47results about How to "Guaranteed air gap" patented technology

The invention relates to a teleconverter for an wide-angle high-magnification zoom lens, wherein a front group A with a negative focal power and a rear group B with a positive focal power are sequentially arranged in the optical system of the teleconverter along the left-to-right incident direction of a light ray; the front lens group A is sequentially provided with a negative meniscus lens A-1 and a biconcave lens A-2, and the lens rear group B is a glued group formed by airtightly connecting a negative meniscus lens B-1 with a biconvex lens B-2; the mechanical structure of the teleconverter comprises a lens cone, a front group installation seat and a rear group installation seat are opened in the lens cone, the front lens group A is placed on the front group installation seat and tightly pressed by a front press ring, the rear lens group B is placed on the rear group installation seat and tightly pressed by a front press ring, and an AB space ring is arranged between the biconcave lens A-2 and the negative meniscus lens B-1. The teleconverter has the advantages of being high in zoom ratio, large in wide angle, high in adaptivity and the like, as well as is beneficial to expansion for the view field angle of the wide-angle zoom lens, and is good in imaging effect in the high-magnification zoom process of the zoom lens.

The invention relates to an f16mm high-definition low-distortion semi-group mobile industrial lens. The lens comprises a main lens cone, a front group of lenses, an iris diaphragm and a rear group of lenses, wherein a front group lens cone and a rear group lens cone connected to a rear side of the front group lens cone are arranged in the main lens cone; a rear end of the main lens cone is provided with a connection seat; the front group of lenses is successively installed in the front group lens cone along a light incident direction; the iris diaphragm is installed in the rear group lens cone; and the rear group of lenses is installed in the rear group lens cone and the connection seat. The front group of lenses is formed by a first negative crescent lens, a first double convex lens, a second double convex lens and a first agglutination group connected to a first double concave lens in a sealing mode. The rear group of lenses is formed by a second double concave lens, a second agglutination group connected to a third double convex lens in the sealing mode, a fourth double convex lens, a positive crescent lens and a third agglutination group connected to a second negative crescent lens in the sealing mode. The main lens cone is provided with a diaphragm adjusting mechanism and a backseat lens cone is provided with a micro-focusing mechanism. The structure of the mobile industrial lens is simple and distortion of shooting to a close object is less than 1.1%.

The invention relates to a pick-up lens for a high-resolution single group movement industry. A front group A with negative focal power, an iris diaphragm C and a rear group B with positive focal power are sequentially arranged in an optical system of the lens along the incident direction from left to right of light, wherein the front group A is sequentially provided with a positive meniscus lens A-1, a positive meniscus lens A-2 and a negative meniscus lens A-3, and the rear group B is sequentially provided with a glued group with tight joint of a biconcave lens B-1 and a biconvex lens B-2, a biconvex lens B-3 and a positive meniscus lens B-4. The pick-up lens disclosed by the invention has the characteristics of high resolution, large target surface, low distortion, small minimum photographic distance and the like, and can be in adaptation with a high-resolution CCD (charge coupled device) or a CMOS (complementary metal oxide semiconductor) video camera, realize high-resolution videography, simultaneously realize clear imaging with minimum photographic distance of 0.3m and enable the distortion to be lower than 1%.

The invention provides a power generator and a wind generating set. The power generator comprises a rotor, a stator, and an air gap formed between the stator and the rotor along the radial direction of the power generator. The power generator also comprises a first air gap control assembly and a second air gap control assembly, wherein the first air gap control assembly is arranged on the rotor, and has a first magnetic pole; the second air gap control assembly is arranged on the stator and has a second magnetic pole; and the first magnetic pole and the second magnetic pole face each other, and have the same polarity. According to the power generator of the invention, the stator and the rotor can be supported through the repulsive force between the magnetic poles, and stability of the air gap can be effectively ensured.

