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Tension control method and device for scraper conveyor

A technology of scraper conveyor and control method, which is applied in the direction of conveyor control devices, transportation and packaging, conveyors, etc., and can solve problems such as chain fatigue, easy chain jamming, and damaged sprockets

Active Publication Date: 2019-11-19
QINGDAO CCS ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the fact that the tension control in the prior art cannot be adjusted appropriately according to the load, resulting in unstable deformation of the chain, and the problems of easy chain jamming, chain breakage or damage to the sprocket. If the tension of the chain is too large, the long Excessive tension over time will lead to chain fatigue and shorten the life of the chain. A tension control method for scraper conveyors is proposed to solve the above problems

Method used

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  • Tension control method and device for scraper conveyor
  • Tension control method and device for scraper conveyor

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Embodiment 1

[0036] Embodiment 1. This embodiment proposes a tension control method for scraper conveyors, such as figure 1 shown, including the following steps:

[0037] The parameter acquisition step is to acquire the tension control mode set by the user and the torque of the tail drive motor;

[0038] The tension control step is to perform corresponding control according to the set tension control mode, wherein the tension control mode is a stroke adjustment mode or a tension adjustment mode, the stroke adjustment mode is to adjust the stroke of the hydraulic cylinder according to the torque, and the tension adjustment mode The tension is adjusted according to the torque, and the tension is the pulling force of the oil cylinder on the chain, which reflects the tension force of the tensioning oil cylinder on the chain. This control method is adjusted through torque. Because different stages and conveyor loads are different, it specifically reflects the difference in torque. Therefore, i...

Embodiment 2

[0060] Embodiment 2, this embodiment proposes a scraper conveyor tension control device, such as figure 2 shown, including:

[0061] The tension detection element is arranged on the tail hydraulic oil cylinder and is used to detect the pressure of the chain on the oil cylinder;

[0062] A stroke detection element, which is arranged on the tail hydraulic cylinder, is used to detect the stroke of the hydraulic cylinder;

[0063] The tension control module is connected to the controller of the scraper conveyor through the can bus, and is used to receive the parameters sent by the controller of the scraper conveyor, and execute the tension control step, which is mainly used to control the stroke of the tension cylinder or tension;

[0064] The parameters sent by the scraper conveyor controller include at least: the tension control signal, the torque of the tail drive motor, and the torque of the tail drive motor can also be replaced by the torque percentage of the tail drive mo...

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Abstract

The invention discloses a tension control method and device for a scraper conveyor. The tension control method includes the following steps that a parameter acquisition step is carried out, specifically, a tension control mode set by a user and torque of a machine tail driving motor are obtained; and a tension control step is carried out, the corresponding control is carried out according to the set tension control mode, the tension control mode is a stroke adjustment mode or a tension adjustment mode, the stroke adjustment mode adjusts stroke of a hydraulic cylinderaccording to the torque, and the tension adjustment mode adjusts tension according to the torque. According to the tension control method and device for the scraper conveyor, the load condition is directly reflected according to the torque of the machine tail driving motor, the tension or stroke of a tension cylinder is adjusted dynamically according to the load, so that the scraper conveyor is always kept at an appropriatetension value during transportation, finally a chain is kept in a reasonable deformation range, the problems of chain clamping, chain breaking or damage to a chain wheel are solved, and the problem of reducing the service life of the chain due to excessive tension is solved.

Description

technical field [0001] The invention belongs to the field of fully mechanized mining equipment control in coal mines, in particular to a tension control method and a control device for a scraper conveyor. Background technique [0002] The tension control methods of the existing coal mine underground scraper conveyor mainly include: 1. The tension calibration setting is performed according to the preset pre-tension force. Coal stacking, stuck chains, etc.), the chain load of the conveyor varies greatly, resulting in unstable deformation of the chain, which is reflected in the large change in the tension of the tensioning oil cylinder at the tail. If the chain is loose due to the excessive deformation of the chain, and the chain hangs severely at the nose or tail of the machine, it will cause a chain jam accident, and in severe cases, the chain may be broken or the sprocket may be damaged. On the contrary, if the tension of the chain is too large, the long-term tension will c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G23/44B65G43/02B65G19/18
CPCB65G19/18B65G23/44B65G43/02B65G2203/0266
Inventor 韩宁沈宜敏宋承林杨绪峰刘锡安
Owner QINGDAO CCS ELECTRIC CORP
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