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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4. Отображено 4.
18-05-2011 дата публикации

Real-time automatically leveled table and chair

Номер: CN0101810402B
Автор: CAI CHUNPENG, CHEN JIANMIN, LIU YANWU, CHUNPENG CAI, JIANMIN CHEN, YANWU LIU
Принадлежит:

The invention provides real-time automatically leveled table and chair. The panel of the table and chair is supported by a central supporting column and two hydraulic cylinders, and the three supporting points are distributed in an isosceles right triangle shape; a two-dimensional tilt sensor is arranged in the center of the panel to provide two-dimensional tilt angles of a workbench plane relative to the horizontal plane in real time, including x-axial signals with symbols and y-axial signals; and PLC acquires a tilt error according to the signals from the two-dimensional tilt sensor and sends proportional analog control signals in real time, controls positive rotation, negative rotation and rotating speed of a servo motor after the PLC is adjusted by a motor driver, and drives two hydraulic cylinders for leveling to make telescopic actions respectively by driving a composite bidirectional gear pump so as to maintain the horizontal state of the panel of the table and chair. If a substrate ...

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Номер записи: 1
16-02-2011 дата публикации

Real-time leveling base for floating type well drilling derrick

Номер: CN0101975028A
Автор: JIANMIN CHEN, CHUNPENG CAI, YANWU LIU, CHEN JIANMIN, CAI CHUNPENG, LIU YANWU
Принадлежит:

The invention provides a real-time leveling base for a floating type well drilling derrick. Four supporting oil cylinders vertically support an upper derrick structure through supporting sliding blocks, upper oil cavities of two oil cylinders on a diagonal line are directly connected through an oil pipe, and lower cavities are respectively connected with two oil cavities of leveling oil cylinders. A two-dimensional tilt sensor is used for monitoring a two-dimensional tilt angle of a derrick base in real time, a PLC controller is used for receiving a signal of the sensor and sending positive and negative electric signals with a corresponding proportion to a motor driver to ensure that an electric push rod acts according to the required direction and the speed to push pistons of the leveling cylinders to move so as to drive a group of opposite angle supporting oil cylinders connected with the leveling cylinders for lifting and descending linkage for controlling the tilt degree of a diagonal ...

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Номер записи: 2
25-08-2010 дата публикации

Real-time automatically leveled table and chair

Номер: CN0101810402A
Автор: CHUNPENG CAI, JIANMIN CHEN, YANWU LIU, CAI CHUNPENG, CHEN JIANMIN, LIU YANWU
Принадлежит:

The invention provides real-time automatically leveled table and chair. The panel of the table and chair is supported by a central supporting column and two hydraulic cylinders, and the three supporting points are distributed in an isosceles right triangle shape; a two-dimensional tilt sensor is arranged in the center of the panel to provide two-dimensional tilt angles of a workbench plane relative to the horizontal plane in real time, including x-axial signals with symbols and y-axial signals; and PLC acquires a tilt error according to the signals from the two-dimensional tilt sensor and sends proportional analog control signals in real time, controls positive rotation, negative rotation and rotating speed of a servo motor after the PLC is adjusted by a motor driver, and drives two hydraulic cylinders for leveling to make telescopic actions respectively by driving a composite bidirectional gear pump so as to maintain the horizontal state of the panel of the table and chair. If a substrate ...

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Номер записи: 3
28-04-2023 дата публикации

Chain tightening tool and chain tightening method for scraper conveyor

Номер: CN116022515A
Автор: WANG PENG, ZHANG FENGJIAO, GUO JIANJUN, XING HAILONG, ZHU WENCHAO, FU RUIHUA, LI YING, CAI CHUNPENG
Принадлежит:

The invention relates to a chain tightening tool and a chain tightening method for a scraper conveyor, and the chain tightening tool for the scraper conveyor comprises a scraper blade stopping part mounted on a middle plate of a transition groove at the tail of the scraper conveyor, a chain stopping wheel part mounted on a tail frame of the scraper conveyor in a hinged manner, and a chain tightening controller, the chain tightening controller is electrically connected with a driving part of the scraper conveyor and the chain blocking wheel component through wires. The problems that a manual clamping mechanism is adopted in a brake disc chain tightener, operation is tedious, danger is high, and the brake disc chain tightener can only be suitable for a small-power scraper conveyor are solved, an intelligent chain tightening control system is adopted to achieve chain tensioning, braking, chain pinching and chain loosening, the chain tightening process is automatically completed, a hydraulic ...

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Номер записи: 4