Excavating machine
AssigneesKyeongrae JEONG, Kyungwontech Co., Ltd.
InventorKyeongrae JEONG
Life of this patent
Estimating the term…
Abstract
Proposed is an excavating apparatus including a lower arm having a width that is gradually increased from one end to the other end, and a fixing hole formed in the outer peripheral surface at the other end, a rotational arm stand which is located on the other end of the lower arm, is formed in a disc shape, and is rotatably fixed to the lower arm, an upper arm which is fixed to the rotational arm stand, and has a guide hole in the outer peripheral surface thereof, a center joint which is surrounded by the lower arm, the rotational arm stand, and the upper arm, and is exposed to outside via the fixing hole of the lower arm and the guide hole of the upper arm, and a slip ring which is inserted into or separated from the center joint via the guide hole of the upper arm.
Claims27
An excavating apparatus, comprising:
- a lower arm having a width that gradually increases from a first end to a second end and a fixing hole on an outer peripheral surface at the second end;
- a rotational arm stand located on the second end of the lower arm, having a disc shape, and rotationally fixed to the lower arm;
- an upper arm located on the rotational arm stand to be fixed to the rotational arm stand, and having a guide hole in an outer peripheral surface thereof on the rotational arm stand;
- a center joint which is surrounded by the lower arm, the rotational arm stand, and the upper arm, and is exposed to outside via the fixing hole of the lower arm and the guide hole of the upper arm;
- and
- a slip ring which is inserted into or separated from the center joint via the guide hole of the upper arm,
- wherein, in appearance, a width of a central space between the upper arm and the center joint is larger than diameters of two hydraulic lines based on a top of the center joint in the guide hole of the upper arm.
An excavating apparatus, comprising:
- a bucket, a lower arm, a rotational arm stand, an upper arm, and a boom, which are sequentially arranged toward a cab and rotated with respect to each other at a work site;
- and
- a bucket cylinder and an arm cylinder located around the lower arm and the boom and rotationally coupled to the bucket and the upper arm, respectively,
- wherein when the upper arm has a boom coupling hole part and an arm cylinder coupling hole part, which are sequentially positioned on the rotational arm stand, the lower arm is located on a central axis of the upper arm, which passes perpendicularly through the arm cylinder coupling hole part of the upper arm and overlaps more than half a length of the lower arm;
- the upper arm protrudes the boom coupling hole part further than the rotational arm stand toward a side of the upper arm just above the rotational arm stand;
- and the bucket cylinder is rotatably attached to the lower arm by means of opposite sides of the bucket cylinder.
Dependencies are inferred from the claim text.