164 results about "Beam tube" patented technology

The invention relates to a method for continuously producing 1, 1, 1, 3-tetrachloropropane, which comprises the following steps: adopting a loop reactor in which a beam pipe is arranged in the reactor, mixing reaction raw materials ethylene and carbon tetrachloride at a Venturi nozzle at the lower part of the reactor through a gas circulation loop and a liquid circulation loop outside the reactor, and spraying into the reactor filled with a main catalyst. A cocatalyst and a chelating agent are added into a carbon tetrachloride raw material in advance, are pumped into a liquid loop by a feeding pump and then enter a reactor. Reaction raw materials are circularly stirred under the action of a beam pipe in the reactor, so that solid, liquid and gas phases are fully mixed. By adopting the method disclosed by the invention, the selectivity and the production efficiency of the 1, 1, 1, 3-tetrachloropropane can be greatly improved, and the method also has the advantages of simplicity in operation, environment friendliness, long service life of the catalyst and low cost.

An ion implantation system including an ion source for generating an ion beam, an end station for holding a substrate to be implanted by the ion beam, and a linear accelerator disposed between the ion source and the end station and adapted to accelerate the ion beam, the linear accelerator including a beam tube for transmitting the ion beam, the beam tube having at least five adjoining sidewalls, at least one resonator coupled to the beam tube, and at least one turbomolecular pump coupled to the beam tube, wherein at least one of the at least five adjoining sidewalls of the beam tube has an opening formed therein for providing access to an interior of the beam tube.

The invention provides an underwater running double-stator beam flow rim propeller structure which comprises a guide pipe, the interior of one end of the guide pipe is connected with a front propeller hub, a front propeller hub cap is installed at one end of a propeller shaft, a front deflection stator, a rim transmission device and a rear deflection stator are sequentially installed on the propeller shaft, and the front deflection stator is connected with the front deflection stator. The other end of the conduit is connected with the tail beam tube; the wheel flange transmission device comprises a wheel flange transmission ring, the wheel flange transmission ring is connected with a paddle, and the paddle is installed on the rotor inner shaft. The guide pipe is used as a connecting carrier of the stator, the rim and the beam tube, and the rim transmission device is used as a power source device of the propeller. The front torsion stator plays a role in enabling inflow of the rotor to generate prerotation, the rear torsion stator plays a role in adjusting the torsion angle of the blades according to the fluid speed so as to better absorb wake flow energy, and the beam barrel is used for restraining the wake flow and concentrating pressure at the tail of the propeller on beams in the same direction, so that the effect of improving the propelling efficiency is achieved.

The invention discloses a full-laser multi-path gas fire early warning and monitoring system and a fire early warning method, the fire early warning and monitoring system comprises a ground monitoring part and an underground monitoring part, and the ground monitoring part comprises a ground monitoring server host; the underground monitoring part comprises a gas monitoring module, a network switch, a sucking pump, a beam tube switching valve group and a plurality of sampling beam tubes, the gas inlet end of the sucking pump is communicated with an exhaust pipe of the beam tube switching valve group, and the exhaust end of the sucking pump is communicated with the gas monitoring module; the beam tube switching valve group comprises a plurality of switching valves in one-to-one correspondence with the sampling beam tubes, the air inlet end of each switching valve is communicated with the corresponding sampling beam tube, and the exhaust end of each switching valve is communicated with an exhaust pipe; a gas reversing valve is arranged on the exhaust pipe, a pressure sensor and a compressed gas source control valve communicated with the gas reversing valve are arranged on the gas reversing valve, and the compressed gas source control valve is communicated with a compressed gas tank.

An ion implantation system including an ion source for generating an ion beam, an end station for holding a substrate to be implanted by the ion beam, and a linear accelerator disposed between the ion source and the end station and adapted to accelerate the ion beam, the linear accelerator including a beam tube for transmitting the ion beam, the beam tube having at least five adjoining sidewalls, at least one resonator coupled to the beam tube, and at least one turbomolecular pump coupled to the beam tube, wherein at least one of the at least five adjoining sidewalls of the beam tube has an opening formed therein for providing access to an interior of the beam tube.

