CN112556910A - Locomotive electro-pneumatic valve electromagnetic force measuring device - Google Patents
Locomotive electro-pneumatic valve electromagnetic force measuring device Download PDFInfo
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- CN112556910A CN112556910A CN202011466172.XA CN202011466172A CN112556910A CN 112556910 A CN112556910 A CN 112556910A CN 202011466172 A CN202011466172 A CN 202011466172A CN 112556910 A CN112556910 A CN 112556910A
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- pneumatic valve
- electro
- electromagnetic force
- measuring device
- locomotive
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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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
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention provides a locomotive electro-pneumatic valve electromagnetic force measuring device which comprises a chute fixing seat, wherein a chute is arranged on the left side of the chute fixing seat, the upper half part of the chute is connected with an electro-pneumatic valve support, an electro-pneumatic valve magnet yoke cylinder is installed on the electro-pneumatic valve support, a coil, a movable iron core and a static iron core are arranged in the magnet yoke cylinder, the movable iron core is connected with a core rod, and a wiring board is further fixed on the outer side of the magnet yoke cylinder; the lower half part of the sliding groove is provided with a sensor support, and a pulling pressure sensor is installed on the sensor support. The invention can be used under different working conditions, can not cause larger errors of measured data due to different working conditions during measurement, improves the measurement precision of the measured data under different working conditions, and simultaneously measures the relationship between the electromagnetic force of the locomotive electro-pneumatic valve and related parameters under different working conditions.
Description
Technical Field
The invention relates to the field of locomotive electro-pneumatic valves, in particular to an electromagnetic force measuring device for a locomotive electro-pneumatic valve.
Background
The locomotive electro-pneumatic valve is an electric device which can remotely control a pneumatic device by controlling the connection or disconnection of a compressed air pipeline of a locomotive through a direct current power supply to enable a coil to generate magnetic field force, and is widely applied to a locomotive braking system and pantograph-lifting control.
The locomotive electro-pneumatic valve is designed with the necessary structure, sealing, flow passage and the like of a common valve, the most important design is to check the suction force of an electromagnet, and the weight of the electromagnet part in the electro-pneumatic valve accounts for 30-40% of the weight of the whole valve under common conditions, some of the electromagnet parts are even higher, so that electromagnetic force calculation is carried out, the magnetic circuit structure is optimized, the valve is very important for improving the reliability of valve action and reducing the weight of products, actual measurement is the most powerful evidence for verifying theoretical calculation, and meanwhile, certain basis can be provided for diagnosing section operation faults.
The existing electro-pneumatic valve can only measure the electromagnetic force of the electro-pneumatic valve under a single working condition, the measurement under different working conditions has larger errors, and the measurement data is also not accurate.
Disclosure of Invention
The invention provides a locomotive electro-pneumatic valve electromagnetic force measuring device aiming at the problems in the prior art and aiming at measuring the electromagnetic force of an electro-pneumatic valve under different working conditions.
In order to achieve the purpose, the invention adopts the following technical scheme:
a locomotive electro-pneumatic valve electromagnetic force measuring device comprises a chute fixing seat; the left side of the sliding groove fixing seat is provided with a sliding groove, the upper half part of the sliding groove is connected with an electro-pneumatic valve support, an electro-pneumatic valve magnet yoke cylinder is mounted on the electro-pneumatic valve support, a coil, a movable iron core and a static iron core are arranged in the magnet yoke cylinder, the movable iron core is connected with a core bar, and a patch board is further fixed on the outer side of the magnet yoke cylinder; the lower half part of the sliding groove is provided with a sensor support, and a pulling pressure sensor is installed on the sensor support.
Furthermore, the sliding groove is connected with the fixed electro-pneumatic valve support and the sensor support in a dovetail groove mode, a waist-shaped hole is formed in the sliding groove and fixed with the electro-pneumatic valve support and the sensor support, and the height of the sliding groove can be adjusted flexibly.
Furthermore, the patch board is connected with an external adjustable direct current power supply, and the adjustable direct current power supply is used for setting the internal electrifying voltage of the electro-pneumatic valve.
Further, the sliding groove fixing seat is connected with the inside of the sliding groove through a screw.
Furthermore, the core rod can freely move up and down, and the pull pressure sensor is in contact with the core rod to acquire the magnitude of the downlink electromagnetic force of the core rod.
Furthermore, the pulling pressure sensor is connected with an external force value display, and the pressure peak value or the average value converted by the pulling pressure sensor is displayed through the force value display.
Furthermore, the pulling pressure sensor and the core rod are in coaxial contact when in contact, so that the descending electromagnetic force of the core rod is measured.
Furthermore, the adjusting range of the adjustable direct current power supply is 0V-220V.
The invention has the beneficial effects that: the measuring device can be used under different working conditions, and can not cause larger errors due to different working conditions during measurement, so that the measuring precision of the measured data under different working conditions is improved, and the relationship between the electromagnetic force of the locomotive electro-pneumatic valve and related parameters under different working conditions is measured simultaneously.
Drawings
FIG. 1 is a schematic view of the overall structure of an electromagnetic force measuring device of an electro-pneumatic valve of a locomotive;
fig. 2 is a top view of the electromagnetic force measuring device of the locomotive electro-pneumatic valve.
Wherein: the device comprises a movable iron core 1, a magnetic yoke barrel 2, a coil 3, a static iron core 4, a core bar 5, a wiring board 6, a chute fixing seat 7, a chute 8, an electro-pneumatic valve support 9, a sensor support 10, a tension pressure sensor 11, a force value display 12, an adjustable direct current power supply 13 and a test table 14.
Detailed Description
The present invention will be further described with reference to the following embodiments.
Example 1
A locomotive electro-pneumatic valve electromagnetic force measuring device comprises a chute fixing seat 7; the left side of the sliding groove fixing seat 7 is provided with a sliding groove 8, and the sliding groove fixing seat 7 is connected with the inside of the sliding groove 8 through a screw. The upper half part of the chute 8 is connected with an electro-pneumatic valve support 9, an electro-pneumatic valve magnetic yoke barrel 2 is mounted on the electro-pneumatic valve support 9, the coil 3, the movable iron core 1 and the static iron core 4 are arranged in the magnetic yoke barrel 2, the movable iron core 1 is connected with the core bar 5, and a patch board 6 is further fixed on the outer side of the magnetic yoke barrel 2; the patch board 6 is connected with an external adjustable direct current power supply 13, and the electrification voltage in the electro-pneumatic valve is set through the adjustable direct current power supply 13. The lower half part of the sliding chute 8 is provided with a sensor support 10, a pulling pressure sensor 11 is installed on the sensor support 10, the pulling pressure sensor 11 is connected with an external force value display 12, and the pressure peak value or the average value after the pulling pressure sensor 11 is converted is displayed through the force value display 12.
The chute 8 is connected with the fixed electro-pneumatic valve support 9 and the sensor support 10 in a dovetail groove mode, a waist-shaped hole is formed in the chute 8, the electro-pneumatic valve support 9 and the sensor support are fixed 10, the height can be adjusted flexibly, the core rod 5 can move up and down freely, the tension pressure sensor 11 is in contact with the core rod 5, and the size of the downlink electromagnetic force of the core rod is acquired.
The preparation testing principle of the locomotive electro-pneumatic valve electromagnetic force measuring device is as follows: the electromagnetic force is related to the number of turns of the coil and the current, and when the voltage is constant, the number of turns of the coil and the current can be reflected by the resistance. The resistance is affected by temperature. Factors influencing the magnitude of the measured value are therefore the influence of the supply voltage, the number of turns of the coil and the temperature. The electrified voltage can adopt a direct current power supply to input different voltages to the electro-pneumatic valve, the number of turns of the coil is the number of turns of the coil wound by the electro-pneumatic valve, and the temperature can be measured by adopting an infrared thermometer according to the length of the electrified time. Therefore, only the measuring device needs to be designed and manufactured to collect the electromagnetic force of the electro-pneumatic valve in the power-on state, and other variables can be manually controlled.
When the locomotive electro-pneumatic valve electromagnetic force measuring device is ready for testing, the sliding groove fixing seat is fixed on the experiment table, then the heights of the electro-pneumatic valve core rod 5 and the pull pressure sensor probe are observed and adjusted, and when the heights are adjusted to the optimal positions, the electro-pneumatic valve support (9) and the sensor support (10) are fixed through bolt fixing bolts. And a cable for connecting the tension pressure sensor (11) with the force value display (12) and a cable for connecting the electric pneumatic valve wiring board (6) with the adjustable direct current power supply (13). The internal voltage value of the electro-pneumatic valve is set through the adjustable direct current power supply 13, then the electric pneumatic valve is electrified, the coil 3 of the electro-pneumatic valve is electrified to generate electromagnetic force, the movable iron core 1 pushes the core rod to move, the force is transmitted to the tension and pressure sensor 11, and at the moment, a force value display connected with the tension and pressure sensor displays the peak value of the electromagnetic force at the moment. Meanwhile, the temperature of the magnetic yoke barrel is influenced by the length of the electrifying time, so that the size of the electromagnetic force can be recorded by changing the voltage value, the electrifying time and the number of turns of the coil under different working conditions, and the relationship between the parameters and the electromagnetic force can be analyzed.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention.
Claims (8)
1. A locomotive electro-pneumatic valve electromagnetic force measuring device comprises a chute fixing seat; the method is characterized in that: the left side of the sliding groove fixing seat is provided with a sliding groove, the upper half part of the sliding groove is connected with an electro-pneumatic valve support, a magnetic yoke cylinder is mounted on the electro-pneumatic valve support, a coil, a movable iron core and a static iron core are arranged in the magnetic yoke cylinder, the movable iron core is connected with a core rod, and a patch board is further fixed on the outer side of the magnetic yoke cylinder; the lower half part of the sliding groove is provided with a sensor support, and a pulling pressure sensor is installed on the sensor support.
2. The locomotive electro-pneumatic valve electromagnetic force measuring device of claim 1, characterized in that: the spout adopts the forked tail slot type to be connected with fixed electro-pneumatic valve support, sensor support, and spout inside is provided with waist type hole and is fixed with electro-pneumatic valve support, sensor support, height about can adjusting in a flexible way.
3. The locomotive electro-pneumatic valve electromagnetic force measuring device of claim 1, characterized in that: the patch board is connected with an external adjustable direct current power supply, and the adjustable direct current power supply is used for setting the internal electrifying voltage of the electro-pneumatic valve.
4. The locomotive electro-pneumatic valve electromagnetic force measuring device of claim 1, characterized in that: the sliding groove fixing seat is connected with the inside of the sliding groove through a screw.
5. The locomotive electro-pneumatic valve electromagnetic force measuring device of claim 1, characterized in that: the core rod can freely move up and down, and the pull pressure sensor is in contact with the core rod to acquire the magnitude of the downlink electromagnetic force of the core rod.
6. The locomotive electro-pneumatic valve electromagnetic force measuring device of claim 1, characterized in that: the pulling pressure sensor is connected with an external force value display, and the pressure peak value or the average value converted by the pulling pressure sensor is displayed through the force value display.
7. The locomotive electro-pneumatic valve electromagnetic force measuring device of claim 5, characterized in that: the pull pressure sensor and the core rod are in coaxial contact when in contact, so that the descending electromagnetic force of the core rod is measured.
8. The locomotive electro-pneumatic valve electromagnetic force measuring device of claim 3, characterized in that: the adjustable range of the adjustable direct current power supply is 0V-220V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011466172.XA CN112556910A (en) | 2020-12-14 | 2020-12-14 | Locomotive electro-pneumatic valve electromagnetic force measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011466172.XA CN112556910A (en) | 2020-12-14 | 2020-12-14 | Locomotive electro-pneumatic valve electromagnetic force measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN112556910A true CN112556910A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011466172.XA Pending CN112556910A (en) | 2020-12-14 | 2020-12-14 | Locomotive electro-pneumatic valve electromagnetic force measuring device |
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| CN (1) | CN112556910A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116577708A (en) * | 2023-04-11 | 2023-08-11 | 江苏宏达电气有限公司 | Permanent magnet force measuring tooling |
-
2020
- 2020-12-14 CN CN202011466172.XA patent/CN112556910A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116577708A (en) * | 2023-04-11 | 2023-08-11 | 江苏宏达电气有限公司 | Permanent magnet force measuring tooling |
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Application publication date: 20210326 |
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| WD01 | Invention patent application deemed withdrawn after publication |