42results about How to "Adjust the diameter" patented technology

The invention discloses a detecting device and a detecting method for dark field cofocal subsurface based on two coaxial conical lenses. Light emitted by a point light source passes through a collimating lens to form parallel light; the parallel light sequentially passes through a beam expander, a conical lens I and a conical lens II to form ring light; the ring light is converged to a to-be-tested sample by a beam splitting prism and an objective lens; reflected light and scattered light which are emitted by the to-be-tested sample pass through the objective lens and the beam splitting prismsequentially and enter a detection complementary diaphragm; the reflected light is shielded by the detection complementary aperture; the scattered light passes through the detection complementary diaphragm, a collecting lens and a detection pinhole sequentially and enters a photoelectric detector. The ring light illumination with adjustable duty factor is realized by adopting a beam expander and one group of symmetrically-putted coaxial conical lenses; dark field cofocus is realized by in combination with the detection complementary diaphragm; the problems of low signal-noise ratio, non-adjustable duty ratio of a shield type ring optical generator and great energy loss in the detection of the subsurface by an ordinary cofocal microtechnique are solved; the detecting device and the detecting method are suitable for subsurface nondestructive testing.

The invention discloses a coiling device for a cable and a wire. The device comprises a top plate and side plates, wherein a first motor is arranged in the middle of the top part of the top plate, andthe bottom part of the first motor is in transmission connection with a rotating plate at the bottom part of the top plate through a rotating shaft; a second motor is arranged in the rotating plate,and chutes are formed in two sides of the second motor in the rotating plate; and the bottom part of the second motor is in transmission connection with first tapered teeth through the rotating shaft.According to the device, the second motor is capable of driving the first tapered teeth and second tapered teeth to rotate so as to adjust the space between two coiling rods; when the cable coils thetwo coiling rods, the coiled cable can be simply removed by decreasing the space between the two coiling rods; with the adoption of the abovementioned mode, the cable can be coiled and removed at thesame time, so that the convenience of storing in later period is ensured.

The invention relates to a method for drawing a quartz glass rod by a coreless rod through a continuous melting method. According to the method disclosed by the invention, a drawing device comprises a furnace body which is internally provided with a tungsten-molybdenum crucible, a material platform is arranged at the bottom of the tungsten-molybdenum crucible, a discharge hole is formed in the material platform, a continuous melting furnace cover is arranged on an upper port of the furnace body and comprises a bottom cover and an upper cover, an installation hole is formed in the middle part of the bottom cover and is internally provided with a connecting cylinder, the upper end of the connecting cylinder is fixedly connected with the upper cover, a boss used for locking the tungsten-molybdenum crucible is arranged on the inner wall at the lower end of the connecting cylinder, a sealing mechanism is arranged between the bottom cover and the connecting cylinder, an upper cover lifting regulation mechanism is arranged between the bottom cover and the upper cover, a top cover is arranged above the upper cover and is fixedly connected with the upper cover through a fastener, and a feeding hole is formed in the top cover. According to the method disclosed by the invention, as a core rod and a former are not arranged in the tungsten-molybdenum crucible, the tungsten-molybdenum crucible can be used for enlarging the specification of the quartz glass rod from the traditional 2-30mm to 2-60mm, and the problem of a black core of the quartz glass rod can be solved by virtue of coreless rod drawing.

The invention discloses a tensile high-speed data cable, which comprises eight copper conductor pairs, a second insulating layer, a polyester tape layer, a second aluminum composite layer and a braided shielding layer, wherein the second insulating layer coats two copper conductor pairs of the eight copper conductor pairs; the other six copper conductor pairs in the eight copper conductor pairs are adhered to the second insulating layer; the polyester tape layer is coated on the other six copper conductor pairs in the eight copper conductor pairs; the second aluminum composite layer is coated on the polyester tape layer and consists of a polyester film layer and an aluminum film layer which is coated on the surface of the polyester film layer; the braided shielding layer is coated on an aluminum foil layer and comprises a plurality of strands of aramid fibers of which the sections are circular; a flat copper wire of which the section is rectangular and which is coated with a tin layer is lapped on the aramid fibers; and the braided shielding layer is braided by the plurality of strands of aramid fibers. By the high-speed data cable, the tensile fatigue resistance is improved, and the shielding performance of the cable is improved.

