CN204199153U - The paver screed vibration frequency control system associated with travel speed - Google Patents
The paver screed vibration frequency control system associated with travel speed Download PDFInfo
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- CN204199153U CN204199153U CN201420205603.0U CN201420205603U CN204199153U CN 204199153 U CN204199153 U CN 204199153U CN 201420205603 U CN201420205603 U CN 201420205603U CN 204199153 U CN204199153 U CN 204199153U
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- vibration frequency
- paver
- travel speed
- controller
- screed
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Abstract
The utility model discloses a kind of paver screed vibration frequency control system associated with travel speed, relate to paver screed vibration frequency control technology field.The utility model has a controller, the travel speed potentiometer be connected with controller respectively, vibration frequency ratio potentiometer, ridden in left or right direction velocity sensor, vibration frequency sensor, left front enter proportion magnetic valve, right front enter proportion magnetic valve and vibrate proportion magnetic valve.Determined the corresponding relation k of a vibration frequency and travel speed by vibration frequency ratio potentiometer, according to the setting value of travel speed potentiometer and the deviation between the product of k and vibration frequency measured value, closed-loop control is carried out to the vibration frequency of screed.The vibration frequency of paver screed is associated with travel speed, ensures the planeness on road surface and uniform compactness better, greatly improve the production efficiency of paver and the spreading quality on road surface.
Description
Technical field
The utility model relates to paver screed vibration frequency control technology field, specifically a kind of paver screed vibration frequency control system associated with travel speed.
Background technology
Paver is used to pave the special-purpose machinery of the road materialss such as bituminous mixture, basic unit's stabilizing material, roller-compacting concrete material (RCC) and graded broken stone, be build various standard highway and one of the basic unit of town road and square, airport, parking lot and dykes and dams and irrigation canals and ditches and the key equipment of surface layer, the quality of its rideability directly affects the planeness of paving concrete pavement, initial compactness and segregation degree.Vibrating device on paver screed effectively can increase the compactness of paving concrete pavement, and the number of times of the unit distance internal vibration that paver travels directly affects the compactness of paving concrete pavement, and then affects the planeness on road surface.
Traditional paver screed vibrational system comprises: controller, vibration frequency potentiometer, plunger variable pump, piston motor.Control program adopts open-loop control method, the flow of vibration plunger variable pump is regulated to control the frequency vibrated by vibration frequency potentiometer and controller, there is no the vibration frequency that vibration frequency Sensor monitoring is real-time, closed-loop control cannot be realized, therefore, when paving operation, once the frequency setting of vibration, the constant speed of travel must be had to match, otherwise, when the speed of travel changes, the number of times of unit interval internal vibration is constant, number of times in unit operating range will change, the direct planeness affecting paving concrete pavement, need the setting value readjusting vibration frequency, limit the production efficiency of operating paver.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the utility model provides a kind of paver screed vibration frequency control system associated with travel speed, the vibration frequency of paver screed can be made to associate with travel speed, meet the changeless requirement of number of times of the unit distance internal vibration travelled, the planeness on road surface and uniform compactness can be ensured well, greatly improve the production efficiency of paver and the spreading quality on road surface.
The utility model realizes with following technical scheme: a kind of paver screed vibration frequency control system associated with travel speed, comprise controller, the travel speed potentiometer for realizing stepless speed regulation is connected with controller, the vibration frequency ratio potentiometer of the incidence coefficient for setting screed vibration frequency and paver travel speed is connected with controller, the left road speed sensors for gathering paver left crawler belt travel speed is connected with controller, the right travel velocity sensor for gathering paver right-hand track chiain travel speed is connected with controller, the vibration frequency sensor for gathering screed vibration frequency is connected with controller, described controller connect respectively for control the left and right driving pump of paver and oscillating column pump flow left front enter proportion magnetic valve, right front enter proportion magnetic valve and vibration proportion magnetic valve.
