46results about How to "Increase the caliber" patented technology

The invention discloses a 1.2m feedback full-automatic portable emergency satellite communication antenna servo system which comprises a portable box, an antenna structure unit and an antenna control unit, wherein the antenna structure unit and the antenna control unit are arranged in the portable box; the antenna structure unit comprises an antenna mount, a six-section carbon fiber antenna main reflection surface and a feed source component support frame, wherein the six-section carbon fiber antenna main reflection surface and the feed source component support frame are connected to the antenna mount, an antenna auxiliary reflection surface is installed at the end part of the feed source component support frame, a feed source component support plate is installed in the middle of the feed source component support frame, a feed source component is installed on the feed source component support plate, a direction drive device and an elevation drive device are arranged in the antenna mount, and the feed source component comprises a feed horn, a polarizer, a duplexer and a polarization power transmission mechanism. The 1.2m feedback full-automatic portable emergency satellite communication antenna servo system is reasonable in design, convenient in implementation, increased in communication bandwidth, expanded in communication capacity, high in degree of intelligence and working reliability, convenient to carry and good in use effect, provides communication guarantee for the emergency handling and is convenient to popularize and apply.

The invention relates to a method for manufacturing a large-diameter thick-wall seamless steel pipe, which belongs to the field of iron and steel smelting. The method is widely applied to forming a process for manufacturing a large-diameter thick-wall seamless steel pipe which meets the quality requirement on a high-quality steel pipe without extra-heavy type forging and pressing equipment by combining a friction welding technology and a push pipe expanding technology of industries of aerospace, automobiles, petrochemical industry, nuclear power, and the like. Thick-wall steel pipes with the diameter below 700mm are butted into a pipe blank with a certain length by adopting friction welding, and the butted pipe blank is expanded into a demanded specification on a push pipe expanding machine. The large-diameter thick-wall seamless steel pipe which is made of different materials, such as carbon structure, steel alloy structural steel, heat resistant steel, and the like and has different specifications of the outer diameter more than 720mm, the wall thickness 20-130mm and the length not larger than 12,500mm can be produced by adopting the method. The invention can greatly reduce the equipment investment and the production and manufacture cost.

The invention discloses a high-stability high-energy laser receiving lens which performs detection of a target together with a four-quadrant detector. The laser receiving lens includes a diaphragm and a narrow-band interference filter, a first biconvex lens, a second biconcave lens, a third biconcave lens, a fourth biconvex lens and a fifth convex-concave lens which are coaxially arranged from left to right; the diaphragm is arranged on the surface of the left side of the narrow-band interference filter; and the four-quadrant detector (8) is coaxially arranged on a focal plane of the right side of the fifth convex-concave lens. The high-stability high-energy laser receiving lens provided by the invention solves the problems of large relative aperture, high-uniformity light spots and low distortion of a laser receiving lens, and proposes the high-stability high-energy laser receiving lens on the premise of satisfying miniaturization.

The invention discloses an optical lens and electronic equipment comprising the optical lens, and the optical lens sequentially comprises, from an object side to an image side along an optical axis, a first lens element with negative focal power, wherein the object side surface of the first lens element is a convex surface, and the image side surface of the first lens element is a concave surface; a second lens element with focal power, wherein the object side surface of the second lens element is a concave surface, and the image side surface of the second lens element is a convex surface; a third lens element with positive focal power; a fourth lens element with positive focal power, wherein the object side surface of the fourth lens element is a convex surface, and the image side surface of the fourth lens element is a convex surface; a fifth lens element with positive focal power, wherein the object side surface of the fifth lens element is a convex surface, and the image side surface of the fifth lens element is a convex surface; a sixth lens element with negative focal power; and a seventh lens with positive focal power, wherein the fifth lens and the sixth lens form a balsaming lens.

The invention provides amphiphilic tree-like calixarene used as solubilizer or dispersing agent; a tree-like polyoxyethylene ether chain is connected with the upper end of the calixarene; an alkyl chain is connected with the lower end of the calixarene; and the calixarene can be dissolved in a nonpolar organic solvent and water. The amphiphilic tree-like calixarene can lead naproxen and ibuprofenwhich are difficult to dissolve in water, diminish inflammation, relieve pain and reduce the fever to be easy to dissolve in water, can lead anti-cancer drug camptothecin to effectively disperse in water to become a stable suspension.

The invention discloses a direct full-erect-image Newton binocular reflective telescope which consists of two Newton binocular reflective single-tube telescopes bilaterally arranged in the horizontaldirection in a mirror symmetry way and provided with direct full-erect-image inverting assemblies. Each Newton binocular reflective single-tube telescope consists of a first reflecting mirror, a second reflecting mirror and a third reflecting mirror, wherein the first reflecting mirror is a main mirror, and the second reflecting mirror and the third reflecting mirror form the full-erect-image inverting assembly. The optical axis of the first reflecting mirror is selected as the rotation axis. The single full-erect-image inverting assemblies form visible full-erect real images of a target. Thepaired full-erect-image inverting assemblies rotate around the axes with the single-tube telescopes or independently rotate around the axes, or the positions of the third reflecting mirrors are adjusted in the assemblies, the grouped full-erect real images of the targets are output on the eye lens end horizontal line parallel to the horizontal direction defined by the connecting line of the positions and the central points of the main mirrors of the double-tube system by keeping mirror symmetry operation of the left and right image inverting assemblies, the image surfaces of the grouped full-erect real images are consistent in the horizontal direction, the vertical height difference of the image surfaces is effectively eliminated, the central distance between the image surfaces is adjustable, and the double-eye observing demands of different observers can be met.

The invention discloses an evaporative cooling system of rail transit traction equipment, which comprises a water cooling cavity, an air cooling cavity and a liquid cooling loop, and is characterizedin that a main water inlet pipe and a main water outlet pipe are arranged in the middle of the water cooling cavity and are connected with water cooling plates of power modules in a converter; one endof the main water inlet pipe and one end of the main water outlet pipe are communicated through a transformer heat dissipation assembly, the other end of the main water inlet pipe is connected with adriving part, the other end of the main water outlet pipe is connected with a heat exchanger, and the driving part is connected with the heat exchanger; the heat exchanger is located in the heat dissipation air channel of the air cooling cavity and used for dissipating heat absorbed by the liquid cooling loop into air. The invention further discloses rail transit traction equipment which comprises a converter, a transformer and the evaporative cooling system, all the power modules in the converter are located on the two sides of the water cooling cavity respectively, and the transformer is located at one end of the water cooling cavity. The evaporative cooling system and the rail transit traction equipment have the advantages of being high in integration level, simple and compact in structure, good in heat dissipation effect and the like.

The invention discloses a manual stainless steel powder grinding machine. The manual stainless steel powder grinding machine comprises a main body and is characterized in that a feed port is formed in the main body; a fixing part is arranged at the lower end of the main body; a fixing foot is arranged on the fixing part, and a round hole is formed in the fixing part; a protection foot pad is arranged on the fixing foot; a fixing screw is screwed in the round hole; a ring washer is arranged at the upper end of the fixing screw; a hole site is formed in a rear grinding disc, and the rear grinding disc is fixed to the front end of the main body through screws; a spiral shaft is arranged in the main body; one end of the spiral shaft penetrates through the rear grinding disc to be connected to a front grinding disc, and the front grinding disc is arranged on the spiral shaft in a sleeving mode; a screw rod is screwed on the spiral shaft; a spring is arranged on the screw rod in a sleeving mode; an adjusting screw is arranged at the other end of the screw rod and locks the front grinding disc to extrude the front grinding disc towards the main body to be connected to the rear grinding disc; the other end of the spiral shaft is matched with a crank, and the crank is arranged on the spiral shaft; and a handle is arranged on the crank. The manual stainless steel powder grinding machine has the beneficial effects that stainless steel is adopted, and therefore the environment can be protected, and the safety can be achieved; and the caliber of the feed port is increased so that the feeding amount can be increased, the powder grinding area of the grinding discs can be increased, and therefore the grinding efficiency can be improved.

The invention discloses a novel Nb/Al multilayer film Laue lens applied to hard X-ray wave band focusing. The novel Nb/Al multilayer film Laue lens is characterized in that Nb is used as an absorptionlayer of the Laue lens, and Al is used as a spacing layer. Compared with a Laue lens made of a traditional material, by using a novel material combination of Nb/Al, the higher diffraction efficiencyis achieved, the light intensity of a focusing light spot is effectively improved, the diffraction efficiency peak width calculated through the material combination is 3-4 times the diffraction efficiency peak width calculated through a traditional material combination under the same condition, the precision required during splice polishing is greatly lowered, and a preparation process is simplified. Meanwhile, stress of Al is smaller than that of a traditional Si spacing layer, the aperture of the Laue lens can be increased, thus the light transmission amount of the Laue lens is increased, the light intensity of the focusing light spot is further enhanced, and focusing performance is optimized.

The invention discloses a laser dazzling optical system, which is characterized by comprising a laser source, a collimating lens group, a dodging sheet, a first-stage variable-magnification beam expanding system and a second-stage fixed-magnification beam expanding system. The laser source is used for emitting laser; the collimating lens group collimates the laser emitted by the laser source into parallel light beams; the dodging sheet is used for converting the parallel light beams into uniform parallel light beams; the first-stage variable-magnification beam expanding system is used for expanding the uniform parallel light beams, so that the aperture of the emergent parallel light beams is increased and adjustable; and the second-stage fixed-magnification beam expanding system is used for increasing the aperture of the light beams emitted in parallel again so as to realize a laser dazzling effect. According to the laser dazzling optical system provided by the invention, the action distance and the action area of the light beams are increased, the light beam intensity is more uniform and stable, and no damage is caused to human eyes.

An airborne conformal bearing antenna of the present invention comprises a reflecting plate, a microstrip antenna, a radio frequency connector and a skin, wherein the reflecting plate is of a bearing structure, and the inner side of the reflecting plate is provided with a rear-end device and a fixing interface of the radio frequency connector; the microstrip antenna is fixed at the outer side of the reflecting plate; the skin has a wave-transparent function and is laid at the outer side of the microstrip antenna, and the appearance of the skin is consistent with the aerodynamic appearance of an airplane. After integral forming, the mechanical connection between the conformal antenna and an aircraft structure is realized through the installation holes in the reflecting plate. The airborne conformal bearing antenna has excellent structural rigidity, and the aperture of the airborne conformal antenna can be remarkably improved; the antenna has the capability of hanging a rear-end active device, reduces the loss between the rear-end active device and the antenna, and further improves the power of a detection system.

The invention discloses an externally applied traditional Chinese medicine composition for treating rheumatic arthritis and a preparation method thereof, the externally applied traditional Chinese medicine composition comprises at least two layers of base cloth and an external dressing, a layer of heat conduction material is laid between every two adjacent layers of base cloth, and the external dressing is coated on the surface of the uppermost layer of base cloth; and the external dressing is prepared from notopterygium root, radix angelicae pubescentis, scorpion grass, large-leaved gentian,radix clematidis, caulis spatholobi, cassia twig, peach kernel, bighead atractylodes rhizome, radix paeoniae rubra, angelica sinensis and the like. The traditional Chinese medicine composition is reasonable in process design and proper in component proportion, the prepared traditional Chinese medicine composition needs to be used by assisting infrared rays, heat can be generated through the infrared rays in the using process, and therefore hot compress is conducted on joints, and arthralgia is relieved while the effect of the external dressing is improved; the external dressing combines the functions of clearing heat, dispersing blood stasis, resolving dampness, dispelling wind, promoting blood circulation and tonifying kidney, and can be used for effectively treating rheumatism or rheumatoid arthritis and other diseases.

The invention discloses a balanced direct-acting type surge relief valve. A sleeve (3) is arranged on a valve seat (2) in a valve body (1), the sleeve (3) is positioned by a valve deck (9), an overflow hole for connecting an inlet end (1.1) with an outlet end (1.2) is formed in the side wall, close to one end of the valve seat (2), of the sleeve (3). A sealed adjusting cylinder (4) corresponding to the inlet end (1.1) of the valve body (1) is arranged in the sleeve (3). The inlet end (1.1) and the outlet end (1.2) are connected or disconnected when the adjusting cylinder (4) moves up and down. A piston cylinder (7) is mounted on the inner side, close to the valve body (1), of the valve deck (9). A piston (6) is arranged in the piston cylinder (7). The adjusting cylinder (4) is connected with the piston (6) through a valve rod (5). One end of a communicating pipe (8) is connected with the valve rod (5), and the other end of the communicating pipe (8) penetrates the valve deck (9), extends out of the outer side of the valve deck (9) and is connected with a buffer device. The balanced direct-acting type surge relief valve has the beneficial effects that the surge relief valve is capable of being suitable for the large-calibre high-pressure working conditions, real-time fast opening can be achieved when the water attack happens, stable, controllable and slow closing can be achieved after pressure relief is completed, and safe and effective operation of a pipe network system can be guaranteed.

The invention discloses a novel low-profile high-gain vehicle-mounted antenna. The vehicle-mounted antenna comprises a metal layer, a matching circuit and an automobile metal shell, wherein an annularnotch is formed in the top edge of the metal layer; the length of the inner ring of the annular notch determines the center frequency of the working frequency interval of the antenna; the metal layeris connected with a signal source after passing through the matching circuit; and the metal layer and the matching circuit are mounted at the top part of the automobile metal shell, so that radiationand collection of signals can be realized by fully utilizing the metal shell. Compared with a traditional shark fin antenna and a glass antenna, the novel low-profile high-gain vehicle-mounted antenna is low in profile, capable of fully utilizing the automobile body as the bottom of the antenna, and higher in gain; the working frequency of the antenna can be adjusted in a large range through a tuning circuit and is not influenced by the structure of the vehicle body, so that the antenna has the advantages of being convenient to install and wide in application range, and can be used for replacing various existing vehicle-mounted communication antennas.