Title:
LATTICE BOOM STRUCTURE AND CRANE
Document Type and Number:
WIPO Patent Application WO/2018/036181
Kind Code:
A1
Abstract:
Disclosed in the present invention are a lattice boom structure and a crane. The lattice boom structure comprises a connecting frame (1), a rotating frame (2), and a variable amplitude oil cylinder (3). The connecting frame (1) is rotationally connected to the rotating frame (2). One end of the variable amplitude oil cylinder (3) is rotationally connected to the connecting frame (1), the other end of the variable amplitude oil cylinder (3) is rotationally connected to the rotating frame (2), and the variable amplitude oil cylinder (3) bears a pressure. By means of the structure form of the pressure cylinder type lattice boom, the structures of the rotating frame and the connecting frame are changed, so that the variable amplitude oil cylinder can be disposed at the bottom and bears a pressure and does not bear a tensile force, and accordingly potential safety hazards caused by internal leakage of a hydraulic oil cylinder are avoided.
Inventors:
LU CHUAN (CN)
CAO LIFENG (CN)
CHEN ZHICAN (CN)
ZHANG PINGHAI (CN)
GU SISHENG (CN)
FU YUQIN (CN)
LI CHANGQING (CN)
YU JINGLI (CN)
CAO LIFENG (CN)
CHEN ZHICAN (CN)
ZHANG PINGHAI (CN)
GU SISHENG (CN)
FU YUQIN (CN)
LI CHANGQING (CN)
YU JINGLI (CN)
Application Number:
PCT/CN2017/081276
Publication Date:
March 01, 2018
Filing Date:
April 20, 2017
Export Citation:
Assignee:
XUZHOU HEAVY MACHINERY CO LTD (CN)
International Classes:
B66C23/66; B66C23/82
Foreign References:
| CN106241628A | 2016-12-21 | |||
| CN105060140A | 2015-11-18 | |||
| EP1477451B1 | 2007-02-28 | |||
| CN103626058A | 2014-03-12 | |||
| CN103318785A | 2013-09-25 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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