Operating principle: the speed travelled by ridden in left or right direction velocity sensor Real-Time Monitoring paver, controller adopts pid control algorithm, carries out closed-loop control according to the setting value of travel speed potentiometer and the deviation of left and right crawler belt travel speed respectively to left and right crawler belt travel speed; When paving operation, by the vibration frequency of vibration frequency sensor Real-Time Monitoring paver screed, controller adopts pid control algorithm, according to the setting value of screed vibration frequency and the deviation of vibration frequency, closed-loop control is carried out to vibration frequency, wherein, the setting value of screed vibration frequency to be multiplied with the incidence coefficient k of travel speed by setting value and the vibration frequency measured in advance of travel speed potentiometer and to obtain.
The beneficial effects of the utility model are: the vibration frequency of paver screed can be made to associate with travel speed, in paving operation process, when needing to change speed that paver travels to adapt to the needs of the uninterrupted operation of engineering, meet the changeless requirement of number of times of the unit distance internal vibration travelled, the planeness on road surface and uniform compactness can be ensured well, greatly improve the production efficiency of paver and the spreading quality on road surface.Structure is simple, and safe and reliable, Detection results is good.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the circuit diagram of a kind of embodiment of the utility model;
Fig. 2 is the paver screed vibration frequency control system schematic diagram associated with travel speed.
Detailed description of the invention
As shown in Figure 1, a kind of paver screed vibration frequency control system associated with travel speed has a controller C1, the travel speed potentiometer R1 for realizing stepless speed regulation is connected with controller C1, the vibration frequency ratio potentiometer R2 of the incidence coefficient for setting screed vibration frequency and paver travel speed is connected with controller C1, the left road speed sensors B1 for gathering paver left crawler belt travel speed is connected with controller C1, the right travel velocity sensor B2 for gathering paver right-hand track chiain travel speed is connected with controller C1, the vibration frequency sensor B3 for gathering screed vibration frequency is connected with controller C1, described controller C1 connects the left front proportion magnetic valve Y1 of entering, the right front proportion magnetic valve Y2 of entering for controlling the left and right driving pump of paver and oscillating column pump flow respectively and vibrates proportion magnetic valve Y3.
As shown in Figure 2, described controller C1 adopts PLC.Described left velocity sensor B1 and right velocity sensor B2 all adopts hall-effect speed sensor, the corresponding inside being arranged on the left and right driving motors of paver; Described vibration frequency sensor B3 adopts Hall-type frequency sensor, is arranged on paver screed.Conveniently operate, described travel speed potentiometer R1 and vibration frequency ratio potentiometer R2 is arranged on the operating desk of paver.
Wherein, the left crawler belt travel speed v1 of left road speed sensors B1 Real-Time Monitoring paver, right travel velocity sensor B2 Real-Time Monitoring paver right-hand track chiain travel speed v2, the vibration frequency f of vibration frequency sensor B3 Real-Time Monitoring screed, the deviation e1 of the setting value v that controller C1 provides according to speed potentiometer R1 and left crawler belt travel speed v1 export certain Current Control left front enter proportion magnetic valve Y1, realize the closed-loop control to left crawler belt travel speed, its control algolithm adopts PID to control, and the control principle of right-hand track chiain speed is identical.
the course of work: before operating paver, first the travel speed rule of thumb setting suitable paver screed vibration frequency and paver paving operation by vibration frequency ratio potentiometer R2 under open loop situations matches, and namely determines the incidence coefficient k of screed vibration frequency and paver travel speed.
When operating paver, the control of screed vibration frequency enters closed-loop control state, controller C1 to be multiplied with incidence coefficient k by the setting value of travel speed potentiometer R1 and to obtain the setting value r of paver screed vibration frequency, controller C1 exports certain Current Control according to the deviation e3 of the setting value r of paver screed vibration frequency and the vibration frequency f of screed and vibrates proportion magnetic valve Y3, realize the closed-loop control to screed vibration frequency, its control algolithm also adopt PID control, the size variation of incidence coefficient k can be realized by adjustment vibration frequency ratio potentiometer R2.
Because paving operation needs to carry out continuously, when when running into material deficiency in hopper of paver, dumper does not put in place, need to reduce travel speed to wait for dumper by travel speed potentiometer R1, now, because screed vibration frequency associates with travel speed, the frequency of screed vibration can reduce along with travel speed, and the vibration number in unit operating range is constant, ensure that the planeness of paving concrete pavement and same compactness.
In like manner, wait for too much when running into dumper, when needing the speed improving operating paver, travel speed can be improved by travel speed potentiometer R1, the frequency of screed vibration raises along with the rising of travel speed, number of times in unit operating range is still constant, ensure that the planeness of paving concrete pavement and same compactness, improves production efficiency and the quality of production of operating paver.
The algorithm adopted in the utility model middle controller C1 is existing known algorithms most in use, by existing algorithm, can realize the purpose of this utility model by the said equipment.
Claims (4)
1. the paver screed vibration frequency control system associated with travel speed, it is characterized in that: comprise controller (C1), the travel speed potentiometer (R1) for realizing stepless speed regulation is connected with controller (C1), the vibration frequency ratio potentiometer (R2) of the incidence coefficient for setting screed vibration frequency and paver travel speed is connected with controller (C1), the left road speed sensors (B1) for gathering paver left crawler belt travel speed is connected with controller (C1), the right travel velocity sensor (B2) for gathering paver right-hand track chiain travel speed is connected with controller (C1), the vibration frequency sensor (B3) for gathering screed vibration frequency is connected with controller (C1), described controller (C1) connect respectively for control the left and right driving pump of paver and oscillating column pump flow left front enter proportion magnetic valve (Y1), right front enter proportion magnetic valve (Y2) and vibration proportion magnetic valve (Y3).
2. the paver screed vibration frequency control system associated with travel speed according to claim 1, is characterized in that: described controller (C1) adopts PLC.
3. the paver screed vibration frequency control system associated with travel speed according to claim 1, it is characterized in that: described left velocity sensor (B1) and right velocity sensor (B2) all adopt hall-effect speed sensor, the corresponding inside being arranged on the left and right driving motors of paver; Described vibration frequency sensor (B3) adopts Hall-type frequency sensor, is arranged on paver screed.
4. the paver screed vibration frequency control system associated with travel speed according to any one of claim 1-3, is characterized in that: described travel speed potentiometer (R1) and vibration frequency ratio potentiometer (R2) are arranged on the operating desk of paver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420205603.0U CN204199153U (en) | 2014-04-24 | 2014-04-24 | The paver screed vibration frequency control system associated with travel speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420205603.0U CN204199153U (en) | 2014-04-24 | 2014-04-24 | The paver screed vibration frequency control system associated with travel speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204199153U true CN204199153U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420205603.0U Expired - Fee Related CN204199153U (en) | 2014-04-24 | 2014-04-24 | The paver screed vibration frequency control system associated with travel speed |
Country Status (1)
| Country | Link |
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| CN (1) | CN204199153U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9995008B2 (en) | 2016-09-15 | 2018-06-12 | Caterpillar Paving Products Inc. | System and method for controlling vibratory effort on asphalt mat |
| DE102019002491A1 (en) * | 2019-04-05 | 2020-10-08 | Dynapac Gmbh | Method for operating a road paver and screed for a road paver |
| CN111926657A (en) * | 2020-07-16 | 2020-11-13 | 柳工无锡路面机械有限公司 | Intelligent unmanned system of paver |
| 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 |
-
2014
- 2014-04-24 CN CN201420205603.0U patent/CN204199153U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9995008B2 (en) | 2016-09-15 | 2018-06-12 | Caterpillar Paving Products Inc. | System and method for controlling vibratory effort on asphalt mat |
| DE102019002491A1 (en) * | 2019-04-05 | 2020-10-08 | Dynapac Gmbh | Method for operating a road paver and screed for a road paver |
| CN111926657A (en) * | 2020-07-16 | 2020-11-13 | 柳工无锡路面机械有限公司 | Intelligent unmanned system of paver |
| CN111926657B (en) * | 2020-07-16 | 2024-04-16 | 柳工无锡路面机械有限公司 | Intelligent unmanned system of paver |
| 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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20160424 |