Crank arm type aerial work platform

Abstract

The invention relates to a crank arm type aerial work platform. The crank arm type aerial work platform comprises a traveling chassis, a driving device and a lifting device. The lifting device comprises a lifting arm assembly and a working platform. The lifting arm assembly comprises a folding arm assembly, a telescopic arm assembly and a four-bar linkage leveling arm assembly. The working platform is further provided with a horizon sensor. According to the aerial work platform, it can be guaranteed that the work platform is maintained to be balanced in the lifting process all the time. In addition, on the basis of guaranteeing the stability, the lifting height of the work platform is increased, the function of aerial horizontal swinging adjusting of the work platform is also additionally provided, and entire use is more flexible. In addition, the entire driving device of the crank arm type aerial work platform can rotate, the work platform is driven to rotate, and the working radius is increased.

Description

technical field [0001] The invention relates to an articulating arm type aerial work platform. Background technique [0002] Aerial work platform is a product that serves mobile high-altitude operations such as aerial work, equipment installation, and maintenance in various industries. The related products of aerial work platforms mainly include: scissor-type aerial work platforms, vehicle-mounted aerial work platforms, articulating-arm aerial work platforms, self-propelled aerial work platforms, aluminum alloy aerial work platforms, and cylinder-type aerial work platforms. [0003] The articulating arm lifting device of the aerial work platform is to hinge the multiple connecting arms together through the connecting piece in turn, and the connecting arm is lifted by the cylinder or the oil cylinder to make it tilt upward, so as to realize the purpose of lifting the working platform, but the existing When the connecting arm of the special crank-arm lifting device is raised ...

AI Technical Summary

Problems solved by technology

[0003] The articulating arm lifting device of the aerial work platform is to hinge the multiple connecting arms together through the connecting piece in turn, and the connecting arm is lifted by the cylinder or the oil cylinder to make it tilt upward, so as to realize the purpose of lifting the working platform, but the existing When the connecting arm is raised or lowered, the tilting and shaking of the platform is relatively large, which is not conducive to the safety of the operator.

[0004] Since the lifting of the crank arm type aerial work platform is completely driven by the cylinder or the oil cylinder, the rising height of the work platform is limited by the connecting arm. The higher the height, the larger the volume of the connecting arm, and the higher the requirements for the air cylinder or oil cylinder. The high-altitude stability of the platform is also worse, so how to increase the lifting height of the existing articulating-arm type aerial work platform without increasing the equipment cost and volume, and ensure the high-altitude stability of the work platform has become a problem for those skilled in the art. Urgent problems

[0005] In addition, in order to ensure the safety of high-altitude operations, the working platform of the existing crank-arm type aerial work platform generally adopts a fixing method directly hinged at the end of the connecting arm, so that the fine-tuning of the position of the working platform cannot be performed at high altitude, and the working platform The horizontal tilt adjustment is only adjusted by the oil cylinder or cylinder, the adjustment accuracy is not high, and the use is not flexible

[0006] In order to ensure the stability and operational safety of aerial work, the existing articulating-arm aerial work platform adopts a fixed connection between the drive device and the chassis. This structure greatly reduces the working radius of the aerial work platform. If it is not stopped properly, the position of the platform cannot be adjusted in the horizontal direction when the working platform is raised later, or the adjustment range is small, and the use is not flexible

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