CN216815335U - Calibration device for eddy current displacement sensor - Google Patents
Calibration device for eddy current displacement sensor Download PDFInfo
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- CN216815335U CN216815335U CN202123165378.1U CN202123165378U CN216815335U CN 216815335 U CN216815335 U CN 216815335U CN 202123165378 U CN202123165378 U CN 202123165378U CN 216815335 U CN216815335 U CN 216815335U
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- eddy current
- displacement sensor
- current displacement
- box body
- calibration device
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Abstract
The utility model discloses a calibration device for an eddy current displacement sensor, which comprises a bracket and a fixing mechanism, wherein the fixing mechanism comprises a fixed disc, three through grooves are formed in the fixed disc, a moving assembly and a moving plate are respectively arranged on two sides of each through groove, each moving assembly comprises a rectangular box body, an electromagnet is arranged in each rectangular box body, a guide rod is arranged on one side of each electromagnet, a T-shaped sliding block is sleeved on the outer side of each guide rod, a permanent magnet is arranged on one side of each T-shaped sliding block, a connecting arm is arranged on one side of each moving plate, and an arc-shaped clamping plate is arranged at one end, far away from the moving plate, of each connecting arm. The probe of the eddy current displacement sensor is fixed by the fixing disc, the electromagnet, the permanent magnet, the T-shaped sliding block, the guide rod and the arc-shaped clamping plate, a three-point positioning mode is adopted, the stability is higher, the probe is suitable for fixing the probes of the sensors with different specifications, and the replacement of the sensors is convenient.
Description
Technical Field
The utility model relates to the field of sensor calibration equipment, in particular to a calibration device for an eddy current displacement sensor.
Background
The eddy current displacement sensor is a non-contact linear metering tool, can accurately measure static and dynamic relative displacement changes between a measured body and the end face of a metal probe, is widely applied to on-line measurement and protection of radial vibration, axial displacement, key phase, shaft rotating speed, differential expansion, eccentricity and the like of large-scale rotating mechanical shafts such as a steam turbine, a water turbine, a blower, a compressor, an air compressor, a gear box, a large-scale cooling pump and the like, needs to be calibrated before use, and most of the existing calibration of the eddy current displacement sensor is to calibrate the calibrated eddy current displacement sensor by fixing the calibrated eddy current displacement sensor on a support and changing the distance by a manual rotating micrometer.
The patent document with application number 201921379923.7 provides a calibration device for an eddy current displacement sensor, which comprises an eddy current displacement sensor and a displacement system which are oppositely arranged; the displacement system is connected with a grating ruler; the grating ruler reading head is also included; when the displacement system moves relative to the eddy current displacement sensor, the grating ruler reading head can measure the displacement; the eddy current displacement sensor is arranged in a mode of comprising a bottom plate; a mounting table a is vertically fixed on one side of the upper surface of the bottom plate; a threaded hole a is horizontally formed in the mounting table a; the eddy current displacement sensor penetrates through the threaded hole a and is in threaded connection with the mounting table a, although the eddy current displacement sensor can be calibrated, the calibration process is convenient to operate and high in efficiency, the probe of the eddy current displacement sensor is fixed in a threaded connection mode, so that the probe is labor-consuming in disassembly, the situation that the probe cannot be screwed down can occur, time waste is caused, and the probe is not suitable for calibrating probes of different models.
Therefore, it is necessary to invent a calibration device for an eddy current displacement sensor to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a calibration device of an eddy current displacement sensor, which is used for solving the problems that in the existing calibration process of the eddy current displacement sensor, a probe of the eddy current displacement sensor is installed in a thread mode, so that the probe is labor-consuming to disassemble, can not be twisted off, causes time waste and is not suitable for calibrating probes of different models.
In order to achieve the above purpose, the utility model provides the following technical scheme: a calibration device for an eddy current displacement sensor comprises a support and a fixing mechanism, wherein the fixing mechanism comprises a fixed disc, three through grooves are formed in the fixed disc, the three through grooves are uniformly distributed on the fixed disc along the circumference, a moving assembly and a moving plate are respectively arranged on two sides of each through groove, the moving assembly comprises a rectangular box body, the rectangular box body is fixedly connected with the fixed disc, an electromagnet is installed in the rectangular box body, a guide rod is installed on one side of the electromagnet, one end, away from the electromagnet, of the guide rod is fixedly connected with the rectangular box body, a T-shaped sliding block is sleeved on the outer side of the guide rod, one end of the T-shaped sliding block is fixedly connected with the moving plate, the T-shaped sliding block is slidably connected with the guide rod, a permanent magnet is installed on one side, close to the electromagnet, of the T-shaped sliding block, and a moving plate is installed on one side, opposite to the T-shaped sliding block, of the moving plate, and an arc-shaped clamping plate is arranged at one end of the connecting arm, which is far away from the moving plate.
Preferably, the support comprises a bottom plate and a vertical plate, a linear module is arranged on one side of the fixing mechanism and fixed to the top of the bottom plate, a mounting seat is arranged at the top of the linear module, and a test disc is mounted on one side, close to the fixing mechanism, of the mounting seat.
Preferably, one side of mount pad is equipped with the mounting panel, the grating chi is installed to one side that the mount pad was kept away from to the mounting panel, one side that the mounting panel was kept away from to the grating chi is equipped with the riser, riser and bottom plate fixed connection, the spiro union has grating chi reading head on the riser, grating chi reading head is relative setting with the grating chi, just mount pad and mounting panel all with the slide fixed connection of sharp module.
Preferably, one side that the rectangle box body is close to the fixed disk is equipped with the opening, spacing spout has all been seted up on the both sides board of rectangle box body, just the slide bar is all installed at the both ends of T type slider, slide bar and spacing spout sliding connection.
Preferably, the outer wall of the guide rod is sleeved with a return spring, and two ends of the return spring are respectively fixedly connected with the T-shaped sliding block and the rectangular box body.
Preferably, the riser is provided with a threaded through hole, the center of the fixed disk is provided with a threaded cylinder, one end of the threaded cylinder penetrates through the fixed disk and is fixedly connected with the fixed disk, and the other end of the threaded cylinder penetrates through the threaded through hole and is in threaded connection with the riser.
Preferably, one side of the arc-shaped clamping plate, which is far away from the connecting arm, is provided with an anti-skidding cushion, and the anti-skidding cushion is fixedly connected with the arc-shaped clamping plate.
In the technical scheme, the utility model provides the following technical effects and advantages:
1. the probe of the eddy current displacement sensor is fixed through the fixed disc, the electromagnet, the permanent magnet, the T-shaped sliding block, the guide rod and the arc-shaped clamping plate, a three-point positioning mode is adopted, the stability is higher, the probe fixing device is suitable for fixing sensor probes of different specifications, and the sensor replacement is convenient;
2. the eddy current displacement sensor can be calibrated, an electric driving mode is adopted in the whole calibration process, and compared with a manual calibration mode, the calibration efficiency and accuracy are greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the backside structure of the present invention;
FIG. 3 is a schematic structural view of a fixing mechanism of the present invention;
fig. 4 is a cross-sectional view of the securing mechanism of the present invention.
Description of reference numerals:
1. a support; 2. a fixing mechanism; 3. a linear module; 4. a mounting seat; 5. mounting a plate; 6. a vertical plate; 7. a grating ruler reading head; 8. a grating scale; 9. a test tray; 10. fixing the disc; 11. a through groove; 12. moving the plate; 13. a connecting arm; 14. an arc-shaped splint; 15. a rectangular box body; 16. a limiting chute; 17. an electromagnet; 18. a guide bar; 19. a T-shaped slider; 20. a permanent magnet; 21. a return spring; 22. a slide bar; 23. an anti-slip soft cushion; 24. a threaded barrel.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
The utility model provides a calibration device of an eddy current displacement sensor as shown in figures 1-4, which comprises a bracket 1 and a fixing mechanism 2, wherein the fixing mechanism 2 comprises a fixed disc 10, the fixed disc 10 is provided with three through grooves 11, the three through grooves 11 are uniformly distributed on the fixed disc 10 along the circumference, two sides of each through groove 11 are respectively provided with a moving assembly and a moving plate 12, each moving assembly comprises a rectangular box body 15, the rectangular box bodies 15 are fixedly connected with the fixed disc 10, electromagnets 17 are arranged in the rectangular box bodies 15, the electromagnets 17 are electrically connected with an industrial personal computer, the industrial personal computer controls the on-off of the electromagnets 17, one side of each electromagnet 17 is provided with a guide rod 18, each guide rod 18 plays a guiding role, one end of each guide rod 18, which is far away from the electromagnets 17, is fixedly connected with the rectangular box bodies 15, and a T-shaped sliding block 19 is sleeved on the outer side of each guide rod 18, one end and the movable plate 12 fixed connection of T type slider 19, T type slider 19 and guide bar 18 sliding connection, permanent magnet 20 is installed to one side that T type slider 19 is close to electro-magnet 17, just one side relative with T type slider 19 on the movable plate 12 installs linking arm 13, linking arm 13 is kept away from the one end of movable plate 12 and is installed arc type splint 14, and calibration device still includes the industrial computer, and the industrial computer takes the display screen, utilizes the display screen can show the data that electric vortex displacement sensor surveyed, during the use, can manually input the displacement value of test panel 9 on the industrial computer, need explain that the industrial computer is prior art with being connected of electro-magnet 17, sharp module 3 and each sensor, consequently does not mark the position of industrial computer in figures 1-4, also does not prescribe a limit to the mounting means of industrial computer.
Further, in the above technical scheme, the bracket 1 is composed of a bottom plate and a vertical plate, and one side of the fixing mechanism 2 is provided with a linear module 3, the linear module 3 is electrically connected with an industrial personal computer, the linear module 3 is fixed on the top of the bottom plate, the top of the linear module 3 is provided with a mounting seat 4, one side of the mounting seat 4 close to the fixing mechanism 2 is provided with a test disc 9, the linear module 3 drives the mounting seat 4 and the test disc 9 thereon to move, it should be noted that the center of the test disc 9 should be located on the same horizontal line with the eddy current displacement sensor, one side that linking arm 13 was kept away from to arc splint 14 is equipped with anti-skidding cushion 23, anti-skidding cushion 23 and arc splint 14 fixed connection, the anti-skidding cushion 23 that sets up adopt sponge, rubber can silica gel material preparation, can prevent effectively that arc splint 14 from causing the damage to eddy current displacement sensor surface.
Further, in above-mentioned technical scheme, one side of mount pad 4 is equipped with mounting panel 5, mounting panel 5 is kept away from one side of mount pad 4 and is installed grating chi 8, one side that mounting panel 5 was kept away from to grating chi 8 is equipped with riser 6, riser 6 and bottom plate fixed connection, the spiro union has grating chi reading head 7 on the riser 6, grating chi reading head 7 is relative setting with grating chi 8, just mount pad 4 and mounting panel 5 all with sharp module 3's slide fixed connection, grating chi reading head 7 uses cable and industrial computer electric connection, and grating chi reading head 7 detects grating chi 8 and can send feedback signal to the industrial computer when moving apart from reaching the input value, when receiving the signal, can control sharp industrial computer module 3 stop work.
Further, in the above technical scheme, one side that rectangle box body 15 is close to fixed disk 10 is equipped with the opening, spacing spout 16 has all been seted up on the both sides board of rectangle box body 15, just slide bar 22 is all installed at the both ends of T type slider 19, slide bar 22 and spacing spout 16 sliding connection utilize slide bar 22 and spacing spout 16's sliding connection, carry out spacingly to T type slider 19, can prevent effectively that T type slider 19 from causing the damage to electro-magnet 17 and reset spring 21, and slide bar 22 and spacing spout 16 still play the guide effect simultaneously.
Further, in the above technical solution, the outer wall of the guide rod 18 is sleeved with a return spring 21, two ends of the return spring 21 are respectively and fixedly connected with the T-shaped slider 19 and the rectangular box body 15, and when the magnetic force of the electromagnet 17 disappears, the T-shaped slider 19 can be returned by the elastic force of the return spring 21.
Further, in above-mentioned technical scheme, threaded through hole has been seted up on the riser, just a screw thread section of thick bamboo 24 is installed to the center department of fixed disk 10, the one end of screw thread section of thick bamboo 24 run through fixed disk 10 and with fixed disk 10 fixed connection, the other end of screw thread section of thick bamboo 24 pass the threaded through hole and with riser threaded connection, utilize threaded connection to install fixed disk 10 on the riser, it is convenient to dismantle, and the later stage maintenance fixed establishment 2 of being convenient for, during the fixed eddy current displacement sensor, eddy current displacement sensor's cable passes and links to each other with the input interface of industrial computer from a screw thread section of thick bamboo 24.
This practical theory of operation:
referring to the attached drawings 1, 3 and 4 of the specification, a probe of an eddy current displacement sensor is placed at the center of a fixed disc 10, a cable of the eddy current displacement sensor penetrates through a threaded cylinder 24 to be connected with an input interface of an industrial personal computer, then the industrial personal computer is started, an electrifying button is manually pressed to electrify an electromagnet 17, the electrified electromagnet 17 generates magnetic force, a permanent magnet 20 drives a T-shaped sliding block 19 to move along a guide rod 18, an arc-shaped clamping plate 14 is driven by the T-shaped sliding block 19 to move towards the circle center of the fixed disc 10, and the arc-shaped clamping plate 14 can clamp the probe of the eddy current displacement sensor;
referring to the attached drawings 1 and 2 of the specification, after the eddy current displacement sensor is installed, a displacement value of a test disc 9 is manually input on an industrial personal computer, then the linear module 3 is started through the industrial personal computer, the linear module 3 is utilized to drive the installation seat 4 and the test disc 9 on the installation seat to move, when a grating ruler reading head 7 detects that the moving distance of a grating ruler 8 reaches an input value, a feedback signal is sent to the industrial personal computer, when the industrial personal computer receives the signal, the linear module 3 is controlled to stop operating, at the moment, the change of the distance between a probe of the eddy current displacement sensor and the test disc 9 is displayed on a display screen, therefore, the eddy current displacement sensor can be calibrated, data in the calibration process is recorded by the industrial personal computer and is stored, after the calibration is finished, the displacement value can be input again in the industrial personal computer to enable the test disc 9 to return to the original position, and finally the eddy current displacement sensor can be replaced, and carrying out next calibration.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.
Claims (7)
1. The utility model provides an eddy current displacement sensor calibration device, includes support (1) and fixed establishment (2), its characterized in that: the fixing mechanism (2) comprises a fixing disc (10), three through grooves (11) are formed in the fixing disc (10), the through grooves (11) are distributed on the fixing disc (10) along the circumference uniformly, moving assemblies and moving plates (12) are arranged on two sides of each through groove (11), each moving assembly comprises a rectangular box body (15), each rectangular box body (15) is fixedly connected with the fixing disc (10), an electromagnet (17) is installed in each rectangular box body (15), a guide rod (18) is installed on one side of each electromagnet (17), one end, away from each electromagnet (17), of each guide rod (18) is fixedly connected with the corresponding rectangular box body (15), a T-shaped sliding block (19) is sleeved on the outer side of each guide rod (18), one end of each T-shaped sliding block (19) is fixedly connected with the corresponding moving plate (12), and each T-shaped sliding block (19) is slidably connected with the corresponding guide rod (18), permanent magnet (20) are installed to one side that T type slider (19) are close to electro-magnet (17), just linking arm (13) are installed to one side relative with T type slider (19) on movable plate (12), arc type splint (14) are installed to the one end that movable plate (12) were kept away from in linking arm (13).
2. The calibration device of the eddy current displacement sensor as claimed in claim 1, wherein: support (1) comprises bottom plate and riser, just one side of fixed establishment (2) is equipped with sharp module (3), sharp module (3) are fixed in the bottom plate top, the top of sharp module (3) is equipped with mount pad (4), test disc (9) are installed to one side that mount pad (4) are close to fixed establishment (2).
3. The calibration device of the eddy current displacement sensor as claimed in claim 2, wherein: one side of mount pad (4) is equipped with mounting panel (5), mounting panel (5) are kept away from one side of mount pad (4) and are installed grating chi (8), one side that mounting panel (5) were kept away from in grating chi (8) is equipped with riser (6), riser (6) and bottom plate fixed connection, the spiro union has grating chi reading head (7) on riser (6), grating chi reading head (7) are relative setting with grating chi (8), just mount pad (4) and mounting panel (5) all with the slide fixed connection of sharp module (3).
4. The calibration device of the eddy current displacement sensor as claimed in claim 1, wherein: one side that rectangle box body (15) is close to fixed disk (10) is equipped with the opening, spacing spout (16) have all been seted up on the both sides board of rectangle box body (15), just slide bar (22) are all installed at the both ends of T type slider (19), slide bar (22) and spacing spout (16) sliding connection.
5. The calibration device of the eddy current displacement sensor as claimed in claim 1, wherein: the outer wall of the guide rod (18) is sleeved with a return spring (21), and two ends of the return spring (21) are fixedly connected with the T-shaped sliding block (19) and the rectangular box body (15) respectively.
6. The calibration device of the eddy current displacement sensor as claimed in claim 2, wherein: the vertical plate is provided with a threaded through hole, a threaded cylinder (24) is installed at the center of the fixed disk (10), one end of the threaded cylinder (24) penetrates through the fixed disk (10) and is fixedly connected with the fixed disk (10), and the other end of the threaded cylinder (24) penetrates through the threaded through hole and is in threaded connection with the vertical plate.
7. The calibration device of the eddy current displacement sensor as claimed in claim 1, wherein: one side that linking arm (13) were kept away from in arc splint (14) is equipped with anti-skidding cushion (23), anti-skidding cushion (23) and arc splint (14) fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123165378.1U CN216815335U (en) | 2021-12-17 | 2021-12-17 | Calibration device for eddy current displacement sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123165378.1U CN216815335U (en) | 2021-12-17 | 2021-12-17 | Calibration device for eddy current displacement sensor |
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| CN216815335U true CN216815335U (en) | 2022-06-24 |
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| CN202123165378.1U Active CN216815335U (en) | 2021-12-17 | 2021-12-17 | Calibration device for eddy current displacement sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183627A (en) * | 2023-05-04 | 2023-05-30 | 常州市双佳电器有限公司 | LED lamp panel detection device |
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2021
- 2021-12-17 CN CN202123165378.1U patent/CN216815335U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183627A (en) * | 2023-05-04 | 2023-05-30 | 常州市双佳电器有限公司 | LED lamp panel detection device |
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