CN202669573U - Control system circuit of heavy-duty hydraulic plate transportation vehicle - Google Patents
Control system circuit of heavy-duty hydraulic plate transportation vehicle Download PDFInfo
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- CN202669573U CN202669573U CN 201220298263 CN201220298263U CN202669573U CN 202669573 U CN202669573 U CN 202669573U CN 201220298263 CN201220298263 CN 201220298263 CN 201220298263 U CN201220298263 U CN 201220298263U CN 202669573 U CN202669573 U CN 202669573U
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Abstract
The utility model relates to a control system circuit of a heavy-duty hydraulic plate transportation vehicle. The control system circuit comprises an engine speed control system, a running drive control system, a platform lifting control system and a steering control system, wherein the engine speed control system comprises an accelerator pedal, an analog signal acquisition device, an engine execution mechanism, an engine speed sensor and a speed controller, the accelerator pedal is used for outputting accelerator pedal signals to the analog signal acquisition device, the analog signal acquisition device is used for outputting engine working commands to the speed controller, the speed controller is used for outputting speed commands to the engine execution mechanism, and the engine speed sensor is used for outputting engine speed signals to the speed controller. By adopting the control system circuit of the heavy-duty hydraulic plate transportation vehicle, the synchronization can be improved during the steering process, wear of tires can be reduced, and the safety of operation can be improved; and compensation adjustment can be provided by a lifting system, the stretching of a suspended hydraulic cylinder can be adjusted automatically, and the frame deformation can be avoided or reduced.
Description
Technical field
The utility model relates to a kind of heavy hydraulic flat bed transport vehicle control system loop, relates in particular to the turning to of a kind of heavy hydraulic flat bed transport vehicle, driving, elevating control loop, belongs to the hydraulic flat car technical field.
Background technology
Along with the develop rapidly of China's economic construction, in every field such as military affairs, bridge, machinery, shipbuilding, metallurgy and petrochemical compleies, large-scale construction project is more and more, and task is installed in the transportation of heavy wares and heavy type structure sharply to be increased.The demand of heavy Transport Machinery is increased, and large-scale heavy flat transport vehicle (hereinafter to be referred as flat truck) transports the equipment of this kind equipment and member and demonstrates increasing effect as a kind of.And hydraulic-driven, fluid-link steering and the lifting of transporting in the flat truck of this kind equipment and member also must have the complicated control system of a cover.What the steering swivel system of traditional hydraulic flat car adopted is the flexible realization of multiway valve control oil cylinder turning function, though structure is simple, but control accuracy is not high, and the synchronism in the steering procedure is difficult to realize; The jacking system of traditional hydraulic flat car adopts be AC servo motor and AC servo driver or AC converter in conjunction with the system of alternating current dynamo, complex structure, power is little, control is inconvenient; What the drive system of traditional hydraulic flat car adopted is mechanical drive or hydraulic machine transmission, many gear speed transformation devices by different drive ratios make machinery adapt to broad compound and speed range requirement, yet gear has level to change can not to realize Proper Match with load request, the action need operating personal of conversion gear is suitable actual carrying out in addition, thereby can't keep machinery to adapt to all the time load variations and in optimum regime work.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of heavy hydraulic flat bed transport vehicle control system loop is provided, and it can not only improve synchronism when turning to, reduce the wearing and tearing of tire, improves processing safety; Jacking system is in the rough situation in road surface, and the stroke of suspension hydraulic cylinder is adjusted in the adjusting that can afford redress automatically, avoids or has reduced the vehicle frame distortion; And drive system can obtain desirable driving system, and it can make the rotating speed of driving engine and output torque thereof change continuously because of the variation that adapts to external loading, and keeps greater efficiency.
The purpose of this utility model is achieved in that a kind of heavy hydraulic flat bed transport vehicle control system loop, it comprises engine revolution speed control system, driving control system travels, lifting platform control system and steering control system, described engine revolution speed control system comprises Das Gaspedal, analog signal collector, the driving engine actuating unit, engine speed sensor and speed controller, described Das Gaspedal output accelerator pedal signal is to analog signal collector, the work order of described analog signal collector output engine is to speed controller, the instruction of described speed controller output speed is to the driving engine actuating unit, and described engine speed sensor output engine tach signal is to speed controller.
The described driving control system that travels comprises Das Gaspedal, direction gear lever handle, actuating unit, controller, driving pump and drive motor, described Das Gaspedal output accelerator pedal signal is to actuating unit, described direction gear lever handle output forward-reverse signal is to actuating unit, described actuating unit output speed command signal and forward-reverse signal are to controller, described controller output signal is to driving pump, and described driving pump connects drive motor.
Described lifting platform control system comprises lifting handle, touchscreen button, PLC controller, podium level sensor, pressure sensor and platform lift valve, described lifting handle or touchscreen button output lifting order are to the PLC controller, described podium level sensor and pressure sensor output signal are to the PLC controller, and described PLC controller output signal is to the lifting platform valve.
Described steering control system comprises bearing circle, direction encoder, PLC controller, rotary angle transmitter, convertible valve and steering motor motor, described bearing circle closure coder, described direction encoder output signal is to the PLC controller, described rotary angle transmitter output actual rotational angle signal is to the PLC controller, described PLC controller output diversion order is to steering pump, and described steering pump connects the steering motor motor.
Described driving control system adopts hydrostatic transmissions, and by the moving controllable capacity pump of engine direct tape splicing, controllable capacity pump drives variable-dis-placement motor, directly drives vehicle by wheel side speed reducer.
Part, integral elevating and automatic integral elevating mode that described lift control system is manual, stretching of jacking valve switch control hanging oil cylinder, 4 height sensors and 4 pressure sensor Real-time Feedback podium levels and loading condition are assisted leveling and unbalance loading, overload warning;
The motor of described steering control system proportional valve control turns to, and entirely takes turns independent steering, many axis are operated, and the action of every axis is different, can obtain a plurality of different turn radiuss.
Compared with prior art, the utlity model has following beneficial effect:
1, the motor of steering swivel system adoption rate valve control turns to, synchronism improves, can effectively reduce tire wearing and tearing in use, improve the safety of operation, what steering swivel system adopted is four-wheel steering, and different turning under the pattern can obtain different turn radiuss, this flexibly mode, can effectively reduce repetitive operation, strengthen the adaptive capacity in different road surfaces and operating mode.
2, jacking system adoption rate jacking valve adds the mode of hydraulic pressure hanging oil cylinder, this system can be in the rough situation in road surface, the stroke of suspension hydraulic cylinder is adjusted in the adjusting that affords redress automatically, avoids or has reduced the vehicle frame distortion, the up-down mode of various ways, real-time center of gravity indication, podium level indication, dead-weight capacity indication can be satisfied the loading transportation of various shape loads, simple to operate, process safety.
3, drive system adopts hydrostatic drive, and adopt suitable control setup to cooperate with it, just can obtain desirable driving system, it can make the rotating speed of driving engine and output torque thereof change continuously because of the variation that adapts to external loading, and keeps greater efficiency.Hydraulic efficiency pressure system has electrodeless meticulous speed regulates, and realizes easily rotating, can prevent the driving engine overload and have good controller performance, and mechanical characteristics and operating efficiency are improved greatly.
Description of drawings
Fig. 1 is the engine revolution speed control system functional block diagram in a kind of heavy hydraulic flat bed transport vehicle of the utility model control system loop.
Fig. 2 is the driving control system functional block diagram that travels in a kind of heavy hydraulic flat bed transport vehicle of the utility model control system loop.
Fig. 3 is the lifting platform control system functional block diagram in a kind of heavy hydraulic flat bed transport vehicle of the utility model control system loop.
Fig. 4 is the steering control system functional block diagram in a kind of heavy hydraulic flat bed transport vehicle of the utility model control system loop.
The specific embodiment
Referring to Fig. 1 ~ Fig. 4, a kind of heavy hydraulic flat bed transport vehicle of the utility model control system loop, it comprises engine revolution speed control system, driving control system travels, lifting platform control system and steering control system, described engine revolution speed control system comprises Das Gaspedal, analog signal collector, the driving engine actuating unit, engine speed sensor and speed controller, described Das Gaspedal output accelerator pedal signal is to analog signal collector, the work order of described analog signal collector output engine is to speed controller, the instruction of described speed controller output speed is to the driving engine actuating unit, thereby the rotating of control throttle motor, realize the adjusting of engine speed, described engine speed sensor output engine tach signal is to speed controller, can show in real time engine speed at operator's compartment, described analog signal collector also connects the external speed command signal; The described driving control system that travels comprises Das Gaspedal, direction gear lever handle, actuating unit, controller, driving pump and drive motor, described Das Gaspedal output accelerator pedal signal is to actuating unit, described direction gear lever handle output forward-reverse signal is to actuating unit, described actuating unit output speed command signal and forward-reverse signal are to controller, described controller output signal is to driving pump, and described driving pump connects drive motor.The Das Gaspedal of operator's compartment adopts automatically controlled pedal, output signal is the aanalogvoltage of 0 ~ 5V, according to the percentage of pedal signal input recently control engine rotating speed and drive the speed of a motor vehicle of walking, after controller receives throttle signal, judge the degree of depth that throttle is stepped on by voltage swing, the degree of push down on the pedal is different, and the actuating unit of controller output control engine rotating speed is not identical with the size of the control signal of driving pump and motor yet.
Described lifting platform control system comprises lifting handle, touchscreen button, PLC controller, podium level sensor, pressure sensor and platform lift valve, described lifting handle or touchscreen button output lifting order are to the PLC controller, described podium level sensor and pressure sensor output signal be to the PLC controller, described PLC controller output signal to the lifting platform valve, turn to, jacking pressure transfer valve and platform 3,4 support transfer valves.The lifting of platform is by lifting handle or the touch-screen switch control of operator's compartment, and these switching value incoming signals enter the PLC controller, are used for distinguishing the mode decision of descending operation, and the lifting of manual single-point is wherein arranged, whole lifting and the lifting of automatic integral.The hand-operated lifting pattern is come part and the integral elevating of implementation platform by controlling different hanging oil cylinder groups; The automatic lifting pattern, by platform is set lower limit, the upper limit, and three height that normally travel are after pressing automatic liter or falling button, the nearest calibration value of platform meeting Automatic-searching, in the process of automatic lifting, can platform be parked in the optional position by the lifting platform halt switch, and the height sensor that is installed in 4 angle points height of feedback platform each point in real time, be used for the levelling of platform, prevent the inclination of platform.4 pressure sensors then are used for calculating the weight of present load under the case of heavy load, thereby and can show that the weight center of gravity determines that its putting position is whether in the best load-bearing district at platform, to reach the function of unbalance loading overload warning at telltale.Wherein turn to, jacking pressure transfer valve is used for flat truck for realizing difference in functionality (turning to or the jacking operation), switches the oil pressure relief of oil pipeline by electromagnetic valve.3,4 support transfer valves are to determine the supporting way of platform by electromagnetic valve, thereby can be suitable for the different requirement of actual shipment.
Described steering control system comprises bearing circle, direction encoder, PLC controller, rotary angle transmitter, convertible valve and steering motor motor, described bearing circle closure coder, described direction encoder output signal is to the PLC controller, described rotary angle transmitter output actual rotational angle signal is to the PLC controller, described PLC controller output diversion order is to steering pump, and described steering pump connects the steering motor motor.Flat truck need to use that center steering, the Eight characters turn to, diagonal, cross running isotype in actual applications, so can both realize independent control to turning to of each wheel.Described bearing circle connects a direction encoder by flexible axle, in the rotating of steering wheel process, the impulse singla of direction encoder is received and counts by controller frequency input port, judge the pulse count that bearing circle turns around and reads according to the model of selected coder, in the PLC controller, will input the angle on target size that counting is converted into guide angle, wheel spacing and distance between shafts according to flat truck actual design vehicle frame, utilize certain function formula to calculate under the front steering pattern, the angle on target of the required rotation of each wheel, the certain diverted current of controller output is used for the control convertible valve, realize left-hand rotation and the right-hand rotation function of wheel, and each wheel center of gyration is equipped with a rotation direction sensor, this sensor can be bus-type coder or potentiometer, its function is the current actual steering angle of feedback wheel, this signal also enters the PLC controller, difference by comparison object angle and actual angle, can be used for judging the unlatching of diverted current output port or closing, the size of different wheel difference can also be used to control different wheel and turns to speed, reached synchronous rotating to purpose, surpass certain warning scope for difference in addition and can ring warning buzzer and banning of turning movement.
Claims (4)
1. heavy hydraulic flat bed transport vehicle control system loop, it is characterized in that: it comprises engine revolution speed control system, driving control system travels, lifting platform control system and steering control system, described engine revolution speed control system comprises Das Gaspedal, analog signal collector, the driving engine actuating unit, engine speed sensor and speed controller, described Das Gaspedal output accelerator pedal signal is to analog signal collector, the work order of described analog signal collector output engine is to speed controller, the instruction of described speed controller output speed is to the driving engine actuating unit, and described engine speed sensor output engine tach signal is to speed controller.
2. a kind of heavy hydraulic flat bed transport vehicle control system according to claim 1 loop, it is characterized in that: the described driving control system that travels comprises Das Gaspedal, direction gear lever handle, actuating unit, controller, driving pump and drive motor, described Das Gaspedal output accelerator pedal signal is to actuating unit, described direction gear lever handle output forward-reverse signal is to actuating unit, described actuating unit output speed command signal and forward-reverse signal are to controller, described controller output signal is to driving pump, and described driving pump connects drive motor.
3. a kind of heavy hydraulic flat bed transport vehicle control system according to claim 1 loop, it is characterized in that: described lifting platform control system comprises lifting handle, touchscreen button, PLC controller, podium level sensor, pressure sensor and platform lift valve, described lifting handle or touchscreen button output lifting order are to the PLC controller, described podium level sensor and pressure sensor output signal are to the PLC controller, and described PLC controller output signal is to the lifting platform valve.
4. a kind of heavy hydraulic flat bed transport vehicle control system according to claim 1 loop, it is characterized in that: described steering control system comprises bearing circle, direction encoder, PLC controller, rotary angle transmitter, convertible valve and steering motor motor, described bearing circle closure coder, described direction encoder output signal is to the PLC controller, described rotary angle transmitter output actual rotational angle signal is to the PLC controller, described PLC controller output diversion order is to steering pump, and described steering pump connects the steering motor motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298263 CN202669573U (en) | 2012-06-25 | 2012-06-25 | Control system circuit of heavy-duty hydraulic plate transportation vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298263 CN202669573U (en) | 2012-06-25 | 2012-06-25 | Control system circuit of heavy-duty hydraulic plate transportation vehicle |
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| CN202669573U true CN202669573U (en) | 2013-01-16 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692906A (en) * | 2013-12-24 | 2014-04-02 | 江苏海鹏特种车辆有限公司 | Vehicle driving system adaptive control system and achievement method thereof |
| CN104612839A (en) * | 2015-01-29 | 2015-05-13 | 恒天九五重工有限公司 | Engine revolution speed control device |
| CN107256022A (en) * | 2017-07-25 | 2017-10-17 | 上海控创信息技术股份有限公司 | Outstanding rail robot inspection control method and system |
| CN108202597A (en) * | 2016-12-19 | 2018-06-26 | 青岛中汽特种汽车有限公司 | A kind of automobile heavy wool door acceleration-controlled system |
| CN113104784A (en) * | 2021-04-12 | 2021-07-13 | 徐工消防安全装备有限公司 | Movable type lifting platform action flexible control system |
| CN113303088A (en) * | 2021-05-24 | 2021-08-27 | 石河子大学 | Speed cooperative control system of picking and running system of cotton picker |
-
2012
- 2012-06-25 CN CN 201220298263 patent/CN202669573U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692906A (en) * | 2013-12-24 | 2014-04-02 | 江苏海鹏特种车辆有限公司 | Vehicle driving system adaptive control system and achievement method thereof |
| CN104612839A (en) * | 2015-01-29 | 2015-05-13 | 恒天九五重工有限公司 | Engine revolution speed control device |
| CN108202597A (en) * | 2016-12-19 | 2018-06-26 | 青岛中汽特种汽车有限公司 | A kind of automobile heavy wool door acceleration-controlled system |
| CN108202597B (en) * | 2016-12-19 | 2023-01-24 | 青岛中汽特种汽车有限公司 | Automobile multi-accelerator acceleration control system |
| CN107256022A (en) * | 2017-07-25 | 2017-10-17 | 上海控创信息技术股份有限公司 | Outstanding rail robot inspection control method and system |
| CN113104784A (en) * | 2021-04-12 | 2021-07-13 | 徐工消防安全装备有限公司 | Movable type lifting platform action flexible control system |
| CN113104784B (en) * | 2021-04-12 | 2022-04-26 | 徐工消防安全装备有限公司 | Movable type lifting platform action flexible control system |
| CN113303088A (en) * | 2021-05-24 | 2021-08-27 | 石河子大学 | Speed cooperative control system of picking and running system of cotton picker |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20150625 |
|
| EXPY | Termination of patent right or utility model |