Title:
CONICAL DRUM CUTTER AND EXCAVATOR HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2021/215861
Kind Code:
A1
Abstract:
The present invention relates to a conical drum cutter and an excavator having same, the drum cutter comprising: a connecting frame connected to the arm of an excavator; a hydraulic motor separably mounted within the connecting frame, and driven by means of hydraulic pressure; a rotary drum which is provided at the front end of the connecting frame so as to be rotated by means of the hydraulic motor and which is formed in a conical shape; and a plurality of cutters aligned on the rotary drum in a spiral shape from the center of rotation. According to the present invention, the excavator drum cutter is formed in a conical shape, and enables an efficient arrangement structure of the cutters and the efficient use of power of the hydraulic motor so as to generate strong crushing force, and thus can improve work efficiency, and can be used for a variety of uses such as profiling, trenching, soft rock crushing, rock mountain work, and dismantlement, has a wide operational strength range and excellent usability in comparison with a bucket, a hydraulic breaker or the like, and provides a prefabricated assembly structure having an easily-replaceable hydraulic motor, thereby enabling the time and costs required for maintenance and repair to be reduced.
Inventors:
KWON DAE RYUK (KR)
Application Number:
PCT/KR2021/005134
Publication Date:
October 28, 2021
Filing Date:
April 23, 2021
Export Citation:
Assignee:
KWON DAE RYUK (KR)
International Classes:
E21D9/10; E02F3/96; E21B10/46
Foreign References:
| KR101640311B1 | 2016-07-15 | |||
| KR102073568B1 | 2020-02-05 | |||
| US5662387A | 1997-09-02 | |||
| KR20050057836A | 2005-06-16 | |||
| JP2011083861A | 2011-04-28 |
Attorney, Agent or Firm:
YANG, Heui Young (KR)
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