CN201448154U - Automatic revolution speed control device of construction machinery engine - Google Patents
Automatic revolution speed control device of construction machinery engine Download PDFInfo
- Publication number
- CN201448154U CN201448154U CN2009200632307U CN200920063230U CN201448154U CN 201448154 U CN201448154 U CN 201448154U CN 2009200632307 U CN2009200632307 U CN 2009200632307U CN 200920063230 U CN200920063230 U CN 200920063230U CN 201448154 U CN201448154 U CN 201448154U
- Authority
- CN
- China
- Prior art keywords
- speed
- programmable controller
- plc programmable
- motor
- stepping motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses an automatic revolution speed control device of a construction machinery engine. The automatic revolution speed control device comprises a revolution speed sensor, a PLC programmable controller, speed selector switches, a starting selector switch, a stepping motor controller and a stepping motor, wherein pulse signals detected by the revolution speed sensor are sent to a high-speed counting port of the PLC programmable controller to set up speed, the starting selector switch is connected with input points of the PLC programmable controller, an input end of the stepping motor controller is connected with output points of the PLC programmable controller, an output end of the stepping motor controller is connected with the stepping motor, and the stepping motor is connected with an accelerator of the engine via a mechanical mode of wire connection. The automatic revolution speed control device can set up speed with different gears, accurately controls revolution of the engine, and automatically realizes functions of accelerating or decelerating and returning to idling after being interlocked with other actions.
Description
Technical field
The utility model relates to a kind of engineering machinery engine rotating speed automatic controller.
Background technique
The assistant engine rotational speed regulation is manually-operable in the existing engineering machinery, and the operator manually spurs handle according to the tachometer speed of displaying, by the backguy that pulling links to each other with throttle, finishes thereby control engine throttle opening.The rate signal of tachometer is sent by the speed probe of motor.Its defective is: 1, speed controlling is inaccurate, and is random big.2, improved operator's working strength, may under the high speed operation state, shut down and damage equipment owing to misoperation causes motor.3, can not satisfy the requirement of system automation.
Summary of the invention
For solve existing engineering machinery engine can not automatic speed regulation and rotating speed control inaccurate technical problem, the utility model provides a kind of and realizes that many grades of speed set, realize acceleration and deceleration automatically and return the engineering machinery engine rotating speed automatic controller of idling.
The technological scheme that the utility model solves the problems of the technologies described above is: comprise speed probe, the PLC programmable controller, rate selection switch, the starting selector switch, controllor for step-by-step motor, stepper motor, the pulse signal that speed probe detects send PLC programmable controller high-speed counting mouth, speed is set and the starting selector switch links to each other with PLC programmable controller input point, the input end of controllor for step-by-step motor links to each other with PLC programmable controller output point, its output terminal links to each other with stepper motor, and stepper motor is connected with the throttle of motor by the mechanical connection of backguy.
Technique effect of the present utility model is: the utility model adopts speed closed loop control, PLC programmable controller high-speed counting mouth reads the pulse signal that tachometer sends, compare by computing and setting speed, export different switching signals and give controllor for step-by-step motor, the moving direction and the range ability of controllor for step-by-step motor control step motor, stepper motor is connected by backguy with throttle, drawing of backguy put the Push And Release of realizing throttle by stepper motor, thereby decision engine oil amount size, and then control engine speed, the utility model is controlled by speed closed loop, exactly control rate.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a control flow chart of the present utility model.
Embodiment
Referring to Fig. 1,2, the utility model comprises speed probe, PLC programmable controller, rate selection switch, starting-stop selector switch, controllor for step-by-step motor, stepper motor.PLC high-speed counting mouth reads the umber of pulse from speed probe, calculates the rotating speed of motor, and rate selection switch is imported with switching value, carries out the setting of speed.PLC outputs signal to controllor for step-by-step motor by the comparison of actual velocity and setting speed, the traffic direction of control step motor and stroke, and by the mechanical connection of backguy, and then the switching value of control throttle, reach the purpose of controlling engine speed.Fig. 1 is described as follows:
SR1: speed probe.Measure engine speed, output pulse signal.
BV1: tachometer.Receive the pulse signal that speed probe sends, display speed is amplified to the pulse signal that is complementary with PLC with this pulse signal voltage simultaneously.
SA1: speed is set selector switch.Two grades of self-locking selector switches connect the digital quantity input end of PLC respectively, and PLC sets the corresponding velocity amplitude of this input end as required.As the corresponding engine speed 1700r/min of established standards shelves, add corresponding engine speed 2000r/min of prime time.The engine speed of two grades of rotating speed correspondences can be set arbitrarily in the PLC program, and this selector switch can be set many grades of selector switches as required for simultaneously.
SA2: device starts-stops selector switch.Select start gear, lock catch is selected in motor automatic speed regulation, and motor returns idling mode.When this device cooperated with system, the starting stop switch of system can replace this selector switch to be operated.
