CN220983322U - Air gap adjusting device for speed sensor test - Google Patents
Air gap adjusting device for speed sensor test Download PDFInfo
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- CN220983322U CN220983322U CN202322259174.7U CN202322259174U CN220983322U CN 220983322 U CN220983322 U CN 220983322U CN 202322259174 U CN202322259174 U CN 202322259174U CN 220983322 U CN220983322 U CN 220983322U
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- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000005259 measurement Methods 0.000 claims abstract description 10
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- 230000033001 locomotion Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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Abstract
The utility model discloses an air gap adjusting device for testing a speed sensor, which comprises a frame, a control member, a grating ruler member, a sensor and a speed measuring gear, wherein the control member and the grating ruler member are connected to the frame; according to the utility model, the sliding of the sliding block is controlled by matching the screw transmission mode with the sliding rail so as to control the air gap, so that the device is more stable, the moving distance is measured by arranging the grating ruler, the measurement of the whole device belongs to a fully closed system, and compared with the traditional sliding table for an opening and closing system, the device is more accurate in measurement.
Description
Technical Field
The utility model relates to the technical field of Hall sensor testing, in particular to an air gap adjusting device for testing a speed sensor.
Background
The Hall type speed sensor is used as one of main speed measuring units of rolling stock, has larger weight and plays a role in controlling the rolling stock, the principle is that the rotating speed of a gear is tested through a Hall effect, a certain installation air gap exists between the gear and a sensor magnetic head in the installation process, the air gap distance can influence the index change of an output pulse signal, and the Hall type speed sensor is required to test the output pulse index within the air gap range of 0.3mm-2.0mm when the rolling stock is routinely checked according to iron marks;
before the air gap is adjusted, the air gap interval needs to be initialized and zeroed, the non-contact or automation cannot be realized in the zeroing process in the prior art, and normally, an electric conduction signal is generated at the moment that the magnetic head is contacted with the gear for zeroing, so that the magnetic head collides with the gear, the surface of the magnetic head is scratched, and the product defect is caused. The other is that automatic test cannot be realized by manual zeroing;
In the prior art, the displacement of the air gap is converted through the rotation angle of the servo motor, and is not closed-loop control, and installation gaps exist between the servo motor and a lead screw and gear structure inside a linear actuating mechanism in an actual mechanical structure. This would lead to inaccuracy in the air gap measurement.
Disclosure of utility model
The utility model aims to provide an air gap adjusting device for testing a Hall type speed sensor, which reduces manual operation steps, improves air gap measurement precision and improves sensor testing efficiency.
The utility model solves the technical problems by adopting the following technical scheme: the utility model provides an air gap adjusting device of speed sensor test, includes frame, control component, grating chi component, sensor, tachometer gear, control component, grating chi component are connected on the frame, the sensor passes through the sensor mounting panel to be connected on control component, tachometer gear sets up in the sensor below, department is equipped with the air gap between tachometer gear and the sensor.
Optionally, the control component includes fixed component, screw rod, slide rail, slider, regulator, fixed component one side fixed connection is on the frame, screw rod and slide rail set up respectively on fixed component, slider slidable connection is on the slide rail, slider threaded connection is on the screw rod, the top at the screw rod is connected to the regulator, the motion of regulator accessible rotatory screw rod control slider.
Optionally, the fixed component includes mount, a plurality of parallel arrangement's connection platform on the mount, the connection platform is connected on the one side that the frame was kept away from to the mount, slider and sensor mounting panel fixed connection, screw rod, slide rail pass through the connection platform and connect on the fixed component.
Optionally, the connection platform includes first connection platform, second connection platform, third connection platform, first connection platform is connected at mount side top, the second connection platform is connected and is close first connection platform position department in the mount side, the third connection platform is connected on mount side bottom, screw rod, slide rail bottom are connected on the top surface of third connection platform, the screw rod top passes second connection platform, first connection platform in proper order and is connected with the regulator, the slide rail top passes the second connection platform and is connected on first connection platform.
Optionally, the grating chi component includes grating chi body, grating chi reading instrument, grating chi body coupling is on the frame, parallel arrangement between grating chi body and the mount, the grating chi reading instrument is connected on the sensor mounting panel is close the mount side and is set up with the grating chi body cooperation, the sensor adopts hall formula speed sensor.
Optionally, the frame includes backplate, backup pad, limiting plate, the backup pad is extended to the backplate bottom to being close to control member direction, the backup pad is kept away from backplate one end and is upwards respectively, two lower directions extend limiting plate, the limiting plate top can be spacing to the sensor mounting panel.
Optionally, the regulator adopts manual handle, the regulator drives the screw rod rotation through manual rotation manual handle.
Optionally, the regulator adopts servo motor, the regulator drives the screw rod through servo motor and rotates.
Optionally, a displacement sensor mounting plate extends from the top surface of the limiting plate towards the back plate, and the displacement sensor mounting plate is connected with a laser displacement sensor.
The utility model has the following beneficial effects:
According to the utility model, the sliding of the sliding block is controlled by matching the screw transmission mode with the sliding rail so as to control the air gap, so that the device is more stable, the moving distance is measured by arranging the grating ruler, the measurement of the whole device belongs to a fully closed system, and compared with the traditional sliding table for an opening and closing system, the device is more accurate in measurement.
Drawings
FIG. 1 is a schematic view of the construction of embodiment 1 of the present utility model;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic view of the construction of embodiment 2 of the present utility model;
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is a right side view of FIG. 3;
The labels in the figures are: 1-a frame; 11-a back plate; 12-supporting plates; 13-limiting plates; 14-a displacement sensor mounting plate; 15-a laser displacement sensor;
2-a control member; 21-a fixing member; 22-screw; 23-sliding rails; 24-sliding blocks; 25-regulator; 211-fixing frame; 2121-first connection station; 2122-a second connection station; 2123-third connection station;
31-grating ruler body; 32-grating ruler reader;
4-a sensor; 41-a sensor mounting plate;
5-a speed measuring gear; 51-air gap.
Detailed Description
The technical scheme of the utility model is further described below with reference to the embodiment and the attached drawings.
Example 1
The embodiment provides an air gap adjusting device for testing a speed sensor, which comprises a frame 1, a control member 2, a grating ruler member, a sensor 4 and a speed measuring gear 5, wherein the control member 2 and the grating ruler member are connected to the frame 1, the sensor 4 is connected to the control member 2 through a sensor mounting plate 41, the sensor 4 is connected to the control member through the sensor mounting plate 41, the speed measuring gear 5 is arranged below the sensor 4, and an air gap 51 is arranged between the speed measuring gear 5 and the sensor 4.
Wherein, the control component 2 is used as a vertical actuating mechanism of the sensor mounting plate 41, the sensor 4 is mounted on the sensor mounting plate 41, and the air gap 51 between the magnetic head of the sensor 4 and the tachometer gear 5 is adjusted by the vertical movement of the sensor mounting plate 41.
In a further implementation manner of this embodiment, the control member 2 includes a fixing member 21, a screw 22, a sliding rail 23, a slider 24, and a regulator 25, where one side of the fixing member 21 is fixedly connected to the frame 1, the screw 22 and the sliding rail 23 are respectively disposed on the fixing member 21, the slider 24 is slidably connected to the sliding rail 23, the slider 24 is screwed on the screw 22, the regulator 25 is connected to the top end of the screw 22, and the regulator 25 can control the movement of the slider 24 by rotating the screw 22.
It should be noted that: the device further drives the sensor mounting plate 41 to vertically move by controlling the rotation of the screw 22 through the regulator 25, and the stability of the sensor mounting plate 41 in the moving process is improved by arranging the sliding rail 23.
In a further implementation manner of this embodiment, the fixing member 21 includes a fixing frame 211 and a plurality of connection platforms parallel to the fixing frame 211, the connection platforms are connected to a surface of the fixing frame 211 far away from the frame 1, the slider 24 is fixedly connected with the sensor mounting plate 41, and the screw 22 and the sliding rail 23 are connected to the fixing member 21 through the connection platforms.
In a further implementation manner of this embodiment, the connection platforms include a first connection platform 2121, a second connection platform 2122 and a third connection platform 3, the first connection platform 1 is connected at the top of the side surface of the fixing frame 211, the second connection platform 2 is connected at the position, close to the first connection platform 1, of the side surface of the fixing frame 211, the third connection platform 3 is connected to the bottom end of the side surface of the fixing frame 211, the bottom ends of the screw rod 22 and the slide rail 23 are connected to the top surface of the third connection platform 3, the top end of the screw rod 22 sequentially penetrates through the second connection platform 2122, the first connection platform 2121 is connected with the regulator 4, and the top end of the slide rail 23 penetrates through the second connection platform 2122 to be connected to the first connection platform 2121.
