CN105445379B - Large-scale double track inspection car centering body - Google Patents
Large-scale double track inspection car centering body Download PDFInfo
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- CN105445379B CN105445379B CN201511024257.1A CN201511024257A CN105445379B CN 105445379 B CN105445379 B CN 105445379B CN 201511024257 A CN201511024257 A CN 201511024257A CN 105445379 B CN105445379 B CN 105445379B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/225—Supports, positioning or alignment in moving situation
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Abstract
The invention discloses a kind of large-scale double track inspection car centering bodies, including upper frame, walk driving frame and servo centering body；Wherein, the upper frame with it is described walk driving frame connected by double leval jib mode, each contact point of double leval jib connection uses articulated connection mode.The upper frame and it is described walk driving frame between be provided with multiple cylinders or hydraulic cylinder, the cylinder and hydraulic cylinder be used for it is described walk driving frame pressurize.The large-scale double track inspection car centering body of the present invention ensure that the ultrasonic wave of the servo flaw detection mechanism of large-scale double track inspection car visits wheel and the coupling of rail surface centering is good, inconvenience when reducing up-down vibration and the serpentine locomotion of servo flaw detection mechanism, while also optimizing bend in design；Meanwhile also have many advantages, such as it is compact to design, be easily installed, be easy to operate.
Description
Technical field
The present invention relates to a kind of centering body of rail examination equipment, more particularly to a kind of large size of combination ultrasonic scanning
Double track inspection car centering body.
Background technology
Main artery of the railway as national economy is one of most important infrastructure of country and is related to us often
The most popular mode of transportation of a citizen.
In railway traffic, the function of rail is wheel of vehicle is guided to advance, and bears the immense pressure from wheel.Train
When accelerating in braking process and by rail joint, bend and track switch, rail is caused to rub, squeeze, be bent and rush
The effect of hitting, in-service rail bear rolling repeatedly for wheel for a long time, and inevitably there are fatigue defects and defect.Therefore it is
Ensure the safe operation of locomotive, need often to carry out in-service rail carrying out flaw detection, be found in time there are hurt in rail,
To adopt remedial measures, it is preventive from possible trouble.
Currently, the rail examination work in China is still in based on hand propelled flaw detection trolley, the office supplemented by large-scale inspection car
Face.Hand propelled flaw detection trolley operating efficiency is low, and generally 2~3km, inspection speed are low per hour for detection speed.With train
Speed improves and the increase of axis weight, in addition environment reason leads to expanding with heat and contract with cold for metal, rail failure speed is also accordingly accelerated, made
Obtaining detection cycle also has the tendency that shortening.
As the various Lines for Passenger Transportation in China and Shanghai and Nanjing, Shanghai-Hangzhou high speed inter-city passenger rail open operation, Line for Passenger Transportation and high-speed iron
Route road, which is supported, repaiies system issuing and implementation, and traditional hand propelled flaw detection trolley cannot fit in the pattern that train gap upper rail is detected
It should support and repair institutional change needs.Railway department proposes to use " skylight " operating type thus, i.e., it is small to provide 1-3 to certain interval circuit
When activity duration, during this period without train operation.In this case, the detection efficiency of traditional hand propelled flaw detection trolley is low
The drawbacks of just seem especially prominent.Therefore the demand of the large-scale inspection car fast to detection speed is continuously increased.
When large-scale inspection car high-speed cruising, servo flaw detection mechanism can generate serpentine locomotion and up-down vibration, to detection
Accuracy has an impact, it is therefore desirable to be improved so that ultrasonic testing system can precise alignment, ensure that detection data is accurate
Really.Chinese patent application 201410608424.6 discloses " center support system and method for a kind of steel rail flaw detection device ", the system
Completely using servo centering, cause its cost very high.
Invention content
The present invention provides a kind of large-scale double track inspection car centering body, solves the medium-and-large-sized flaw detection of the prior art at lower cost
Vehicle can generate the technical issues of serpentine locomotion and up-down vibration in high-speed cruising.
Technical scheme is as follows：
A kind of large size double track inspection car centering body, including upper frame, walks driving frame and servo centering body；Wherein,
The upper frame with it is described walk driving frame connected by double leval jib mode, each contact point of double leval jib connection uses
Articulated connection mode.
In a specific embodiment, the articulated connection mode of each contact point of the double leval jib is connected for flexural pivot.
In a preferred embodiment, the upper frame and it is described walk driving frame between be provided with multiple cylinders or hydraulic pressure
Cylinder, the cylinder and hydraulic cylinder be used for it is described walk driving frame pressurize.
In a preferred embodiment, it is described walk driving frame include four directive wheels, the cylinder or hydraulic cylinder
It acts on the wheel shaft of the directive wheel.
In a preferred embodiment, the wheel shaft of the cylinder or hydraulic cylinder and the directive wheel is hinged.
In a preferred embodiment, the servo centering body includes Level tune clamp mechanism, Level tune
Mechanism visits wheel to the ultrasonic wave of servo centering body by a lateral adjustments motor and electric pushrod and carries out Level tune.
In a preferred embodiment, the servo centering body includes up and down adjustment clamp mechanism, up and down adjustment
Mechanism visits wheel to the ultrasonic wave of servo centering body by a up and down adjustment motor and electric pushrod and carries out up and down adjustment.
In a preferred embodiment, the servo centering body includes angular adjustment clamp mechanism, wherein, the angle tune
Knot mechanism by one can at a high speed frequently rotating linear motor and electric pushrod and with unification arc track realize servo pair
The ultrasonic wave of middle mechanism visits the angular adjustment of wheel.
In a preferred embodiment, it is described walk driving frame include front jockey wheel crossbeam and rear directive wheel crossbeam,
Preceding nave boss and rear nave boss are hinged by the front jockey wheel crossbeam and rear directive wheel crossbeam, the front jockey wheel crossbeam and rear directive wheel
The overall length of crossbeam is more than the length of gap in the frog.
The present invention also provides a kind of large-scale double track inspection cars, are provided with any of the above-described large-scale double track inspection car transducer
Structure.
In a preferred embodiment of the invention, the large-scale double track inspection car further includes servo flaw detection mechanism, described to watch
Clothes flaw detection mechanism mainly includes ultrasonic wave and visits four wheel, analog circuit, signal processing and display circuit and control circuit parts,
Described in signal processing and display circuit be based on DSP Technology designs and manufacture, including high-speed a/d acquisition module, a dsp chip,
Data disaply moudle and dual port RAM.
In a preferred embodiment of the invention, the control circuit includes ROM, a dsp chip, USB/RS232 interfaces
And peripheral hardware；Wherein, a master-slave system being formed using high speed MCU chip and dsp chip, dsp chip completes complicated algorithm,
MCU chip completes the work of control acquisition external data, output control signal and finishing man-machine interaction, and is made using dual port RAM
Communication medium between dsp chip and MCU chip.
Compared with prior art, beneficial effects of the present invention are as follows：
The large-scale double track inspection car centering body of the present invention ensure that the super of the servo flaw detection mechanism of large-scale double track inspection car
Sound wave visits wheel and the coupling of rail surface centering is good, reduces up-down vibration and the serpentine locomotion of servo flaw detection mechanism, simultaneously
Also inconvenience during bend was optimized in design；Meanwhile also have many advantages, such as it is compact to design, be easily installed, be easy to operate.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the large-scale double track inspection car centering body of the embodiment of the present invention；
Fig. 2 is the structure chart of the connecting vehicle frame of the large-scale double track inspection car centering body of the embodiment of the present invention；
Fig. 3 is the traveling body frame structure for automotive figure of the large-scale double track inspection car centering body of the embodiment of the present invention；
Fig. 4 (a)-(d) is that the flaw detection mechanism of the large-scale double track inspection car centering body of the embodiment of the present invention avoids snakelike fortune
Dynamic structure diagram；Wherein, Fig. 4 (a) is inspection car straight line moving state vertical view, and Fig. 4 (b) is inspection car straight line moving shape
State front view, Fig. 4 (c) are inspection car serpentine locomotion state vertical view, and Fig. 4 (d) is inspection car serpentine locomotion state front view；
Fig. 5 is that the flaw detection mechanism of the large-scale double track inspection car centering body of the embodiment of the present invention avoids the structure of up-down vibration
Schematic diagram；
Fig. 6 is the servo centering body structure chart of the large-scale double track inspection car centering body of the embodiment of the present invention；
Fig. 7 is that the servo centering body of the large-scale double track inspection car centering body of the embodiment of the present invention takes turns horizontal adjustment to visiting
Schematic diagram；
Fig. 8 is the servo centering body of the large-scale double track inspection car centering body of the embodiment of the present invention to visiting wheel angle adjustment
Schematic diagram one；
Fig. 9 is the servo centering body of the large-scale double track inspection car centering body of the embodiment of the present invention to visiting wheel angle adjustment
Schematic diagram two；
Figure 10 is that the servo centering body of the large-scale double track inspection car centering body of the embodiment of the present invention is lowered to visiting on wheel
Whole schematic diagram；
Figure 11 is that the probe setting of the servo centering body of the large-scale double track inspection car centering body of the embodiment of the present invention is shown
It is intended to.
