CN102146655B - Stepless adjustable automatic control system for amplitude of road roller - Google Patents
Stepless adjustable automatic control system for amplitude of road roller Download PDFInfo
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- CN102146655B CN102146655B CN 201110082252 CN201110082252A CN102146655B CN 102146655 B CN102146655 B CN 102146655B CN 201110082252 CN201110082252 CN 201110082252 CN 201110082252 A CN201110082252 A CN 201110082252A CN 102146655 B CN102146655 B CN 102146655B
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- road roller
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- controller
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Abstract
The invention belongs to the field of amplitude control of road rollers, and particularly relates to a stepless adjustable automatic control system for the amplitude of a road roller. The stepless adjustable automatic control system for the amplitude of the road roller comprises a controller, wherein the controller is electrically connected with a power unit and a control valve; and the control valve is hydraulically connected with a hydraulic adjusting unit for controlling the amplitude of the road roller. The system has the advantages that: the hydraulic adjusting unit is controlled by using the controller, the power unit and the control valve and is further used for controlling the amplitude of the road roller, so that the amplitude of a vibration exciter is effectively adjusted and an ideal compaction effect is achieved.
Description
Technical field
The invention belongs to the amplitude control field of road roller, be specifically related to a kind of stepless adjustable automatic control system of amplitude of road roller.
Background technology
Along with the progress of scientific development, the products such as circular vibration road roller, oscillatory roller, chaos road roller, directional vibration road roller are arranged in road building machinery road roller field.Because the roadbed condition of road construction is different, thereby corresponding different construction technology and the debulking methods of roadbed laminated material need different amplitude of road rollers, and the control system of existing amplitude of road roller is difficult to the effectively amplitude of adjusting vibration exciter.
Summary of the invention
The stepless adjustable automatic control system that the purpose of this invention is to provide a kind of amplitude of road roller, they can be according to the actual conditions of roadbed, and the amplitude of adjusting vibration exciter reaches desirable consolidation effect effectively.
For achieving the above object, the present invention has adopted following technical scheme: a kind of stepless adjustable automatic control system of amplitude of road roller, this automatic control system comprises controller, described controller is electrically connected with power unit and control valve, and control valve is connected with the hydraulic regulation unit liquid of control amplitude of road roller;
Described control valve is servo proportion;
The inside of road roller wheel body is provided with the vibrator housing, described vibrator housing comprises the stationary housing that connects as one with road roller wheel body and the movable housing that is rotatably assorted with the road roller wheel body formation, and the end of movable housing is fixedly installed the gear ring with the coaxial setting of movable housing; Described hydraulic regulation unit comprises the hydraulic gerotor motor that is connected with control valve liquid, and the output of hydraulic gerotor motor is provided with adjusting gear, and described adjusting gear is meshed with gear ring and drives gear ring and rotates;
Gear ring place on the described movable housing end is along the inductive head that has been arranged circumferentially of gear ring, and the side of gear ring is provided with the swash angle position induction installation that matches with inductive head, and described swash angle position induction installation is electrically connected with controller;
Both sides along from the hoop of gear ring to gear ring distribute described inductive head from the top of gear ring, form near the internal induction circle of gear ring with away from the outer induction coil of gear ring, described internal induction circle, outer induction coil and gear ring arrange concentrically with respect to one another, the central angle with respect to gear ring center of described internal induction circle and outer induction coil is 90 °, and the end away from the gear ring top of internal induction circle and outer induction coil is provided with the extreme position inductive head.
Beneficial effect of the present invention is: the present invention controls the hydraulic regulation unit by controller, power unit, control valve, amplitude of road roller is further controlled in the hydraulic regulation unit, thereby the amplitude of adjusting vibration exciter effectively is to reach desirable consolidation effect.
Description of drawings
Fig. 1 is system schematic of the present utility model;
Fig. 2 is the structural representation of swash angle position induction installation;
Fig. 3 is the lateral view of Fig. 2.
The specific embodiment
Shown in Fig. 1～3, a kind of stepless adjustable automatic control system of amplitude of road roller, this automatic control system comprises controller 17, and described controller 17 is electrically connected with power unit 19 and control valve 21, and control valve 21 is connected with the hydraulic regulation unit liquid of control amplitude of road roller.
Preferably, described controller 17 is electrically connected with display 18; Described control valve 21 is servo proportion.
Described power unit 19 comprises motor and the oil pump that is electrically connected with controller 17, the output shaft of motor links to each other with the power shaft of oil pump, the oil inlet pipe of oil pump links to each other with fuel tank 20, the flowline of oil pump is connected with control valve 21 liquid, be provided with strainer on the described oil inlet pipe, be provided with flap valve on the described flowline, also be provided with the eduction valve that leads to fuel tank 20 on the flowline.