In a further implementation manner of this embodiment, the grating scale member includes a grating scale body 31 and a grating scale reader 32, the grating scale body 31 is connected to the frame 1, the grating scale body 31 and the fixing frame 211 are arranged in parallel, the grating scale reader 32 is connected to a side surface of the sensor mounting plate 41 close to the fixing frame 211 and is matched with the grating scale body 31, and the sensor 4 adopts a hall speed sensor.
In a further implementation manner of this embodiment, the frame 1 includes a back plate 11, a support plate 12, and a limiting plate 13, where the bottom end of the back plate 11 extends out of the support plate 12 toward the direction approaching the control member 2, one end of the support plate 12 away from the back plate 11 extends out of the limiting plate 13 in an upward direction and a downward direction, and the top end of the limiting plate 13 can limit the sensor mounting plate 41.
In a further implementation manner of this embodiment, the regulator 25 adopts a manual handle, and the regulator 25 rotates the screw 22 by manually rotating the manual handle.
The principle and operation steps of the present embodiment are described below: firstly, the screw 22 is synchronously rotated by rotating the manual handle regulator 25, and the screw 22 drives the sliding block 24 to vertically move, wherein the sliding rail 23 plays a role in stabilizing; the sensor mounting plate 41 is connected with the slide rail 23 through the slide block 24, and when the slide block 24 moves vertically, the sensor mounting plate 41 is driven to move synchronously; the Hall type speed sensor 4 to be measured is arranged on the sensor mounting plate 41, and the vertical movement is synchronously realized;
The tachometer gear 5 is driven to rotate by a motor, and the vertical distance is fixed, so that when the Hall type speed sensor 4 to be measured vertically moves, the air gap 51 between the sensor magnetic head and the tachometer gear 5 is enlarged or reduced;
When the sensor mounting plate 41 moves vertically, the driven grating scale reader 32 can measure the distance of relative movement, the air gap between the magnetic head of the sensor 4 and the speed measuring gear 5 is adjusted to be 0mm, the numerical value of the grating scale reader 32 is cleared, the manual handle regulator 25 is rotated to increase the air gap, and the numerical value of the grating scale reader 32 is the distance value of the actual air gap.
Example 2
This embodiment differs from embodiment 1 in that; the regulator 25 adopts a servo motor, and the regulator 25 drives the screw 22 to rotate through the servo motor; a displacement sensor mounting plate 14 extends from the top surface of the limiting plate 13 toward the back plate 11, and a laser displacement sensor 15 is connected to the displacement sensor mounting plate 14.
The principle and operation steps of the present embodiment are described below: the servo motor regulator 25, the screw 22, the slide rail 23 and the slide block 24 are used as a vertical displacement actuator of the sensor mounting plate 41; the measured Hall type speed sensor 4 is arranged on the sensor mounting plate 41, and the air gap adjustment of the sensor magnetic head and the speed measuring gear 5 is realized through the vertical movement of the sensor mounting plate 41.
The sensor mounting plate 41 is connected with the grating ruler reading instrument 32, the grating ruler reading instrument 32 is driven to move vertically through the vertical movement of the sensor mounting plate 41, and the displacement distance difference between the grating ruler reading instrument 32 and the grating ruler body 31 can be read, namely the displacement distance of the sensor mounting plate 41, namely the displacement distance of the magnetic head of the sensor 4.
The displacement sensor mounting plate 14 is provided with the laser displacement sensor 15, the laser irradiation corresponds to the air gap 51, when the air gap 51 is 0mm, the laser irradiates the magnetic head to be totally reflected to the receiving lens of the optical displacement sensor 15, when the air gap 51 is more than 0mm, as part of laser is not reflected by the air gap 51 or is scattered to the tachometer gear 5 after entering the air gap 51, the angle and the intensity of the laser reflected to the receiving lens can be changed, and finally an alternating current signal is output through a median filter, a high-pass filter, a moving average filter and a low-pass filter in the optical displacement sensor 15, and the change of the air gap can cause the change of the amplitude and the frequency of the output signal.
The device of this embodiment needs to learn the zero value of the air gap 51 before initializing to zero, so as to offset the installation errors of other structural components such as the laser displacement sensor 15 and the tachometer gear 5. A learning step:
1. A 0.01mm feeler gauge is plugged into the air gap 51, and the servo motor performs downward displacement until the magnetic head contacts the feeler gauge and the speed measuring gear 5; the servo motor judges whether the magnetic head contacts the speed measuring gear 5 and the feeler gauge through locked rotor current monitoring.
2. The feeler gauge is withdrawn, the air gap 51 between the head and the tachometer gear 5 is 0.01mm, and 0.01mm is taken as the zero value of the air gap 51.
3. The laser displacement sensor 15 is used for scanning the zero-value air gap 51, the scanning period is 10 um/time, and the repeated measurement precision is 0.02um. And (3) carrying out filtering treatment on the air gap 51 scanning data in 1s, wherein the filtering step is to discard more than 10% of deviation data exceeding the intermediate value, and carrying out average value operation on the rest reserved data to obtain the learned air gap zero value data.
Before the test task starts, initializing and zeroing are performed, the servo motor performs downward displacement, the laser displacement sensor 15 scans the air gap 51, and after the air gap 51 reaches zero value of the learned air gap, the initializing and zeroing step is completed.
The sequence of the above embodiments is only for convenience of description, and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (9)
1. The utility model provides an air gap adjusting device of speed sensor test, its characterized in that includes frame, control component, grating chi component, sensor, speed measurement gear, control component, grating chi component are connected on the frame, the sensor passes through the sensor mounting panel to be connected on control component, speed measurement gear sets up in the sensor below, the department is equipped with the air gap between speed measurement gear and the sensor.
2. The air gap adjusting device for speed sensor testing according to claim 1, wherein the control member comprises a fixing member, a screw, a slide rail, a slider, and a regulator, one side of the fixing member is fixedly connected to the frame, the screw and the slide rail are respectively disposed on the fixing member, the slider is slidably connected to the slide rail, the slider is screwed to the screw, the regulator is connected to the top end of the screw, and the regulator can control the movement of the slider by rotating the screw.
3. The air gap adjusting device for testing the speed sensor according to claim 2, wherein the fixing member comprises a fixing frame and a plurality of connecting tables arranged on the fixing frame in parallel, the connecting tables are connected to one surface of the fixing frame far away from the frame, the sliding block is fixedly connected with the sensor mounting plate, and the screw rod and the sliding rail are connected to the fixing member through the connecting tables.
4. The air gap adjusting device for speed sensor test according to claim 3, wherein the connection table comprises a first connection table, a second connection table and a third connection table, the first connection table is connected to the top of the side face of the fixing frame, the second connection table is connected to the side face of the fixing frame at a position close to the first connection table, the third connection table is connected to the bottom end of the side face of the fixing frame, the bottom end of the screw rod and the bottom end of the sliding rail are connected to the top face of the third connection table, the top end of the screw rod sequentially penetrates through the second connection table, the first connection table is connected with the regulator, and the top end of the sliding rail penetrates through the second connection table to be connected to the first connection table.
5. The air gap adjusting device for testing the speed sensor according to claim 4, wherein the grating scale member comprises a grating scale body and a grating scale reader, the grating scale body is connected to the frame, the grating scale body and the fixing frame are arranged in parallel, the grating scale reader is connected to the side surface of the sensor mounting plate, which is close to the fixing frame, and is matched with the grating scale body, and the sensor adopts a hall type speed sensor.
6. The air gap adjusting device for testing the speed sensor according to claim 5, wherein the frame comprises a back plate, a supporting plate and a limiting plate, the bottom end of the back plate extends out of the supporting plate towards the direction approaching the control member, the end, away from the back plate, of the supporting plate extends out of the limiting plate in an upward direction and a downward direction respectively, and the top end of the limiting plate can limit the sensor mounting plate.
7. The air gap adjustment device for speed sensor testing according to claim 6, wherein the regulator employs a manual handle, and the regulator rotates the screw by manually rotating the manual handle.
8. The air gap adjustment device for speed sensor testing according to claim 6, wherein the regulator employs a servo motor, and the regulator rotates a screw by the servo motor.
9. The air gap adjusting device for testing the speed sensor according to claim 8, wherein a displacement sensor mounting plate extends from the top surface of the limiting plate towards the back plate, and the displacement sensor mounting plate is connected with a laser displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322259174.7U CN220983322U (en) | 2023-08-22 | 2023-08-22 | Air gap adjusting device for speed sensor test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322259174.7U CN220983322U (en) | 2023-08-22 | 2023-08-22 | Air gap adjusting device for speed sensor test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220983322U true CN220983322U (en) | 2024-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322259174.7U Active CN220983322U (en) | 2023-08-22 | 2023-08-22 | Air gap adjusting device for speed sensor test |
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| Country | Link |
|---|---|
| CN (1) | CN220983322U (en) |
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2023
- 2023-08-22 CN CN202322259174.7U patent/CN220983322U/en active Active
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