Specific embodiment
The invention discloses a kind of large-scale double track inspection car centering bodies.
With science and technology constantly development and progress, we increasingly pay attention to safety.Main purpose of the present invention is used to ensure
The ultrasonic wave of the servo flaw detection mechanism of the automatic flaw detection of large-scale double track inspection car visits wheel and the coupling of rail surface centering is good.
The present invention will be further described for lower section, so that those skilled in the art can be better understood from the present invention, but
Protection scope of the present invention is not limited only to following specific embodiments.
Embodiment
Present embodiment discloses a kind of large-scale double track inspection cars, are provided with large-scale double track inspection car centering body, this is right
Middle mechanism includes upper frame, walks driving frame and servo centering body.Specific shown in Figure 1 in the present embodiment, centering
The top of mechanism is divided into connecting vehicle frame, middle part is divided into walking driving frame, lower part is divided into servo centering body.Specifically, servo centering
Mechanism includes two groups.
The centering body of the present invention is assembled using three parts, compact-sized, be easily installed.
The large size double track inspection car has the function of from traveling, specifically, can by above-mentioned centering body to walk driving frame electrical
Automation, can be adjusted control according to the movement of the large size double track inspection car.
It is shown in Figure 2, it is the structural representation of the upper frame of the large-scale double track inspection car centering body of the present embodiment
Figure.
It is shown in Figure 3, it is the structural representation for walking driving frame of the large-scale double track inspection car centering body of the present embodiment
Figure.It is described walk driving frame include four directive wheels, each directive wheel have wheel hub, four directive wheels are divided into two groups, positioned at front
Two directive wheels between by a wheel axis connection, by another wheel axis connection between two directive wheels being located behind.It is described
Pass through front jockey wheel crossbeam between the wheel hub of the wheel hub of front jockey wheel and the rear directive wheel and rear directive wheel crossbeam carries out hinge
Connection, the front jockey wheel crossbeam and rear directive wheel crossbeam are as directive wheel is along track transverse movement, and the front jockey wheel
The overall length of crossbeam and rear directive wheel crossbeam is more than the length of the gap in the frog of rail, can prevent servo centering body
Derailing occurs in turnout passing idle space to slide down.Preceding nave boss and rear nave boss are used into hinge connection mode,
To it is described walk driving frame there is guiding role, allowing it, crook is more easy and convenient, and such connection mode avoids by force crossing
It went curved, and made front and rear directive wheel excessively curved safer, steady.In addition, it is described walk driving frame be additionally provided with intermediate transverse girder, such as set two
A intermediate transverse girder, intermediate transverse girder is, for example, the welding of square steel H-type, and to ensure bonding strength, the commissure of intermediate transverse girder is welded
It is connected to web.
It refers to shown in Fig. 4 (a)-(d), specifically, the upper frame of large-scale double track inspection car centering body is with walking driving
Frame is connected by double leval jib (referring to Fig. 4 (c)) mode, and each contact point of the double leval jib connection uses articulated connection mode
Such as flexural pivot, refer to shown in Fig. 4 (c).Double leval jib combines hinged this mode and largely reduces the lateral force of the left and right sides, from
And enable centering body steady, the unnecessary vibration of serpentine locomotion generation can be reduced.
Also, shown in Figure 5, the upper frame of large-scale double track inspection car centering body and walking is set between driving frame
There are four hydraulic cylinder (hydraulic cylinder can also be replaced with cylinder), wheel axis connection of each hydraulic cylinder between directive wheel, each
Tie point is all using hinged as flexural pivot connects.Four hydraulic cylinders are acted on wheel shaft, and when work gives pressure, compress driving
Frame makes wheel hub be close to rail；Four hydraulic cylinders lift entire running mechanism during off working state, visit wheel with protection, extending it makes
Use the service life.The centering body is stressed on by 4 hydraulic cylinders of Fig. 5 and above structure on wheel shaft, and preferably pressing position point
It Wei Yu not can apply pressure to running mechanism, wheel hub is made to be close to rail level, will not be beated on rail level near four directive wheels,
And ensuring that ultrasonic wave visits wheel with rail surface centering with coupling well, this frame mode can avoid large-scale double track inspection car at a high speed
Up-down vibration during movement.
