CN103485262A - Road roller open type vibration system with automatic frequency adjustment and single and double vibration functions - Google Patents
Road roller open type vibration system with automatic frequency adjustment and single and double vibration functions Download PDFInfo
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- CN103485262A CN103485262A CN201310457148.3A CN201310457148A CN103485262A CN 103485262 A CN103485262 A CN 103485262A CN 201310457148 A CN201310457148 A CN 201310457148A CN 103485262 A CN103485262 A CN 103485262A
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Abstract
The invention relates to a road roller open type vibration system with automatic frequency adjustment and single and double vibration functions. The system is characterized by comprising two parts, namely, a hydraulic loop part and an automatic control part, wherein the hydraulic loop part comprises a gear pump, a first electromagnetic valve, a safety valve, a first motor, a second motor and a second electromagnetic valve 6; and the automatic control part comprises a digital analog converter, a PID (proportion integration differentiation) controller, a first velocity sensor, a second velocity sensor and a comparator. According to the road roller open type vibration system with the automatic frequency adjustment and single and double vibration functions, the rear-wheel vibration frequency can be adjusted in real time according to changes of the front-wheel vibration frequency, so that the influence of a series connection hydraulic system on the operation comfort due to large difference of the front-wheel vibration frequency and the rear-wheel vibration frequency is effectively reduced, and the compactness and the flatness are effectively improved.
Description
Technical field
The present invention relates to have the shake road roller open type vibrational system of function of automatic frequency adjustment and Dan Shuan, be mainly used in baby roller open type vibrational system.
Background technology
Current small-sized double-steel wheel roller vibratory hydraulic system, the valve control open system that generally adopts oscillating column pump, porpoise motor to be composed in series.
Impact due to the volumetric efficiency of forward and backward motor, before and after making, the vibration frequency of motor has difference, the beat (clap and shake) in the synthetic formation cycle of vibration that former and later two vibration sources of complete machine produce, clapping shakes can affect planeness and degree of compaction and the operational comfort on road surface.
Simultaneously, conventional valve control vibrating motor is connected in series, vibration or while failure of oscillation when can only realize front and rear wheel, in road maintenance at present, in compacting operation for new and old road floor bonding surface, when the front and back steel wheel, on the floor of the compacting road of different compactnesss, the steel wheel be positioned on the road floor of compacting will produce very large liftoff beating, will have influence on another just compaction quality on the road surface of wheel, operation comfort is very poor simultaneously.This operating mode just needs forward and backward certain steel wheel can realize vibrating (function of singly shaking) separately, yet the vibrational system of current road roller all can't realize this function.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, and provide a kind of vibration frequency function of governor motor automatically, and can realize the shake road roller open type vibrational system of function of Dan Shuan, it can make to drive, and the vibration frequency of two motors of front and back wheel is poor in a very little scope, changes as much as possible, the impact that before and after reducing as much as possible, the consolidation effect of the difference on the frequency road pavement of motor produces, increase the compliance of the operating mode of road roller simultaneously, improve compaction quality and operational comfort.
The object of the present invention is achieved like this:
The present invention has the shake road roller open type vibrational system of function of automatic frequency adjustment and Dan Shuan, comprises hydraulic part and control section;
Wherein hydraulic part comprises gear pump, the first electromagnetic valve, the first motor, the second motor and electromagnetic valve, be connected to safety valve on described electromagnetic valve, electromagnetic valve obtains when electric, hydraulic oil enters the first motor by electromagnetic valve, fuel-displaced second motor that enters of the first motor, the fuel-displaced of the second motor gets back to fuel tank through the second electromagnetic valve.
Wherein control section comprises digital to analog converter, PID controller, First Speed sensor, second speed sensor and comparator, described First Speed sensor, second speed sensor respectively with after the first motor, the second motor are connected by receiving after digital to analog converter and comparator on the PID controller, the end that described PID controller picks out circuit is contact a, described the second motor is provided with K switch on its input circuit, on K switch, with contact b, described K switch is got on contact a or contact b.
Described the first motor and the second motor are gear motor, on the first motor and the second motor, all are connected with proportioning valve.
Described the second electromagnetic valve is the electromagnetic valve with throttling function.
The present invention has the shake road roller open type vibrational system of function of automatic frequency adjustment and Dan Shuan and has the following advantages:
1, eliminated the porpoise frequency difference that the volumetric efficiency difference of train motor causes in the past, and can carry out the auto-compensation correction, guaranteed that vibration frequency difference is in prescribed limit.
2, increase the independent vibrating function of front and back wheel, both can realize independent vibration, can front and back wheel vibrate again, and frequency has been consistent simultaneously, adapted to the demand of special operation condition.
3, planeness and the operational comfort of pavement compaction have been improved.
4, improve the stationarity that the vibrational system start and stop are shaken, reduced system pressure impact.
The accompanying drawing explanation
Fig. 1 has the shake schematic diagram of road roller open type vibrational system of function of automatic frequency adjustment and Dan Shuan.
In figure: gear pump 1, the first electromagnetic valve 2, safety valve 3, the first motor 4, the second motor 5, the second electromagnetic valve 6, digital to analog converter 7, PID controller 8, First Speed sensor 9, second speed sensor 10, comparator 11, K switch, contact a, contact b.
The specific embodiment
Referring to Fig. 1, the present invention relates to have the shake road roller open type vibrational system of function of automatic frequency adjustment and Dan Shuan, it comprises hydraulic part and control section.
Wherein hydraulic part comprises gear pump 1, electromagnetic valve 2, the first motor 4, the second motor 5 and electromagnetic valve 6, be connected to safety valve 3 on described the first electromagnetic valve 2, during the first electromagnetic valve 2 dead electricity, the pressure oil of gear pump 1 vibration output arrives fuel tank, system unloaded by the direct oil return of the first electromagnetic valve 2; The first electromagnetic valve 2 when electric, hydraulic oil enters the first motor 4, the first motors 4 by the first electromagnetic valve 2 fuel-displacedly enters the second the fuel-displaced of motor 5, the second motors 5 and gets back to fuel tank through the second electromagnetic valve 6, when stopping vibrating, the second electromagnetic valve 6 has the effect of failure of oscillation damping buffering.
And the first motor 4 and the second motor 5 are gear motor, and the above all is connected with proportioning valve, the second electromagnetic valve 6 is the electromagnetic valve with throttling function.
Wherein control section comprises digital to analog converter 7, PID controller 8, First Speed sensor 9, second speed sensor 10 and comparator 11, described First Speed sensor 9, second speed sensor 10 respectively with after the first motor 4, the second motor 5 are connected by receiving on PID controller 8 after digital to analog converter 7 and comparator 11, the end that described PID controller 8 picks out circuit is contact a, described the second motor 5 is provided with K switch on its input circuit, on K switch, with contact b, described K switch can be got on contact a or contact b.
It is this that to have the shake operating principle of road roller open type vibrational system of function of automatic frequency adjustment and Dan Shuan as follows:
The velocity amplitude of the first motor 4 is measured by First Speed sensor 9, the speed of the second motor 5 is measured by second speed sensor 10, two speed feedback values enter digital-to-analogue converter 7 through sample devices and are converted into data signal and enter comparator 11, the difference drawn by comparator 11 enters into PID controller 8 and carries out procedure treatment, and the signal of being exported by PID controller 8 is exactly the control signal that the second motor 5 needs.
When needs realize that the front and back wheel of road roller is vibrated simultaneously, as long as it is upper that K switch is got to contact a, carry out input signal by the signal input part of the first motor 4 front ends, just can realize that the first motor 4 is consistent with the second motor 5 rotating speeds, thereby realize that front and back wheel vibrates simultaneously, and vibration frequency is consistent.
When needs realize that the front and back wheel of road roller is vibrated separately, only K switch need be got to contact b upper, carry out input signal by the signal input part of the first motor 4 or the second motor 5 front ends, just can realize front-wheel vibration or trailing wheel vibration.
Claims (3)
1. one kind has the shake road roller open type vibrational system of function of automatic frequency adjustment and Dan Shuan, and it is characterized in that: it comprises hydraulic part and control section;
Wherein hydraulic part comprises gear pump (1), the first electromagnetic valve (2), the first motor (4), the second motor (5) and electromagnetic valve (6), be connected to safety valve (3) on described electromagnetic valve (2), electromagnetic valve (2) when electric, hydraulic oil enters the first motor (4) by electromagnetic valve (2), fuel-displaced second motor (5) that enters of the first motor (4), the fuel-displaced of the second motor (5) gets back to fuel tank through the second electromagnetic valve (6)
Wherein control section comprises digital to analog converter (7), PID controller (8), First Speed sensor (9), second speed sensor (10) and comparator (11), described First Speed sensor (9), second speed sensor (10) respectively with the first motor (4), the second motor (5) is connected rear by receiving on PID controller (8) after digital to analog converter (7) and comparator (11), the end that described PID controller (8) picks out circuit is contact (a), described the second motor (5) is provided with switch (K) on its input circuit, switch (K) is upper with contact (b), described K switch is got on contact (a) or contact (b).
2. a kind of shake road roller open type vibrational system of function of automatic frequency adjustment and Dan Shuan that has according to claim 1, it is characterized in that: described the first motor (4) and the second motor (5) are gear motor, on the first motor (4) and the second motor (5), all are connected with proportioning valve.
