The structure of high-front shovel consists of the work jib,
extension jib, crude oil cylinder, working jib oil cylinder, digging bucket oil
cylinder and other parts. In the upper
body bucket, clearance fit with an extension jib, and under onside of the
extension jib connected to the cruel oil cylinder. The front of the extension
jib is connected to the clearance fit of the working arm by axis pin, and there
armed with a working jib oil cylinder between working jib and extension jib. In
the front of the working jib, there is an excavator bucket which is connected to
one side of the excavator bucket oil cylinder through connecting rod. The other
side of the excavator bucket oil cylinder is movable fitly connected with the
extension jib through connecting rod.
The advantages of excavator are as follow. For the
high degree of mechanization of high-front shovel, it has simple construction organization
with high construction efficiency and fast project progress. In order to ensure
the reliability of extension jib during the operation, the extension jib requires
high quality of excavator to better guarantee the quality of the construction
project. In the progress of operation, operators should keep as far as possible
away from the target to make sure safe work and reduce the risk and danger of
the construction process. High-front shovel can operate in a wide range and the
extension jib can extend to meet various construction requirements.
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