The A1:PLC programmable controller.This device adopts Siemens S7-200 programmable controller, and model is 6ES7214-1AD23-OXB0.Its high-speed counting mouth input point I
0.0Link to each other with the speedometer pulse signal, selector switch SA1, SA2 connect the PLC input point, are respectively I
0.1, I
0.2, I
0.3The acceleration/deceleration signal line of controllor for step-by-step motor connects the PLC output point, is respectively Q
0.0, Q
0.1The function of PLC is: the umber of pulse computing that the high-speed counting mouth is read becomes rotary speed; When system starts or stops, this speed and setting speed being compared, according to result of calculation output Q
0.0Or Q
0.1Thereby, the control step electric machine controller.
A2 is the throttle controllor for step-by-step motor.When signal for faster was connected, the control step motor retreated; When reduce-speed sign was connected, the control step motor advanced; When acceleration/deceleration signal was connected simultaneously, the control step motor returned initial point; When acceleration/deceleration signal was all obstructed, stepper motor was failure to actuate.
M1 is a stepper motor.Be flexible coupling by backguy and throttle.Stepper motor retreats, the pulling throttle, and accelerator open degree increases, and motor quickens; Stepper motor advances, the throttle automatic drawing back, and accelerator open degree reduces, engine retard; Stepper motor advances to initial point, and accelerator open degree is zero, and motor becomes idling mode; When not receiving signal, stepper motor is failure to actuate, and accelerator open degree is constant, and engine speed is constant.
Speed is set selector switch and is set (V by the input of PLC multiple spot is carried out many grades of speed
If), each input point is set corresponding speed in the PLC program.Speed probe detection of engine rotating speed output pulse signal amplifies back input PLC high-speed counting mouth through signal amplifier with pulse signal, and PLC is calculated to be actual engine speed (V by the umber of pulse that reads certain period (10 milliseconds)
Real).After selecting starting, PLC compares the setting rotating speed of actual engine speed and the selection of present speed setting selector switch, exports different signals according to result relatively and gives controllor for step-by-step motor.
Concrete working procedure of the present utility model is as follows: assistant engine runs to idling mode after starting automatically, and speed probe sends pulse signal and gives tachometer, and the tachometer display speed amplifies pulse signal to PLC programmable controller simultaneously.PLC calculates instant corresponding actual engine speed V by the high-speed counting mouth with pulse
RealWhen selecting " starting ", the speed V that PLC sets according to rate selection switch
IfWith actual detected speed V
RealCompare: work as V
Real＜V
IfThe time, PLC output increases signal, and controllor for step-by-step motor control motor retreats, and by the backguy that is connected between motor and the throttle accelerator open degree is increased, thereby makes engine speed be increased to setting speed; Otherwise, work as V
Real＞V
IfThe time, PLC output reduces signal, and controllor for step-by-step motor control motor advances, owing to reduce by the backguy pulling force that is connected between motor and the throttle, accelerator open degree reduces automatically, thereby makes engine speed be reduced to setting speed.When selecting " stopping ", PLC exports up-down signal simultaneously, and controllor for step-by-step motor control motor returns initial point, and accelerator open degree is decreased to zero automatically, and motor is got back to idling mode.
Claims (1)
1. engineering machinery engine rotating speed automatic controller, it is characterized in that: comprise speed probe, the PLC programmable controller, rate selection switch, the starting selector switch, controllor for step-by-step motor, stepper motor, the pulse signal that speed probe detects send PLC programmable controller high-speed counting mouth, speed is set and the starting selector switch links to each other with PLC programmable controller input point, the input end of controllor for step-by-step motor links to each other with PLC programmable controller output point, its output terminal links to each other with stepper motor, and stepper motor is connected with the throttle of motor by the mechanical connection of backguy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200632307U CN201448154U (en) | 2009-02-13 | 2009-02-13 | Automatic revolution speed control device of construction machinery engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200632307U CN201448154U (en) | 2009-02-13 | 2009-02-13 | Automatic revolution speed control device of construction machinery engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448154U true CN201448154U (en) | 2010-05-05 |
Family
ID=42552869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200632307U Expired - Lifetime CN201448154U (en) | 2009-02-13 | 2009-02-13 | Automatic revolution speed control device of construction machinery engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448154U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644251A (en) * | 2012-04-28 | 2012-08-22 | 中联重科股份有限公司 | Control method, device and system for scrubbing and sweeping car subsidiary motors |
| CN102705085A (en) * | 2012-06-27 | 2012-10-03 | 潍柴动力股份有限公司 | Accelerator control device and engineering plant |
| CN103542439A (en) * | 2012-07-11 | 2014-01-29 | 博西华电器（江苏）有限公司 | Kitchen ventilator and control method thereof |
| CN103835816A (en) * | 2014-03-27 | 2014-06-04 | 徐工集团工程机械股份有限公司 | Method and system for controlling rotation speed of mechanical fuel injection pump diesel engine |
| CN105864714A (en) * | 2016-04-06 | 2016-08-17 | 重庆和锐动力设备有限公司 | Direct-current low-voltage automatic relaying illuminating device for field construction |
-
2009
- 2009-02-13 CN CN2009200632307U patent/CN201448154U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644251A (en) * | 2012-04-28 | 2012-08-22 | 中联重科股份有限公司 | Control method, device and system for scrubbing and sweeping car subsidiary motors |
| CN102644251B (en) * | 2012-04-28 | 2015-03-18 | 中联重科股份有限公司 | Control method, device and system for scrubbing and sweeping car subsidiary motors |
| CN102705085A (en) * | 2012-06-27 | 2012-10-03 | 潍柴动力股份有限公司 | Accelerator control device and engineering plant |
| CN102705085B (en) * | 2012-06-27 | 2015-11-18 | 潍柴动力股份有限公司 | A kind of accelerator control device and engineering machinery |
| CN103542439A (en) * | 2012-07-11 | 2014-01-29 | 博西华电器（江苏）有限公司 | Kitchen ventilator and control method thereof |
| CN103835816A (en) * | 2014-03-27 | 2014-06-04 | 徐工集团工程机械股份有限公司 | Method and system for controlling rotation speed of mechanical fuel injection pump diesel engine |
| CN103835816B (en) * | 2014-03-27 | 2016-06-15 | 徐工集团工程机械股份有限公司 | The control method of mechanical type injection pump rotary speed of diesel engine and system |
| CN105864714A (en) * | 2016-04-06 | 2016-08-17 | 重庆和锐动力设备有限公司 | Direct-current low-voltage automatic relaying illuminating device for field construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201448154U (en) | Automatic revolution speed control device of construction machinery engine | |
| CN100519851C (en) | Synchronous operation control system of roving frame driving mechanism | |
| CN204791118U (en) | Full automatic counting ware of rod | |
| CN105909854A (en) | Valve control device and control method thereof | |
| CN210620028U (en) | Anti-swing control system for crane heavy object | |
| CN103386967A (en) | Control method for automatic gearbox and power system | |
| CN104295543A (en) | Hybrid power engineering machine composite motion control method | |
| CN205806625U (en) | A kind of valve control device | |
| CN102530730A (en) | Control system of swing mechanism and tower crane | |
| CN2436521Y (en) | Digital controller for spinning frame | |
| CN110285678A (en) | The method for monitoring sintering circular-cooler traveling skidding | |
| CN210766964U (en) | Automatic control device for mechanical accelerator of engineering machinery | |
| CN203295061U (en) | Intelligent braking system for crane | |
| CN210683023U (en) | Double-mechanism synchronous operation lifting control system for tower crane | |
| CN210236894U (en) | Synchronous detection device of crown block double hoisting mechanism under different speeds | |
| CN203720649U (en) | Automatic test system for motor brake | |
| CN109532841B (en) | Automatic selection method for engine power curve of loader | |
| CN101857175A (en) | Control system and control method of limit load of container reach stacker | |
| CN201297376Y (en) | Electrical control circuit of electronic hydraulic transmission box | |
| CN203176217U (en) | Automatic clutch separating and reuniting device based on electric drive | |
| CN102758695B (en) | A kind of automatic process control method and system realizing the Accelerating Traveling of Automobiles | |
| CN2585200Y (en) | Automatic weighing equipment for large structure article | |
| CN202626224U (en) | Charge level detection and control device based on moment detection | |
| CN106814678A (en) | The safety device of turntable overspeed protection is realized in a kind of utilization dynamic braking | |
| CN214359931U (en) | Electronic limiting device for automatically adjusting amplitude limiting of tower crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410013 Zhonglian Science Park, No. 361 South Bank Road, Hunan, Changsha Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. Address before: 410013 Zhonglian Science Park, No. 361 South Bank Road, Hunan, Changsha Patentee before: Chang Sha Zoomlion Heavy Industry Science & Technology Development Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: CHANGSHA ZOOMLION ENVIRONMENTAL + SANITATION MACHI Free format text: FORMER OWNER: ZOOMLION HEAVY INDUSTRY SCIENCE + TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20120627 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120627 Address after: 410013 Changsha high tech Development Zone, Hunan Province, No. 307 South Road, silver basin Patentee after: Environmental & Sanitation Machinery Branch of Changsha Zoomlion Heavy Industry Science & Technology Address before: 410013 Zhonglian Science Park, No. 361 South Bank Road, Hunan, Changsha Patentee before: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 410000 Hunan province Changsha hi tech Development Zone, Lin Yulu No. 288 Patentee after: Changsha ZOOMLION Environmental Industry Co., Ltd. Address before: 410013 Changsha high tech Development Zone, Hunan Province, No. 307 South Road, silver basin Patentee before: Environmental & Sanitation Machinery Branch of Changsha Zoomlion Heavy Industry Science & Technology |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100505 |