When the large size double track inspection car is run, the inner flange face moment of directive wheel is close to the working face of rail track, ensures
Ultrasonic wave is visited wheel and can be run on the center line of rail at the moment.
It is shown in Figure 6, be the present embodiment servo mechanism schematic diagram, servo mechanism include servo centering body and
Servo flaw detection mechanism, Fig. 6 are the structure chart of servo centering body.This servo mechanism is wheeled using visiting.The servo centering body
Pedestal be channel steel welding, per side, respectively two ultrasonic waves of connection visit wheel, visit wheel and are divided into two groups, the spy wheel of the same side is one group.
Servo centering body is installed on traveling stent, and the pedestal of servo centering body passes through connecting bracket and drives subsystem midsole
Frame (without embodying drives subsystem and its chassis in figure, this partly belongs to prior art) connection.Servo centering body can guarantee
The centering that ultrasonic wave visits wheel is adjusted, and by the adjusting of up and down adjustment motor and an electric pushrod, ultrasonic wave is made to visit wheel and is carried out
Lower position is adjusted；And pass through lateral adjustments motor and an electric pushrod and wheel progress horizontal position adjusting is visited to ultrasonic wave；Also pass through
Can at a high speed frequently the linear motor of rotating as customized linear motor and an electric pushrod and with reference to arc track, realizing angle tune
Section.Above upper-lower position is adjusted, horizontal position is adjusted and angular adjustment ensures that ultrasonic wave visits wheel and rail surface centering and coupling
It closes good.Also, every group of spy wheel can carry out horizontal displacement adjustment, upper-lower height adjustment and angle adjustment, tool by SERVO CONTROL
Have simple in structure, repair the advantages that easy to loading and unloading.
Shown in Figure 7, using electric pushrod form, electric pushrod has motor band for the horizontal displacement adjustment of every group of spy wheel
Dynamic, an electric pushrod can drive two of side to visit wheel, and electric pushrod moves inward, and can drive every group of spy wheel inwardly
It is mobile；Electric pushrod moves outward, and every group of spy wheel can be driven to move outward.
It refers to shown in Fig. 8 and Fig. 9, the angle adjustment of every group of spy wheel coordinates arc track such as circular arc rail using electric pushrod
The form in road is realized.Specifically, Fig. 9, electric pushrod and the spy wheel carrier hinge connection for visiting wheel are referred to, each spy wheel is fixed to be connected
The sliding block that can be slided on arc orbit is connected to, electric pushrod is pushed toward outside or inside shrinks then to drive and visits wheel carrier and pass through
Visiting wheel carrier drives spy wheel and sliding block to be synchronized with the movement, and since slide block movement is carried out along arc orbit, visits the operation of wheel
Also it is the circular arc identical with arc orbit, i.e., has carried out angle adjustment relative to the center of circle of the circular arc, so as to which electric pushrod coordinates
Arc orbit realizes the angle adjustment for visiting wheel group.
Shown in Figure 10, using electric pushrod form, electric pushrod is driven by motor for the vertical adjustment of every group of spy wheel,
It when electric pushrod moves down, visits wheel and is moved down along vertical lead, play the role of compressing visiting and take turns, on the contrary electric pushrod
When up moving, visit wheel and lift.Also, power is lifted more than pressing force.
By above-mentioned three kinds of shaping modes, servo centering body can guarantee that ultrasonic wave visits the adjusting control of wheel, make ultrasonic wave
Visiting wheel can axially move left and right and swing relative to rail rail level in radial direction independently of directive wheel；By upper and lower
Position adjust, make ultrasonic wave visit wheel have certain pressing force to rail surface, it is ensured that ultrasonic wave visit wheel with rail surface centering with
Coupling is good.
In addition, the large size double track inspection car is additionally provided with coupling liquid spraying mechanism, specifically, the coupling liquid spraying mechanism by
Liquid container, coupling liquid spray pipeline, nozzle and booster pump composition are coupled, and can be set to away on driving frame；Before each spy wheel
One nozzle is respectively set afterwards.The effect of coupling liquid spraying mechanism is by uniformly spraying coupling liquid, ultrasonic wave being made to visit wheel and rail
Close-coupled ensures that signal is good, and by pressure adjusting and flow control, can meet and provide coupling liquid for long range flaw detection
Requirement.
The large size double track inspection car servo flaw detection mechanism mainly include ultrasonic wave visit wheel, analog circuit, signal processing and
Four parts of display circuit and control circuit form a whole set of data and receive processing system.Wherein, analog circuit, signal processing are shown
Show circuit, control circuit is standardized module, and an electric cabinet is connected to by visiting wheel data line.Wherein：
The wheel that the ultrasonic wave visits wheel is made by entrant sound resin material, inside fills entrant sound liquid, 18 probes are fixed on axis,
Shown in Figure 11, wherein these probes include：70 degree pop one's head in 12,37.5 degree pop one's head in 4,0 degree pop one's head in 2 and other
The attachment of probe is installed.Axis, that is, probe core among popping one's head in.When the large size double track inspection car is detected a flaw, wheel is visited with the inspection car
Movement and rotate, and probe core therein is motionless, to keep the transmitting of ultrasonic wave and to receive direction constant.
Transmitting and receiving module (ultrasonic wave that for transmitting and receiving reflects) of the analog circuit including ultrasonic wave are led to
Road selecting module and Signal-regulated kinase, main generation, transmitting, the reception for realizing ultrasonic wave receive the amplification filtering after echo,
Signal processing and display circuit are sent into after level conversion；
The signal processing is based on DSP Technology designs and manufacture with display circuit, including high-speed a/d acquisition module, DSP cores
Piece, data disaply moudle and dual port RAM.Pass through the processing of Signal-regulated kinase in analog circuit, the echo-signal quilt of ultrasonic wave
Electric signal is converted into, using amplification and shaping, is sent into high-speed a/d acquisition module.It is sent into through the transformed digitalized datas of A/D
Various algorithm process are carried out inside dsp chip, wave-path, peak value and the serial number of pulse repetition period of echo-signal will be recorded,
It forms data file and is sent to data disaply moudle, and processed data deposit dual port RAM is periodically supplied to the chip of control circuit
It reads.
The control circuit includes ROM, dsp chip, USB/RS232 interfaces and peripheral hardware.In order to improve the real-time of system,
One master-slave system is formed using high speed MCU chip and dsp chip, it is only necessary to complete complicated algorithm, control for such dsp chip
The work of system acquisition external data, output control signal and finishing man-machine interaction transfers to MCU chip to complete.Made using dual port RAM
Communication medium between dsp chip and MCU chip, the transmission of realization mass data that can be fast and reliable.MCU chip is regular
The data by signal processing and display circuit deposit dual port RAM are read, then are dumped in ROM, result of detection can be passed through
USB/RS232 interfaces are dumped in other computers, convenient for further analysis and processing after the completion of flaw detection.In carrying out flaw detection process
In, can by be connected to the peripheral hardwares such as computer and by operator operate computer keyboard, mouse display portion is controlled in real time and
Detection parameters are adjusted in real time.
The servo flaw detection mechanism data sampling and processing automation of the present invention, has certain intelligence and sentences the ability of wound.
The present invention overcomes the deficiencies in the prior art, provide a kind of large-scale double track automatic flaw detection of combination ultrasonic scanning
The centering body of vehicle and the inspection car is visited wheel and is close to simultaneously with running mechanism, it can be achieved that the automatic ultrasonic inspection of rail and positioning
It moves along rail, to the ultrasonic wave of rail transmitting all angles, and according to the waveform of reflected ultrasonic wave received, sentences
Disconnected hurt simultaneously positions, especially suitable for detection rail's end portion transverse direction fatigue crack (core wound), Crack In Bolt Hole, waist shear crack and
Rail vertical equity crackle equivalent damage.
The present invention ensures the lossless propagation of ultrasonic wave using 2 groups of spy wheel flaw detection modes；Fault detection system is set using high speed acquisition
Standby that signal is sampled, the data after acquisition are handled, and judgement hurt is given to signal data using the software of profession
And certain intelligent alarm function, such as judged simultaneously to show over the display when finding hurt or other common alarm sides
Formula.
The centering structure of the large-scale double track automatic flaw detection vehicle of the present invention exists to ensure that wheel is especially visited by servo flaw detection mechanism
Stability on track by designing and calculating, reduces up-down vibration and the serpentine locomotion of servo flaw detection mechanism, while also setting
Inconvenience during bend was optimized on meter.
The present invention the large size double track automatic flaw detection vehicle centering body by upper part connecting vehicle frame, walk driving frame and under
Partial servo centering body is composed, it is compact to design, be easily installed, be easy to operate, detection efficiency it is high, improve track
Repair quality reduces security risk to the maximum extent.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is in order to preferably explain the present invention
Principle and practical application, so as to which skilled artisan be enable to be best understood by and utilize the present invention.The present invention is only
It is limited by claims and its four corner and equivalent.
Claims (12)
1. a kind of large size double track inspection car centering body, which is characterized in that including upper frame, walk driving frame and servo transducer
Structure, the servo centering body are walked described on driving frame；Wherein, the upper frame and it is described walk driving frame pass through four
Connecting rod mode connects, and each contact point of the double leval jib connection uses articulated connection mode.
2. large size double track inspection car centering body as described in claim 1, which is characterized in that the articulated connection mode is ball
It is hinged.
3. large size double track inspection car centering body as described in claim 1, which is characterized in that the upper frame with it is described walk
Be provided with multiple cylinders or hydraulic cylinder between driving frame, the cylinder and hydraulic cylinder be used for it is described walk driving frame pressurize.
4. large size double track inspection car centering body as claimed in claim 3, which is characterized in that it is described walk driving frame include four
Directive wheel, the cylinder or hydraulic cylinder are acted on the wheel shaft of the directive wheel.
5. large size double track inspection car centering body as claimed in claim 4, which is characterized in that the cylinder or hydraulic cylinder and institute
The wheel shaft for stating directive wheel is hinged.
6. large size double track inspection car centering body as described in claim 1, which is characterized in that the servo centering body includes
Level tune clamp mechanism, the Level tune clamp mechanism is by a lateral adjustments motor and an electric pushrod to servo centering body
Ultrasonic wave visit wheel carry out Level tune.
7. large size double track inspection car centering body as described in claim 1, which is characterized in that the servo centering body includes
Up and down adjustment clamp mechanism, the up and down adjustment clamp mechanism is by a up and down adjustment motor and an electric pushrod to servo centering body
Ultrasonic wave visit wheel carry out up and down adjustment.
8. large size double track inspection car centering body as described in claim 1, which is characterized in that the servo centering body includes
Angular adjustment clamp mechanism, wherein, the angular adjustment clamp mechanism by one can at a high speed frequently rotating linear motor and one electricity
Dynamic push rod simultaneously realizes that the ultrasonic wave of servo centering body visits the angular adjustment of wheel with unification arc track.
9. large size double track inspection car centering body as described in claim 1, which is characterized in that it is described walk driving frame include it is leading
Preceding nave boss and rear nave boss are hinged to wheel crossbeam and rear directive wheel crossbeam, the front jockey wheel crossbeam and rear directive wheel crossbeam, institute
The overall length for stating front jockey wheel crossbeam and rear directive wheel crossbeam is more than the length of gap in the frog.
10. a kind of large size double track inspection car, which is characterized in that be provided with the large-scale double track described in any one of claim 1-9
Inspection car centering body.
11. large size double track inspection car as claimed in claim 10, which is characterized in that servo flaw detection mechanism is further included, it is described to watch
Clothes flaw detection mechanism mainly includes ultrasonic wave and visits four wheel, analog circuit, signal processing and display circuit and control circuit parts,
Described in signal processing and display circuit be based on DSP Technology designs and manufacture, including high-speed a/d acquisition module, a dsp chip,
Data disaply moudle and dual port RAM.
12. large size double track inspection car as claimed in claim 11, which is characterized in that the control circuit includes ROM, a DSP
Chip, USB/RS232 interfaces and peripheral hardware；Wherein, a master-slave system, DSP cores are formed using high speed MCU chip and dsp chip
Piece completes complicated algorithm, and MCU chip completes the work of control acquisition external data, output control signal and finishing man-machine interaction
Make, and use dual port RAM as the communication medium between dsp chip and MCU chip.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105946878B (en) * | 2016-04-27 | 2018-09-18 | 上海市东方海事工程技术有限公司 | A kind of subway double track rail-defect detector car |
| CN106274978A (en) * | 2016-08-22 | 2017-01-04 | 合肥德泰科通测控技术有限公司 | Rail-defect detector car intellectuality center support system |
| CN106628912A (en) * | 2017-01-19 | 2017-05-10 | 广西曼彻彼斯自动化设备有限公司 | Small rail logistics car driving gear buffering device |
| CN106828536B (en) * | 2017-03-20 | 2019-12-31 | 陈志远 | Chassis structure of double-rail flaw detection vehicle |
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