Construction machine

A technology for construction machinery and actuators, applied in the field of construction machinery with a stable monitoring system, can solve the problem of dust-proof, anti-pull, reduce the reliability of resistance sensing sheets, increase the difficulty of assembly and maintenance of construction machinery, and fail to detect the impact of supporting legs. problems such as force, so as to avoid the occurrence of vicious accidents, simple structure and avoid impact
CN101457589AActive Publication Date: 2009-06-17SANY AUTOMOBILE MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SANY AUTOMOBILE MFG CO LTD
Publication Date
2009-06-17

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Abstract

The invention discloses construction machinery, which comprises a chassis, a plurality of supporting legs and a stable monitoring system. The stable monitoring system comprises a plurality of sensors and controllers, wherein, the sensors can detect the forces on all the supporting legs and output signals to the controller according to different forces on the supporting legs, the controller can judge the force state of the construction mechanism based on signals sent by the sensor. If the construction machinery is in danger, corresponding measures can be taken by an actuator to ensure the safety of the construction machinery; the sensor can be a strain sensor, or a combination of the strain sensor and a displacement sensor, or a combination of the strain sensor and a proximity switch; the strain sensor is arranged on the outer surface of a cantilever of a bracket and outputs signals based on deformation of the cantilever of the bracket; the displacement sensor can output signals based on the fit clearance between the bottom side of a telescopic boom and a corresponding slideway of the bracket; the proximity switch can output signals based on the fit clearance between the bottom side of the telescopic boom and the corresponding slideway of the bracket.
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Description

technical field

[0001] The invention relates to a safety monitoring technology of a construction machine, in particular to a construction machine with a stability monitoring system. Background technique

[0002] At present, with the increasing attention to the safety of engineering construction, the application of modern control technology to monitor the status of construction machinery in real time has become an important part of various construction machinery.

[0003] Among various monitoring measures, the stability monitoring of construction machinery is an important part of monitoring technology. Taking the concrete pump truck as an example, it has a chassis, and a construction arm is arranged above the chassis. The construction arm can rotate around a vertical axis fixed on the chassis, and can deliver concrete to a high place or far away around the chassis. ; In the process of conveying concrete, there is a corresponding distance between the center of gravity of the ...

Claims

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