CN204628118U - A kind of material transferring system for spreading machine with multi-operating mode adaptive pattern - Google Patents
A kind of material transferring system for spreading machine with multi-operating mode adaptive pattern Download PDFInfo
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- CN204628118U CN204628118U CN201520139943.2U CN201520139943U CN204628118U CN 204628118 U CN204628118 U CN 204628118U CN 201520139943 U CN201520139943 U CN 201520139943U CN 204628118 U CN204628118 U CN 204628118U
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Abstract
There is a material transferring system for spreading machine for multi-operating mode adaptive pattern, comprise left and right conveying hydraulic control system and electric control system; First ratio solenoid directional control valve (401) of described left-hand hydraulic control system is connected with described first logic control valve (201), the first pressure-compensated valve (301) respectively, and described first relief valve (101) is connected with described first pressure-compensated valve (301); Second ratio electromagnetism of described dextrad conveying hydraulic control system changes valve (402) and is connected with described second logic control valve (202), the second pressure-compensated valve (302) respectively, and described second relief valve (102) is connected with described second pressure-compensated valve (302); Described electric control system comprises the A1 console, B1 left conveying level sensor, the right conveying level sensor of B2, left-hand conveying solenoid valve, the dextrad conveying solenoid valve that are connected with A2 controller.The utility model control realization is simple, convenient, be easy to operation.
Description
Technical field
The present invention relates to a kind of material transferring system for spreading machine with multi-operating mode adaptive pattern, belong to engineering machinery hydraulic and control applied technical field.
Background technique
At present, build in maintenance construction at road, construction with paving machine technology is further improved and applies widely along with the development of road construction technique.Current domestic paver multifunctional spreading machine, namely will be used for the Stabilized Soil that paves, and is used for the bituminous material that paves again.Along with the high standard requirement of road construction technique, pavement quality control overflow is more and more stricter, and wherein feeder is as the topmost equipment of paver feed, its mode of movement, and the Forming Quality of road pavement plays vital effect.When pave Stabilized Soil material time, because material binding is poor, during uniform and stable conveying, large particle aggregate is out screened, causes Pavement Segregation.At this moment require the frequent reversing impact of conveying, realize the abundant stirring of blended stock, fully mix, reduce aggregate segregation, improve conveying mouth discharging speed and reduce blanking segregation; When pave bituminous material time, control final molding surface evenness, the most effective means of segregation degree be screw material-distributing process is remained a constant speed, stable, and make mixture in hopper remain that high charge level runs, want to realize these, conveying must remain a constant speed, stablize.Existing spreading machine material conveying hydraulic system generally comprises oil hydraulic pump, switch solenoid directional control valve and oil hydraulic motor, relief valve, fuel tank, oil hydraulic pump and provides driving for oil hydraulic motor; oil hydraulic motor drives feeder to realize the conveying in the face that paves; relief valve plays overload protective function; when needs hydraulic control is reversed time; commutated by solenoid directional control valve; thus rotating backward of implement device, solve the phenomenon that gets stuck.The only applicable Stabilized Soil but this hydraulic system paves, when pave pitch time cannot slow down impact, uncontrollablely realize the even, stable of conveying.
The patent No. be 201220512406.4 Chinese invention patent propose a kind of spreading machine material conveying reverse system, the main feature of this device utilizes two two four-way Self-resetting selector valves, realize the reversion of motor, solve conveying and get stuck, and automatically return to conveying rotating forward state after the reversal.
The patent No. be 201020518474.2 Chinese invention patent propose the hydraulic pressure installation that can control spreading machine material conveying clockwise and anticlockwise, the main feature of this device utilizes two three-position four-way electromagnetic directional valve, realizes the reversion of motor, solve conveying get stuck.
The patent No. be 201420010759.3 Chinese invention patent disclose a kind of spreading machine material conveying hydraulic system, this patent adds two position four-way solenoid valves on patent 201020518474.2 basis, adds throttling arrangement.Not only can realize the reversion of motor, solve conveying and get stuck, and pass through the commutation of two position four-way solenoid valves, utilize throttling arrangement to realize pump startup instantaneously to the impact of system.