The invention discloses a multi-beam laser cutting device integrated with a cooling injection system, the multi-beam laser cutting device comprises a processing table and a cutting mechanism, the cutting mechanism comprises an equipment box, a beam tube is arranged outside the equipment box, the beam tube is sleeved with a fixing sleeve, the outer surface of the fixing sleeve is fixedly connected with the outer surface of the equipment box, and the outer surface of the fixing sleeve is fixedly connected with the outer surface of the equipment box. The laser cutting device comprises a fixing sleeve, a fixing ring is fixedly connected to the interior of the fixing sleeve, the interior of the fixing ring is hollow, a water inlet pipe is communicated with the interior of the fixing ring in a penetrating mode, and a water spraying pipe is communicated with the interior of the fixing ring in a penetrating mode. The problems that local hardness is increased and toughness is reduced due to the fact that metal grains are prone to coarse oxidation and the like in a heat affected zone, meanwhile, material micro-deformation is caused by thermal expansion and shrinkage, slag and an oxide layer are prone to being attached, additional working procedures are needed for cleaning, and machining precision and machining efficiency become poor are solved.

The invention provides a particle accelerator beam pipeline support member design method and a support system, and relates to the technical field of particle accelerators, and the particle accelerator beam pipeline support member design method comprises the following steps: classifying devices on a beam transport line into interference source devices and sensitive devices based on the electromagnetic characteristics of the devices and the structural relationship between the devices and a beam pipeline; supporting pieces are independently configured for a beam pipeline and various devices, and specific electrical isolation, grounding and filtering measures are adopted for different device types: an interference source device is connected with an electrostatic protection ground and is added with a filter; sensitive equipment and a beam pipeline are electrically isolated and are connected with a signal ground. Through systematic supporting and grounding architecture design, a coupling path of electromagnetic interference is fundamentally cut off, electromagnetic noise on a beam pipeline is remarkably reduced, a clean reference ground is provided for beam diagnosis and other weak signal systems, and high-reliability and high-precision operation of an accelerator is guaranteed.

The invention relates to an adjustable bracket for mounting automobile wire harnesses, which is applied to the field of brackets, the bracket is provided with a plurality of pairs of lower beam tubes and upper beam tubes to separate and fix the wire harnesses, so that the wire harnesses are effectively prevented from being damaged due to mutual friction, and the wire harnesses or wire harness joints are fixed by utilizing the wrapping property of a wire covering film; the wire covering film can be adaptively adjusted, so that wire harnesses and wire harness connectors of different specifications are fixed, the adaptability is higher, heat of the wire harnesses and the wire harness connectors is absorbed by arranging heat absorption structures in the lower beam tube and the upper beam tube, the heat is transmitted into the fixing support for heat dissipation, and the heat absorption effect is better. The wire harnesses and the wire harness joints are effectively prevented from melting in a high-temperature environment to affect the safety of an automobile, and self-adaptive heat dissipation adjustment can be carried out according to the temperature of each group of wire harnesses or each wire harness joint, so that the heat dissipation effect is effectively improved.

The steering axle frame of the low-speed unmanned logistics vehicle comprises a front beam pipe, a steering frame, a connecting sleeve and the like, the connecting pipe is provided with a connecting section and a limiting section, the connecting section is inserted into the front beam pipe, and the limiting section abuts against the end of the front beam pipe; one end of the connecting joint is arranged on the connecting sleeve, and the other end is movably inserted into a steering groove of the bogie; the connecting rotating shaft is arranged on the connecting joint and is rotationally connected with the bogie; the positioning lock pin is arranged on the connecting joint and is inserted into the locking groove of the connecting rotating shaft so as to lock the connecting rotating shaft and the connecting joint; and the gasket is arranged between the connecting joint and the bogie so as to lock the axial position of the connecting joint. According to the steering axle frame, the connecting strength between the connecting joint and the front beam pipe is improved by additionally arranging the connecting sleeve, so that the connecting joint and the front beam pipe are not prone to breakage; axial positioning of the connecting rotating shaft is achieved through the positioning lock pin and the gasket, axial movement is avoided, and noise generated by axial movement is eliminated.

The utility model relates to an indoor composite optical cable based on a micro-beam tube structure, which comprises an outer sheath, an inner sheath, a central reinforcing member, a plurality of micro-beam tube units distributed along the circumferential direction, a waterproof layer and a filling structure, the outer sheath wraps the outermost layer of the optical cable, and the inner side of the outer sheath is provided with a spirally wound nonmetal tensile belt. The inner sheath is coaxially nested in the outer sheath, an annular gap is formed between the inner sheath and the outer sheath, two non-metal reinforcing members are symmetrically embedded in the annular gap and are located at the axis position of the optical cable, and the micro beam tube unit comprises a plurality of optical fibers and a microporous polyester belt wrapping the optical fibers. The micro beam tube units are spirally twisted and arranged by taking the central reinforcing piece as a circle center, the central reinforcing piece is located at the axis position of the optical cable and provides stable support for the whole optical cable, and the micro beam tube units are spirally twisted and arranged by taking the central reinforcing piece as the circle center, so that the optical cable is endowed with good flexibility and bending resistance.

The goaf monitoring system comprises a detection pipeline, the detection pipeline comprises a protection net sleeve, a first beam tube, a second beam tube and a third beam tube, the protection net sleeve is arranged on the side wall of an air return roadway, a protection channel is formed in the protection net sleeve, and the first beam tube, the second beam tube and the third beam tube are arranged in the protection channel respectively; the first end of the first beam tube is located in a suffocation zone of the goaf, the first end of the second beam tube is located in an oxidation heating zone of the goaf, and the first end of the third beam tube is located in a heat dissipation zone of the goaf. According to the goaf monitoring system disclosed by the invention, stable protection can be realized by utilizing the protective net sleeve, so that the first beam tube, the second beam tube and the third beam tube are prevented from being damaged or even damaged due to collapse of the goaf, meanwhile, the gas monitoring cost of the goaf is effectively reduced, and the gas monitoring efficiency of the goaf is improved.

The utility model relates to the technical field of optical cable auxiliary alignment equipment, in particular to center beam tube optical cable core alignment equipment which comprises a bottom plate, a supporting plate fixedly installed on the upper surface of the bottom plate, an arc-shaped sleeve fixedly installed on the upper surface of the supporting plate, and a supporting frame fixedly installed on the arc-shaped sleeve. A first electric push rod is fixedly installed on a top plate body of the supporting frame, a lower pressing disc is fixedly installed at the tail end of a telescopic shaft of the first electric push rod, an adjusting assembly is further arranged on the bottom plate and comprises a second electric push rod fixedly installed on the bottom plate, and a guide rail is fixedly installed at the tail end of a telescopic shaft of the second electric push rod. A servo motor is fixedly installed at the end of the guide rail, a forward lead screw is fixedly installed at the tail end of an output shaft of the servo motor, a reverse lead screw is fixedly installed at the tail end of the forward lead screw, sliding blocks are connected to the forward lead screw and the reverse lead screw in a threaded mode, and clamping blocks are fixedly installed at the top ends of the sliding blocks. The device facilitates alignment operation and is convenient to use.

The utility model relates to a bicycle frame welding production line. Comprising a first welding station, a second welding station, a third welding station and a correcting station which are sequentially arranged, wherein the first welding station is used for completing welding of a front beam pipe assembly; the second welding station is used for completing welding of a whole frame and a front welding bead of the frame; the third welding station is used for completing welding of a back welding bead of the frame; the first welding station, the second welding station, the third welding station and the correcting station are sequentially arranged, welding of the whole bicycle frame can be completed only through four procedures, namely, the three welding procedures and the one correcting procedure, the machining procedures can be simplified, the length of a production line can be reduced, then the production cost is reduced, and the production efficiency is improved.

The utility model discloses a pipeline vibration reduction structure for heat exchange equipment and the heat exchange equipment, and relates to the technical field of heat exchange equipment, the pipeline vibration reduction structure for the heat exchange equipment comprises a vibration reduction disc and a limiting belt, the vibration reduction disc is provided with at least two beam tube grooves, and the periphery of the vibration reduction disc is provided with a clamping groove; the limiting belt is connected to the vibration reduction disc, clamped in the clamping groove and used for blocking a groove opening of the beam tube groove. According to the technical scheme, the at least two beam tube grooves are formed in the vibration reduction disc of the pipeline vibration reduction structure for the heat exchange equipment, the heat exchange equipment inner pipeline with the high amplitude and the heat exchange equipment inner pipeline with the low amplitude are limited in the at least two beam tube grooves together, and the notches of the beam tube grooves are blocked through the limiting belts. The pipeline in the heat exchange equipment can be stably fixed and is not prone to loosening or displacement, the mode is easy and convenient to install, the cost is low when the pipeline is applied to the heat exchange equipment, and the time consumed for installation is short.

The invention relates to the technical field of superconducting accelerators, in particular to a solid conduction cooling structure for a superconducting radio frequency cavity. Comprising a double-cell superconducting cavity body, an equator cold ring, a beam tube cold ring and a thermal bridge structure, and through the ingenious design of the equator cold ring, the beam tube cold ring and the thermal bridge structure and the adoption of oxygen-free copper and other materials with good heat conduction performance and mechanical strength, the efficient and uniform cooling effect is achieved, and the service life of the double-cell superconducting cavity is prolonged. Powerful support is provided for miniaturization and industrial application of the radio frequency superconducting technology; according to the invention, stable operation of the superconducting cavity at a proper low temperature can be realized by adopting a commercial refrigerator, a complex thermostat design, an expensive and huge helium liquefaction low-temperature station and a specialized low-temperature station operation and maintenance team are omitted, and the application difficulty of a radio frequency superconducting technology is reduced; the method has natural advantages in miniaturization and industrial application of the radio frequency superconducting technology.

The conveying and feeding device for soft yolk egg processing and production comprises a vacuum air pump, a hose and an egg sucker, the hose is borne on a beam tube barrel, the bottom of the beam tube barrel is fixedly connected with a supporting column, the bottom of the supporting column is fixedly connected with a carrying base, a plurality of bag grooves are formed in the upper surface of the carrying base, and a tube groove is formed between every two adjacent bag grooves; liquid bags are arranged in the bag grooves, liquid pipes are arranged in the pipe grooves, the adjacent liquid bags are communicated through the liquid pipes, trays are bonded to the upper surfaces of the liquid bags, a plurality of guide grooves are formed in the inner wall of the outer side of the pipe bundling barrel, a pipe containing plate is slidably connected into the guide grooves, and a pipe penetrating plate with a penetrating opening is fixedly connected to the bottom of the pipe containing plate. And the surface and the side face of the pipe containing plate are each connected with a plurality of pipe grabbing pieces in a magnetic attraction mode, by means of the structure, the hoses stacked on the ground are sequentially limited, the bent positions are prevented from being broken, the hose butt joint precision and the connection sealing performance are greatly improved, and the high adsorption egg taking efficiency and effect are guaranteed.

The application discloses a kind of based on heat trigger solid-liquid reaction's goaf spontaneous combustion initiative inerting device and method, belong to coal mine fire prevention technical field, first based on experimental data, goaf beam tube monitoring and numerical simulation determine goaf high temperature prevention area, under the influence of setting safety margin and considering the maximum thickness of residual coal determine the starting temperature of adaptive inerting device, then according to goaf residual coal thickness, porosity, oxygen concentration field and high temperature prevention area area calculate out initiative inerting device size and reagent filling amount, finally combine the effective coverage area of single device and honeycomb grid generation algorithm, design initiative inerting device dynamic pre-buried point, and pre-bury initiative inerting device in coal mining face, when device reaches the high temperature protection area of goaf deep, temperature sensing guide column paraffin melt, aluminum sulfate solution in liquid reagent storage tank flows into solid reaction bin and sodium bicarbonate reaction along guide column, generate a large amount of CO2 from exhaust port, rapidly reduce local oxygen concentration, eliminate goaf spontaneous combustion hazard.The core innovation of the application is to abandon the traditional passive prevention mode relying on gas diffusion, and instead adopt the initiative control mechanism of "temperature sensing trigger-in-situ reaction-directional release", so that CO2 directly acts on the high temperature area through the directional exhaust port, rapidly reduces the local oxygen concentration, cuts off the necessary condition of coal spontaneous combustion from the source, realizes the initiative identification and accurate inerting of goaf high temperature area, and ensures the safety production of coal mining face.

