Chain tension balance control system and method of permanent magnet drive mining scraper conveyor
A technology of permanent magnet drive and conveyor chain, applied in the direction of conveyor control devices, conveyors, conveyor objects, etc., can solve the problem of unbalanced tension of two scraper chains, reduce downtime adjustment and maintenance time, Improve work efficiency and reduce floor space
Active Publication Date: 2020-02-07
CHINA UNIV OF MINING & TECH
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Problems solved by technology
[0004] In order to overcome the deficiencies of the prior art, the present invention provides a chain tension balance control system and method for permanent magnet-driven mining scraper conveyors, which can effectively solve the problem of unbalanced tension between the two scraper chains during the working process of the scraper conveyor, and at the same time Real-time monitoring of the tension distribution of the entire scraper chain to improve work efficiency
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[0030] The technical solutions in the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0031] like Figure 1 to Figure 3 As shown, a permanent magnet drive mining scraper conveyor chain tension balance control system includes a head sprocket one 2, a head sprocket two 4, a tail sprocket one 14 and a tail sprocket two 15, the machine Head sprocket 1 2 and tail sprocket 1 14 are connected to a scraper chain 5 at the same time, head sprocket 2 4 and tail sprocket 2 15 are connected to another scraper chain 5 at the same time, nose sprocket 1 2 It is coaxially connected with the head sprocket 2 4 on the same scraper machine head, the wheel shaft 1 of the tail sprocket 1 14 and the wheel shaft 2 of the tail sprocket 2 15 are set separately, and the base 29 of the scraper machine is parallel There are two servo-driven hydraulic cylinders, and the cylinder seats of servo-driven hydraulic cylinder 1 7 and serv...
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The invention discloses a chain tension balance control system and method of a permanent magnet drive mining scraper conveyor. A first wheel shaft of a first tail chain wheel and a second wheel shaftof a second tail chain wheel are separately arranged, and two servo drive hydraulic cylinders are arranged on a base of the scraper conveyor in parallel; scraper chain strain gages are installed on part of chain links of scraper chains; displacement sensors are arranged in the two servo drive hydraulic cylinders; pull pressure sensors are arranged at the connecting positions of the servo drive hydraulic cylinders and the corresponding tail chain wheels; and tension signals of the scraper chains, displacement signals and pull pressure signals of the two servo drive hydraulic cylinders are respectively transmitted to a chain tension balance control module, and then the chain tension balance control module calculates and outputs control current to servo valves of the two servo drive hydrauliccylinders according to a preset program. According to the control system and method, the problem that tension of the two scraper chains is unbalanced in the working process of the scraper conveyor iseffectively solved, the tension distribution condition of the whole scraper chains is simultaneously monitored in real time, and the working efficiency is improved.
Description
technical field [0001] The invention relates to the field of underground material transportation, in particular to a chain tension balance control system and method of a permanent magnet-driven mining scraper conveyor. Background technique [0002] Mine scraper conveyor is one of the key equipments of comprehensive mechanized coal mining face. Whether it can operate reliably, stably and efficiently will directly affect the safety and production capacity of modern coal mines. Mining scraper conveyors have harsh operating conditions, large load changes, and obvious random vibration and impact phenomena. The scraper chain is the component that most directly bears the load of coal falling. Therefore, the dynamic tension of the two scraper chains has time-varying characteristics and instantaneous The characteristics of high tension and difficult to control may easily cause the scraper chain to slack or even accumulate at the separation point of the drive sprocket, resulting in ac...
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IPC IPC(8): B65G19/18B65G19/20B65G43/00
CPCB65G19/18B65G19/20B65G43/00B65G2203/0266B65G2203/042
Inventor 李翔沈刚朱真才汤裕彭玉兴卢昊曹国华周公博李伟江帆
Owner CHINA UNIV OF MINING & TECH