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Patent Searching and Data


Title:
LIFTING SYSTEM AND LARGE MINING EXCAVATOR
Document Type and Number:
WIPO Patent Application WO/2021/008449
Kind Code:
A1
Abstract:
The invention discloses a lifting system and a large mining excavator. The lifting system comprises: a winding plant, comprising: a winding drum, a motor provided at an outer portion of the winding drum, and a speed reducer provided at an outer portion of the winding drum, an output shaft of the motor connected to the speed reducer, the speed reducer connected to the winding drum, and the speed reducer driven by the motor to drive the winding drum to rotate; a head sheave mounted on a jib of an excavator; a movable pulley mounted on a bucket of the excavator and located below the head sheave; a lifting cable wound around the winding drum and passing by the head sheave and the movable pulley, such that the winding drum rotates to drive the lifting cable to lift the movable pulley and the bucket. The large mining excavator comprises a jib, a bucket, and the lifting system. Compared with the prior art, the motor and the speed reducer of the invention has low torque, such that the motor and the speed reducer are smaller in volume.

Inventors:
WANG QINGLING (CN)
Application Number:
PCT/CN2020/101289
Publication Date:
January 21, 2021
Filing Date:
July 10, 2020
Export Citation:
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Assignee:
BEIJING DASHENG GEER METALLURGICAL EQUIPMENT CO LTD (CN)
International Classes:
B66D1/20; B66D1/12; E02F3/46
Foreign References:
CN210340160U2020-04-17
DE1907529A11970-09-03
GB383881A1932-11-24
GB627663A1949-08-12
GB257044A1926-08-26
US20140219763A12014-08-07
CN101913539A2010-12-15
CN109706990A2019-05-03
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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