CN102425196A - Automatic leveling system for grader - Google Patents
Automatic leveling system for grader Download PDFInfo
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- CN102425196A CN102425196A CN2011102551043A CN201110255104A CN102425196A CN 102425196 A CN102425196 A CN 102425196A CN 2011102551043 A CN2011102551043 A CN 2011102551043A CN 201110255104 A CN201110255104 A CN 201110255104A CN 102425196 A CN102425196 A CN 102425196A
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- China
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- sensor
- grader
- slope sensor
- land leveller
- master controller
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Abstract
The invention discloses an automatic leveling system for a grader, and belongs to the technical field of construction machinery control systems. The automatic leveling system comprises a proportional valve block, a long-slope sensor, a cross-slope sensor, a longitudinal-slope sensor, a rotating sensor and a master controller comprising an A/D (analog/digital) conversion module, a CPU (central processing unit) control module and a signal processing amplification module circuit, wherein the master controller is respectively connected with the long-slope sensor, the cross-slope sensor, the longitudinal-slope sensor and the rotating sensor through CAN (controller area network) buses, and the proportional valve block is connected with the master controller through a lead and is connected with a hydraulic system of the grader; the long-slope sensor is arranged on a big arm of the grader, and the cross-slope sensor and the longitudinal-slope sensor are arranged on a shovel blade of the grader; and a fixing part of the rotating sensor is arranged on a rotating fixed platform of the shovel blade of the grader, and a movable part of the rotating sensor is arranged on a rotating movable platform of the shovel blade of the grader. The automatic leveling system for the grader has the beneficial effect that: the operation difficulty of drivers is reduced.
Description
Technical field
The present invention relates to a kind of land leveller automatic leveling system, belong to engineering machinery control systems technology field.
Background technology
Do not have automatic leveling device mostly in view of present land leveller, the operation on level land is all manually accomplished by the driver, and is very high to driver's technical requirements, and the driver who cultivates a maturation will spend long time.So the user hopes to have a cover automatic leveling device to reduce driver's operation easier especially.
Summary of the invention
To the problem that above-mentioned prior art exists, the present invention provides a kind of steel ball that can guarantee to have good rolling characteristics, and oiling is convenient, is fit to the pivoting support of comparatively accurate mechanical requirements.
To achieve these goals; The technical scheme that the present invention adopts is: a kind of land leveller automatic leveling system comprises proportioning valve group, long slope sensor, horizontal wall inscription sensor, longitudinal gradient sensor, turn-sensitive device and includes the master controller that A/D modular converter, CPU control module and signal are handled the amplification module circuit; Master controller is connected with long slope sensor, horizontal wall inscription sensor, longitudinal gradient sensor and turn-sensitive device respectively through the CAN bus, and the proportioning valve group is connected with master controller through lead, and the proportioning valve group links to each other with the hydraulic system of land leveller; Long slope sensor is installed on the big arm of land leveller; Horizontal wall inscription sensor and longitudinal gradient sensor are installed on the land leveller perching knife; The fixed part of turn-sensitive device is installed on the rotational fixation platform of land leveller perching knife, and the movable part of turn-sensitive device is installed on the rotary moveable platform of land leveller perching knife.
Preferably, described longitudinal gradient sensor adopts 6 ultrasonic distance sensors.
The invention has the beneficial effects as follows: can control perching knife more accurately, realize accurate control, satisfy the high-grade requirement of building the road land leveller; Reduced driver's operation easier.
Description of drawings
Fig. 1 is a theory diagram of the present invention.
The specific embodiment
To combine accompanying drawing that the present invention is described further below.
As shown in Figure 1: as to the present invention includes proportioning valve group, long slope sensor, horizontal wall inscription sensor, longitudinal gradient sensor, turn-sensitive device and include the master controller that A/D modular converter, CPU control module and signal are handled the amplification module circuit; Master controller is connected with long slope sensor, horizontal wall inscription sensor, longitudinal gradient sensor and turn-sensitive device respectively through the CAN bus, and the proportioning valve group is connected with master controller through lead, and the proportioning valve group links to each other with the hydraulic system of land leveller; Long slope sensor is installed on the big arm of land leveller; Horizontal wall inscription sensor and longitudinal gradient sensor are installed on the land leveller perching knife; The fixed part of turn-sensitive device is installed on the rotational fixation platform of land leveller perching knife, and the movable part of turn-sensitive device is installed on the rotary moveable platform of land leveller perching knife.
Preferably, described longitudinal gradient sensor adopts 6 ultrasonic distance sensors.
Master controller links to each other with each sensor through the CAN bus; Each sensor record each association all be through the CAN bus transfer to master controller, after master controller receives, output pwm signal; Be input to proportioning valve after the processing of this signal through amplification module, realize control the perching knife oil cylinder.
