CN108824134A - A kind of vibration frequency control system and method for vibrated roller - Google Patents
A kind of vibration frequency control system and method for vibrated roller Download PDFInfo
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- CN108824134A CN108824134A CN201810695826.2A CN201810695826A CN108824134A CN 108824134 A CN108824134 A CN 108824134A CN 201810695826 A CN201810695826 A CN 201810695826A CN 108824134 A CN108824134 A CN 108824134A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/231—Rollers therefor; Such rollers usable also for compacting soil with both elastically-deformable and rigid rolling elements, e.g. pneumatic-tyred compactor with selectively operative or inoperative steel-faced roll
- E01C19/233—Rollers therefor; Such rollers usable also for compacting soil with both elastically-deformable and rigid rolling elements, e.g. pneumatic-tyred compactor with selectively operative or inoperative steel-faced roll the rigid rolling elements being vibrated or subjected to impacts
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- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention belongs to vibrated roller technical fields, disclose a kind of vibration frequency control system and method for vibrated roller, vibrated roller includes engine, oscillating column pump, vibrating motor, the pressure oil that engine driving oscillating column pump generates is output to vibrating motor, to drive vibrating motor to rotate, which includes the following steps：Obtain the actual vibration frequency of vibrating motor；Compare actual vibration frequency and default vibration frequency, when actual vibration frequency is less than default vibration frequency and vibration pumpage is less than oscillating column pump maximum pump discharge, increases vibration pumpage；When actual vibration frequency is less than default vibration frequency and vibration pumpage is equal to oscillating column pump maximum pump discharge, increase engine speed.Using the control method after starting road roller, be automatically adjusted to default vibration frequency value work, save road roller it is offline after must every trolley require the link of manual adjustment oscillating column pump, it is time saving and energy saving, and reduce frequency modulation error.
Description
Technical field
The present invention relates to vibrated roller technical field more particularly to a kind of vibration frequency control systems of vibrated roller
And method.
Background technique
According to the resonance theory of the soil in vibrating compacting principle, when excited frequency is equal with native intrinsic frequency is compacted or
When very close, the effect of vibrating compacting is best.Therefore the vibration frequency of vibrated roller is to influence to be moved by pressure material granule
The important parameter of state.
The oscillating column pump of country's large-tonnage vibrated roller is mostly using the mode of frequency regulation of automatically controlled three control, which at present
Engine first must be reached into rated speed, the minimum and maximum row of oscillating column pump is adjusted further according to the frequency values of design requirement
Amount circumferentially rotates that generate vertical central spindle always outside by eccentric block inside steel wheel then according to the requirement of vibration frequency
Exciting force, it is final to realize material granule vibrating compacting.Wherein, exciting force calculation formula is F=M × A × (2 π f)2, wherein M
For parameter, A is amplitude, and f is required frequency values.
Since every vibrated roller all has to pass through manual adjustment, time-consuming, laborious and frequency modulation misses by a mile.Meanwhile it shaking
Dynamic road roller is sold to after client, and the working speed of engine is usually lower than rated speed in order to fuel-efficient by portions of client, this
The vibration frequency of sample road roller can be lower than design requirement value, thus greatly reduce the exciting force of road roller, influence consolidation effect.
In addition, the hydraulic system of domestic vibrated roller adjusts vibration in order to remain with surplus capacity, when engine is under rated speed
When frequency, oscillating column pump is not located in greatly maximum pump discharge state, causes the waste of resource.
Summary of the invention
The purpose of the present invention is to provide a kind of vibration frequency control system and methods of vibrated roller, and road roller can
It is automatically adjusted to required vibration frequency to work, there is time saving, laborsaving and energy-efficient advantage.
