CN220583598U

CN220583598U - Vibration sensor calibrating device

Info

Publication number: CN220583598U
Application number: CN202321934691.3U
Authority: CN
Inventors: 王雪杨; 李海滨; 王一鸣; 付翀; 赵伟明; 杨楠; 李晓东; 单海娣; 闫迪; 王子涵; 钱逸敏
Original assignee: Henan Institute Of Metrology And Testing Science
Current assignee: Henan Institute Of Metrology And Testing Science
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2024-03-12
Anticipated expiration: 2033-07-21

Abstract

The utility model relates to a vibration sensor calibration device, which comprises a device bracket, wherein a turntable with a rotation axis extending along the up-down direction is rotatably assembled on the device bracket, a dynamic calibration mechanism and a static calibration mechanism are arranged on the turntable at intervals along the circumferential direction, the dynamic calibration mechanism comprises a standard vibration table with the axis extending along the up-down direction, the static calibration mechanism comprises a calibration plate horizontally arranged and a calibration plate driving mechanism for driving the calibration plate to move up and down, a vertical column which is vertically arranged is also fixed on the device bracket, an installation cantilever is assembled on the vertical column in a guiding way along the up-down direction, and one end of the installation cantilever far away from the vertical column is provided with a sensor clamping structure for fixing a corresponding vibration sensor. The utility model provides a vibration sensor calibration device which is convenient for switching between dynamic calibration and static calibration when a vibration sensor is calibrated.

Description

Vibration sensor calibrating device

Technical Field

The utility model relates to the field of calibration and verification of sensors, in particular to a calibration device of a non-contact vibration sensor.

Background

The vibration sensor is also called a vibration probe and is mainly used for mechanical vibration measurement, and the quality of various industrial products is ensured in the modern industrial species which are highly developed.

As the sensor, the conventional vibration sensor is divided into a contact vibration sensor and a non-contact vibration sensor, and the contact vibration sensor is fixed on a measured object through magnetic attraction or other modes during use, so that the calibration is easy, and the vibration sensor is directly fixed on a standard vibration table.

For the non-contact vibration sensor, the non-contact vibration sensor needs to be fixed on a bracket when in use, and the measuring end faces the measured object, so that the direction of the measuring end is consistent with the vibration direction of the measured object. In calibrating such a non-contact vibration sensor, a bracket is required to fix the vibration sensor to ensure its measurement attitude with respect to a standard vibration table. The non-contact vibration sensor in the prior art is generally of a square structure, the length and the width of the vibration sensor of different types can be different, and the prior art lacks a bracket which can adapt to the vibration sensor of different sizes, so that the non-contact vibration sensor is very troublesome to fix during calibration in the prior art.

Meanwhile, in the process of calibrating the displacement sensor, the probe needs to be lifted in the process of checking the displacement, the labor intensity is extremely high by relying on manual labor, and the working efficiency is low; in other words, the calibration of the non-contact displacement sensor includes two forms of dynamic calibration and static calibration, the standard vibration table can complete the dynamic calibration, and when the static calibration is performed, a static calibration mechanism capable of outputting displacement is required, in the prior art, the standard vibration table and the static calibration mechanism are independent from each other, and the calibration is very inconvenient when the dynamic calibration and the static calibration are switched.

Disclosure of Invention

The utility model aims to provide a vibration sensor calibration device which is convenient for switching between dynamic calibration and static calibration when the vibration sensor is calibrated.

In order to solve the technical problems, the technical scheme of the vibration sensor calibration device in the utility model is as follows:

the utility model provides a vibration sensor calibrating device, including the device support, rotate the carousel that is equipped with the axis of rotation and extend along the upper and lower direction on the device support, be provided with dynamic calibration mechanism and static calibration mechanism along circumference interval on the carousel, dynamic calibration mechanism includes the standard shaking table that the axis extends along the upper and lower direction, static calibration mechanism includes the calibration board that the level set up and is used for driving the calibration board actuating mechanism that the calibration board reciprocated, still be fixed with the stand of vertical arrangement on the device support, along upper and lower direction removal being equipped with the installation cantilever on the stand, the one end that the installation cantilever kept away from the stand is provided with the sensor clamping structure that is used for fixed corresponding vibration sensor.

Further, the carousel is hollow structure, and calibration board actuating mechanism is including setting up the calibration board driving motor in the carousel inner chamber, and calibration board actuating mechanism still includes the calibration board driving screw that can reciprocate of vertical setting, and the calibration board is fixed in the top of calibration board driving screw, and calibration board actuating mechanism still includes the drive screw of rotating the assembly in the carousel inner chamber, drive screw and drive screw thread fit, and calibration board driving motor is connected with the drive screw transmission.

Further, the distance between the axis of the standard vibrating table and the axis of the turntable is the same as the distance between the axis of the calibration plate and the axis of the turntable.

Further, the stand sets up in the left side of carousel, and the front side of installation cantilever is fixed with first guide bar and the second guide bar that the direction of controlling interval arrangement extended along the fore-and-aft direction, and sensor clamping structure is including direction removal assembly front side grip block and the rear side grip block on first guide bar, second guide bar, and the opposite side of front side grip block, rear side grip block is used for pressing from both sides the corresponding side of corresponding vibration sensor, and sensor clamping structure is still including being used for forcing front side grip block, rear side grip block relative movement's clamping spring.

Further, the left side of first guide bar is fixed with left base plate, and the right side of second guide bar is fixed with right base plate, and left base plate, right base plate bilateral symmetry set up, and front side grip block, rear side grip block symmetry arrange in the front and back both sides of left side grip block, and the clamping spring is including connecting the front extension spring between left base plate, right base plate and front side grip block and connecting the rear extension spring between left base plate, right base plate and rear side grip block.

Further, a height adjusting block is assembled on the upright post in a guiding and moving way along the up-down direction, the installation cantilever is assembled on the height adjusting block in a guiding and moving way along the left-right direction, and a cantilever driving mechanism for driving the installation cantilever to move left and right is arranged on the height adjusting block.

The beneficial effects of the utility model are as follows: when the vibration sensor is used, the non-contact vibration sensor to be calibrated is vertically fixed on the sensor clamping structure, and as the dynamic calibration mechanism and the static calibration mechanism are both arranged on the turntable, when dynamic calibration is needed, the turntable is rotated, the standard vibration table is rotated to the lower side of the vibration sensor, the action output end of the standard vibration table outputs the vibration action with specified vibration amplitude and vibration frequency, and the vibration sensor detects the vibration, so that the dynamic calibration of the vibration sensor is realized; when static calibration is needed, the turntable is rotated, the calibration plate is rotated to the lower side of the vibration sensor, the calibration plate driving mechanism can drive the calibration plate to move up and down, the vibration sensor detects the up and down moving distance of the calibration plate, and the vibration sensor is subjected to static calibration by comparing the real moving distance of the calibration plate with the detection value of the vibration sensor. According to the utility model, the vibration sensor dynamic calibration and the static calibration are switched through rotation assembly, so that the vibration sensor dynamic calibration and the static calibration are very convenient, and time and labor are saved.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to like or corresponding parts and in which:

FIG. 1 is a schematic diagram of one embodiment of a vibration sensor calibration apparatus of the present utility model;

FIG. 2 is a top view of the turntable, dynamic calibration mechanism, static calibration mechanism of FIG. 1 mated;

FIG. 3 is a top view of the mounting boom of FIG. 1 mated with a sensor clamping mechanism;

FIG. 4 is a schematic diagram illustrating the cooperation of the calibration plate driving mechanism and the calibration plate of FIG. 1;

reference numerals illustrate: 1. a device holder; 2. a column; 3. installing a cantilever; 4. a height adjusting block; 5. a column screw; 6. a vibration sensor; 7. a standard vibration table; 8. a calibration plate; 9. a turntable; 10. a column side plate; 11. installing a cantilever driving gear; 12. a first guide bar; 13. a second guide bar; 14. a front clamping block; 15. a rear clamping block; 16. a left side substrate; 17. a right side substrate; 18. a front tension spring; 19. a rear tension spring; 20. the calibration plate drives a screw rod; 21. driving a nut; 22. the calibration plate drives the motor.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

An embodiment of a vibration sensor calibration device according to the present utility model is shown in fig. 1 to 4: the turntable 9, which comprises a device support 1, is rotatably provided with a turntable with a rotation axis extending in the up-down direction, is of a hollow structure, and in the embodiment, the turntable is not provided with an additional power mechanism, and a worker manually applies force to the turntable to rotate the turntable.

