47results about How to "With maintenance" patented technology

The invention relates to an intelligent air purification control system and method. No intelligent air purification control systems and methods with complete functions exist at present. The intelligent air purification control system comprises an air purification system, a fan system and a shell. The intelligent air purification control system is characterized by further comprising an air monitoring system, an android control system, a speed governor module, a loudspeaker, a display system, a network function module and a server. A TVOC sensor, an infrared sensor, an MIC sensor and an optical sensor are arranged in the air monitoring system. An APP extension module, a WIFI module and a data analysis module are arranged in the android control system, and the air monitoring system, the network function module, the display system, the loudspeaker, the server, the fan system and the speed governor module are connected with the android control system. The intelligent air purification control method is characterized by comprising an automatic mode, a sleep mode, a protection mode, a fierce wind mode and a manual mode. The intelligent air purification control system is reasonable in structure and complete in function.

The invention discloses a data processing method. The method comprises the steps of determining a mapping relation between a user field and a database field in the to-be-stored data according to a preset mapping rule when a data storage request including to-be-stored data is received, wherein the to-be-stored data are unstructured data; converting the to-be-stored data into index data according to the mapping relation, wherein the index data are reflected in the form of database field; and storing the index data in a database. According to the method, the mapping relation can be stored, when the data query request is received, conversion between the user field and the database field is carried out and the data query is realized. The embodiment of the invention also provides a corresponding data query method and data processing system. Therefore, a data solution scheme which is easy to use, expand and maintain is provided, the method is suitable for processing of the unstructured data, and thus the usage cost of a user is reduced and the user experience is improved.

The invention mainly relates to an electronic device used for intelligently controlling and monitoring a track traffic interlocking control point switch, in particular to a system for controlling and monitoring the position of railway points. The invention is characterized in that the electronic device comprises a control mechanism (1), an electrical signal between an execution mechanism (2) and a point switch (5), and a monitoring mechanism (3) for the self-detection of the device; the control mechanism (1) and the monitoring mechanism (3) are connected with an external computer by a communication fieldbus; the execution mechanism (2) is connected with the control mechanism (1) and the point switch (5); the monitoring mechanism (3) is connected with the execution mechanism (2) and the control mechanism (1); the monitoring mechanism (3) is connected with the external computer by a data communication fieldbus. In the invention, the electronic device is adopted for replacing the existing relay contact circuit; an interlocking control device for railway signal is realized by the integration of controlling, monitoring and supervising, therefore, the invention has the advantages of self-detection function, fault position, and stable and reliable work.

The invention relates to a monitoring camera with the cleaning function and convenient to maintain. The monitoring camera comprises struts, a body and a protective cover. The monitoring camera furthercomprises an overhauling mechanism and a cleaning mechanism. The overhauling mechanism comprises a first driving assembly, a top plate, a lifting sleeve, a driving shaft, two supporting rods, two first bearings and two transmission assemblies. The cleaning mechanism comprises a second driving assembly, a water collecting tank, a water conveying pipe, a water pump, a rotating pipe, a cleaning strip, two fixing shafts, two second bearings and at least two nozzles. The first driving assembly comprises a first motor, a worm and a first gear; the transmission assembly comprises a wire spool and asteel wire rope. According to the monitoring camera with the cleaning function and convenient to maintain, the lifting of the main body is achieved through the overhauling mechanism. The overhauling convenience of the camera is improved. The cleanliness of the protective cover is improved through the cleaning mechanism, and the shooting definition of the camera is improved.

The invention is leather maintenance water, which is prepared by mixing the following components according to a certain weight ratio: methylparaben, mink oil, triethanolamine, oleic acid, liquid paraffin, dielectric oil, essence and distilled water. The maintenance water can be suitable for maintenance and care of any leather products including sheepskin products, cow leather products and leatherware, etc. The application method of the leather maintenance water is simple and practicable. The maintenance water can be directly sprayed on cotton rag; then, the cotton rag is used to gently wipe a leather surface which needs maintenance for many times until the maintenance water is completely absorbed by the leather product. The maintenance water has multiple effects of decontamination, brightening, maintenance, repairing and the like, can be putted into a bottle, is easy to carry, is colorless and tasteless, contains no harmful substances, and is an ideal leather maintenance product.

The invention provides a built-in transformer of a wind power tower barrel, comprising a low-voltage winding, a high-voltage winding and an iron core. The structural key points are as follows: the iron core is provided with an upper iron yoke and a lower iron yoke; a side column is respectively arranged between the left end and the right end of the upper iron yoke and the lower iron yoke; the upper and lower ends of the side column are respectively connected with the left end and the right end of the iron yoke in an overlapping manner; the middle part of the iron yoke is provided with a middle column; the upper end and the lower end of the middle column are respectively connected with the middle part of the iron yoke in an overlapping manner; the side column and the middle column are respectively provided with the winding; the inner layer of the winding is provided with low-voltage coil; the outer layer of the low-voltage coil is sheathed with a high-voltage coil; clamping units are respectively arranged at the front and rear sides of the iron yoke; the low-voltage coil is wound with a copper foil; the materials pre-impregnated by DMD resin is used as the insulation between layers; a flexible grid cloth is arranged between two adjacent layers of the high-voltage winding; and the periphery of the high-voltage is provided with the solventless grid materials. The invention is characterized by compact structure, long service life, low noise, free maintenance, high reliability, no pollution, flame retardancy and the like, the probability of partial discharge is approximately zero, and the invention can be recycled after the service life is ended up.

The invention relates to an ultrasonic-wave chest nursing device and relates to the technical field f medical and health care devices. The nursing device comprises a main controller and an ultrasonic-wave chest paster. The main controller comprises an outer housing, a controller, an ultrasonic wave generator and a control keyboard. The controller and the ultrasonic wave generator are installed in the outer housing. The control keyboard is arranged on the outer housing. The ultrasonic wave generator and the control keyboard are connected with the controller. The nursing device is characterized in that the chest paster is used for being pasted on base cloth of the chest and an ultrasonic wave energy converter; the ultrasonic wave energy converter is fixed on the base cloth; and the ultrasonic wave energy converter is connected with the ultrasonic wave generator through a signal line. The nursing device is simple in structure and convenient to use and has physical therapy and health care functions like chest caring and nursing, chest enlargement and disease prevention.

The invention discloses a mildew-proof antibacterial cleansing paste, which includes the following raw materials by weight: 1-4 parts of an mildew-proof antibacterial; 8-16 parts of an emulsifier; 15-30 parts of a wax material; 8-12 parts of silicone oil; 5-10 parts of glycerin; 3-8 parts of lanolin; 1-6 parts of leather nursing protein; and 20-60 parts of a solvent. The invention also discloses a preparation method and application of the mildew-proof antibacterial cleansing paste. The mildew-proof antibacterial cleansing paste prepared by the method provided by the invention has the advantages of milk white color, proper hardness, fineness and uniformity, good stability, fragrant smell, reasonable component collocation, easy preparation, safety and no toxicity, and significant mildew-proof effect. The mildew-proof antibacterial cleansing paste provided by the invention is a multi-functional mildew-proof antibacterial cleansing paste, has the multiple functions of mildew and bacteria prevention, cleaning and decontamination, and leather nursing, etc., can make leather soft, elastic and soft in luster, also can help confrontation against leather aging and surface drying and cracking, can remove the mildews, mildew spot and the like from the surface of leather in a mouldy condition, and prevents leather mildewing for a long term.

The invention discloses a detachable anti-static and anti-corrosion bristle brush. The detachable anti-static and anti-corrosion bristle brush comprises a mounting frame, a mounting groove is arrangedin the mounting frame, a bristle brush plate is arranged in the mounting groove through clamping mechanisms, a plurality of brush bristle holes are formed in the bottom surface of the bristle brush plate, anti-static and anti-corrosion bristle brush bodies are mounted in the brush bristle holes in an embedding manner, rubber strip holes are formed in the bottom surface of the bristle brush plate,rubber strips are mounted in the rubber strip holes in an embedding manner, and the anti-static and anti-corrosion bristle brush bodies and the rubber strips are arranged at intervals; and the anti-static and anti-corrosion bristle brush bodies comprise bristle brush main bodies, an anti-static and anti-corrosion layer wraps the outer surface of each bristle brush main body, and each anti-staticand anti-corrosion layer is formed by spraying an anti-static and anti-corrosion coating. According to the detachable anti-static and anti-corrosion bristle brush, the convenience in replacing brush bristles is improved, the maintenance and replacement are convenient, meanwhile, the phenomenon that static electricity is easily caused by friction during cleaning is avoided, moreover, the anti-corrosion function is available, the service life of the bristle brush is prolonged, and the cleaning effect and cleaning efficiency are improved.