The solenoid valve that above-mentioned three kinds of inventions adopt is all switch valve, all can only meeting this operating mode of the Stabilized Soil that paves, can not realizing the conveying requirement uniform and stable when paving asphalt material.The first also needs manual operations, is inconvenient to control; The second reversion is commutated by solenoid valves, controls simple, but can not alleviate the impact produced when commutation opened by selector valve; The third adds two position four-way solenoid valves, and electrical control logical relation is complicated, cumbersome.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide in view of this, the object of this invention is to provide and can select different conveying control modes for the difference operating mode that paves, improve construction quality of pavement, alleviate segregation, while promoting surface evenness, solve the destruction that impact when spreading machine material conveying gets stuck, switch valve commutates causes hydraulic system.
For achieving the above object, the present invention is realized by following technological means:
There is a material transferring system for spreading machine for multi-operating mode adaptive pattern, comprise hydraulic control system and electric control system; Described hydraulic control system comprises left conveying hydraulic control system and right conveying hydraulic control system, and two oil-way systems share fuel tank; Described left hydraulic control system comprises the first relief valve (101), the first logic control valve (201), the first pressure-compensated valve (301), described right conveying hydraulic control system comprises the second relief valve (102), the second logic control valve (202), the second pressure-compensated valve (302), and described electric control system comprises the B1 left conveying level sensor, the right conveying level sensor of B2, left-hand conveying solenoid valve, the dextrad conveying solenoid valve that are connected with A2 controller;
It is characterized in that: described left hydraulic control system also comprises the first ratio solenoid directional control valve (401), it is connected with described first logic control valve (201), the first pressure-compensated valve (301) respectively, and described first relief valve (101) is connected with described first pressure-compensated valve (301);
Described right conveying hydraulic control system also comprises the second ratio electromagnetism and changes valve (402), it is connected with described second logic control valve (202), the second pressure-compensated valve (302) respectively, and described second relief valve (102) is connected with described second pressure-compensated valve (302);
Described electric control system also comprises the A1 console be connected with A2 controller, described A1 console is provided with proportional control mode and mode switching control, and described left-hand conveying solenoid valve, dextrad conveying solenoid valve change valve (401) with described first ratio electromagnetism respectively, the second ratio electromagnetism changes valve (402) and is connected.
Further:
Described a kind of material transferring system for spreading machine with multi-operating mode adaptive pattern, is characterized in that: described first ratio electromagnetism changes valve (401), the second ratio electromagnetism changes valve (402) for 3-position 4-way solenoid-operated proportional selector valve.
Described a kind of material transferring system for spreading machine with multi-operating mode adaptive pattern, is characterized in that: described A1 console is provided with proportional control mode button and mode switching control button.
Described a kind of material transferring system for spreading machine with multi-operating mode adaptive pattern, is characterized in that: described left-hand conveying solenoid valve comprises Y1.1 left forward conveying solenoid valve, the left reverse-feeding solenoid valve of Y1.2; Described dextrad conveying solenoid valve comprises Y2.1 right forward conveying solenoid valve, the right reverse-feeding solenoid valve of Y2.2.
Described a kind of material transferring system for spreading machine with multi-operating mode adaptive pattern, is characterized in that: described Y1.1 left forward conveying solenoid valve, the left reverse-feeding solenoid valve of Y1.2 change valve (401) respectively by magnet plug Y1.1a, Y1.2b with the first ratio electromagnetism and be connected; Described Y2.1 right forward conveying solenoid valve, the right reverse-feeding solenoid valve of Y2.2 change valve (402) respectively by magnet plug Y2.1a, Y2.2b with the second ratio electromagnetism and are connected.
Described a kind of material transferring system for spreading machine with multi-operating mode adaptive pattern, it is characterized in that: described first relief valve (101), the first logic control valve (201), the first pressure-compensated valve (301), described second relief valve (102), the second logic control valve (202), the second pressure-compensated valve (302) are cartridge valve, be integrated in hydraulic control system, described first ratio electromagnetism changes valve (401), to change valve (402) be Sandwich plate valve to the second ratio electromagnetism, is assemblied in hydraulic control system.
