Weighing and protecting device for bridge detection vehicle work platform
A bridge inspection vehicle and working platform technology, which is applied to bridges, bridge parts, bridge construction, etc., can solve the problem that the fixed arm of the working platform and the load moment of the telescopic arm cannot effectively detect vehicles, and achieve the effect of avoiding vehicle instability.
Inactive Publication Date: 2017-04-26
ZHENGZHOU YUTONG HEAVY IND
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Problems solved by technology
[0003] The purpose of the present invention is to provide a weighing protection device for the working platform of the bridge inspection vehicle, which is used to solve the load force on the fixed arm and the telescopic arm of the working platform or a certain position when the telescopic arm of the working platform is at different positions and different angles. The technical problems of the safety of personnel, equipment and the vehicle itself on the working platform caused by the inability to effectively detect the load moment
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[0019] The present invention will be further described below in conjunction with embodiment (accompanying drawing).
[0020] Such as figure 1 , 4 As shown, the bridge inspection vehicle working platform weighing protection device of the present invention includes a human-machine interface 1, a controller 2, and a limit switch 3 combined in an electrical connection mode, which are used to directly replace the original structural parts of the bridge inspection vehicle working platform. Pins 4ˊ, 5ˊ, 6ˊ, 7ˊ (see figure 2 , 3 shown) four pin sensors and four AD conversion modules 4, 5, 6, 7, power supply module, dangerous direction unloading valve 8, sound and light buzzer 9, three-color lamp 10; The interface 1 communicates with the controller 2 through a serial port, the pin sensors are respectively connected to the corresponding input terminals of the controller 2 through corresponding ADAD conversion modules, and the limit switch 3 is connected to the corresponding input te...
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The invention discloses a weighing and protecting device for a bridge detection vehicle work platform. The device comprises a man-machine interface, a controller, a limit switch, n pin shaft sensors, a power supply module, AD conversion modules, a dangerous direction unloading valve, an acousto-optical buzzer, and a tricolor lamp, wherein the man-machine interface, the controller and the limit switch are combined in an electric connection mode; and the n pin shaft sensors are used for directly replacing pin shafts in an existing structural piece of the bridge detection vehicle work platform, and n is an integer no smaller than one and no larger than four. The man-machine interface communicates with the controller through a serial port. The pin shaft sensors are separately accessed to the corresponding input ends of the controller through the corresponding AD conversion modules. The limit switch is accessed to the corresponding input end of the controller. The tricolor lamp, the acousto-optical buzzer and the dangerous direction unloading valve are separately connected with corresponding output ports of the controller. By adoption of the weighing and protecting device, the value of torque or loading force on the work platform can be detected in real time, different signals can be given out, the vehicle unstable phenomenon caused by an excessive load can be effectively avoided, and the safety of personnel, equipment and vehicles on the work platform is ensured.
Description
technical field [0001] The invention relates to a technology for dual measurement of load moment and force of a working platform and its overload protection, in particular to a weighing protection device for a working platform of a bridge inspection vehicle. Background technique [0002] During the working process of the bridge inspection vehicle, first of all, the safety of personnel and equipment on the working platform must be ensured, and secondly, the smooth operation of the bridge inspection vehicle and the safety of each structural part must be ensured. When the telescopic arm of the working platform is in the fully retracted position, by measuring the load force of the working platform, it can be ensured that the entire load of the working platform is within the allowable range, and it can also be ensured that the working platform is in the range of 0 degrees to 180 degrees in the entire second rotation. The overturning moment of the whole vehicle is also within the ...
Claims
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IPC IPC(8): E01D19/10
CPCE01D19/106
Inventor 郭旭东张哲诚王海米增雨冯钦李文杰刘世亮
Owner ZHENGZHOU YUTONG HEAVY IND