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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 17. Отображено 17.
29-08-2023 дата публикации

Equipment and method for evaluating performance of drilling tool

Номер: CN116659834A
Принадлежит:

The invention discloses equipment and a method for evaluating the performance of a drilling tool. The equipment and the method are rapid and economical in evaluation of the performance of the drilling tool. The equipment for evaluating the performance of the drilling tool comprises a mounting part, a positioning part, a radial operating part, a rotary operating part and a stress sensing mechanism, the positioning part is mounted at the top of the mounting part, the positioning part positions the drilling tool to be tested by positioning a main cutting edge of the drilling tool, the mounting part is mounted at the input end of the stress sensing mechanism, and the radial operating part and the rotary operating part are mounted on the mounting part. The stress sensing mechanism is used for detecting the pre-tightening axial force, the bending moment under the pre-tightening axial force, the torque under the pre-tightening axial force, the maximum torque under the pre-tightening axial force ...

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23-09-2009 дата публикации

Transmission method and transmission structure capable of preventing expansion ring from damaging transmission shaft of wire drawing machine

Номер: CN0101537434A
Принадлежит:

The invention discloses a transmission method capable of preventing an expansion ring from damaging a transmission shaft of a wire drawing machine. The transmission method is characterized in that the expansion ring and a flat key are simultaneously arranged between a wire drawing wheel and the transmission shaft of the wire drawing machine. The invention also discloses a transmission structure for realizing the transmission method. The wire drawing wheel is fixed with the transmission shaft by the expansion ring so that the axial position of the wire drawing wheel on the transmission shaft can be better adjusted. When the fixed mode of the expansion ring is maintained, flat key connection is additionally arranged between the wire drawing wheel and a transmission wheel. The flat key can effectively prevent the wire drawing wheel from slipping on the transmission shaft, thereby preventing the expansion ring from damaging the transmission shaft. The transmission method and the transmission ...

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24-12-2014 дата публикации

Double-faced retaining dam

Номер: CN104234016A
Принадлежит:

The invention discloses a double-faced retaining dam. The double-faced retaining dam comprises a movable dam face, a supporting rod and a hydraulic rod, a hinged support of the movable dam face is hinged to a horizontal foundation, and the supporting rod and the hydraulic rod are arranged on the same side between the movable dam face and the horizontal foundation and form a herringbone with the movable dam face. The double-faced retaining dam is characterized in that a cross rod perpendicular to the direction of the supporting rod is welded or bolted at the end, contacting with a travel groove, of the supporting rod, barb-shaped structures are formed at the end, close to the movable dam face, in the travel groove, an open face of each barb-shaped structure faces one side, far away from the movable dam face, in the travel groove, and the cross rod is clamped in the barb-shaped structures. The double-faced retaining dam has the advantage that the cross rod perpendicular to the direction of ...

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09-11-2011 дата публикации

Method for supplying spool continuously with a thread and the spool

Номер: CN0101575060B
Принадлежит:

The invention discloses a method for supplying spool continuously with a thread spool. In the method, a coil on the thread spool is divided into an obligated coil and a supplying coil. The obligated coil is located in the inner layer of the coil and winded on part sections of the thread spool; the thread end of the obligated coil extends out of the obligated coil; the supply coil is filled and winded on the section of the other part of the thread spool and coats the outer side of coils of two sections. The invention also discloses a supplying spool realizing the spool supplying method. The invention can satisfy the requirement for supplying spool continuously, improves the production efficiency, avoids materials waste when the thread spool is replaced, is convenient to operate, occupies little space, can save man power and ensures the quality of products.

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07-01-2015 дата публикации

High-strength concrete dam face

Номер: CN104264633A
Автор: ZHU SHUISHENG
Принадлежит:

The invention discloses a high-strength concrete dam face. The dam face is movably connected to a horizontal base under the dam face, and comprises a rectangular steel plate and concrete; the steel plate faces to one side with high water level; the concrete is arranged at the back side of the steel plate; reinforcing ribs are arranged in the concrete; the concrete comprises the following components in parts by weight: 10-30 parts of cement, 50-100 parts of yellow sand, 10-20 parts of coarse materials, and 0.4-1 part of additives; the coarse materials include rubbles and ore slags; the additives contain an efficient water reducing agent, an early strength agent and an antifreezing agent; and the early strength agent is calcium chloride. The steel plate is combined with the concrete, and the reinforcing ribs are added in the concrete, so that the strength of the dam face is effectively improved; and the coarse materials are added in the concrete, and stone with two particle size specifications ...

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14-01-2015 дата публикации

Dam face of retaining dam

Номер: CN104278659A
Автор: ZHU SHUISHENG
Принадлежит:

The invention discloses a dam face of a retaining dam. The dam face consists of a rectangular steel plate and concrete, wherein the steel plate faces one side with a high water level, the back side of the steel plate is provided with the concrete, reinforced ribs are arranged in the concrete, and the concrete comprises the following components in parts by weight: 10-30 parts of cement, 50-100 parts of yellow sand, 10-30 parts of cementing material, 0.2-0.6 part of antifreezing agent, 0.1-0.3 part of swelling agent and 0.1-0.3 part of water reducing agent. A steel plate and concrete combination mode is adopted, and the reinforced ribs are additionally arranged in the concrete, so that the strength of the dam face is effectively enhanced; the antifreezing agent is added in the concrete, so that the anti-freezing property of the dam face is effectively improved; the cementing agent is added into the concrete, so that the concrete can be prevented from a false set.

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23-06-2023 дата публикации

Modeling method of drill point, electronic equipment and computer readable storage medium

Номер: CN116305653A
Принадлежит:

The invention discloses a modeling method of a drill point, electronic equipment and a computer readable storage medium. The modeling method of the drill point comprises the steps that structural parameters of a drill edge are obtained according to machining conditions; a first rectangular coordinate system is established on the end face of the drill edge with the center point of the drill edge as the original point, a second rectangular coordinate system is established with the center axis of the drill edge as the coordinate axis, and an end face contour function of the drill edge is obtained in the first rectangular coordinate system and a side face contour function of the drill edge is obtained in the second rectangular coordinate system according to the structural parameters; and simultaneously establishing the functions of the end surface contours and the functions of the side surface contours so as to obtain a definition domain or a value domain of each function according to a drawing ...

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31-12-2014 дата публикации

Intelligent arc-shaped hydraulic dam

Номер: CN104250965A
Автор: ZHU SHUISHENG
Принадлежит:

The invention discloses an intelligent arc-shaped hydraulic dam. The intelligent arc-shaped hydraulic dam comprises an arc-shaped plate arranged on a base, support rods, hydraulic cylinders and a control device, wherein one side of the arc-shaped plate is movably connected with one end of each support rod; the other ends of the support rods are connected to the hydraulic cylinder; guide grooves are formed in the surface of the hydraulic cylinder; the other ends of the support rods are connected to the guide grooves, and can slide in the guide grooves; the hydraulic cylinder is arranged on the base, and is connected with the control device; the control device comprises a sensor and a computer.

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13-04-1994 дата публикации

Smoke-absorbing, purifying and sterilizing method and device

Номер: CN0001085118A
Принадлежит:

Method for purifying air in workshop and ship uses 1-10% of calcium hydroxide solution or seawater as absorptive liquid and purifying equipment is composed of jet pump, water tank, water suction tube and jet tube. With pumping, absorptive liquid is sucked from water tank via jet tube to nozzle and returned back into water tank via mixing tube. During continuous circulation, vacuum is generated to suck air and fume. Through atomization, absorption of harmful gas and settling of dust, air is purified.

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14-01-2015 дата публикации

Landscape dam surface structure

Номер: CN104278661A
Автор: ZHU SHUISHENG
Принадлежит:

The invention discloses a landscape dam surface structure which is arranged on a hinge base on a horizontal base, wherein a rotating shaft is arranged in the hinge base; the landscape dam surface structure comprises an arc-shaped steel plate A and a steel plate B; the steel plate A faces one side of higher water level; the steel plate B is backed to one side of the higher water level; the upper and lower ends of the steel plate A and steel plate B are connected and formed into a hollow cavity; a reinforcing rib is arranged in the hollow cavity; the upper end of the steel plate A is bent and processed and is welded with the upper end of the steel plate B; iron blocks are arranged at the lower ends of the steel plate A and steel plate B; the steel plate A and the steel plate B are sealed by the iron blocks; the iron blocks are fixedly connected with the rotating shaft and can be rotated around the rotating shaft; an anticorrosion layer coats the surface of the steel plate A. The mode of welding ...

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24-12-2014 дата публикации

Dam surface of water-retaining dam

Номер: CN104230374A
Принадлежит:

The invention discloses a dam surface of a water-retaining dam. The dam surface is mainly a steel-concrete structural plate, wherein the bottom of the steel-concrete structural plate is hinged with a horizontal foundation located below the steel-concrete structural plate by virtue of a hinged support seat, and the steel-concrete structural plate is arranged at the interface between river water and seawater. The dam surface is characterized in that the seawater side surface of the steel-concrete structural plate is coated with an anticorrosive coating which comprises the following components in percentage by weight: 88%-92% of epoxy resin, 7%-8% of nickel powder, 1%-2% of chromium carbide, 0.5%-1% of molybdenum powder, 0.1%-0.5% of silicon, 0.2%-0.6% of manganese and 0.1%-0.9% of tungsten. By virtue of arranging the anticorrosive coating on the seawater side surface of the steel-concrete structural plate, the anticorrosive coating has the effect of preventing the corrosion of seawater to ...

