CN105445379A - Aligning mechanism of large double-track flaw detection car - Google Patents
Aligning mechanism of large double-track flaw detection car Download PDFInfo
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- CN105445379A CN105445379A CN201511024257.1A CN201511024257A CN105445379A CN 105445379 A CN105445379 A CN 105445379A CN 201511024257 A CN201511024257 A CN 201511024257A CN 105445379 A CN105445379 A CN 105445379A
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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 an aligning mechanism of a large double-track flaw detection car. The mechanism comprises an upper frame, a walking frame and a servo aligning mechanism, wherein the upper frame and the walking frame are connected in a four-bar linkage mode, and each contact point for the four-bar linkage adopts a hinged connection mode; multiple cylinders or hydraulic cylinders are arranged between the upper frame and the walking frame and used for pressurizing the walking frame. According to the aligning mechanism of the large double-track flaw detection car, good aligning and coupling of ultrasonic wheel detectors and steel track top surfaces of a servo flaw detection mechanism of the large double-track flaw detection car are guaranteed, vertical vibration and snaking motion of the servo flaw detection mechanism are reduced, and meanwhile, inconvenience caused when the large double-track flaw detection car passes a bend is optimized in the aspect of design; besides, the aligning mechanism further has the advantages of compact design, convenience in mounting, simplicity and convenience in operation and the like.
Description
Technical field
The present invention relates to a kind of centering body of rail examination equipment, particularly a kind of large-scale double track inspection car centering body in conjunction with ultrasonic scanning.
Background technology
Railway, as the main artery of national economy, is one of national most important infrastructure, is also to be related to the most popular mode of transportation of we each citizen.
In railway traffic, the function of rail is that guided vehicle wheel advances, and bears the immense pressure from wheel.Train accelerate and braking procedure in and by gap, bend and track switch time, to rail cause friction, extruding, bend and percussive action, in-service rail bears repeatedly rolling of wheel for a long time, inevitably there is fatigue defect and defect.Therefore in order to ensure the safe operation of locomotive, need often to carry out carrying out flaw detection to in-service rail, there is the hurt in rail in Timeliness coverage, to adopt remedial measures, takes precautions against in possible trouble.
Current, the rail examination work of China is still in based on hand propelled flaw detection trolley, and large-scale inspection car is auxiliary situation.Hand propelled flaw detection trolley operating efficiency is low, and its detection speed is generally 2 ~ 3km per hour, and inspection speed is low.Along with the increase that train speed improves and axle is heavy, add that environment reason causes expanding with heat and contract with cold of metal, rail failure speed is corresponding quickening also, makes sense cycle also have the trend of shortening.
Along with the various Line for Passenger Transportation of China and Shanghai and Nanjing, Shanghai-Hangzhou high speed inter-city passenger rail open operation, Line for Passenger Transportation and high-speed railway circuit are supported and are repaiied system issuing and implementation, and the pattern that traditional hand propelled flaw detection trolley rail on train gap carries out detecting can not adapt to support repaiies institutional change needs.Railway interests proposes to adopt " skylight " operating type for this reason, namely certain interval circuit is provided to the activity duration of 1-3 hour, does not have train operation during this period.In this case, the drawback that the detection efficiency of traditional hand propelled flaw detection trolley is low just seems particularly outstanding.Therefore the demand of the fast large-scale inspection car of detection speed is constantly increased.
When large-scale inspection car high-speed cruising, servo flaw detection mechanism can produce serpentine locomotion and up-down vibration, has an impact, therefore need to improve to the accuracy detected, and to enable ultrasonic testing system precise alignment, ensures to detect data accurate.Chinese patent application 201410608424.6 discloses " a kind of center support system of steel rail flaw detection device and method ", and this system adopts servo centering completely, causes its cost very high.
Summary of the invention
The invention provides a kind of large-scale double track inspection car centering body, solve the medium-and-large-sized inspection car of prior art can produce serpentine locomotion and up-down vibration technical matters when high-speed cruising at lower cost.
Technical scheme of the present invention is as follows:
A kind of large-scale double track inspection car centering body, comprises upper frame, walks driving frame and servo centering body; Wherein, described upper frame with described walk driving frame be connected by double leval jib mode, each contact point that described double leval jib connects all adopts the mode of being articulated and connected.
In an embodiment, the mode of being articulated and connected of each contact point of described double leval jib is that ball pivot connects.
In a preferred embodiment, described upper frame and describedly walk to be provided with multiple cylinder or hydraulic cylinder between driving frame, described cylinder and hydraulic cylinder be used for described walk driving frame pressurization.
In a preferred embodiment, described in walk driving frame and comprise four angle sheaves, described cylinder or hydraulic cylinder act on the wheel shaft of described angle sheave.
In a preferred embodiment, the wheel shaft of described cylinder or hydraulic cylinder and described angle sheave is hinged.
In a preferred embodiment, described servo centering body comprises Level tune clamp mechanism, and described Level tune clamp mechanism is visited wheel by a lateral adjustments motor and electric pushrod to the ultrasound wave of servo centering body and carried out Level tune.
In a preferred embodiment, described servo centering body comprises up-down adjustment clamp mechanism, and described up-down adjustment clamp mechanism is visited wheel by a up-down adjustment motor and electric pushrod to the ultrasound wave of servo centering body and carried out up-down adjustment.
In a preferred embodiment, described servo centering body comprises angular adjustment clamp mechanism, wherein, described angular adjustment clamp mechanism at a high speed the linear electric motors of frequent rotating and electric pushrod the ultrasound wave coordinating an arc track to realize servo centering body can visit the angular adjustment of wheel by one.
In a preferred embodiment, described walk driving frame comprise front jockey wheel crossbeam and rear angle sheave crossbeam, described front jockey wheel crossbeam and rear angle sheave crossbeam by front nave boss and rear nave boss hinged, the overall length of described front jockey wheel crossbeam and rear angle sheave crossbeam is greater than the length of gap in the frog.
The present invention also provides a kind of large-scale double track inspection car, and it is provided with above-mentioned arbitrary large-scale double track inspection car centering body.
In a preferred embodiment of the invention, described large-scale double track inspection car also comprises servo flaw detection mechanism, described servo flaw detection mechanism mainly comprises ultrasound wave and visits wheel, mimic channel, signal transacting and display circuit and control circuit four parts, wherein said signal transacting and display circuit, based on DSP technical design and manufacture, comprise high-speed a/d acquisition module, a dsp chip, data disaply moudle and dual port RAM.
In a preferred embodiment of the invention, described control circuit comprises ROM, a dsp chip, USB/RS232 interface and peripheral hardware; Wherein, high speed MCU chip and dsp chip is adopted to form a master slave system, dsp chip completes complicated algorithm, and MCU chip completes the work controlling to gather external data, export control signal and finishing man-machine interaction, and uses dual port RAM as the communication medium between dsp chip and MCU chip.
Compared with prior art, beneficial effect of the present invention is as follows:
Large-scale double track inspection car centering body of the present invention ensure that the ultrasound wave of the servo flaw detection mechanism of large-scale double track inspection car visit wheel and the coupling of rail surface centering good, decrease up-down vibration and the serpentine locomotion of servo flaw detection mechanism, also optimize inconvenience during bend simultaneously in design; Meanwhile, its also have compact to design, be convenient to install, the advantage such as easy and simple to handle.
Certainly, implement arbitrary product of the present invention might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
Fig. 1 is the perspective view of the large-scale double track inspection car centering body of the embodiment of the present invention;
Fig. 2 is the structural drawing 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;
The flaw detection mechanism of the large-scale double track inspection car centering body that Fig. 4 (a)-(d) is the embodiment of the present invention avoids the structural representation of serpentine locomotion; Wherein, Fig. 4 (a) is inspection car straight line moving state vertical view, Fig. 4 (b) is inspection car straight line moving state front view, and Fig. 4 (c) is inspection car serpentine locomotion state vertical view, and Fig. 4 (d) is inspection car serpentine locomotion state front view;
Fig. 5 is the structural representation that the flaw detection mechanism of the large-scale double track inspection car centering body of the embodiment of the present invention avoids up-down vibration;
Fig. 6 is the servo centering body structural drawing 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 is to spy wheel horizontal adjustment schematic diagram;
Fig. 8 is that the servo centering body of the large-scale double track inspection car centering body of the embodiment of the present invention is to spy wheel angular setting schematic diagram one;
Fig. 9 is that the servo centering body of the large-scale double track inspection car centering body of the embodiment of the present invention is to spy wheel angular setting 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 adjusts schematic diagram up and down to spy wheel;
Figure 11 is that the probe of the servo centering body of the large-scale double track inspection car centering body of the embodiment of the present invention arranges schematic diagram.
Embodiment
The invention discloses a kind of large-scale double track inspection car centering body.
Along with science and technology constantly develops and progress, we more and more pay attention to safety.Fundamental purpose of the present invention is good for the coupling of the ultrasound wave spy wheel and rail surface centering that ensure the servo flaw detection mechanism of the automatic flaw detection of large-scale double track inspection car.
The present invention will be further described in below, and to enable those skilled in the art better understand the present invention, but protection scope of the present invention is not limited only to following embodiment.
Embodiment
Present embodiment discloses a kind of large-scale double track inspection car, it is provided with large-scale double track inspection car centering body, and this centering body comprises upper frame, walks driving frame and servo centering body.Concrete shown in Figure 1 in the present embodiment, the top of centering body is divided into connecting vehicle frame, middle part is divided into walking driving frame, bottom is divided into servo centering body.Particularly, servo centering body comprises two groups.
Centering body of the present invention adopts three parts assembled, compact conformation, be convenient to install.
This large-scale double track inspection car has from traveling function, particularly, above-mentioned centering body can be walked driving frame electric automatization, can carry out adjustment control according to the motion of this large-scale double track inspection car.
Shown in Figure 2, be the structural representation of the upper frame of the large-scale double track inspection car centering body of the present embodiment.
Shown in Figure 3, be the structural representation walking driving frame of the large-scale double track inspection car centering body of the present embodiment.Described walk driving frame comprise four angle sheaves, each angle sheave has wheel hub, and four angle sheaves are divided into two groups, between two angle sheaves in front by one wheel shaft connect, connected by another wheel shaft between two angle sheaves at rear.Chain connection is carried out by front jockey wheel crossbeam and rear angle sheave crossbeam between the wheel hub of described front jockey wheel and the wheel hub of described rear angle sheave, described front jockey wheel crossbeam and rear angle sheave crossbeam are along with angle sheave is along track transverse movement, and the overall length of described front jockey wheel crossbeam and rear angle sheave crossbeam is greater than the length of the gap in the frog of rail, can prevent servo centering body from the generation of the situations such as derailing slides down occurring when turnout passing idle space.Front nave boss and rear nave boss are adopted chain connection mode, to described walk driving frame there is guide effect, be allowed to condition at crook more easy and convenient, and such connected mode avoids excessively curved by force, front and back angle sheave is crossed curved safer, steady.In addition, described in walk driving frame and be also provided with intermediate transverse girder, such as arrange two intermediate transverse girders, intermediate transverse girder is such as the welding of square steel H type, and for ensureing strength of joint, the commissure of intermediate transverse girder is all welded with web.
Refer to shown in Fig. 4 (a)-(d), particularly, the upper frame of large-scale double track inspection car centering body with walk driving frame and be connected by double leval jib (referring to Fig. 4 (c)) mode, each contact point that described double leval jib connects adopts the mode of being articulated and connected as ball pivot, refers to shown in Fig. 4 (c).The side force of left and right sides major part reduces in conjunction with hinged this mode by double leval jib, thus makes centering body steadily, can reduce the unnecessary vibration that serpentine locomotion produces.
And, shown in Figure 5, the upper frame of large-scale double track inspection car centering body and walk between driving frame to be provided with four hydraulic cylinders (hydraulic cylinder also can replace with cylinder), each hydraulic cylinder is all connected with the wheel shaft between angle sheave, and each tie point adopts hinged as ball pivot connection.Four hydraulic cylinders act on wheel shaft, give pressure during work, compress driving frame, make wheel hub be close to rail; During off working state, four hydraulic cylinders mention whole running mechanism, visit wheel, extend its serviceable life to protect.This centering body stresses on wheel shaft by 4 hydraulic cylinders of Fig. 5 and said structure, and preferably pressing position lays respectively near four angle sheaves, pressure can be applied to running mechanism, wheel hub is made to be close to rail level, can not beat on rail level, and guarantee that ultrasound wave is visited wheel and rail surface centering and is coupled well, this frame mode can avoid large-scale double track inspection car up-down vibration when high-speed motion.
When this large-scale double track inspection car runs, the inner flange face moment of angle sheave is close to the workplace of rail track, ensure that ultrasound wave visit wheel can time be engraved in rail center line on run.
Shown in Figure 6, be the schematic diagram of the servo control mechanism of the present embodiment, servo control mechanism comprises servo centering body and servo flaw detection mechanism, and Fig. 6 is the structural drawing of servo centering body.This servo control mechanism adopts spy wheeled.The pedestal of described servo centering body is channel-section steel welding, and every side connects two ultrasound waves and visits wheel, visits wheel and is divided into two groups, and the spy wheel of the same side is one group.Servo centering body is installed on traveling support, and the pedestal of servo centering body is connected by underframe in connection bracket and driver sub-system (do not embody driver sub-system and underframe thereof in figure, this part belongs to prior art).Servo centering body can ensure that ultrasound wave visits the centering adjustment of wheel, and it passes through the adjustment of up-down adjustment motor and an electric pushrod, makes ultrasound wave visit wheel and carries out upper-lower position adjustment; And by lateral adjustments motor and an electric pushrod, horizontal level adjustment is carried out to ultrasound wave spy wheel; Also by the linear electric motors of at a high speed frequent rotating in conjunction with arc track, angular adjustment can be realized as customization linear electric motors and an electric pushrod.Above upper-lower position regulates, horizontal level regulates and angular adjustment guarantees that ultrasound wave is visited wheel and rail surface centering and is coupled well.Further, often group is visited to take turns and is carried out horizontal shift adjustment by servocontrol, and upper-lower height adjustment and angular setting, have structure simple, keep in repair the advantages such as easy to loading and unloading.
Shown in Figure 7, often group visits the horizontal shift adjustment employing electric pushrod form of taking turns, and electric pushrod has driven by motor, and an electric pushrod can drive two of side to visit wheel, and electric pushrod moves to the inside, can drive often to organize to visit to take turns and move to the inside; Electric pushrod moves laterally, often group can be driven to visit wheel and move laterally.
Refer to shown in Fig. 8 and Fig. 9, often the angular setting of group spy wheel adopts electric pushrod to coordinate arc track such as the form of arc orbit to realize.Particularly, refer to Fig. 9, the spy wheel carrier chain connection that electric pushrod is taken turns with spy, each spy wheel is all fixedly connected with the slide block that can slide on arc orbit, electric pushrod side promotion outward or inner side are shunk then drive and are visited wheel carrier and drive spy wheel and slide block to be synchronized with the movement by spy wheel carrier, because slide block movement carries out along arc orbit, therefore the operation visiting wheel is also the circular arc identical with arc orbit, namely carried out angular setting relative to the center of circle of this circular arc, thus electric pushrod fit circular arc track achieves the angular setting visiting wheels.
Shown in Figure 10, often group visits the vertical adjustment employing electric pushrod form of wheel, and electric pushrod is by driven by motor, when electric pushrod moves down, visit wheel and move down along vertical guidepost, play the effect compressing and visit wheel, when otherwise electric pushrod up moves, visit wheel and lift.Further, lift power and be greater than snap-in force.
By above-mentioned three kinds of shaping modes, servo centering body can ensure that ultrasound wave visits the regulable control of wheel, enables ultrasound wave visit wheel and is axially moving left and right independent of angle sheave, and swing in radial direction relative to rail rail level; Regulated by upper-lower position, making ultrasound wave visit wheel has certain snap-in force to rail surface, guarantees that ultrasound wave is visited wheel and rail surface centering and is coupled well.
In addition, this large-scale double track inspection car is also provided with coupling liquid spraying mechanism, and particularly, this coupling liquid spraying mechanism is made up of coupling liquid container, coupling liquid spray pipeline, nozzle and supercharge pump, and can be arranged at away on driving frame; Before and after each spy wheel, a nozzle is respectively set.The effect of coupling liquid spraying mechanism is by evenly spraying coupling liquid, ultrasound wave is visited and takes turns and rail close-coupled, ensures that signal is good, and is regulated and flow control by pressure, can meet for the long requirement providing coupling liquid apart from flaw detection.
The servo flaw detection mechanism of this large-scale double track inspection car mainly comprises ultrasound wave and visits wheel, mimic channel, signal transacting and display circuit and control circuit four parts, forms a whole set of data and accepts disposal system.Wherein, mimic channel, signal transacting, display circuit, control circuit is standardized module, is connected to an electric cabinet by spy wheel data line.Wherein:
The wheel that described ultrasound wave visits wheel is made by entrant sound resin material, inside fill entrant sound liquid, axle is fixed with 18 probes, shown in Figure 11, wherein these probes comprise: the annex of 70 degree of probes, 12,37.5 degree probes, 4,0 degree probe 2 and other installation probes.Axle in the middle of probe and probe core.When this large-scale double track inspection car is detected a flaw, visit wheel and rotate with the motion of this inspection car, and probe core is wherein motionless, to keep hyperacoustic transmitting and receiving direction constant.
Described mimic channel comprises hyperacoustic launching and receiving module (for transmitting and receiving the ultrasound wave of reflection), channel selecting module and Signal-regulated kinase, mainly realize hyperacoustic generation, transmitting, reception, receive the amplification filtering after echo, after level conversion, send into signal transacting and display circuit;
Described signal transacting and display circuit, based on DSP technical design and manufacture, comprise high-speed a/d acquisition module, dsp chip, data disaply moudle and dual port RAM.By the process of Signal-regulated kinase in mimic channel, hyperacoustic echoed signal is converted into electric signal, then through amplifying and shaping, sends into high-speed a/d acquisition module.Digitalized data after A/D conversion is sent into dsp chip inside and is carried out various algorithm process, the wave-path of echoed signal, peak value and the sequence number of pulse repetition time will be recorded, form data file and deliver to data disaply moudle, and regularly the data processed are read stored in the chip of dual port RAM for control circuit.
Described control circuit comprises ROM, dsp chip, USB/RS232 interface and peripheral hardware.In order to improve the real-time of system, high speed MCU chip and dsp chip is adopted to form a master slave system, such dsp chip has only needed complicated algorithm, and the work controlling to gather external data, export control signal and finishing man-machine interaction transfers to MCU chip to complete.Use dual port RAM as the communication medium between dsp chip and MCU chip, can the transmission that mass data be realized of fast and reliable.MCU chip regularly reads by signal transacting and the display circuit data stored in dual port RAM, then is dumped in ROM, result of detection can be dumped in other computing machines by USB/RS232 interface, be convenient to flaw detection complete after further treatment and analysis.In carrying out flaw detection process, by being connected to the peripheral hardwares such as computer and controlling in real time display section by the keyboard of operator's operating computer, mouse and adjust in real time detected parameters.
Servo flaw detection mechanism of the present invention data sampling and processing robotization, possesses certain intellectuality and sentences the ability of wound.
Instant invention overcomes the deficiencies in the prior art, provide a kind of in conjunction with the large-scale double track automatic flaw detection car of ultrasonic scanning and the centering body of this inspection car, automatic ultrasonic inspection and the location of rail can be realized, visit wheel be close to running mechanism and move along rail, the ultrasound wave of all angles is launched to rail, and according to the hyperacoustic waveform reflected received, judge hurt and locate, being specially adapted to detect the horizontal fatigue crack (core wound) of rail's end portion, Crack In Bolt Hole, waist shear crack and rail vertical equity crackle equivalent damage.
The present invention adopts 2 groups of spy wheel flaw detection modes to guarantee hyperacoustic lossless propagation; Fault detection system adopts high speed acquisition equipment to sample to signal, the software of the data acquisition specialty after collection processes, and give to judge hurt and certain intelligent alarm function to signal data, such as carry out judgement when finding hurt and show over the display or other conventional type of alarms.
The centering structure of large-scale double track automatic flaw detection car of the present invention is in order to ensure that wheel stability in orbit is especially visited by servo flaw detection mechanism, by designing and calculating, reduce up-down vibration and the serpentine locomotion of servo flaw detection mechanism, also optimize inconvenience during bend simultaneously in design.
The centering body of this large-scale double track automatic flaw detection car of the present invention is combined by the connecting vehicle frame of upper part, the servo centering body of walking driving frame and lower part, compact to design, be convenient to install, easy and simple to handle, detection efficiency is high, improve the repair quality of track, reduce potential safety hazard to greatest extent.
The disclosed preferred embodiment of the present invention just sets forth the present invention for helping above.Preferred embodiment does not have all details of detailed descriptionthe, does not limit the embodiment that this invention is only described yet.Obviously, according to the content of this instructions, can make many modifications and variations.This instructions is chosen and is specifically described these embodiments, is to explain principle of the present invention and practical application better, thus makes art technician understand well and to utilize the present invention.The present invention is only subject to the restriction of claims and four corner and equivalent.
Claims (12)
1. a large-scale double track inspection car centering body, is characterized in that, comprise upper frame, walks driving frame and servo centering body; Wherein, described upper frame with described walk driving frame be connected by double leval jib mode, each contact point that described double leval jib connects all adopts the mode of being articulated and connected.
2. large-scale double track inspection car centering body as claimed in claim 1, is characterized in that, described in the mode of being articulated and connected be ball pivot connect.
3. large-scale double track inspection car centering body as claimed in claim 1, is characterized in that, described upper frame and describedly walk to be provided with multiple cylinder or hydraulic cylinder between driving frame, described cylinder and hydraulic cylinder be used for described walk driving frame pressurization.
4. large-scale double track inspection car centering body as claimed in claim 3, is characterized in that, described in walk driving frame and comprise four angle sheaves, described cylinder or hydraulic cylinder act on the wheel shaft of described angle sheave.
5. large-scale double track inspection car centering body as claimed in claim 4, is characterized in that, the wheel shaft of described cylinder or hydraulic cylinder and described angle sheave is hinged.
6. large-scale double track inspection car centering body as claimed in claim 1, it is characterized in that, described servo centering body comprises Level tune clamp mechanism, described Level tune clamp mechanism by a lateral adjustments motor and
One electric pushrod is visited wheel to the ultrasound wave of servo centering body and is carried out Level tune.
7. large-scale double track inspection car centering body as claimed in claim 1, it is characterized in that, described servo centering body comprises up-down adjustment clamp mechanism, and described up-down adjustment clamp mechanism is visited wheel by a up-down adjustment motor and an electric pushrod to the ultrasound wave of servo centering body and carried out up-down adjustment.
8. large-scale double track inspection car centering body as claimed in claim 1, it is characterized in that, described servo centering body comprises angular adjustment clamp mechanism, wherein, described angular adjustment clamp mechanism at a high speed the linear electric motors of frequent rotating and an electric pushrod the ultrasound wave coordinating an arc track to realize servo centering body can visit the angular adjustment of wheel by one.
9. large-scale double track inspection car centering body as claimed in claim 1, it is characterized in that, described walk driving frame comprise front jockey wheel crossbeam and rear angle sheave crossbeam, described front jockey wheel crossbeam and rear angle sheave crossbeam by front nave boss and rear nave boss hinged, the overall length of described front jockey wheel crossbeam and rear angle sheave crossbeam is greater than the length of gap in the frog.
10. a large-scale double track inspection car, is characterized in that, is provided with the large-scale double track inspection car centering body according to any one of claim 1-9.
11. large-scale double track inspection cars as claimed in claim 10, it is characterized in that, also comprise servo flaw detection mechanism, described servo flaw detection mechanism mainly comprises ultrasound wave and visits wheel, mimic channel, signal transacting and display circuit and control circuit four parts, wherein said signal transacting and display circuit, based on DSP technical design and manufacture, comprise high-speed a/d acquisition module, a dsp chip, data disaply moudle and dual port RAM.
12. large-scale double track inspection cars as claimed in claim 11, it is characterized in that, described control circuit comprises ROM, a dsp chip, USB/RS232 interface and peripheral hardware; Wherein, high speed MCU chip and dsp chip is adopted to form a master slave system, dsp chip completes complicated algorithm, and MCU chip completes the work controlling to gather external data, export control signal and finishing man-machine interaction, and uses dual port RAM as the communication medium between dsp chip and MCU chip.
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| CN105946878A (en) * | 2016-04-27 | 2016-09-21 | 上海市东方海事工程技术有限公司 | Double-rail flaw detecting car for subway steel rails |
| 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 |
| CN106828536A (en) * | 2017-03-20 | 2017-06-13 | 陈志远 | The chassis structure of double rail type inspection car |
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