CN109752448A - A kind of steering axle of automobile Inner Defect Testing device based on electromagnetic excitation - Google Patents
A kind of steering axle of automobile Inner Defect Testing device based on electromagnetic excitation Download PDFInfo
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- CN109752448A CN109752448A CN201910178055.4A CN201910178055A CN109752448A CN 109752448 A CN109752448 A CN 109752448A CN 201910178055 A CN201910178055 A CN 201910178055A CN 109752448 A CN109752448 A CN 109752448A
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- ultrasonic signal
- control unit
- centralized control
- excitation coil
- knuckle
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- 230000005284 excitation Effects 0.000 title claims abstract description 33
- 230000007547 defect Effects 0.000 title claims abstract description 15
- 238000012360 testing method Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims description 19
- 230000005672 electromagnetic field Effects 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
A kind of steering axle of automobile Inner Defect Testing device based on electromagnetic excitation, including knuckle, magnetostatic body device, centralized control unit, ultrasonic signal receivers, excitation coil, track rod assembly, frame cross；Knuckle, track rod assembly and frame cross form steeraxle.Magnetostatic body device and excitation coil are placed below steeraxle.Magnetostatic body device, excitation coil, ultrasonic signal receivers and centralized control unit electrical connection.Magnetostatic body device provides steady magnetic field for steeraxle；Centralized control unit makes excitation coil generate alternating electromagnetic field to excitation coil pulsing alternating current, and alternating electromagnetism field excitation steeraxle generates ultrasonic signal；Ultrasonic signal receivers are placed in position to be detected, receive ultrasonic signal, and ultrasonic signal is sent back centralized control unit and is analyzed and processed, judge whether measured position internal flaw occurs.
Description
Technical field
The present invention relates to automobile detection fields, more particularly, to a kind of steering axle of automobile internal flaw based on electromagnetic excitation
Detection device.
Background technique
The defects detection of steering axle of automobile is an important research content of support vehicles driving safety, at present about automobile
The detection method of steeraxle defect mainly has Magnetic testing, X-ray detection, EDDY CURRENT etc..Magnetic powder inspection is mainly to shape
At defect detected, can only probe vehicle steeraxle parts surface or the defect close to surface, to disappear after detection
The work of magnetic.X-ray detection crack defect is also easy to produce missing inspection if detection angles are uncomfortable, and testing cost is high, speed is slow,
There is certain radiation hazradial bundle.Eddy current detection method is preferable mainly for plane test specimen detection effect, but steering axle of automobile part
Majority is the irregular shapes such as curved surface, larger using EDDY CURRENT difficulty.Steering axle of automobile defects detection is ground with what is diagnosed at present
Study carefully and be still not perfect, especially the defect diagonsis of steering axle of automobile also rests on the subjective judgement stage substantially, does not use electromagnetic excitation
The detection technique and means of method are used for steering axle of automobile Inner Defect Testing.
Summary of the invention
The invention reside in the defects for overcoming existing motor turning bridge testing apparatus, provide a kind of safe and reliable and efficient
Steering axle of automobile Inner Defect Testing device.
To achieve the above object, the present invention includes knuckle, magnetostatic body device, centralized control unit, ultrasonic signal reception
Device, excitation coil, track rod assembly, frame cross；Knuckle is mounted on frame cross end, and it is fixed to be connected by stub
Position；Track rod assembly is mounted on the steering trapezoidal arm of knuckle；Knuckle, track rod assembly and frame cross group
At steeraxle；Magnetostatic body device and excitation coil are placed below steeraxle；Magnetostatic body device, excitation coil, ultrasonic signal connect
Receive device and centralized control unit electrical connection.
Magnetostatic body device provides steady magnetic field for knuckle, track rod assembly and the frame cross in steeraxle；In
Heart control unit makes excitation coil generate alternating electromagnetic field, alternating electromagnetism field excitation to excitation coil pulsing alternating current
Knuckle, track rod assembly and frame cross in steady magnetic field generate ultrasonic signal；Ultrasonic signal receivers with
The electrical connection of centralized control unit flexibility, vertical duction bridge axle line determine several detection sectional planes, and ultrasonic signal receivers are at each
Detection sectional plane receives ultrasonic signal, and ultrasonic signal is sent back centralized control unit and is analyzed and processed, and judges measured position
Whether internal flaw is occurred.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
In figure, the magnetostatic body device of 1- knuckle, 2-, 3- centralized control unit, 4- ultrasonic signal receivers, 5- excitation line
Circle, 6- track rod assembly, 7- frame cross.
Specific embodiment
Structure of the invention is as shown in Figure 1, include knuckle 1, magnetostatic body device 2, centralized control unit 3, ultrasonic signal
Receiver 4, excitation coil 5, track rod assembly 6, frame cross 7；Knuckle 1 is mounted on 7 end of frame cross, passes through master
Pin connection positioning；Track rod assembly 6 is mounted on the steering trapezoidal arm of knuckle 1；Knuckle 1, track rod assembly 6
Steeraxle is formed with frame cross 7；Magnetostatic body device 2 and excitation coil 5 are placed below steeraxle；Magnetostatic body device 2, excitation
Coil 5, ultrasonic signal receivers 4 and centralized control unit 3 are electrically connected.
When being detected, magnetostatic body device 2 provides steady magnetic field for steeraxle, and the structure type of magnetostatic body includes but unlimited
In generating magnetic field using two pieces of symmetrically placed permanent magnets, it is distributed magnetic flux density in a certain range between two magnets
Even, direction is consistent.Centralized control unit 3 makes excitation coil 5 generate alternating electromagnetism to 5 pulsing alternating current of excitation coil
, alternating electromagnetism field excitation is in steeraxle in steady magnetic field and generates ultrasonic signal；Centralized control unit 3 can be to excitation coil 5
Send random waveform pulse signal.When detection, centralized control unit generates pulse voltage, and pulsewidth and amplitude are adjustable, to reach
To required resolution ratio and output voltage.Ultrasonic signal receivers 4 are electrically connected with 3 flexibility of centralized control unit, vertical duction bridge
Axis determines several detection sectional planes, and ultrasonic signal receivers 4 receive ultrasonic signal, centralized control unit in each detection sectional plane
3 pairs of 4 return signals of signal receiver amplify filtering processing, eventually form testing result.
Claims (2)
1. a kind of steering axle of automobile Inner Defect Testing device based on electromagnetic excitation, which is characterized in that including knuckle (1),
Magnetostatic body device (2), centralized control unit (3), ultrasonic signal receivers (4), excitation coil (5), track rod assembly
(6), frame cross (7)；Knuckle (1) is mounted on frame cross (7) end, is connected and is positioned by stub；Track rod is total
It is mounted at (6) on the steering trapezoidal arm of knuckle (1)；Knuckle (1), track rod assembly (6) and frame cross (7) group
At steeraxle；Magnetostatic body device (2) and excitation coil (5) are placed below steeraxle；With magnetostatic body device (2), excitation coil
(5), ultrasonic signal receivers (4) and centralized control unit (3) electrical connection.
2. a kind of steering axle of automobile Inner Defect Testing device based on electromagnetic excitation as described in claim 1, feature exist
In magnetostatic body device (2) is that knuckle (1), track rod assembly (6) and the frame cross (7) in steeraxle provide steady
Magnetic field；Centralized control unit (3) makes excitation coil (5) to generate alternating electromagnetism to excitation coil (5) pulsing alternating current
, alternating electromagnetism field excitation knuckle (2), track rod assembly (6) and frame cross (7) generate alternating magnetic field, alternation magnetic
Field generates ultrasonic signal under the action of magnetostatic field；Ultrasonic signal receivers (4) are electrically connected with centralized control unit (3) flexibility,
Vertical duction bridge axle line determines several detection sectional planes, and ultrasonic signal receivers (4) receive ultrasonic signal in each detection sectional plane,
And ultrasonic signal is sent back into centralized control unit (3) and is analyzed and processed, judge whether measured position internal flaw occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910178055.4A CN109752448A (en) | 2019-03-11 | 2019-03-11 | A kind of steering axle of automobile Inner Defect Testing device based on electromagnetic excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910178055.4A CN109752448A (en) | 2019-03-11 | 2019-03-11 | A kind of steering axle of automobile Inner Defect Testing device based on electromagnetic excitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109752448A true CN109752448A (en) | 2019-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910178055.4A Pending CN109752448A (en) | 2019-03-11 | 2019-03-11 | A kind of steering axle of automobile Inner Defect Testing device based on electromagnetic excitation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109752448A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB969515A (en) * | 1961-04-05 | 1964-09-09 | Rolls Royce | Improvements in or relating to vibration-producing apparatus |
| US4312231A (en) * | 1979-07-06 | 1982-01-26 | Nippon Steel Corporation | Apparatus for generating and detecting an electromagnetic ultrasonic wave |
| CN203502387U (en) * | 2013-09-29 | 2014-03-26 | 常州南车汽车零部件有限公司 | Tool for detecting ultrasonic velocity of steering knuckle |
| CN105181791A (en) * | 2015-09-30 | 2015-12-23 | 西安交通大学 | Pulsed eddy current and electromagnetic ultrasonic composite based nondestructive body defect testing method |
| CN105445362A (en) * | 2015-11-13 | 2016-03-30 | 华中科技大学 | Method and device for detecting magnetostrictive guided wave based on open magnetic circuit |
| CN109444270A (en) * | 2018-11-20 | 2019-03-08 | 四川沐迪圣科技有限公司 | A kind of electromagnetic acoustic and impulse eddy current compound detection sensor |
-
2019
- 2019-03-11 CN CN201910178055.4A patent/CN109752448A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB969515A (en) * | 1961-04-05 | 1964-09-09 | Rolls Royce | Improvements in or relating to vibration-producing apparatus |
| US4312231A (en) * | 1979-07-06 | 1982-01-26 | Nippon Steel Corporation | Apparatus for generating and detecting an electromagnetic ultrasonic wave |
| CN203502387U (en) * | 2013-09-29 | 2014-03-26 | 常州南车汽车零部件有限公司 | Tool for detecting ultrasonic velocity of steering knuckle |
| CN105181791A (en) * | 2015-09-30 | 2015-12-23 | 西安交通大学 | Pulsed eddy current and electromagnetic ultrasonic composite based nondestructive body defect testing method |
| CN105445362A (en) * | 2015-11-13 | 2016-03-30 | 华中科技大学 | Method and device for detecting magnetostrictive guided wave based on open magnetic circuit |
| CN109444270A (en) * | 2018-11-20 | 2019-03-08 | 四川沐迪圣科技有限公司 | A kind of electromagnetic acoustic and impulse eddy current compound detection sensor |
Non-Patent Citations (1)
| Title |
|---|
| 杨理践 等: "电磁超声兰姆波的无损探伤技术" * |
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Application publication date: 20190514 |
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| WD01 | Invention patent application deemed withdrawn after publication |