CN217179507U - Linear displacement sensor calibration device - Google Patents
Linear displacement sensor calibration device Download PDFInfo
- Publication number
- CN217179507U CN217179507U CN202122124691.4U CN202122124691U CN217179507U CN 217179507 U CN217179507 U CN 217179507U CN 202122124691 U CN202122124691 U CN 202122124691U CN 217179507 U CN217179507 U CN 217179507U
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- displacement sensor
- grid
- sliding block
- calibration device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model provides a linear displacement sensor calibration equipment, establish the casing of cavity including it, be equipped with the lead screw that establishes the slider on it in its characterized in that casing cavity, be equipped with the movable grid of appearance bars scale and displacement sensor's removal plug on the slider respectively, be equipped with in the casing cavity and move the fixed grid that the grid matches and connects to reach the displacement sensor's that connects with removing the plug mounting, displacement sensor's mounting is connected with the voltmeter electricity that locates on the casing, the movable grid of appearance bars scale is connected with the display screen electricity that locates on the casing. The hand wheel is operated to enable the screw rod to rotate and simultaneously drive the sliding block to move, so that displacement data are generated between the moving grid and the fixed grid on the sliding block and displayed on the display screen, meanwhile, the sliding block moves to drive the moving core rod of the displacement sensor to move in the fixing piece, voltage data sensed when the moving core rod moves are displayed on the voltmeter, the accuracy of the displacement sensor is tested and verified, and the verification accuracy is guaranteed.
Description
Technical Field
The utility model relates to a calibration equipment, especially a linear displacement sensor calibration equipment locate mechanical design and make technical field.
Background
The linear displacement sensor is mainly used for a main pressure distribution valve control system of a hydraulic power plant speed regulator, the main pressure distribution valve is used as an important mechanism of the hydraulic turbine speed regulator, and the displacement sensor converts the valve core displacement into an electric signal and feeds the electric signal back to a hydraulic control device of the speed regulator. When the displacement sensor fails, the failure needs to be quickly positioned and eliminated. In addition, after the new displacement sensor is in place, the indexes such as error, linearity and repeatability of the displacement sensor also need to be tested. The existing laser interferometer is used for completing the work, so that the cost is high, the structure volume is large, the operation process is complex, and the field use is not facilitated. There is therefore a need for improvements in the prior art.
Disclosure of Invention
For solving current linear displacement sensor fault location, getting rid of to and the index test of new installation adopts a great deal of problem that laser interferometer brought, the utility model provides a linear displacement sensor calibration equipment.
The utility model discloses a following technical scheme accomplishes: the linear displacement sensor calibration device comprises a shell with a cavity arranged therein, and is characterized in that a screw rod with a sliding block arranged thereon is arranged in the cavity of the shell, a movable grid of a capacitance grid scale and a movable core rod of a displacement sensor are respectively arranged on the sliding block, a fixed grid matched with the movable grid and a fixed part of the displacement sensor matched with the movable core rod are arranged in the cavity of the shell, the fixed part of the displacement sensor is electrically connected with a voltmeter arranged on the shell, and the movable grid of the capacitance grid scale is electrically connected with a display screen arranged on the shell. So that the hand wheel is operated to drive the screw rod to drive the sliding block to reciprocate along the screw rod, displacement data generated between the moving grid and the fixed grid on the sliding block is displayed on the display screen, the sliding block is driven to move while the moving core rod is inserted into the fixing part of the displacement sensor on the shell, voltage data is generated and displayed on the voltmeter, and the displacement sensor is tested and verified through the displacement data of the capacitive grid scale and the voltage data of the displacement sensor.
The shell is designed to be a rectangular body, two connecting rods which are symmetrically arranged in a cavity of the shell are respectively connected with two vertical plates, the two vertical plates are respectively provided with a bearing with a seat, the inner end of the screw rod is matched and connected with the bearing with the seat on one of the vertical plates, the outer end of the screw rod penetrates through a bearing with a shaft on the other vertical plate and then penetrates through a through hole arranged on the shell wall to be connected with the hand wheel, and the screw rod is in threaded connection with a nut arranged on the back face of the sliding block so as to drive the screw rod to rotate in the shell through the hand wheel.
The fixing piece is provided with a connecting hole, the outer end of the fixing piece is provided with a wiring terminal, and the fixing piece is electrically connected with a voltmeter arranged on the shell through the wiring terminal. For displaying the voltage data transmitted from the displacement sensor fixing member 14.
The sliding blocks are respectively provided with through holes matched with the connecting rods in a sliding mode, so that the sliding blocks can move stably when moving.
The fixed grid of the capacitance grid ruler is positioned on one side of the screw rod, and the movable grid is arranged on one side of the sliding block adjacent to the fixed grid.
The fixing piece of the displacement sensor is arranged on a vertical plate matched and connected with the inner end of the screw rod, and the core rod of the displacement sensor is arranged on the forward end face of the sliding block and matched and connected with the fixing piece of the displacement sensor.
A plurality of moving core rods of the moving sensors on the sliding block, corresponding fixing pieces and corresponding voltmeters can be arranged as required, so that the plurality of displacement sensors can be verified at the same time.
