CN109916466B - Verification or calibration to be detected flowmeter installation centering device - Google Patents
Verification or calibration to be detected flowmeter installation centering device Download PDFInfo
- Publication number
- CN109916466B CN109916466B CN201910164358.0A CN201910164358A CN109916466B CN 109916466 B CN109916466 B CN 109916466B CN 201910164358 A CN201910164358 A CN 201910164358A CN 109916466 B CN109916466 B CN 109916466B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- fixedly connected
- convex strip
- calibration
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The invention provides a device for calibrating or calibrating the installation and centering of a detected flowmeter, and relates to the technical field of measurement. The rack body is respectively and symmetrically connected with a front connecting rod, a rear connecting rod, a left connecting rod and a right connecting rod, the upper ends of the connecting rods are respectively and fixedly connected with a connecting lead screw, the lower ends of the connecting rods are fixedly connected with a clamping claw, the rotating shaft is fixedly connected with a pair of stepped turbines, the connecting lead screw is respectively meshed with the stepped turbines, the front connecting rod is fixedly connected with a convex strip, the rear connecting rod is fixedly connected with a groove, and the convex strip is spliced. The invention solves the technical problems that the calibration or calibration precision is influenced and the potential safety hazard exists because the alignment of the to-be-detected flowmeter and the pipeline is not accurate enough during the calibration or calibration in the prior art. The invention has the beneficial effects that: the alignment accuracy of the detected flowmeter and the standard device pipeline is ensured, and the verification or calibration precision is ensured. The automatic detection device has the advantages of no need of manual intervention, simplicity in operation and convenience in use, improves detection or calibration efficiency, reduces labor intensity, and eliminates potential safety hazards of personnel injury.
Description
Technical Field
The invention relates to the technical field of measurement, in particular to a device for aligning a detected flowmeter and a pipeline when the detected flowmeter is installed on verification or calibration equipment.
Background
The flowmeter is widely applied to various aspects such as industry, agriculture, national defense, scientific research, production and life of people and the like, and is an important flow metering appliance. The flowmeter is easily subjected to the influence of factors such as environment and the like during use, so that the flowmeter needs to be verified or calibrated by a third-party verification or calibration mechanism within a specified period, and the metering reliability and accuracy of the flowmeter are ensured. When the verification or calibration of the flowmeter is carried out, the flowmeter to be detected needs to be installed in a flow standard device. The flow meter to be tested needs to be aligned with the center of the standard device during installation. Otherwise, large deviation of the verification/calibration result is caused, and the verification/calibration is inaccurate. Currently, the alignment between the meter to be tested and the standard device is generally realized by judging with naked eyes and manually adjusting the position of the meter to be tested. Thus, there are the following problems: the centering is not accurate enough, which affects the verification or calibration precision. Repeated adjustment is needed, and the efficiency is low. The manual work is needed to be finished, the personnel injury is easily caused, and the potential safety hazard exists.
Disclosure of Invention
The invention provides a calibrating or calibrating flow meter mounting and centering device, which aims to solve the technical problems that the mounting and centering of a tested flow meter and a pipeline are not accurate enough, manual multiple adjustment is needed, the calibrating or calibrating precision is influenced, the efficiency is low, and potential safety hazards exist in the prior art.
The technical scheme of the invention is as follows: a device for calibrating and installing the tested flowmeter comprises a frame body and a rotating shaft, wherein the frame body is in a U shape, two side surfaces of the frame body are respectively and symmetrically connected with a front left connecting rod, a front right connecting rod, a rear left connecting rod, a rear right connecting rod, a front left connecting screw rod, a rear right connecting screw rod, a front left connecting screw rod, a rear right connecting screw rod, a claw are fixedly connected to the lower ends of the front connecting rod and the rear connecting rod, the rotating shaft is fixedly connected with a pair of stepped turbines, the front left connecting screw rod and the front right connecting screw rod are meshed with one stepped turbine, the rear left connecting screw rod and the rear right connecting screw rod are meshed with the other stepped turbine, the center of a geometric image formed by fixedly connecting the front left connecting rod and the right claw and the center of a geometric image formed by fixedly connecting the rear left connecting rod and the rear right connecting rod are positioned on a straight, The right groove is inserted.