The utility model discloses a mine return air corner gas monitoring device which comprises a main machine body, the main machine body is connected with a beam tube, one end, deviating from the main machine body, of the beam tube is provided with a gas inlet tube, the beam tube is provided with a separation assembly, and the separation assembly comprises a box body, a gas conveying cylinder, a vertical rod and a plurality of groups of mutually parallel inclined blades. The gas conveying cylinder is fixedly arranged in the box body, an opening is formed in the upper end of the gas conveying cylinder, the vertical rod is located in the gas conveying cylinder and rotationally connected with the box body, each set of inclined blades are fixedly connected with the vertical rod, the gas inlet pipe sequentially penetrates through the box body and the gas conveying cylinder, the gas inlet pipe corresponds to the inclined blade at the lowest end, and the upper end of the box body is communicated with the beam pipe. One-way valves are arranged at the joints of the beam tube, the air inlet tube and the box body. The air return corner monitoring device has the effects of smoothly collecting air at the air return corner and guaranteeing normal monitoring of the air.

The utility model discloses a cutting head closed light path telescopic air pressure balancing device which comprises an upper light beam barrel, a bidirectional vacuum filter is installed on the outer side of the upper light beam barrel, an upper protective mirror is installed on the top of the upper light beam barrel, a collimating mirror is arranged at the bottom of the upper protective mirror, and a middle light beam barrel is fixedly arranged at the bottom of the upper light beam barrel. A lower light beam barrel is fixedly installed at the end of the middle light beam barrel, a lead screw integrated motor is arranged on the outer side of the lower light beam barrel, a protection lens base is arranged on one side of the lead screw integrated motor, and a focus lens and a lower protection lens are installed in the protection lens base. According to the cutting head closed light path telescopic air pressure balancing device, the protective lens base is made to move up and down through the lead screw integrated motor, a sealing ring is installed on a focusing lens barrel on the upper portion of the protective lens base, and the light path sealing performance is guaranteed; the up-and-down moving resistance of the front end is reduced through the bidirectional vacuum filter, and the responsivity of the follow-up shaft is improved; and the cutting nozzle is prevented from colliding with the plate.

The utility model provides a production cutting device for a central beam tube type OPGW optical cable, and belongs to the technical field of optical cable processing. Comprising a bottom plate, a discharging opening formed in the side wall of the bottom plate, a material guiding plate fixedly installed on the inner wall of the discharging opening, a vertical plate fixedly connected to the side wall of the bottom plate, a limiting hole formed in the surface of the bottom plate, a motor frame fixedly installed on the side wall of the vertical plate and a material receiving assembly arranged at the bottom of the bottom plate. Through cooperative use of the driving assembly and the auxiliary assembly, the optical cable cutting and stripping integrated operation is realized, the processing efficiency is greatly improved, the driving assembly adopts a high-precision servo motor to be matched with a rotating disc, the rotating speed of a cutting head can be accurately controlled according to actual processing requirements, the accuracy of the cutting length is ensured, and the production efficiency is improved. The auxiliary assembly can automatically adapt to optical cables with different diameters through spring buffering and arrangement of a movable wire seat, stable clamping force is provided in the cutting process, and the optical cables are prevented from slipping or deviating.

The invention discloses an indoor micro-beam tube type optical cable, which comprises a micro-beam tube, aramid yarn, a tearing rope and an outer sheath, and is characterized in that the outer sheath is arranged outside the micro-beam tube and the tearing rope, and the outer sheath is made of a low-smoke halogen-free material with an oxygen index greater than or equal to 40%; the micro beam tube comprises an optical fiber, a filling layer and an inner sheath, the inner sheath is arranged on the outer side of the optical fiber, and the filling layer is filled between the optical fiber and the inner sheath. The invention provides a dynamic adaptation strategy of a filling layer material and an inner layer sheath material, the provided indoor micro beam tube type optical cable can guarantee the structural integrity of the sheath, gives consideration to protection performance and construction operability, solves the contradiction that the inner layer sheath of a traditional optical cable is insufficient in protection or too hard to operate, can block moisture intrusion in a humid environment, and also can prevent the inner layer sheath from being damaged. And external force impact can be buffered through the filling layer, so that stable operation of the optical cable under extreme weather conditions such as high temperature and cold and complex scenes such as industrial oil contamination and high humidity can be ensured.

The invention provides a clinical anesthesia support structure convenient to operate, and relates to the technical field of medical instruments. The adjusting part is arranged below the beam tube part; the supporting part is arranged below the adjusting part; the blocking part is arranged above the supporting part; a cylindrical groove is formed in the top of an adjusting plate, connection of a connecting block is facilitated, then stability of a matched restraining block is kept conveniently, a fixing frame is fixed to the adjusting plate, a telescopic frame and an outer clamping frame are fixed conveniently, the telescopic frame and the outer clamping frame stretch out and draw back and turn over while stability is kept, and then the supporting range of the telescopic frame and the outer clamping frame is increased; according to the anesthesia support structure, a plurality of supporting devices are arranged, so that supporting treatment can be conveniently carried out in multiple directions in the operation process, and the problems that for an existing traditional anesthesia support structure, supporting treatment is generally achieved through stretching and retracting of a tubular structure, but due to the fact that the number of tools needed to be laid in the clinical operation process is large, supporting in different directions is inconvenient to carry out are solved.

The invention discloses a method and a system for measuring the diffusion radius of nitrogen injected in a goaf, and belongs to the technical field of safe mining of coal mines. Comprising the steps that beam tube monitoring points are arranged on the air inlet side and the air return side of a goaf, the oxygen concentration of each monitoring point is monitored in real time, and the advancing distance and nitrogen injection process parameters of a working face are synchronously recorded; the nitrogen injection process parameters comprise the nitrogen injection flow and the embedding position of a nitrogen injection port; extracting oxygen concentration data under a non-nitrogen injection condition, establishing a function relationship of the oxygen concentration along with the change of the advancing distance of the working face through linear fitting, and calculating a corresponding heat dissipation band termination position when the oxygen concentration is reduced to a first preset threshold value based on the function relationship; acquiring oxygen concentration data of the goaf under the specific nitrogen injection flow, and determining a corresponding post-nitrogen-injection heat dissipation zone termination position and a corresponding post-nitrogen-injection oxidation zone termination position when the oxygen concentration is reduced to a first preset threshold value; and calculating the difference value between the termination position of the heat dissipation belt and the termination position of the heat dissipation belt after nitrogen injection to obtain the nitrogen diffusion radius under the nitrogen injection flow.

The utility model discloses an underground coal mine beam tube gas production waterproof device, which relates to the technical field of beam tube detection and comprises a three-way tube, an inclined tube of the three-way tube is provided with a mounting plate and a top sealing plate, a through air hole is formed in the side wall of the inclined tube between the top sealing plate and the mounting plate, a beam tube is inserted into the three-way tube, and the top end of the beam tube is higher than the air hole. And a water leakage hole is formed in the three-way pipe below the air hole in a penetrating manner. The device is installed in a goaf, gas is taken through the vent holes, when accumulated water is too much and enters the three-way pipe from the vent holes, the accumulated water enters the three-way pipe below the installation plate from the first water leakage hole and then leaks out of the three-way pipe from the second water leakage hole, and it is prevented that the gas taking is affected by continuous accumulated water in the three-way pipe.

The application discloses a kind of beam halo detection device and method for relativistic particle beam, including vacuum chamber, which is internally arranged fluorescent screen and transition radiation screen, and central aperture is arranged on the fluorescent screen;When beam core is measured, transition radiation screen is located on beam tube, and beam current and transition radiation screen interact to generate transition radiation;When beam halo is measured, fluorescent screen is located in beam tube, and beam current bombards fluorescent screen to generate fluorescence.Optical imaging module includes diaphragm, optical lens group, band-pass filter, neutral attenuation sheet and image sensor arranged in sequence;Image sensor is used to collect transition radiation light and generate first beam core distribution image, and also used to collect the fluorescence signal corresponding to each moving position of fluorescent screen and generate second beam core distribution image and beam current image.Control analysis module includes motorized stage, stage controller and data server.The device uses transition radiation screen and light-emitting screen combination method, and the beam core and beam halo of micron-level size relativistic particle beam can be accurately measured.

The utility model relates to the technical field of industrial doors, in particular to a built-in driving type industrial door motor installation device which comprises a corner side plate, a tubular motor and a beam tube, the tubular motor is fixed on the corner side plate through bolts, and the beam tube is of a polygonal hollow tube body structure. The tubular motor extends into the beam pipe, and a polygonal sleeve matched with the inner diameter of the beam pipe is arranged at the driving end of the tubular motor, according to the built-in driving type industrial door motor mounting device, through accurate matching of the polygonal sleeve and the positioning piece, high-stability connection between the motor and the beam pipe is ensured, loosening and displacement in long-term use are effectively prevented, and the service life of the motor is prolonged. Compared with the prior art, operation safety and reliability are remarkably improved, by means of the unique design, the installation process is remarkably simplified, tedious alignment and adjustment steps are omitted, the installation time and cost are reduced, in addition, by optimizing a fixing structure and a beam pipe driving mode, bolt loss is effectively reduced, and the service life is prolonged.

The utility model discloses a cleaning device for central beam tube type OPGW optical cable production, which comprises a workbench, the workbench is supported by four supporting columns, the upper end of the workbench is fixedly connected with a frame body, the front end and the rear end of the frame body are both provided with circular through grooves, the two circular through grooves are both internally provided with supporting assemblies, and the supporting assemblies are fixedly connected with the workbench. The side walls of the left side and the right side of the interior of the frame body are each communicated with a water sprayer, two cleaning assemblies are arranged on the two sides of the two water sprayers, two supporting plates are fixedly connected to the inner bottom of the frame body, and the upper ends of the two cleaning assemblies are connected to the inner top of the frame body; the lower ends of the two cleaning assemblies are connected to the two supporting plates correspondingly, and a rectangular through groove communicating with the interior of the frame body is formed in the workbench. According to the utility model, self-adaptive clamping and efficient cleaning of optical cables with different diameters are realized, and the optical cable processing efficiency and the environmental protection property are improved in cooperation with air drying and waste water recovery functions.

The application provides a kind of laser pumped cesium atomic beam clock parameter adaptive setting device and method, relating to atomic clock technical field, including cesium beam tube unit;Cesium beam tube drive unit;Frequency stabilization laser light source unit;Acoustooptic frequency shift unit;Crystal oscillator lock frequency unit;Temperature acquisition and control unit;Wherein, main control unit is connected each controlled module by communication interface, and in-machine computer runs host computer software: calculate relative frequency deviation and allan variance, obtain frequency deviation sequence and allan variance data set;Determine the optimal working parameter combination corresponding to peak value;Linkage executes primary temperature control, secondary temperature control and tertiary temperature control, realizes temperature gradient compression and wavelength stability control;Compare real-time monitoring parameters with preset threshold, determine alarm level, thereby trigger system response instruction.The beneficial effects of the application are to reduce labor cost, improve temperature adaptability and improve long-term stability index.

The invention relates to the technical field of LED street lamps, and discloses an LED street lamp power line connecting structure which comprises a base, a lamp pole is fixedly connected to the upper surface of the base, a first lower layer shell is fixedly connected to the outer wall of the upper side of the lamp pole, a mounting column is fixedly connected to the outer wall of the first lower layer shell, and a pulling and inserting assembly is arranged in a second lower layer shell and the first lower layer shell. The upper surface of the first lower-layer shell is rotationally connected with a first upper-layer shell, the upper surface of the second lower-layer shell is rotationally connected with a second upper-layer shell, the interior of the first lower-layer shell is fixedly connected with a beam tube plate, and a beam tube opening is formed in the beam tube plate. According to the LED street lamp, the electric wire body is installed in the lamp pole, then the electric wire body penetrates through the beam tube opening, and one end of the electric wire body 11 is connected with the plug, so that extra tools are not needed during power supply connection, installation personnel can directly align and insert the plug and the socket, rapid connection is achieved, the installation time of the LED street lamp is greatly shortened, and the installation efficiency is improved. And the project progress is accelerated.

The invention discloses a magneto-optical pumping cesium beam atomic clock, which comprises a laser, a half-wave plate, a polarization splitting prism, a reflector, a cesium furnace, a state selection magnet, a microwave cavity, a fluorescence collector, a fluorescence detector and a vacuum cesium beam tube, and is characterized in that the cesium furnace, the state selection magnet, the microwave cavity and the fluorescence collector are mounted in the vacuum cesium beam tube; the laser is used for emitting a laser beam, the laser beam is divided into two beams after passing through the half-wave plate and the polarization splitting prism, one beam of laser transmitted by the polarization splitting prism is used as pumping light, and the other beam of laser reflected by the polarization splitting prism is used as detection light; the detection light enters the cesium-beam tube and is received by a fluorescence collector in the cesium-beam tube; the pumping light is reflected by the reflector, then enters the cesium beam tube and acts with cesium atoms emitted by the cesium furnace.