CN102776823B - Control method and hydraulic control system of double-steel-wheel vibratory roller - Google Patents
Control method and hydraulic control system of double-steel-wheel vibratory roller Download PDFInfo
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- CN102776823B CN102776823B CN201210278208.0A CN201210278208A CN102776823B CN 102776823 B CN102776823 B CN 102776823B CN 201210278208 A CN201210278208 A CN 201210278208A CN 102776823 B CN102776823 B CN 102776823B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 69
- 239000010959 steel Substances 0.000 claims description 69
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 20
- 238000010276 construction Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000116 mitigating effect Effects 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 241001504664 Crossocheilus latius Species 0.000 description 1
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Abstract
The invention discloses a control method of a double-steel-wheel vibratory roller, the double-steel-wheel vibratory roller comprises a front wheel, a rear wheel, a control valve and a single vibration valve, the single vibration valve comprises a front wheel single vibration valve and/or a rear wheel single vibration valve, and the double-steel-wheel vibratory roller has the following working modes: a non-vibrating mode; a double-vibration mode; and a single vibration mode: the single vibration mode comprises a front wheel single vibration mode and/or a rear wheel single vibration mode; the method comprises the following steps: and controlling the control valve and the single-vibration valve to switch the double-steel-wheel vibratory roller between different working modes, wherein when the double-steel-wheel vibratory roller is switched between any single-vibration mode and other working modes, a preset time interval is formed between the moment of controlling the control valve and the moment of controlling the single-vibration valve. The invention also correspondingly discloses a hydraulic control system of the double-steel-wheel vibratory roller. Through the technical scheme, the impact of the road roller on the system caused by suddenly changing the oil way under the working state can be avoided.
Description
Technical field
The present invention relates to engineering machinery field, particularly, relate to a kind of control method of double-steel wheeled vibratory roller and a kind of hydraulic control system of double-steel wheeled vibratory roller.
Background technology
Double-steel wheeled vibratory roller is the visual plant for road surface, compacting top layer in engineering construction, and the quality of its performance directly affects the quality of flexible pavement.Generally, the front and back wheel of dual-steel wheel road roller is vibrated road pavement simultaneously and is carried out vibratory compaction or simultaneously do not vibrate road pavement and carry out the quiet reality that rolls.For construction section ending place, road surface adapter section and some construction process requirements, also require dual-steel wheel road roller front and back wheel can realize Independent Vibration.By Independent Vibration, can also save the energy.
Existing double-steel wheeled vibratory roller is controlled the vibration of front-wheel and trailing wheel conventionally by hydraulic control system, before this hydraulic control system comprises, shake motor (motor that shakes before this is for driving front-wheel vibration), after shake motor (motor that shakes after this is for driving trailing wheel vibration), oscillating column pump, control valve and two valves that singly shake, before shake motor, after shake motor and oscillating column pump major loop in series, control valve is connected with oscillating column pump, two singly shake valve respectively with front shake motor and after the motor that shakes in parallel.In non-vibration pattern, control valve and the valve that singly shakes be in closed condition, with before making, shake motor and after the motor that shakes all do not work; Shake in pattern two, control valve is in open mode, and the valve that singly shakes is in closed condition, with before making, shake motor and after the motor that shakes all work; In the pattern of singly shaking: control valve and the valve that singly shakes be in open mode, with before making, shake motor or after the motor operations of shaking.
In the control method and hydraulic control system of existing double-steel wheeled vibratory roller, in the time that double-steel wheeled vibratory roller switches between three kinds of patterns, especially pattern and non-vibration pattern or two the shaking while switching between pattern of singly shaking, system can produce larger impact, thereby makes double-steel wheeled vibratory wheel produce bounce; Road roller easily damages, and affects the compaction quality of road roller.Especially in hydraulic control system, conventionally by connect before overflow valve prevents, shake motor and after the shake pressure of motor excessive, impact with mitigation system.But overflow valve can bring the spill losses of hydraulic system, thereby increase energy consumption, and connect overflow valve and also increased the connecting line of hydraulic control system and potential trouble point, thereby not only reduced hydraulic system reliability, improved cost, also increased the difficulty of assembling and maintenance.
Summary of the invention
The object of this invention is to provide a kind of control method of double-steel wheeled vibratory roller of impact that can mitigation system, and a kind of hydraulic control system of double-steel wheeled vibratory roller is provided, this hydraulic control system just can be impacted by mitigation system without overflow valve.
To achieve these goals, on the one hand, the invention provides a kind of control method of double-steel wheeled vibratory roller, described double-steel wheeled vibratory roller comprises front-wheel, trailing wheel, control valve and the valve that singly shakes, this valve that singly shakes comprises front-wheel list valve and/or the trailing wheel list valve that shakes that shakes, and described double-steel wheeled vibratory roller has following mode of operation: non-vibration pattern: described control valve and the valve that singly shakes are in closed condition, so that described front-wheel and trailing wheel are not all vibrated; Two patterns of shaking: described control valve is in open mode, and the described valve that singly shakes is in closed condition, so that described front-wheel and trailing wheel are all vibrated; And the pattern of singly shaking: this pattern of singly shaking comprises front-wheel list pattern and/or the trailing wheel list pattern of shaking of shaking, shakes in pattern at described front-wheel list, and described control valve and the front-wheel list valve that shakes is opened; Shake in pattern at described trailing wheel list, described control valve and the trailing wheel list valve that shakes is opened; The method comprises: control described control valve and the valve that singly shakes, so that described double-steel wheeled vibratory roller is switched between different working modes, when making described double-steel wheeled vibratory roller arbitrary described singly shaking while switching between pattern and other mode of operations, there is predetermined time interval controlling the moment of described control valve and control between moment of the described valve that singly shakes.
Pass through technique scheme, owing to making described double-steel wheeled vibratory roller described singly shake pattern and described non-vibration pattern or two shaking while switching between pattern, there is predetermined time interval, the impact that therefore can avoid road roller to descend in working order flip-flop oil circuit to cause system controlling the moment of described control valve and control between moment of the described valve that singly shakes.
On the other hand, the present invention also provides a kind of hydraulic control system of double-steel wheeled vibratory roller, motor shakes before this hydraulic control system comprises, after the motor that shakes, oscillating column pump, control valve, valve and controller singly shake, the described valve that singly shakes comprises front-wheel list valve and/or the trailing wheel list valve that shakes that shakes, motor shakes before described, after shake motor and oscillating column pump major loop in series, described control valve is connected with the control mouth of described oscillating column pump, described front-wheel list shake valve with described after the motor that shakes in parallel, described trailing wheel list shake valve with described before the motor that shakes in parallel, described double-steel wheeled vibratory roller has following mode of operation: non-vibration pattern: described control valve and the valve that singly shakes are in closed condition, with make to shake before described motor and after the motor that shakes all do not work, two patterns of shaking: described control valve is in open mode, the described valve that singly shakes is in closed condition, with make to shake before described motor and after the motor that shakes all work, and the pattern of singly shaking: this pattern of singly shaking comprises front-wheel list pattern and/or the trailing wheel list pattern of shaking of shaking, shakes in pattern at described front-wheel list, and described control valve and the front-wheel list valve that shakes is opened, with the motor operations of shaking before making, shake in pattern at described trailing wheel list, described control valve and the trailing wheel list valve that shakes is opened, with the motor operations of shaking after making, described controller transmits control signal to described control valve and the valve that singly shakes, so that described double-steel wheeled vibratory roller is switched between different working modes, when making described double-steel wheeled vibratory roller arbitrary described singly shaking while switching between pattern and other mode of operations, between the moment that described controller transmits control signal to described control valve and moment of transmitting control signal to the described valve that singly shakes, there is predetermined time interval.
Pass through technique scheme, due to when making described double-steel wheeled vibratory roller described singly shake pattern and described non-vibration pattern or two shaking while switching between pattern, between the moment that controller transmits control signal to described control valve and moment of transmitting control signal to the described valve that singly shakes, there is predetermined time interval, therefore the impact that can avoid road roller to descend in working order flip-flop oil circuit to cause system, and without connecting overflow valve, thereby can reduce the energy consumption causing because of spill losses, and the connecting line of hydraulic control system and potential trouble point are reduced, thereby not only improve the reliability of hydraulic system, reduce cost, also reduced the difficulty of assembling and maintenance.
Other features and advantages of the present invention are described in detail the detailed description of the invention part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for manual, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is according to the principle schematic of the hydraulic control system of the double-steel wheeled vibratory roller of one embodiment of the present invention;
Fig. 2 is according to the principle schematic of the hydraulic control system of the double-steel wheeled vibratory roller of another embodiment of the invention.
Description of reference numerals
Motor shakes before 1; Motor shakes after 2;
3 oscillating column pumps; 4 control valves;
The 5 front-wheel lists valve that shakes; 6 controllers;
The 7 trailing wheel lists valve that shakes; 8 flushing valves;
9 slippage pumps.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, detailed description of the invention described herein only, for description and interpretation the present invention, is not limited to the present invention.
Double-steel wheeled vibratory roller Independent Vibration hydraulic system comprises front-wheel, trailing wheel, control valve and the valve that singly shakes, this valve that singly shakes comprises front-wheel list valve and/or the trailing wheel list valve that shakes that shakes, and described double-steel wheeled vibratory roller has following mode of operation: non-vibration pattern: described control valve and the valve that singly shakes are in closed condition, so that described front-wheel and trailing wheel are not all vibrated; Two patterns of shaking: described control valve is in open mode, and the described valve that singly shakes is in closed condition, so that described front-wheel and trailing wheel are all vibrated; And the pattern of singly shaking: this pattern of singly shaking comprises front-wheel list pattern and/or the trailing wheel list pattern of shaking of shaking, shakes in pattern at described front-wheel list, and described control valve and the front-wheel list valve that shakes is opened, to make described front-wheel Independent Vibration; Shake in pattern at described trailing wheel list, described control valve and the trailing wheel list valve that shakes is opened; To make described trailing wheel Independent Vibration.
Singly shaking in pattern, if front-wheel and trailing wheel are provided with the valve that singly shakes (be provided with above-mentioned front-wheel list shake valve and the trailing wheel list valve that shakes) simultaneously, the pattern of singly shaking that can realize that front-wheel list shakes and trailing wheel list shakes two kinds.If only front-wheel or trailing wheel are provided with the valve that singly shakes (be only provided with above-mentioned front-wheel list shake valve or the trailing wheel list valve that shakes), correspondingly only can realize front-wheel list pattern or the trailing wheel list pattern of shaking of shaking.
On the one hand, the invention provides a kind of control method of double-steel wheeled vibratory roller, the method comprises: by controlling described control valve and the valve that singly shakes, so that described double-steel wheeled vibratory roller is switched between different working modes.Preferably, when make described double-steel wheeled vibratory roller arbitrary described singly shake while switching between pattern and other mode of operations (for example, arbitrary singly shake pattern and described non-vibration pattern or two shaking while switching between pattern, or shake while switching between pattern at shake pattern and trailing wheel list of front-wheel list), controlling the moment of described control valve and controlling and between moment of the described valve that singly shakes, there is predetermined time interval that (this time interval can be for example 3-10 second, for example 6 seconds, lower same).
Pass through technique scheme, owing to making described double-steel wheeled vibratory roller described singly shake pattern and described non-vibration pattern or two shaking while switching between pattern, there is predetermined time interval, the impact that therefore can avoid road roller to descend in working order flip-flop oil circuit to cause system controlling the moment of described control valve and control between moment of the described valve that singly shakes.
Preferably, when making described double-steel wheeled vibratory roller be switched to described singly shaking when pattern from described non-vibration pattern, first control the described valve that singly shakes in open mode, after delay predetermined time, then control described control valve in open mode.
Preferably, in the time making described double-steel wheeled vibratory roller be switched to described non-vibration pattern from the described pattern of singly shaking, first control described control valve in closed condition, after delay predetermined time, then control the described valve that singly shakes in closed condition.
Preferably, when making described double-steel wheeled vibratory roller described singly shake pattern and described two shaking while switching between pattern, first control described control valve in closed condition, after delay predetermined time, switch again the described valve that singly shakes, again after delay predetermined time, then control described control valve in open mode.
Preferably, the described valve that singly shakes comprises front-wheel list valve and the trailing wheel list valve that shakes that shakes, and the described pattern of singly shaking comprises described front-wheel list pattern and the described trailing wheel list pattern of shaking of shaking; When described double-steel wheeled vibratory roller is shaken while switching between pattern at shake pattern and described trailing wheel list of described front-wheel list, first control described control valve in closed condition, after delay predetermined time, switch again described front-wheel list valve and the trailing wheel list valve that shakes that shakes, again after delay predetermined time, then control described control valve in open mode.
In above various control modes, in the time carrying out pattern switching, first control control valve so that road roller stops vibration (if be before non-vibration pattern, itself stop vibration, therefore without controlling control valve), then change the state of valve of singly shaking, and then control control valve and enter another mode of operation to start, this is equivalent to transient process of road roller, thus the impact that can avoid road roller to descend in working order flip-flop oil circuit to cause system.
On the other hand, as depicted in figs. 1 and 2, the present invention also provides a kind of hydraulic control system of double-steel wheeled vibratory roller, before comprising, this hydraulic system shakes motor 1(for driving front-wheel vibration), after shake motor 2(for driving trailing wheel vibration), oscillating column pump 3, control valve 4, valve and controller 6 singly shake, the described valve that singly shakes comprises front-wheel list valve 5 and/or the trailing wheel list valve 7 that shakes that shakes, motor 1 shakes before described, after shake motor 2 and oscillating column pump 3 major loop in series, described control valve 4 is connected with the control mouth of described oscillating column pump 3, described front-wheel list shake valve 5 with described after the motor 2 that shakes in parallel, described trailing wheel list shake valve 7 with described before the motor 1 that shakes in parallel, described singly shake valve with described before shake motor 1 or described after the motor 2 that shakes in parallel, described double-steel wheeled vibratory roller has following mode of operation: non-vibration pattern: described control valve 4 and the valve that singly shakes are in closed condition, with make to shake before described motor 1 and after the motor 2 that shakes all do not work, two patterns of shaking: described control valve 4 is in open mode, the described valve that singly shakes is in closed condition, with make to shake before described motor 1 and after the motor 2 that shakes all work, and the pattern of singly shaking: this pattern of singly shaking comprises front-wheel list pattern and/or the trailing wheel list pattern of shaking of shaking, shakes in pattern at described front-wheel list, and described control valve 4 and the front-wheel list valve 5 that shakes is opened, and to shake before making, motor 1 is worked, shake in pattern at described trailing wheel list, described control valve 4 and the trailing wheel list valve 7 that shakes is opened, and to shake after making, motor 2 is worked, described controller 6 transmits control signal to described control valve 4 and the valve that singly shakes, so that described double-steel wheeled vibratory roller is switched between different mode.
Preferably, when make described double-steel wheeled vibratory roller arbitrary described singly shake while switching between pattern and other mode of operations (for example, arbitrary singly shake pattern and described non-vibration pattern or two shaking while switching between pattern, or shake while switching between pattern at shake pattern and trailing wheel list of front-wheel list), between the moment that described controller 6 transmits control signal to described control valve 4 and moment of transmitting control signal to the described valve that singly shakes, there is predetermined time interval.
Pass through technique scheme, due to when making described double-steel wheeled vibratory roller described singly shake pattern and described non-vibration pattern or two shaking while switching between pattern, between the moment that controller 6 transmits control signal to described control valve 4 and moment of transmitting control signal to the described valve that singly shakes, there is predetermined time interval, therefore the impact that can avoid road roller to descend in working order flip-flop oil circuit to cause system, and without connecting overflow valve, thereby can reduce the energy consumption causing because of spill losses, and the connecting line of hydraulic control system and potential trouble point are reduced, thereby not only improve the reliability of hydraulic system, reduce cost, also reduced the difficulty of assembling and maintenance.
Preferably, when making described double-steel wheeled vibratory roller be switched to described singly shaking when pattern from described non-vibration pattern, described controller 6 first sends and represents the control signal of opening the valve that singly shakes to the described valve that singly shakes, after delay predetermined time, then send and represent the control signal of opening control valve 4 to described control valve 4.
Preferably, in the time making described double-steel wheeled vibratory roller be switched to described non-vibration pattern from the described pattern of singly shaking, described controller 6 first sends to described control valve 4 control signal that represents closed control valve 4, after delay predetermined time, then send and represent the control signal of closing the valve 5 that singly shakes to the described valve 5 that singly shakes.
Preferably, when making described double-steel wheeled vibratory roller described singly shake pattern and described two shaking while switching between pattern, described controller 6 first sends to described control valve 4 control signal that represents closed control valve 4, after delay predetermined time, send and represent the control signal of switching valve 5 states that singly shake to the described valve 5 that singly shakes again, again after delay predetermined time, then send representative and open the control signal of control valve 4 to described control valve 4.
Preferably, the described valve that singly shakes comprises front-wheel list valve 5 and the trailing wheel list valve 7 that shakes that shakes, and the described pattern of singly shaking comprises described front-wheel list pattern and the described trailing wheel list pattern of shaking of shaking; When described double-steel wheeled vibratory roller is shaken while switching between pattern at shake pattern and described trailing wheel list of described front-wheel list, described controller 6 first sends to described control valve 4 control signal that represents closed control valve 4, after delay predetermined time, send to described front-wheel list valve 5 and the trailing wheel list valve 7 that shakes that shakes the signal that represents switching state again, again after delay predetermined time, then send representative and open the signal of control valve 4 to described control valve 4.
In above various control modes, in the time carrying out pattern switching, first control control valve 4 so that road roller stops vibration (if be before non-vibration pattern, itself stop vibration, therefore without controlling control valve 4), then change the state of the valve that singly shakes (front-wheel list shake valve 5 and/or trailing wheel list shake valve 7), and then control control valve 4 enters another mode of operation to start, this is equivalent to transient process of road roller, thus the impact that can avoid road roller to descend in working order flip-flop oil circuit to cause system.
