Displacement recognition system of belt conveyor telescopic head

Abstract

The invention relates to a displacement recognition system of a belt conveyor telescopic head. The displacement recognition system of the belt conveyor telescopic head comprises a ground subsystem, avehicle-mounted subsystem and a scale subsystem. The ground subsystem is provided with a scale analysis meter connected with a site upper machine and receives an electromagnetic signal of a scale in the scale subsystem; the vehicle-mounted subsystem is provided with a scale generating meter which is connected with a vernier pointer and gives the vernier pointer to generate the electromagnetic signal, the vernier pointer is arranged outside a vehicle body and in parallel to the scale in a non-contact installation mode, and a pointed position value at present is determined through the electromagnetic coupling mode with the scale; and the scale is installed on a single side edge of a moving track of a telescopic device of the belt conveyor head, or the scale is laid on the ground along the moving trajectory of the telescopic device of the belt conveyor head, or the scale is installed through a fence beside the track. The displacement recognition system of the belt conveyor telescopic headsends out instructs of moving, stopping and discharging to the vehicle-mounted subsystem according to the present position of the belt conveyor telescopic head, and coordinated transposition feedingto multipath transmission is achieved through the reciprocating movement of the belt conveyor telescopic head in the track direction.

Description

technical field [0001] The invention relates to the transportation of bulk materials, in particular to a displacement identification system for the telescopic head of a belt conveyor. Background technique [0002] The telescopic device at the head of the belt conveyor is arranged at the material transfer point of the conveying system to realize cross-transposition feeding for multi-channel conveying; it is mainly used for coal unloading devices or underground transfer stations, as well as transfer between coal plant transfer stations and coal hoppers The station is used as the cross-transposition of A and B belt conveyors. According to the needs of the technological process, there are three main parts of its use; 1): the cross operation of the coal unloading device and the system; 2): the cross operation of the belt conveyor in the coal plant and the system; 3): the belt conveyor between the system and the coal hopper Conveyor crossing operation. [0003] The on-site belt ...

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Problems solved by technology

[0004] (1) Since the control box is fixed on the telescopic device of the head of the belt conveyor, the operator must walk with the telescopic device of the head of the belt conveyor during operation, and the site environment is relatively harsh, which increases the labor intensity of the workers , affecting the occupational health of workers, and at the same time burying hidden dangers for safe production;

[0005] (2) The unloading point of multiple belt conveyors is on one platform. The operator needs to observe the unloading point of the conveyor with the naked eye, and communicate with the central control intercom to select the corresponding unloading belt. Choosing the wrong feeding point of the belt conveyor will increase the requirements for the operator, and it will easily cause stacking accidents and stringing accidents.

[0007] The limit switch used in the above method will have the following problems: first, it is easy to fail, and the working principle of the proximity switch or limit switch determines its poor reliability; Can't stop

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