As shown in Figure 1, the inside of road roller wheel body 1 is provided with the vibrator housing, described vibrator housing comprises the stationary housing 3 that connects as one with road roller wheel body 1 and the movable housing 6 that is rotatably assorted with road roller wheel body 1 formation, and the end of movable housing 6 is fixedly installed the gear ring 9 with movable housing 6 coaxial settings; Described hydraulic regulation unit comprises the hydraulic gerotor motor 23 that is connected with control valve 21 liquid, and the output of hydraulic gerotor motor 23 is provided with adjusting gear 24, and described adjusting gear 24 is meshed with gear ring 9 and drives gear ring 9 and rotates.
Described hydraulic gerotor motor 23 also is provided with hydraulic pressure self-locking device 22, and hydraulic pressure self-locking device 22 links to each other with hydraulic pressure self-locking oil circuit.
As shown in Figure 1, described hydraulic pressure self-locking oil circuit comprises the slippage pump 13 that links to each other with fuel tank 20, the flowline of slippage pump 13 is connected with direction valve 15 liquid, direction valve 15 is connected with hydraulic pressure self-locking device 22 liquid, and described direction valve 15 is electrically connected with controller 17, hydraulic pressure self-locking device 22 all links to each other with fuel tank 20.
Hydraulic technique scheme in the utility model is to use the servo ratio control technology to realize.Also namely control the mechanical jib lubbing mechanism action of volume in the vibrating wheels with hydraulic gerotor motor 23, the direction of motion and the speed of servo proportion control hydraulic gerotor motor 23, controller 17 is supplied with servo proportion control electric current, automatically controlled direction valve 15 then assurance extracts pressure oil-source from complete machine walking work system, control self-locking and the releasing brake of hydraulic gerotor motor 23 by controller 17.
Electrical Control Technology in the utility model is to adopt PLC control and CAN bussing technique to realize.Can realize comprising that monitoring display, the engine monitoring of manual/auto adjustment vibrating function, construction working parameter and working status parameter, storage and record, function of wireless remote control, the GSM/GPS of running parameter realize remote maintenance, diagnosis and scheduling feature, fault diagnosis functions.
Further, gear ring 9 places on described movable housing 6 ends have been arranged circumferentially inductive head 25 along gear ring 9, the side of gear ring 9 is provided with the swash angle position induction installation that matches with inductive head 25, and described swash angle position induction installation 10 is electrically connected with controller 17.
Both sides along from the hoop of gear ring 9 to gear ring 9 distribute described inductive head 25 from the top of gear ring 9, form near the internal induction circle of gear ring 9 with away from the outer induction coil of gear ring 9, described internal induction circle, outer induction coil and gear ring 9 arrange concentrically with respect to one another, the central angle with respect to gear ring 9 centers of described internal induction circle and outer induction coil is 90 °, and the end away from gear ring 9 tops of internal induction circle and outer induction coil is provided with extreme position inductive head 30A, 30B.
Described swash angle position induction installation arranges 10 tops at gear ring 9, the swash angle position induction installation is comprised of four approach switchs, wherein second and third approach switch 10B, 10C vertically distribute, cooperate with inductive head 25 on being in the internal induction circle near the second approach switch 10C of gear ring, cooperate with inductive head 25 on being in outer induction coil away from the 3rd approach switch 10B of gear ring; The both sides of second and third approach switch 10B, 10C are provided with the 4th approach switch 10D that the extreme position inductive head 30B of the first approach switch 10A of matching with the extreme position inductive head 30A of internal induction circle end respectively and outer induction coil end matches.
Four approach switchs form swash angle position induction installation 10 detects gear ring 9 motions from the inductive head 25 that is installed in gear ring 9 end faces position, controller 17 collects the signal of second and third approach switch 10B, 10C by interface, through controller 17 computings, changing into signal and given signal compares, and also be that control valve 21 carries out FEEDBACK CONTROL with the information of the difference of these two signals to servo proportion, constantly adjust hydraulic gerotor motor 23 to the given angle signal by servo proportion.
As shown in Figure 2, take the top of gear ring 9 as 0 ° of position, then the left side of 0 ° of position is that the right side of 31,0 ° of positions of internal induction circle of forming of several inductive heads 25 be the outer induction coil 32 of several inductive heads 25 compositions; Described internal induction circle 31, outer induction coil 32 and gear ring 9 are concentric setting, and internal induction circle 31 is compared to the more close gear ring 9 of outer induction coil 32; Described internal induction circle 31 is responsible for 0 °～-90 ° functional areas shown in Fig. 2, and outer induction coil 32 is responsible for 0 °～+ 90 ° functional areas shown in Fig. 2; Described internal induction circle is provided with-90 ° of extreme position inductive head 30A away from the end of 0 ° of position, and described outer induction coil is provided with+90 ° of extreme position inductive head 30B away from the end of 0 ° of position.