The invention discloses an application method of an automatic grinding machine used for grinding a small roller and provided with a patching sharpening grinding wheel. The automatic grinding machine comprises a lathe bed, a marble table board, a bottom plate, a graphite wheel sliding plate drive device, a graphite wheel drive device, a grinding wheel device, a sharpening copper ring device, a vertical sharpening sliding plate device, a vertical sharpening drive device, an electric spindle device, a guide wheel transverse feed device, a guide wheel drive device, a supporting wheel device, the small roller, a graphite wheel sharpening device and angle plates. According to the automatic grinding machine, the small roller is subjected to grinding machining, meanwhile, the grinding wheel can becorrected online, the sharpening grinding wheel can be electrolyzed online, and therefore the grinding forming precision of the small roller is improved, the grinding efficiency is greatly improved,and cost is low; and due to the fact that the grinding size consistency of the small roller is good, the quality is stable and reliable, and the advantages that adjustment, mounting, maintaining and use are convenient are achieved.

The invention relates to stemming for a blast furnace tap hole and a preparation method thereof. The technical scheme includes: taking 3-20wt% of titanium-iron slag particles, 5-10wt% of corundum particles and 10-18wt% of coke as aggregate, and adopting 2-15wt% of titanium-iron slag fine powder, 5-10wt% of corundum fine powder, 15-25wt% of silicon carbide, 10-18wt% of clay, 4-8wt% of sericite, 4-8wt% of kyanite and 6-14wt% of ferrosilicon nitride as the matrix; firstly adding a binding agent accounting for 4-5wt% of the sum of the aggregate and the matrix into the aggregate, performing stirring, then adding the matrix, and performing mixing to obtain a premix; and then adding the binding agent accounting for 8-11wt% of the sum of the aggregate and the matrix into the premix, further performing stirring, and then extruding the mixture into blocks by a mud extruder, thus obtaining the stemming for the blast furnace tap hole. The method provided by the invention is low in production cost,the prepared product has small volume density, good volume stability, good air permeability, high compressive strength and good erosion resistance, and can reach the effects of repairing and maintaining the blast furnace tap hole.

The invention discloses a wind power tower tube of a resin cladding frame and fiber reinforced concrete and a construction method. The wind power tower tube comprises an outer cladding and an inner cladding. The outer cladding and the inner cladding are each made of a resin composite, a cavity is formed between the outer cladding and the inner cladding, a cylindrical steel bar frame is installed in the cavity, fiber cloth is wound on the steel bar frame, fiber concrete is poured in a cavity body, and the outer contours of the outer cladding and the inner cladding are in hollow circular truncated cone shapes or cylinder shapes. The structure is simple, an existing tower tube mainly made of rolled steel can be replaced, the wind power tower tube has the advantages of being corrosion resistant, free of maintenance, high in strength, convenient to transport and construct, low in whole construction cost, capable of being installed and constructed on a site and the like, and the problems that an existing steel-structure tower tube is high in construction cost and inconvenient to transport, and needs to be subjected to corrosion prevention and maintenance at regular intervals are solved.

