CN201810442U - Magnetic force test device of pulsed solenoid valve - Google Patents
Magnetic force test device of pulsed solenoid valve Download PDFInfo
- Publication number
- CN201810442U CN201810442U CN2010205514278U CN201020551427U CN201810442U CN 201810442 U CN201810442 U CN 201810442U CN 2010205514278 U CN2010205514278 U CN 2010205514278U CN 201020551427 U CN201020551427 U CN 201020551427U CN 201810442 U CN201810442 U CN 201810442U
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- mounting plate
- armature
- pulling force
- force sensor
- fixed
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Abstract
The utility model discloses a magnetic force test device of a pulsed solenoid valve, which comprises a mounting plate, a positioning pin, an armature, a tension sensor, a rigid connecting plate and a digital conversion display, wherein the armature is fixed on the rigid connecting plate and is connected with the tension sensor, and the tension sensor is fixed on a base of the test device through the connecting plate; the mounting plate is connected with the base through a clamp body, and the positioning pin is fixed on the mounting plate; a pulsed solenoid valve to be tested is arranged on the mounting plate and is fixed on the positioning pin, and the distance between the plane of the mounting plate and the armature is 0.41 +/-0.0025mm; the tension sensor is connected with the digital conversion display, and the induced magnetic field generated by a valve body generates magnetic force on the armature and acts on the tension sensor after the pulsed solenoid valve to be tested is electrified; and the tension sensor converts the magnetic force into electric signals, and the electric signals are converted into digital signals and output to display by the digital conversion display. The magnetic force test device can quickly carry out the magnetic force test, is convenient to operate and reliable in stability, and is suitable for mass production of products.
Description
Technical field
The utility model relates to a kind of magnetism testing device of diesel engine electronic fuel injection solenoid valve.
Technical background
Chinese patent CN 201289411Y discloses a kind of solenoid valve electromagnet suction characteristic testing device on 08 12nd, 2009, comprises the electromagnet testing jig, is arranged on the mechanism for testing on the electromagnet testing jig; Described electromagnet testing jig rear end is provided with side bearing, be respectively equipped with header board and back plate in the front end and back end of mechanism for testing, the back plate lower end of described mechanism for testing is connected on the described side bearing by rotatable device, also be provided with handwheel and drive screw on the back plate of described mechanism for testing, also be provided with mobile plate in the middle of the described test structure, be provided with nut between described mobile plate and the back plate, drive drive screw by rotating handwheel, promote nut and mobile plate, in mechanism for testing, move axially.
Impulse electromagnetic valve is that the key in the diesel engine electric control fuel oil jet system is carried out components and parts.This solenoid valve is made up of parts such as silicon steel sheet, coil, connector assembly, plastic part and axle sleeves.To be solenoid valve connecting under 6.5 amperes the [constant state in its technical requirements, and valve body end face and contacted with it armature are under the 0.41mm gap, and magnetic attraction is 73.8 ± 3.6N accordingly.
The test method of magnetic strength suction has multiple, weigh etc. as static weighing, tensile test and counterweight, but all should its poor repeatability, defective, the batch process of incompatibility solenoid valve such as operating efficiency is low.
The model utility content
In order to overcome unstability and the low deficiency that waits of efficient in the solenoid valve magnetic attraction test, technical problem to be solved in the utility model provides a kind of impulse electromagnetic valve magnetic attraction testing apparatus, this device can carry out the magnetic attraction test fast, easy to operate and stable reliable, adapt to the batch process of product.
The utility model is to solve the problems of the technologies described above the technological scheme that is adopted to be: a kind of impulse electromagnetic valve magnetic attraction testing apparatus, its innovative point is: comprise mounting plate, locating stud, armature, pulling force sensor, plate and digital crossover display terminal are rigidly connected, armature is fixed on the plate that is rigidly connected, and is connected with pulling force sensor; Pulling force sensor is fixed on the base of testing apparatus by connecting plate; Mounting plate is connected with base by fixture; Locating stud is fixed on the mounting plate, and locating stud is fixed on the mounting plate, and impulse electromagnetic valve to be measured is placed on the mounting plate, and is fixed on the locating stud, and the plane of mounting plate and the spacing of armature residual gap are 0.41 ± 0.0025mm; Pulling force sensor is connected with digital crossover display terminal; The impulse electromagnetic valve energising induction field that rear valve body produced to be measured produces magnetic attraction to armature and acts on the pulling force sensor, and pulling force sensor converts magnetic attraction to electrical signal, is converted to digital signal and output demonstration through digital crossover display terminal.
With respect to prior art, the utility model is fixed on armature on the plate that is rigidly connected, and is connected with pulling force sensor; Pulling force sensor then is fixed on the base of testing apparatus by connecting plate.By mounting plate on the testing apparatus and locating stud, intermittence of valve body end face and armature residual gap accurately is controlled between 0.41 ± 0.0025mm.After the solenoid valve energising, the induction field that valve body produced produces magnetic attraction to armature and acts on the pulling force sensor.By the pulling force sensor electric detecting technology, convert magnetic attraction to electrical signal, and be converted to digital signal and output demonstration through digital crossover display terminal, therefore, the utility model can carry out the magnetic attraction test fast, and is easy to operate and stable reliable, adapts to the batch process of product.
Description of drawings
Fig. 1 is the structural representation of the utility model impulse electromagnetic valve magnetic attraction testing apparatus.
Wherein: 1 is impulse electromagnetic valve to be measured; 2 is locating stud; 3 is armature; 4 are the plate that is rigidly connected; 5 is mounting plate; 6 is fixture; 7 is pulling force sensor; 8 is base; 9 is digital crossover display terminal; 10 is connecting plate.
Embodiment
Below in conjunction with the drawings and specific embodiments, further set forth the present invention.These embodiments are interpreted as only being used to the present invention is described and are not used in restriction protection scope of the present invention.After the content of having read the present invention's record, those skilled in the art can make various changes or modifications the present invention, and these equivalences change and modify and fall into claim of the present invention institute restricted portion equally.
As shown in Figure 1, the impulse electromagnetic valve magnetic attraction testing apparatus that the utility model preferred embodiment provides comprises locating stud 2, armature 3, mounting plate 5, fixture 6, pulling force sensor 7, plate 4 and digital crossover display terminal 9 are rigidly connected.Armature 3 is fixed on the plate 4 that is rigidly connected, and is connected with pulling force sensor 7; Pulling force sensor 7 is fixed on the base 8 of testing apparatus by connecting plate 10; Mounting plate 5 is fixed on the base 8 by fixture 6; Locating stud 2 is located at directly over the armature 3, and impulse electromagnetic valve 1 to be measured lies on the mounting plate 5, and is fixed on the locating stud 2, and the spacing that the plane of mounting plate 5 and armature are 3 is 0.41 ± 0.0025mm; Pulling force sensor 7 is connected with digital crossover display terminal 9; The impulse electromagnetic valve to be measured 1 energising induction field that rear valve body produced produces magnetic attractions to armature 3 and acts on the pulling force sensor 7, and pulling force sensor 7 converts magnetic attraction to electrical signal, is converted to digital signal and output shows through digital crossover display terminal 9.
As shown in Figure 1, after impulse electromagnetic valve 1 energising to be measured (constant current power supply, direct current 6.5A), the induction field that valve body produced produces magnetic attraction to armature 3 and acts on the pulling force sensor 7.By pulling force sensor 7 electric detecting technologies, convert magnetic attraction to electrical signal, be converted to digital signal and output demonstration through digital crossover display terminal 9.
In the present embodiment, pulling force sensor 7 is a bridge-type ess-strain chip architecture, and after it obtains force signal that pulling force sensor 7 provides, foil gauge will produce the variation of resistance, the corresponding current signal that sends of bridge circuit converts digital signal at last to through the amplification processing and directly reads.
Claims (1)
1. an impulse electromagnetic valve magnetic attraction testing apparatus is characterized in that, it comprises mounting plate, locating stud, armature, pulling force sensor, be rigidly connected plate and digital crossover display terminal, and armature is fixed on the plate that is rigidly connected, and is connected with pulling force sensor; Pulling force sensor is fixed on the base of testing apparatus by connecting plate; Mounting plate is connected with base by fixture; Locating stud is fixed on the mounting plate, and impulse electromagnetic valve to be measured is placed on the mounting plate, and is fixed on the locating stud, and the plane of mounting plate and the spacing of armature residual gap are 0.41 ± 0.0025mm; Pulling force sensor is connected with digital crossover display terminal; The impulse electromagnetic valve energising induction field that rear valve body produced to be measured produces magnetic attraction to armature and acts on the pulling force sensor, and pulling force sensor converts magnetic attraction to electrical signal, is converted to digital signal and output demonstration through digital crossover display terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205514278U CN201810442U (en) | 2010-09-30 | 2010-09-30 | Magnetic force test device of pulsed solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205514278U CN201810442U (en) | 2010-09-30 | 2010-09-30 | Magnetic force test device of pulsed solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810442U true CN201810442U (en) | 2011-04-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205514278U Expired - Fee Related CN201810442U (en) | 2010-09-30 | 2010-09-30 | Magnetic force test device of pulsed solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810442U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519728A (en) * | 2011-12-28 | 2012-06-27 | 哈尔滨东安汽车动力股份有限公司 | Function test device and method of engine variable valve timing (VVT) system |
| CN102564652A (en) * | 2011-07-12 | 2012-07-11 | 常州易控汽车电子有限公司 | Mechanical test instrument for stress of electromagnetic valve and test method |
| CN104865520A (en) * | 2015-05-07 | 2015-08-26 | 苏州固基电子科技有限公司 | PLC-based electromagnetic valve attractive force characteristic test system |
-
2010
- 2010-09-30 CN CN2010205514278U patent/CN201810442U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564652A (en) * | 2011-07-12 | 2012-07-11 | 常州易控汽车电子有限公司 | Mechanical test instrument for stress of electromagnetic valve and test method |
| CN102564652B (en) * | 2011-07-12 | 2014-04-09 | 常州易控汽车电子有限公司 | Mechanical test instrument for stress of electromagnetic valve and test method |
| CN102519728A (en) * | 2011-12-28 | 2012-06-27 | 哈尔滨东安汽车动力股份有限公司 | Function test device and method of engine variable valve timing (VVT) system |
| CN104865520A (en) * | 2015-05-07 | 2015-08-26 | 苏州固基电子科技有限公司 | PLC-based electromagnetic valve attractive force characteristic test system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20140930 |
|
| EXPY | Termination of patent right or utility model |