CN111693929B - Constant magnetic field calibrating device for electric energy meter - Google Patents
Constant magnetic field calibrating device for electric energy meter Download PDFInfo
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- CN111693929B CN111693929B CN202010573026.0A CN202010573026A CN111693929B CN 111693929 B CN111693929 B CN 111693929B CN 202010573026 A CN202010573026 A CN 202010573026A CN 111693929 B CN111693929 B CN 111693929B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
The electric energy meter constant magnetic field calibrating device belongs to the technical field of measuring equipment testing, two groups of electric cylinder assemblies are arranged on a fixing frame of the calibrating device and are arranged on two sides of an electric energy meter placing seat in the vertical direction, movable magnetic steel assemblies are arranged on the two groups of electric cylinder assemblies and are used for providing a magnetic field environment, and an electric driver drives the two groups of electric cylinder assemblies to move so as to change the positions of the magnetic steel assemblies and further change the magnetic field on the surface of the electric energy meter; by implementing the invention, the magnetic field can be applied to all the accessible surfaces of the electric energy meter when the electric energy meter is subjected to performance detection under the constant magnetic field, so that the environmental requirements of the detection magnetic field of the relevant standard are met; the calibrating device provided by the invention can automatically calibrate the constant magnetic field of various types of electric energy meters, has high automation degree and greatly improves the calibrating efficiency.
Description
Technical Field
The invention belongs to the technical field of measuring equipment testing, and particularly relates to a constant magnetic field calibrating device for an electric energy meter.
Background
The external constant magnetic field has a great influence on the metering performance of the electric energy meter, and mainly influences a power supply module, a current transformer and a sampling unit inside the electric energy meter, so that the electric energy meter cannot be accurately metered, and therefore, an external constant magnetic field influence test on the electric energy meter is necessary before the electric energy meter is put into use. The existing test device generally has the problems of inconvenient operation and low verification accuracy, can not meet the environmental requirements of relevant standards on verification of the electric energy meter, has no automatic operation in the test process, can not avoid the damage to operators, and can not flexibly adjust the external magnetic field of the test.
Disclosure of Invention
Based on this, the invention aims to provide a constant magnetic field calibrating device for an electric energy meter, so as to overcome the defects of the prior art.
The invention relates to a constant magnetic field calibrating device for an electric energy meter, which comprises:
a fixed frame is arranged on the upper portion of the frame,
the first electric cylinder assembly, the second electric cylinder assembly, the electric energy meter placing seat, the three-phase power amplification power supply and the motor driver are arranged on the fixing frame;
the first electric cylinder assembly and the second electric cylinder assembly are fixed on two sides of the electric energy meter placing seat in the vertical direction;
the first magnetic steel component is movably arranged on the first electric cylinder component and used for providing magnetic fields on the upper surface and the side surface of the electric energy meter to be tested;
the second magnetic steel component is movably arranged on the first electric cylinder component and used for providing a magnetic field on the bottom surface of the electric energy meter to be detected;
the three-phase power amplifier power supply is connected with the electric energy meter to be tested and used for verifying the metering performance of the electric energy meter under an external constant magnetic field;
the motor driver is connected with the first electric cylinder assembly and the second electric cylinder assembly, and controls the positions of the first magnetic steel assembly and the second magnetic steel assembly through the external control end.
Preferably, the first electric cylinder assembly comprises a first slide rail, an X-axis sliding table, a Y-axis sliding table and a Z-axis sliding table,
first slide rail and Y axle slip table set up the support plane at the mount, are connected with the slider on the first slide rail, and the slider passes through the one end fixed connection of connecting piece and X axle slip table, the other end of X axle slip table and the slider fixed connection of Y axle slip table, and Z axle slip table and the slider fixed connection of X axle slip table.
Preferably, the second electric cylinder assembly comprises a second slide rail, an X-axis sliding table, a Y-axis sliding table and a Z-axis sliding table,
the second slide rail and the Y-axis sliding table are fixed on the fixing frame through support hollowing, a slide block is connected onto the second slide rail, the slide block is fixedly connected with one end of the X-axis sliding table through a connecting piece, the other end of the X-axis sliding table is fixedly connected with the slide block of the Y-axis sliding table, and the Z-axis sliding table is fixedly connected with the slide block of the X-axis sliding table.
Preferably, the first magnetic steel component comprises a fixing part, a cylinder support, a first rotating cylinder, a second rotating cylinder, a magnetic steel support and first magnetic steel,
one end of the fixing piece is fixedly connected with a sliding block of a Z-axis sliding table of the first electric cylinder assembly, the other end of the fixing piece is fixed with the air cylinder support, the first rotary air cylinder is arranged on the air cylinder support, and an output shaft of the first rotary air cylinder is arranged downwards; the magnetic steel support is fixed on the lower part of the cylinder support, the second rotary cylinder is fixed on one side of the magnetic steel support, and an output shaft of the second rotary cylinder is fixedly connected with first magnetic steel arranged in the magnetic steel support.
Preferably, an infrared sensor is further arranged on the first magnetic steel component.
Preferably, the second magnetic steel component comprises a fixed rod, a magnetic steel fixed seat and second magnetic steel,
the fixed rod is fixedly connected with a sliding block of a Z-axis sliding table of the second electric cylinder assembly, the magnetic steel fixing seat is arranged at the top of the fixed rod, and the second magnetic steel is arranged on the magnetic steel fixing seat.
Preferably, the support plane of the mount is also provided with a gauss meter.
Preferably, the bottom of the calibrating device is provided with universal wheels.
According to the technical scheme, the invention has the following beneficial effects:
according to the electric energy meter constant magnetic field calibrating device, the position of the magnetic steel is controlled by controlling the movement of the electric cylinder assembly, so that a magnetic field can be applied to all accessible surfaces of the electric energy meter when the electric energy meter is subjected to performance calibration under a constant magnetic field, and the environment requirements of a calibration magnetic field of relevant standards are met; the calibrating device provided by the invention can automatically calibrate the constant magnetic field of various types of electric energy meters, has high automation degree and greatly improves the calibrating efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic perspective view of a constant magnetic field calibration device for an electric energy meter according to the present invention;
FIG. 2 is a schematic diagram of the internal three-dimensional structure of the constant magnetic field calibration device for the electric energy meter according to the invention;
FIG. 3 is a first schematic diagram of the upper layer structure of the constant magnetic field calibrating apparatus for an electric energy meter according to the present invention;
FIG. 4 is a second schematic diagram of the upper structure of the constant magnetic field calibration apparatus for an electric energy meter according to the present invention;
FIG. 5 is a schematic perspective view of a rotary magnetic steel mechanism of the constant magnetic field calibration apparatus for an electric energy meter according to the present invention;
FIG. 6 is a schematic diagram of a back view perspective three-dimensional structure of a rotary magnetic steel mechanism of the electric energy meter constant magnetic field calibrating device of the present invention;
FIG. 7 is a schematic diagram of a middle layer structure of the constant magnetic field calibration apparatus for an electric energy meter according to the present invention;
FIG. 8 is a schematic perspective view of a lower electric cylinder assembly of the constant magnetic field calibration apparatus for an electric energy meter according to the present invention;
fig. 9 is a schematic view of the lower layer structure of the electric energy meter constant magnetic field calibrating device of the invention.
In the figure, 1, the shell of the calibrating device; 2. an upper layer; 201. a support plane; 202. an electric energy meter placing seat; 203. a first slide rail; 204. an upper electric cylinder fixing bottom plate; 205, an upper layer Y-axis slide; 206. an upper layer X-axis sliding table; 207. an upper Z-axis sliding table; 208. a first magnetic steel component; 209. a gauss meter; 2081. a magnetic steel fixing rod; 2082. rotating the cylinder support; 2083. a first rotary cylinder; 2084. a magnetic steel support; 2085. a second rotary cylinder; 2086. a magnetic steel shell; 2087. a first magnetic steel; 2088. an infrared sensor; 2089. a fixing plate; 3. a middle layer; 301. a second electric cylinder assembly; 302. a three-phase portable power amplifier source; 3011. a second slide rail; 3012. a lower Y-axis slide table; 3013. a lower X-axis sliding table; 3014. a lower Z-axis sliding table; 3015. fixing the rod; 3016. a magnetic steel fixing seat; 3017. a second magnetic steel; 4. a lower layer; 401. a motor driver; 402. an electrical backplane; 5. an electric energy meter.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 9, in the present embodiment, a calibration device for a constant magnetic field of an electric energy meter is provided, as shown in fig. 1 and 2, a housing 1 of the calibration device is a rectangular box with an opening at one side of an upper layer, and a fixing frame inside the calibration device is divided into an upper layer, a middle layer and a lower layer, which are an upper layer 2, a middle layer 3 and a lower layer 4; a first electric cylinder assembly, a first magnetic steel assembly 208 and an electric energy meter 5 are arranged in the upper layer 2; a second electric cylinder component 301 and a three-phase portable power amplifier source 302 are arranged in the middle layer 3; the lower layer 4 has a motor driver 401 and an electric backplane 402 mounted therein.
The upper layer 2 of the calibrating device of the embodiment is not totally closed, one side of the calibrating device is opened to facilitate taking and placing the electric energy meter 5, four corners of the bottom of the calibrating device are provided with universal wheels, and the side surface of the middle layer 3 is provided with an emergency stop button and a start button.
In this embodiment, the outer shell 1 and the internal fixing frame of the calibrating apparatus may be designed into a box shape, and the basic fixing frame structure may be designed by using common materials such as square steel or angle steel, which is only illustrated in fig. 1 in the embodiment of the present invention, and the mounting frame with other simple shape structures may be easily modified by those skilled in the art, and will not be described herein.
In this embodiment, the structure of the fixing frame is divided into three parts, namely, an upper part, a middle part and a lower part, the first electric cylinder assembly, the first magnetic steel assembly 208, the electric energy meter 5 and the like are all disposed on the upper layer, the second electric cylinder assembly 301 and the three-phase portable power amplifier source 302 are disposed on the middle layer, and the motor driver 401 and the electric bottom plate 402 are disposed on the lower layer.
As shown in fig. 3 and 4, a flat plate is fixed at the boundary between the upper layer 2 and the middle layer 3 of the embodiment as a supporting plane 201, a countersunk groove is formed on the supporting plane 201 as an electric energy meter placing seat 202, and the size of the countersunk groove can be just embedded with a three-phase electric energy meter; one side of the groove is provided with a banana panel socket for supplying power to the electric energy meter.
If the unidirectional electric energy meter with a small installation volume is installed, the unidirectional electric energy meter tray needs to be placed firstly, and the electric energy meter placing seat 202 can be adaptively designed according to the type of the electric energy meter which needs to be measured under the actual condition, so that the placing arrangement conditions of other types of electric energy meters are not listed further.
A first electric cylinder assembly is fixedly connected to the support plane 201 and comprises a first slide rail 203, an upper layer Y-axis sliding table 205, an upper layer X-axis sliding table 206 and an upper layer Z-axis sliding table 207; an upper-layer electric cylinder fixing bottom plate 204 is fixed on the supporting plane 201, and an upper-layer Y-axis sliding table 205 is fixed on the upper-layer electric cylinder fixing bottom plate 204; a sliding block is connected to the first sliding rail 203, the sliding block is fixedly connected with one end of the upper layer X-axis sliding table 206 through a connecting plate in the direction perpendicular to the supporting plane 201, and the sliding block of the upper layer Y-axis sliding table 205 is fixedly connected with the other end of the upper layer X-axis sliding table 206; upper Z axle slip table 207 is connected in the direction of upper Z axle slip table 206's sliding block vertical support plane 201, and upper Z axle slip table 207's sliding block is connected with first magnetic steel assembly 208, so, alright in order to arrange the magnet steel in electric energy meter top and optional position all around.
In this embodiment, a gaussmeter 209 is further fixedly connected to the supporting plane 201 for measuring magnetic induction.
As shown in fig. 5, the first magnetic steel assembly in this embodiment includes a fixing member 2081, a cylinder support 2082, a first rotating cylinder 2083, a magnetic steel support 2084, a second rotating cylinder 2085, a magnetic steel housing 2086, and a first magnetic steel 2087. Fixing member 2081 fixed connection upper Z axle slip table 207's sliding block, fixing rod 2081's bottom fixed connection cylinder support 2082, the first revolving cylinder 2083 of cylinder support 2082 fixed connection, the output shaft of first revolving cylinder 2083 sets up down, the motor shaft end passes through shaft coupling fixedly connected with magnet steel support 2084, magnet steel support 2084 is fixed in the lower part of cylinder support 2082, one side fixedly connected with output shaft of magnet steel support 2084 stretches into the inside second revolving cylinder 2085 of magnet steel support 2084, the output shaft fixed connection magnet steel shell 2086 of second revolving cylinder 2085, magnet steel shell 2086 adopts transparent inferior gram force material, be equipped with magnet steel 2087 in magnet steel shell 2086, so alright change magnet steel 2087's magnetic pole orientation.
First magnet steel subassembly still is provided with infrared sensor 2088 in this embodiment, and it is fixed in between cylinder support 2082 and magnet steel support 2084 through fixed plate 2089 to the rotation angle that can detect the magnet steel prevents that excessive rotation from causing the part to damage.
As shown in fig. 7, the second electric cylinder assembly 301 of the middle layer 3 in this embodiment includes a second slide rail 3011, a lower Y-axis sliding table 3012, a lower X-axis sliding table 3013, and a lower Z-axis sliding table 3014, which are fixedly connected to the calibration fixture; one end of a lower X-axis sliding table 3013 is fixedly connected to a sliding block of the lower Y-axis sliding table 3012, the other end of the lower X-axis sliding table 3013 is fixedly connected to a sliding block on a second sliding rail 3011, an upward lower Z-axis sliding table 3014 is fixedly connected to the sliding block of the lower X-axis sliding table 3013 in the vertical direction, and a second magnetic steel assembly is fixedly connected to the sliding block of the lower Z-axis sliding table 3014 and comprises a fixed rod 3015, a magnetic steel fixing seat 3016 and second magnetic steel 3017; the top of the fixed rod 3015 is fixedly connected with a magnetic steel fixing seat 3016, and a second magnetic steel 3017 is arranged in the magnetic steel fixing seat 3016, so that the position of the magnetic steel at the bottom of the electric energy meter can be changed to meet the magnetic field environment requirement of the relevant standard on the constant magnetic field detection of the electric energy meter.
As shown in fig. 9, the lower layer 4 in this embodiment is provided with a motor driver 401 and an electrical bottom plate 402, the motor driver 401 is connected to the electric cylinder assemblies of the upper layer 2 and the middle layer 3, and is communicated with an externally arranged control computer which controls the positions of the magnetic steels of the upper layer and the lower layer, and the electrical bottom plate 402 is used for supplying power to the electric energy meter 5 and other electrical components in the verification device.
In the embodiment, two groups of electric cylinder assemblies and two groups of magnetic steels are arranged on two sides of the electric energy meter placing seat 202 in the vertical direction, so that all accessible surfaces of the electric energy meter to be tested can be applied with magnetic field environments meeting requirements in relevant verification standards, and the verification accuracy is ensured; the position of the magnetic steel is changed by controlling the electric cylinder assembly to change the position and the direction of an external magnetic field, so that the influence of different magnetic fields on the metering performance of the electric energy meter to be tested can be tested.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides an electric energy meter constant magnetic field calibrating installation which characterized in that includes:
a fixed frame is arranged on the upper portion of the frame,
the first electric cylinder assembly, the second electric cylinder assembly, the electric energy meter placing seat, the three-phase power amplification power supply and the motor driver are arranged on the fixing frame;
the first electric cylinder assembly and the second electric cylinder assembly are fixed on two sides of the electric energy meter placing seat in the vertical direction;
the first magnetic steel component is movably arranged on the first electric cylinder component, and the second magnetic steel component is movably arranged on the second electric cylinder component;
the three-phase power amplifier power supply is connected with the electric energy meter to be tested and used for verifying the metering performance of the electric energy meter under an external constant magnetic field;
the motor driver is connected with the first electric cylinder assembly and the second electric cylinder assembly, and controls the positions of the first magnetic steel assembly and the second magnetic steel assembly through an external control end;
the first magnetic steel component comprises a fixing part, a cylinder support, a first rotary cylinder, a second rotary cylinder, a magnetic steel support and first magnetic steel,
one end of the fixing piece is fixedly connected with a sliding block of a Z-axis sliding table of the first electric cylinder assembly, the other end of the fixing piece is fixed with the air cylinder support, the first rotary air cylinder is arranged on the air cylinder support, and an output shaft of the first rotary air cylinder is arranged downwards; the magnetic steel support is fixed on the lower portion of the air cylinder support, the second rotary air cylinder is fixed on one side of the magnetic steel support, and an output shaft of the second rotary air cylinder is fixedly connected to first magnetic steel arranged in the magnetic steel support.
2. The electric energy meter constant magnetic field calibration device according to claim 1, wherein the first electric cylinder assembly comprises a first slide rail, an X-axis sliding table, a Y-axis sliding table and a Z-axis sliding table,
first slide rail and Y axle slip table set up the support plane of mount, the slider of first slide rail passes through the one end fixed connection of connecting piece and X axle slip table, the other end of X axle slip table and the slider fixed connection of Y axle slip table, and Z axle slip table and the slider fixed connection of X axle slip table.
3. The electric energy meter constant magnetic field calibration device according to claim 1, wherein the second electric cylinder assembly comprises a second slide rail, an X-axis sliding table, a Y-axis sliding table and a Z-axis sliding table,
the second slide rail and the Y-axis sliding table are fixed on the fixing frame through support hollowing, a slide block is connected onto the second slide rail, the slide block is fixedly connected with one end of the X-axis sliding table through a connecting piece, the other end of the X-axis sliding table is fixedly connected with the slide block of the Y-axis sliding table, and the Z-axis sliding table is fixedly connected with the slide block of the X-axis sliding table.
4. The electric energy meter constant magnetic field calibrating device according to claim 1, wherein an infrared sensor is further disposed on the first magnetic steel assembly.
5. The electric energy meter constant magnetic field calibration device according to claim 1, wherein the second magnetic steel component comprises a fixing rod, a magnetic steel fixing seat and a second magnetic steel,
the fixed rod is fixedly connected with a sliding block of a Z-axis sliding table of the second electric cylinder assembly, the magnetic steel fixing seat is arranged at the top of the fixed rod, and the second magnetic steel is arranged on the magnetic steel fixing seat.
6. The electric energy meter constant magnetic field verification device according to claim 1, wherein the support plane of the fixing frame is further provided with a gauss meter.
7. The electric energy meter constant magnetic field calibrating device according to claim 1, wherein universal wheels are arranged at the bottom of the calibrating device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010573026.0A CN111693929B (en) | 2020-06-22 | 2020-06-22 | Constant magnetic field calibrating device for electric energy meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010573026.0A CN111693929B (en) | 2020-06-22 | 2020-06-22 | Constant magnetic field calibrating device for electric energy meter |
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| CN111693929A CN111693929A (en) | 2020-09-22 |
| CN111693929B true CN111693929B (en) | 2022-01-11 |
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| CN102809302A (en) * | 2012-09-14 | 2012-12-05 | 岳阳鸿升电磁科技有限公司 | Bottom mounted electric permanent magnetic agitator for smelting furnace |
| CN208013404U (en) * | 2018-02-14 | 2018-10-26 | 国网江西省电力有限公司电力科学研究院 | A kind of electric energy meter stationary magnetic field influence experimental rig |
| CN109471054A (en) * | 2018-10-29 | 2019-03-15 | 哈尔滨电工仪表研究所有限公司 | Fully-automatic intelligent electric energy meter stationary magnetic field influences pilot system |
| CN110879378A (en) * | 2019-12-02 | 2020-03-13 | 国网冀北电力有限公司电力科学研究院 | Detection device based on constant magnetic field |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8482908B2 (en) * | 2011-10-14 | 2013-07-09 | Badger Meter, Inc. | Electronic meter register and method having a bottom formed by sealing material |
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2020
- 2020-06-22 CN CN202010573026.0A patent/CN111693929B/en active Active
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| CN102809302A (en) * | 2012-09-14 | 2012-12-05 | 岳阳鸿升电磁科技有限公司 | Bottom mounted electric permanent magnetic agitator for smelting furnace |
| CN208013404U (en) * | 2018-02-14 | 2018-10-26 | 国网江西省电力有限公司电力科学研究院 | A kind of electric energy meter stationary magnetic field influence experimental rig |
| CN109471054A (en) * | 2018-10-29 | 2019-03-15 | 哈尔滨电工仪表研究所有限公司 | Fully-automatic intelligent electric energy meter stationary magnetic field influences pilot system |
| CN110879378A (en) * | 2019-12-02 | 2020-03-13 | 国网冀北电力有限公司电力科学研究院 | Detection device based on constant magnetic field |
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