CN105858121A - Automatic control method for finished trolley of asphalt mixing plant - Google Patents
Automatic control method for finished trolley of asphalt mixing plant Download PDFInfo
- Publication number
- CN105858121A CN105858121A CN201610307621.3A CN201610307621A CN105858121A CN 105858121 A CN105858121 A CN 105858121A CN 201610307621 A CN201610307621 A CN 201610307621A CN 105858121 A CN105858121 A CN 105858121A
- Authority
- CN
- China
- Prior art keywords
- finished product
- dolly
- finished
- signal
- control system
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
- B65G2203/0283—Position of the load carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
Landscapes
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
Abstract
The invention relates to an automatic control method for a finished trolley of an asphalt mixing plant. The automatic control method comprises the following steps: identifying a travelling position of the trolley through inductors; identifying a weight of the trolley through a pressure sensor; transmitting signals obtained by the inductors, an encoder and the pressure sensor to a PLC control system; when the finished trolley arrives at one inductor, acquiring the corresponding signal by the PLC control system, and then forming a pulse signal and transferring the pulse signal to a servo motor of the finished trolley to form a deceleration curve; slowly decelerating through the servo motor to realize stop of a finished product warehouse, and when the finished trolley arrives at any inductor during the period, re-verifying the pulse signal; finally arranging a touch switch on the finished product warehouse, and after the finished trolley touches with the touch switch, stopping the servo motor, that is, realizing accurate stop.
Description
Technical field
The present invention relates to a kind of little vehicle automatic control method of bituminous mixing plant finished product.
Background technology
At present, the Main Function of bituminous mixing plant finished product dolly is to transport material, generally including vehicle frame, the rotating shaft being located on vehicle frame, the wheel being located in rotating shaft, the hopper being located on vehicle frame, be located on vehicle frame the servomotor rotated for drive shaft, material is delivered to finished bin or reject bin by the way of wheel is walked in orbit by it.Owing to finished product dolly has certain speed when walking, and its inertia is the biggest, so stop position is the most not accurate enough when load-carrying.Existing way is typically to arrange contact switch, touch contact switch after being advanced by finished product dolly and realize stopping, but this mode the most also cannot realize accurate position to be stopped, can only be within a range of error, and when the load-carrying of finished product dolly is when being continually changing, this range of error will be exaggerated, for some need accurate stop positions when and inapplicable.
Summary of the invention
Therefore, for above-mentioned problem, the present invention proposes a kind of little vehicle automatic control method of bituminous mixing plant finished product being capable of and precisely stopping, work efficiency is higher.
For achieving the above object, present invention employs techniques below scheme: a kind of little vehicle automatic control method of bituminous mixing plant finished product, comprise the following steps:
The first step, the rotating shaft of finished product dolly arranges encoder, and it is arranged at intervals with a plurality of induction apparatus on the track that finished product dolly is advanced, the hopper of finished product dolly is installed pressure transducer, the speed of travel of dolly is identified by encoder, identified the walking position of dolly by induction apparatus, identified the weight of dolly by pressure transducer, and the signal that induction apparatus, encoder, pressure transducer obtain is transferred to PLC control system；
Second step, when finished product dolly needs to stop in a certain finished bin, by weight and the optimal deceleration distance of speed of travel measuring and calculating dolly of acquired dolly, this optimal deceleration distance is the distance that finished bin arrives between a certain induction apparatus, when finished product dolly arrives this induction apparatus, PLC control system obtains signal, then forms a pulse signal and passes to servomotor one reduction of speed curve of formation of finished product dolly, is implemented in the stopping of this finished bin by the slow reduction of speed of servomotor；
3rd step, when finished product dolly still can be through a plurality of induction apparatuss in down speeding procedure, when arriving arbitrary induction apparatus, the real-time signal that encoder obtains passes to PLC control system, is compared with reduction of speed curve in pulse signal by this signal, thus draws speed difference, if difference be on the occasion of or negative value, then regenerated a pulse signal with the pulse signal before replacing it by PLC control system, if difference is 0, then continue to continue to use existing pulse signal；
4th step, arranges contact switch in finished bin, and owing to the little vehicle speed of finished product now is relatively low, after finished product dolly touching contact switch, PLC control system receives contact switch signal, and signal passes to servomotor, and servomotor stops, and i.e. realizes accurately stopping.
Further, described finished product dolly being provided with brake gear, described brake gear is connected with PLC control system, in step 4, when, after finished product dolly touching contact switch, PLC control system receives contact switch signal, and signal is passed to brake gear, brake gear starts realization brake.
By using preceding solution, the invention has the beneficial effects as follows: the little vehicle automatic control method of this bituminous mixing plant finished product, the speed of travel of dolly is identified by encoder, the walking position of dolly is identified by induction apparatus, the weight of dolly is identified by pressure transducer, then finished product dolly is made to realize slow reduction of speed when advancing by pulse signal by the effect of PLC control system, and can constantly adjust reduction of speed curve in down speeding procedure to realize arriving accurate stopping during finished bin, finally contact switch is set in finished bin, realize stopping by contact, prevent reduction of speed curve from makeing mistakes the instability caused；Further, by arranging brake gear, realize the common effect with servomotor, precisely stop finished product dolly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, the present invention is further described.
With reference to Fig. 1, the present embodiment provides a kind of little vehicle automatic control method of bituminous mixing plant finished product, comprises the following steps:
The first step, the rotating shaft of finished product dolly arranges encoder, and it is arranged at intervals with a plurality of induction apparatus on the track that finished product dolly is advanced, the hopper of finished product dolly is installed pressure transducer, the speed of travel of dolly is identified by encoder, identified the walking position of dolly by induction apparatus, identified the weight of dolly by pressure transducer, and the signal that induction apparatus, encoder, pressure transducer obtain is transferred to PLC control system；
Second step, when finished product dolly needs to stop in a certain finished bin, by weight and the optimal deceleration distance of speed of travel measuring and calculating dolly of acquired dolly, this optimal deceleration distance is the distance that finished bin arrives between a certain induction apparatus, when finished product dolly arrives this induction apparatus, PLC control system obtains signal, then forms a pulse signal and passes to servomotor one reduction of speed curve of formation of finished product dolly, is implemented in the stopping of this finished bin by the slow reduction of speed of servomotor；
3rd step, when finished product dolly still can be through a plurality of induction apparatuss in down speeding procedure, when arriving arbitrary induction apparatus, the real-time signal that encoder obtains passes to PLC control system, is compared with reduction of speed curve in pulse signal by this signal, thus draws speed difference, if difference be on the occasion of or negative value, then regenerated a pulse signal with the pulse signal before replacing it by PLC control system, if difference is 0, then continue to continue to use existing pulse signal；
4th step, finished bin arranges contact switch, owing to the little vehicle speed of finished product now is relatively low, after finished product dolly touching contact switch, PLC control system receives contact switch signal, and signal is passed to servomotor, servomotor stops, i.e. realizing accurately stopping, described finished product dolly is provided with brake gear, described brake gear is connected with PLC control system, when after finished product dolly touching contact switch, PLC control system receives contact switch signal, and signal passes to brake gear, and brake gear starts realization brake.
In Fig. 1,1 be finished bin, 2 be the track of walking, 3 be induction apparatus, 4 for finished product dolly.Encoder, pressure inductor are known device, and not shown in figure, at this, also it will not go into details.
The little vehicle automatic control method of this bituminous mixing plant finished product, the speed of travel of dolly is identified by encoder, the walking position of dolly is identified by induction apparatus, the weight of dolly is identified by pressure transducer, then finished product dolly is made to realize slow reduction of speed when advancing by pulse signal by the effect of PLC control system, and can constantly adjust reduction of speed curve in down speeding procedure to realize arriving accurate stopping during finished bin, finally contact switch is set in finished bin, realize stopping by contact, prevent reduction of speed curve from makeing mistakes the instability caused；Further, by arranging brake gear, realize the common effect with servomotor, precisely stop finished product dolly.
Although specifically showing in conjunction with preferred embodiment and describing the present invention; but those skilled in the art should be understood that; in the spirit and scope of the present invention limited without departing from appended claims; the present invention can be made a variety of changes in the form and details, be protection scope of the present invention.
Claims (2)
1. the little vehicle automatic control method of bituminous mixing plant finished product, it is characterised in that comprise the following steps:
The first step, the rotating shaft of finished product dolly arranges encoder, and it is arranged at intervals with a plurality of induction apparatus on the track that finished product dolly is advanced, the hopper of finished product dolly is installed pressure transducer, the speed of travel of dolly is identified by encoder, identified the walking position of dolly by induction apparatus, identified the weight of dolly by pressure transducer, and the signal that induction apparatus, encoder, pressure transducer obtain is transferred to PLC control system；
Second step, when finished product dolly needs to stop in a certain finished bin, by weight and the optimal deceleration distance of speed of travel measuring and calculating dolly of acquired dolly, this optimal deceleration distance is the distance that finished bin arrives between a certain induction apparatus, when finished product dolly arrives this induction apparatus, PLC control system obtains signal, then forms a pulse signal and passes to servomotor one reduction of speed curve of formation of finished product dolly, is implemented in the stopping of this finished bin by the slow reduction of speed of servomotor；
3rd step, when finished product dolly still can be through a plurality of induction apparatuss in down speeding procedure, when arriving arbitrary induction apparatus, the real-time signal that encoder obtains passes to PLC control system, is compared with reduction of speed curve in pulse signal by this signal, thus draws speed difference, if difference be on the occasion of or negative value, then regenerated a pulse signal with the pulse signal before replacing it by PLC control system, if difference is 0, then continue to continue to use existing pulse signal；
4th step, arranges contact switch in finished bin, and owing to the little vehicle speed of finished product now is relatively low, after finished product dolly touching contact switch, PLC control system receives contact switch signal, and signal passes to servomotor, and servomotor stops, and i.e. realizes accurately stopping.
A kind of little vehicle automatic control method of bituminous mixing plant finished product the most according to claim 1, it is characterized in that: on described finished product dolly, be provided with brake gear, described brake gear is connected with PLC control system, in step 4, when after finished product dolly touching contact switch, PLC control system receives contact switch signal, and signal passes to brake gear, and brake gear starts realization brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610307621.3A CN105858121B (en) | 2016-05-11 | 2016-05-11 | A kind of small vehicle automatic control method of bituminous mixing plant finished product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610307621.3A CN105858121B (en) | 2016-05-11 | 2016-05-11 | A kind of small vehicle automatic control method of bituminous mixing plant finished product |
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| CN105858121A true CN105858121A (en) | 2016-08-17 |
| CN105858121B CN105858121B (en) | 2018-03-02 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516529A (en) * | 2016-12-15 | 2017-03-22 | 合肥捷曼信息科技有限公司 | Rail guided vehicle control method based on pressure sensor |
| CN106527447A (en) * | 2016-12-15 | 2017-03-22 | 合肥捷曼信息科技有限公司 | Rail guide vehicle control method based on laser sensor |
| CN109501752A (en) * | 2017-11-08 | 2019-03-22 | 蔚来汽车有限公司 | One kind changing electric transport device and its position control method |
| CN110589387A (en) * | 2019-08-01 | 2019-12-20 | 郴州远大住宅工业有限公司 | Automatic alignment device and method for comprehensive transport vehicle |
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| JPH0374108A (en) * | 1989-08-11 | 1991-03-28 | Mazda Motor Corp | Carrier employing linear motor |
| JPH09204225A (en) * | 1996-01-26 | 1997-08-05 | Canon Inc | Control method for servo motor and driving device using the same |
| CN201092473Y (en) * | 2007-10-26 | 2008-07-30 | 攀枝花新钢钒股份有限公司 | Control device for section steel wire trolley |
| CN101780907A (en) * | 2009-12-31 | 2010-07-21 | 三一重工股份有限公司 | Lifting mechanism stroke control device, lifting machine and corresponding control method |
| CN201722076U (en) * | 2010-07-21 | 2011-01-26 | 无锡大力起重机械有限公司 | Uniform deceleration type crane travel anti-collision safety control system |
| CN201722077U (en) * | 2010-07-21 | 2011-01-26 | 无锡大力起重机械有限公司 | Traveling anti-collision safe control system of snub-type crane |
| CN102323833A (en) * | 2011-06-29 | 2012-01-18 | 苏州新协力机器制造有限公司 | Movable trolley control system |
| CN202257165U (en) * | 2011-10-09 | 2012-05-30 | 武汉钢铁(集团)公司 | Travelling measurement control device for movable stacking equipment |
| CN204124719U (en) * | 2014-09-25 | 2015-01-28 | 广运机电(苏州)有限公司 | The position fixing system of Shuttling trolley |
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2016
- 2016-05-11 CN CN201610307621.3A patent/CN105858121B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0374108A (en) * | 1989-08-11 | 1991-03-28 | Mazda Motor Corp | Carrier employing linear motor |
| JPH09204225A (en) * | 1996-01-26 | 1997-08-05 | Canon Inc | Control method for servo motor and driving device using the same |
| CN201092473Y (en) * | 2007-10-26 | 2008-07-30 | 攀枝花新钢钒股份有限公司 | Control device for section steel wire trolley |
| CN101780907A (en) * | 2009-12-31 | 2010-07-21 | 三一重工股份有限公司 | Lifting mechanism stroke control device, lifting machine and corresponding control method |
| CN201722076U (en) * | 2010-07-21 | 2011-01-26 | 无锡大力起重机械有限公司 | Uniform deceleration type crane travel anti-collision safety control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516529A (en) * | 2016-12-15 | 2017-03-22 | 合肥捷曼信息科技有限公司 | Rail guided vehicle control method based on pressure sensor |
| CN106527447A (en) * | 2016-12-15 | 2017-03-22 | 合肥捷曼信息科技有限公司 | Rail guide vehicle control method based on laser sensor |
| CN109501752A (en) * | 2017-11-08 | 2019-03-22 | 蔚来汽车有限公司 | One kind changing electric transport device and its position control method |
| CN110589387A (en) * | 2019-08-01 | 2019-12-20 | 郴州远大住宅工业有限公司 | Automatic alignment device and method for comprehensive transport vehicle |
| CN110589387B (en) * | 2019-08-01 | 2024-01-02 | 郴州远大住宅工业有限公司 | Automatic alignment method for comprehensive transport vehicle |
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| Publication number | Publication date |
|---|---|
| CN105858121B (en) | 2018-03-02 |
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Address after: 362000 No.1 intelligent equipment Industrial Park, Luojiang District, Heshi Town, Luojiang District, Quanzhou City, Fujian Province Patentee after: Fujian tietuo Machinery Co., Ltd Address before: Shuangyang Tang Xi industrial park of Longyan City, Fujian province Luojiang District 362000 Patentee before: FUJIAN TIETUO MACHINERY Co.,Ltd. |