Excavator with long acting arm

Abstract

The invention discloses an excavator with a long acting arm. The excavator comprises a vehicle body, a cab, a rotary table and a long acting arm rest. The rotary table is arranged at the upper portion of the vehicle body. The long acting arm rest comprises a movable arm, a bucket rod and a bucket, wherein the movable arm comprises two integrated parts, the first part is hinged to the rotary table, a movable arm oil cylinder used for providing power for the movable arm is arranged between the first part and the rotary table, and the second part is of a telescopic structure; the bucket rod is of a telescopic structure, one end of the bucket rod is a fixed end, the other end of the bucket rod is a free telescopic end, the fixed end is hinged to the second part of the movable arm, and a bucket rod oil cylinder used for providing power for the bucket rod is arranged between the second part and the bucket rod; the bucket is hinged to the free telescopic end of the bucket rod and a first telescopic oil cylinder used for providing power for the bucket is arranged between the bucket and the fixed end of the bucket rod, so that the bucket and the free telescopic end conduct telescopic motion relative to the bucket rod. By the adoption of the excavator with the long acting arm, the moving range of the excavator is enlarged through the telescopic movable arm and the bucket rod and the work efficiency of the excavator is improved.

Description

technical field [0001] The present invention relates to an excavator, and more particularly, the present invention relates to a long reach boom excavator. Background technique [0002] An excavator is an earthmoving machine that uses a bucket to excavate materials higher or lower than the bearing surface, and loads them into transport vehicles or unloads them to the stockyard. It is widely used in highway, railway and other road construction, bridge construction, urban construction, airport port and water conservancy construction. Excavators currently used generally include two-section arms of boom and stick. Usually, the length of the boom and stick is fixed, which cannot be carried out according to specific conditions. This limits the scope of application of the excavator, and depends on the length of the excavator. Car body movement can solve this problem, but in the working environment, the car body of the excavator has the problem of difficulty or slow movement, so the...

AI Technical Summary

Problems solved by technology

Excavators currently used generally include two-section arms of boom and stick. Usually, the length of the boom and stick is fixed, which cannot be carried out according to specific conditions. This limits the scope of application of the excavator, and depends on the length of the excavator. The movement of the car body can solve this problem, but in the working environment, the car body of the excavator has the problem of difficulty or slow movement, so the work efficiency of the excavator is low

Images