Title:
CHAIN TENSION BALANCE CONTROL SYSTEM AND METHOD FOR PERMANENT-MAGNET-DRIVEN MINING SCRAPER CONVEYOR
Document Type and Number:
WIPO Patent Application WO/2021/068473
Kind Code:
A1
Abstract:
Disclosed are a chain tension balance control system and method for a permanent-magnet-driven mining scraper conveyor. A shaft I of a tail chain wheel I (14) and a shaft II of a tail chain wheel II (15) are separately arranged; two servo driving hydraulic cylinders are arranged in parallel on a base (29) of a scraper machine; scraper chain strain gages are mounted on some chain links of scraper chains (5); displacement sensors are arranged in both of the two servo driving hydraulic cylinders; the position where each servo driving hydraulic cylinder is connected to a corresponding tail chain wheel is provided with a pull and pressure sensor; and a scraper chain tension signal, displacement signals of the two servo driving hydraulic cylinders, and pull and pressure signals of the two servo driving hydraulic cylinders are respectively transmitted to a chain tension balance control module (28), and the chain tension balance control module (28) calculates a control current according to a preset program and outputs a control current to servo valves of the two servo driving hydraulic cylinders. By means of the chain tension balance control system and method for a permanent-magnet-driven mining scraper conveyor, the problem of imbalance between the tension of two scraper chains (5) during the working process of a scraper machine is effectively solved, and meanwhile, the tension distribution condition of the whole scraper chain (5) is monitored in real time, thereby improving the working efficiency.
Inventors:
LI XIANG (CN)
SHEN GANG (CN)
ZHU ZHENCAI (CN)
TANG YU (CN)
PENG YUXING (CN)
LU HAO (CN)
CAO GUOHUA (CN)
ZHOU GONGBO (CN)
LI WEI (CN)
JIANG FAN (CN)
SHEN GANG (CN)
ZHU ZHENCAI (CN)
TANG YU (CN)
PENG YUXING (CN)
LU HAO (CN)
CAO GUOHUA (CN)
ZHOU GONGBO (CN)
LI WEI (CN)
JIANG FAN (CN)
Application Number:
PCT/CN2020/084208
Publication Date:
April 15, 2021
Filing Date:
April 10, 2020
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
JIANGSU TIANMING MACHINERY GROUP CO LTD (CN)
JIANGSU TIANMING MACHINERY GROUP CO LTD (CN)
International Classes:
B65G19/18; B65G19/20; B65G43/00
Foreign References:
| CN110758990A | 2020-02-07 | |||
| CN110092140A | 2019-08-06 | |||
| CN109720786A | 2019-05-07 | |||
| US5143206A | 1992-09-01 | |||
| CN107187799A | 2017-09-22 | |||
| KR20140042078A | 2014-04-07 | |||
| CN107555082A | 2018-01-09 |
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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