According to the coaxial positioning device capable of simultaneously measuring the azimuth angles and the inclination angle of a tubular pile, the outer contour of the positioning device can be expanded and adjusted, and the positioning device can be suitable for pipe piles with different inner diameters and can smoothly pass through the uneven condition of the inner wall of the pipe pile within 5 mm; the inclination angle and the azimuth angle of the tubular pile can be measured within the depth range from at least one half of the height of the inclinometer at the bottom of the tubular pile to one half of the depth of the inclinometer at the top of the tubular pile, so that the measurement precision is improved; the problems that after field tubular pile construction is completed, the inclination measuring process is tedious (an existing device needs to pre-embed measuring parts before piling), coaxiality of inclinometer and tubular pile is poor (an inclinometer support is difficult to center), the same testing instrument cannot be used for tubular piles with different diameters, and full-depth measurement of tubular pile is difficult (the flatness of inner wall of tubular pile and the section of pile splicing position), and the inclination angle and the azimuth angle of the tubular pile cannot be measured simultaneously are solved.

The invention provides a batch synthesis method for green fluorescent nano carbon clusters. The method comprises the following steps: 1) taking reductibility organic micromolecules as a carbon nano cluster precursor; 2) employing amino acid and polypeptide or soluble biomacromolecules as an auxiliary reagent; 3) mixing the carbon nano cluster precursor and the auxiliary reagent, dissolving a mixture in an organic polar solvent, adding phosphoric acid for reacting for a while at constant temperature, stopping the reaction after the color of a reaction solution is changed from transparent to brown; and 4) centrifuging the reacted mixing solution, removing the impurity, gradually dialyzing and separating, removing an unreacted reactant and a few of monodisperse carbon dots, through rotary-evaporation concentration and freeze drying processing, obtaining the high-purity fluorescent nano carbon clusters powder. According to the invention, one-step batch synthesis of fluorescent clusters is realized, further passivation processing is not required, and the fluorescent quantum yield of the prepared nano carbon clusters is higher than that of the single carbon dot prepared with same batch.

The invention provides molecular sieve production equipment which comprises a vibration assembly, a stretching assembly and a rotating assembly, the vibration assembly is used for vibrating a molecular sieve and improving the sorting efficiency, and the stretching assembly is used for adjusting the pore size of molecular sieve sorting and assisting in improving the sorting specification. In the sorting process, a threaded rod rotates in a threaded sleeve, so that a gap between the lower ends of two rotating baffles is adjusted, the size of staggered apertures in two sliding filter plates is adjusted, the diameter size during sorting is conveniently adjusted according to requirements, adjustment is more convenient, and the application range is wider. A rolling wheel continuously strikes a striking plate through rotation of a rotating plate, so that a lifting plate ascends and descends, the lifting plate is conveniently and elastically ascended and descended through a spring, meanwhile, a material storage box and a rotating baffle plate are ascended and descended, and the material storage box can be driven to ascend and descend and shake through a first motor at the same time; and during screening, blocking is avoided, and the sorting effect is enhanced.

The invention relates to the technical field of steel bar machining devices and discloses a steel bar stretching unit used for gear ring type steel prestress. The steel bar stretching unit comprises aunit body, a trapezoidal block is fixedly mounted on the left side of the top of the unit body, a long rod is movably connected to the top of the trapezoidal block in a sleeved mode, one end of the long rod penetrates through the trapezoidal block, extends to the exterior of the trapezoidal block and is fixedly connected with a round button in a sleeved mode, the other end of the long rod sequentially penetrates through the trapezoidal block and the unit body, extends into the unit body and is movably connected with positioning blocks in a sleeved mode, and the outer surface of the long rod is movably connected with rigid springs in a sleeved mode, wherein the rigid springs are located between the positioning blocks and the inner wall of the unit body. One end of a to-be-stretched steel bar is wound around a roller and a cylinder and penetrates though the space between two idler wheels and two limiting blocks, at the moment, a motor is stated to enable the steel bar to pass though thepositioning blocks, the influence of the self gravity of the steel bar is avoided because of cooperation between the positioning blocks and the long rod as well as cooperation between the positioningblocks and the rigid springs, uniform force bearing is realized, thus the strength of the stretched steel bar is same, and the practicability of the stretching unit is improved.

