CN202787345U - Bulldozer shovel tilt limit control system - Google Patents
Bulldozer shovel tilt limit control system Download PDFInfo
- Publication number
- CN202787345U CN202787345U CN 201220283421 CN201220283421U CN202787345U CN 202787345 U CN202787345 U CN 202787345U CN 201220283421 CN201220283421 CN 201220283421 CN 201220283421 U CN201220283421 U CN 201220283421U CN 202787345 U CN202787345 U CN 202787345U
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- controller
- bulldozer
- inclination
- tilt
- electromagnetic valve
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Abstract
The utility model relates to a bulldozer shovel tilt limit control system which comprises an angle sensor, a controller, a tilt electromagnetic valve, a tilt oil cylinder and a shovel working handle. The shovel working handle and the controller are connected through a controller area network (CAN) bus, the angel sensor and the input connector of the controller are connected, the output connector of the controller is in connection with the tilt electromagnetic valve, and the tilt electromagnetic valve is connected with the tilt oil cylinder. The bulldozer shovel tilt limit control system has the advantages that the bulldozer shovel tilt limit control system is simple in structure, the angle sensor collects tilt angle values and accurate and precise data and the controller achieves intelligent analysis and judgment, so that gradient of a shovel is limited accurately, operation safety is guaranteed, and a bulldozer is enabled to be adapted to more complex and broader working conditions.
Description
Technical field
The utility model relates to a kind of bulldozer, relates in particular to a kind of bulldozer perching knife inclination limit control system.
Background technology
At present, traditional bulldozer perching knife great majority all are the oblique oil cylinders of uniclinal on the market.Because some special operation conditions, bulldozer perching knife in work need have the function of inclination, namely the height of tool bits is inconsistent.The stroke of the spacing main dependence dump ram of tilting action of perching knife is realized on the bulldozer now.The form of the oblique oil cylinder of uniclinal is more common, and namely perching knife push rod one end is dump ram, and the trapezoidal thread that an other end is adjustable type is controlled, and still, for work such as some special soil-shiftings, floor mouldings, the uniclinal angling blade can not satisfy instructions for use.The perching knife of present two dump rams controls, two lift cylinder synchronous workings realize the lifting of perching knives, realize the pitching function of cutter head during the simultaneous retractable of dump ram, not the tilt function of realization perching knife during simultaneous retractable.Hood, crawler belt do not produce interferences, collision when how to guarantee that perching knife carries out tilting action and before the car body, need to have become the problem of solutions.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of bulldozer perching knife inclination limit control system is provided, hood, crawler belt do not produce the problem of interferences, collision when solving bulldozer perching knife and carry out tilting action and before the car body, make the more complicated and wide operating mode of bulldozer adaptation.
The utility model is that the technical scheme that the problem of the above-mentioned proposition of solution adopts is:
A kind of bulldozer perching knife inclination limit control system, comprise angular transducer 1, controller 2, inclination electromagnetic valve 3, dump ram 4 and perching knife working handle 5, perching knife working handle 5 is connected with controller by the connection of CAN bus, angular transducer 1 is connected with the input interface of controller 2, controller 2 output interfaces connect inclination electromagnetic valve 3, and inclination electromagnetic valve 3 connects dump ram 4.
Described controller 2 comprises:
Receiving element 201 is used for receiving the tilting action signal from the electric control handle of bulldozer;
The first acquiring unit 202 is used for obtaining the tilt current angle of inclination value of oil cylinder of bulldozer;
Comparing unit 203 is used for more current bulldozer tilt the angle of inclination value of oil cylinder and the demarcation value of controller initializing set;
Operating principle of the present utility model: the angular transducer axis of rotation is connected with left and right sides yoke by mechanical linkage, be installed on the front hood both sides of car body, relative rotation for detection of the both sides yoke, the yoke corner of angular transducer collection inputs in the car body controller, vehicle operating is first, need to simply demarcate maximum inclination, when human pilot operation perching knife working handle triggers the perching knife tilt signals, the action of inclination electromagnetic valve, driving the both sides dump ram tilts, at this moment, left and right sides angle working sensor detects left and right sides yoke rotational angle theta constantly
LAnd θ
RWhen perching knife reaches maximum angle of inclination and does not just in time interfere with front hood, crawler belt, to this constantly the difference θ that carries out behind the additive operation of the collection value of left and right corner degree sensor in controller, demarcate, allowing controller give tacit consent to this anglec of rotation constantly is the threshold limit value that tilting action is finished, in case when reaching threshold limit value, controller output control inclination electromagnetic valve stops action, and dump ram no longer moves, thereby can effectively limit tilting action.In case after controller is demarcated and to be finished, calibration value deposited in the controller corresponding registers get final product.During next operation, the angle of inclination difference that angular transducer collects and first calibration value θ compare, when the angle of inclination when demarcating threshold value, the inclination electromagnetic valve is carried out tilting action, in case the angular signal that detects reaches when demarcating threshold value, controller namely stop to tilt electromagnetic valve output can be brought into play the tilt function of perching knife so to greatest extent, makes perching knife satisfy more applying working condition.
The beneficial effects of the utility model are: the utility model is simple in structure, gather the angle of inclination value by angular transducer, gather accurately accurate data and carry out intellectual analysis and judgement by controller, can limit the perching knife tilt quantity more accurately, ensure job safety, make bulldozer adapt to more complicated and wide operating mode.
Description of drawings
Fig. 1 is structure principle chart of the present utility model;
Fig. 2 is the internal module schematic diagram of Fig. 1 middle controller;
Wherein, 1-angular transducer, 2-controller, 3-inclination electromagnetic valve, 4-dump ram, 5-perching knife working handle, 201-receiving element, 202-the first acquiring unit, 203-comparing unit, 204-control module.
The specific embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
With reference to Fig. 1-2, the described a kind of bulldozer perching knife inclination limit control system of this specific embodiment, comprise angular transducer 1, controller 2, inclination electromagnetic valve 3, dump ram 4 and perching knife working handle 5, perching knife working handle 5 is connected with controller by the connection of CAN bus, angular transducer 1 is connected with the input interface of controller 2, controller 2 output interfaces connect inclination electromagnetic valve 3, and inclination electromagnetic valve 3 connects dump ram 4.
Described controller 2 comprises:
Receiving element 201 is used for receiving the tilting action signal from the electric control handle of bulldozer;
The first acquiring unit 202 is used for obtaining the tilt current angle of inclination value of oil cylinder of bulldozer;
Comparing unit 203 is used for more current bulldozer tilt the angle of inclination value of oil cylinder and the demarcation value of controller initializing set;
The operating principle of this specific embodiment: the angular transducer axis of rotation is connected with left and right sides yoke by mechanical linkage, be installed on the front hood both sides of car body, relative rotation for detection of the both sides yoke, the yoke corner of angular transducer collection inputs in the car body controller, vehicle operating is first, need to simply demarcate maximum inclination, when human pilot operation perching knife working handle triggers the perching knife tilt signals, the action of inclination electromagnetic valve, driving the both sides dump ram tilts, at this moment, left and right sides angle working sensor detects left and right sides yoke rotational angle theta constantly
LAnd θ
RWhen perching knife reaches maximum angle of inclination and does not just in time interfere with front hood, crawler belt, to this constantly the difference θ that carries out behind the additive operation of the collection value of left and right corner degree sensor in controller, demarcate, allowing controller give tacit consent to this anglec of rotation constantly is the threshold limit value that tilting action is finished, in case when reaching threshold limit value, controller output control inclination electromagnetic valve stops action, and dump ram no longer moves, thereby can effectively limit tilting action.In case after controller is demarcated and to be finished, calibration value deposited in the controller corresponding registers get final product.During next operation, the angle of inclination difference that angular transducer collects and first calibration value θ compare, when the angle of inclination when demarcating threshold value, the inclination electromagnetic valve is carried out tilting action, in case the angular signal that detects reaches when demarcating threshold value, controller namely stop to tilt electromagnetic valve output can be brought into play the tilt function of perching knife so to greatest extent, makes perching knife satisfy more applying working condition.
The beneficial effect of this specific embodiment is: the utility model is simple in structure, gather the angle of inclination value by angular transducer, gather accurately accurate data and carry out intellectual analysis and judgement by controller, can limit the perching knife tilt quantity more accurately, ensure job safety, make bulldozer adapt to more complicated and wide operating mode.
Below be that relational language is explained:
Angular transducer: a kind of cake formula is measured the sensor of the anglec of rotation, drives central axis by linkage and rotates, and the value of different rotational angle outputs is different, and this mechanism can be with the certain analog value of corner value transform output.Certainty of measurement can reach 0.001 °.
Two tilting actions: bulldozer perching knife is different with the yoke corner by the oil cylinder stroke of both sides dump rams output, realizes that perching knife with certain amplitude to the left or the right side inclination, can make bulldozer finish the dozing of how complicated kind like this.
Claims (2)
1. bulldozer perching knife inclination limit control system, it is characterized in that: comprise angular transducer (1), controller (2), inclination electromagnetic valve (3), dump ram (4) and perching knife working handle (5), perching knife working handle (5) is connected 2 with controller) connect by the CAN bus, angular transducer (1) is connected with the input interface of controller (2), controller (2) output interface connects inclination electromagnetic valve (3), and inclination electromagnetic valve (3) connects dump ram (4).
2. a kind of bulldozer perching knife inclination limit control system as claimed in claim 1, it is characterized in that: described controller (2) comprising:
Receiving element (201) is used for receiving the tilting action signal from the electric control handle of bulldozer;
The first acquiring unit (202) is used for obtaining the tilt current angle of inclination value of oil cylinder of bulldozer;
Comparing unit (203) is used for more current bulldozer tilt the angle of inclination value of oil cylinder and the demarcation value of controller initializing set;
Control module (204), when the comparative result of comparing unit (203) is that current bulldozer tilts the angle of inclination value of oil cylinder more than or equal to the demarcation value of controller initializing set, control inclination electromagnetic valve stops to export tilting action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220283421 CN202787345U (en) | 2012-06-16 | 2012-06-16 | Bulldozer shovel tilt limit control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220283421 CN202787345U (en) | 2012-06-16 | 2012-06-16 | Bulldozer shovel tilt limit control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202787345U true CN202787345U (en) | 2013-03-13 |
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ID=47814627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220283421 Expired - Fee Related CN202787345U (en) | 2012-06-16 | 2012-06-16 | Bulldozer shovel tilt limit control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202787345U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105378186A (en) * | 2014-06-02 | 2016-03-02 | 株式会社小松制作所 | Construction machinery control system, construction machinery, and construction machinery control method |
-
2012
- 2012-06-16 CN CN 201220283421 patent/CN202787345U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105378186A (en) * | 2014-06-02 | 2016-03-02 | 株式会社小松制作所 | Construction machinery control system, construction machinery, and construction machinery control method |
| CN105378186B (en) * | 2014-06-02 | 2017-02-22 | 株式会社小松制作所 | Construction machinery control system, construction machinery, and construction machinery control method |
| US9677251B2 (en) | 2014-06-02 | 2017-06-13 | Komatsu Ltd. | Construction machine control system, construction machine, and method of controlling construction machine |
| US10006189B2 (en) | 2014-06-02 | 2018-06-26 | Komatsu Ltd. | Construction machine control system, construction machine, and method of controlling construction machine |
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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 |
Granted publication date: 20130313 Termination date: 20210616 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |