CN103741575A - Milling machine and control system thereof - Google Patents
Milling machine and control system thereof Download PDFInfo
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- CN103741575A CN103741575A CN201310706712.0A CN201310706712A CN103741575A CN 103741575 A CN103741575 A CN 103741575A CN 201310706712 A CN201310706712 A CN 201310706712A CN 103741575 A CN103741575 A CN 103741575A
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Abstract
The invention provides a control system of a milling machine. The control system is used on the milling machine and comprises a controller and detection devices, wherein the controller is electrically connected with the detection devices; the controller can be used for controlling the running speed of the milling machine; the pavement milling width of the milling machine can be input or selected in the controller; the detection devices comprise a first detection device and a second detection device, wherein the first detection device is used for detecting the milling depth of the milling machine, and the second detection device is used for detecting the running speed of the milling machine; the controller can control the material delivery speed of the milling machine according to the milling material quantity of the milling machine. The control system with the structure can accurately calculate the milling material capacity of the milling machine in real time and can adjust the material delivery speed of the milling machine according to the milling material quantity and enable the delivery speed to be higher when the milling material quantity is larger. On the other side, the invention also provides the milling machine comprising the control system of the milling machine.
Description
Technical field
The present invention relates to milling mechanism field, particularly a kind of milling machine control system and milling machine.
Background technology
Along with economic fast development, the pavement construction machineries such as milling machine have found broad application at present, and whether as from can milling material being reclaimed milling machine is classified, milling machine can be divided into the milling machine of retracting device with not with the milling machine of retracting device.With the milling machine of retracting device in road-surface milling process, milling material by milling after, can be by impelling to conveyer belt, then exported by conveyer belt, deliver in truck or impelling to vacant lot.For the delivery rate of milling machine, at present mainly by manually control in good time, operation is comparatively complicated, wastes larger.
Application number is 200820034330.2 Chinese patent, as shown in Figure 1, disclose a kind of automatic control device for discharge speed of pavement planing mill, included the two-stage belt conveyor that milling and planing drum working chamber 1 connects, driven two hydraulic motors 2 and a variable pump 5 of two-stage belt conveyor.Also be provided with the level sensor 4 of the conveying belt top that is arranged on second belt conveyer, level sensor 4 is connected with charge level controller 3, by level sensor 4 signal controlling variable pumps 5, realized the Self Adaptive Control of milling machine discharge, in control circuit, also comprise a speed governing potentiometer, speed governing potentiometer is realized manually and being controlled through selector switch.
, there is following technical problem in the automatic control device for discharge speed of pavement planing mill of said structure.
First, control unreliable.Because material level accuracy in detection is relatively low, therefore, material level information inaccurate, it is unreliable to cause controlling.
Secondly, level sensor is short 4 application lifes.Because the working environment of level sensor 4 is comparatively severe, therefore, application life is conventionally shorter.
Again, complicated operation.When milling machine is worked under special operation condition, need switching operation modes, and by manual adjustments speed governing potentiometer, therefore, operation is comparatively complicated.
In sum, how to provide a kind of operation for convenience of, can accurately calculate the milling material side amount of milling machine and can automatically control the milling machine control system of delivery rate, and the milling machine that contains this milling machine control system, become those skilled in the art to need the technical problem of solution badly.
Summary of the invention
In view of this, one of the problem to be solved in the present invention be how to provide a kind of operation for convenience of, can accurately calculate the milling material side amount of milling machine and can automatically control the milling machine control system of delivery rate.
Two of the problem to be solved in the present invention is how a kind of milling machine that comprises above-mentioned this milling machine control system is provided.
For one of addressing the above problem, the present invention proposes a kind of milling machine control system, for milling machine, comprise controller and checkout gear, described controller is electrically connected to described checkout gear, described controller can be used for controlling the travel speed of milling machine, the road-surface milling width of input or selection milling machine in described controller, described checkout gear comprises for detection of the first checkout gear of the milling machine milling degree of depth with for detection of the second detection device of milling machine travel speed, and described controller can be controlled according to the milling material amount of milling machine the delivery rate of milling machine.
As the improvement on the one hand of a kind of milling machine control system of the present invention, described the first checkout gear is displacement transducer, and described displacement transducer is for being arranged at the lift cylinder of milling machine.