The dynamic calibration mechanism and the static calibration mechanism are arranged on the turntable at intervals along the circumferential direction, the dynamic calibration mechanism comprises a standard vibration table 7, the axis of which extends along the up-down direction, the static calibration mechanism comprises a calibration plate driving mechanism, the calibration plate driving mechanism is used for driving the calibration plate to move up and down, and the distance between the axis of the standard vibration table and the axis of the turntable is the same as the distance between the axis of the calibration plate and the axis of the turntable.

The device bracket is fixedly provided with a vertical column 2 which is vertically arranged on the left side of the turntable, one end, away from the vertical column, of the vertical column is provided with a mounting cantilever 3, which is assembled on the vertical column in a guiding and moving way, is provided with a sensor clamping structure for fixing a corresponding vibration sensor 6.

The calibration plate actuating mechanism is including setting up the calibration plate actuating motor 22 in the carousel inner chamber, and the vertical setting of calibration plate actuating motor 22, calibration plate actuating mechanism still include the calibration plate actuating screw 20 that can reciprocate of vertical setting, and calibration plate actuating screw 20 and the bottom plate of carousel end the rotating direction cooperation, and specifically, be provided with square guiding hole on the bottom plate of carousel, calibration plate actuating screw lower extreme have with square guiding hole adaptation end rotating complex square shaft section.

The calibrating plate 8 is fixed in the top of calibrating plate drive lead screw, and calibrating plate actuating mechanism still includes the drive screw 21 of rotating and assembling in the carousel inner chamber, and the drive screw rotates and assembles on the roof of carousel, drive screw and drive lead screw thread fit, and the periphery of drive screw is provided with the drive tooth, is fixed with on calibrating plate driving motor's the motor shaft with the motor shaft gear of drive tooth interlock transmission.

The stand includes front and back interval arrangement's stand curb plate 10, and the direction of stopping rotating along the upper and lower direction is equipped with height adjusting block 4 between two stand curb plates 10, and height adjusting block 4 is driven by height adjusting mechanism and can reciprocate, and height adjusting mechanism includes vertical setting's stand lead screw 5, and height adjusting mechanism still includes servo motor, and servo motor's power take off end is connected with the stand screw (not shown in the figure) with stand lead screw threaded connection, and stand screw constitutes lead screw mechanism with the stand lead screw, and lead screw mechanism is conventional drive mechanism, and no more detailed herein.

The installation cantilever 3 is assembled on the height adjusting block in a guiding and moving mode along the left-right direction, a rack is arranged on the front side of the installation cantilever, an installation cantilever driving gear 11 which is meshed with the rack and is driven by a corresponding installation cantilever driving motor is arranged on the height adjusting block, and therefore the installation cantilever is driven to move left and right. The rack, the mounting cantilever driving gear and the mounting cantilever driving motor form a cantilever driving mechanism for driving the mounting cantilever to move left and right.

One end of the installation cantilever far away from the upright post is provided with a sensor clamping structure for fixing a corresponding vibration sensor. The front side of the installation cantilever is fixed with a first guide rod 12 and a second guide rod 13 which are arranged at intervals left and right, the guide directions of which extend along the front and rear directions, the sensor clamping structure comprises a front clamping block 14 and a rear clamping block 15 which are assembled on the first guide rod 12 and the second guide rod 13 in a guiding and moving way, opposite sides of the front clamping block 14 and the rear clamping block 15 are used for clamping corresponding sides of corresponding vibration sensors, and the sensor clamping structure further comprises clamping springs used for forcing the front clamping block and the rear clamping block to move relatively. The left side of first guide bar is fixed with left base plate 16, and the right side of second guide bar is fixed with right base plate 17, and left base plate 16, right base plate 17 bilateral symmetry set up, and front side grip block, rear side grip block symmetry arrange in the front and back both sides of left side grip block, and the clamping spring is including connecting the front extension spring 18 between left base plate, right base plate and front side grip block and connecting the rear extension spring 19 between left base plate, right base plate and rear side grip block.