The invention relates a method for precisely grinding a small roller of a bearing with an automatic grinding device. The automatic grinding device comprises a baseplate, a grinding wheel device, a supporting wheel device, a baseplate additional plate, a guide wheel transverse feed device, a guide wheel driving device and an electric spindle device; a small roller is placed on a supporting wheel between a grinding wheel and a guide wheel in the perpendicular direction during grinding, and the small roller does not need to be centered and supported by an ejector pin; the excircle of the ground small roller is regarded as the location datum, and the grinding wheel and the guide wheel are rotated in the same direction; the circumferential velocity of the guide wheel is very low, and is 20-30 m / min, and the circumferential velocity of the grinding wheel is 60-80 times the circumferential velocity of the guide wheel; the small roller is rotated under the effect of friction force between thegrinding wheel and the small roller as well as between the guide wheel and the small roller, and large linear velocity difference exists at the contact area between the small roller and the grinding wheel so that materials are removed; in order to ensure the excircle roundness of the small roller, the center height of the small roller is the same as the center height of the grinding wheel; and thecenter of the guide wheel is higher 2-3 nm than a line connecting the axis of the small roller with the axis of the grinding wheel.

The invention belongs to the field of electrical insulation structure design and optimization design of ultra / extra high-voltage AC and DC power transmission equipment, and particularly relates to anultra / extra high-voltage gas insulated transformer type bushing with an explosion-proof and disaster-reducing function. The ultra / extra high-voltage gas insulated transformer type bushing includes a gas insulated bushing, an isolation buffer gas chamber connecting the gas insulated bushing to a transformer oil tank, and a shield ring at the end of the bushing. Insulated isolation supports are installed at both ends of the isolation buffer gas chamber. When the internal discharge inside the bushing causes the insulation isolation support on the bushing side to fracture, the isolation buffer gaschamber can achieve a buffer effect, prevent the gas from entering the transformer, stops the transformer oil from entering the fault bushing, reduces the combustion and explosion probability of thebushing and the transformer, and improves the safety and the reliability of the bushing and transformer.

The invention relates to a K1-type electrical connector assembly of a mineral insulated cable for nuclear power, and the assembly comprises a cable assembly, and a plug and a socket which are respectively spliced with two ends of the cable assembly. The cable assembly is characterized in that the cable assembly comprises a mineral cable, a corrugated pipe wrapped outside the mineral cable, a positioning plate for fixing the mineral cable, and a stainless steel pipe welded with the positioning plate; the stainless steel pipe is internally provided with a glue pouring area and a switching jack contact piece; the switching jack contact piece is of a double-end jack structure, one end of the switching jack contact piece is electrically connected with the mineral cable core wire through a barewire, and the other end is plugged with the plug or the socket; the plug comprises a connecting nut, a spline housing, an insulator part, and a glass sintering part which is in butt joint with the double-end jack contact part; the socket is of an integrated structure formed by sintering a socket shell, a glass cake II and a double-end contact pin contact piece II through glass. The assembly provided by the invention is resistant to irradiation and aging and long in service life, and it is guaranteed that the product can still be used after being subjected to severe accident working conditionswhile the using requirements of a nuclear-grade K1-type electrical connector are met.

The invention discloses a water sample pretreating device which comprises a box body, a water inlet pipe, an overflow pipe, a water draining pipe, a backwashing pipe, a mixer, a filter and a sampling pipe, wherein the box body comprises a pretreating cover and a pretreating box, the pretreating cover is fixedly connected with the pretreating box by virtue of a bolt; the filter and the mixer are both fixedly arranged on the pretreating cover and extend into the pretreating box; the mixer comprises a motor and a mixing knife, the motor is in driving connection with the mixing knife; the water inlet pipe is positioned at the lower end of the left side of the pretreating box, the overflow pipe is positioned at the upper end of the left side of the pretreating box, the water draining pipe is positioned in the middle of the bottom of the pretreating box; the backwashing pipe is fixedly arranged on the filter and extends into the filter; the sampling pipe is positioned on the filter and extends into the lower end of the filter. The water sample pretreating device has the characteristics of preventing permeation and leakage and preventing corrosion and is easy to maintain, and can be used for effectively improving the water sample treating efficiency, prolonging the cleaning and maintaining period and reducing the cleaning and maintaining difficulty.

