CN202710144U - Device for testing sensitivity of dry water meter movement - Google Patents
Device for testing sensitivity of dry water meter movement Download PDFInfo
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- CN202710144U CN202710144U CN 201220432683 CN201220432683U CN202710144U CN 202710144 U CN202710144 U CN 202710144U CN 201220432683 CN201220432683 CN 201220432683 CN 201220432683 U CN201220432683 U CN 201220432683U CN 202710144 U CN202710144 U CN 202710144U
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- movement
- water meter
- magnet ring
- hall element
- dry
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Abstract
The utility model discloses a device for testing the sensitivity of a dry water meter movement. The device comprises a first hollow coil, a second hollow coil, a test bench support, a first hall sensor, a second hall sensor, a circuit board, and a controller; the first hollow coil and the second hollow coil are arranged on the test bench support and connected with the controller; the first hall sensor and the second hall sensor are arranged on the circuit board; the circuit board is horizontally arranged on the test bench support; the first hall sensor and the second hall sensor are arranged on the circuit board; the circuit board is horizontally arranged on the test bench support and near the top surfaces of the first hollow coil and the second hollow coil, and the outputs of the first hall sensor and the second hall sensor are connected with the controller. The device can test the sensitivity before the dry water meter movement is arranged on a base meter of the water meter, and picks out unqualified movement, so that process quality control of a critical component of the dry water meter movement is achieved.
Description
Technical field
The utility model belongs to the testing apparatus technical field, is specifically related to a kind of equipment for the sensitivity of test dry-type water meter movement.
Background technology
Referring to Fig. 1, the water consumption measurement that 8 pairs of dry-type water meter movements flow through water meter is to be rotated by the water impeller 13 that flows, and then the magnet ring on the impeller of base table (being impeller magnet ring 12) measures by magnet ring (the being movement magnet ring 10) rotation that magnetic coupling drives on the dry-type water meter movement.Dry-type water meter movement can't be known the sensitivity behaviour of movement before being installed on the water meter, and movement sensitivity meeting directly affects water meter initiating and the error of indication, if be assembled into just measure the water meter initiating behind the table or the error of indication defective, needing to detect respectively when maintenance is that movement is defective or base table impeller box parts are defective, the production work amount is larger, does not also reach the procedure quality control of critical component simultaneously; Therefore, carrying out sensitivity test with the testing apparatus that can satisfy dry-type water meter movement sensitivity test requirement is very important.
Summary of the invention
The purpose of this utility model provides a kind of equipment for the sensitivity of test dry-type water meter movement, can carry out sensitivity test before being installed to essentic-water-meter at dry-type water meter movement, chooses underproof movement.
The metering transport characteristics of dry-type water meter movement is: the magnet ring on the movement (being the movement magnet ring) is two pairs of magnetic poles, magnet ring and the magnet ring on the movement on the base table carry out magnetic coupling transmission, detect dry-type water meter movement sensitivity, at first should drive the movement magnet ring and turn to certain speed by correct direction, then under inertia effect, begin the nature reduction of speed to setting speed, at this moment, begin to test the sensitivity that the amount of spin of movement magnet ring when stopping to represent movement; For accurately test dry-type water meter movement sensitivity, can not there be external force that dry-type water meter movement is disturbed at natural reduction of speed to testing the stage of finishing.
Equipment for the sensitivity of test dry-type water meter movement described in the utility model, comprise the first air core coil, the second air core coil, test board bearing, the first Hall element, the second Hall element, circuit board and controller, described first, second air core coil respectively vertical and symmetry is installed on the test board bearing, first, second air core coil is connected with controller by coil driver, for generation of magnetic field, drive the rotation of movement magnet ring by magnetic coupling; Described first, the second Hall element is installed on the circuit board, circuit board level is installed on the test board bearing, and near first, the end face of the second air core coil, first, the output of the second Hall element is connected with controller, and the position that is used for induction movement magnet ring (is the movement magnet ring N utmost point or S extremely relative first, the position of the second Hall element), judge the sense of rotation of movement magnet ring, (the N utmost point or the S utmost point that are the movement magnet ring pass through first to detect the rotational speed of movement magnet ring and the amount of spin of detection movement magnet ring dependence inertial rotation, the number of times of the second Hall element).The magnetic field that needs to produce enough magnetic field intensitys after the first or second air core coil (the being iron-less core coil) energising movement magnet ring that is coupled, make the movement magnet ring arrive certain speed, why first, second air core coil does not adopt iron core, because the magnetic field that cored coil produces, in movement magnet ring reduction of speed and test process, the remanent magnetism of iron core will to movement magnet ring generation effect, produce interference to the dry-type water meter movement sensitivity test.
Further, a computing machine is connected with described controller by serial ports, is used for directly showing and preserving the data of test.
The step that employing the said equipment carries out the dry-type water meter movement sensitivity test is as follows:
(1) dry-type water meter movement is placed on the test board bearing by the movement positioning support, the bottom surface of movement magnet ring is over against the end face of first, second air core coil, and near first, second Hall element, the positive and negative analysis of controller by the voltage of first, second Hall element output, judge in the movement magnet ring the extremely relatively position of first, second Hall element of the N utmost point or S, and the position by the N utmost point in the Computer display movement magnet ring or S extremely relative first or the second Hall element.
(2) controller is according to the energising order of first, second air core coil of location positioning of the N utmost point or S in the movement magnet ring extremely relative first or the second Hall element, and the energising order by first, second air core coil of Computer display, the first or second air core coil is switched on according to the energising order, produce magnetic field, make the sense of rotation rotation on demand of movement magnet ring by magnetic coupling, and pass through the sense of rotation of Computer display movement magnet ring; If the sense of rotation of movement magnet ring is incorrect, according to the positive and negative variation of voltage of first, second Hall element output, adjusts first, second air core coil energising order and make movement magnet ring direction rotation on demand.
(3) controller is by first, the second Hall element detects the rotational speed of movement magnet ring (according to first, the Time Calculation of the second Hall element voltage signal conversion), and quantitatively show the rotational speed of movement magnet ring by computing machine, when the movement magnet ring reaches certain speed, stop to first, the energising of the second air core coil, allow the movement magnet ring under inertia effect, begin reduction of speed, after dropping to setting speed, controller begins to record first, the N utmost point of the movement magnet ring that the second Hall element detects or S utmost point number of pass times, until the movement magnet ring stops operating, and quantitatively show the N utmost point or the S utmost point number of pass times of movement magnet ring by computing machine.
(4) controller is analyzed the N utmost point or the S utmost point number of pass times of movement magnet ring, number of times is more, and sensitivity is higher, with number of pass times and the contrast of standard number of times scope, if in standard number of times scope, then dry-type water meter movement sensitivity is suitable, and dry-type water meter movement is qualified, if not in standard number of times scope, then dry-type water meter movement sensitivity is improper, dry-type water meter movement is defective, and whether the Computer display dry-type water meter movement is qualified, and store test results; If greater than the upper limit of standard number of times scope, then dry-type water meter movement sensitivity is too high, if less than the lower limit of standard number of times scope, then dry-type water meter movement sensitivity is too low.
Before dry-type water meter movement is installed to essentic-water-meter, this equipment of employing carries out noiseless test to dry-type water meter movement sensitivity, by controlling first, the second air core coil produces the magnetic field that enough magnetic field intensitys the are arranged movement magnet ring that is coupled, make the movement magnet ring turn to certain speed, then under inertia effect natural reduction of speed to setting speed, by first, the second Hall element test movement magnet ring is from setting speed to the amount of spin that stops fully, chosen underproof movement, reduced the impact on next procedure, realized the procedure quality control of dry-type water meter movement critical component, improve the first-time qualification rate of dry-type meter, reduced the production cost of dry-type meter.
Description of drawings
Fig. 1 is the synoptic diagram of dry-type water meter movement metering transmission in the utility model.
Fig. 2 is the structural representation that testing apparatus is tested dry-type water meter movement in the utility model.
Fig. 3 is the measuring head of testing apparatus when testing and the position view of dry-type water meter movement.
Fig. 4 is the position view of first, second Hall element and first, second air core coil end face and magnet ring bottom surface in the utility model.
Fig. 5 is the position view of the first air core coil first, second Hall element of when energising and magnet ring bottom surface in the utility model.
Fig. 6 is the position view of the second air core coil first, second Hall element of when energising and magnet ring bottom surface in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Such as Fig. 2, Fig. 3, the equipment that is used for the sensitivity of test dry-type water meter movement shown in Figure 4, comprise the first air core coil 1, the second air core coil 2, test board bearing 3, the first Hall element 5, the second Hall element 6, circuit board 7, controller 4 and computing machine 11, first, the second air core coil respectively vertical and symmetry is installed on the test board bearing 3, first, the second air core coil is connected with controller 4 by coil driver, first, the second Hall element is installed on the circuit board 7, circuit board 7 levels are installed on the test board bearing 3, and near first, the end face of the second air core coil, the first Hall element 5 and the first air core coil 1 are in the same side, the second Hall element 6 and the second air core coil 2 are in the same side, first, the output of the second Hall element is connected with controller 4, and controller 4 is connected with computing machine 11 by the RS232 serial ports.First, second Hall element adopts continuous working type Hall element, and its model is: the HW-101A-F Hall element of Asahi Chemical Industry (Japan), this Hall element have power input and weak generating positive and negative voltage difference signal (hundreds of millivolt) output terminal; When different magnetic poles was close, the generating positive and negative voltage of the output voltage of Hall element was poor anti-phase, utilizes the voltage comparator that single-chip microcomputer carries in the controller 4 can gather first, second Hall element to the induced signal of magnetic pole.Be the field effect transistor IRF530 of N raceway groove, directly (4.5～5V) control the utmost point of deleting of field effect transistor, make first, second air core coil power on/off by the output of the single-chip microcomputer in the controller 4 high level.Controller 4 and coil driver are contained in the control enclosure, control enclosure is provided with " startup " button and two light emitting diodes that show test results that are connected with controller 4, a redness, a green is by the program setting in the controller 4, when test, two light emitting diodes alternately glimmer by 1 second frequency, after test is finished, according to test result, the long bright expression of red light is defective, and the long bright expression of green light is qualified.Simultaneously, computing machine 11 also can deposit database in by the software demonstration and with test result.
Such as Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, the step that employing the said equipment carries out the dry-type water meter movement sensitivity test is as follows:
(1) dry-type water meter movement 8 is placed on the test board bearing 3 by movement positioning support 9, the bottom surface of movement magnet ring 10 is over against first, the end face of the second air core coil, and near first, the second Hall element, first, the center of the position of the second Hall element and movement magnet ring 10 is acute angle, by " startup " button, begin test, controller 4 is by first, the positive and negative analysis of the voltage of the second Hall element output, judge the N utmost point or S extremely relative first in the movement magnet ring, the position of the second Hall element is by the position of the N utmost point or S extremely relative first or the second Hall element in the computing machine 11 demonstration movement magnet rings; Because its principle is: movement magnet ring 10 is made of two pairs of magnetic poles, its N, the S utmost point is alternately arranged, the bottom surface of movement magnet ring is opposite with the magnetic of end face (among Fig. 4, the magnetic pole of movement magnet ring bottom surface distributes and is N-S-N-S since the first air core coil corresponding position, the magnetic pole that its end face is corresponding is distributed as S-N-S-N), movement magnet ring 10 is enclosed within on the transmission shaft of dry-type water meter movement 8, the movement magnet ring can not be gone up, lower movement, can only rotate, when S extremely near first, during the second Hall element, first, the voltage of the second Hall element output is being for just, as N extremely close first, during the second Hall element, first, the voltage of the second Hall element output is for negative; Therefore, among Fig. 4, the S of movement magnet ring 10 is extremely near first, second Hall element, and the voltage of first, second Hall element output is for just, and computing machine 11 shows the positive voltage that first, second Hall elements are exported.
(2) controller 4 is according to the energising order of first, second air core coil of location positioning of the N utmost point or S in the movement magnet ring 10 extremely relative first or the second Hall element, and with the first or second air core coil according to energising order energising, produce magnetic field, make movement magnet ring 10 by counterclockwise rotation by magnetic coupling, show the energising order of first, second air core coil and the sense of rotation of movement magnet ring 10 by computing machine 11; Because its principle is: the electric current of the first air core coil 1 logical direction, produce magnetic field, its below, bottom surface is the S utmost point, top face is the N utmost point, repelling each other with the N utmost point of a pair of magnetic pole in movement magnet ring 10 bottom surfaces, (namely the first air core coil 1 energising magnetic coupling is rotated counterclockwise movement magnet ring 10, referring to Fig. 5), the electric current of the second air core coil 2 logical another directions, produce magnetic field, its below, bottom surface is the N utmost point, top face is the S utmost point, inhale mutually (namely the second air core coil 2 energising magnetic couplings turn clockwise movement magnet ring 10, referring to Fig. 6) with another N utmost point to magnetic pole of movement magnet ring 10 bottom surfaces; Therefore, in order to allow movement magnet ring 10 by counterclockwise rotation, need first to 1 energising of the first air core coil, movement magnet ring 10 is forwarded to behind the certain position again to 2 energisings (being similar to the motor commutation principle) of the second air core coil, then alternate energisation, it is continued by counterclockwise rotating to certain speed, and the switching of energising is realized by controller 4 control field effect transistor; When movement magnet ring 10 rotates by counter clockwise direction, the voltage of the second Hall element 6 outputs is first negative by just becoming, then the voltage of the first Hall element 5 outputs is just negative by just becoming, if the voltage of the first Hall element 5 outputs changes first, movement magnet ring 10 rotates in the direction of the clock so, need to change the energising order of first, second Hall element, make the sense of rotation of movement magnet ring correct.
