; 5. a coil sensor; 6. an LED display screen; 7. a window glass; 8. a front cover; 9. a display circuit board; 10. a main circuit board; 11. an explosion-proof joint; 12. a main housing; 13. a rear cover; 14. a compression nut; 15. a heat insulation cushion block; 16. a metal housing; 17. and (4) mounting the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the utility model provides a shield pump axial displacement monitor, which includes a housing, the housing includes a sensor housing 4 and a main housing 12, and one end of the sensor housing 4 is mounted on one side of the main housing 12 through a bolt. The sensor housing 4 and the main housing 12 may function to protect the coil sensor 5, the display module, and the like.
Install axle sleeve 2 at sensor housing 4's the other end through the bolt, be equipped with heat insulating mattress 3 between one side of axle sleeve 2 and sensor housing 4's the tip, heat radiating fin is equipped with on heat insulating mattress 3's the outside surface, and the heat dissipation of the axle sleeve 2 of being convenient for improves the life of axle sleeve 2. The magnetic core shaft 1 is installed in the internal rotation of the shaft sleeve 2, the shaft sleeve 2 is used for fixing the magnetic core shaft 1, the magnetic core shaft 1 can be kept to rotate along with the shielding pump shaft, the outer end portion of the magnetic core shaft 1 is connected with the shielding pump shaft, and the axial position change of the magnetic core shaft 1 can reflect the axial displacement of the shielding pump in real time and is displayed on the LED display screen 6. Coil sensor 5 has been cup jointed to the inner outside of magnetic core axle 1, mounting groove 17 has been seted up to the inside of sensor housing 4, and coil sensor 5 is located the inside of mounting groove 17, and when magnetic core axle 1 rotated in coil sensor 5, can produce certain electric current, when the displacement of shield pump shaft, can drive magnetic core axle 1 and take place the rotation deviation, influence the electric current, can produce the electric current and fluctuate, and then judge whether the displacement appears in the shield pump shaft.
The coil sensor 5 is electrically connected with a display component, and the display component comprises an LED display screen 6, a display circuit board 9 and a main circuit board 10. The coil sensor 5 is electrically connected with the main circuit board 10 through a cable, the display circuit board 9 is electrically connected on the main circuit board 10, and the LED display screen 6 is electrically connected with the display circuit board 9. The main circuit board 10 is externally connected with a power supply, and is provided with electronic components such as a resistor and the like for monitoring the current generated by the coil sensor 5 and displaying the current on the LED display screen 6 through the display circuit board 9. The specific structures and operating principles of the LED display screen 6, the display circuit board 9 and the main circuit board 10 are the prior art, and are not described herein again.
The display circuit board 9 and the main circuit board 10 are both installed inside the metal shell 16, a mounting hole is formed in one side of the metal shell 16, the LED display screen 6 is installed inside the mounting hole, and the window glass 7 is installed in the mounting hole, so that the LED display screen 6 can be observed conveniently. The display component is arranged in the metal shell 16 to form an integrated structure, has an explosion-proof function and can adapt to various complex working environments.
An internal thread part is formed in the inner side wall of one end of the sensor shell 4, a compression nut 14 is connected to the internal thread part in a threaded mode, and a heat insulation cushion block 15 is arranged between one side of the compression nut 14 and one end of the coil sensor 5. The compression nut 14 and the heat insulation cushion block 15 are used for fixing the coil sensor 5, so that the coil sensor 5 is convenient to disassemble and assemble, and the heat insulation cushion block 15 can play a heat insulation role.
A cover plate including a front cover 8 and a rear cover 13 is mounted on the main housing 12. The front cover 8 is mounted to the top of the main housing 12 by bolts, and the rear cover 13 is mounted to the bottom of the main housing 12 by bolts. An explosion proof joint 11 is installed at one side of the main housing 12, and the explosion proof joint 11 communicates with the inside of the main housing 12. Explosion-proof connector 11 is used for placing and connecting the cable on main circuit board 10, and the cable passes through main housing 12 and metal housing 16 to be connected with main circuit board 10.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a shield pump axial displacement monitor, includes the casing, its characterized in that: the shell comprises a sensor shell (4) and a main shell (12), and one end of the sensor shell (4) is installed on one side of the main shell (12) through a bolt;
the other end of the sensor shell (4) is provided with a shaft sleeve (2) through a bolt, a magnetic core shaft (1) is rotatably arranged in the shaft sleeve (2), and the outer end of the magnetic core shaft (1) is connected with a shielding pump shaft; coil sensor (5) have been cup jointed to the inner outside of magnetic core axle (1), mounting groove (17) have been seted up to the inside of sensor shell (4), coil sensor (5) are located the inside of mounting groove (17), electric connection has display module on coil sensor (5).
2. The axial displacement monitor of a shielding pump according to claim 1, wherein: the display assembly comprises an LED display screen (6), a display circuit board (9) and a main circuit board (10); the coil sensor (5) is electrically connected with the main circuit board (10) through a cable, the display circuit board (9) is electrically connected to the main circuit board (10), and the LED display screen (6) is electrically connected with the display circuit board (9).
3. The axial displacement monitor of a shielding pump according to claim 2, wherein: display circuit board (9) and main circuit board (10) all are located the inside of metal casing (16), the mounting hole has been seted up to one side of metal casing (16), install in the inside of mounting hole LED display screen (6), and install window glass (7) in the mounting hole.
4. The axial displacement monitor of a shielding pump according to claim 1, wherein: a heat insulation pad (3) is arranged between one side of the shaft sleeve (2) and the end part of the sensor shell (4), and heat dissipation fins are arranged on the outer side surface of the heat insulation pad (3).
5. The axial displacement monitor of a shielding pump according to claim 1, wherein: an internal thread part is formed in the inner side wall of one end of the sensor shell (4), a compression nut (14) is connected to the internal thread part in a threaded mode, and a heat insulation cushion block (15) is arranged between one side of the compression nut (14) and one end of the coil sensor (5).
6. The axial displacement monitor of a shielding pump according to claim 1, wherein: a cover plate is arranged on the main shell (12), and the cover plate comprises a front cover (8) and a rear cover (13); the front cover (8) is mounted on the top of the main shell (12) through bolts, and the rear cover (13) is mounted on the bottom of the main shell (12) through bolts.
7. The axial displacement monitor of a shielding pump according to claim 1, wherein: explosion-proof joint (11) are installed to one side of main casing body (12), and explosion-proof joint (11) are linked together with the inside of main casing body (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122571362.4U CN216115844U (en) | 2021-10-26 | 2021-10-26 | Axial displacement monitor for shielding pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122571362.4U CN216115844U (en) | 2021-10-26 | 2021-10-26 | Axial displacement monitor for shielding pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216115844U true CN216115844U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122571362.4U Active CN216115844U (en) | 2021-10-26 | 2021-10-26 | Axial displacement monitor for shielding pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216115844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024046191A1 (en) * | 2022-08-30 | 2024-03-07 | 东方电气集团东方电机有限公司 | Shielding motor rotor axial displacement monitoring apparatus |
-
2021
- 2021-10-26 CN CN202122571362.4U patent/CN216115844U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024046191A1 (en) * | 2022-08-30 | 2024-03-07 | 东方电气集团东方电机有限公司 | Shielding motor rotor axial displacement monitoring apparatus |
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