CN109142511A - A kind of crack detection device of train - Google Patents
A kind of crack detection device of train Download PDFInfo
- Publication number
- CN109142511A CN109142511A CN201810852016.3A CN201810852016A CN109142511A CN 109142511 A CN109142511 A CN 109142511A CN 201810852016 A CN201810852016 A CN 201810852016A CN 109142511 A CN109142511 A CN 109142511A
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- China
- Prior art keywords
- probe
- fixing barrel
- fixed
- motor
- baffle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
Abstract
The invention belongs to train crack detection technical fields, it is related to a kind of crack detection device of train, including fixing barrel, fixing barrel is equipped with rack gear, the gear being engaged with rack is equipped with below rack gear, gear is connected with first motor, is equipped with baffle in fixing barrel, fixing barrel is divided into first chamber and second chamber by baffle；The second motor is equipped in second chamber, the second motor is fixed on baffle, and the output shaft of the second motor is connected with rotating disc；It is equipped with rotation slot along the circumferencial direction of fixing barrel in fixing barrel, rotating disc is located in rotation slot and can rotate along rotation slot, and rotating cylinder is fixed on rotating disc, and the end of rotating cylinder offers fixing port after fixing barrel, is fixed with fixation kit in fixing port；Current vortex sensor is equipped in rotating cylinder, current vortex sensor includes probe, and probe is fixed in fixation kit；Rotating cylinder end is equipped with camera；The hollow shaft detection labor intensity of train of the present invention is small, detection efficiency is high and low to detection environmental requirement.
Description
Technical field
The present invention relates to a kind of crack detection devices of train, belong to crack detection technical field, more specifically, this hair
It is bright to be related to a kind of crack detection device of train.
Background technique
Train refer to because certain purpose and with hang over vehicle together.Most important traffic machine work in human history
Tool, early stage are known as steam locomotive, are also train.With the high speed development of China railways, the safety of railway operation increasingly by
The concern and attention of all circles；Hollow shaft is one of important component of train, and vital work is played in power transmission
With, but easily there is aging, defect and crackle in hollow shaft after the long-term high-speed cruising of train, it is therefore desirable to often hollow shaft is carried out
Defect and crack detection, to guarantee traffic safety.
Crack detecting method in the prior art mainly has visual detection, Magnetic testing, ultrasound examination etc..Visual detection
It needs tester that there is certain working experience, and can only find the defect problem on surface；Magnetic testing, which needs to remove, to be turned to
The paint on frame surface, dirt etc., the heavy workload for operator, and also it is inefficient；Ultrasound examination is needed steering
It is clean that frame detects surface smut removal, then adds couplant, and relatively high to detection environmental requirement.
In order to improve bogie crack detection efficiency and reduce to environmental requirement, propose using eddy current detection method,
Quick and precisely to detect whether train hollow shaft has crackle.
Summary of the invention
Based on the above technical problem, the present invention provides a kind of crack detection devices of train, to solve previous column
Low and high to the detection environmental requirement technical problem of the hollow shaft detection large labor intensity of vehicle, detection efficiency.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
A kind of crack detection device of train, including fixing barrel, fixing barrel bottom are equipped with along the length direction of fixing barrel
Rack gear, rack gear lower section are equipped with the gear being engaged with rack, and gear is connected with first motor,
Baffle is equipped in the fixing barrel, fixing barrel is divided into first chamber and second chamber by baffle；It is set in second chamber
There is the second motor, the second motor is fixed on baffle, and the output shaft of the second motor is connected with rotating disc；Along solid in the fixing barrel
The circumferencial direction for determining bucket is equipped with rotation slot, and the rotating disc is located in rotation slot and can rotate along rotation slot, solid on rotating disc
Surely there is rotating cylinder, the end of rotating cylinder offers fixing port after fixing barrel, is fixed with fixation kit in fixing port；Described turn
Current vortex sensor is equipped in dynamic bucket, current vortex sensor includes probe, and probe is fixed in fixation kit；The rotating cylinder end
Portion is equipped with camera.
On the basis of above technical scheme: the current vortex sensor further includes fore-lying device and jumper, and fore-lying device is solid
Due to rotating cylinder end, connected between fore-lying device and probe by jumper.
On the basis of above technical scheme: the fixation kit includes hollow cylinder, and hollow cylinder is fixed on fixing port simultaneously
It is connected to rotating cylinder, offers probe entrance at the top of hollow cylinder, hollow cylinder bottom is uniform along the radial direction of hollow cylinder
Be equipped with several shifting chutes, vertical baffle is equipped in shifting chute, probe entrance is pierced by the top of vertical baffle and is inclined outwardly；Institute
It states and is equipped with several springs between hollow cylinder inner wall and vertical baffle.