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20-02-2008 дата публикации

Hydraulic lifting dam

Номер: CN0101126231A
Принадлежит:

The invention provides a hydraulically lifting dam, which is characterized in that the invention is provided with a movable dam, the bottom side the movable dam face is articulated with a fixed support by an articulation shaft, a hydraulic cylinder which can form a L-structure hydraulic cylinder to the movable dam face and the length of which is retractable is arranged at the backwater side of the movable dam face. The invention is low in cost, good in safety performance, high in reliability, durable in use and does not block the water; also the invention can automatically open a dam for flood diversion like a shutter dam.

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11-11-2009 дата публикации

Method for supplying spool continuously with a thread spool

Номер: CN0101575060A
Принадлежит:

The invention discloses a method for supplying spool continuously with a thread spool. In the method, a coil on the thread spool is divided into an obligated coil and a supplying coil. The obligated coil is located in the inner layer of the coil and winded on part sections of the thread spool; the thread end of the obligated coil extends out of the obligated coil; the supply coil is filled and winded on the section of the other part of the thread spool and coats the outer side of coils of two sections. The invention also discloses a supplying spool realizing the spool supplying method. The invention can satisfy the requirement for supplying spool continuously, improves the production efficiency, avoids materials waste when the thread spool is replaced, is convenient to operate, occupies little space, can save man power and ensures the quality of products.

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09-05-2023 дата публикации

PCB (printed circuit board) drill bit with improved back drilling plug hole

Номер: CN116079828A
Принадлежит:

The PCB drill bit comprises a drill handle part and a drill edge part connected with the drill handle part, the drill edge part comprises a cutting part and a guide part which are coaxially arranged, the rear end of the cutting part is connected with the drill handle part, the front end of the cutting part is connected with the guide part, and the guide part is provided with a first end connected with the cutting part. The diameter of the front end of the cutting part is larger than that of the first end of the guide part, at least one rear tool face is arranged at the joint of the cutting part and the guide part, a chip groove is formed by spirally extending from the front end to the rear end along the peripheral face of the cutting part, and the rear tool face and the chip groove intersect to form a cutting edge. When the PCB drill bit is used for hole machining, the front end of the cutting part is connected with the guide part, so that the guide part is located in the cutting advancing ...

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07-01-2015 дата публикации

Dam face structure of water retaining dam

Номер: CN104264632A
Автор: ZHU SHUISHENG
Принадлежит:

The invention discloses a dam face structure of a water retaining dam. The dam face structure comprises a rectangular steel plate and concrete, wherein the steel plate faces to one side with high water level; the concrete is arranged at the back side of the steel plate; the bottom end is hinged to a horizontal base under the dam face through a hinge shaft; the upper end and left and right ends of the steel plate are bent to form C-shaped structures, and the C-shaped structures are embedded in the concrete; a corrosion resistant layer is arranged at one side, near water, of the steel plate; reinforcing ribs are arranged in the concrete; and a silica gel material is added in the concrete. The steel plate is embedded in the concrete so as to guarantee tight combination between the steel plate and the concrete; the reinforcing ribs are added in the concrete to guarantee the impact strength of the whole dam face; and the corrosion resistant layer consisting of primer and finishing coat coats ...

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04-01-2006 дата публикации

Overflow dam

Номер: CN0001715563A
Принадлежит:

The overflow dam features its A-shaped steel skeletons arranged in certain interval inside river in the water flow direction. It has fixed piles on river banks, steel cables stretched between each two adjacent steel skeletons and between the steel skeleton and the fixed pile upstream face, and steel wire net spread onto the steel cables, and woven fabric on the surface of the steel wire net. It has low cost, easy construction, firm structure and long term acting. The present invention is used not only in field irrigation but also in blocking burst for fighting blood.

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24-12-2014 дата публикации

Flooding preventing system for underground garage

Номер: CN104234473A
Автор: ZHU SHUISHENG
Принадлежит:

A flooding preventing system for an underground garage comprises a water baffle, a bottom shaft, a hinge support and a driving device. The hinge support is fixed in front of a gate of the underground garage, and the bottom shaft is arranged at the top end of the hinge support. The water baffle is provided with a connecting end and a free end which are oppositely arranged, the connecting end is provided with a shaft hole for mounting the bottom shaft, and the free end rotates along the hinge support by an arc. The driving device is arranged on the land side of the water baffle and provided with a connecting rod and a driving cylinder, wherein the connecting rod is connected with the land side of the water baffle, and the driving cylinder controls the connecting rod to be telescopic. When in rainstorm, the connecting rod is driven to extend by the driving cylinder, and the water baffle rises to be used for block the gate of the underground garage and prevents water from flooding in the underground ...

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