Rotating mechanism for excavator working device

Abstract

The invention discloses a rotating mechanism for an excavator working device, and relates to a mechanically driven excavator. The rotating mechanism comprises a moving arm, a moving arm oil cylinder, a gear shaft, a rack, a rotating oil cylinder, a rotating arm, a bucket rod oil cylinder, a bucket rod, a bucket oil cylinder, a swing rod, a connecting rod, a bucket and two guide sleeves, wherein the rotating oil cylinder drives a piston rod part of the rotating oil cylinder to drive the rack to slide along the two guide sleeves; the rack slides from one end to the other end to drive the gear shaft to rotate from -90 degrees to +90 degrees; the rack is meshed with the gear shaft and drives the gear shaft to rotate; the gear shaft drives the rotating arm to rotate, so that the excavator working device rotates. Under the condition that an excavator body does not rotate, the rotating mechanism can drive the working device to rotate, and the working device can bypass an obstacle through rotation, so that the shortcoming that the conventional excavator cannot work normally under the working conditions that the excavator body cannot rotate due to a relatively narrow space of a working site, the obstacle blocks the excavator, and the excavator cannot work in severe environments with trenches is overcome.

Description

technical field [0001] The technical solution of the present invention relates to a mechanically driven excavator, in particular to a rotating mechanism of the working device of the excavator. Background technique [0002] With the wide application of construction machinery in construction sites, mechanically driven excavators have replaced manual excavators. In order to adapt to the various new needs that continue to emerge during use, mechanically driven excavators are also constantly improving and innovating. A device for expanding the rotation angle of an excavator disclosed in CN2732840 and a device for expanding the rotation angle of an excavator arm disclosed in CN2732841 are all excavators for operating in a wide space at a work site. However, existing excavators cannot work normally in harsh environments such as the relatively narrow excavator body in the workplace where the space cannot be rotated, obstacles are blocked, and ditches are restricted. Contents of t...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a rotating mechanism for the working device of an excavator, which can realize the rotation of the working device without rotating the body of the excavator, and can also bypass obstacles through rotation, which overcomes the existing problems. Some excavators are unable to work normally in harsh environments such as the narrow space of the working site, the body of the excavator cannot rotate, obstacles are blocked, and ditches are restricted.

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