When gear ring turned to-90 ° of extreme position inductive head 30A also namely the first approach switch 10A matches with-90 ° of extreme positions control sensors, controller 17 control hydraulic gerotor motors 23 stopped action; Same, when gear ring turn to+90 ° of extreme position inductive head 30B are when also namely the 4th approach switch 10D matches with+90 ° of extreme positions control sensors, controller 17 control hydraulic gerotor motors 23 stop to move.
Be described further below in conjunction with Fig. 1～3 pair motion process of the present utility model:
Hydraulic work system process of the present invention is as follows:
As shown in Figure 1, work as road roller working, when the traveling pump 14 that links to each other with motor 16 is in running order, motor 16 is electrically connected with controller 17, the oil-in of slippage pump 13 is from fuel tank 20 oil suctions, the pressure oil of discharging through the low-pressure side mouth of traveling pump 14 to automatically controlled direction valve 15 repairings, when the electromagnetic valve of automatically controlled direction valve 15 gets when electric, make automatically controlled direction valve 15 spools commutation, the oil-out discharge pressure of its automatically controlled direction valve 15 oil enters releasing brake in the subsidiary hydraulic pressure self-locking device 22 of hydraulic gerotor motor 23; Controller 17 is supplied with power unit 19 signals and is got electric, it also is control valve 21 that the motor of startup power unit 19 makes power unit 19 work discharge hydraulic oil enter servo proportion, controller 17 supply with the control electric current of servo proportions and electromagnetic valve dead electricity, make the direction of motion and the speed of servo proportion control hydraulic gerotor motor 23, then hydraulic gerotor motor 23 drives adjusting gear 24, adjusting gear 24 meshes gear ring 9 again, and the movable housing 6 that links to each other with gear ring 9 turns to the required angle position; Controller 17 sends the signal of telecommunication to automatically controlled direction valve 15, when making the electromagnetic valve dead electricity of automatically controlled direction valve 15, automatically controlled direction valve 15 spools commutation, its oil-out is discharged without pressure oil, the hydraulic pressure self-locking device self-locking that hydraulic gerotor motor 23 attaches prevents movable housing 6 to rotate.
The Vibration on Start-up button, make oscillating column pump 12 and vibrating motor 11 work, driving eccentric block 2,8 rotates with eccentric block 4,5 synchronous backwards by synchronous backward system 7, the exciting force component in vertical direction of eccentric block assembly is changed, thereby change amplitude so that road roller can in time be adjusted exciting force according to different roadbed situations, greatly adapted to existing condition of construction.
The course of work of electric-control system of the present invention is as follows:
After the engine start of road roller is stable, manually (set by potentiometer) or automatic (according to the road surface situation) signal of a given demand from the desktop of display 18 according to operating mode, change into by controller 17 processing controls that the control servo proportion also is openings of sizes and the direction of control valve 21 behind the current signal, determine the direction of motion and the speed of hydraulic gerotor motor 23; Four approach switchs form swash angle position induction installation 10 detects gear ring 9 motions from the inductive head 25 that is installed in gear ring 9 end faces position, controller 17 collects the signal of second and third approach switch 10B, 10C by interface, through controller 17 computings, changing into signal and given signal compares, and also be that control valve 21 carries out FEEDBACK CONTROL with the information of the difference of these two signals to servo proportion, constantly adjust hydraulic gerotor motor 23 to the given angle signal by servo proportion.
Claims (6)
1. the stepless adjustable automatic control system of an amplitude of road roller, it is characterized in that: this automatic control system comprises controller (17), described controller (17) is electrically connected with power unit (19) and control valve (21), and control valve (21) is connected with the hydraulic regulation unit liquid of control amplitude of road roller;
Described control valve (21) is servo proportion;
The inside of road roller wheel body (1) is provided with the vibrator housing, described vibrator housing comprises the stationary housing (3) that connects as one with road roller wheel body (1) and the movable housing (6) that is rotatably assorted with road roller wheel body (1) formation, and the end of movable housing (6) is fixedly installed the gear ring (9) with the coaxial setting of movable housing (6); Described hydraulic regulation unit comprises the hydraulic gerotor motor (23) that is connected with control valve (21) liquid, the output of hydraulic gerotor motor (23) is provided with adjusting gear (24), and described adjusting gear (24) is meshed with gear ring (9) and drives gear ring (9) and rotates;
Gear ring (9) on described movable housing (6) end is located to be arranged circumferentially inductive head (25) along gear ring (9), the side of gear ring (9) is provided with the swash angle position induction installation (10) that matches with inductive head (25), and described swash angle position induction installation (10) is electrically connected with controller (17);
Both sides along from the hoop of gear ring (9) to gear ring (9) distribute described inductive head (25) from the top of gear ring (9), form near the internal induction circle of gear ring (9) with away from the outer induction coil of gear ring (9), described internal induction circle, outer induction coil and gear ring (9) arrange concentrically with respect to one another, the central angle with respect to gear ring (9) center of described internal induction circle and outer induction coil is 90 °, and the end away from gear ring (9) top of internal induction circle and outer induction coil is provided with extreme position inductive head (30A, 30B).
2. the stepless adjustable automatic control system of amplitude of road roller according to claim 1, it is characterized in that: described controller (17) is electrically connected with display (18).
3. according to the stepless adjustable automatic control system of amplitude of road roller claimed in claim 1, it is characterized in that: described power unit (19) comprises motor and the oil pump that is electrically connected with controller (17), the output shaft of motor links to each other with the power shaft of oil pump, the oil inlet pipe of oil pump links to each other with fuel tank (20), the flowline of oil pump is connected with control valve (21) liquid, be provided with strainer on the described oil inlet pipe, be provided with flap valve on the described flowline, also be provided with the eduction valve that leads to fuel tank (20) on the flowline.
4. the stepless adjustable automatic control system of amplitude of road roller according to claim 1, it is characterized in that: described hydraulic gerotor motor (23) also is provided with hydraulic pressure self-locking device (22), and hydraulic pressure self-locking device (22) links to each other with hydraulic pressure self-locking oil circuit.
5. the stepless adjustable automatic control system of amplitude of road roller according to claim 4, it is characterized in that: described hydraulic pressure self-locking oil circuit comprises the slippage pump (13) that links to each other with fuel tank (20), the flowline of slippage pump (13) is connected with direction valve (15) liquid, direction valve (15) is connected with hydraulic pressure self-locking device (22) liquid, and described direction valve (15) is electrically connected with controller (17), hydraulic pressure self-locking device (22) all links to each other with fuel tank (20).
6. the stepless adjustable automatic control system of amplitude of road roller according to claim 1, it is characterized in that: described swash angle position induction installation (10) is arranged on the top of gear ring (9), swash angle position induction installation (10) is comprised of four approach switchs, wherein second and third approach switch (10B, 10C) vertically distributes, cooperate with inductive head (25) on being in the internal induction circle near second approach switch (10C) of gear ring, cooperate with inductive head (25) on being in outer induction coil away from the 3rd approach switch (10B) of gear ring; The both sides of second and third approach switch (10B, 10C) are provided with the 4th approach switch (10D) that the extreme position inductive head (30B) of the first approach switch (10A) of matching with the extreme position inductive head (30A) of internal induction circle end respectively and outer induction coil end matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110082252 CN102146655B (en) | 2011-04-01 | 2011-04-01 | Stepless adjustable automatic control system for amplitude of road roller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110082252 CN102146655B (en) | 2011-04-01 | 2011-04-01 | Stepless adjustable automatic control system for amplitude of road roller |
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| CN102146655A CN102146655A (en) | 2011-08-10 |
| CN102146655B true CN102146655B (en) | 2013-01-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201990919U (en) * | 2011-04-01 | 2011-09-28 | 屠卫东 | Stepless adjustable automatic control system of amplitude of road roller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3850568B2 (en) * | 1998-12-07 | 2006-11-29 | カヤバ工業株式会社 | HST vehicle control mechanism |
| CN2878469Y (en) * | 2005-04-07 | 2007-03-14 | 徐州工程机械科技股份有限公司徐工研究院 | Stepless adjustable automatic control system for vibration of intelligent road presser |
| US8020659B2 (en) * | 2007-11-28 | 2011-09-20 | Caterpillar Paving Products Inc. | Hydrostatically driven vehicle and method therefor |
| CN201217772Y (en) * | 2008-06-07 | 2009-04-08 | 屠卫东 | Amplitude-adjustable vibration generator apparatus of pavement roller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201990919U (en) * | 2011-04-01 | 2011-09-28 | 屠卫东 | Stepless adjustable automatic control system of amplitude of road roller |
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| C14 | Grant of patent or utility model | ||
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Owner name: HEFEI YONG AN GREENBELT ENGINEERING MACHINERY CO., Free format text: FORMER OWNER: TU WEIDONG Effective date: 20150116 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325604 WENZHOU, ZHEJIANG PROVINCE TO: 230601 HEFEI, ANHUI PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150116 Address after: 666 No. 230601 Anhui Lu Qing Luan City Hefei province Fangxing economic and Technological Development Zone, Road No. 29 Patentee after: Hefei Yong'an Greenbelt Engineering Machinery Co., Ltd. Address before: 325604 Lingyun Road 308, Liushi Town, Zhejiang, Yueqing Patentee before: Tu Weidong |