CN220366946U - Column type pressure sensor calibration device - Google Patents
Column type pressure sensor calibration device Download PDFInfo
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- CN220366946U CN220366946U CN202321843163.7U CN202321843163U CN220366946U CN 220366946 U CN220366946 U CN 220366946U CN 202321843163 U CN202321843163 U CN 202321843163U CN 220366946 U CN220366946 U CN 220366946U
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Abstract
The utility model discloses a column type pressure sensor calibration device which comprises a column type pressure sensor, a force applying mechanism connected with one end of the column type pressure sensor, a standard force measuring mechanism used for calibrating the column type pressure sensor and a connecting fixing plate, wherein the standard force measuring mechanism is positioned between the column type pressure sensor and the connecting fixing plate and can be disassembled and assembled, and the force applying mechanism is used for applying load to the column type pressure sensor. The device is quick and accurate in calibration, and the need of calibrating the sensor in a test system can be met without disassembling the column type pressure sensor, so that the calibration task is completed.
Description
Technical Field
The utility model belongs to the field of automobile test equipment, and particularly relates to a column type pressure sensor calibration device.
Background
The rear lower protecting device of the truck is used as a passive safety technical device which is efficient and easy to install, the casualties of small and medium-sized buses in accidents can be reduced to the greatest extent, and the static bearing capacity is used as an important parameter for evaluating the performance of the rear lower protecting device and is important for improving the safety performance of the truck. The column type tension pressure sensor is used as professional equipment for testing the static bearing capacity of the rear lower protective device of the truck, and the accuracy and reliability of the magnitude of the column type tension pressure sensor are related to the safety performance of the truck.
However, the current domestic column type tension pressure sensor has complicated calibration process, needs to be detached from the equipment and sent to a professional metering mechanism to be fixed on a professional calibration platform for calibration and calibration. Such calibration is time consuming and costly. After the sensor is detached from the equipment, the equipment cannot be used normally, and the normal use of the equipment is affected. Frequent disassembly and assembly of the sensor can also have adverse effects on the use of the sensor, and the sensor is separated from the calibration of the signal acquisition processing system, so that unknown errors can be introduced to the test result. Therefore, it is urgent to design a quick field-calibration column type pressure sensor calibration device.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a column type pressure sensor calibration device which is quick and accurate in calibration, and can meet the requirements of calibrating a sensor in a test system and complete calibration tasks without disassembling the column type pressure sensor.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a column type pressure sensor calibration device, includes column type pressure sensor, the force mechanism that links to each other with column type pressure sensor one end, is used for carrying out the standard force measurement mechanism and the connection fixed plate that mark column type pressure sensor, standard force measurement mechanism is located column type pressure sensor and connects between the fixed plate and can dismantle, force mechanism is used for applying the load to column type pressure sensor.
Preferably, the connection fixing plate can be detachably connected with the column type pressure sensor and the standard force measuring mechanism.
As the preferable scheme, the standard force measuring mechanism comprises a connector and a standard force sensor, wherein the first end of the connector is detachably connected with the column type pressure sensor, the second end of the connector is detachably connected with one end of the standard force sensor, and the other end of the standard force sensor is detachably connected with the connecting fixing plate.
As an optimal scheme, be provided with the sensor fixing base on the connection fixed plate, the sensor fixing base can be respectively with column type pressure sensor, standard force sensor adaptation connection.
As the preferable scheme, the force applying mechanism adopts a loading hydraulic cylinder, a cylinder body base of the loading hydraulic cylinder is fixed on the mounting seat, and a piston end of the loading hydraulic cylinder is connected with the column type pressure sensor.
As the preferred scheme, still include guiding mechanism, guiding mechanism includes a plurality of parallel arrangement's guide post and uide bushing, and the same end of guide post is all fixed to be set up on connecting the fixed plate, and the uide bushing is fixed to be set up on the mount pad and wears to establish on the guide post, and connecting the fixed plate can take place relative position along the length direction relative mount pad of guide post and change.
The automatic calibration device for the automobile engine is characterized by further comprising a calibration stud and a locking limit nut arranged at the external thread of the calibration stud, wherein one end of the calibration stud is fixedly connected with the mounting seat, the other end of the calibration stud penetrates through a through hole of the connection fixing plate, and the locking limit nut is screwed on one side of the connection fixing plate, which is opposite to the mounting seat.
