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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 14. Отображено 14.
18-09-2013 дата публикации

Self-lifting type crane for wind generating set

Номер: CN103303807A
Принадлежит:

The invention discloses a self-lifting crane for a wind generating set. The self-lifting crane comprises an operating platform and a portal, wherein a bracket is fixed above the operating system, the lower end of the portal is rotatably connected with the bracket, derricking cylinders are symmetrically arranged at two sides of the portal, an upper annular crane-hooping mechanism and a lower annular crane-hooping mechanism are arranged at one side of the operating platform in parallel and are respectively arranged on a crane drum, and the operating platform is connected to the bottom of a cabin through a lifting mechanism. According to the self-lifting type crane for the wind generating set, provided by the invention, a maintenance device does not need to be equipped for each wind generating set, thus the cost is lowered; the derricking cylinders stretch out and contract back to drive the portal to derrick, and the portal is stably derricked in an included angle of 50-130 DEG between the ...

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14-08-2013 дата публикации

Intelligent operation control system of bridge crane

Номер: CN103241654A
Принадлежит:

The invention relates to the technical field of lifting appliances, and discloses an intelligent operation control system of a bridge crane. The intelligent operation control system comprises a controller, a display, a mounting rack, an ultrasonic wave sensor group and an encoder, wherein the display is arranged in a cab; a lifting hook of the bridge crane is provided with the mounting rack which is of a round structure, and the ultrasonic wave sensor group is arranged on the mounting rack; and the encoder is arranged on a motor of a cart or a trolley operation mechanism, and the controller is arranged in the bridge crane and is respectively in signal connection with the display, the ultrasonic wave sensor group, the encoder as well as an operation mechanism of the cart or a trolley. The bridge crane provided by the invention can avoid a navigation movement, an operating path of the bridge crane is excellent under the half-unknowing environment, the bridge crane can automatically operate ...

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14-08-2013 дата публикации

Wheeled crane

Номер: CN103241662A
Принадлежит:

The invention relates to the field of engineering machinery, and discloses a wheeled crane which comprises a telescopic arm, an arm-folded rotary-type driving cabin, a revolving table as well as a lower vehicle chassis, wherein the revolving table is installed on the upper end of the lower vehicle chassis; the telescopic arm is installed on the upper end of the revolving table; and the arm-folded rotary-type driving cabin is installed on the upper end of the revolving table and is installed at one side of the telescopic arm. The wheeled crane further comprises a folded arm, a driving cabin and a driving device, wherein the folded arm is installed at the right side of the telescopic arm at the heading direction of the crane, one end of the folded arm is connected with the driving device, the other end of the folded arm is connected with the driving cabin, and the folded arm rotates synchronously with the telescopic arm. The wheeled crane provided by the invention is compact in structure, ...

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04-07-2012 дата публикации

Tooling support for assembling and transporting nuclear-power containment-vessel cover head

Номер: CN102535870A
Принадлежит:

The invention discloses a tooling support for assembling and transporting a nuclear-power containment-vessel cover head, which comprises a supporting leg group (1), a platform (2), upper-portion supports (3), wherein the supporting leg group (1) is installed on the lower portion of the platform (2), and the upper-portion supports (3) are installed above the platform (2) after connection. The upper-portion supports (3) are in mesh connection with each other respectively through sphere spherical-hinge adjusters (4). The platform (2) is composed of a series of rings in radial connection with each other, and the supporting leg group (1) is only installed at the center and two sides of the platform (2). The tooling support for assembling and transporting the nuclear-power containment-vessel cover head can effectively control deformation of the cover head (a dome) during the assembling and transporting process and simplifies installation and transportation of the cover head. In addition, the ...

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20-02-2013 дата публикации

Control method facing double moving type crane collaborative operation

Номер: CN102935979A
Принадлежит:

The present invention discloses a control method facing double moving type crane collaborative operation, wherein a servo crane coordinatly makes a corresponding action along with an action of an initiative crane through program control so as to increase safety and accuracy of double crane lifting. According to the present invention, a specific step size calculation formula is adopted to obtain the corresponding action amount of the servo crane, and a yawing angle of a lifting rope is adopted to determine whether the action of the servo crane is reasonable after completing the action of the servo crane; and with the action step size self-adaptation calculation method, the action step size of the servo crane can be automatically adjusted according to the action of the initiative crane and the work state of the current double crane system, such that the double crane collaborative lifting task can be safely completed only by controlling one crane, complexity during the actual lifting process ...

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28-08-2013 дата публикации

Hydro-cylinder piston set block with structure easy to mount and dismount

Номер: CN103267119A
Принадлежит:

The invention relates to the field of engineering machinery, heavy machinery, transportation machinery and the like, and discloses a hydro-cylinder piston set block with a structure easy to mount and dismount. The hydro-cylinder piston set block comprises a first piston block, a second piston block, a third piston block and a fixing device, wherein the first piston block, the second piston block and the third piston block are sequentially installed on the left end plane of a hydro-cylinder piston rod. A first guiding ring is placed at the side end of the first piston block. Two lip-shaped sealing rings are placed at the side end of the second piston block, and an O-shaped ring is arranged on the other side of the second piston block. A second guiding ring is placed at the side end of the third piston block. The fixing device is installed on the piston rod, and is matched with the third piston block to be positioned. According to the hydro-cylinder piston set block with the structure easy ...

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29-07-2015 дата публикации

Tire and crawler composite multi-steering-mode chassis

Номер: CN104805882A
Принадлежит:

The invention relates to an engineering mechanical chassis, wherein the tire travelling or the crawler travelling can be adopted and the complex terrain operation and the rapid movement and transfer can be achieved. A rapid plug connector is connected with a hydraulic and control system of an upper vehicle and a hydraulic and control system of a lower vehicle, a driver selects a driving mode according to the actual condition, a crawler operation mode is adopted on a complex terrain work site, a tire driving mode is selected during transfer or the rapid movement is required, the tire driving mode comprises two-wheel driving, four-wheel driving and three steering modes of two-wheel steering, four-wheel steering and inclined driving, and accordingly the multiple driving and steering modes of a vehicle under the tire driving mode can be achieved and the trafficability is high. According to the tire and crawler composite multi-steering-mode chassis, the functions of the tire driving and the ...

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03-07-2013 дата публикации

Double-power system for dynamic compactor

Номер: CN103184732A
Принадлежит:

The invention relates to the field of cranes, and discloses a double-power system for a dynamic compactor. The double-power system comprises a hydraulic oil tank, a power source, a hydraulic oil pump unit, a conversion valve block and a hydraulic system, wherein the power source comprises two sets of power devices, i.e. an engine and an electric motor; the two sets of power devices respectively provide power for the hydraulic oil pump unit; and the hydraulic oil pump unit comprises a first hydraulic oil pump unit consisting of a first plunger pump and a first gear pump, and a second hydraulic oil pump unit consisting of a second plunger pump and a second gear pump. A driving system of the double-power system can respectively use diesel oil or electricity as the power source; under the condition that a vehicle operates in the field and is inconvenient to use power, an operating mechanism is driven to work by the diesel engine; and under the condition that the vehicle can be conveniently ...

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24-04-2013 дата публикации

Large luffing jib tower crane introduction mechanism

Номер: CN103058072A
Принадлежит:

The invention relates to the field of engineering machinery, and discloses a large luffing jib tower crane introduction mechanism. The mechanism comprises a bent introduction cross beam, a pull rod I, a platform, an electric introduction trolley, a special lifting hook and a special lifting tool. The introduction trolley is driven by a three-in-one speed reduction motor; compared with the traditional introduction mechanism, the electric introduction trolley is always placed on the introduction cross beam due to demand of power supply; when being used for ejecting added sections, the special lifting tool lifts a standard section; and the special lifting tool and the standard section are placed on the electric introduction trolley in the standard section introduction process, so that the problem of difficult to introduce the standard section in the traditional introduction mechanism is solved; the introduction cross beam adopts a bent form, so that the problem that the introduction cross ...

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04-07-2012 дата публикации

Multifunctional fly jib device for high-altitude work vehicle

Номер: CN102530785A
Принадлежит:

The invention discloses a multifunctional fly jib device for a high-altitude work vehicle, which is mounted at a head of a main jib of the high-altitude work vehicle. Actions of a fly jib within a wide range are realized by additionally mounting a four-link device at the end of a driving oil cylinder, a working platform is ensured to be kept horizontally constantly by adopting a sprocket-chain device, each action is limited by a mechanical device and a sensor to guarantee safety, and a hoisting device at the head of the fly jib can facilitate fetching of workers, so that work efficiency is improved.

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04-07-2012 дата публикации

Gapless gear transmission multifunctional limiter

Номер: CN102537302A
Принадлежит:

The invention discloses a gapless gear transmission multifunctional limiter, which is characterized by comprising a seat plate component (1), a first gear component (8) and a second gear component (12). The upper end of the first gear component (8) is fixedly mounted on the seat plate component (1), and the first gear component (8) is coaxially connected with a gear of a worm gear component (7) via a bearing (9). Gears of the first gear component (8) and the second gear component (7) are metal gears, and flexible materials are attached on the surfaces of the metal gears. The gapless gear transmission multifunctional limiter is high in precision, gapless transmission of the gears can be realized, error accumulated risks are reduced, and cost is low.

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22-07-2015 дата публикации

Brake device supporting rail-compatible running of trapped rail car

Номер: CN104787081A
Принадлежит:

The invention provides a brake device supporting rail-compatible running of a trapped rail car. The brake device comprises a frame, oil cylinders and disc springs and further comprises lifting block and hook swing mechanisms, wherein the oil cylinders, the disc springs and the lifting block and hook swing mechanisms are arranged in the frame, and the disc springs are arranged on the lower portions of the oil cylinders. Each lifting block and hook swing mechanism comprises a pressing block assembly, a lifting block assembly and a hook swing part, wherein the pressing block assembly comprises a flange, a rod part and an upper friction block, the lifting block assembly comprises a brake hook and a lower friction block, and the hook swing part comprises a swing plate, a lug fork, a tension spring, a lug plate, a guide wheel and a stud. The guide wheels are attached to the outer side faces of rails; and the peripheries of the studs are sleeved with the guide wheels, and the guide wheels can ...

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24-04-2013 дата публикации

Single-cylinder plug type retractable arm and hydraulic plug interlocking device thereof

Номер: CN103058078A
Принадлежит:

The invention discloses a single-cylinder plug type retractable arm and a hydraulic plug interlocking device. The interlocking device comprises an arm pin clamping groove which moves under the action of an arm pin retractable oil cylinder, cylinder pins which move under the action of a plunger piston pushed by hydraulic oil, and hydraulic cylinder pin locks located at the tail ends of the left and right cylinder pins positioned at the lower side; a movement path of the cylinder pin locks is intersected with a movement path of the cylinder pins in the same plane; and a cylinder pin lock retractable oil cylinder is communicated with the arm pin retractable oil cylinder through a pipeline to realize synchronous piston movement. When the arm pin clamping groove moves to an unlocking position, the cylinder pins at the upper part is locked by the arm pin clamping groove and the cylinder pins at the lower part are locked by the hydraulic cylinder pin locks; and when the cylinder pins move to the ...

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03-10-2012 дата публикации

Hydraulic aerial cage operation platform trajectory control device

Номер: CN102707730A
Принадлежит:

The invention discloses a hydraulic aerial cage operation platform trajectory control device. The control device comprises an operation mechanism (A), a detection device (B), a display and alarm device (C), a hydraulic operation loop (D) with pressure compensation, a coordinate location module (E), a forward resolving module (F), a deflection compensation module (G), a speed setting module (H), an algorithm optimization module (I), and a programmable controller (J). The control device provided by the invention can significantly improve the work efficiency of the hydraulic aerial cage, reduce the labor intensity of operators, and lower the energy consumption as well as the use cost.

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