02-05-2019 дата публикации
Номер: WO2019080897A1
Принадлежит:
A rock breaking device, comprising: a large arm (2), comprising a first large arm end (20), a second large arm end (21) and a first hinge part (28); a small arm (3), comprising a first small arm end (36), a second small arm end (37) and a second hinge part (33); a ripper (6), comprising a third hinge part (63) and being divided into a first ripping part (61) that is close to a tip (72) of the ripper (6) and a second ripping part (62) that is connected to the first ripping part (61); a first hydraulic cylinder (4); and a second hydraulic cylinder (5); a first large arm end (20) is configured to connect to a carrier, while a second large arm end (21) is hinged with the second hinge part (33); an end of the first hydraulic cylinder (4) is hinged with the first hinge part (28), and another end of the first hydraulic cylinder (4) is hinged with a first small arm end (36), while a second small arm end (37) is hinged with the third hinge part (63); an end of the second hydraulic cylinder (5) is ...
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