The invention has the beneficial effects as follows: for controlling spreading machine material conveying hydraulic system, be applicable to multifunctional spreading machine, according to different material spreader, different mode can be selected.Overcome conveying in the past to control to adopt switch electromagnetic valve, electric current cannot proportional control, and solenoid valve is frequently opened, and Impact in Hydraulic System is large, and hydraulic element reduce and are only applicable to this operating mode of Stabilized Soil working life.This control principle adopts electric proportional reversing valve, and Proportional valve is with different current control modes.Switch electromagnetic valve and proportional electromagnetic valve two kinds of functions can be realized.Manipulator can set proportional control mode or mode switching control on console, controller is by the concrete set model in the change of material level that collects conveying sensor and console, control the pwm signal change outputting to electromagnet, realize the control to delivery rate.Realize the abundant stirring of blended stock during the Stabilized Soil that paves, fully mix, reduce aggregate segregation, improve conveying mouth discharging speed and reduce blanking segregation, alleviate the reversing impact of selector valve, improve the working life of hydraulic element; Pave pitch time uniform and stable, reduce segregation, promote pavement quality.The hydraulic control system logical relation that the present invention proposes is clear, and it is convenient that electrical equipment control is simple, oil circuit connects, and system reliability is high, so be a kind of desirable selection mode in spreading machine material conveying application.
The present invention is directed to the difference operating mode that paves and select different conveying control modes, improve construction quality of pavement, alleviate segregation, while promoting surface evenness, solve that spreading machine material conveying gets stuck, switch valve commutation time impact destruction that hydraulic system is caused.Control realization of the present invention is simple, convenient, be easy to operation.
Accompanying drawing explanation
Fig. 1 is hydraulic control system composition schematic diagram, and Fig. 2 is electric control system composition schematic diagram.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
The technical solution used in the present invention is: conveying solenoid valve is connected with proportional electromagnetic valve, for different material spreaders, two kinds of control modes are set, namely pave Stabilized Soil material time, control signal is maximum/minimum two grades, by Proportional valve when switch valve uses, reduce blanking segregation, when commutation opened by switch valve by improving conveying mouth discharging speed, electrical control adopts ramp control signal, alleviates reversing impact; When pave bituminous material time, adoption rate controls, and improves the stationarity of system.Two kinds of mode of operations are switched by switch, and control panel is provided with switch to adapt to different operating mode.When getting stuck, Proportional valve uses when switch valve, pins invert button, and motor reverses, and hand one unclamps, and Proportional valve recovers to rotate forward ratio mode automatically.
As shown in Figure 1, native system overlaps the left and right conveying hydraulic control system of independently HYDRAULIC CONTROL SYSTEM primarily of two.Left conveying hydraulic control system is made up of the first relief valve 101, first logic control valve 201, first pressure-compensated valve 301, first 3-position 4-way ratio solenoid directional control valve 401; Right conveying hydraulic control system is made up of the second relief valve 102, second logic control valve 202, second pressure-compensated valve 302, second 3-position 4-way ratio solenoid directional control valve 402.Relief valve 101,102; Logic control valve 201,202; Pressure-compensated valve 301,302 is cartridge valve, is integrated in hydraulic control system, and 3-position 4-way ratio solenoid directional control valve 401,402 is Sandwich plate valve, is assemblied in hydraulic control system.Hydraulic control system entrance P2, P4 are connected with the outlet of hydraulic power, and P2, P4 are connected with entrance Pa, Pb of pressure-compensated valve 301,302 respectively by internal galleries in hydraulic control system; Entrance Pa, Pb of pressure-compensated valve 301,302 are connected with import P1, P2 of 3-position 4-way ratio solenoid directional control valve 401,402; The outlet A1 of 3-position 4-way ratio solenoid directional control valve 401,402 B3, B1 A3 by hydraulic control system inner passage