The utility model has the advantages of the following and the effect: adopt above-mentioned scheme, it removes to drive the slider through the hand wheel operation lead screw, it shows on the display screen to produce displacement data between the movable grid on the slider and the fixed grid, the slider drives when removing the removal plug and removes in displacement sensor's mounting, and the voltage data that will remove the induction when the plug removes shows on the voltmeter, through the data contrast, test and check-up the accuracy performance of displacement sensor, guarantee the check-up accuracy, and the device can carry out the check-up in step to a plurality of displacement sensor, improve work efficiency greatly. The method is an ideal checking device.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The utility model provides a linear displacement sensor calibration device, including the casing 1 that establishes cavity 5 in it, be equipped with the lead screw 12 that sets up slider 10 on it in the casing cavity 5, be equipped with the movable grid 11 of appearance bars scale and displacement sensor's removal plug 9 on the slider 10 respectively, be equipped with the fixed grid 13 that matches and connects with movable grid 11 in the casing cavity 5, be equipped with the mounting 14 of displacement sensor that matches and connects with removal plug 9 on the casing 1 wall; the shell 1 is a rectangular body, two connecting rods 8 which are symmetrically arranged in a cavity 5 of the shell are respectively connected with two vertical plates 6, the two vertical plates 6 are provided with bearings with seats, the inner end of a screw rod 12 is in rolling fit with the bearing with seats on one vertical plate 6, the outer end of the screw rod passes through a bearing with a shaft on the other vertical plate 6 and then passes through a through hole on the wall of the shell 1 to be connected with a hand wheel 4, the screw rod 12 is in threaded connection with a nut arranged on the back of a sliding block 10, so that after an operating handle 4 drives the screw rod 12 to rotate, the sliding block 10, a moving grid 11 on the sliding block and a moving core rod 9 are driven by the nut to synchronously move; the fixed part 14 is provided with a connecting hole, the outer end of the fixed part is provided with a wiring terminal 7, the fixed part 14 of the displacement sensor is electrically connected with the voltmeter 2 arranged on the shell 1 through the wiring terminal 7 and is used for displaying voltage data transmitted by the fixed part 14 of the displacement sensor, and the movable grid 11 of the capacitive grid ruler is electrically connected with the display screen 3 arranged on the shell 1 and is used for displaying displacement data of the sliding block 10; through holes matched with the connecting rods 8 in a sliding mode are respectively formed in the sliding blocks 10, the fixed grids 13 of the capacitive grid ruler are located on one side of the screw rod 12, and the movable grids 11 are arranged on one side of the sliding blocks 10 adjacent to the fixed grids 13; the fixing part 14 of the displacement sensor is arranged on the vertical plate 6 matched and connected with the inner end of the screw rod 12, and the core rod 9 of the displacement sensor is arranged on the forward end face of the sliding block 10 and matched and connected with the fixing part 14 of the displacement sensor.
Claims (6)
1. The linear displacement sensor calibration device comprises a shell with a cavity arranged therein, and is characterized in that a screw rod with a sliding block arranged thereon is arranged in the cavity of the shell, a movable grid of a capacitance grid scale and a movable core rod of a displacement sensor are respectively arranged on the sliding block, a fixed grid matched with the movable grid and a fixed part of the displacement sensor matched with the movable core rod are arranged in the cavity of the shell, the fixed part of the displacement sensor is electrically connected with a voltmeter arranged on the shell, and the movable grid of the capacitance grid scale is electrically connected with a display screen arranged on the shell.
2. The linear displacement sensor calibration device according to claim 1, wherein the housing is a rectangular body, the cavity of the housing is connected to two vertical plates through two symmetrically disposed connecting rods, the two vertical plates are provided with bearings with seats, the inner end of the screw rod is connected to the bearing with seat on one of the vertical plates, the outer end of the screw rod passes through the bearing with shaft on the other vertical plate and then through the through hole on the housing wall and then is connected to the hand wheel, and the screw rod is connected to the nut on the back of the sliding block by screw.
3. The linear displacement sensor calibration device of claim 1, wherein the fixing member has a connection hole, and a connection terminal is provided at an outer end thereof, through which the fixing member is electrically connected to a voltmeter provided on the housing.
4. The linear displacement transducer calibration device of claim 1, wherein the sliders are respectively provided with through holes for slidably engaging with the connecting rods.
5. The linear displacement sensor calibration device of claim 1, wherein the fixed grid of the capacitive grid scale is located on one side of the lead screw, and the movable grid is located on one side of the slider adjacent to the fixed grid.
6. The linear displacement sensor calibration device of claim 1, wherein the fixing member of the displacement sensor is disposed on a vertical plate coupled to the inner end of the screw rod, and the core rod of the displacement sensor is disposed on the forward end surface of the slider and coupled to the fixing member of the displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122124691.4U CN217179507U (en) | 2021-09-04 | 2021-09-04 | Linear displacement sensor calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122124691.4U CN217179507U (en) | 2021-09-04 | 2021-09-04 | Linear displacement sensor calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217179507U true CN217179507U (en) | 2022-08-12 |
Family
ID=82707881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122124691.4U Active CN217179507U (en) | 2021-09-04 | 2021-09-04 | Linear displacement sensor calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217179507U (en) |
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2021
- 2021-09-04 CN CN202122124691.4U patent/CN217179507U/en active Active
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