Preferably, the front left and right connecting rods are U-shaped, the cross sections of the left and right convex strips are dovetail-shaped, and the left and right convex strips protrude the rear side surfaces of the front left and right connecting rods.
Preferably, the rear left connecting rod and the rear right connecting rod are in a U shape, the left groove and the right groove are dovetail grooves, and the left groove and the right groove are fixed with the front side surfaces of the rear left connecting rod and the rear right connecting rod.
Preferably, the stepped turbine comprises a cylindrical rod and a short turbine which are coaxially connected, and the diameter of the cylindrical rod is smaller than the diameter of the addendum circle of the short turbine.
Preferably, the jaw is K-shaped, and a vertical portion of the jaw is fixed to lower ends of the front and rear links.
Compared with the prior art, the invention has the beneficial effects that: the alignment accuracy of the detected flowmeter and the standard device pipeline is ensured, and the verification or calibration precision is ensured. The automatic detection device has the advantages of no need of manual intervention, simplicity in operation and convenience in use, improves detection or calibration efficiency, reduces labor intensity, and eliminates potential safety hazards of personnel injury.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the split jaw;
FIG. 3 is a perspective view of the separating jaws at different distances;
FIG. 4 is a view taken along line A of FIG. 2;
FIG. 5 is a schematic view of a connection between a connecting screw and a worm gear;
FIG. 6 is a schematic view of another connection screw rod and a turbine;
FIG. 7 is a cross-sectional view taken at C-C of FIG. 4;
fig. 8 is an enlarged view of D in fig. 2.
In the drawing, the device comprises a frame body 1, a front left connecting rod 2L, a front right connecting rod 2R, a rear left connecting rod 3L, a rear right connecting rod 3R, a rotating shaft 4, a jaw 5, a lifting lug 11, a turbine box 12, a left convex strip 2L 1, a right convex strip 2R1, a front left connecting screw rod 2L 2, a front right connecting screw rod 2R2, a left groove 3L 1, a right groove 3R1, a rear left connecting screw rod 3L 2, a rear right connecting screw rod 3R2, a step turbine 41, a cylindrical rod 411 and a short turbine 412.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1:
as shown in fig. 1-8, a centering device for calibrating or calibrating a flow meter to be tested comprises a frame body 1 and a rotating shaft 4. The frame body 1 is U-shaped. The bottom of the frame body 1 is upward, the left side surface and the right side surface are vertical to the bottom, and the opening of the frame body is downward. The outer surface of the bottom of the frame body 1 is connected with a lifting lug 11, so that the frame body 1 can be conveniently moved. The inner surface of the bottom of the frame body 1 is fixedly connected with a turbine box 12.
The rotating shaft 4 is a cylinder, and the central axis is parallel to the left side surface and the right side surface of the frame body 1. The two ends of the rotating shaft 4 extend out of the turbine box 12. A rotating shaft handle is fixedly connected with the rotating shaft 4 extending out of the front end of the turbine box 12.
In fig. 2 and 3, the end of the frame body 1 with the rotating shaft 4 and the rotating shaft handle is the front end of the frame body 1 facing the reader; the right side of the figure is the right side of the frame body 1; on the left side of the figure is the frame body 1. In fig. 1, the rear end of the frame 1 faces the reader.
The shaft 4 is fixed with a pair of stepped turbines 41. A pair of stepped turbines 41 are located within the turbine case 12. The stepped worm gear 41 includes a cylindrical shaft 411 and a short worm gear 412. One end of the cylindrical rod 411 is fixed with one end of the short turbine 412. The central axis of the cylindrical rod 411 coincides with the central axis of the short turbine 412. The diameter of cylindrical rod 411 is smaller than the diameter of the addendum circle of short worm gear 412. The pair of stepped turbines 41 are fixedly fitted to the rotary shaft 4. A pair of stepped turbines 41 are spaced apart. The pair of stepped turbines 41 may be connected to the rotating shaft 4 in such a manner that the short turbines 412 are arranged to face each other, or the cylindrical shafts 411 are arranged to face each other. The figures show the short worm gears 412 arranged face to face, i.e. the cylindrical shaft 411 of one worm gear 41 is near the rear end of the frame body 1, and the cylindrical shaft 411 of the other worm gear 41 is near the front end of the frame body 1, i.e. near the handle end of the rotating shaft.
The left and right side surfaces of the frame body 1 are respectively and symmetrically connected with a front left connecting rod 2L and a front right connecting rod 2R, a rear left connecting rod 3L and a rear right connecting rod 3R, the upper ends of the front left connecting rod 2L and the front right connecting rod 2R, the upper ends of the rear left connecting rod 2L and the rear right connecting rod 2R2 are respectively and fixedly connected with a front left connecting screw rod 2 and a rear left connecting screw rod 2R, and the upper ends of the rear left connecting rod 3L and the rear right connecting screw rod 3L and the rear right connecting screw rod 3R2 are respectively and fixedly connected with a step turbine 41 close to the front end of the frame body 1, the front left connecting rod 3L and the rear right connecting screw rod 3R2 are respectively and fixedly connected with a rear left connecting rod 3L and a rear left connecting screw rod 3R 24 and a rear right connecting screw rod 3R2, and the rear left connecting screw rod 3R2, and the rear right connecting screw rod 3L and the rear 3R2 are respectively and engaged with the step turbine 41 close to the rear end of the frame body 1, the rear left connecting rod 3R 62 and the rear left connecting rod 3R and right connecting rod 3R are fixedly connected with a left groove L and right groove 6851, the front connecting rod 5, the rear connecting rod 5.
The front left connecting rod 2L and the front right connecting rod 2R are a pair, the front left connecting rod 2L and the front right connecting rod 2R are U-shaped, the opening of the front left connecting rod 2L faces to the right, the opening of the front right connecting rod 2R faces to the left, the upper end of the front left connecting rod 2L passes through the left side surface of the frame body 1 and is fixed with the left end of the front left connecting screw rod 2L, the front left connecting rod 2L is close to the front end of the left side surface of the frame body 1, the right end of the front left connecting screw rod 2L passes through the turbine box 12 and is engaged with the teeth at the upper end of the stepped turbine 41 close to the front end of the frame body 1, the lower end surface of the front left connecting rod 2L is fixed with the back surface of the vertical part of the claw 5, the left protruding strip 2L 1 is fixed with the back side surface of the front left connecting rod 2L, the cross section of the left protruding strip 2 961 is dovetail, the upper end of the left protruding strip 2L 1 protrudes from the front left connecting rod 2L, the upper end of the right connecting rod 2R passes through the right side surface of the frame body 1 and is fixed with the front right connecting rod 2, the front end of the front right connecting rod 2R, the front connecting rod 2R is engaged with the front end of the front side surface of the front right connecting rod 2R, the front connecting rod 2.
The rear left connecting rod 3L and the rear right connecting rod 3R are a pair, the rear left connecting rod 3L and the rear right connecting rod 3R are U-shaped, the opening of the rear left connecting rod 3L faces to the right, the opening of the rear right connecting rod 3R faces to the left, the upper end of the rear left connecting rod 3L penetrates through the left side surface of the frame body 1 and is fixed with the left end of the rear connecting screw rod 3L, the rear left connecting rod 3L is close to the rear end of the left side surface of the frame body 1, the right end of the rear left connecting screw rod 3L 2 penetrates through the turbine box 12 and is meshed with the teeth at the upper end of the stepped turbine 41 close to the rear end of the frame body 1, the lower end surface of the rear left connecting rod 3L is fixed with the back surface of the vertical part of the jaw 5, the left groove 3L is a dovetail groove, the left groove 3L 1 is fixed with the front side surface of the rear left connecting rod 3L, the upper end of the rear right connecting rod 3R penetrates through the right side surface of the frame body 1 and is fixed with the right connecting screw rod 3R2, the rear right connecting rod 3R is meshed with the rear end of the rear right groove 1 of the rear right groove of the rear right connecting rod 3R 3.
The geometric image center formed by fixedly connecting a pair of claws 5 with the front left and right connecting rods 2L and 2R and the geometric image center formed by fixedly connecting a pair of claws 5 with the rear left and right connecting rods 3L and 3R are positioned on a straight line parallel to the central axis of the rotating shaft 4, the centers of rhombuses enclosed by two inclined surfaces of the claws 5 fixedly connected with the front left connecting rod 2L and two inclined surfaces of the claws 5 fixedly connected with the front right connecting rod 2R and the centers of rhombuses enclosed by two inclined surfaces of the claws 5 fixedly connected with the rear left connecting rod 3L are positioned on the same straight line, the straight line is parallel to the central axis of the rotating shaft 4, the left and right convex strips 2L 1 and 2R1 are respectively inserted into the left and right grooves 3L 1 and 3R1, the left convex strip 2L 1 is inserted into the left groove 3L 1, and the right convex strip 2R1 is inserted into the right groove 3R 1.
When the adjustable ladder type rotating shaft is used, the front and back positions of the rotating shaft 4 are adjusted, the ladder turbine 41 at the front end of the frame body 1 is meshed with the front left connecting screw rod 2L 2 and the front right connecting screw rod 2R2, the ladder turbine 41 at the back end of the frame body 1 is meshed with the back left connecting screw rod 3L 2 and the back right connecting screw rod 3R2 (shown in figure 4), the rotating shaft handle is shaken to rotate the rotating shaft 4, the rotating shaft 4 drives the ladder turbine 41 to rotate, the front left connecting rod 2L and the front right connecting rod 2R, the back left connecting rod 3L and the back right connecting rod respectively move towards the left direction and the right direction of the frame body 1, and the clamping jaws 5 fixed with the front connecting rod, the back connecting rod, the left connecting rod and the right connecting.
The connecting pipe orifice of the detected flowmeter (not shown) is arranged between the jaws 5 connected with the front left connecting rod 2L and the front right connecting rod 2R, the front and back positions of the rotating shaft 4 are adjusted, the short turbine 412 of the stepped turbine 41 at the front end of the frame body 1 is meshed with the front left connecting screw rod 2L 2 and the front right connecting screw rod 2R2, the short turbine 412 of the stepped turbine 41 at the back end of the frame body 1 is separated from the back left connecting screw rod 3L 2 and the back right connecting screw rod 3R2 and is placed on the side surface of the column 411 (as shown in figure 6), the rotating shaft 4 is rotated, and the connecting pipe orifice of the detected flowmeter is embraced by the four inclined surfaces of the two jaws 5 (as shown in figure 3).
The frame body 1 and the detected flowmeter connected with the frame body 1 are moved to a standard device pipeline together, a pipeline port (not shown) of the standard device is arranged between clamping jaws 5 connected with a rear left connecting rod 3L and a rear right connecting rod 3R, the front and rear positions of a rotating shaft 4 are adjusted, a short turbine 412 of a stepped turbine 41 at the rear end of the frame body 1 is meshed with a rear left connecting screw rod 3L 2 and a rear right connecting screw rod 3R2, the short turbine 412 of the stepped turbine 41 at the front end of the frame body 1 is separated from a front left connecting screw rod 2L 2 and a front right connecting screw rod 2R2, the rotating shaft 4 is placed on the side surface of a cylinder 411 (shown in figure 5), and the pipeline port of the standard device is embraced by four inclined surfaces of the two clamping jaws 5.
During initial installation, the centers of the rhombuses surrounded by the two inclined surfaces of the jaw 5 fixedly connected with the front left connecting rod 2L and the two inclined surfaces of the jaw 5 fixedly connected with the front right connecting rod 2R are on the same straight line with the centers of the rhombuses surrounded by the two inclined surfaces of the jaw 5 fixedly connected with the rear left connecting rod 3L and the two inclined surfaces of the jaw 5 fixedly connected with the rear right connecting rod 3R, the left convex strip 2L 1 is inserted into the left groove 3L 1, and the right convex strip 2R1 is inserted into the right groove 3R1, so that the front left connecting rod 2L and the front right connecting rod 2R can only move left and right relative to the rear left connecting rod 3L and the rear right connecting rod 3R, and the center position of the rhombuses surrounded by the inclined surfaces of the jaw 5 cannot be changed, and the centering of the detected flowmeter and the standard.
Claims (3)
1. A verification or calibration tested flowmeter installation centering device comprises a frame body (1) and a rotating shaft (4), and is characterized in that the frame body (1) is U-shaped, two side surfaces of the frame body (1) are respectively and symmetrically connected with a front left connecting rod (2) and a right connecting rod (2R) and a rear left connecting rod (3R) and a rear right connecting rod (3R), the upper ends of the front left connecting rod (2) and the rear right connecting rod (3R) are respectively and fixedly connected with a front left connecting screw rod (2) and a rear right connecting screw rod (2R) and a rear left connecting screw rod (3R) and a rear right connecting screw rod (3R), the lower ends of the front connecting rod and the rear connecting rod are fixedly connected with a jaw (5), the rotating shaft (4) is fixedly connected with a pair of stepped worm gears (41), the front left connecting screw rod (2) and the rear right connecting screw rod (2R) are meshed with one stepped worm gear (41), the rear left connecting screw rod (3) and the rear left connecting screw rod (3R) are meshed with the other stepped worm gears (41), a pair of central axis of the front left connecting rod (2) and right connecting rod (2R) is fixedly connected with a left convex strip (3R, a right convex strip (3R) and a right convex strip (3R) which is fixedly connected with a left convex strip (3R) and a left convex strip (3R 2, a right convex strip (3R) which is fixedly connected with a left convex strip (3R) and a right convex strip (3R) which is fixedly connected with a left convex strip (3R 2, a right convex strip (3R 2R 3R 2R 3R2, a right convex strip.
2. A verification or calibration test flow meter mounting and centering device according to claim 1, wherein: the stepped worm wheel (41) comprises a cylindrical rod (411) and a short worm wheel (412) which are coaxially connected, and the diameter of the cylindrical rod (411) is smaller than the diameter of the addendum circle of the short worm wheel (412).
3. A verification or calibration test flow meter mounting and centering device according to claim 1, wherein: the clamping jaw (5) is K-shaped, and the vertical part of the clamping jaw (5) is fixed with the lower ends of the front connecting rod and the rear connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164358.0A CN109916466B (en) | 2019-03-05 | 2019-03-05 | Verification or calibration to be detected flowmeter installation centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164358.0A CN109916466B (en) | 2019-03-05 | 2019-03-05 | Verification or calibration to be detected flowmeter installation centering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109916466A CN109916466A (en) | 2019-06-21 |
| CN109916466B true CN109916466B (en) | 2020-08-04 |
Family
ID=66963339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910164358.0A Active CN109916466B (en) | 2019-03-05 | 2019-03-05 | Verification or calibration to be detected flowmeter installation centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109916466B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111380587B (en) * | 2020-03-05 | 2022-09-23 | 广州能源检测研究院 | Method for compensating result error of measuring vertical tank capacity by adopting Monte Carlo method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101547773A (en) * | 2006-12-07 | 2009-09-30 | 松下电器产业株式会社 | Joint mechanism and joint device |
| CN102615467A (en) * | 2012-03-21 | 2012-08-01 | 北京工业大学 | Device for welding slim tubes with six degree of freedom constrained after being centered and butted |
| CN204725486U (en) * | 2015-06-03 | 2015-10-28 | 聊城鑫泰机床有限公司 | A kind of robot mechanical arm mechanism |
| CN205148345U (en) * | 2015-12-03 | 2016-04-13 | 山东科技大学 | Novel self -adaptation mechanical clamping hand claw |
| CN106584495A (en) * | 2017-01-03 | 2017-04-26 | 深圳市众为创造科技有限公司 | Mechanical gripper and robot |
| CN108481018A (en) * | 2018-03-28 | 2018-09-04 | 常州信息职业技术学院 | Automatic centering centre frame |
-
2019
- 2019-03-05 CN CN201910164358.0A patent/CN109916466B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101547773A (en) * | 2006-12-07 | 2009-09-30 | 松下电器产业株式会社 | Joint mechanism and joint device |
| CN102615467A (en) * | 2012-03-21 | 2012-08-01 | 北京工业大学 | Device for welding slim tubes with six degree of freedom constrained after being centered and butted |
| CN204725486U (en) * | 2015-06-03 | 2015-10-28 | 聊城鑫泰机床有限公司 | A kind of robot mechanical arm mechanism |
| CN205148345U (en) * | 2015-12-03 | 2016-04-13 | 山东科技大学 | Novel self -adaptation mechanical clamping hand claw |
| CN106584495A (en) * | 2017-01-03 | 2017-04-26 | 深圳市众为创造科技有限公司 | Mechanical gripper and robot |
| CN108481018A (en) * | 2018-03-28 | 2018-09-04 | 常州信息职业技术学院 | Automatic centering centre frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109916466A (en) | 2019-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203824481U (en) | Intermediate-diameter measuring instrument for odd-number fluted taps | |
| CN204043544U (en) | Depth measurement formula plug thread gauge | |
| CN109916466B (en) | Verification or calibration to be detected flowmeter installation centering device | |
| CN210442364U (en) | Soil detection apparatus | |
| CN109141202B (en) | Accurate slender axles axiality detects and correcting unit | |
| CN108332656B (en) | Elbow pipe detection device based on measuring light curtain | |
| DE3015058A1 (en) | DEVICE AND METHOD FOR DETERMINING AND MEASURING THE GROWTH OF A TURBINE BLADE | |
| CN109848329B (en) | Steel bar cold bending tester and testing method thereof | |
| CN107505071B (en) | Friction moment detection device for ball screw pair | |
| US4536964A (en) | Pipe thread gauge | |
| DE3534115C2 (en) | ||
| CN203848783U (en) | Apparatus for rapid detection of tooth thickness and tooth depth of driving bevel gear of automobile axle | |
| CN217786037U (en) | Herringbone gear equal-height detection device | |
| CN208860267U (en) | Concrete and reinforcing bar inspection | |
| DE3630902C2 (en) | ||
| CN209512734U (en) | Novel detection device | |
| CN109632163B (en) | Device for measuring tightness of spherical extrusion closing surface | |
| CN210512946U (en) | Cylinder cover vertical through hole width and intersection measuring tool | |
| CN207395602U (en) | A kind of mandrel dimension control equipment | |
| CN111912321A (en) | Inner hole coaxiality gauge | |
| CN221238292U (en) | Arc gear clearance detection equipment | |
| CN212539039U (en) | Special inspection tool for 45-degree screw hole of boss of agricultural machine sprocket | |
| CN211085072U (en) | Electronic gauge angle gauge | |
| CN211373451U (en) | Rotor shaft inspection tool for motor production | |
| CN221338459U (en) | Gear positioning structure and measuring instrument to be measured |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Guoyu Inventor after: Zhong Canming Inventor after: Chen Hansong Inventor after: Hu Houlin Inventor before: Chen Guoyu Inventor before: Zhong Canming Inventor before: Chen Hansong Inventor before: Hu Houlin |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |