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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 20. Отображено 20.
02-09-2015 дата публикации

Gear box of operating mode of dredging is exclusively used in

Номер: CN0204610744U
Принадлежит:

The utility model provides a gear box of operating mode of dredging is exclusively used in, it is the box as follows mainly, and input block and output unit are constituteed, the box in install an operating cylinder through the bearing, the one end of this operating cylinder is associative with shaft coupling and power through the input shaft coupling, the other end and clutch are associative, install the input shaft through the bearing in the box, the hot jacket has the driving gear on this input shaft, still install many output shafts through the bearing on the box, wherein have 5 output shafts at least on the hot jacket have a driven gear, the hot jacket has the 2nd driven gear on having 4 output shafts at least, and the hot jacket has a driven gear's output shaft and the adjacent distribution of output shaft that the hot jacket has the 2nd driven gear, just a driving gear and a driven gear and the 2nd driven gear mesh respectively, the both ends of every output shaft all have the power ...

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19-08-2015 дата публикации

Efficient plunge drilling cavity opening machining method and tool for closed deep cavity

Номер: CN104841968A
Принадлежит:

The invention discloses an efficient plunge drilling cavity opening machining method and tool for a closed deep cavity. A corner of the selected closed deep cavity serves as a tool start position. Rotary motion of a drill is main cutting motion, downward feed motion is main feed motion, a first hole machined in the left tool start position is a complete blind hole, after the first hole is machined, the drill is lifted and moved by a step in the step direction, a second hole is drilled, holes are machined according to the previous steps until hole machining is conducted on the right corner, at the moment, the drill is lifted, quickly moved to the tool start position and then moved by a cutting width in the cutting width direction for machining the second row of holes, and the process is continued until the whole cavity is machined. The plunge drilling cavity opening method for the closed deep cavity has the advantages that when the deep cavity is machined, cutting vibration is slight, and ...

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04-03-2015 дата публикации

Half-free flight shrapnel dispersion separation wind tunnel testing system

Номер: CN104390529A
Принадлежит:

The invention provides a half-free flight shrapnel dispersion separation wind tunnel testing system which comprises a wind tunnel supporting mechanism, a locking mechanism, an unlocking mechanism, a high-speed camera and a multichannel precision synchronization control instrument, wherein the wind tunnel supporting mechanism is used for supporting a parent shell in a wind tunnel flow field windward; the locking mechanism comprises a locking wire and a spring; the locking wire radially passes across the inner part of the parent shell to bind a bomb on the outer periphery of the parent shell; the compressed spring is arranged between the bound parent shell and bomb; the unlocking mechanism comprises an unlocking wire, a cylinder and a piston; a hook is arranged at one end of the unlocking wire, and is positioned in front of the part, transversely arranged in the parent shell, of the locking wire; the other end of the unlocking wire is fixed on the piston; the high-speed camera is arranged ...

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22-04-2015 дата публикации

Cutter system for processing large-diameter pipe inner holes through turning and milling

Номер: CN104526031A
Принадлежит:

The invention discloses a cutter system for processing large-diameter pipe inner holes through turning and milling. The cuter system comprises an upper support sheet, a lower support sheet, a push block, a disc spring, an upper support frame, a lower support frame, a sleeve, a milling cutter, a cutter bar and friction plates, wherein the upper support frame is an cube in shape, the lower support frame is a hollow cylinder, the upper support frame is connected with the lower support frame, the upper support sheet is arranged on the upper end of the upper support frame, the disc spring is arranged in the lower support frame, one end of the disc spring is fixed in the lower support frame, the other end of the disc spring is connected with the push block, the lower support sheet is arranged on the push block, the sleeve is arranged in the upper support frame, the cutter bar is arranged in the sleeve, and one end of the cutter bar penetrates the upper support frame and is connected with the ...

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25-03-2015 дата публикации

Wind tunnel multi-body separation free flight test device for stimulating engine residual thrust

Номер: CN104458193A
Принадлежит:

The invention discloses a wind tunnel multi-body separation free flight test device for stimulating engine residual thrust. The device comprises a secondary aircraft, a primary aircraft, a spring sleeve, a spring, a spring cover plate and a load. The secondary aircraft is detachably connected to the head of the primary aircraft through a first separation unlocking device, the spring sleeve is arranged on the tail of the primary aircraft, the rear end of the spring sleeve is provided with an opening, the spring is contained in the spring sleeve, the spring cover plate is detachably connected to the spring sleeve through a second separation unlocking device and at least partially covers the opening so as to enable the spring to be in the compressed state, and the load is connected with the spring cover plate. When the first separation unlocking device carries out unlocking to separate the secondary aircraft from the primary aircraft, the second separation unlocking device carries out unlocking ...

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28-01-2015 дата публикации

High-supersonic velocity wind tunnel dual-optical path system

Номер: CN104316289A
Принадлежит:

The invention provides a high-supersonic velocity wind tunnel dual-optical path system. In a Chinese conventional high-supersonic velocity wind tunnel test section, a light source, a 45-degree inclined reflector and new dual observation windows are designed and mounted in the tunnel without changing any wind tunnel structure by use of a large non-flow field region between a conical flow field in the tunnel and the wall of the tunnel, and in combination with an optical path component out of the tunnel, an optical path system for observing the vertical direction of the test section is established. The optical path is a telecentric optical path so that the optical parallax caused by the motion of a model in the depth-of-field direction can be eliminated.

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30-10-2020 дата публикации

Engine aftertreatment HC injection system

Номер: CN0211819578U

The utility model discloses a post-processing HC injection system of an engine. ENGINE AFTERTREATMENT, the technical problems that potential safety hazards exist in an existing HC injection system, and faults cannot be accurately diagnosed are mainly solved. The utility model discloses an engine aftertreatment HC injection system. The system comprises a controller, a common rail oil supply unit, an oil path cut-off device, a pressure detection device, an electronic metering oil sprayer and a mechanical nozzle. Wherein the common rail oil supply unit is sequentially connected with the oil way cut-off device, the pressure detection device, the electronic metering oil atomizer and the mechanical nozzle through oil pipes, and the controller is electrically connected with the oil way cut-off device, the pressure detection device and the electronic metering oil atomizer. By additionally arranging the stop valve, the risk of safety problems caused by the fact that fuel oil leaks into the DPFcan ...

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23-06-2023 дата публикации

Self-releasing hook with safety for hoisting

Номер: CN116281573A
Принадлежит:

The self-disengaging hook comprises a hanging rod, a connecting block, a fixing cylinder and a main hook, the connecting block is fixed to the top of the fixing cylinder, the hanging rod penetrates through the connecting block into the fixing cylinder, an anti-disengaging head is arranged at the end, extending into the fixing cylinder, of the hanging rod, and the hanging rod is in sliding connection with the connecting block in the vertical direction; a bearing pin is arranged between the top end of the main hook and the fixing cylinder, a torsional spring is arranged between the bearing pin and the main hook, and the torsional spring enables the main hook to rotate in the opening direction; a safety fastener is arranged in the fixing cylinder and connected with a retaining spring, the retaining spring enables the safety fastener to move upwards, the top of the safety fastener abuts against the anti-falling head, the bottom end of the safety fastener extends out of the fixing cylinder to ...

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21-04-2023 дата публикации

Low-temperature machining device for thin-wall part

Номер: CN115990784A
Принадлежит:

The invention belongs to the technical field of milling equipment for alloy thin-wall components difficult to machine, and particularly relates to a low-temperature machining device for thin-wall parts. The low-temperature machining device for the thin-wall part is better in working effect. The low-temperature machining device for the thin-wall part comprises a cutter handle outer ring 1.5 and is characterized in that the inner wall of the upper portion of the cutter handle outer ring 1.5 expands outwards to form an upper sealing ring containing groove and an upper bearing containing groove, an upper sealing ring 1.4 is arranged in the upper sealing ring containing groove, an upper thread fastening washer 1.3 is arranged at the upper end of the upper sealing ring 1.4, and the upper bearing containing groove is located at the upper end of the upper sealing ring containing groove; the diameter of the upper bearing placing groove is greater than that of the upper sealing ring placing groove ...

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21-04-2023 дата публикации

Low-temperature machining system for thin-wall part

Номер: CN115990783A
Принадлежит:

The invention belongs to the technical field of milling of alloy thin-wall components difficult to machine, and particularly relates to a low-temperature machining system for thin-wall parts. The low-temperature machining system for the thin-wall part is better in working effect. The low-temperature machining system for the thin-wall part comprises a liquid nitrogen Dewar tank 3.1, and is characterized in that an outlet of the liquid nitrogen Dewar tank 3.1 is connected with an inlet of a low-temperature flow valve 3.3 through a liquid nitrogen conveying hose 3.2, an outlet of the low-temperature flow valve 3.3 is connected with an inlet of an electronic flow control valve 3.4, an outlet of the electronic flow control valve 3.4 is connected with an inlet of a low-temperature pressure reducing valve 3.5, and an outlet of the low-temperature pressure reducing valve 3.5 is connected with an outlet of the low-temperature pressure An outlet of the low-temperature pressure reducing valve 3.5 ...

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01-04-2015 дата публикации

Wind tunnel multi-body separation free light test method of simulating residual engine thrust

Номер: CN104483088A
Принадлежит:

The invention discloses a wind tunnel multi-body separation free light test method of simulating residual engine thrust. The method comprises the steps of providing a two-stage aircraft model, wherein the two-stage aircraft model comprises a second-stage aircraft and a first-stage aircraft, a spring sleeve is arranged at the tail part of the first-stage aircraft, an opening is formed in the rear end part of the spring sleeve, a spring is accommodated into the spring sleeve, a spring cover plate is separably connected to the spring sleeve through a second separating unlocking device and at least partially covers the opening so as to enable the spring to be in a pre-compressing state, and a spring cover plate is connected to a load; emitting the model and keeping the same posture during flying; separating the first-stage aircraft and the second-stage aircraft without relative movement after flying for a certain of distance, unlocking the second separating unlocking device at the same time ...

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14-09-2005 дата публикации

Digital controlled high-speed rotary automatic cut off saw

Номер: CN0001666837A
Принадлежит:

The invention relates to a digital-control and high-speed revolving automatic cutting saw, which comprise the driving servo electric machine, the drive shaft, the planetary gear, the inner gear, the gear frame, the drive shaft gear, the main shaft, the main shaft gear, the revolving worktable, the main shaft servo electric machine and the electric control system. The drive shaft is on the shaft base and the revolving worktable, the revolving worktable is on the drive box the planetary gear and the inner gear tooth match, the gear frame is on the drive shaft, the main shaft servo electric machine self-turn around the main shaft and revolves in opposite direction of the drive shaft and the revolving worktable, the main shaft servo electric machine drives the saw to move horizontally through proper revolving speed relation to realize the fast-speed cut. The invention has simple structure, high precision and efficiency.

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25-03-2015 дата публикации

Method for obtaining shooting recording time in launching type wind tunnel free flight test

Номер: CN104458202A
Принадлежит:

The invention discloses a method for obtaining shooting recording time in a launching type wind tunnel free flight test. The method includes the following step that it is assumed that the speed of a model is zero when the model arrives at the front edge of a wind tunnel observation window, and the launching initial velocity of the model is calculated through displacement and acceleration obtained from the launching position to the front edge of the wind tunnel observation window of the front edge of the model. According to the resistance coefficient of the test model, wind tunnel flow field parameters, the wind tunnel observation window size range and other parameters, the launching initial velocity, at which the longest effective shooting recording time of the test can be obtained, of the model can be estimated, and the situation that the launching initial velocity is repeatedly adjusted in a wind tunnel through a practical air blowing test to obtain the longest shooting recording time ...

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29-08-2023 дата публикации

Intake duct structure of subsonic-combustion scramjet engine and determination method

Номер: CN116658303A
Принадлежит:

The invention relates to a subsonic-combustion scramjet engine air inlet channel structure and a determination method, an outer compression section of an air inlet channel is composed of an outer compression section horizontal plane, a first panel, a second panel and a third panel, and a lip with a deflection angle is arranged at an inlet of the lower end face of an inner compression section; when the structural parameters of the air inlet channel are determined, the design of the subsonic-combustion ramjet air inlet channel and the design of the scramjet air inlet channel are combined, and the corresponding ramjet air inlet channel geometric configuration determination process can be autonomously judged and selected only by determining the Mach number of the inlet of the air inlet channel. And finally outputting the optimal air inlet geometric configuration meeting the design requirements. According to the method, the two-dimensional air inlet channel structure design of the sub-combustion ...

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22-08-2023 дата публикации

Method for determining loading capacity in conceptual design stage of aircraft

Номер: CN116628842A
Принадлежит:

The invention relates to an aircraft conceptual design stage loading capacity determination method. The method comprises the steps that 1, an aircraft three-dimensional model is imported, and surface grids are divided; step 2, establishing an aircraft surface grid point database; step 3, calculating the coordinates of the central point of the grid unit, the area of the grid unit and the unit normal vector of the grid unit; step 4, calculating the projection area of the grid unit; 5, calculating projection volumes corresponding to the grid units; 6, adding the projection volumes of all the grid units to obtain the total volume of the aircraft; 7, adding all grid unit areas to obtain the total surface area of the aircraft; 8, calculating the structural volume of the aircraft; and 9, subtracting the aircraft structure volume from the aircraft total volume to obtain the aircraft loading capacity. According to the method, the aerodynamic performance calculation and the loading capacity calculation ...

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12-03-2014 дата публикации

Rubber surface fluorination modification testing device

Номер: CN103630676A
Принадлежит:

The invention discloses a rubber surface fluorination modification testing device which mainly comprises an xenon difluoride generating device, a gas flow meter, a pressure meter, a rubber surface fluorination device, a tail gas recovering device, a vacuum pump, a motor, an xenon difluoride recovering device, a throttle valve, a stainless steel pipe, a temperature control panel, a heating plate, a sealing ring, a rubber sample placing frame and other parts. A rubber sample is placed on the rubber sample placing frame and is positioned in the rubber fluorination device, and a defined mount of xenon difluoride gas is introduced to carry out surface fluorination modification on the rubber sample. The rubber fluorination device is vacuumized through the vacuum pump, the throttle valve and the stainless steel pipeline, and an xenon difluoride crystal is heated at certain temperature by using the heating device so as to be sublimated into a gaseous state, the gaseous xenon difluoride enters the ...

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30-05-2023 дата публикации

Marketing application building method and device, equipment and medium

Номер: CN116187735A
Принадлежит:

The invention provides a marketing application building method and device, equipment and a medium, and the method comprises the steps: displaying a development page for editing a marketing application according to a received marketing application development request of a target user for a target marketing business; in response to an editing operation for the development component in the development page, establishing a to-be-checked marketing application; in response to a verification operation for the to-be-checked marketing application, determining a check result of the to-be-checked marketing application; if the checking result is that the to-be-checked marketing application passes the preset checking logic, determining the to-be-checked marketing application as a target marketing application conforming to the target marketing business, and issuing the target marketing application; and if the checking result is that the to-be-checked marketing application does not pass the preset checking ...

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25-03-2015 дата публикации

Stage separation wind tunnel free flight test device

Номер: CN104458201A
Принадлежит:

The invention discloses a stage separation wind tunnel free flight test device. The test device comprises aircraft models, a sleeve, an elastic element and a separation unlocking mechanism. The aircraft models comprise the primary aircraft model and the secondary aircraft model, and the head of the primary aircraft model forms an abutting part forwards. The sleeve is provided with a closed end and an open end and arranged at the tail of the secondary aircraft model. The elastic element is contained in the sleeve. The abutting part is separably connected to the sleeve through the separation unlocking mechanism and stretches into the sleeve through the open end to abut against the elastic element, the elastic element generates pre-pressure, and the primary aircraft model and the secondary aircraft model are separated under the pre-pressure effect when the separation unlocking mechanism conducts unlocking operation. The primary aircraft model and the secondary aircraft model are separated ...

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07-04-2023 дата публикации

Self-releasing hook

Номер: CN115924717A
Принадлежит:

The invention discloses a self-releasing hook which comprises a hanging rod, a connecting block, a fixing cylinder and a main hook, the connecting block is fixed to the top of the fixing cylinder, the hanging rod is connected with the connecting block, the top end of the main hook extends into the fixing cylinder, a bearing pin is arranged between the main hook and the fixing cylinder, and a torsional spring is arranged between the bearing pin and the main hook. According to the invention, the main hook and the hanging ring can be automatically separated after the switch cabinet is carried to a designated position, and manual intervention is not needed.

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01-04-2015 дата публикации

Full free flight cluster bomb dispersion separation testing system

Номер: CN104483089A
Принадлежит:

The invention provides a full free flight cluster bomb dispersion separation wind tunnel testing system which comprises a launching device, a locking mechanism, an unlocking mechanism, a high-speed camera and a multi-channel precise synchronization controller, wherein the launching device is fixed on a wind tunnel support system and is used for launching a primary bomb opposite to the wind direction; the locking mechanism comprises a locking line and springs; the locking line transversely penetrates through the primary bomb in the radial direction so as to tightly tie secondary bombs at the periphery of the primary bomb; the springs are used for exerting force to the secondary bombs to be dissociated from the primary bomb; the unlocking mechanism is a steel wire with a hook at the front end; the end, where the hook is arranged, of the unlocking mechanism is positioned before the part, which is transversely arranged inside the primary bomb, of the locking line; the other end of the unlocking ...

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