As the preferable scheme, column type pressure sensor, connector, standard force sensor and sensor fixing base can link to each other through the screw pair in proper order, just column type pressure sensor and sensor fixing base can be through the screw pair direct link to each other.
Compared with the prior art, the utility model has at least the following beneficial effects:
the first scheme mainly comprises a column type pressure sensor, a force applying mechanism, a standard force measuring mechanism, a connecting fixing plate and the like, wherein one end of the column type pressure sensor is loaded by the force applying mechanism, the other end of the column type pressure sensor is connected with the standard force measuring mechanism, the column type pressure sensor is measured through the standard force measuring mechanism, after measurement is completed, the standard force measuring mechanism is taken down, and after the column type pressure sensor is connected with the connecting fixing plate, calibration is completed, and the calibration and calibration process is simple, accurate, quick and convenient. And the structure is compact, the processing cost is low, and the installation and the debugging are convenient.
Secondly, the scheme considers the convenience of disassembly and assembly before and after the standard force measurement, and a sensor fixing seat is arranged on the connecting and fixing plate, wherein the sensor fixing seat can be respectively matched with the column type pressure sensor and the standard force sensor, so that the convenience of butt joint before and after the disassembly and assembly of the standard force sensor is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a calibration device of the present utility model FIG. 1: with standard force measuring means;
FIG. 2 is a perspective view of the calibration device of the present utility model in FIG. 2: with standard force measuring means;
FIG. 3 is an exploded view of the calibration device of the present utility model: with standard force measuring means;
FIG. 4 is a cross-sectional view of a calibration device of the present utility model: with standard force measuring means;
FIG. 5 is a side view of a calibration device of the present utility model from a first perspective;
FIG. 6 is a side view of a second view of the calibration device of the present utility model;
FIG. 7 is a perspective view of the calibration device of the present utility model in FIG. 1: removing the standard force measuring mechanism;
FIG. 8 is a perspective view of the calibration device of the present utility model in FIG. 2: the standard force measuring mechanism is taken down:
the marks in the figure: 1. the hydraulic cylinder loading device comprises a loading hydraulic cylinder, 2, a guide post, 3, a mounting seat, 4, a guide sleeve, 5, a column type pressure sensor, 6, a connector, 7, a standard force sensor, 8, a sensor fixing seat, 9, a connecting fixing plate, 10, a calibration stud, 11, a locking limit nut, 12, a bolt A,13, a bolt B,14, a bolt C,15 and a bolt D.
Detailed Description
The utility model is described in detail below by way of exemplary embodiments. It is to be understood that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
It should be noted that: unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. As used in the specification and claims of this application, the terms "a," "an," and "the" and similar referents are not to be construed to limit the scope of at least one. The word "comprising" or "comprises", and the like, indicates that elements or items listed thereafter or equivalents thereof may be substituted for elements or items thereof in addition to those listed thereafter or equivalents thereof without departing from the scope of the word "comprising" or "comprising".
As shown in the figure, this embodiment provides a column type pressure sensor calibration device, including force applying mechanism, column type pressure sensor 5, standard force measuring mechanism and connection fixed plate 9, force applying mechanism, column type pressure sensor 5, standard force measuring mechanism and connection fixed plate 9 connect gradually and set up, specifically, the first end and the force applying mechanism of standard force measuring mechanism 5 link to each other, the second end can link to each other with standard force measuring mechanism or connection fixed plate 9, after standard force measuring mechanism installs on calibration device, can be used to mark column type pressure sensor 5, after the calibration is accomplished, standard force measuring mechanism is dismantled, column type pressure sensor 5 is connected with connection fixed plate 9, can be used to carry out the evaluation to the lower part protector static bearing capacity behind the truck.
In this scheme, standard force measuring mechanism is located column type pressure sensor 1 and connects between the fixed plate 9 and can dismantle, and standard force measuring mechanism's both ends adopt screw pair connection with column type pressure sensor 5, connection fixed plate 9 respectively, force applying mechanism is used for applying invariable load to column type pressure sensor 5 and standard force measuring mechanism to calibrate column type pressure sensor 5.
According to the scheme, the column type pressure sensor calibration device can adopt the following implementation modes: the column type pressure sensor calibration device comprises a loading hydraulic cylinder 1, a guide column 2, a mounting seat 3, a guide sleeve 4, a column type pressure sensor 5, a connector 6, a standard force sensor 7, a sensor fixing seat 8, a connecting fixing plate 9, a calibration stud 10 and a locking limit nut 11. The cylinder body base of the loading hydraulic cylinder 1 is fixed on the mounting seat 3 through a bolt A12, a piston rod of the loading hydraulic cylinder 1 is connected with the column type pressure sensor 5 through a thread pair, eight guide sleeves 4 are fixed on two sides of the mounting seat 3 through bolts B13 and are uniformly arranged, four guide sleeves 4 are respectively arranged on two sides of the mounting seat 3, and the guide sleeves 4 on two sides are correspondingly arranged. The four guide posts 2 are connected with the guide sleeve 4 through sliding connection pairs to provide guidance for the loading force of the loading oil cylinder 1. The guide post 2 and the guide sleeve 4 ensure that the load is vertically forward in the loading process, and no additional force in other directions is generated. The connection fixing plate 9 is fixedly connected with the guide post 2 through a bolt D15.
In this embodiment, the standard force measurement mechanism includes connector 6 and standard force sensor 7, connector 6 first end and column type pressure sensor 5 can dismantle and link to each other, and connector 6 second end and standard force sensor 7 one end can dismantle and link to each other, and standard force sensor 7 other end and connection fixed plate 9 can dismantle and be connected. Specifically, the following embodiments may be adopted: the connector 6 both ends all are provided with the external screw thread head, and column type draws pressure sensor 5 one end and is connected fixedly through screw thread pair and loading hydraulic cylinder 1, and the other end passes through screw thread pair with the first end of connector 6 and is connected. One end of the standard force sensor 7 is connected with the second end of the connector 6 through a screw pair, and the other end of the standard force sensor 7 is connected with the sensor fixing seat 8 through a screw pair. More specifically, the piston rod end of the column type pulling pressure sensor 5 is an external thread head, two ends of the connector 6 are both external thread heads, the connecting end of the sensor fixing seat 8 is provided with an adaptive external thread head, two ends of the column type pressure sensor 5 and the standard force sensor 7 are both internally threaded holes, and therefore connection and fixation of the components are realized through threaded pairs of the external thread heads and threaded holes of the sensors.
In this scheme, the sensor fixing base 8 is fixed to the connection fixing plate 9 by a bolt C14. The sensor fixing seat 8 can be respectively connected with the standard force sensor 7 and the column type pressure sensor 5 through screw pairs, and the purpose of the arrangement is that after the calibration is finished and the standard force measuring mechanism is disassembled, the column type pressure sensor 5 can be quickly abutted with the sensor fixing seat 8.
In this embodiment, 4 calibration studs 10 are provided, two ends of each calibration stud 10 are of external thread structures, one end of each calibration stud 10 is connected with the mounting seat 3 through a thread pair, and the other end of each calibration stud passes through a through hole of the connecting and fixing plate 9 and then is screwed with a locking limit nut 11. The locking limit nut 11 is manually screwed to be attached to one surface of the connection fixing plate 9 in the calibration process, and the connection fixing plate 9 can be effectively prevented from moving. Thereby establishing a loading force under the pushing of the loading hydraulic cylinder 1. Thus completing the calibration of the column pressure sensor 5.
The specific calibration process is as follows: after the connection is completed, the hydraulic system provided with the test bed supplies stable pressure oil for loading the hydraulic cylinder 1, constant load is applied to the column type pressure sensor 5 and the standard force sensor 7, and the load size can be set according to the calibration requirement. In the calibration process, a piston rod of the loading hydraulic cylinder 1 pushes the column type pressure sensor 5, the connector 6, the standard force sensor 7, the sensor fixing seat 8 and the connecting fixing plate 9 to move forwards. The guide post 2 and the guide sleeve 4 ensure that the load is vertically forward in the loading process, and no additional force in other directions is generated. The calibration stud 10 is matched with the locking limit nut 11 to limit the movement of the whole loading mechanism, so that the load is built, and the calibration operation is realized. The four locking limit nuts 11 are consistent with the distance between the connecting and fixing plates 9 during calibration operation. The calibration operation can be completed by changing the pressure of the pressure oil. The calibration state is shown in fig. 1-3. It should be noted that, during the loading process, the piston end of the loading hydraulic cylinder 1 applies a load, and the internal part of the sensor is slightly deformed after being stressed.
