CN201647861U - Anti-overturning device for lorry-mounted crane - Google Patents
Anti-overturning device for lorry-mounted crane Download PDFInfo
- Publication number
- CN201647861U CN201647861U CN2009202326908U CN200920232690U CN201647861U CN 201647861 U CN201647861 U CN 201647861U CN 2009202326908 U CN2009202326908 U CN 2009202326908U CN 200920232690 U CN200920232690 U CN 200920232690U CN 201647861 U CN201647861 U CN 201647861U
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- chip microcomputer
- single chip
- pressure sensor
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Abstract
The utility model discloses an anti-overturning device for a lorry-mounted crane. The anti-overturning device belongs to safety protection devices for construction machinery, and comprises a switch valve, a singlechip system, a plurality of pressure sensors, a plurality of telescopic cylinders, a displacement sensor and a plurality of angle sensors, wherein the pressure sensors measure the oil inlet/outlet pressure of oil cylinders; the displacement sensor measures the expansion amount of telescopic arms; the angle sensors measure the included angles between an inner arm and the horizontal plane and between the telescopic arms and the horizontal plane; and signals measured by the pressure sensors, the displacement sensor and the angle sensors are fed back to the singlechip system, and then the singlechip system controls the starting/stopping of actions, such as amplitude of variation and revolution and the like of the lorry-mounted crane through controlling the switch valve, and sends an alarming prompt signal. The utility model has the benefits that the anti-overturning device can send an alarming signal when the centre-of-gravity position of the complete machine excesses the supporting range or the pressure of support oil cylinders is smaller than Pmin, thereby playing a part in double safety protection, which greatly improves the reliability, guarantees the safety of the complete machine, and avoids the overturning accidents.
Description
Technical field
The utility model relates to the safety guard of construction machinery and equipment, specifically is a kind of lorry-mounted crane anti-tilting apparatus.Be applicable to the lorry-mounted crane that drives telescopic boom by telescopic oil cylinder, stability problem when solving the work of large-tonnage lorry-mounted crane.
Background technology
Lorry-mounted crane is that a kind of machinery, hydraulic pressure, Eltec of collecting is the special-use vehicle of one, targeted loads is transported to a kind of mechanism arrangement of assigned address by continuous luffing, the revolution of mechanism, action such as stretch, hoist.
The large-tonnage lorry-mounted crane is a kind of development tendency, and the at present domestic biggest lifting capacity that occurred is 25 tons a lorry-mounted crane, then reaches 50 tons abroad.Along with the raising of tonnage, it is particularly important that the lorry-mounted crane job security more and more seems, because little tonnage lorry-mounted crane hoisting moment is little; the tilting moment that produces is little; car chassis itself just can meet the demands, and the probability that the generation car load is tumbled is very little, so do not need anti-tipping protection.But along with the raising of tonnage, tilting moment is increasing, and the deficiency in weight of car chassis own is with its tilting moment of balance, and stability is carried out tracking and monitoring in the time of must working to lorry-mounted crane, prevents to tumble.
Summary of the invention
The utility model provides a kind of lorry-mounted crane anti-tilting apparatus, purpose is in order to improve large-tonnage lorry-mounted crane job security, the stability of this device energy real-time tracking monitoring lorry-mounted crane, when machine gravity exceeds support zone or support oil cylinder pressure less than a certain minimum value, Single Chip Microcomputer (SCM) system is sent control command stops actions such as lorry-mounted crane luffing, revolution, and send the alarm signal, and guarantee the safety of complete machine, prevent overthrow accident.
The utility model is realized with following technical scheme: a kind of lorry-mounted crane anti-tilting apparatus is characterized in that: comprising:
---Single Chip Microcomputer (SCM) system and with Single Chip Microcomputer (SCM) system bonded assembly switch valve;
---respectively is installed in 2 cavity of resorption pressure sensor I and 2 the upper cavity pressure sensor I on 2 support oil cylinders, is connected with Single Chip Microcomputer (SCM) system, is used to detect the turnover oil pressure of 2 support oil cylinders and will passes in and out the oil pressure parameter be transferred to Single Chip Microcomputer (SCM) system;
Cavity of resorption pressure sensor II on---the be installed in amplitude oil cylinder I and upper cavity pressure sensor II are connected with Single Chip Microcomputer (SCM) system, are used to detect the turnover oil pressure of amplitude oil cylinder I, and will pass in and out the oil pressure parameter and be transferred to Single Chip Microcomputer (SCM) system;
Cavity of resorption pressure sensor III on---the be installed in amplitude oil cylinder II and upper cavity pressure sensor III are connected with Single Chip Microcomputer (SCM) system, are used to detect the turnover oil pressure of amplitude oil cylinder II, and will pass in and out the oil pressure parameter and be transferred to Single Chip Microcomputer (SCM) system;
The angular transducer I of---be installed on the fixed arm is connected with Single Chip Microcomputer (SCM) system, is used to measure the angle of fixed arm and horizontal surface, and the angle parameter that records is transferred to Single Chip Microcomputer (SCM) system;
Displacement pickup on---the be installed in telescopic boom III is connected with Single Chip Microcomputer (SCM) system, is used to measure the extension elongation sum of telescopic boom I, II and III, and the length parameter that records is transferred to Single Chip Microcomputer (SCM) system;
The angular transducer II of---be installed on the inner arm is connected with Single Chip Microcomputer (SCM) system, is used to measure the angle of inner arm and horizontal surface, and the angle parameter that records is transferred to Single Chip Microcomputer (SCM) system;
The multi-turn potentiometer of---be installed on the turning gear is connected with Single Chip Microcomputer (SCM) system, is used to measure the rotary position of upper frame part, and the parameter that records is transferred to Single Chip Microcomputer (SCM) system;
---warning device; Be connected with Single Chip Microcomputer (SCM) system, be used for exceeding support zone and support oil cylinder pressure less than support oil cylinder minimum pressure P in the machine gravity position
MinThe time send warning.
Pressure sensor is measured the turnover oil pressure of oil cylinder, the stroke of displacement sensor telescopic boom, angular transducer is measured the angle of inner arm, telescopic boom and horizontal surface, the measurement signal of three kinds of sensors feeds back to Single Chip Microcomputer (SCM) system, Single Chip Microcomputer (SCM) system master cock valve is controlled action start and stop such as lorry-mounted crane luffing, revolution, and is sent the alarm signal then, guarantee the safety of complete machine, prevent overthrow accident.
Be used to adopt technique scheme; the beneficial effects of the utility model are: the stability of this device energy real-time tracking monitoring lorry-mounted crane; when machine gravity exceeds support zone or support oil cylinder pressure less than a certain minimum value; Single Chip Microcomputer (SCM) system is sent control command stops actions such as lorry-mounted crane luffing, revolution; and send the alarm signal; lorry-mounted crane is played the dual security protection effect, improved reliability during operation.Guarantee large-tonnage lorry-mounted crane complete machine job security, prevented overthrow accident.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is that each constituent elements of the present utility model is at lorry-mounted crane installation site figure;
Fig. 2 is an electric functional block diagram of the present utility model.
Among the figure: 1, cavity of resorption pressure sensor I, 2, upper cavity pressure sensor I, 3, support oil cylinder, 4, Single Chip Microcomputer (SCM) system, 5, switch valve, 6, amplitude oil cylinder I, 7, cavity of resorption pressure sensor II, 8, upper cavity pressure sensor II, 9, cavity of resorption pressure sensor III, 10, upper cavity pressure sensor III, 11, amplitude oil cylinder II, 12, angular transducer I, 13, fixed arm, 14, telescopic boom I, 15, telescopic boom II, 16, telescopic boom III, 17, displacement pickup, 18, angular transducer II, 19, inner arm, 20, the multi-turn potentiometer, 21, turning gear, 22, warning device, 23, the supporting leg case.
The specific embodiment
As shown in Figure 1,2 cavity of resorption pressure sensor I 1 and 2 upper cavity pressure sensor I 2 are installed in respectively on 2 support oil cylinders 3 in front and back, Single Chip Microcomputer (SCM) system 4 and switch valve 5 are installed in the below of lorry-mounted crane, cavity of resorption pressure sensor II 7 and upper cavity pressure sensor II 8 are installed on the amplitude oil cylinder I 6, cavity of resorption pressure sensor III9 and upper cavity pressure sensor III10 are installed on the amplitude oil cylinder II 1, angular transducer I 12 is installed on the fixed arm 13, displacement pickup 17 is installed on the telescopic boom III16, angular transducer II 18 is installed on the inner arm 19, and the multi-turn potentiometer 20 that is installed on the turning gear 21 is connected with Single Chip Microcomputer (SCM) system 4; Be used to measure the rotary position of upper frame part; Be installed on the supporting leg case 23 and Single Chip Microcomputer (SCM) system 4 bonded assembly warning devices 22, report to the police when being used to exceed support zone or support oil cylinder minimum pressure.
As shown in Figure 2, Single Chip Microcomputer (SCM) system 4 is working centres of this control setup, and control command is sent by it.Cavity of resorption pressure sensor I 1, upper cavity pressure sensor I 2, cavity of resorption pressure sensor II 7, upper cavity pressure sensor II 8, cavity of resorption pressure sensor III 9, upper cavity pressure sensor III 10, angular transducer I 12, displacement pickup 17, angular transducer II 18, warning device 22, multi-turn potentiometer 20 and switch valve all are connected with Single Chip Microcomputer (SCM) system 4.Single Chip Microcomputer (SCM) system can be according to support zone, the support oil cylinder minimum pressure P of input
MinAnd the data of cavity of resorption pressure sensor I, II, III and upper cavity pressure sensor I, II, III, angular transducer I, II and the transmission of multi-turn potentiometer, calculate the car load center-of-gravity position and judge whether whether it exceed support zone and support oil cylinder pressure less than P
Min, and send control signal according to judged result and give switch valve or warning device, prevent that car load from tumbling.
Before work, need to give Single Chip Microcomputer (SCM) system 4 input support zones, support oil cylinder minimum pressure P
Min, Single Chip Microcomputer (SCM) system 4 is calculated the car load center-of-gravity position according to each relevant data of cavity of resorption pressure sensor I 1, II 7, III 9 and upper cavity pressure sensor I 2, II 8, III 10, angular transducer I 12,20 transmission of II 18 multi-turn potentiometers.
After Single Chip Microcomputer (SCM) system calculates the position of car load center of gravity, compare with support zone, if the car load center of gravity is in support zone, then master cock valve 5 makes lorry-mounted crane proceed actions such as luffing, revolution, otherwise, then send control command and cut off hydraulic circuit, actions such as lorry-mounted crane luffing, revolution are stopped, and send the alarm signal, and guarantee the safety of complete machine, prevent overthrow accident.
In addition, according to the data of cavity of resorption pressure sensor I 1 and 2 inputs of upper cavity pressure sensor I, whether the pressure of judging support oil cylinder 3 is less than P simultaneously for Single Chip Microcomputer (SCM) system
Min, if less than P
MinThen send control command and cut off hydraulic circuit, actions such as lorry-mounted crane luffing, revolution are stopped, and send the alarm signal.Otherwise then master cock valve 5 makes lorry-mounted crane proceed actions such as luffing, revolution.
Claims (1)
1. lorry-mounted crane anti-tilting apparatus is characterized in that: comprising:
---Single Chip Microcomputer (SCM) system (4) and with Single Chip Microcomputer (SCM) system (4) bonded assembly switch valve (5);
2 cavity of resorption pressure sensor I (1) that---respectively is installed on 2 support oil cylinders (3) are connected with Single Chip Microcomputer (SCM) system (4) with 2 upper cavity pressure sensor I (2);
Cavity of resorption pressure sensor II (7) on---the be installed in amplitude oil cylinder I (6) is connected with Single Chip Microcomputer (SCM) system (4) with upper cavity pressure sensor II (8);
Cavity of resorption pressure sensor III (9) on---the be installed in amplitude oil cylinder II (11) is connected with Single Chip Microcomputer (SCM) system (4) with upper cavity pressure sensor III (10);
Angular transducer I (12) on---the be installed in fixed arm (13) is connected with Single Chip Microcomputer (SCM) system (4);
Displacement pickup (17) on---the be installed in telescopic boom III (16) is connected with Single Chip Microcomputer (SCM) system (4);
Angular transducer II (18) on---the be installed in inner arm (19) is connected with Single Chip Microcomputer (SCM) system (4);
Multi-turn potentiometer (20) on---the be installed in turning gear (21) is connected with Single Chip Microcomputer (SCM) system (4);
---be installed in supporting leg case (23) is gone up and Single Chip Microcomputer (SCM) system (4) bonded assembly warning device (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202326908U CN201647861U (en) | 2009-09-14 | 2009-09-14 | Anti-overturning device for lorry-mounted crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202326908U CN201647861U (en) | 2009-09-14 | 2009-09-14 | Anti-overturning device for lorry-mounted crane |
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| Publication Number | Publication Date |
|---|---|
| CN201647861U true CN201647861U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202326908U Expired - Fee Related CN201647861U (en) | 2009-09-14 | 2009-09-14 | Anti-overturning device for lorry-mounted crane |
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| CN102225732A (en) * | 2011-06-13 | 2011-10-26 | 徐州昊意工程机械科技有限公司 | Multifunctional emergency rescue fire-fighting crane |
| CN102303496A (en) * | 2011-06-03 | 2012-01-04 | 陈海波 | Tire liftoff detection control system for launch vehicle |
| CN102502405A (en) * | 2011-10-31 | 2012-06-20 | 徐州重型机械有限公司 | Boom angle detecting device, detection method and crane comprising detecting device |
| CN102514550A (en) * | 2011-12-20 | 2012-06-27 | 长沙中联消防机械有限公司 | Engineering machinery and safety state determining method, device and system thereof |
| CN102653380A (en) * | 2012-04-17 | 2012-09-05 | 中国人民解放军总后勤部建筑工程研究所 | Torque limiting system of folding-arm type lorry-mounted crane |
| CN102826469A (en) * | 2012-08-24 | 2012-12-19 | 三一重工股份有限公司 | Anti-overturning device and engineering machine |
| WO2013007069A1 (en) * | 2011-07-14 | 2013-01-17 | 中联重科股份有限公司 | Pump truck and method and device for controlling same |
| CN103086285A (en) * | 2013-01-21 | 2013-05-08 | 三一帕尔菲格特种车辆装备有限公司 | Tipping prevention device, engineering machinery and tipping prevention method |
| WO2013063998A1 (en) * | 2011-11-02 | 2013-05-10 | 中联重科股份有限公司 | Rollover prevention method and system for crane |
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| CN103345819A (en) * | 2013-07-16 | 2013-10-09 | 中联重科股份有限公司 | Vehicle rollover early warning system, vehicle rollover early warning method and engineering machine comprising vehicle rollover early warning system |
| CN103588116A (en) * | 2013-11-12 | 2014-02-19 | 中联重科股份有限公司 | Crane calibration device, method and system as well as engineering machinery |
| CN103764539A (en) * | 2011-08-31 | 2014-04-30 | 赫思曼自动化控制有限公司 | Load measurement on the load receiver of hoisting devices |
| CN104340889A (en) * | 2014-10-31 | 2015-02-11 | 徐工集团工程机械股份有限公司 | Crane and amplitude variable system thereof |
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| CN104691519A (en) * | 2015-01-16 | 2015-06-10 | 江苏建筑职业技术学院 | Anti-rollover mechanism and system for truss type bridge inspection vehicle |
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