and hydraulic control system export A2 B5, B7 A4 be communicated with; Hydraulic control system outlet A2 B5, B7 A4 be connected with the oil inlet and outlet of actuator left and right motor; T1, T3 mouth of answering back of 3-position 4-way ratio solenoid directional control valve 401,402 is connected with outlet T2, T4 of pressure-compensated valve 301,302 respectively, and T2, T4 mouth is aggregated into return opening by oil duct in hydraulic control system, and return opening takes back fuel tank; The import Aa of logic control valve 201,202 Ba, Ab Bb respectively with the outlet A1 of 3-position 4-way ratio solenoid directional control valve 401,402 B1, A3 B3 be connected, export with the spring chamber Ca of pressure-compensated valve 301,302 Cb be connected, Ca Cb and relief valve 101,102 import Pc Pd be connected, the outlet Tc of relief valve 101,102 Td be connected with hydraulic control system return opening; M1, M2 are left and right conveying pressure-measuring point, with pressure-compensated valve 301,302 import Pa Pb be connected; The electromagnet plug Y1.1a of 3-position 4-way ratio solenoid directional control valve 401,402 Y1.2b Y2.1a Y2.2b the Y1.1 left forward conveying solenoid valve, Y1.2 left reverse-feeding solenoid valve, Y2.1 right forward conveying solenoid valve, the right reverse-feeding solenoid valve of Y2.2 that are connected with controller A2 port respectively by wire harness connect.
As shown in accompanying drawing 2, native system electrical equipment control comprises A2 controller, B1 left conveying level sensor, B2 right conveying level sensor, A1 console, Y1.1 left forward conveying solenoid valve, Y1.2 left reverse-feeding solenoid valve, Y2.1 right forward conveying solenoid valve, the right reverse-feeding solenoid valve of Y2.2.Conveying sensor B1, B2 input, delivery outlet are connected with controller A2 port; Console A1 a connects the positive level of storage battery, b is connected with ground wire, CAN1_L CAN1_H be connected with controller A2 port; Conveying electromagnetic valve plug Y1.1 Y1.2 Y2.1 Y2.2 one end be connected with the port of controller A2 respectively, one end respectively with the electromagnet Y1.1a in hydraulic control system Y1.2b Y2.1a Y2.2b plug be connected.
Working principle is: A1 console can set proportional control mode or mode switching control, pave Stabilized Soil material time, selector switch control mode on A1 console, as conveying sensor B1, when B2 collects material level minimizing, it is maximum (band slope controls) electric current that controller exports control signal, Y1.1a Y1.2a obtain electric, 3-position 4-way ratio solenoid directional control valve 401, 402 openings open to maximum, P1 and A1, T1 and B1 is communicated with, P3 and B3, T3 and A3 is communicated with, the hydraulic oil of pumping source enter P2 P4 by Pa Pb and 3-position 4-way ratio solenoid directional control valve 401, the P1 of 402 P3 mouth enter A1 B3, A1 B3 is communicated with A2 B5 is respectively accessed left and right conveying motor high pressure hydraulic fluid port by hydraulic control system internal galleries, motor return opening B7 A4 and ratio solenoid directional control valve B1 A3 be communicated with, by T1 T3 be communicated with take back hydraulic fluid port, conveying motor rotates forward, start conveying, in rotating forward process, Aa Bb connect motor high-pressure mouth, Ba Ab connect motor return opening, so logic control valve 201 202 Aa the pressure oil of Bb ball valve core is pushed into low pressure side, thus higher pressure oil is tapped into spring chamber Ca Cb that pressure-compensated valve 301 302 controls spool, when load C a Cb pressure exceed relief valve 101 102 set pressure, relief valve is opened, Pc and Tc connection takes back hydraulic fluid port, system unloaded, protective system element, when conveying sensor B1, B2 collect material level height, it is minimum current that controller exports control signal, Y1.1a Y1.2b Y2.1a Y2.2b all must not electricity, 3-position 4-way ratio solenoid directional control valve 401,402 is in meta, the spring chamber Ca Cb that pressure-compensated valve 301 302 controls spool communicates with oil return, the hydraulic oil of pumping source by P2 P4 and Pa Pb connection, due to ratio solenoid directional control valve 401,402 be in meta P1 P3 oil circuit obstructed, Pa Pb pressure raise, pressure-compensated valve 301 302 to open, Pa and T2 connects, the hydraulic oil oil sump tank of pumping source.Invert button switch is pinned when getting stuck, it is maximum (band slope controls) electric current that controller exports control signal, Y1.2b Y2.2b obtain electric, 3-position 4-way ratio solenoid directional control valve 401, 402 openings open to maximum P1 and B1, T1 and A1 is communicated with, P3 and A3, T3 and B3 is communicated with, the hydraulic oil of pumping source enter P2 P4 by the hydraulic oil of pumping source enter P2 P4 by Pa Pb by 3-position 4-way ratio solenoid directional control valve 401, the P1 of 402 P3 mouth enter B1 A3, B1 A3 by hydraulic control system internal galleries respectively with B7 A4 be communicated with and enter left and right conveying motor and to reverse hydraulic fluid port, motor return opening A2 B5 and ratio solenoid directional control valve A1 B3 be communicated with, by T1 T3 be communicated with take back T mouth, conveying motor reverses, hand release button, Y1.2b Y2.2b vow electric Y1.1a Y1.2a obtain and be electricly back to rotating forward switching mode.
Pave bituminous material time, selection percentage control mode on A1 console; During rotating forward, conveying sensor B1, B2 gather the change of material level, at this moment with switching mode unlike controller output to electromagnet Y1.1a the electric current of Y2.1a in the change of control signal ratio, the displacement that electromagnet promotes spool with control current in proportion.Ball valve core is pushed into low side by the pressure oil of logical valve 201,202 internal pressure upper side, thus higher pressure oil is tapped in the spring chamber Ca Cb of pressure-compensated valve 301,302 control spool.Hydraulic fluid port Pa Pb and spring chamber Ca the pressure reduction of Cb can be adjusted to desirable value.When Pa Pb mouth and spring chamber Ca the pressure reduction of Cb exceed the setting value of valve, pressure-compensated valve 301,302 controls spool and moves, make fluid from Pa Pb mouth flow to T2 T4 mouth take back hydraulic fluid port, until the pressure reduction needed for recovering, thus control to go the flow control of conveying system not by load effect, ensure that conveying is continuous, even steady running, reduce the frequent commutation of selector valve to the impact of system, reduce segregation, promote pavement quality, improve the working life of hydraulic element; During reversion, it is switching value that controller exports control signal, and implementation is with paving Stabilized Soil material.
More than show and describe basic principle of the present invention, major character and advantage.The technician of the industry should understand; the design is not restricted to the described embodiments; the principle that the design is just described described in above-described embodiment and specification; under the prerequisite not departing from the design's spirit and scope; the design also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the design.The claimed scope of the design is defined by appending claims and equivalent thereof.
Claims (6)
1. there is a material transferring system for spreading machine for multi-operating mode adaptive pattern, comprise hydraulic control system and electric control system; Described hydraulic control system comprises left conveying hydraulic control system and right conveying hydraulic control system, and two oil-way systems share fuel tank; Described left hydraulic control system comprises the first relief valve (101), the first logic control valve (201), the first pressure-compensated valve (301), described right conveying hydraulic control system comprises the second relief valve (102), the second logic control valve (202), the second pressure-compensated valve (302), and described electric control system comprises the B1 left conveying level sensor, the right conveying level sensor of B2, left-hand conveying solenoid valve, the dextrad conveying solenoid valve that are connected with A2 controller;
It is characterized in that: described left hydraulic control system also comprises the first ratio solenoid directional control valve (401), it is connected with described first logic control valve (201), the first pressure-compensated valve (301) respectively, and described first relief valve (101) is connected with described first pressure-compensated valve (301);
Described right conveying hydraulic control system also comprises the second ratio electromagnetism and changes valve (402), it is connected with described second logic control valve (202), the second pressure-compensated valve (302) respectively, and described second relief valve (102) is connected with described second pressure-compensated valve (302);
Described electric control system also comprises the A1 console be connected with A2 controller, described A1 console is provided with proportional control mode and mode switching control, and described left-hand conveying solenoid valve, dextrad conveying solenoid valve change valve (401) with described first ratio electromagnetism respectively, the second ratio electromagnetism changes valve (402) and is connected.
2. a kind of material transferring system for spreading machine with multi-operating mode adaptive pattern as claimed in claim 1, is characterized in that: described first ratio electromagnetism changes valve (401), the second ratio electromagnetism changes valve (402) for 3-position 4-way solenoid-operated proportional selector valve.
3. a kind of material transferring system for spreading machine with multi-operating mode adaptive pattern as claimed in claim 1, is characterized in that: described A1 console is provided with proportional control mode button and mode switching control button.
4. a kind of material transferring system for spreading machine with multi-operating mode adaptive pattern as claimed in claim 1, is characterized in that: described left-hand conveying solenoid valve comprises Y1.1 left forward conveying solenoid valve, the left reverse-feeding solenoid valve of Y1.2; Described dextrad conveying solenoid valve comprises Y2.1 right forward conveying solenoid valve, the right reverse-feeding solenoid valve of Y2.2.
5. a kind of material transferring system for spreading machine with multi-operating mode adaptive pattern as claimed in claim 4, is characterized in that: described Y1.1 left forward conveying solenoid valve, the left reverse-feeding solenoid valve of Y1.2 change valve (401) respectively by magnet plug Y1.1a, Y1.2b with the first ratio electromagnetism and be connected; Described Y2.1 right forward conveying solenoid valve, the right reverse-feeding solenoid valve of Y2.2 change valve (402) respectively by magnet plug Y2.1a, Y2.2b with the second ratio electromagnetism and are connected.
6. a kind of material transferring system for spreading machine with multi-operating mode adaptive pattern as claimed in claim 1, it is characterized in that: described first relief valve (101), the first logic control valve (201), the first pressure-compensated valve (301), described second relief valve (102), the second logic control valve (202), the second pressure-compensated valve (302) are cartridge valve, be integrated in hydraulic control system, described first ratio electromagnetism changes valve (401), to change valve (402) be Sandwich plate valve to the second ratio electromagnetism, is assemblied in hydraulic control system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520139943.2U CN204628118U (en) | 2015-03-12 | 2015-03-12 | A kind of material transferring system for spreading machine with multi-operating mode adaptive pattern |
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| CN201520139943.2U CN204628118U (en) | 2015-03-12 | 2015-03-12 | A kind of material transferring system for spreading machine with multi-operating mode adaptive pattern |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776070B (en) * | 2015-03-12 | 2016-08-24 | 徐工集团工程机械股份有限公司道路机械分公司 | A kind of material transferring system for spreading machine with multi-state adaptive pattern |
| CN109082975A (en) * | 2018-09-27 | 2018-12-25 | 徐工集团工程机械股份有限公司 | A kind of spreading machine material conveying gets stuck from processing unit and method |
| CN109101047A (en) * | 2018-09-10 | 2018-12-28 | 陕西中大机械集团有限责任公司 | The multiparty control method and control device of paver hopper material position |
-
2015
- 2015-03-12 CN CN201520139943.2U patent/CN204628118U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776070B (en) * | 2015-03-12 | 2016-08-24 | 徐工集团工程机械股份有限公司道路机械分公司 | A kind of material transferring system for spreading machine with multi-state adaptive pattern |
| CN109101047A (en) * | 2018-09-10 | 2018-12-28 | 陕西中大机械集团有限责任公司 | The multiparty control method and control device of paver hopper material position |
| CN109082975A (en) * | 2018-09-27 | 2018-12-25 | 徐工集团工程机械股份有限公司 | A kind of spreading machine material conveying gets stuck from processing unit and method |
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