Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
TWIN-HEAD DRUM CUTTER AND EXCAVATOR COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2021/215862
Kind Code:
A1
Abstract:
The present invention relates to a twin-head drum cutter and an excavator comprising same, the twin-head drum cutter comprising: a connection frame connected to an arm of the excavator; a hydraulic motor which is detachably installed in the connection frame and is driven by hydraulic pressure; a pair of rotating drums respectively installed at opposite sides of the front end of the connection frame so as to be simultaneously rotated by the hydraulic motor; and a plurality of cutters arranged on each of the rotating drums spirally from the center of rotation. According to the present invention, because an effective arrangement structure of cutters and effective power usage of the hydraulic motor are enabled, as well as the drum cutter of the excavator being provided as a twin type, a strong crushing force can be generated and the operating efficiency can be improved. In addition, the excavator is not only used for various purposes such as profiling, trenching, soft rock crushing, quarry work, demolition, etc., but also may have excellent availability because a strength range of an object to be worked is wide as compared with a bucket, a hydraulic breaker, etc. In addition, a prefabricated assembly structure in which the hydraulic motor is easily replaced is provided, and thus, the time and costs for maintenance and repair can be reduced.

Inventors:
KWON DAE RYUK (KR)
Application Number:
PCT/KR2021/005135
Publication Date:
October 28, 2021
Filing Date:
April 23, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KWON DAE RYUK (KR)
International Classes:
E21D9/10; E02F3/96; E21B10/46
Domestic Patent References:
WO2012045327A12012-04-12
Foreign References:
KR200145137Y11999-06-15
KR20050057836A2005-06-16
US20170211384A12017-07-27
JP2016108731A2016-06-20
Attorney, Agent or Firm:
YANG, Heui Young (KR)
Download PDF: