Title:
METHOD FOR AUTOMATICALLY CONTROLLING TRACTION SPEED OF COAL CUTTER ON THE BASIS OF COAL WALL CAVING DEGREE
Document Type and Number:
WIPO Patent Application WO/2021/068503
Kind Code:
A1
Abstract:
Disclosed is a method for automatically controlling the traction speed of a coal cutter on the basis of a coal wall caving degree, relating to the technical field of coal cutter control. The control method comprises: an image collection unit performing feature extraction on feature vectors, reflecting a coal wall caving degree, in an image to realize the online evaluation of the coal wall caving degree; generating a current control instruction for a coal cutter on the basis of an online evaluation result; and transmitting same to a machine-mounted control unit (6) of the coal cutter to realize the automatic adjustment of the traction speed of the coal cutter. The traction speed of a coal cutter is automatically adjusted on the basis of a coal wall caving degree; and when the coal wall caving degree is high, a coal output from a roller is reduced by means of reducing a traction speed, such that a sudden change of a load on a scraper conveyer caused by coal wall caving is relieved, thereby increasing the service life of a driving electric motor, reducing the volatility of a power grid in a mining area, and ensuring the production safety of a whole fully mechanized coal mining face.
Inventors:
SI LEI (CN)
WANG ZHONGBIN (CN)
TAN CHAO (CN)
YAN HAIFENG (CN)
LIU XINHUA (CN)
LU XULIANG (CN)
WEI DONG (CN)
LIU SONGYONG (CN)
JIANG HONGXIANG (CN)
XU SHAOYI (CN)
TONG KUANGWEI (CN)
WANG ZHONGBIN (CN)
TAN CHAO (CN)
YAN HAIFENG (CN)
LIU XINHUA (CN)
LU XULIANG (CN)
WEI DONG (CN)
LIU SONGYONG (CN)
JIANG HONGXIANG (CN)
XU SHAOYI (CN)
TONG KUANGWEI (CN)
Application Number:
PCT/CN2020/089544
Publication Date:
April 15, 2021
Filing Date:
May 11, 2020
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
XUZHOU GOLDFLUID HYDRAULIC TECH DEVELOPMENT CO LTD (CN)
XUZHOU GOLDFLUID HYDRAULIC TECH DEVELOPMENT CO LTD (CN)
International Classes:
E21C35/24
Foreign References:
| CN110685685A | 2020-01-14 | |||
| CN104373153A | 2015-02-25 | |||
| CN109113741A | 2019-01-01 | |||
| CN108374659A | 2018-08-07 | |||
| JP2005068893A | 2005-03-17 |
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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