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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 14. Отображено 14.
25-10-2019 дата публикации

Clamping device of metallographic cutting machine

Номер: CN0209532789U
Принадлежит: CHENGDU AERONAUTIC POLYTECHNIC

The utility model discloses a metallographic cutting machine clamping device which comprises a base, a bearing plate and a rear side baffle are arranged at the two ends of the base respectively, a movable piece is installed on the bearing plate, and a fixed piece is installed on the rear side baffle. The movable part comprises a screw rod arranged on the bearing plate in a penetrating mode, one end of the screw rod is fixedly connected with the movable bottom plate, and a plurality of movable supporting columns are arranged on the movable bottom plate in parallel; the fixing piece comprises asupporting rod fixedly connected with the rear side baffle, one end of the supporting rod is fixedly connected with the fixing bottom plate, and a plurality of fixing supporting columns are arranged on the fixing bottom plate in parallel; and the movable supporting column and the fixed supporting column have the same structure and are mutually symmetrical. The clamping device can solve the problems ...

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01-05-2018 дата публикации

Automatic changer of 3D printer platform

Номер: CN0207290952U
Принадлежит: CHENGDU AERONAUTIC POLYTECHNIC

The utility model discloses an automatic changer of 3D printer platform, including print platform, the print platform lower extreme is provided with the link, the trigger is put in the connection of link side, the print platform upper surface is provided with a plurality of idler wheel motor no. 1 and limit switch, the link medial surface is provided with many spacing posts, the flat board is printed to last having placed of print platform. Beneficial effect lies in: automatic changer of 3D printer platform can to realize that quick, convenient change 3D prints dull and stereotyped, promote print speed and efficiency, security height, easy and simple to handle, the practicality is good.

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30-03-2018 дата публикации

Stamping die layering heating device

Номер: CN0207154577U
Принадлежит: CHENGDU AERONAUTIC POLYTECHNIC

The utility model discloses a stamping die layering heating device, including first heating cabinet, pull board and second heating cabinet, the equal fixedly connected with backup pad in middle part of first heating cabinet both sides inner wall, the pull board has been placed at the top of two backup pads, and a plurality of bars fluting has evenly been seted up on pull board surface, and the pull board is first heating chamber and second heating chamber with the internal partitioning of first heating cabinet, and the inner wall on first heating chamber top evenly is equipped with a pluralityof first baffles, and the bottom of first baffle is connected with the top contact of pull board. The utility model discloses the bar of offering on pull board fluting can be through the cooperationwith the second baffle, nimble drops the sheet material to after first heating intracavity portion preheats on the first conveyer belt of second heating intracavity portion again, carries out degree of depth ...

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27-04-2011 дата публикации

Progressive forging forming method for large cake forged pieces

Номер: CN0102029350A
Принадлежит:

The invention discloses a progressive forging forming method for large cake forged pieces. The method comprises the following steps of: installation and regulation; first single-side forming; second, third and fourth single-side forming; multiple turnover forming; and rounding and reshaping. By adopting progressive anvil distribution and anvil conveying modes, progressive contact of anvils and forged pieces in each anvil pressing process is ensured; three-directional pressure stress is provided for promoting elimination and recovery of internal gap defects; single metal flowing direction is improved; because of the adoption of progressive forging, local deformation is asynchronous, press load is reduced, the production efficiency of equipment is improved, the forming force is reduced, and high work efficiency with the small equipment is realized; and small forging ratio formation can be realized, and the processing period is shortened so as to reduce the production cost.

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30-03-2018 дата публикации

Sheet material work piece heated mold convenient to drawing of patterns

Номер: CN0207154576U
Принадлежит: CHENGDU AERONAUTIC POLYTECHNIC

The utility model discloses a sheet material work piece heated mold convenient to drawing of patterns, including cope match -plate pattern and lower bolster, the fixed hydraulic press that is equippedwith in the middle part of cope match -plate pattern bottom, fixing bolt and terrace die fixed connection are passed through to the one end of the hydraulic stem of hydraulic press, and the inside ofterrace die is equipped with two dead levers, and the surface of two dead levers is all twined and is equipped with the coil, and two equal through the electrode of coil are connected with the insideelectrode contact who is equipped with of hydraulic stem. The utility model discloses a be equipped with the coil in that the terrace die is inside, through electroproduction magnetism principle, cancontrol the terrace die and produce magnetic force, accomplish the back in the punching press, adsorb a die through magnetic force with the product that the punching press is good inside, through being equipped ...

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03-12-2014 дата публикации

Short-process forging method for nuclear power main pipe billet channel

Номер: CN104174798A
Принадлежит:

The invention discloses a short-process forging method for a nuclear power main pipe billet channel. The short-process forging method reduces forging difficulty and forging heating number and comprises the steps as follows: A, selecting steel ingots and removing damage of the steel ingots; B, pressing a plier handle and rolling; C, upsetting, swaging and octagonally forging; D, rolling, distributing and swaging; and E, locally upsetting a flange at a pipe mouth, and discharging a finished product. With the adoption of the method, the main pipe mouth part is subjected to local covering and local upsetting for forming, the forging difficulty and the forging heating number are reduced, the forging cost is reduced, and the forging efficiency is improved; meanwhile, the forge piece surface cracking is prevented from aspects of steel ingot surface quality, plier handle and end surface transition fillet, end surface inclination, forge piece water gap reservation, small rolling reduction forming ...

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24-08-2011 дата публикации

Local hollow upsetting diameter-expanding method of ring piece

Номер: CN0102161072A
Принадлежит:

The invention discloses a local hollow upsetting diameter-expanding method of a ring piece, comprising the steps of: placing a ring blank on a lower anvil with an arc-shaped groove and a cushion plate, and adjusting the position to guarantee the balance state; using a power mechanism to drive an upper anvil with the arc-shaped groove to move forwards, and pressing the ring blank slowly; then using the power mechanism to drive the upper anvil to move upwards, and after the power mechanism clamps the ring piece to rotate, leading the upper anvil to continuously move downwards and to press the ring blank; and the local hollow upsetting diameter-expanding deformation of the large geometric dimensioning ring blank is realized by repeated deformation. Compared with the prior art, as an anvil plate is provided with a groove, the flow resistance of the anvil plate to the ring blank metal is increased, the capability of the ring blank metal flowing along the peripheral direction is improved, and ...

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27-03-2018 дата публикации

Multifunctional unmanned aerial vehicle based on modularized design

Номер: CN0207141391U
Принадлежит: CHENGDU AERONAUTIC POLYTECHNIC

The utility model discloses a multifunctional unmanned aerial vehicle based on modularized design, including fuselage, fin and wing, the both sides of fuselage are located to the wing, and the fin isconnected with the fuselage through the tail, the wing includes first wing and second wing, first wing one end links to each other with the both sides of fuselage, and its other end is connected withthe second wing, all be equipped with screw and communication module on two first wings, the screw links to each other with driving motor, be equipped with a spout on the fuselage, seted up a plurality of locating holes in the spout, upper portion at the spout is equipped with GPS orientation module, the tail holding is in the spout to through locating hole and fuselage fixed connection, both sides are equipped with the constant head tank about the first wing tip, and second wing tip both sides are equipped with the locating plate of cooperation constant head tank, all be equipped with a plurality ...

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17-08-2021 дата публикации

Integrated self-adaptive force control joint

Номер: CN113263518A
Принадлежит:

The invention discloses an integrated self-adaptive force control joint, and relates to the technical field of robots. The integrated self-adaptive force control joint comprises a motor driving assembly and a torque measurement and transmission assembly, the motor driving assembly comprises a first shell, a rear outer shaft, a signal sliding ring, an output end encoder, a frameless torque motor and an electromagnetic brake. The frameless torque motor and the electromagnetic brake are arranged on the rear outer shaft in a sleeving mode. The torque measurement and transmission assembly comprises a second shell, a middle shaft, a front outer shaft, a motor end encoder, a harmonic reducer, a torque sensor and an output flange plate, the two ends of the middle shaft are arranged in the second shell and the first shell respectively, the output end encoder is arranged on the middle shaft, the front outer shaft is connected with the rear outer shaft, the motor end encoder is arranged on the front ...

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17-09-2008 дата публикации

Automobile out star wheel isothermal extrusion preliminary shaping device

Номер: CN0101264489A
Принадлежит:

The invention discloses a pre-forming device of automobile external star wheel by isothermal extrusion. The forming device comprises a punch and a female die, the punch and the female die are matched with a lateral fixing and a vertical shift by a guide pillar. The female die is provided with a die cavity, and a heating device is arranged at the periphery of the die cavity. The heating unit is arranged at the die cavity of the invention to maintain the outer layer temperature of the mold. The invention has the advantages of greatly reducing the geothermal gradient of blank and mold, effectively reducing the thermal dispersion of blank in the forming process, achieving the extrusion pre-forming under the isothermal condition, avoiding the situation of not full die cavity caused by too fast temperature drop, material deformation and persistence increase, improving the qualified rate of finished products, and reducing waste.

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11-08-2023 дата публикации

Training action recognition method and system

Номер: CN116578910A
Принадлежит:

The invention discloses a training action recognition method and system, and belongs to the technical field of action recognition, and the method comprises the following steps: S1, collecting a current motion data set and a historical motion data set of a user; s2, reconstructing the historical acceleration data and the historical angular velocity data at each historical moment to generate corresponding reconstructed acceleration data and reconstructed angular velocity data; s3, generating a historical action matrix according to the reconstructed acceleration data and the reconstructed angular velocity data at each historical moment, and generating a current action matrix according to the current acceleration data and the current angular velocity data; and S4, according to the historical action matrix and the current action matrix, identifying a training action. According to the training action recognition method, the motion data at the current moment and the historical moment are collected ...

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08-10-2014 дата публикации

Metal smelting method of large high-temperature alloy casting

Номер: CN104087760A
Принадлежит:

The invention discloses a metal smelting method of a large high-temperature alloy casting, which is capable of producing multiple tons of molten steel meeting large high-temperature alloy casting requirements once. The smelting method comprises the following steps: (1) transforming equipment and confirming a formula of materials needed for the high-temperature alloy casting; (2) smelting a plurality of small steel ingots meeting the large high-temperature alloy casting requirements, wherein the total mass of the small steel ingots is 110%-120% that of the molten steel needed for the large high-temperature alloy casting; (3) removing regions with relatively poor quality from the small steel ingots, cutting into small pieces, and smelting in a large electrical furnace; (4) performing deoxidization, decarbonization and H and N removal on the molten steel obtained by smelting in a ladle refining furnace, and adjusting chemical components of the molten steel until the chemical components of ...

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04-07-2012 дата публикации

Progressive forging forming method for large cake forged pieces

Номер: CN0102029350B
Принадлежит:

The invention discloses a progressive forging forming method for large cake forged pieces. The method comprises the following steps of: installation and regulation; first single-side forming; second, third and fourth single-side forming; multiple turnover forming; and rounding and reshaping. By adopting progressive anvil distribution and anvil conveying modes, progressive contact of anvils and forged pieces in each anvil pressing process is ensured; three-directional pressure stress is provided for promoting elimination and recovery of internal gap defects; single metal flowing direction is improved; because of the adoption of progressive forging, local deformation is asynchronous, press load is reduced, the production efficiency of equipment is improved, the forming force is reduced, andhigh work efficiency with the small equipment is realized; and small forging ratio formation can be realized, and the processing period is shortened so as to reduce the production cost.

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07-01-2015 дата публикации

Large-sized steel ingot production method

Номер: CN104259357A
Принадлежит:

The invention discloses a large-sized steel ingot production method which is simple in technology and low in cost, can achieve welding of a plurality of small-sized electroslag remelting steel ingots and obtain a large-sized electroslag remelting steel ingot. The large-sized steel ingot production method comprises the following steps of firstly preparing the small-sized electroslag remelting steel ingots, then determining one end surfaces of the steel ingots are welding surfaces and processing and protecting the welding surfaces; stacking the two small-sized electroslag remelting steel ingots to be heated under high temperature; upsetting the combined steel ingots according to a certain forging ratio and maintaining pressure of the combined steel ingots after heating; returning to a heating furnace to heat under high temperature and preserving the temperature after upsetting; finally obtaining the large-sized steel ingot. According to the large-sized steel ingot production method, welding ...

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