The invention discloses a method for realizing high-precision imaging of a lens, which comprises a lens barrel, a lens and a centering mechanism arranged on the lens barrel, and comprises the following steps of: 1, the lens is limited in a barrel cavity through a lens limiting cavity formed between two adjacent space rings; 2, the lens located in the lens limiting cavity is jacked through a flat head jackscrew; and 3, dispensing is conducted on the glue injection hole through a needle tube. According to the invention, the centered and ground lens is used for replacing a centered and turned lens; the direct centering and grinding lens has the advantages that firstly, the outer diameter of the lens can be directly machined to the outer diameter size matched with the lens barrel, and the fittolerance of the lens and the lens barrel during assembly can be controlled; secondly, the contact surface of the lens and a space ring is directly ground to form a ring opening, and an air gap between the lenses is guaranteed; and thirdly, the lens is directly machined, a lens frame of the lens does not need to be produced and turned, the lens machining period is shortened, and meanwhile the lensproduction cost is reduced.

The invention relates to a high-resolution day-and-night dual-use economical lens. In an optical system of the lens, a lens-group front group A with negative focal power and a lens-group rear group B with positive focal power are successively arranged at an incidence direction from left to right along light. An IR-CUT double filter C is arranged between the front group A and the rear group B. The front group A comprises a negative crescent lens A-1, a glue group closely connected to a double-concave lens A-2 and a negative crescent lens A-3 which are successively arranged from left to right. The rear group B comprises a double-convex lens B-1, a negative crescent lens B-2 and a double-convex lens B-3 which are successively arranged from left to right. An optical index of the high-resolution day-and-night dual-use economical lens is high, an optical target surface is large and a resolution ratio is higher than five million pixels. The lens can be used with a 16:9 system camera with 1 / 2.7'' high definition. A camera shooting system can realize a high definition shooting requirement to a scenery in a highlight dynamic change scope environment and there is little distortion.

The invention provides a flashlight component and terminal equipment applying the same. The terminal equipment comprises a main plate and a cover body; the cover body covers the main plate and is provided with a mounting hole; the flashlight component comprises at least one flashlight and a flashlight shade, wherein the flashlight is arranged on one side, facing to the cover plate, of the main plate and is positioned in the mounting hole; the flashlight shade is positioned in the mounting hole, the flashlight is positioned between the main plate and the flashlight shade, the flashlight shade comprises a shade body arranged with the main plate in parallel and at least one positioning column, the cover shade is matched with the mounting hole, and the positioning column extends from the shade body to the main plate and is propped against the main plate. The flashlight component provided by the invention has the benefits that in a mounting state, the shade body is arranged on the flashlight in a covering manner; the positioning column is propped against the main plate, so that the shade body and the main plate can be directly propped against the positioning column to limit a space, further a space between the shade body and the flashlight is accurately controlled, and the radiation effect of the flashlight is optimized.

The invention relates to a high-resolution whole-set mobile industrial photographing camera lens. The high-resolution whole-set mobile industrial photographing camera lens comprises a front set A with negative focal power, a variable light diaphragm C and a rear set B with positive focal power, which are arranged in sequence along light from a left incident direction to a right incident direction, wherein the front set A is composed of a positive crescent-shaped lens A-1, a double-convex lens A-2 and a double-concave lens A-3; the double-convex lens A-2 and the double-concave lens A-3 are tightly connected to form a first gluing set; the rear set B is composed of a double-concave lens B-1, a double-convex lens B-2, a double-convex lens B-3 and a negative crescent-shaped lens B-4; the double-concave lens B-1 and the double-convex lens B-2 are tightly connected to form a second gluing set; the double-convex lens B-3 and the negative crescent-shaped lens B-4 are tightly connected to form a third gluing set. The high-resolution whole-set mobile industrial photographing camera lens provided by the invention is reasonable in optical structure design, and has high resolution, accurate and stable actions including focusing and the like and has a good hand feeling.

The invention relates to an industrial high-definition and low-distortion lens with the F1.4 large aperture and the 12 mm focal length. The industrial high-definition and low-distortion lens comprisesan optical system arranged in a lens structure, and the optical system comprises a front lens group A, a diaphragm C and a rear lens group B which are sequentially arranged from front to back in thelight ray incident direction, wherein the front lens group A has the negative focal power, and the rear lens group B has the positive focal power; the front lens group is composed of a glued group formed by a negative crescent lens A1, a negative crescent lens A2, double convex lenses A3, a positive crescent lens A4, a positive crescent lens A5 and a positive crescent lens A6 in a compactly connected mode; and the rear lens group is composed of a glued group formed by double concave lenses B1 and double convex lenses B2 in a compactly connected mode, double convex lenses B3 and a positive crescent lens B4. The industrial lens is high in optical index, large in light transmission, low in distortion and high in resolution.

The invention relates to a split type photoelectric encoder which comprises a circuit board, a rotating shaft, a code disc, a base and a fixing assembly. The fixing assembly comprises a fixed ring, awedge-shaped supporting block and a rotor, wherein the fixed ring, the wedge-shaped supporting block and the rotor are sleeved in the base. The fixed ring can drive the rotor to rotate on the base sothat the rotor is supported by the wedge-shaped supporting block on the base and the height is changed. When the rotor is at a highest position, the rotor abuts against the lower surface of the rotating shaft, thereby ensuring an air gap between photoelectric converting chips on the code disc and the circuit board. Through a locking device, the rotating shaft of a motor is fixed to the rotating shaft of the photoelectric encoder. Then the rotor is rotated to a lowest position for realizing normal operation. The split type photoelectric encoder can ensure field safe and simple mounting, and ensures an air gap between the code disc and the photoelectric converting chip on the circuit board. Compared with an integrated coder, the split type photoelectric encoder has advantages of small size and height reduction for about 15mm. The split type photoelectric encoder better satisfies the requirement for servo equipment miniaturization, and the encoder body is made of a plastic material. Furthermore a pair of bearings is saved, and the product cost is reduced by about 30%.

The invention relates to an electrical zooming and focusing six million-pixel day and night dual-purpose lens. The optical system of the lens is provided with a front lens group A with negative focal power and a rear lens group B with positive focal power sequentially along the light incident direction from left to right; a variable diaphragm C is arranged between the front group A and the rear group B; the front group A comprises a lens A-1, a lens A-2 and a lens A-3 which are arranged in sequence from left to right; the rear group B comprises a lens B-1, a lens B-2, a lens B-3, a gluing group for close connection of a lens B-4 and a lens B-5 and a gluing group for close connection of a lens B-6 and a n lens B-7 which are arranged in sequence from left to right. Through the motor accurately and electrically adjusting the lens, the view angle of a monitoring field can be conveniently selected; when the view field of the monitoring filed needs to be conveniently and accurately switched, adopting the lens is important, and the optical design is optimized; and the lens can be applied to the newest 1 / 1.8'' large-target plane CCD chip on the market, and monitoring needs of a supper large view angle can be met.

The invention discloses a double-stator wind driven generator with a pivotal bearing supporting a middle rotor. The generator comprises an outer stator, an inner stator and the rotor arranged between the outer stator and the inner stator. The generator is simple in structure, radial load of a center shaft is reduced, and good heat dissipation and cooling effects of the inner stator are guaranteed.

The invention relates to a low-distortion high-resolution day and night lens. The optical system of the lens is provided with a former group A and a latter group B which are arranged along incident direction of light rays from the front to the back in turn. The former group A comprises a gluing group formed by a convex-concave type lens A-1, a convex-concave type lens A-2 and a convex-concave type lens A-3 which are arranged from the front to the back in turn through close connection, and a double concave lens A-4. The latter group B comprises a plane convex lens B-1. The low-distortion high-resolution day and night lens is large in relative aperture so that images can be shaped more easily; resolution is high so that the low-distortion high-resolution day and night lens can be suitable for the requirement of two-million-pixel high-definition video photographing; and distortion is low so that clear imaging can be realized in a shorter object distance.

The invention relates to a high-resolution camera shooting lens for a full-group mobile industry. According to the lens, a front group A, an iris C and a rear group B are sequentially arranged along an incident direction of light rays from left to right in an optical system, wherein the front group A is sequentially provided with a negative meniscus lens A-1, a biconvex lens A-2, and a first gluing group formed by tightly connecting a biconvex lens A-3 and a biconcave lens A-4; and the rear group B is sequentially provided with a second gluing group formed by tightly connecting a positive meniscus lens B-1 and a negative meniscus lens B-2, a negative meniscus lens B-3, and a third gluing group formed by tightly connecting a biconvex lens B-4 and a plano-concave lens B-5. The high-resolution camera shooting lens has the characteristics of high resolution, large target surface, low distortion, small close-up distance and the like and can be matched with a high-definition charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS) camera, the high-definition video shooting is realized, the clear imaging with the close-up distance of 0.3m can be realized, and the distortion rate is less than 1 percent.

The invention relates to a vertical tractor and a screw elevator using the vertical tractor. In the vertical tractor, a brake at the upper end of a rotating shaft comprises a friction disc which is assembled on the rotating shaft in a rotating stop manner and a brake plate which is positioned above the friction disc; an armature is arranged below the friction disc; a positioning shaft shoulder with an upward step surface is arranged on the rotating shaft; when an electromagnetic coil is powered off, the armature pushes the friction disc to compress the brake plate under the action of a brake spring, and a gap is reserved between the armature and the upper end surface of an upper end cover; when the electromagnetic coil is powered on, the armature moves downwards to tightly adhere to the upper end surface of the upper end cover under the action of electromagnetic force, and simultaneously, the friction disc moves downwards and is stopped above the positioning shaft shoulder under the action of gravity; and a gap is reserved between each of the upper side and the lower side of the friction disc and the brake plate as well as the armature. According to the vertical tractor and the screw elevator using the vertical tractor, limited operation of the friction disc is realized; in a release state of the brake, an air gap on the upper side and the lower side of the friction disc can beensured; and the problem that noises are easily produced when the friction disc rotates to rub the brake plate or the armature is solved.

The invention relates to an electric motor for high-temperature applications. The electric motor comprises a rotor and a stator. The stator is provided with a hollow cylindrical iron core-free stator winding made of stoved glaze wires. Furthermore, a soft-magnetic return which encloses the stator winding is provided. According to the invention, the stator winding is supported by a hollow cylindrical supporting sleeve cylinder which is internally abutted against the stator winding along the radial direction.

The invention relates to a photoelectric encoder. The photoelectric encoder comprises a circuit board, a rotating shaft, a code disc and a base, wherein the base comprises a bottom plate and a supporting plate; fixing components are symmetrically arranged on two sides of the annular supporting plate; each fixing component comprises a fixing plate, a driving rod, a first spring, a first handheld block and a locking part; each driving rod penetrates the annular supporting plate and is fixedly connected with the fixing plate; the first spring sleeves the middle portion of the driving rod; the two fixing plates are oppositely abutted against the outer wall of the lower part of the rotating shaft under the action of the first spring, so that a gap is reserved between the upper surface of the code disc and the lower surface of the circuit board; the driving rods are connected with the annular supporting plate through the locking parts. According to the design, a bearing is omitted through arrangement of the fixing components, the thickness of the encoder is effectively reduced while the air gap between the code disc and the photovoltaic conversion chip on the circuit board is ensured, the cost is saved, the volume is small, and the photoelectric encoder is more suitable for the requirement of miniaturization of a servo device.

The invention discloses a power distribution cabinet system, which comprises a cabinet (6). A primary electrical system, a switch cabinet, a contact box and a PT trolley are disposed in the cabinet (6). A supporting plate (3) is arranged on the lateral side of the PT trolley, the upper end of the supporting plate (3) is connected with a contact arm (5), and a fuse (4) is arranged in the contact arm (5). The PT trolley includes an upper layer and a lower layer, the surface of the upper layer is connected with a potential transformer (1), and the surface of the lower layer is connected with an arrester (2). The upper end of the arrester (2) is connected with a copper bar external lead arranged at a port of the fuse (4) through a conductive connector. The power distribution cabinet system has the advantages that the system is reasonable in layout, the structure of the system is greatly optimized with the internal fuse, and due to the design of mounting the arrester and the transformer in a layered manner and the design of a front arrester mounting plate, air clearance between electrical devices can be guaranteed, and potential risks of compound insulation can be relieved.

The invention discloses a multi-layer graphite heat conducting plate and a preparation method thereof, wherein the preparation method comprises the following steps: selecting a plurality of high heatconducting graphite sheets according to the set thickness, and pasting the graphite sheets together to form a graphite heat conducting plate by a thin surface glue; and cutting the graphite heat conducting plate into a set shape, placing the graphite heat conducting plate in a deposition device, taking a macromolecular material as a deposition medium, carrying out CVD chemical vapor deposition, and generating an insulating macromolecular thin film on the surface of the graphite heat conducting plate, wherein the deposition thicknesses of the macromolecular thin films on the upper surface, thelower surface and all sides of the graphite heat conducting plate are the same. The invention has certain bending performance and high thermal conductivity, can be made into various shapes, and meetsuse of various types of environmental spaces.

The invention relates to a high-resolution whole-set mobile industrial photographing camera lens. The high-resolution whole-set mobile industrial photographing camera lens comprises a front set A with negative focal power, a variable light diaphragm C and a rear set B with positive focal power, which are arranged in sequence along light from a left incident direction to a right incident direction, wherein the front set A is composed of a positive crescent-shaped lens A-1, a double-convex lens A-2 and a double-concave lens A-3; the double-convex lens A-2 and the double-concave lens A-3 are tightly connected to form a first gluing set; the rear set B is composed of a double-concave lens B-1, a double-convex lens B-2, a double-convex lens B-3 and a negative crescent-shaped lens B-4; the double-concave lens B-1 and the double-convex lens B-2 are tightly connected to form a second gluing set; the double-convex lens B-3 and the negative crescent-shaped lens B-4 are tightly connected to form a third gluing set. The high-resolution whole-set mobile industrial photographing camera lens provided by the invention is reasonable in optical structure design, and has high resolution, accurate and stable actions including focusing and the like and has a good hand feeling.

The invention discloses a mine explosion-proof lifting device with a built-in permanent magnet motor, which comprises a main shaft fixed on the ground; a permanent magnet motor stator fixed on the main shaft; The outer rotor of the permanent magnet motor is fixed and rotated relative to the main shaft by a web; the reel is connected with the outer rotor of the permanent magnet motor through an isolation disc; the outer circumferential surface of the outer rotor of the permanent magnet motor The radial distance from the inner wall of the drum is greater than a preset value. The isolation plate ensures that the reel is independent of the outer rotor of the permanent magnet motor and runs synchronously with it, and the reel is independent of the outer rotor of the permanent magnet motor to ensure the air gap between the outer rotor of the permanent magnet motor and the stator core The change value of the flameproof gap of the flameproof joint surface of the motor due to the external load is within the preset range. The mine explosion-proof hoisting equipment with a built-in permanent magnet motor of the present invention can improve the reliability and running stability of the mine explosion-proof hoisting equipment with a built-in permanent magnet motor.

A method for manufacturing an axial flux machine adapted for generating a magnetic flux along the axis of rotation, includes the manufacturing of one or more stators, having the following steps: providing a surface comprising one or more flat support surfaces perpendicular to the axis of rotation; positioning one or more boundary elements, individual stator elements, and a ring element on the one or more support surfaces. At least one of the boundary elements is a cooling element adapted for conducting heat. The stator elements each has a ferromagnetic core and an electric winding wound around the ferromagnetic core, and filling the empty space between the outer circumference, the stator elements and the ring element with an electrically insulating filling material.

The invention discloses a motor with a bearing dismounting auxiliary device, and relates to the field of motor bearing dismounting. According to the structure of the device, an upper end cover and a lower end cover are located on the upper side and the lower side of a stator and a rotor respectively, the upper end cover and a center rotating shaft of the rotor are assembled into a whole through an upper bearing, and the lower end cover and the center rotating shaft of the rotor are assembled into a whole through a lower bearing; bearing bayonets on the inner sides of the upper end cover and the lower end cover are fixedly connected with the same detacher supports, the detacher supports are cylindrical, the inner diameter of each detacher support is matched with the size of an outer bearing seat of the upper bearing or the lower bearing, end plates of the detacher supports are provided with through holes matched with the diameter of a central rotating shaft, and a gap is ensured to be smaller than an air gap; a plurality of evenly distributed detacher connecting plates are fixedly connected to the periphery of the detacher support, an annular groove is formed in a central rotating shaft of the rotor, and a shaft check ring is installed in the annular groove. The device is simple in structure and does not appear or be used in other similar occasions, and the achieved functions greatly meet the actual requirements.

The invention relates to a high-resolution manual zoom camera lens and its control method, characterized in that: the optical system of the lens is respectively provided with a front group A with a negative focal power, an optical focal The rear group B with positive power and the variable diaphragm C between the front group A and the rear group B; the front group A is composed of negative crescent lens A‑1, double concave lens A‑2 and double Convex lens A-3 composed of glued film, high-resolution manual zoom camera lens has simple structure and reasonable design, which is beneficial to conveniently select the field of view of the monitoring site through manual adjustment of the lens, and find a focal length adjustment in a certain range An observation range that satisfies the user.