Described control valve 4 can adopt various suitable valves to realize, and for example, in the embodiment shown in Fig. 1 and Fig. 2, this control valve 4 is three position four-way directional control valve, more specifically, is 3-position 4-way solenoid operated directional valve.Two actuator ports of this 3-position 4-way solenoid operated directional valve are communicated with the control mouth of described oscillating column pump 3, and to control the position of swash plate of oscillating column pump 3, described controller 6 and described 3-position 4-way solenoid operated directional valve two control and mouthful are electrically connected.If control valve 4 must not electricity (in meta), the swash plate of oscillating column pump 3 is in meta, oscillating column pump 3 is exported without pressure oil.If that any side electromagnet of control valve 4 obtains is electric (in left position or right position), oscillating column pump 3 pressure oil output, for the motor 1 that shakes before driving, after the motor 2 that shakes work.Certainly, this control valve 4 can be also other suitable control valves such as two-position four way change valve, also can adopt the reversal valve of other control modes except solenoid operated directional valve, for example, can be pilot operated directional control valve.
The valve that singly shakes can adopt various suitable valve version, and for example, in embodiment as depicted in figs. 1 and 2, the valve that singly shakes (front-wheel list shake valve 5 and/or trailing wheel list shake valve 7) is bi-bit bi-pass reversal valve, more particularly, is bi-bit bi-pass solenoid operated directional valve.Controller 6 is connected with the control mouth of this valve that singly shakes, to send the signal of telecommunication to the valve that singly shakes.If singly shaken valve obtain electric, the oil circuit conducting at its place, otherwise the oil circuit at its place cut-off.Certainly, the valve that singly shakes also can adopt the form of other switch valves.
In the embodiment shown in Fig. 1, the valve that singly shakes comprises front-wheel list valve 5 and the trailing wheel list valve 7 that shakes that shakes, described front-wheel list shake valve 5 with described after the motor 2 that shakes in parallel, described trailing wheel list shake valve 7 with described before the motor 1 that shakes in parallel.
Working method at the embodiment shown in Fig. 1 is: if control valve 4 must not electricity, oscillating column pump 3 swash plates are at meta, and oscillating column pump 3 is without pressure oil output, front shake motor 1 and after the motor 2 that shakes do not work, road roller is in non-vibration pattern, in quiet stone roller duty; If control valve 4 electric, and front-wheel list shake valve 5 and trailing wheel list shake valve 7 all must not electricity, the valve that singly shakes cuts out, pressure oil by front shake motor 1 and after the motor 2 that shakes, road roller, in two patterns of shaking, vibrates duty in front and back wheel simultaneously; If control valve 4 electric, trailing wheel list shake valve 7 electric, and front-wheel list shake valve 5 must not electricity, the trailing wheel list valve 7 that shakes is opened, and oil circuit walks around front vibrating motor 1 and by after vibration motor 2, after vibration motor 2 is worked, road roller is in the trailing wheel list pattern of shaking, in trailing wheel Independent Vibration duty; In like manner, if control valve 4 electric, front-wheel list shake valve 5 electric, and trailing wheel list shake valve 7 must not electricity, road roller is in the front-wheel list pattern of shaking, in front-wheel Independent Vibration duty.
Embodiment as shown in Figure 2, compared with embodiment as shown in Figure 1, is only provided with the trailing wheel list valve 7 that shakes, and the front-wheel list valve 5 that shakes is not set.Therefore in embodiment as shown in Figure 2, the pattern of singly shaking of road roller only comprises the trailing wheel list pattern of shaking, and can not realize the front-wheel list pattern of shaking.Certainly, also can be as required, the front-wheel list valve 5 that shakes is only set, and the trailing wheel list valve 7 that shakes is not set.
In embodiment as depicted in figs. 1 and 2, hydraulic control system also comprises flushing valve 8 and slippage pump 9.Flushing valve 8 with front shake motor 1 and after the motor 2 that shakes in parallel, hydraulic circuit is rinsed, play and change the fluid in loop and have certain thermolysis.Slippage pump 9 is for when needed for system is supplemented fluid and control fluid is provided.Control valve 4, slippage pump 9 can be integrated on oscillating column pump 3.
Taking embodiment as shown in Figure 1 as example, describe the switching mode of road roller between various mode of operations in detail below.
1, be switched to two patterns of shaking from non-vibration pattern: without time delay, to switch with mode identical in prior art, only need to control control valve 4 and obtain electric;
2, be switched to non-vibration pattern from two patterns of shaking: without time delay, to switch with mode identical in prior art, only need to control control valve 4 dead electricity;
3, be switched to the front-wheel list pattern of shaking from non-vibration pattern: controller 6 is first to front-wheel list valve 5 transmitted signals of shaking, make front-wheel list shake valve 5 in conducting state, after delay predetermined time, give again control valve 4 signals, make oscillating column pump 3 start to provide pressure oil, system is started working, and front-wheel is realized Independent Vibration;
4, be switched to the trailing wheel list pattern of shaking from non-vibration pattern: controller 6 is first to trailing wheel list valve 7 transmitted signals of shaking, make trailing wheel list shake valve 7 in conducting state, after delay predetermined time, give again control valve 4 signals, make oscillating column pump 3 start to provide pressure oil, system is started working, and trailing wheel is realized Independent Vibration;
5, be switched to the front-wheel list pattern of shaking from two patterns of shaking: controller 6 is first to control valve 4 transmitted signals, control valve 4 dead electricity are returned meta, and oscillating column pump 3 stops pressure oil output gradually, after treating delay predetermined time, before shake motor 1 and after the motor 2 that shakes quit work, vibrating shaft stops the rotation, then gives front-wheel list valve 5 transmitted signals of shaking, and makes valve 5 conductings of shaking of front-wheel list, after delay predetermined time, after again give control valve 4 transmitted signals, oscillating column pump 3 starts pressure oil output, system enters front-wheel Independent Vibration state;
6, be switched to the trailing wheel list pattern of shaking from two patterns of shaking: controller 6 is first to control valve 4 transmitted signals, control valve 4 dead electricity are returned meta, and oscillating column pump 3 stops pressure oil output gradually, after treating delay predetermined time, before shake motor 1 and after the motor 2 that shakes quit work, vibrating shaft stops the rotation, then gives trailing wheel list valve 7 transmitted signals of shaking, and makes valve 7 conductings of shaking of trailing wheel list, after delay predetermined time, after again give control valve 4 transmitted signals, oscillating column pump 3 starts pressure oil output, system enters trailing wheel Independent Vibration state;
7, be switched to the trailing wheel list pattern of shaking from the front-wheel list pattern of shaking: controller 6 is first to control valve 4 transmitted signals, make control valve 4 dead electricity return meta, oscillating column pump 3 stops pressure oil output gradually, after treating delay predetermined time, before the motor 1 that shakes quit work, vibrating shaft stops the rotation, give again trailing wheel list valve 7 and front-wheel list valve 5 signals that shake that shake, make the valve 5 dead electricity cut-offs of shaking of front-wheel list, the trailing wheel list valve 7 that shakes must conduct, and after delay predetermined time, then gives control valve 4 transmitted signals, make oscillating column pump 3 start pressure oil output, system enters trailing wheel Independent Vibration state;
8, be switched to two patterns of shaking from the front-wheel list pattern of shaking: controller 6 is first to control valve 4 transmitted signals, make control valve 4 dead electricity return meta, oscillating column pump 3 stops pressure oil output gradually, after treating delay predetermined time, before the motor 1 that shakes quit work, vibrating shaft stops the rotation, then gives front-wheel list valve 5 transmitted signals of shaking, and makes the valve 5 dead electricity cut-offs of shaking of front-wheel list, after delay predetermined time, give control valve 4 transmitted signals, oscillating column pump starts pressure oil output again, and system enters front and back wheel vibrational state simultaneously;
9, be switched to the front-wheel list pattern of shaking from the trailing wheel list pattern of shaking: controller 6 is first to control valve 4 transmitted signals, make control valve 4 dead electricity return meta, oscillating column pump 3 stops pressure oil output gradually, after treating delay predetermined time, after the motor 2 that shakes quit work, vibrating shaft stops the rotation, give again trailing wheel list shake valve 7 and and front-wheel list valve 5 signals that shake, make the valve 7 dead electricity cut-offs of shaking of trailing wheel list, the front-wheel list valve 5 that shakes must conduct, and after delay predetermined time, then gives control valve 4 transmitted signals, oscillating column pump 3 starts pressure oil output, and system enters front-wheel Independent Vibration state;