On the basis of above technical scheme: the probe is connected with signal amplifier, and signal amplifier is connected with peak value guarantor
Circuit is held, peak holding circuit is connected with A/D converter, and A/D converter is connected with single machine controller, and single machine controller is connected with
Alarm；Pass through between the probe, signal amplifier, peak holding circuit, A/D converter, single machine controller and alarm
Signal wire connection, the signal amplifier, peak holding circuit, A/D converter, single machine controller and alarm are set to first
In chamber.
On the basis of above technical scheme: the camera connects computer by WLAN.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are: the present invention can pass through current vortex
Method the crackle of train hollow shaft is detected, detection efficiency is high, and labor intensity needed for detecting is small and detection is to detection ring
The requirement in border is low.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of fixation kit；
Marked in the figure: 1- fixing barrel；2- rack gear；3- gear；4- first motor；5- baffle；6- first chamber；The second chamber of 7-
Room；The second motor of 8-；9- rotating disc；10- rotation slot；11- rotating cylinder；12- fixing port；13- probe；14- camera；Before 15-
Set device；16- jumper；17- hollow cylinder；18- probe entrance；19- shifting chute；20- vertical baffle；21- spring；22- letter
Number amplifier；23- peak holding circuit；24-A/D converter；25- single machine controller；26- alarm.
Specific embodiment
The present invention will be further described below with reference to the drawings.Embodiments of the present invention include but is not limited to following reality
Apply example.
Specific embodiment
Embodiment 1
As shown in Figs. 1-2, a kind of crack detection device of train, including fixing barrel 1,1 bottom of fixing barrel is along fixing barrel 1
Length direction is equipped with rack gear 2, is equipped with below rack gear 2 and is connected with first motor 4. with 2 meshed gears 3 of rack gear, gear 3
It is equipped with baffle 5 in the fixing barrel 1, baffle 5 divides fixing barrel 1 for first chamber 6 and second chamber 7；Second chamber
The second motor 8 is equipped in room 7, the second motor 8 is fixed on baffle 5, and the output shaft of the second motor 8 is connected with rotating disc 9；It is described
Be equipped with rotation slot 10 along the circumferencial direction of fixing barrel 1 in fixing barrel 1, the rotating disc 9 be located in rotation slot 10 and can along turn
Dynamic slot 10 rotates, and rotating cylinder 11 is fixed on rotating disc 9, and the end of rotating cylinder 11 offers fixing port 12 after fixing barrel 1,
Fixation kit is fixed in fixing port 12；Current vortex sensor is equipped in the rotating cylinder 11, current vortex sensor includes probe
13, probe 13 is fixed in fixation kit, and current vortex sensor further includes fore-lying device 15 and jumper 16, and fore-lying device 15 is fixed
In 11 end of rotating cylinder, connected between fore-lying device 15 and probe 13 by jumper 16；11 end of rotating cylinder is equipped with and takes the photograph
As head 14；
Probe 13 is directed at hollow shaft in use, when needing the hollow shaft to train to carry out crack detection by the present embodiment
Center, start first motor 4, first motor 4 is rotated with moving gear 3, and the rotation band carry-over bar 2 of gear 3 is mobile, and rack gear 2 is mobile
It drives fixing barrel 1 to move into Hollow Cylindrical Shaft, so that probe 13 be driven to move into Hollow Cylindrical Shaft, while starting the second motor 8,
Second motor 8 drives 13 rotation of probe by rotating disc 9 and rotating cylinder 11, to guarantee the comprehensive of 13 test surfaces of popping one's head in；Before
It sets 15 medium-high frequency oscillating current of device and 13 coils of probe is flowed by extension cable, generate alternation in the coil on 13 heads of popping one's head in
Magnetic field；Metallic object is tested close to this magnetic field, then generates induced current in this metal surface, the current vortex field also produces at the same time
The raw direction alternating magnetic field contrary with head coil makes the amplitude of head coil high-frequency current due to its reaction
Be changed (effective impedance of coil) with phase, this variation and metal bulk permeability, conductivity, the geometry of coil,
Geometric dimension, power frequency and head coil are to relating to parameters such as the distances on metallic conductor surface；The size of output signal with
Probe 13 changes to the spacing between measured body surface；It is split to whether there is by hollow shaft at current vortex sensor detection
Line；Therefore, the present embodiment can detect the crackle of train hollow shaft by the method for current vortex, and detection efficiency is high, detection
The requirement that required labor intensity is small and detection is to detection environment is low.