(3) controller 4 detects the rotational speed of movement magnet ring by first, second Hall element, and by the computing machine 11 quantitative rotational speeies that show movement magnet ring 10, when the movement magnet ring reaches certain speed, stop to first, second air core coil energising, allow the movement magnet ring under inertia effect, begin reduction of speed, after dropping to setting speed, controller begins to record the N utmost point or the S utmost point number of pass times of the movement magnet ring that first, second Hall element detects, until the movement magnet ring stops operating, quantitatively show the N utmost point number of pass times of movement magnet ring 10 by computing machine 11; Its principle is: the mistiming of controller 4 record the first Hall elements 5 and the second Hall element 6 voltage sign changes, then by the rotational speed of its inner singlechip microcomputer core magnet ring, controller 4 records the first Hall element 5 is exported the number of times of positive voltages, determines the N utmost point number of pass times of movement magnet ring 10.
(4) controller 4 is analyzed the N utmost point or the S utmost point number of pass times of movement magnet ring 10, number of times is more, sensitivity is higher, with number of pass times and the contrast of standard number of times scope, if in standard number of times scope, then dry-type water meter movement sensitivity is suitable, dry-type water meter movement is qualified, green light Chang Liang on the control enclosure, if not in standard number of times scope, then dry-type water meter movement sensitivity is improper, dry-type water meter movement is defective, red light Chang Liang on the control enclosure, computing machine 11 shows whether dry-type water meter movement 8 is qualified, and deposits test result in database; Simultaneously, if number of pass times greater than the upper limit of standard number of times scope, then dry-type water meter movement sensitivity is too high, if less than the lower limit of standard number of times scope, then dry-type water meter movement sensitivity is too low.
Claims (2)
1. an equipment that is used for the sensitivity of test dry-type water meter movement is characterized in that: comprise the first air core coil (1), the second air core coil (2), test board bearing (3), the first Hall element (5), the second Hall element (6), circuit board (7) and controller (4); Described first, second air core coil respectively vertical and symmetry is installed on the test board bearing (3), and first, second air core coil is connected with controller (4) by coil driver; Described first, second Hall element is installed on the circuit board (7), and circuit board (7) level is installed on the test board bearing (3), and the end face of close first, second air core coil, and the output of first, second Hall element is connected with controller (4).
2. the equipment for test dry-type water meter movement sensitivity according to claim 1, it is characterized in that: a computing machine (11) is connected with described controller (4) by serial ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220432683 CN202710144U (en) | 2012-08-29 | 2012-08-29 | Device for testing sensitivity of dry water meter movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220432683 CN202710144U (en) | 2012-08-29 | 2012-08-29 | Device for testing sensitivity of dry water meter movement |
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| Publication Number | Publication Date |
|---|---|
| CN202710144U true CN202710144U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220432683 Expired - Lifetime CN202710144U (en) | 2012-08-29 | 2012-08-29 | Device for testing sensitivity of dry water meter movement |
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| CN (1) | CN202710144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829846A (en) * | 2012-08-29 | 2012-12-19 | 重庆市智能水表有限责任公司 | Equipment and method for testing sensitivity of movement of dry-type water meter |
-
2012
- 2012-08-29 CN CN 201220432683 patent/CN202710144U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829846A (en) * | 2012-08-29 | 2012-12-19 | 重庆市智能水表有限责任公司 | Equipment and method for testing sensitivity of movement of dry-type water meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 2 No. 400052 Chongqing Jiulongpo District of Hualong Avenue Patentee after: CHONGQING SMART WATER METER GROUP Co.,Ltd. Address before: 2 No. 400052 Chongqing Jiulongpo District of Hualong Avenue Patentee before: Chongqing Smart Water Meter Co.,Ltd. Address after: 2 No. 400052 Chongqing Jiulongpo District of Hualong Avenue Patentee after: CHONGQING INTELLIGENCE WATER CO.,LTD. Address before: 2 No. 400052 Chongqing Jiulongpo District of Hualong Avenue Patentee before: CHONGQING SMART WATER METER GROUP Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A device for testing the sensitivity of the movement of dry water meter Effective date of registration: 20201104 Granted publication date: 20130130 Pledgee: CHONGQING QIANWEI SCIENCE & TECHNOLOGY GROUP Co.,Ltd. Pledgor: CHONGQING INTELLIGENCE WATER Co.,Ltd. Registration number: Y2020500000015 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211029 Granted publication date: 20130130 Pledgee: CHONGQING QIANWEI SCIENCE & TECHNOLOGY GROUP Co.,Ltd. Pledgor: CHONGQING INTELLIGENCE WATER CO.,LTD. Registration number: Y2020500000015 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |