A high-speed solenoid valve electromagnetic force static and dynamic test device
A high-speed solenoid valve, dynamic testing technology, applied in the field of dynamic testing equipment, high-speed solenoid valve electromagnetic force and static, to achieve the effect of high test efficiency, high test response speed and simple structure
Active Publication Date: 2018-11-02
CHINA NORTH ENGINE INST TIANJIN
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However, existing testing devices cannot meet the above requirements
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[0027] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0028] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0029] A high-speed solenoid valve electromagnetic force static and dynamic test device, such as figure 1 , 2 As shown, it includes an air gap adjustment measurement module 17, an electromagnetic force measurement module 16, a high-speed solenoid valve drive unit module 19, a drive current measurement module 15, a high-speed signal acquisition module 20, a communication module 21 and a host computer 23;
[0030] The air gap adjustment measurement module 17 includes the slide table base 3 and the electromagnet fixing device 8 for fixing the electromagnet to be tested on the slide table base 3, the armature fixing device 11 for fixing the tested armature, for A displacement measuring dev...
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The invention provides a high-speed solenoid valve electromagnetic force static and dynamic testing apparatus. The apparatus comprises an air gap adjusting measurement module, an electromagnetic force measurement module, a high-speed solenoid valve driving unit module, a driving current measurement module, a high-speed signal acquisition module, a communication module and a host computer. The air gap adjusting measurement module comprises a slide unit pedestal, and an electromagnet fixation apparatus, an armature fixation apparatus and a displacement measurement apparatus which are arranged on the slide unit pedestal. The electromagnetic force measurement module comprises a tension and compression sensor and a driving rod, and an electromagnetic force generated on a detected armature is perceived by the tension and compression sensor. According to the invention, static electromagnetic force features, dynamic electromagnetic force features, inductance and resistance of a high-speed solenoid valve with a response speed at a sub-millisecond grade can be measured under the conditions that driving currents are adjustable, an air gap is adjusted and the air gap is fixed, the shape of the driving currents can be arranged to be rectangular waves or second-order waveforms according to requirements, and measurement data can be displayed timely and automatically arranged for outputting a corresponding relation curve.
Description
technical field [0001] The invention belongs to the technical field of electromagnetic testing devices, and in particular relates to a static and dynamic testing device for electromagnetic force of a high-speed electromagnetic valve. Background technique [0002] The high-speed solenoid valve is the core component of the diesel engine's electronically controlled fuel system. It converts the driving current loaded on the high-speed electromagnet into electromagnetic force, and drives the valve core assembly to complete the opening and closing functions. In order to meet the needs of diesel engines, the response speed of high-speed solenoid valves to control commands must be at the sub-millisecond level. The key to the performance of high-speed solenoid valves is determined by the characteristics of electromagnetic force, so the test of electromagnetic force characteristics is very important. [0003] In order to meet the test needs, the test device must have the ability to te...
Claims
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IPC IPC(8): G01R33/12
Inventor 高青秀郭海洲吕帆王杰
Owner CHINA NORTH ENGINE INST TIANJIN