3. a kind of shake road roller open type vibrational system of function of automatic frequency adjustment and Dan Shuan that has according to claim 1, it is characterized in that: described the second electromagnetic valve (6) is the electromagnetic valve with throttling function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310457148.3A CN103485262B (en) | 2013-09-30 | 2013-09-30 | There is automatic frequency adjustment and Dan Shuan to shake the road roller open type vibrational system of function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310457148.3A CN103485262B (en) | 2013-09-30 | 2013-09-30 | There is automatic frequency adjustment and Dan Shuan to shake the road roller open type vibrational system of function |
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| CN103485262A true CN103485262A (en) | 2014-01-01 |
| CN103485262B CN103485262B (en) | 2015-12-16 |
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| CN201310457148.3A Active CN103485262B (en) | 2013-09-30 | 2013-09-30 | There is automatic frequency adjustment and Dan Shuan to shake the road roller open type vibrational system of function |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835209A (en) * | 2014-03-06 | 2014-06-04 | 中联重科股份有限公司 | Beat vibration attenuation method, device for implementing beat vibration attenuation method, and road roller |
| CN103898828A (en) * | 2014-03-20 | 2014-07-02 | 中联重科股份有限公司 | Road roller control equipment, system and method and road roller |
| CN104594164A (en) * | 2014-12-03 | 2015-05-06 | 柳工无锡路面机械有限公司 | Automatic frequency-adjusting system of vibratory roller |
| CN104847722A (en) * | 2015-04-20 | 2015-08-19 | 徐工集团工程机械股份有限公司道路机械分公司 | Fast vibration absorption double-valve-element vibration valve and road roller comprising the same |
| CN107386069A (en) * | 2017-09-18 | 2017-11-24 | 徐工集团工程机械股份有限公司 | A kind of can singly drive double turns the road roller changed |
| EP3252232B1 (en) | 2016-05-30 | 2019-03-06 | Hamm AG | Soil compactor and method for operating same |
| CN112482140A (en) * | 2020-12-09 | 2021-03-12 | 徐工集团工程机械股份有限公司道路机械分公司 | Control method and system for eliminating beat vibration phenomenon of double-steel-wheel road roller |
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| CN201080591Y (en) * | 2007-08-10 | 2008-07-02 | 青岛科泰重工机械有限公司 | Frequency adjustable road roller open type loop hydraulic vibration system |
| 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 |
| CN203569439U (en) * | 2013-09-30 | 2014-04-30 | 柳工无锡路面机械有限公司 | Open vibration system with functions of automatic frequency modulation and single and double vibration for road roller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4507014A (en) * | 1983-01-04 | 1985-03-26 | Abg-Werke Gmbh | Consolidating plank for a highway finishing machine |
| US5562361A (en) * | 1995-12-08 | 1996-10-08 | Allen Engineering Corporation, Inc. | Triple roller tube concrete finisher |
| CN1222609A (en) * | 1998-12-01 | 1999-07-14 | 陕西中大机电设备有限责任公司 | Hydraulic drive system for towed vibrating road roller |
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| 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 |
| CN203569439U (en) * | 2013-09-30 | 2014-04-30 | 柳工无锡路面机械有限公司 | Open vibration system with functions of automatic frequency modulation and single and double vibration for road roller |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835209A (en) * | 2014-03-06 | 2014-06-04 | 中联重科股份有限公司 | Beat vibration attenuation method, device for implementing beat vibration attenuation method, and road roller |
| CN103835209B (en) * | 2014-03-06 | 2016-04-13 | 中联重科股份有限公司 | The method of shaking, device and the road roller of clapping the method for shaking for realizing decay are clapped in decay |
| CN103898828A (en) * | 2014-03-20 | 2014-07-02 | 中联重科股份有限公司 | Road roller control equipment, system and method and road roller |
| CN104594164A (en) * | 2014-12-03 | 2015-05-06 | 柳工无锡路面机械有限公司 | Automatic frequency-adjusting system of vibratory roller |
| CN104594164B (en) * | 2014-12-03 | 2017-01-04 | 柳工无锡路面机械有限公司 | A kind of automatic frequency adjustment system of vibrated roller |
| CN104847722A (en) * | 2015-04-20 | 2015-08-19 | 徐工集团工程机械股份有限公司道路机械分公司 | Fast vibration absorption double-valve-element vibration valve and road roller comprising the same |
| EP3252232B1 (en) | 2016-05-30 | 2019-03-06 | Hamm AG | Soil compactor and method for operating same |
| CN107386069A (en) * | 2017-09-18 | 2017-11-24 | 徐工集团工程机械股份有限公司 | A kind of can singly drive double turns the road roller changed |
| CN112482140A (en) * | 2020-12-09 | 2021-03-12 | 徐工集团工程机械股份有限公司道路机械分公司 | Control method and system for eliminating beat vibration phenomenon of double-steel-wheel road roller |
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| CN103485262B (en) | 2015-12-16 |
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