10, be switched to two patterns of shaking from the trailing wheel list pattern of shaking: controller 6 is first to control valve 4 transmitted signals, make control valve 4 dead electricity return meta, oscillating column pump 3 stops pressure oil output gradually, after treating delay predetermined time, after the motor 2 that shakes quit work, vibrating shaft stops the rotation, then gives trailing wheel list valve 7 transmitted signals of shaking, and makes the valve 7 dead electricity cut-offs of shaking of trailing wheel list, after delay predetermined time, give control valve 4 transmitted signals, oscillating column pump 3 starts pressure oil output again, and system enters front and back wheel vibrational state simultaneously;
11, be switched to non-vibration pattern from the front-wheel list pattern of shaking: controller 6 first, to control valve 4 transmitted signals, makes control valve 4 dead electricity return meta, after delay predetermined time, then give front-wheel list valve 5 transmitted signals of shaking, make the valve 5 dead electricity cut-offs of shaking of front-wheel list, system quits work;
12, be switched to non-vibration pattern from the trailing wheel list pattern of shaking: controller 6 first, to control valve 4 transmitted signals, makes control valve 4 dead electricity return meta, after delay predetermined time, then give trailing wheel list valve 7 transmitted signals of shaking, make the valve 7 dead electricity cut-offs of shaking of trailing wheel list, system quits work.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned detailed description of the invention, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present invention, also can be combined, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. the control method of a double-steel wheeled vibratory roller, it is characterized in that, described double-steel wheeled vibratory roller comprises front-wheel, trailing wheel, control valve and the valve that singly shakes, this valve that singly shakes comprises front-wheel list valve and/or the trailing wheel list valve that shakes that shakes, and described double-steel wheeled vibratory roller has following mode of operation: non-vibration pattern: described control valve and the valve that singly shakes are in closed condition, so that described front-wheel and trailing wheel are not all vibrated; Two patterns of shaking: described control valve is in open mode, and the described valve that singly shakes is in closed condition, so that described front-wheel and trailing wheel are all vibrated; And the pattern of singly shaking: this pattern of singly shaking comprises front-wheel list pattern and/or the trailing wheel list pattern of shaking of shaking, shakes in pattern at described front-wheel list, and described control valve and the front-wheel list valve that shakes is opened; Shake in pattern at described trailing wheel list, described control valve and the trailing wheel list valve that shakes is opened; The method comprises: control described control valve and the valve that singly shakes, so that described double-steel wheeled vibratory roller is switched between different working modes, when making described double-steel wheeled vibratory roller arbitrary described singly shaking while switching between pattern and other mode of operations, there is predetermined time interval controlling the moment of described control valve and control between moment of the described valve that singly shakes.
2. the control method of double-steel wheeled vibratory roller according to claim 1, it is characterized in that, when making described double-steel wheeled vibratory roller be switched to described singly shaking when pattern from described non-vibration pattern, first control the described valve that singly shakes in open mode, after delay predetermined time, then control described control valve in open mode.
3. the control method of double-steel wheeled vibratory roller according to claim 1, it is characterized in that, in the time making described double-steel wheeled vibratory roller be switched to described non-vibration pattern from the described pattern of singly shaking, first control described control valve in closed condition, after delay predetermined time, then control the described valve that singly shakes in closed condition.
4. the control method of double-steel wheeled vibratory roller according to claim 1, it is characterized in that, when making described double-steel wheeled vibratory roller described singly shake pattern and described two shaking while switching between pattern, first control described control valve in closed condition, after delay predetermined time, switch again the described valve that singly shakes, then after delay predetermined time, then control described control valve in open mode.
5. the control method of double-steel wheeled vibratory roller according to claim 1, is characterized in that, the described valve that singly shakes comprises described front-wheel list valve and the described trailing wheel list valve that shakes that shakes, and the described pattern of singly shaking comprises described front-wheel list pattern and the described trailing wheel list pattern of shaking of shaking; When described double-steel wheeled vibratory roller is shaken while switching between pattern at shake pattern and described trailing wheel list of described front-wheel list, first control described control valve in closed condition, after delay predetermined time, switch again described front-wheel list valve and the trailing wheel list valve that shakes that shakes, again after delay predetermined time, then control described control valve in open mode.
6. a Closed Hydraulic control system for double-steel wheeled vibratory roller, is characterized in that,
Motor (1) shakes before this hydraulic control system comprises, after the motor (2) that shakes, oscillating column pump (3), control valve (4), valve and controller (6) singly shake, the described valve that singly shakes comprises front-wheel list valve (5) and/or the trailing wheel list valve (7) that shakes that shakes, motor (1) shakes before described, after shake motor (2) and oscillating column pump (3) major loop in series, described oscillating column pump (3) is two-way variable displacement pump, described control valve (4) is connected with the control mouth of described oscillating column pump (3), described front-wheel list shake valve (5) with described after the motor (2) that shakes in parallel, described trailing wheel list shake valve (7) with described before the motor (1) that shakes in parallel,
Described double-steel wheeled vibratory roller has following mode of operation: non-vibration pattern: described control valve (4) and the valve that singly shakes be in closed condition, with make to shake before described motor (1) and after the motor (2) that shakes all do not work; Two patterns of shaking: described control valve (4) is in open mode, the described valve that singly shakes is in closed condition, with make to shake before described motor (1) and after the motor (2) that shakes all work; And the pattern of singly shaking: this pattern of singly shaking comprises front-wheel list pattern and/or the trailing wheel list pattern of shaking of shaking, shake in pattern at described front-wheel list, described control valve (4) and the front-wheel list valve (5) that shakes is opened, with motor (1) work of shaking before making; Shake in pattern at described trailing wheel list, described control valve (4) and the trailing wheel list valve (7) that shakes is opened, with motor (2) work of shaking after making;
Described controller (6) transmits control signal to described control valve (4) and the valve that singly shakes, so that described double-steel wheeled vibratory roller is switched between different working modes, when making described double-steel wheeled vibratory roller arbitrary described singly shaking while switching between pattern and other mode of operations, between the moment that described controller (6) transmits control signal to described control valve (4) and moment of transmitting control signal to the described valve that singly shakes, there is predetermined time interval.
7. the Closed Hydraulic control system of double-steel wheeled vibratory roller according to claim 6, it is characterized in that, when making described double-steel wheeled vibratory roller be switched to described singly shaking when pattern from described non-vibration pattern, described controller (6) first sends and represents the control signal of opening the valve that singly shakes to the described valve that singly shakes, after delay predetermined time, then send and represent the control signal of opening control valve (4) to described control valve (4).
8. the Closed Hydraulic control system of double-steel wheeled vibratory roller according to claim 6, it is characterized in that, in the time making described double-steel wheeled vibratory roller be switched to described non-vibration pattern from the described pattern of singly shaking, described controller (6) first sends to described control valve (4) control signal that represents closed control valve (4), after delay predetermined time, then send to the described valve (5) that singly shakes the control signal that the valve that singly shakes (5) are closed in representative.
9. the Closed Hydraulic control system of double-steel wheeled vibratory roller according to claim 6, it is characterized in that, when making described double-steel wheeled vibratory roller described singly shake pattern and described two shaking while switching between pattern, described controller (6) first sends to described control valve (4) control signal that represents closed control valve (4), after delay predetermined time, send and represent the control signal of switching valve (5) state that singly shakes to the described valve (5) that singly shakes again, again after delay predetermined time, send representative to described control valve (4) again and open the control signal of control valve (4).
10. the Closed Hydraulic control system of double-steel wheeled vibratory roller according to claim 6, it is characterized in that, the described valve that singly shakes comprises described front-wheel list valve (5) and the described trailing wheel list valve (7) that shakes that shakes, and the described pattern of singly shaking comprises described front-wheel list pattern and the described trailing wheel list pattern of shaking of shaking; When described double-steel wheeled vibratory roller is shaken while switching between pattern at shake pattern and described trailing wheel list of described front-wheel list, described controller (6) first sends to described control valve (4) control signal that represents closed control valve (4), after delay predetermined time, send to described front-wheel list valve (5) and the trailing wheel list valve (7) that shakes that shakes the signal that represents switching state again, again after delay predetermined time, then send representative to described control valve (4) and open the signal of control valve (4).
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| CN103511553B (en) * | 2013-10-09 | 2016-03-23 | 中联重科股份有限公司 | Beat vibration noise control device, method and system and engineering machinery |
| CN103898828B (en) * | 2014-03-20 | 2016-01-20 | 中联重科股份有限公司 | Road roller control equipment, system and method and road roller |
| CN106812049B (en) * | 2015-12-01 | 2019-07-23 | 中联重科股份有限公司 | vibration control method, system and device of road roller |
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| JP3643193B2 (en) * | 1996-11-20 | 2005-04-27 | コベルコ建機株式会社 | Hydraulic motor control device |
| AU2003216875A1 (en) * | 2002-03-23 | 2003-10-08 | General Electric Company | Hydraulic brake system for a wind energy plant |
| CN101864722B (en) * | 2010-06-21 | 2011-11-30 | 厦工(三明)重型机器有限公司 | Vibratory roller and stable vibration start and vibration stop method adopted by same |
| CN201942989U (en) * | 2010-12-21 | 2011-08-24 | 三一重工股份有限公司 | Open type hydraulic vibration system and dual-steel-wheel vibration road roller with same |
| CN202688829U (en) * | 2012-08-07 | 2013-01-23 | 中联重科股份有限公司 | Hydraulic control system of double-steel-wheel vibratory roller |
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