CN210136245U - Speed measuring device for large-scale precision impact test - Google Patents
Speed measuring device for large-scale precision impact test Download PDFInfo
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- CN210136245U CN210136245U CN201921160231.3U CN201921160231U CN210136245U CN 210136245 U CN210136245 U CN 210136245U CN 201921160231 U CN201921160231 U CN 201921160231U CN 210136245 U CN210136245 U CN 210136245U
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Abstract
The utility model relates to a speed sensor for large-scale precision impact test, include: stand, elevating system, riser, horizontal connecting plate, the board that tests the speed, locating lever, hall sensor and magnet, the stand set up perpendicularly on the impact test system mesa of striking module one side, but the elevating system of vertical lift installs on the stand, horizontal connecting plate one end link firmly with elevating system through the riser, other end upper portion is provided with the board that tests the speed of perpendicular to horizontal connecting plate, the board that tests the speed on from the top down set gradually the hall sensor of equidistance, the board lower part that tests the speed still is provided with the logical groove of perpendicular to board that tests the speed, the locating lever wear to establish at logical inslot and with logical groove clearance fit, magnet fixed mounting in one side of striking module and with the lower terminal surface parallel and level of striking module. The utility model discloses the biggest impact velocity when can accurately surveying the striking, the measuring result accuracy is high.
Description
Technical Field
The utility model relates to an impact test technique specifically is a speed sensor for large-scale precision impact test.
Background
In a large-scale precision impact test, in order to ensure the synchronism of a plurality of impact modules, the energy storage parameters of the enterprise driver need to be adjusted according to the actual impact speed and the impact process time, so that the impact time and speed need to be accurately measured, and the control parameters can be accurately adjusted. According to the technical requirements of large-scale precise impact tests, the highest impact speed of the impact module is not lower than 66m/s, and the distance from zero to the maximum speed of the hydraulic drive device is only about 500mm, so that the acceleration is very large (thousands of g). Under the working condition, no commercial measuring equipment can meet the measuring requirement at home and abroad.
At present, the commonly used speed measuring devices include video speed measurement, radar speed measurement and laser speed measurement. The video speed measurement uses a high-speed camera, the laser speed measurement uses a laser sensor, and both the two devices are very easy to damage under the strong vibration of a large-scale impact test; the radar speed measurement is usually about tens of meters due to the large induction distance, and is not suitable for short-distance accurate speed measurement.
Disclosure of Invention
The utility model aims at providing a speed sensor for large-scale accurate impact test through adopting the hall sensor that anti-vibration moved, utilizes the average velocity measurement method, and indirect calculation obtains the impact velocity size, and this device can be along with carrying out corresponding adjustment according to the position of striking face for the striking face just in time with measuring sensor's measuring face parallel and level, thereby the biggest impact velocity when accurately recording the striking, and the measuring result accuracy is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a speed sensor for large-scale precision impact test, includes: stand, elevating system, riser, horizontal connecting plate, the board that tests the speed, locating lever, hall sensor and magnet, the stand set up perpendicularly on the impact test system mesa of striking module one side, but the elevating system of vertical lift installs on the stand, horizontal connecting plate one end link firmly with elevating system through the riser, other end upper portion is provided with the board that tests the speed of perpendicular to horizontal connecting plate, the board that tests the speed on from the top down set gradually the hall sensor of equidistance, the board lower part that tests the speed still is provided with the logical groove of perpendicular to board that tests the speed, the locating lever wear to establish at logical inslot and with logical groove clearance fit, magnet fixed mounting in one side of striking module and with the lower terminal surface parallel and level of striking module.
The lifting mechanism consists of a base, a lead screw nut pair, guide rails, a sliding block and a hand wheel, wherein the lead screw nut pair is installed on the upright post through the base; the vertical plate is fixedly connected with the sliding block.
The lower end of the speed measuring plate is fixedly connected with the horizontal connecting plate, and the lower side wall of the through groove at the lower part of the speed measuring plate is coplanar with the upper surface of the horizontal connecting plate.
The vertical distance between the Hall sensor at the lowermost end of the speed measuring plate and the horizontal connecting plate is equal to zero.
The utility model has the advantages that: the utility model discloses a hall sensor that anti-vibration utilizes the average velocity measurement method, and indirect calculation obtains the impact velocity size, and this device can carry out corresponding adjustment along with the position according to the striking face for the striking face just in time with measuring sensor's measuring face parallel and level, thereby the maximum impact velocity when accurately recording the striking, and the measuring result accuracy is high.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a side view of the middle velocity measuring plate and the horizontal connecting plate of the present invention.
In the figure, the device comprises a vertical column 1, a vertical plate 2, a vertical plate 3, a horizontal connecting plate 4, a speed measuring plate 401, a through groove 5, a positioning rod 6, a Hall sensor 7, a magnet 801, a base 802, a screw nut pair 803, a guide rail 804, a sliding block 805, a hand wheel 9 and an impact module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a speed measuring device for large-scale precision impact test includes: stand 1, elevating system, riser 2, horizontal connecting plate 3, the board 4 that tests the speed, locating lever 5, hall sensor 6 and magnet 7, stand 1 set up perpendicularly on the impact test system mesa of 9 one sides of striking module, but the elevating system of vertical lift installs on stand 1, 3 one end of horizontal connecting plate link firmly with elevating system through riser 2, other end upper portion is provided with the board 4 that tests the speed of perpendicular to horizontal connecting plate 3, the board 4 that tests the speed on from the top down set gradually the hall sensor 6 of equidistance, the board 4 lower part that tests the speed still is provided with the logical groove 401 that the board 4 tested the speed of perpendicular to, locating lever 5 is worn to establish and is led to inslot 401 and with logical groove 401 clearance fit, 7 fixed mounting of magnet in one side of striking module 9 and with the lower terminal surface parallel and level of striking module 9.
The lifting mechanism is composed of a base 801, a lead screw nut pair 802, guide rails 803, sliding blocks 804 and a hand wheel 805, wherein the lead screw nut pair 802 is installed on the upright post 1 through the base 801, the guide rails 803 parallel to the lead screw are arranged on both sides of the lead screw, the sliding blocks 804 fixedly connected on a nut connecting plate are in sliding fit with the guide rails 803 on both sides of the lead screw, the hand wheel 805 for driving the lead screw is arranged at the upper end of the lead screw, and a locking mechanism for locking the lead screw to rotate is arranged on the hand wheel 805; the vertical plate 2 is fixedly connected with the sliding block 804.
The lower end of the speed measuring plate 4 is fixedly connected with the horizontal connecting plate 3, and the lower side wall of the through groove 401 at the lower part of the speed measuring plate 4 is coplanar with the upper surface of the horizontal connecting plate 3.
The vertical distance between the hall sensor 6 at the lowest end of the speed measuring plate 4 and the horizontal connecting plate 3 is equal to zero.
The part of the utility model not detailed is prior art.
Claims (4)
1. A speed sensor for large-scale precision impact test, includes: stand, elevating system, riser, horizontal connecting plate, the board that tests the speed, locating lever, hall sensor and magnet, the stand set up perpendicularly on the impact test system mesa of striking module one side, but elevating system of vertical lift installs on the stand characterized by: horizontal connection board one end link firmly through riser and elevating system, other end upper portion is provided with the board that tests the speed of perpendicular to horizontal connection board, the board that tests the speed on from the top down set gradually the equidistant hall sensor, the board lower part that tests the speed still is provided with the logical groove of the perpendicular to board that tests the speed, the locating lever wear to establish logical inslot and with logical groove clearance fit, magnet fixed mounting in one side of striking module and with the lower terminal surface parallel and level of striking module.
2. A velocity measurement device for large-scale precision impact test according to claim 1, wherein: the lifting mechanism consists of a base, a lead screw nut pair, guide rails, a sliding block and a hand wheel, wherein the lead screw nut pair is installed on the upright post through the base; the vertical plate is fixedly connected with the sliding block.
3. A velocity measurement device for large-scale precision impact test according to claim 1, wherein: the lower end of the speed measuring plate is fixedly connected with the horizontal connecting plate, and the lower side wall of the through groove at the lower part of the speed measuring plate is coplanar with the upper surface of the horizontal connecting plate.
4. A velocity measurement device for large-scale precision impact test according to claim 1, wherein: the vertical distance between the Hall sensor at the lowermost end of the speed measuring plate and the horizontal connecting plate is equal to zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921160231.3U CN210136245U (en) | 2019-07-23 | 2019-07-23 | Speed measuring device for large-scale precision impact test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921160231.3U CN210136245U (en) | 2019-07-23 | 2019-07-23 | Speed measuring device for large-scale precision impact test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210136245U true CN210136245U (en) | 2020-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921160231.3U Active CN210136245U (en) | 2019-07-23 | 2019-07-23 | Speed measuring device for large-scale precision impact test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210136245U (en) |
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2019
- 2019-07-23 CN CN201921160231.3U patent/CN210136245U/en active Active
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