Through the arrangement of the left side base plate and the right side base plate, the front side clamping blocks and the rear side clamping blocks are arranged in a front-back symmetrical mode, when vibration sensors with different sizes are clamped, the vibration sensors can be guaranteed to be positioned at the middle positions in the front-back direction, and accordingly the corresponding relation between the vibration sensors, the standard vibration table and the calibration plate can be conveniently kept. Regardless of the size of the non-contact vibration sensor, the front clamping block and the rear clamping block can clamp and fix the vibration sensor, so that the universality is relatively good.

In the foregoing description of the present specification, the terms "fixed," "mounted," "connected," or "connected" are to be construed broadly, unless explicitly stated or limited otherwise. For example, in terms of the term "coupled," it may be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other. Therefore, unless otherwise specifically defined in the specification, a person skilled in the art can understand the specific meaning of the above terms in the present utility model according to the specific circumstances.

Those skilled in the art will also appreciate from the foregoing description that terms such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise" and the like are used herein for the purpose of facilitating description and simplifying the description of the present utility model, and thus do not necessarily have to have, configure, or operate in, the specific orientations, and thus are not to be construed or construed as limiting the present utility model.

In addition, the terms "first" or "second" and the like used in the present specification to refer to the numbers or ordinal numbers are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present specification, the meaning of "plurality" means at least two, for example, two, three or more, etc., unless explicitly defined otherwise.

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

1. A vibration sensor calibration device comprising a device holder, characterized in that: the device support is rotationally equipped with the carousel that the axis of rotation extends along the upper and lower direction, be provided with dynamic calibration mechanism and static calibration mechanism along circumference interval on the carousel, dynamic calibration mechanism includes the standard shaking table that the axis extends along the upper and lower direction, static calibration mechanism includes the calibration board that the level set up and is used for driving the calibration board actuating mechanism that the calibration board reciprocated, still be fixed with vertical arrangement's stand on the device support, along the upper and lower direction removal on the stand being equipped with the installation cantilever, the one end that the installation cantilever kept away from the stand is provided with the sensor clamping structure that is used for fixed corresponding vibration sensor.

2. The vibration sensor calibration apparatus of claim 1, wherein: the carousel is hollow structure, and calibration board actuating mechanism is including setting up the calibration board driving motor in the carousel inner chamber, and calibration board actuating mechanism still includes the calibration board driving screw that can reciprocate of vertical setting, and the calibration board is fixed in the top of calibration board driving screw, and calibration board actuating mechanism still includes the drive screw that rotates the assembly in the carousel inner chamber, drive screw and drive screw thread fit, and calibration board driving motor is connected with the drive screw transmission.

3. The vibration sensor calibration apparatus of claim 1, wherein: the distance between the axis of the standard vibrating table and the axis of the turntable is the same as the distance between the axis of the calibration plate and the axis of the turntable.

4. A vibration sensor calibration device according to any one of claims 1 to 3, characterized in that: the stand sets up in the left side of carousel, and the front side of installation cantilever is fixed with first guide bar and the second guide bar that the direction of the spacing arrangement was followed the fore-and-aft direction and is extended, and sensor clamping structure is including direction removal assembly front side grip block and rear side grip block on first guide bar, second guide bar, and the opposite side of front side grip block, rear side grip block is used for pressing from both sides the corresponding side of corresponding vibration sensor, and sensor clamping structure is still including being used for forcing front side grip block, rear side grip block relative movement's clamping spring.

5. The vibration sensor calibration apparatus of claim 4, wherein: the left side of first guide bar is fixed with left base plate, and the right side of second guide bar is fixed with right base plate, and left base plate, right base plate bilateral symmetry set up, and front side grip block, rear side grip block symmetry arrange in the front and back both sides of left side grip block, and the clamping spring is including connecting the front side extension spring between left base plate, right base plate and front side grip block and connecting the rear side extension spring between left base plate, right base plate and rear side grip block.

6. The vibration sensor calibration apparatus of claim 4, wherein: the upright post is provided with a height adjusting block along the vertical direction in a guiding and moving way, the installation cantilever is arranged on the height adjusting block along the left-right direction in a guiding and moving way, and the height adjusting block is provided with a cantilever driving mechanism for driving the installation cantilever to move left and right.