Embodiment 2
On the basis of embodiment 1, as shown in Fig. 2, the fixation kit includes hollow cylinder 17, hollow cylinder 17 is fixed
It is connected in fixing port 12 and with rotating cylinder 11, probe 18 heart cylinder of entrance, 17 bottom is offered at the top of hollow cylinder 17 along open circles
The radial direction of column 17 is uniformly equipped with several shifting chutes 19, and vertical baffle 20 is equipped in shifting chute 19, and vertical baffle 20 pushes up
Portion is pierced by probe 18 outer incline of entrance；Several springs 21 are equipped between 17 inner wall of hollow cylinder and vertical baffle 20；
For the present embodiment in use, 13 fixed position of popping one's head in is placed between vertical baffle 20, spring 21 gives vertical baffle
20 1 elastic force, thus 13 fixing-stables that will pop one's head in；It is pierced by 13 entrances of probe at the top of vertical baffle 20 and is inclined outwardly, Ke Yijia
The size of 13 entrances of big probe guarantees that probe 13 can enter from probe entrance 18, and it is vertical that probe 13 pushes after probe entrance 18
Baffle 20 is mobile to the direction far from the center of circle, squeezes spring 21；After the fixed position of probe 13 passes completely through 13 entrance of probe,
21 back stretch of spring gives probe 13 1 extruding forces, to guarantee 13 fixing-stables of popping one's head in；Therefore, the present embodiment can guarantee
The fixed stability of probe 13, facilitates the fixation and disassembly of probe 13.
Embodiment 3
On the basis of embodiment 1-2, as shown in Figs. 1-2, the probe 13 is connected with signal amplifier 22, signal amplification
Device 22 is connected with peak holding circuit 23, and peak holding circuit 23 is connected with A/D converter 24, and A/D converter 24 is connected with list
Machine controller 25, single machine controller 25 are connected with alarm 26；It is described probe 13, signal amplifier 22, peak holding circuit 23,
It is connected between A/D converter 24, single machine controller 25 and alarm 26 by signal wire, the signal amplifier 22, peak value are protected
Circuit 23, A/D converter 24, single machine controller 25 and alarm 26 is held to be set in first chamber 6；
The present embodiment is in use, fore-lying device 15 generates current vortex in hollow shaft inner surface by probe 13, and the vortex is simultaneously
A magnetic field opposite with former magnetic field is generated, and offsets part original magnetic field, the coil resistance detected and inductive component variation；If
Hollow shaft inner surface has crackle or existing defects, will change the intensity and distribution of vortex field, detects electric whirlpool by probe 13
The variation of the intensity in flow field, the signal that will test is after signal amplifier 22 and peak holding circuit 23, through A/D converter
The processing of single machine controller 25 is given in 24 acquisitions, by the signal that will test with do not have defect signal contrast after judge to detect
Signal is to issue sound-light alarm if any then alarm 26 for defective signal.
Embodiment 4
On the basis of embodiment 1-3, as shown in Figs. 1-2, the camera 14 connects computer by WLAN；
The present embodiment in use, the setting of camera 14 can be convenient observes the case where inner wall of hollow shaft surface,
The quality state of preliminary hollow shaft.
In the above-described embodiments, first motor, the second motor and fore-lying device pass through cable respectively and connect with power switch；Institute
Stating current vortex sensor is PR3300 type current vortex sensor.
It is as described above the embodiment of the present invention.Described previously is each preferred embodiment of the invention, each preferred
Preferred embodiment in embodiment if not obvious contradictory or premised on a certain preferred embodiment, it is each preferably
Embodiment can arbitrarily stack combinations use, and the design parameter in the embodiment and embodiment is merely to understand table
State the invention verification process of inventor, the scope of patent protection being not intended to limit the invention, scope of patent protection of the invention
Still it is subject to the claims, it is all to change with equivalent structure made by specification and accompanying drawing content of the invention, together
Reason should be included within the scope of the present invention.
Claims (5)
1. a kind of crack detection device of train, including fixing barrel (1), length direction of fixing barrel (1) bottom along fixing barrel (1)
It is equipped with rack gear (2), is equipped with below rack gear (2) and is connected with first motor (4) with rack gear (2) meshed gears (3), gear (3),
It is characterized by:
Baffle (5) are equipped in the fixing barrel (1), fixing barrel (1) is divided into first chamber (6) and second chamber by baffle (5)
(7)；The second motor (8) are equipped in second chamber (7), the second motor (8) is fixed on baffle (5), the output of the second motor (8)
Axis connection has rotating disc (9)；Rotation slot (10) are equipped with along the circumferencial direction of fixing barrel (1) in the fixing barrel (1), described turn
Moving plate (9) is located in rotation slot (10) and can rotate along rotation slot (10), is fixed on rotating disc (9) rotating cylinder (11), rotates
The end of bucket (11) offers fixing port (12) after fixing barrel (1), is fixed with fixation kit in fixing port (12)；Described turn
Current vortex sensor is equipped in dynamic bucket (11), current vortex sensor includes probe (13), and probe (13) is fixed in fixation kit；
Rotating cylinder (11) end is equipped with camera (14).