As the improvement on the one hand of a kind of milling machine control system of the present invention, described the first checkout gear is angular transducer, and described angular transducer is for being arranged at the lifting connecting rod of milling machine graded beam.
As the improvement on the one hand of a kind of milling machine control system of the present invention, described the first checkout gear is approach switch, and described approach switch is used for being arranged at described milling machine, and the quantity of described approach switch is a plurality of.
As the improvement on the one hand of a kind of milling machine control system of the present invention, described second detection device is velocity sensor, and described velocity sensor is for being arranged at the running motor of milling machine.
As the improvement on the one hand of a kind of milling machine control system of the present invention, the milling width of milling machine can pre-enter and be stored in described controller, during operation, can or select different milling widths according to the input of road surface situation.
As the improvement on the one hand of a kind of milling machine control system of the present invention, described milling machine control system also comprises for controlling the operating mechanism of milling machine feeding unit, by operating described operating mechanism, can accelerate the delivery rate of feeding unit.
As the improvement on the one hand of a kind of milling machine control system of the present invention, described operating mechanism is button, and described button is connected with described controller, and described controller is connected with the drive unit of described feeding unit, operate described button, can change the rotating speed of described drive unit.
The milling machine control system of said structure, for milling machine, comprise controller and checkout gear, controller is electrically connected to checkout gear, controller can be used for controlling the travel speed of milling machine, in controller, can select the road-surface milling width of milling machine, checkout gear comprises for detection of the first checkout gear of the milling machine milling degree of depth with for detection of the second detection device of milling machine travel speed, and controller can be controlled according to the milling material amount of milling machine the delivery rate of milling machine.The milling machine control system of this structure, the first checkout gear can detect the milling degree of depth of milling machine, second detection device detects the travel speed that can detect milling machine, and can from controller, select the milling width of milling machine, and the milling material amount of milling machine equals the milling degree of depth of milling machine, the travel speed of milling machine, the milling width of milling machine and the product of correction factor, therefore, the milling machine of above-mentioned milling machine control system is installed, can be real-time, calculate exactly milling material side's amount of milling machine, and can adjust according to milling material amount the delivery rate of milling machine, when milling material amount is more, delivery rate is faster.
For address the above problem two, the present invention proposes a kind of milling machine, comprise graded beam, promote connecting rod, case and milling and planing drum, described case covers on described milling and planing drum, one end of described lifting connecting rod is connected with described case, and the other end of described lifting connecting rod is connected with graded beam, and described lifting connecting rod can be controlled described grating depth of beam, described milling machine also comprises milling machine control system, and described milling machine control system is control system as above.
As the improvement on the one hand of a kind of milling machine of the present invention, described milling machine also comprises feeding unit and truck, and described feeding unit comprises hydraulic pump, the motor being communicated with described hydraulic pump, and by the conveyer belt of described motor driving, described conveyer belt is arranged at a side of described truck.
The milling machine of said structure, automaticity is high, easy to operate, can automatically control delivery rate according to plane material amount.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.
Fig. 1 is the structural representation of a kind of automatic control device for discharge speed of pavement planing mill in correlation technique;
Fig. 2 is the control principle drawing of a kind of milling machine control system of the present invention;
Fig. 3 is a kind of milling machine control system of the present invention special operation condition control principle drawing;
Fig. 4 is the structural representation of a kind of milling machine of the present invention;
Fig. 5 is part-structure schematic diagram in Fig. 4.
In Fig. 1, the corresponding relation of Reference numeral is:
1 milling and planing drum working chamber 2 hydraulic motor 3 charge level controllers
4 level sensor 5 variable pumps
In Fig. 4 to Fig. 5, the corresponding relation of Reference numeral is:
1 case 2 milling and planing drums 3 promote connecting rod
4 graded beam 5 angular transducers
The specific embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the present invention can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Milling machine control system as shown in Figure 2, for milling machine, comprise controller and checkout gear, controller is electrically connected to checkout gear, checkout gear comprises the first checkout gear and second detection device, the first checkout gear is for detection of the milling degree of depth of milling machine road pavement, second detection device is for detection of milling machine travel speed, controller can be controlled the travel speed of milling machine, and, the milling width of milling machine road pavement can be divided into a plurality of gears, and pre-enter to controller, during construction, can directly select gear just can realize corresponding milling width.For convenience of description, the milling degree of depth represents with h, and milling machine travel speed represents with v, and road-surface milling width represents with b.
In technique scheme, in one embodiment, the first checkout gear is displacement transducer, displacement transducer is specifically for being arranged on the lift cylinder of milling machine, as shown in Figure 4, and when lift cylinder promotes graded beam 4, lift cylinder shrinks, the terrain clearance of graded beam 4 changes thereupon, and the amount of contraction of lift cylinder is the terrain clearance of graded beam 4, can record the displacement of graded beam 4 by this displacement transducer.It should be noted that, in operation process, lift cylinder can't initiatively stretch, and graded beam 4 is in quick condition, under its Action of Gravity Field, is close on ground.When milling and planing drum 2 milling road surface, complete machine declines gradually with respect to ground, and graded beam 4 is constant with respect to the height on ground, suppose that complete machine height fixes, for complete machine, the height of lift cylinder has improved, i.e. the passive contraction of lift cylinder, and its amount of contraction is exactly the milling degree of depth of milling machine.
In another kind of embodiment, the first checkout gear can also be angular transducer 5, angular transducer 5 can be arranged at lifting connecting rod 3 one sides of milling machine, as shown in Figure 4 and shown in Fig. 5, promote one end of connecting rod 3 and the case of milling machine 1 hinged, the other end and the graded beam 4 that promote connecting rod 3 are hinged, when lift cylinder promotes graded beam 4, promote connecting rod 3 around the passive rotation of case 1, the anglec of rotation that promotes connecting rod 3 by measurement can record the hoisting depth of graded beam 4.
In the third embodiment, the first checkout gear can also be approach switch, and approach switch is arranged on milling machine, and approach switch can detect the position of graded beam 4 or promote the position of connecting rod 3, by detecting approach switch signal, equally also can detect the terrain clearance of graded beam 4.It should be noted that, be the accuracy that guarantees to detect, and the quantity of approach switch can be for a plurality of.
In technique scheme, second detection device is velocity sensor, and milling machine comprises running gear, and running gear comprises running motor, and velocity sensor is arranged on running motor, for detection of the travel speed of running motor, i.e. and the travel speed of milling machine.
The road-surface milling width of milling machine, can select according to road surface situation, as the milling material amount of milling machine represents with V, V=h * v * b * k, wherein, k is correction factor, the occurrence of k is relevant with the density of milling material, manual input control device or directly select from controller, i.e. the milling material amount of milling machine, equals the product of the road-surface milling width of the hoisting depth of graded beam 4, the travel speed of milling machine and milling machine.When V is larger, illustrate that milling material amount is larger, now, controller can be accelerated the delivery rate of milling machine, and on the contrary, if V is less, controller can reduce the delivery rate of milling machine.
In technique scheme, for realizing quick conveying, further realize quick material casting and cloth, as shown in Figure 3, milling machine control system also comprises operating mechanism, by operating this operating mechanism, can accelerate the delivery rate of feeding unit.Particularly, operating mechanism can be button, and button is connected with controller, and controller is electrically connected to the drive unit of feeding unit, when drive unit is electric pump, by operating this button, can change the electric current of the electric pump of flowing through, as press this button, the electric current of electric pump of flowing through can strengthen, the rotating speed of electric pump can be accelerated, and now, the delivery rate of feeding unit also can be accelerated along with the quickening of electric pump rotating speed.It should be noted that, drive unit can also adopt hydraulic system, by strengthen hydraulic system CD-ROM drive motor hydraulic oil flow or reduce the discharge capacity of hydraulic motor, to accelerate the rotating speed of CD-ROM drive motor, also can accelerate the delivery rate of feeding unit.
It should be noted that, the mode of operation of button can be varied, as usual by this button, and the rotating speed of electric pump can constantly be accelerated.Button can be also rocker switch, as presses this rocker switch, electric pump rise of rotational speed, and delivery rate is accelerated.It should be noted that, the set-up mode of button can be varied, at this, do not do concrete restriction.
The milling machine control system of said structure, tool has the following advantages:
First, can calculate accurately, reliably milling material side's amount.The milling machine control system of said structure, the first checkout gear can detect the milling degree of depth of milling machine, second detection device detects the travel speed that can detect milling machine, and can from controller, select the milling width of milling machine, and the milling material amount of milling machine equals the road-surface milling degree of depth, the travel speed of milling machine, the product of the milling width of milling machine and correction factor of milling machine, therefore, the milling machine of above-mentioned milling machine control system is installed, can be in real time, calculate accurately milling material side's amount of milling machine.
Secondly, can automatically control the delivery rate of milling machine.The milling machine control system of said structure, control system can be controlled the delivery rate of the feeding unit of milling machine automatically according to milling material side's amount, and when milling material amount is large, delivery rate is faster, on the contrary delivery rate is slower.
Again, can realize quick material casting and cloth.The milling machine control system of said structure, can change the delivery rate of feeding unit, particularly by manipulation operations mechanism, can change by operation push-button the electric pump electric current of feeding unit, thereby the rotating speed that changes electric pump, reaches quick conveying, realizes the object of quick material casting and cloth.
On the other hand, the present invention also proposes a kind of milling machine, specifically as shown in Figures 4 and 5, comprise graded beam 4, promote connecting rod 3, case 1 and milling and planing drum 2, case 1 covers on milling and planing drum 2, one end of hoisting mechanism is connected with case 1, and the other end of hoisting mechanism is connected with graded beam 4, and hoisting mechanism can be controlled the height of graded beam 4; Milling machine also comprises milling machine control system, and particularly, milling machine control system is milling machine control system as above.
Technique scheme, milling machine also comprises feeding unit and truck, feeding unit comprises electric pump, the motor being electrically connected to electric pump, and by the conveyer belt of motor driving, conveyer belt is arranged at a side of described truck, during conveying, material is realized material casting and cloth through this conveyer belt.
The milling machine of said structure, correspondingly, has advantages of the aspects such as automaticity is high, easy to operate.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a milling machine control system, for milling machine, comprise controller and checkout gear, described controller is electrically connected to described checkout gear, it is characterized in that, described controller is for controlling the travel speed of milling machine, in described controller, can input or select the road-surface milling width of milling machine, described checkout gear comprises for detection of the first checkout gear of the milling machine milling degree of depth with for detection of the second detection device of milling machine travel speed, and described controller can be controlled according to the milling material amount of milling machine the delivery rate of milling machine.
2. milling machine control system according to claim 1, is characterized in that, described the first checkout gear is displacement transducer, and described displacement transducer is for being arranged at the lift cylinder of milling machine.
3. milling machine control system according to claim 1, is characterized in that, described the first checkout gear is angular transducer (5), and described angular transducer (5) is for being arranged at the lifting connecting rod (3) of milling machine graded beam (4).
4. milling machine control system according to claim 1, is characterized in that, described the first checkout gear is approach switch, and described approach switch is used for being arranged at described milling machine, and the quantity of described approach switch is a plurality of.
5. according to the milling machine control system described in any one in claim 1 to 4, it is characterized in that, described second detection device is velocity sensor, and described velocity sensor is for being arranged at the running motor of milling machine.
6. milling machine control system according to claim 5, is characterized in that, the milling width of milling machine can pre-enter and be stored in described controller, during operation, can or select different milling widths according to the input of road surface situation.
7. milling machine control system according to claim 6, is characterized in that, described milling machine control system also comprises for controlling the operating mechanism of milling machine feeding unit, by operating described operating mechanism, can accelerate the delivery rate of feeding unit.
8. milling machine control system according to claim 7, is characterized in that, described operating mechanism is button, described button is connected with described controller, described controller is electrically connected to the drive unit of described feeding unit, operates described button, can change the rotating speed of described drive unit.
9. a milling machine, comprise graded beam (4), promote connecting rod (3), case (1) and milling and planing drum (2), described case (1) covers on described milling and planing drum (2), one end of described lifting connecting rod (3) is connected with described case (1), the other end of described lifting connecting rod (3) is connected with graded beam (4), described lifting connecting rod (3) can be controlled the height of described graded beam (4), described milling machine also comprises milling machine control system, it is characterized in that, described milling machine control system is the control system described in any one in claim 1 to 8.
10. milling machine according to claim 9, it is characterized in that, described milling machine also comprises feeding unit and truck, described feeding unit comprises drive unit, the motor being connected with described drive unit, and by the conveyer belt of described motor driving, described conveyer belt is arranged at a side of described truck.
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Cited By (9)
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| CN104164831A (en) * | 2014-08-19 | 2014-11-26 | 柳工无锡路面机械有限公司 | Milling wheel speed regulating system of cold milling machine for pavement |
| WO2016033098A1 (en) * | 2014-08-29 | 2016-03-03 | Caterpillar Paving Products Inc. | Cold planer having independently controlled conveyors |
| CN105544365A (en) * | 2015-12-08 | 2016-05-04 | 湖南三一路面机械有限公司 | Milling machine watering amount control method and milling machine |
| CN106192702A (en) * | 2015-05-27 | 2016-12-07 | 卡特彼勒路面机械公司 | There is the milling machine transmitting load monitoring system |
| CN108570912A (en) * | 2018-05-15 | 2018-09-25 | 徐州徐工筑路机械有限公司 | A kind of milling machine production calculation system and method based on RTK |
| CN109085771A (en) * | 2018-08-24 | 2018-12-25 | 山推工程机械股份有限公司 | A kind of milling machine control system and control method |
| CN110965443A (en) * | 2019-12-30 | 2020-04-07 | 三一汽车制造有限公司 | Milling machine and control method of milling machine |
| CN111676785A (en) * | 2020-07-03 | 2020-09-18 | 三一汽车制造有限公司 | Material conveying control method of milling machine, material conveying control system of milling machine and milling machine |
| CN111979874A (en) * | 2020-07-17 | 2020-11-24 | 江苏集萃道路工程技术与装备研究所有限公司 | Material adding control system and method for in-situ remixer |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104164831A (en) * | 2014-08-19 | 2014-11-26 | 柳工无锡路面机械有限公司 | Milling wheel speed regulating system of cold milling machine for pavement |
| WO2016033098A1 (en) * | 2014-08-29 | 2016-03-03 | Caterpillar Paving Products Inc. | Cold planer having independently controlled conveyors |
| US9464391B2 (en) | 2014-08-29 | 2016-10-11 | Caterpillar Paving Products Inc. | Cold planer having independently controlled conveyors |
| CN106192702A (en) * | 2015-05-27 | 2016-12-07 | 卡特彼勒路面机械公司 | There is the milling machine transmitting load monitoring system |
| CN105544365A (en) * | 2015-12-08 | 2016-05-04 | 湖南三一路面机械有限公司 | Milling machine watering amount control method and milling machine |
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| CN109085771A (en) * | 2018-08-24 | 2018-12-25 | 山推工程机械股份有限公司 | A kind of milling machine control system and control method |
| CN109085771B (en) * | 2018-08-24 | 2021-07-16 | 山推工程机械股份有限公司 | Milling machine control system and control method |
| CN110965443A (en) * | 2019-12-30 | 2020-04-07 | 三一汽车制造有限公司 | Milling machine and control method of milling machine |
| CN111676785A (en) * | 2020-07-03 | 2020-09-18 | 三一汽车制造有限公司 | Material conveying control method of milling machine, material conveying control system of milling machine and milling machine |
| WO2022002256A1 (en) * | 2020-07-03 | 2022-01-06 | 三一汽车制造有限公司 | Milling machine material conveying control method, system and apparatus, and milling machine |
| CN111979874A (en) * | 2020-07-17 | 2020-11-24 | 江苏集萃道路工程技术与装备研究所有限公司 | Material adding control system and method for in-situ remixer |
| CN111979874B (en) * | 2020-07-17 | 2022-01-18 | 江苏集萃道路工程技术与装备研究所有限公司 | Material adding control system and method for in-situ remixer |
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Denomination of invention: Milling machine and control system thereof Effective date of registration: 20181227 Granted publication date: 20160406 Pledgee: Business Department of Hunan Branch of China Construction Bank Co., Ltd. Pledgor: Hunan Sany Road Machinery Co., Ltd. Registration number: 2018430000145 |
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Date of cancellation: 20211217 Granted publication date: 20160406 Pledgee: Business Department of Hunan Branch of China Construction Bank Co.,Ltd. Pledgor: HUNAN SANY ROAD MACHINERY Co.,Ltd. Registration number: 2018430000145 |
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Effective date of registration: 20220317 Address after: 413000 Sany Yiyang Industrial Park, Eastern New District, Yiyang high tech Zone, Yiyang City, Hunan Province Patentee after: Hunan Sany Zhongyi Machinery Co.,Ltd. Address before: 410100 31 industrial city, Changsha economic and Technological Development Zone, Hunan Patentee before: HUNAN SANY ROAD MACHINERY Co.,Ltd. |