After the calibration is completed, the connector 6, the standard force sensor 7, the calibration stud 10 and the locking limit nut 11 are detached, the column type pressure sensor 5 is connected with the sensor fixing seat 8 through a thread pair, the sensor fixing seat 8 is fixed on the connection fixing plate 9 through a bolt C14, and the connection fixing plate 9 is horizontally moved towards the direction of the mounting seat 3 to be close based on the action of the guide sleeve 4 and the guide post 2 due to the fact that the calibration stud 10 and the locking limit nut 11 are detached, the distance between the connection fixing plate 9 and the mounting seat 3 is reduced, the test state can be quickly restored, and the state is shown in fig. 7-8.
The device can effectively calibrate the column pressure sensor on site without disassembly and with a system, and has the advantages of simple and accurate calibration process, short time consumption, compact structure, low processing cost and convenient installation and debugging.
The present utility model is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalent changes and variations in the above-mentioned embodiments can be made by those skilled in the art without departing from the scope of the present utility model.
Claims (8)
1. A column type pressure sensor calibration device is characterized in that: the device comprises a column type pressure sensor, a force applying mechanism connected with one end of the column type pressure sensor, a standard force measuring mechanism used for calibrating the column type pressure sensor and a connecting fixing plate, wherein the standard force measuring mechanism is located between the column type pressure sensor and the connecting fixing plate and can be disassembled and assembled, and the force applying mechanism is used for applying load to the column type pressure sensor.
2. A column pressure sensor calibration apparatus according to claim 1, wherein: the connecting and fixing plate can be detachably connected with the column type pressure sensor and the standard force measuring mechanism.
3. A column pressure sensor calibration apparatus according to claim 2, wherein: the standard force measuring mechanism comprises a connector and a standard force sensor, the first end of the connector is detachably connected with the column type pressure sensor, the second end of the connector is detachably connected with one end of the standard force sensor, and the other end of the standard force sensor is detachably connected with the connecting fixing plate.
4. A column pressure sensor calibration apparatus according to claim 3, wherein: the sensor fixing seat is arranged on the connecting fixing plate and can be respectively connected with the column type pressure sensor and the standard force sensor in an adaptive manner.
5. A column pressure sensor calibration apparatus according to any one of claims 1-4, wherein: the force applying mechanism adopts a loading hydraulic cylinder, a cylinder body base of the loading hydraulic cylinder is fixed on the mounting seat, and a piston end of the loading hydraulic cylinder is connected with the column type pressure sensor.
6. The column pressure sensor calibration apparatus of claim 5, wherein: still include guiding mechanism, guiding mechanism includes a plurality of parallel arrangement's guide post and uide bushing, and the same end of guide post is all fixed to be set up on connecting the fixed plate, and the uide bushing is fixed to be set up on the mount pad and wears to establish on the guide post, and connecting the fixed plate can take place relative position change along the length direction relative mount pad of guide post.
7. The column pressure sensor calibration apparatus of claim 5, wherein: the automatic calibration device is characterized by further comprising a calibration stud and a locking limit nut arranged at the external thread of the calibration stud, wherein one end of the calibration stud is fixedly connected with the mounting seat, the other end of the calibration stud passes through a through hole of the connection fixing plate, and the locking limit nut is screwed on one side of the connection fixing plate, which is opposite to the mounting seat.
8. The column pressure sensor calibration apparatus of claim 5, wherein: the column type pressure sensor, the connector, the standard force sensor and the sensor fixing seat can be connected in sequence through the screw thread pair, and the column type pressure sensor and the sensor fixing seat can be directly connected through the screw thread pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321843163.7U CN220366946U (en) | 2023-07-13 | 2023-07-13 | Column type pressure sensor calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321843163.7U CN220366946U (en) | 2023-07-13 | 2023-07-13 | Column type pressure sensor calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220366946U true CN220366946U (en) | 2024-01-19 |
Family
ID=89512634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321843163.7U Active CN220366946U (en) | 2023-07-13 | 2023-07-13 | Column type pressure sensor calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220366946U (en) |
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2023
- 2023-07-13 CN CN202321843163.7U patent/CN220366946U/en active Active
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