2. a kind of crack detection device of train according to claim 1, it is characterised in that: the current vortex sensor is also
Including fore-lying device (15) and jumper (16), fore-lying device (15) is fixed on rotating cylinder (11) end, fore-lying device (15) and probe
(13) it is connected between by jumper (16).
3. a kind of crack detection device of train according to claim 2, it is characterised in that: the fixation kit includes sky
Heart cylinder (17), hollow cylinder (17) are fixed on fixing port (12) and are connected to rotating cylinder (11), open at the top of hollow cylinder (17)
Equipped with probe entrance (18), hollow cylinder (17) bottom is uniformly equipped with several movements along the radial direction of hollow cylinder (17)
Slot (19), shifting chute (19) is interior to be equipped with vertical baffle (20), and probe entrance (13) is pierced by the top of vertical baffle (20) and is leaned outward
Tiltedly；Several springs (21) are equipped between hollow cylinder (17) inner wall and vertical baffle (20).
4. a kind of crack detection device of train according to claim 3, it is characterised in that: the probe (13) is connected with
Signal amplifier (22), signal amplifier (22) are connected with peak holding circuit (23), and peak holding circuit (23) is connected with A/D
Converter (24), A/D converter (24) are connected with single machine controller (25), and single machine controller (25) is connected with alarm (26)；
The probe (13), signal amplifier (22), peak holding circuit (23), A/D converter (24), single machine controller (25) and report
By signal wire connection between alert device (26), the signal amplifier (22), peak holding circuit (23), A/D converter (24),
Single machine controller (25) and alarm (26) are set in first chamber (6).
5. a kind of crack detection device of train according to claim 4, it is characterised in that: the camera (14) passes through
WLAN connects computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852016.3A CN109142511A (en) | 2018-07-27 | 2018-07-27 | A kind of crack detection device of train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852016.3A CN109142511A (en) | 2018-07-27 | 2018-07-27 | A kind of crack detection device of train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109142511A true CN109142511A (en) | 2019-01-04 |
Family
ID=64798393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810852016.3A Pending CN109142511A (en) | 2018-07-27 | 2018-07-27 | A kind of crack detection device of train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109142511A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076086A (en) * | 2014-06-27 | 2014-10-01 | 华东交通大学 | High-speed train bogie crack electromagnetic detecting device |
| CN104698073A (en) * | 2015-03-20 | 2015-06-10 | 北京交通大学 | Crack detecting device used for detecting cracks in high-speed train hollow shaft |
| US20150212113A1 (en) * | 2014-01-28 | 2015-07-30 | The Boeing Company | Eddy current probe rotator |
| CN105158331A (en) * | 2015-10-23 | 2015-12-16 | 爱德森（厦门）电子有限公司 | Device and method for in-service partial vortex scanning imaging of small-diameter pipe |
| CN206450664U (en) * | 2017-02-14 | 2017-08-29 | 六盘水师范学院 | A kind of moisture-proof construction of CO detection means |
-
2018
- 2018-07-27 CN CN201810852016.3A patent/CN109142511A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150212113A1 (en) * | 2014-01-28 | 2015-07-30 | The Boeing Company | Eddy current probe rotator |
| CN104076086A (en) * | 2014-06-27 | 2014-10-01 | 华东交通大学 | High-speed train bogie crack electromagnetic detecting device |
| CN104698073A (en) * | 2015-03-20 | 2015-06-10 | 北京交通大学 | Crack detecting device used for detecting cracks in high-speed train hollow shaft |
| CN105158331A (en) * | 2015-10-23 | 2015-12-16 | 爱德森（厦门）电子有限公司 | Device and method for in-service partial vortex scanning imaging of small-diameter pipe |
| CN206450664U (en) * | 2017-02-14 | 2017-08-29 | 六盘水师范学院 | A kind of moisture-proof construction of CO detection means |
Non-Patent Citations (2)
| Title |
|---|
| 宋艳丽 等: "《传感器与检测技术》", 31 August 2016, 合肥工业大学出版社 * |
| 沈功田 等: "《特种设备安全与节能技术进展一 2012年全国特种设备安全与节能学术会议论文集 下》", 30 April 2014, 中国质检出版社 * |
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Application publication date: 20190104 |