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

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Применить Всего найдено 4. Отображено 4.
27-08-2021 дата публикации

Rear cover of hydraulic oil cylinder

Номер: CN214063454U
Автор: ZHANG CHENG, LU XIN, REN SHAOCHENG, MEI GUIHUA, ZHANG ZONG, 章程, 陆欣, 任绍成, 梅桂华, 张纵
Принадлежит: SHIYAN TIANXUN AUTO PARTS CO LTD, SHIYAN TIANXUN AUTO PARTS CO., LTD., 十堰天巽汽车零部件股份有限公司

The rear cover of the hydraulic oil cylinder comprises an end cover and a knuckle bearing, the end face, matched with a hydraulic cylinder barrel, of the end cover is in a right-angle quadrangle shape, an annular protrusion is arranged in the middle of the end face, an oil return hole is formed in the portion, located in the annular protrusion, of the end face, and two first oil inlet and outlet holes are formed in the first side wall, close to the oil return hole, of the end cover. Two second oil inlet and outlet holes are formed in the second side wall, opposite to the first side wall, of the end cover, a third oil inlet and outlet hole is formed in the third side wall, adjacent to the second side wall, of the first side wall, the first oil inlet and outlet hole is communicated with the opposite second oil inlet and outlet hole, the two first oil inlet and outlet holes are communicated, and the second oil inlet and outlet hole is communicated with the second oil inlet and outlet hole.

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Номер записи: 1
29-08-2023 дата публикации

Method for evaluating strength characteristics of top cover connecting bolt of pump turbine

Номер: CN116663339A
Автор: LI HAIBO, LI CHENGJUN, CHEN LIU, HU KUN, QIU LAN, WANG DELOU, YU JIXING, ZHANG XIN, CHEN SHUNYI, ZHOU LINGJIU, RONG-YANG YIMING, REN SHAOCHENG, LI HAILING, LI JINWEI, JIANG MINGLI, SUN MINGJUN, LIU YANG
Принадлежит:

The invention provides a pump turbine top cover connecting bolt strength characteristic evaluation method which comprises the following steps: (1) carrying out full-flow-channel three-dimensional modeling and grid division on a pump turbine, inputting calculation conditions under different operation conditions, and carrying out CFD flow field calculation under typical working conditions to obtain water pressure distribution between a top cover and a runner under different working conditions; (2) performing three-dimensional modeling and grid division on a top cover, a seat ring and a connecting bolt structure, and performing calculation by taking the water pressure distribution obtained in the step (1) under different working conditions as a calculation condition to obtain stress characteristics of each bolt under different working conditions; and analyzing the calculation result to obtain the maximum average stress of the bolt. According to the method, the non-uniformity of water thrust ...

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Номер записи: 2
27-08-2021 дата публикации

Rapid drying device for automobile parts

Номер: CN214065537U
Автор: ZHANG CHENG, LU XIN, REN SHAOCHENG, MEI GUIHUA, ZHANG ZONG, 章程, 陆欣, 任绍成, 梅桂华, 张纵
Принадлежит: SHIYAN TIANXUN AUTO PARTS CO LTD, SHIYAN TIANXUN AUTO PARTS CO., LTD., 十堰天巽汽车零部件股份有限公司

The utility model discloses an automobile part rapid drying device which comprises a box body, a rotating motor is fixedly connected to the bottom in the box body, a rotating box is fixedly connected to the top of the output end of the rotating motor, an air heater is fixedly connected to the top in the box body, and an air injection vertical pipe is connected to the bottom of the air heater through an air conveying pipe. The air injection vertical pipe extends into the rotating box, a loading support is detachably connected to the inner wall of the rotating box, and the air injection vertical pipe is located on the rotating axis of the rotating box; according to the novel drying device, the drying efficiency is greatly improved through the centrifugal effect and the high-speed hot air flow effect, and the device is simple in structure and convenient to control.

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Номер записи: 3
25-07-2023 дата публикации

Method and system for evaluating safety of top cover and seat ring connecting structure of pump turbine

Номер: CN116484534A
Автор: MO YABO, LI CHENGJUN, ZHANG ZHENG, CHEN LIU, WANG ZHENGWEI, LI HAILING, HUANG XINGXING, YANG BIN, ZHOU XIANG, REN SHAOCHENG, WANG DELOU, XUE TIANJIAO, LI JINWEI, WANG LIANG, CHEN SHUNYI, JIANG MINGLI, ZHANG XIN, JIANG MENGJIAO, SUN MINGJUN, LIU YANG
Принадлежит:

The invention discloses a method and system for evaluating the safety of a top cover and seat ring connecting structure of a pump turbine, and the method comprises the steps: carrying out the CFD flow field calculation of the pump turbine under the full-flow-channel operation condition, and obtaining the water pressure distribution between a top cover and a rotating wheel under each working condition; performing three-dimensional model construction on the integral structure of the top cover, the seat ring and the connecting bolt; performing grid division on the three-dimensional model; stress distribution and deformation of the top cover, the bolt and the seat ring under various working conditions are obtained through finite element calculation; and comprehensively evaluating the safety result of the top cover and seat ring connecting structure of the pump turbine according to the stress distribution and deformation conditions of each cross section of the bolt, the bolt external thread, ...

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Номер записи: 4