For this purpose, the present invention uses following technical scheme：
A kind of vibration frequency control method of vibrated roller, the vibrated roller include engine, oscillating column pump, vibration
Motor, the pressure oil that oscillating column pump described in the engine driving generates is output to the vibrating motor, to drive the vibration horse
Up to rotation, which is characterized in that include the following steps：
Obtain the actual vibration frequency of vibrating motor；
Obtain default vibration frequency；
Compare the actual vibration frequency and default vibration frequency, when actual vibration frequency is less than default vibration frequency and vibration
When dynamic pumpage is less than oscillating column pump maximum pump discharge, increase vibration pumpage；When actual vibration frequency be less than default vibration frequency and
When vibrating pumpage equal to oscillating column pump maximum pump discharge, increase engine speed.
Preferably, the actual vibration frequency is calculated by the revolving speed of vibrating motor.
Preferably, the default vibration frequency includes default higher frequency and default Frequency.
Preferably, the actual vibration frequency further includes with default vibration frequency：
When actual vibration frequency is equal to default vibration frequency, engine keeps current state work；
Preferably, the actual vibration frequency further includes with default vibration frequency：When the reality of vibrating motor
When border frequency is greater than default vibration frequency, engine speed is reduced.Preferably, also being wrapped after the reduction engine speed
It includes：
Judge whether engine speed is greater than limiting value, if it is not, reducing vibration pumpage.
Preferably, the limiting value is 1500r/min.
In order to achieve the above object, the present invention also provides a kind of vibration frequency control system of vibrated roller, use is above-mentioned
Vibration frequency control method, including：
Switching mechanism, the switching mechanism include high frequency trigger switch and low frequency trigger switch；
Vibrating motor is provided with the velocity sensor for acquiring its revolving speed on the vibrating motor；
Oscillating column pump, the oscillating column pump are connected to the vibrating motor by fluid pressure line；
Engine, the engine are connected to the oscillating column pump by shaft coupling；
Controller, the controller are electrically connected in the switching mechanism, the velocity sensor, the engine
The input terminal of the proportion magnetic valve of ECU and the oscillating column pump.
Preferably, further including the display for being electrically connected to the controller.
Preferably, further including the throttle control mechanism for being electrically connected to the engine.
Beneficial effects of the present invention：
The present invention provides a kind of vibration frequency control methods of vibrated roller, when the actual frequency of vibrating motor is less than
When presetting vibration frequency and vibration pumpage less than oscillating column pump maximum pump discharge, increase vibration pumpage.If being stepped up vibration
During dynamic pumpage, the actual frequency of vibrating motor reaches the discharge capacity of oscillating column pump most still less than default vibration frequency
Greatly, the prior art is avoided in order to retain surplus capacity, and the discharge capacity of oscillating column pump is generally not at maximum pump discharge state and causes the energy
The case where waste.Engine can just be able to satisfy wanting for default vibration frequency value with the rotary speed working lower than rated speed at this time
It asks, and can guarantee the consolidation effect of best exciting force, therefore there is fuel-efficient, energy-efficient advantage.
Moreover, when actual vibration frequency is less than default vibration frequency and vibration pumpage is equal to oscillating column pump maximum pump discharge,
Increase engine speed；Using the control method, after starting road roller, it is automatically adjusted to default vibration frequency value work,
Save road roller it is offline after must every trolley require the link of manual adjustment oscillating column pump, it is time saving and energy saving, and reduce frequency modulation
Error.
The present invention provides a kind of vibration frequency control system of vibrated roller, since controller is electrically connected in opening
Shutting mechanism, velocity sensor, the ECU of engine and oscillating column pump proportion magnetic valve input terminal, controller passes through velocity pick-up
The revolving speed of device acquisition vibrating motor is simultaneously converted into actual vibration frequency, and high frequency trigger switch and low frequency trigger switch with triggering
Corresponding default vibration frequency compares, and controller can automatically control turn for increasing vibration pumpage and adjusting engine
Speed, so that actual vibration frequency reaches the requirement of default vibration frequency, it is easy to operate, it is easy to use, and avoid artificial hand
The problem for adjusting and causing frequency modulation inaccurate is moved, frequency modulation precision is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the vibration frequency control system of vibrated roller in the embodiment of the present invention one；
Fig. 2 is the hydraulic schematic diagram of the vibration frequency control system of vibrated roller in the embodiment of the present invention one；
Fig. 3 is the flow chart of the vibration frequency control method of vibrated roller in embodiment two.
In figure：
1, vibrating motor；2, velocity sensor；3, oscillating column pump；4, engine；5, proportion magnetic valve；
6, slippage pump；7, multifunction valve；8, repairing overflow valve；9, loop flushing valve.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Embodiment one
Present embodiments provide a kind of vibration frequency control system of vibrated roller, as shown in Figs. 1-2, the vibration frequency
Control system includes：Switching mechanism, vibrating motor 1, oscillating column pump 3, engine 4 and controller, switching mechanism include high frequency triggering
Switch and low frequency trigger switch；The velocity sensor 2 for acquiring its revolving speed is wherein provided on vibrating motor 1, oscillating column pump 3 is logical
It crosses fluid pressure line and is connected to vibrating motor 1；Engine 4 is connected to oscillating column pump 3 by shaft coupling.Controller is electrically connected simultaneously
In the input terminal of the proportion magnetic valve 5 of switching mechanism, velocity sensor 2, the ECU of engine 4 and oscillating column pump 3.
The vibration frequency control system of vibrated roller provided in this embodiment, since controller is electrically connected in switch
Mechanism, velocity sensor 2, the ECU of engine 4 and oscillating column pump 3 proportion magnetic valve 5 input terminal, controller passing through speed
Sensor 2 acquires the revolving speed of vibrating motor 1 and is converted into actual vibration frequency, and touches with the high frequency trigger switch and low frequency of triggering
Hair switchs corresponding default vibration frequency and compares, and controller, which can automatically control to increase by 3 discharge capacity of oscillating column pump and adjust, to be started
The revolving speed of machine 4, so that actual vibration frequency reaches the requirement of default vibration frequency, it is easy to operate, it is easy to use, and avoid
The problem for manually adjusting and causing frequency modulation inaccurate improves frequency modulation precision.
Due to the vibration frequency control system be closed circuit hydraulic system, Hydraulic Elements may occur interior drainage pressure oil or
Person is cooling to exclude hydraulic oil, and in order to supplement section hydraulic oil to entire hydraulic system, which further includes
Slippage pump 6 and multifunction valve 7, the outlet of slippage pump 6 is by the first piping connection in multifunction valve 7, and multifunction valve 7 passes through the
Two piping connections are in oscillating column pump 3.Wherein multifunction valve 7 is to be integrated by overflow valve and check valve and obtained, and can prevent from vibrating
It pumps 3 hypertonia and damages, play the protective effect to oscillating column pump 3 and vibrating motor 1.Meanwhile it mending in order to prevent
The outlet pressure of oil pump 6 is excessively high, and repairing overflow valve 8 is additionally provided on the oil outlet of slippage pump 6.
Moreover, because vibrating motor 1 continues working and will lead to that temperature is excessively high, which further includes circuit
Flushing valve 9, the loop flushing valve 9, in vibrating motor 1, can be forced to shunt sub-fraction hydraulic oil time by third piping connection
It flows to fuel tank to be cooled down, plays pressure shunting function.
Personnel check for ease of operation, which includes the display for being electrically connected to controller, vibration
The actual vibration frequency of dynamic motor 1, the discharge capacity of default vibration frequency, the revolving speed of engine 4 and oscillating column pump 3 can be shown
Come, operator is facilitated to be monitored.
Since vibrated roller is after completing compacting material particle, needs to close vibration frequency control system, shake at this time
Dynamic road roller also has the function of individually travelling, and the revolving speed of engine 4 is by being electrically connected to the throttle control mechanism of engine 4 at this time
It is controlled.
Embodiment two
A kind of vibration frequency control method for present embodiments providing vibrated roller, using above-mentioned vibration frequency control system
System, wherein vibrated roller includes engine, oscillating column pump, vibrating motor, the pressure oil output that engine driving oscillating column pump generates
To vibrating motor, to drive vibrating motor to rotate, as shown in figure 3, the vibration frequency control method includes the following steps：
Obtain the actual vibration frequency of vibrating motor；
Obtain default vibration frequency；
Compare actual vibration frequency and default vibration frequency, when actual vibration frequency is less than default vibration frequency and oscillating column pump
When discharge capacity is less than oscillating column pump maximum pump discharge, increase vibration pumpage；When actual vibration frequency is less than default vibration frequency and vibration
When pumpage is equal to oscillating column pump maximum pump discharge, increase engine speed.
When the actual frequency of vibrating motor is less than default vibration frequency and vibration pumpage is less than oscillating column pump maximum pump discharge,
Increase vibration pumpage.If the actual frequency of vibrating motor is still less than pre- during being stepped up vibration pumpage
If vibration frequency, in order to guarantee that actual frequency can satisfy the requirement of predeterminated frequency, the discharge capacity of oscillating column pump can be reached to maximum,
The prior art is avoided in order to retain surplus capacity, the discharge capacity of oscillating column pump is generally not at maximum pump discharge state and causes energy waste
The case where.Engine can just be able to satisfy the requirement of default vibration frequency value at this time with the rotary speed working lower than rated speed, and
It can guarantee the consolidation effect of best exciting force, therefore there is fuel-efficient, energy-efficient advantage.
Due to being provided with the velocity sensor of the revolving speed for detecting vibrating motor on vibrating motor, then above-mentioned actual vibration
Frequency can be calculated by the revolving speed of vibrating motor.Meanwhile default vibration frequency includes right after triggering high frequency trigger switch
Corresponding default Frequency after the default higher frequency and triggering low frequency trigger switch answered.It is preset when actual vibration frequency is less than
Vibration frequency and vibration pumpage be equal to oscillating column pump maximum pump discharge when, increase engine speed, using the control method when starting
After road roller, be automatically adjusted to default vibration frequency value work, save road roller it is offline after must every trolley require manually
The link of oscillating column pump is adjusted, it is time saving and energy saving, and reduce frequency modulation error.
The vibration frequency control method of vibrated roller provided in this embodiment, when actual vibration frequency is less than default vibration
Frequency and vibration pumpage be equal to oscillating column pump maximum pump discharge when, increase engine speed so that actual vibration frequency approach is in pre-
If vibration frequency.If the actual frequency of vibrating motor is equal to default vibration frequency, remain best to be in vibrating motor
Vibration frequency, and engine is in maximum energy-saving state, engine keeps current rotating speed, maintains this work status.
However when being switched to low frequency trigger switch from high frequency trigger switch, there can be actual vibration frequency and be greater than default vibration
The case where dynamic frequency, preferentially reduces engine speed at this time.Since there are limiting values for engine speed, such as：The limiting value is
1500r/min, if the revolving speed of engine is reduced to the limiting value, actual vibration frequency is still greater than default vibration frequency, this
When reduce vibration pumpage.
Specifically, specific step is as follows for this method with reference to Fig. 3：
S1, the actual vibration frequency for obtaining vibrating motor；
S2, default vibration frequency is obtained；
S3, judge whether actual vibration frequency is less than default vibration frequency, if so, S31 is executed, if it is not, then executing
S32；
S31, judge to vibrate whether pumpage is less than oscillating column pump maximum pump discharge, if so, executing S311；If it is not, then executing
S312；
S311, increase vibration pumpage, and return to S1；
S312, increase engine speed, and return to S1；
At this point, vibration pumpage is equal to oscillating column pump maximum pump discharge；
S32, judge whether actual vibration frequency is equal to default vibration frequency, if so, S321 is executed, if it is not, then executing
S322；
S321, the work of engine current state is kept, and returns to S1；
S322, it reduces engine speed and executes S323；
At this point, actual vibration frequency is greater than default vibration frequency,
S323, judge whether engine speed is greater than limiting value, if so, S1 is returned to, if it is not, then executing S324；
S324, vibration pumpage is reduced, and returns to S1.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of vibration frequency control method of vibrated roller, the vibrated roller includes engine, oscillating column pump, vibration horse
It reaches, the pressure oil that oscillating column pump described in the engine driving generates is output to the vibrating motor, to drive the vibrating motor
Rotation, which is characterized in that include the following steps：
Obtain the actual vibration frequency of vibrating motor；
Obtain default vibration frequency；
Compare the actual vibration frequency and default vibration frequency, when actual vibration frequency is less than default vibration frequency and oscillating column pump
When discharge capacity is less than oscillating column pump maximum pump discharge, increase vibration pumpage；When actual vibration frequency is less than default vibration frequency and vibration
When pumpage is equal to oscillating column pump maximum pump discharge, increase engine speed.
2. vibration frequency control method according to claim 1, which is characterized in that the actual vibration frequency passes through vibration
The revolving speed of motor is calculated.
3. vibration frequency control method according to claim 1, which is characterized in that the default vibration frequency includes default
Higher frequency and default Frequency.
4. vibration frequency control method according to claim 1, which is characterized in that the actual vibration frequency
Further include with default vibration frequency：
When the actual frequency of vibrating motor is equal to default vibration frequency,
Engine keeps current state work.
5. vibration frequency control method according to claim 1, which is characterized in that the actual vibration frequency
Further include with default vibration frequency：When the actual frequency of vibrating motor is greater than default vibration frequency, engine speed is reduced.
6. vibration frequency control method according to claim 5, which is characterized in that after the reduction engine speed also
Including：
Judge whether engine speed is greater than limiting value, if it is not, reducing vibration pumpage.
7. vibration frequency control method according to claim 6, which is characterized in that the limiting value is 1500r/min.
8. the vibration frequency control system of a kind of vibrated roller, using vibration frequency control as claimed in claim 1 to 7
Method, which is characterized in that including：
Switching mechanism, the switching mechanism include high frequency trigger switch and low frequency trigger switch；
Vibrating motor (1) is provided with the velocity sensor (2) for acquiring its revolving speed on the vibrating motor (1)；
Oscillating column pump (3), the oscillating column pump (3) are connected to the vibrating motor (1) by fluid pressure line；
Engine (4), the engine (4) are connected to the oscillating column pump (3) by shaft coupling；
Controller, the controller are electrically connected in the switching mechanism, the velocity sensor (2), the engine (4)
ECU and the oscillating column pump (3) proportion magnetic valve (5) input terminal.
9. vibration frequency control system according to claim 8, which is characterized in that further include being electrically connected to the controller
Display.
10. vibration frequency control system according to claim 8, which is characterized in that further include being electrically connected to described start
The throttle control mechanism of machine (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810695826.2A CN108824134A (en) | 2018-06-29 | 2018-06-29 | A kind of vibration frequency control system and method for vibrated roller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810695826.2A CN108824134A (en) | 2018-06-29 | 2018-06-29 | A kind of vibration frequency control system and method for vibrated roller |
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| CN108824134A true CN108824134A (en) | 2018-11-16 |
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| CN201810695826.2A Pending CN108824134A (en) | 2018-06-29 | 2018-06-29 | A kind of vibration frequency control system and method for vibrated roller |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112048971A (en) * | 2020-08-25 | 2020-12-08 | 三一汽车制造有限公司 | Energy-saving control method and device for road roller and road roller |
| CN113047127A (en) * | 2021-04-25 | 2021-06-29 | 山东临工工程机械有限公司 | Control method for improving compaction efficiency of road roller and vibration system thereof |
| CN113585012A (en) * | 2021-08-30 | 2021-11-02 | 山东临工工程机械有限公司 | Vibration and walking control method and control system of road roller |
| CN116122279A (en) * | 2023-04-14 | 2023-05-16 | 山东临工工程机械有限公司 | Pile driver control method and pile driver |
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| CN113585012B (en) * | 2021-08-30 | 2024-03-12 | 山东临工工程机械有限公司 | Vibration and walking control method and system of road roller |
| CN116122279A (en) * | 2023-04-14 | 2023-05-16 | 山东临工工程机械有限公司 | Pile driver control method and pile driver |
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