Claw pole magnetic property nondestructive testing device and method adjustable in test temperature
A technology for testing temperature and non-destructive testing, applied in the direction of magnetic performance measurement, measuring device, measuring magnetic variables, etc., can solve the problem of non-destructive testing of magnetic performance of claw poles, etc., and achieve the effect of optimal design
Active Publication Date: 2018-12-18
JIANGSU LONGCHENG PREC FORGING CO LTD +1
View PDF7 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Aiming at the defect that the existing technology cannot realize nondestructive testing of claw pole magnetic properties, the present invention proposes a nondestructive testing device and method for claw pole magnetic properties with adjustable test temperature. According
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018] Such as figure 1 As shown, it is a non-destructive testing device for claw pole magnetic properties with adjustable test temperature involved in this example, wherein: the magnetic conducting ring 4 is connected to the hole shaft of the positioning base 2, and the winding ferrule 9 is connected to the center boss of the positioning base 2 The hole shafts are connected, the positioning shaft 10 passes through the center hole of the positioning base 2 and is connected to the magnetic isolation backing plate 1, and the positioning base 2 is connected to the magnetic isolation backing plate 1 through screws.
[0019] Such as figure 2 As shown, the total height of the magnetic permeable ring 4 is 1.1 to 1.2 times the total height of the claw pole parts to be tested; its inner diameter D 0 The difference from the outer diameter of the claw pole part to be tested is 0.4-0.8mm; the outer diameter Where: S 爪极 is the cross-sectional area of the central boss of the claw pol...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM
Login to view more Abstract
The invention relates to a claw pole magnetic property nondestructive testing device and method adjustable in test temperature. The device comprises a pedestal arranged in an incubator in a magnetismisolating way, a winding ferrule and an excitation coil which are arranged on the pedestal from inside to outside as well as a to-be-tested claw pole part arranged at the top of the pedestal, whereina measuring coil is arranged in the to-be-tested claw pole part, a magnetic conductive ring forming a magnetic field loop with the to-be-tested claw pole part is arranged outside the measuring coil, the excitation coil is connected with a direct current magnetic property measuring instrument and receives an excitation voltage, the measuring coil outputs an induced current to the direct current magnetic property measuring instrument by generating the induced current, the direct current magnetic property measuring instrument records an output excitation current, the detected induced current is converted into an induced voltage and integration is performed on the induced voltage in the time domain to obtain magnetic induction intensity, the whole magnetizing curve of the to-be-tested claw pole part is obtained through measuring and calculating, and magnetic permeability of the claw pole part is represented. The device provided by the invention constructs operating magnetic field distribution highly similar to the actual generator by simulating temperature conditions in a generator operation process according to magnetic circuit characteristics of a claw pole type generator, thus rapidtesting is performed.
Description
technical field [0001] The present invention relates to a technology in the field of generator magnetic performance detection, in particular to a non-destructive detection device and method for claw pole magnetic performance with adjustable test temperature. Background technique [0002] Claw pole alternators are the most common type of alternator used in automobiles. A pair of claw poles cooperate with each other to form the magnetic poles of the rotor, which are magnetized and form a magnetic field under the action of the excitation coil, and the rotating cutting stator coil induces a voltage to realize power generation. Improving the magnetic properties of the claw pole parts can directly improve the power generation efficiency of the claw pole generator at the same speed. In practice, there are many different claw pole manufacturing processes and raw materials. How to measure and evaluate the overall magnetic properties of claw poles and guide the optimization of its ma...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Application Information
Patent Timeline
Login to view more IPC IPC(8): G01R33/12G01R33/04G01R33/10G01R33/06
CPCG01R33/04G01R33/06G01R33/10G01R33/1215G01R33/1223G01R33/1253
Inventor 汤晓峰胡成亮汤敏俊孙伟郑俊涛赵震
Owner JIANGSU LONGCHENG PREC FORGING CO LTD
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap