A system for correcting the straightness of hydraulic support group in working face by using encoder
A hydraulic support and encoder technology, which is applied to mine roof support, mining equipment, earthwork drilling and other directions, can solve the problems of low system accuracy and cannot meet the fine operation of underground working face, etc., and achieves high measurement accuracy and small error. Effect
Active Publication Date: 2016-08-17
BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
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Problems solved by technology
[0003] At present, the working face of the hydraulic support manual system is all manually pushed or pulled by the hydraulic support on the working face to control the straightening of the scraper conveyor. A few systems that use sensors for straightness correction generally have low accuracy and cannot meet the needs of underground work. Facing the increasing requirements of fine operation
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[0013] The system described in the present invention will be further described in detail with the accompanying drawings.
[0014] For the convenience of description, only four hydraulic supports are shown in this embodiment, which are the first support, the second support, the third support and the fourth support are connected in sequence, and the front of each support is respectively connected to the chute, which are respectively the first chute, the third support and the fourth support. For the second chute, the third chute and the fourth chute, encoders are respectively installed in the middle of the adjacent chute to detect the front and rear positions of the adjacent support chute, which are respectively the first encoder, the second encoder and the third encoder, and the encoding The encoder can choose incremental encoder or absolute encoder.
[0015] Before moving on, as attached figure 1 As shown, each chute is flush. After the transition is over, see attached figu...
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A system using an encoder for calibrating the straightness of a working surface hydraulic support group comprises the encoder. The encoder is connected to two adjacent chutes of a scraper conveyor to measure the forth and back positions of adjacent hydraulic supports. The encoder can be an incremental encoder or absolute value encoder and is electrically connected to a working surface electro hydraulic control system. The encoder is adopted to measure the forth and back positions of the adjacent hydraulic supports, measuring accuracy is high, and errors are small; the encoder is sealed entirely, measurement is free of being affected by the environment, and the encoder is adaptive to a downhole high-dust environment; the encoder belongs to integrated components, is not prone to damages, and can be changed conveniently.
Description
technical field [0001] The invention relates to a straightness correction system of a working face hydraulic support group, in particular to a straightness correction system of a working face hydraulic support group using an encoder. Background technique [0002] The fully mechanized mining face is composed of shearer, scraper conveyor, hydraulic support and other equipment. The scraper conveyor is composed of a section of a chute connected. The connecting hole of the scraper conveyor and the hydraulic support push rod connection head are fixed and connected by pins, and the telescopic action of the jack is pushed through the hydraulic support on the working surface. Realistic scraper conveyor of the mobile. Multiple hydraulic supports are arranged in sequence on the working surface, and their respective positions are constrained by the scraper conveyor on the working surface, but their mutual positions are not constrained, which is a semi-floating system. During work, in ...
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IPC IPC(8): E21D23/18
Inventor 黄曾华王旭鸣张炳权李重重
Owner BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD