CN109061532B - Device and method for testing suction characteristic of electromagnetic valve driving mechanism - Google Patents
Device and method for testing suction characteristic of electromagnetic valve driving mechanism Download PDFInfo
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- CN109061532B CN109061532B CN201811011293.8A CN201811011293A CN109061532B CN 109061532 B CN109061532 B CN 109061532B CN 201811011293 A CN201811011293 A CN 201811011293A CN 109061532 B CN109061532 B CN 109061532B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1253—Measuring galvano-magnetic properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
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- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention belongs to the technical field of mechanical assembly, and particularly relates to a device and a method for testing suction characteristics of a solenoid valve driving mechanism. The device comprises an electromagnetic driving mechanism, a pneumatic stretching device, a storage recording unit, a mechanical sensor, a displacement sensor, a pneumatic switch, a loading support, a recoil disc, a limiting support, a limiting bolt, a pressure regulator and a stop valve; the method comprises the following steps: step 1, adjusting a pressure regulator, and adjusting the pressure of compressed air; step 2, adjusting a limit bolt to enable an armature of the electromagnetic driving mechanism to be positioned at the top; step 3, enabling the pneumatic stretching device to pull the armature of the electromagnetic driving mechanism; and 4, adjusting the limit bolt to enable the armature of the electromagnetic driving mechanism to be positioned at different positions, and measuring and calculating the tensile force of the armature at different positions to obtain the electromagnetic force of the armature at different positions. The invention can accurately test the electromagnetic force of the electromagnetic driving mechanism in the whole stroke and improve the reliability of opening the electromagnetic valve.
Description
Technical Field
The invention belongs to the technical field of mechanical assembly, and particularly relates to a device and a method for testing suction characteristics of a solenoid valve driving mechanism.
Background
The main steam valve stations in two units of the first-term engineering of the Tian Wan nuclear power station are pilot valves, the pilot valves are electromagnetic pilot valves and are driven by direct-acting electromagnets, and faults that cannot be opened occur many times in the use process of the pilot valves of the main steam valve stations are caused by unreasonable working point setting of the electromagnetic driving mechanism. Because the related technical data of electromagnetic force of different working points of the electromagnetic driving mechanism are not available, the working area of the electromagnetic driving mechanism cannot be reasonably set, so that the reliability of the electromagnetic pilot valve and the main valve thereof is reduced, and the safe operation of the unit is affected in severe cases.
Disclosure of Invention
The invention solves the technical problems that: aiming at the defects of the prior art, the invention provides the device and the method for testing the suction characteristic of the electromagnetic valve driving mechanism, which can accurately test the electromagnetic force of the electromagnetic driving mechanism in the whole stroke, provide a basis for setting the working point of the electromagnetic driving mechanism and improve the opening reliability of the electromagnetic valve.
The invention adopts the technical scheme that:
a suction characteristic testing device for an electromagnetic valve driving mechanism comprises an electromagnetic driving mechanism, a pneumatic stretching device, a storage recording unit, a mechanical sensor, a displacement sensor, a pneumatic switch, a loading support, a recoil disc, a limit support, a limit bolt, a pressure regulator and a stop valve; the top end of the electromagnetic driving mechanism is fixedly provided with a limiting bracket, and the recoil disc is positioned in the limiting bracket and is limited by a limiting bolt; the electromagnetic driving mechanism is fixedly provided with a loading support, the loading support is fixedly connected with the pneumatic stretching device, a central shaft at the top end of the pneumatic stretching device is connected with the central shaft of the electromagnetic driving mechanism, and a storage recording unit and a mechanical sensor are arranged on the connecting section; the bottom end of the central shaft of the pneumatic stretching device is provided with a displacement sensor which is connected with a storage recording unit; one side of the pneumatic stretching device is provided with a pneumatic switch, the pneumatic switch is connected with a compressed air pipeline, and the compressed air pipeline is sequentially provided with a pressure regulator and a stop valve.
A method for testing the suction characteristic of a solenoid valve driving mechanism comprises the following steps:
step 1, opening a stop valve of a compressed air pipeline;
step 2, adjusting a pressure regulator, and adjusting the pressure of compressed air;
step 3, adjusting a limit bolt to enable an armature of the electromagnetic driving mechanism to be positioned at the top;
step 4, electrifying the electromagnetic driving mechanism to attract the armature;
step 5, placing the pneumatic switch in a stretching position to enable the pneumatic stretching device to pull the armature of the electromagnetic driving mechanism;
step 6, reading a voltage value when the armature of the electromagnetic driving mechanism starts to move in the storage recorder, and calculating the pulling force, wherein the obtained force is the electromagnetic force when the armature is at the minimum breath;
step 7, setting the pneumatic switch at the middle position to enable the armature of the electromagnetic driving mechanism to return;
step 8, disconnecting the power supply of the electromagnetic driving mechanism;
step 9, adjusting the limit bolt to enable the armature of the electromagnetic driving mechanism to be positioned at different positions, and measuring and calculating the tensile force of the armature at different positions to obtain the electromagnetic force of the armature at different positions;
and step 10, performing curve fitting on electromagnetic force when the armature is positioned at different positions and the position of the armature, and obtaining a suction characteristic curve of the electromagnetic driving mechanism.
The invention has the beneficial effects that:
the device and the method for testing the suction characteristic of the electromagnetic valve driving mechanism provided by the invention can accurately and rapidly test the electromagnetic force of the electromagnetic valve driving mechanism, obtain the suction characteristic curve in the whole stroke, provide a basis for setting the working interval of the electromagnetic valve driving mechanism, and effectively improve the reliability of opening the electromagnetic valve.
Drawings
FIG. 1 is a schematic diagram of an electromagnetic force testing device for an electromagnetic valve driving mechanism according to the present invention;
in the figure: the device comprises a 1-electromagnetic driving mechanism, a 2-pneumatic stretching device, a 3-storage recording unit, a 4-mechanical sensor, a 5-displacement sensor, a 6-pneumatic switch, a 7-loading support, an 8-recoil disc, a 9-limit support, a 10-limit bolt, an 11-pressure regulator and a 12-stop valve.
Detailed Description
The invention provides a device and a method for testing the suction characteristic of a driving mechanism of an electromagnetic valve, which are further described in detail below with reference to the accompanying drawings and the specific embodiments.
As shown in fig. 1, the invention provides a device for testing the suction characteristics of an electromagnetic valve driving mechanism, which comprises an electromagnetic driving mechanism 1, a pneumatic stretching device 2, a storage recording unit 3, a mechanical sensor 4, a displacement sensor 5, a pneumatic switch 6, a loading support 7, a recoil disc 8, a limit bracket 9, a limit bolt 10, a pressure regulator 11 and a stop valve 12; the top end of the electromagnetic driving mechanism 1 is fixedly provided with a limiting bracket 9, and a recoil disc 8 is positioned in the limiting bracket 9 and is limited by a limiting bolt 10; the electromagnetic driving mechanism 1 is fixedly provided with a loading support 7, the loading support 7 is fixedly connected with the pneumatic stretching device 2, a central shaft at the top end of the pneumatic stretching device 2 is connected with the central shaft of the electromagnetic driving mechanism 1, and a storage recording unit 3 and a mechanical sensor 4 are arranged on a connecting section; the bottom end of the central shaft of the pneumatic stretching device 2 is provided with a displacement sensor 5, and the displacement sensor 5 is connected with the storage recording unit 3; one side of the pneumatic stretching device 2 is provided with a pneumatic switch 6, the pneumatic switch 6 is connected with a compressed air pipeline, and the compressed air pipeline is sequentially provided with a pressure regulator 11 and a stop valve 12.
The invention provides a method for testing the suction characteristic of a solenoid valve driving mechanism, which comprises the following steps:
step 1, opening a compressed air pipeline stop valve 12;
step 2, adjusting a pressure regulator 11 to regulate the pressure of compressed air;
step 3, adjusting a limit bolt 10 to enable an armature of the electromagnetic driving mechanism 1 to be positioned at the top;
step 4, energizing the electromagnetic driving mechanism 1 to attract the armature;
step 5, placing the pneumatic switch 6 at a stretching position to enable the pneumatic stretching device 2 to pull the armature of the electromagnetic driving mechanism 1;
step 6, reading the voltage value of the electromagnetic driving mechanism 1 when the armature starts to move in the storage recorder 3, and calculating the pulling force, wherein the obtained force is the electromagnetic force when the armature is at the minimum breath;
step 7, setting the pneumatic switch 6 at the middle position to enable the armature of the electromagnetic driving mechanism 1 to return;
step 8, disconnecting the power supply of the electromagnetic driving mechanism 1;
step 9, adjusting the limit bolt 10 to enable the armature of the electromagnetic driving mechanism to be at different positions, and measuring and calculating the tensile force of the armature at different positions to obtain the electromagnetic force of the armature at different positions;
and step 10, performing curve fitting on electromagnetic force when the armature is positioned at different positions and the position of the armature, and obtaining a suction characteristic curve of the electromagnetic driving mechanism.
Claims (1)
1. A suction characteristic testing method for an electromagnetic valve driving mechanism is based on a suction characteristic testing device for the electromagnetic valve driving mechanism, and comprises an electromagnetic driving mechanism (1), a pneumatic stretching device (2), a storage recording unit (3), a mechanical sensor (4), a displacement sensor (5), a pneumatic switch (6), a loading support (7), a recoil disc (8), a limiting support (9), a limiting bolt (10), a pressure regulator (11) and a stop valve (12); a limiting bracket (9) is fixedly arranged at the top end of the electromagnetic driving mechanism (1), and a recoil disc (8) is positioned in the limiting bracket (9) and is limited by a limiting bolt (10); the electromagnetic driving mechanism (1) is fixedly provided with a loading support (7), the loading support (7) is fixedly connected with the pneumatic stretching device (2), a central shaft at the top end of the pneumatic stretching device (2) is connected with the central shaft of the electromagnetic driving mechanism (1), and a storage recording unit (3) and a mechanical sensor (4) are arranged on a connecting section; the bottom end of the central shaft of the pneumatic stretching device (2) is provided with a displacement sensor (5), and the displacement sensor (5) is connected with the storage recording unit (3); one side of the pneumatic stretching device (2) is provided with a pneumatic switch (6), the pneumatic switch (6) is connected with a compressed air pipeline, and the compressed air pipeline is sequentially provided with a pressure regulator (11) and a stop valve (12);
the method is characterized in that: the method comprises the following steps:
step (1), opening a compressed air pipeline stop valve (12);
step (2), adjusting a pressure regulator (11) to regulate the pressure of compressed air;
step (3), adjusting a limit bolt (10) to enable an armature of the electromagnetic driving mechanism (1) to be positioned at the top;
step (4), electrifying the electromagnetic driving mechanism (1) to enable the armature to be attracted;
step (5), a pneumatic switch (6) is arranged at a stretching position, so that the pneumatic stretching device (2) pulls an armature of the electromagnetic driving mechanism (1);
step (6), reading a voltage value when the armature of the electromagnetic driving mechanism (1) starts to move in the storage recorder (3), and calculating the pulling force, wherein the obtained force is the electromagnetic force when the armature is at the minimum breath;
step (7), the pneumatic switch (6) is arranged at the middle position, so that the armature of the electromagnetic driving mechanism (1) returns;
step (8), disconnecting the power supply of the electromagnetic driving mechanism (1);
step (9), adjusting a limit bolt (10) to enable an armature of an electromagnetic driving mechanism to be in different positions, and measuring and calculating the tensile force of the armature in different positions to obtain electromagnetic force of the armature in different positions;
and (10) performing curve fitting on electromagnetic force when the armature is positioned at different positions and the position of the armature, and obtaining a suction characteristic curve of the electromagnetic driving mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811011293.8A CN109061532B (en) | 2018-08-31 | 2018-08-31 | Device and method for testing suction characteristic of electromagnetic valve driving mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811011293.8A CN109061532B (en) | 2018-08-31 | 2018-08-31 | Device and method for testing suction characteristic of electromagnetic valve driving mechanism |
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| CN109061532A CN109061532A (en) | 2018-12-21 |
| CN109061532B true CN109061532B (en) | 2023-09-08 |
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