The invention relates to the technical field of furniture manufacturing, and discloses an economical and environment-friendly polishing device for cylindrical furniture manufacturing. The economical and environment-friendly polishing device comprises a machine shell, an electromagnetic device is fixedly connected to the interior of the machine shell, a guide rod is fixedly connected to the surface of the electromagnetic device, and a circular ring is slidably connected to the surface of the guide rod; and a first magnetic block is fixedly connected to the end, close to the electromagnetic device, of the circular ring, a first sealing shell is rotationally connected to the surface of the circular ring, and a first long plate is fixedly connected into the first sealing shell. According to the economical and environment-friendly polishing device for cylindrical furniture manufacturing, a rotating wheel drives a second push rod to rotate, the second push rod drives a connecting rod to rotate through a second notch, the connecting rod drives a sliding block to slide in the first long plate, and when at the two ends of the first long plate, and the connecting rod drives the first push block to slide on the first notch, so that the waste residue recycling effect is achieved, defects on the surface of wood can be repaired by collecting waste residues, and the effects of saving and environmental protection are achieved.

The invention discloses a precise numerical control intelligent winding machine, comprising a mounting base. A driving box is fixedly mounted on the upper end face of the mounting base; a rotating disc is rotatably mounted on the front end face of the driving box; a motor is arranged in the driving box; the rotating disc is connected with the output end of the motor; a main frame is fixedly mounted on the rotating disc; and a plurality of wiring rods which are distributed in a surrounding manner are movably arranged on the main frame. According to the precise numerical control intelligent winding machine, by arranging an adjusting screw rod, a wire arranging assembly, a wire pushing frame and the like, manual auxiliary wire alignment fixing is not needed, subsequent winding is facilitated, the wire arranging function is achieved, the winding effect is improved, and the problems that when an existing winding machine is usually used, one end of a wire needs to be wound on a winding part for several circles with manual assistance and is used for fixing one end of the wire, loosening is avoided, follow-up winding is facilitated, meanwhile, the wire arranging function is lacked, and winding distribution is disordered are solved.

The invention discloses a radiology department image diagnosis film reading device, and relates to the technical field of radiology department image diagnosis, the radiology department image diagnosis film reading device comprises a rotary support assembly, a stretching assembly and a film reading display assembly, an outer frame plate is installed above the rotary support assembly, a fixing plate is fixed in the middle of the outer frame plate, the stretching assembly is installed on the inner side of the outer frame plate, and the fixing plate is fixed on the outer frame plate. And the stretching assembly comprises a connecting plate, a connecting plate, a cross arm, a movable shaft, a sliding block and a sliding groove, and the connecting plate is fixed to one side of the connecting plate. According to the radiology department image diagnosis film reading device, digital images of radiology department image diagnosis can be read through the first film reading display screen, the second film reading display screen and the third film reading display screen, and the first film reading display screen, the second film reading display screen and the third film reading display screen are adjustable; and an entity image film for radiology department image diagnosis can be read through the browsing assembly and the film reading display assembly, and automatic browsing and counting can be carried out during film reading.

The invention discloses crane traveling wheel machining equipment and machining technology. The crane traveling wheel machining equipment comprises a base, a fixing plate and an electric telescopic rod, a mounting frame is fixed on the base through welding, a motor is fixed to the mounting frame through bolts, a rotating screw is fixed to the tail end of an output shaft of the motor, meanwhile, the rotating screw and a fastening nut are mutually connected, the electric telescopic rod is fixed to the mounting frame, the electric telescopic rod is connected with a clamping plate through a columnar shaft, the clamping plate is connected with the electric telescopic rod through a torsion spring, and meanwhile the clamping plate and a grinding plate are mutually connected. According to the crane traveling wheel machining equipment, an adjustable inner supporting mechanism is adopted for fixing and supporting a traveling wheel body, a fixing mechanism can conduct supporting and limiting according to the inner diameter of a traveling wheel, therefore, the fixing and supporting effect on the traveling wheels of different sizes is achieved, the crane traveling wheel is clamped in the equipment to be ground, and the surface grinding precision of the traveling wheel can be improved.

The invention discloses a radial limiting separation adjusting type cable structure which comprises a radial adjusting mechanism. In order to flexibly adjust the radial abutting position of a lower rotating abutting rod, a radial adjusting mechanism is additionally arranged, a built-in block is slidably clamped to a radial clamping groove in the upper end of a positioning inner threaded ring through radial clamping teeth at the lower end, a threaded column is driven to rotate through rotation of a driving rod, and then the built-in block body is driven to radially slide at the upper end of the positioning internal thread ring. In this way, flexible adjustment can be carried out according to the diameters of different floating external thread rings, and meanwhile, the built-in block is moved outwards, so that the floating external thread rings can be conveniently detached in the later period.

The invention relates to a dispensing disc achieving environment-friendly glue discharging. The dispensing disc comprises an annular glue needle and a glue barrel. The glue barrel is arranged in the middle of the dispensing disc, glue is supplied to the glue needle through an annular glue channel under external pressure, and the glue is extruded out from the bottom end of the glue needle. The vertical section of the glue channel is a flatly-laid S-shaped bent channel. The dispensing disc can achieve annular linear glue discharging, for an annular workpiece, the dispensing speed is greatly increased, meanwhile, by means of the design, the situation of glue dripping can be reduced or avoided, and actual production requirements are met.

The invention belongs to the technical field of stranding machines. The invention especially relates to a high-speed stranding machine for producing cables. The machine comprises a connecting drum, and one side of the connecting drum is fixedly connected with a side connecting plate; a rotating shaft is fixedly connected to one side, away from the connecting drum, of the side connecting plate; thesurface of the rotating shaft is sleeved with a lantern ring, a transmission ball is arranged on the inner wall of the lantern ring, connecting rods are fixedly connected to the two sides of the lantern ring, cleaning brushes are fixedly connected to the ends, away from the lantern ring, of the connecting rods, a fixed side plate is fixedly connected to the inner wall of the side connecting plate, a chute is formed in the fixed side plate, and a sliding block is slidably connected to the inner wall of the chute. By arranging the sliding block, when the size of the coil needs to be adjusted, the sliding block can slide in the fixed side plate, when the sliding block slides, the coil sleeve rod is driven to move, after adjustment, the fixing screw is inserted into the through holes of the fixed side plate and the sliding block to be fixed, and therefore the effect of adjusting the diameter of the coil is achieved.

The invention relates to a heat conducting fiber (1). The heat conducting fiber (1) is characterized by comprising a mixture manufactured by heat conducting particles (2) and plastic particles (3), wherein the heat conducting particles (2) are made from a substrate material doped with a micron-scale or nano-scale heat conducting material. The heat conducting fiber is simple in manufacture and good in flexibility, and good heat conducting performance and high reliability can be achieved under the condition that multiple heat conducting fibers are integrated to form a heat conducting fiber beam for use. In addition, the invention further relates to a manufacture method of the heat conducting fiber and an illuminating device provided with the heat conducting fiber.

The invention provides a heat storage type flat flame burner. The heat storage type flat flame burner comprises an L-shaped burner body, wherein a smoke or air passage is arranged in the burner body. A heat storage body is arranged in the passage, and a fuel channel and a burner brick which is of a horn mouth shape are arranged on the burner body, wherein the burner brick is connected with the outlet end of the fuel channel. A swirler is arranged in the smoke or air passage, located in the outlet end of the passage, and is detachably connected with the smoke or air passage. The heat storage type flat flame burner has the advantages that a heat storage type burning technology and a flat flame burning technology are combined, uniformity of the furnace temperature is good, energy is saved, consumption is reduced, the discharge amount of NOX can be greatly reduced, and environmental protection is benefited; components inside the burner are made of fireproof materials, so that the burner is not prone to being burnt, and the service life of the burner is prolonged; rotational flow is formed by the swirler, flames can be spread out along a plane of a furnace wall, flat flame burning is achieved, so that the flames can not be sprayed at workpieces in a hearth, and the defects that the flames are directly sprayed to the workpieces to cause local high temperature and overburning, and performance indexes of workpieces are reduced are overcome.