The longitudinal gradient sensor can measure the distance of benchmark rope and datum, imports fixing distance by the user, in case measure the distance that departs from setting, the oil cylinder that main controller will be controlled perching knife goes up and down to return to setpoint distance, thereby realizes the control of perching knife one end; The horizontal wall inscription sensor is used for measuring the gradient of perching knife, makes perching knife remain the gradient of setting; Long slope sensor is used for the gradient of measuring machine on direction of advance; The fuselage gradient that the anglec of rotation that turn-sensitive device records and long slope sensor record combines and is used to proofread and correct the horizontal wall inscription value.
Claims (2)
1. land leveller automatic leveling system; It is characterized in that, comprise proportioning valve group, long slope sensor, horizontal wall inscription sensor, longitudinal gradient sensor, turn-sensitive device and include the master controller that A/D modular converter, CPU control module and signal are handled the amplification module circuit; Master controller is connected with long slope sensor, horizontal wall inscription sensor, longitudinal gradient sensor and turn-sensitive device respectively through the CAN bus, and the proportioning valve group is connected with master controller through lead, and the proportioning valve group links to each other with the hydraulic system of land leveller; Long slope sensor is installed on the big arm of land leveller; Horizontal wall inscription sensor and longitudinal gradient sensor are installed on the land leveller perching knife; The fixed part of turn-sensitive device is installed on the rotational fixation platform of land leveller perching knife, and the movable part of turn-sensitive device is installed on the rotary moveable platform of land leveller perching knife.
2. a kind of land leveller automatic leveling system according to claim 1 is characterized in that described longitudinal gradient sensor adopts 6 ultrasonic distance sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102551043A CN102425196A (en) | 2011-08-31 | 2011-08-31 | Automatic leveling system for grader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102551043A CN102425196A (en) | 2011-08-31 | 2011-08-31 | Automatic leveling system for grader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102425196A true CN102425196A (en) | 2012-04-25 |
Family
ID=45959222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102551043A Pending CN102425196A (en) | 2011-08-31 | 2011-08-31 | Automatic leveling system for grader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102425196A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258686A (en) * | 2019-06-28 | 2019-09-20 | 三一汽车制造有限公司 | Perching knife jacking system, land leveller and control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5520834A (en) * | 1978-07-31 | 1980-02-14 | Komatsu Ltd | Automatic controller for construction machine |
| WO1996017136A1 (en) * | 1994-11-28 | 1996-06-06 | Komatsu Ltd. | Tractive force control apparatus and method |
| JPH11236716A (en) * | 1997-11-10 | 1999-08-31 | Topcon Corp | Construction working machinery automatic control system |
| CN2622256Y (en) * | 2002-12-30 | 2004-06-30 | 三一重工股份有限公司 | Automatic leveling-up machine |
| CN2782778Y (en) * | 2005-04-05 | 2006-05-24 | 吴骏 | Automatic levelling system for earth levelling machine |
| CN101718072A (en) * | 2009-12-04 | 2010-06-02 | 中国人民解放军国防科学技术大学 | Camera measurement based automatic leveling system and method of spreading machine |
| CN202298700U (en) * | 2011-08-31 | 2012-07-04 | 徐州市茜帅电子产品有限公司 | Automatic leveling system of land leveler |
-
2011
- 2011-08-31 CN CN2011102551043A patent/CN102425196A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5520834A (en) * | 1978-07-31 | 1980-02-14 | Komatsu Ltd | Automatic controller for construction machine |
| WO1996017136A1 (en) * | 1994-11-28 | 1996-06-06 | Komatsu Ltd. | Tractive force control apparatus and method |
| JPH11236716A (en) * | 1997-11-10 | 1999-08-31 | Topcon Corp | Construction working machinery automatic control system |
| CN2622256Y (en) * | 2002-12-30 | 2004-06-30 | 三一重工股份有限公司 | Automatic leveling-up machine |
| CN2782778Y (en) * | 2005-04-05 | 2006-05-24 | 吴骏 | Automatic levelling system for earth levelling machine |
| CN101718072A (en) * | 2009-12-04 | 2010-06-02 | 中国人民解放军国防科学技术大学 | Camera measurement based automatic leveling system and method of spreading machine |
| CN202298700U (en) * | 2011-08-31 | 2012-07-04 | 徐州市茜帅电子产品有限公司 | Automatic leveling system of land leveler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258686A (en) * | 2019-06-28 | 2019-09-20 | 三一汽车制造有限公司 | Perching knife jacking system, land leveller and control method |
| CN110258686B (en) * | 2019-06-28 | 2021-11-12 | 三一汽车制造有限公司 | Blade lifting system, grader and control method |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120425 |