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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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Форма поиска

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 7. Отображено 7.
25-07-2012 дата публикации

Food cutting device

Номер: CN0101878801B
Автор: GUANGJIAN LUO, JIEFENG LUO, LUO GUANGJIAN, LUO JIEFENG
Принадлежит:

The invention relates to food cutting machinery, and discloses a food cutting device. The food cutting device comprises a rack, a control box arranged above the rack, a cutting platform arranged below the rack, a dynamic pressure cutting device arranged above the cutting platform and a conveying device arranged on the cutting platform and used for conveying cut food; the dynamic pressure cutting device comprises a main cylinder fixed in the control box, a main cylinder piston rod passing through the lower end of the control box, and a pneumatic cutter connected with the main cylinder piston rod and driven by the main cylinder to move up and down; the pneumatic cutter is arranged vertical to the cutting platform; and a food cutting port is formed on the tail end face of the cutting platform. The food cutting device can automatically cut the cut food, is particularly suitable for cutting meat-like food with bones, and has the advantages of simple structure, convenient use, high cutting speed ...

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Номер записи: 1
18-02-2015 дата публикации

High-pressure cylinder

Номер: CN104358667A
Автор: LUO JIEFENG
Принадлежит:

The invention relates to a high-pressure cylinder, which comprises a low-pressure tar cylinder and high-pressure water cylinders; the high-pressure water cylinders comprise a first high-pressure water cylinder and a second high-pressure water cylinder; the first high-pressure water cylinder and the second high-pressure water cylinder are respectively separated from the low-pressure tar cylinder; a piston is movably arranged in the low-pressure tar cylinder; the piston is limited through stroke contacts when doing reciprocating motion along the low-pressure tar cylinder; a first piston rod and a second piston rod are respectively and fixedly connected with two end faces of the piston; moreover, the first piston rod extends into the first high-pressure water cylinder by the low-pressure tar cylinder, and the second piston rod extends into the second high-pressure water cylinder by the low-pressure tar cylinder. The high-pressure cylinder adopting such a structure is compact and simple in ...

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Номер записи: 2
10-11-2010 дата публикации

Food cutting device

Номер: CN0101878801A
Автор: GUANGJIAN LUO, JIEFENG LUO, LUO GUANGJIAN, LUO JIEFENG
Принадлежит:

The invention relates to food cutting machinery, and discloses a food cutting device. The food cutting device comprises a rack, a control box arranged above the rack, a cutting platform arranged below the rack, a dynamic pressure cutting device arranged above the cutting platform and a conveying device arranged on the cutting platform and used for conveying cut food; the dynamic pressure cutting device comprises a main cylinder fixed in the control box, a main cylinder piston rod passing through the lower end of the control box, and a pneumatic cutter connected with the main cylinder piston rod and driven by the main cylinder to move up and down; the pneumatic cutter is arranged vertical to the cutting platform; and a food cutting port is formed on the tail end face of the cutting platform. The food cutting device can automatically cut the cut food, is particularly suitable for cutting meat-like food with bones, and has the advantages of simple structure, convenient use, high cutting speed ...

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Номер записи: 3
26-05-2023 дата публикации

Laminated rock mass different-dip-angle beam arch type tunnel initial lining structure and design method

Номер: CN116167131A
Автор: JUNG JI-WOONG, YANG ZIHAN, SHUAI JIANGUO, TAN ZHIWEN, MA XIANGQIAN, LUO JIEFENG, YI SHIQI, CHEN ZE, ZHANG LI, CUI TAO, ZHAO MINGHUI, LIU SHENG
Принадлежит:

The invention discloses an initial lining structure of a stratified rock different-dip-angle beam arch type tunnel and a design method. The design method comprises the following steps that S1, structural bearing and deformation characteristic values are calculated under the condition of a conventional supporting structure of the tunnel; s2, determining the position of a beam arch toe according to the dip angle of a rock stratum and rock mass mechanical indexes; s3, establishing a simplified load structure model; and S4, determining axial force in a beam arch, supporting pressure at toes and deformation indexes of an arch shaft and the toes by analyzing the bearing and stability of the model, designing structural parameters of a tunnel profile steel sprayed concrete primary lining according to a profile steel concrete arched beam, and determining profile steel lining arch foot toe expansion. According to the design method, the main load-bearing areas of the tunnel under different inclination ...

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Номер записи: 4
04-04-2023 дата публикации

Extrinsic Fabry-Perot acoustic sensor based on cantilever beam structure

Номер: CN115900920A
Автор: ZHANG QI, LUO JIEFENG, ZHANG XIAOBEI, WANG ZIJIE, YANG YONG, YU YANG, DENG CHUANLU, HUANG YI, WANG TINGYUN
Принадлежит:

The invention discloses an extrinsic Fabry-Perot acoustic sensor based on a cantilever beam structure. The device comprises a cantilever beam and a 45-degree total reflection structure. The basic principle is that an extrinsic Fabry-Perot cavity is formed between the cantilever beam and the optical fiber by using the 45 total reflection structure to change the propagation direction of transmission light. The cantilever beam is arranged in a free sound field, sound pressure with a certain frequency and amplitude is applied to push the cantilever beam to generate synchronous deflection deformation, so that the length of an interference cavity is changed, the interference spectrum is demodulated to obtain the length variation of the interference cavity, and the measurement of sound pressure signals at a measured position is realized by combining a theoretical deformation model of the cantilever beam. The cantilever beam structure provided by the invention has the advantages of high sensitivity ...

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Номер записи: 5
27-06-2023 дата публикации

Fabry-Perot optical fiber vibration sensor based on elastic bending amplification principle

Номер: CN116337200A
Автор: ZHANG QI, LUO JIEFENG, ZHANG XIAOBEI, WANG ZIJIE, YANG YONG, YU YANG, DENG CHUANLU, HUANG YI, WANG TINGYUN
Принадлежит:

The invention discloses a Fabry-Perot optical fiber vibration sensor based on an elastic bending amplification principle. The device comprises a single-mode optical fiber with a flat end face, an elastic sheet, a diaphragm and a mass block. One end of the elastic sheet is fixed, the other end of the elastic sheet is fixedly and vertically connected with the centers of the mass block and the diaphragm, and two ends of the diaphragm are fixed to form an elastic bending system; the flat end face of one end of the single-mode optical fiber is close to and aligned with the center of the polished face of the elastic sheet. According to the vibration sensor, by measuring the center deflection of the elastic sheet, the effect of mechanically converting and amplifying the center deflection of the pressed diaphragm and mass block structure is achieved, the sensing precision and sensitivity are improved, and the vibration sensor has low transverse crosstalk and is expected to be used for low-crosstalk ...

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Номер записи: 6
02-06-2010 дата публикации

Timber-sawing device

Номер: CN0101716781A
Автор: LUO GUANGJIAN, LUO JIEFENG, GUANGJIAN LUO, JIEFENG LUO
Принадлежит:

The invention discloses a timber-sawing device. The device comprises at least two pairs of driving wheels and driven wheels, and the driving wheels and the driven wheels are in concentric coaxial connection respectively, wherein the diameter of a first pair of driving wheel and driven wheel is greater than that of a second pair of driving wheel and driven wheel; the other pairs of driving wheels and driven wheels are arranged in turn along the concentric coaxial position of the first pair of driving wheel and driven wheel; and a saw blade tensioning mechanism used to ensure the stable tensioning degree of a saw blade during operation and a belt distance regulator used to regulate the saw blade to move along a vertical slide rail are arranged between the driving wheels and the driven wheels. As at least two pairs of driving wheels and driven wheels are adopted, when timber is cut, the timber-sawing device provided by the invention can cut a plurality of pieces of timber each time, thereby ...

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Номер записи: 7