A scheme of filling a sound-absorbing material between a panel and a back plate is adopted in an existing sound barrier sound-absorbing and sound-insulating unit plate; and the panel is fixed to the back plate in a rivet riveting mode, which leads to great inconvenience to engineering construction. In order to solve the problems, the invention provides an insertion plate type sound barrier sound-absorbing and sound-insulating unit plate. Microporous rock sound-absorbing and sound-insulating plates are adopted as a hard sound-absorbing and sound-insulating panel and a back plate, self-locking mechanisms are formed on the four sides of a metal frame, the middle of the metal frame does not need to be filled with a sound-absorbing material, the insertion plate type sound barrier sound-absorbing and sound-insulating unit plate is very convenient to produce and construct and more excellent in sound-absorbing and sound-insulating performance, and the material is non-toxic, non-irritant and free of any abnormal taste and volatile matter. The cross section of the metal frame on each side is formed by extrusion of aluminum alloy hollow core thin walls, the cross section size is accurate, the processing precision is high, advantages are created for installing a joint sealing material, and the material is light in weight and convenient to use. The cross section has high bending strength, and the unit plate does not shade, does not need painting, is easy to maintain and needs no maintenance.

The invention relates to a ratchet wheel parking braking device of a roller tractor. A limiting plate is provided with a guide groove, and an operating lever of a rocker arm assembly penetrates through the guide groove in the limiting plate to be hinged to a rocker arm shaft. An upper pin fixed on a rocker arm is arranged in a sliding chute of a hinged plate, the lower side of the hinged plate is hinged to a disk body of a camshaft through a lower pin, and the two ends of a first torsional spring are connected to the upper pin and the lower pin respectively. A cam, a parking braking stop block and a parking braking removing stop block are arranged on the end face of the disk body of the camshaft. A ratchet matched with a gear is arranged on the front upper portion of a ratchet wheel base on a ratchet wheel assembly, and the lower portion of the ratchet wheel base is arranged on a fixed shaft in a sleeved mode. The outer circumference of an idler wheel mounted on the side face of the ratchet wheel base is connected to the cam on the end face of the disk body in a pressing mode, the ratchet wheel base is provided with a limiting block corresponding to the parking braking stop block and a supporting seat corresponding to the parking braking removing stop block respectively. The two ends of a second torsional spring arranged on the fixed shaft in a sleeved mode are connected with the ratchet and a fixed seat respectively. The ratchet wheel parking braking device of the roller tractor is reasonable in structure, reliable in parking braking and free of maintenance.

The invention relates to a gas-insulated metal-closed switch cabinet, comprising a primary wiring device, wherein the wiring device is mainly composed of a circuit breaker, a line incoming and outgoing end of the circuit breaker, a bus coupling device for a combined cabinet, a line incoming and outgoing end of a bus chamber, and the bus chamber; the circuit breaker is in an external structure and is provided with the line incoming and outgoing end of the circuit breaker; the bus chamber is provided with the line incoming and outgoing end of the bus chamber; the line incoming and outgoing end of the circuit breaker is connected and conducted with the line incoming and outgoing end of the bus chamber through the bus coupling device for the combined cabinet so as to carry current; the circuit breaker is fixedly connected with the bus chamber through a bolt; and an insulating silica gel layer is pressed on the bus coupling device for the combined cabinet at the same time. The gas-insulated metal-closed switch cabinet disclosed by the invention not only has the advantages of convenience in maintainance, repair and replacement of circuit breaker elements in metal-closed air-insulated switch equipment, but also has the characteristics of miniaturization, intellectualization, free maintenance, full working conditions and the like.

The invention relates to a low-pressure hydrogen flame ionization detector which comprises a lower shell, a gas inlet pipe, an upper shell and a sealing barrel, wherein the lower shell comprises a disk base with a large diameter and a cylindrical base with a small diameter; a slot body is formed in each of the top of the cylindrical base and the bottom of the disk base; a through hole is formed between the two slot bodies; an air channel communicated with the through hole is formed in the bottom surface of the disk base; the upper end of the air inlet pipe is coaxially connected with a nozzle through a clamping sleeve and is connected into the slot body in the bottom of the disk base in a fastening manner; the nozzle passes through the through hole and is positioned in the slot body in the top of the cylindrical base; a gap is reserved between the nozzle and the inner wall of the through hole and is communicated with the air channel; an opening for feeding hydrogen is formed in one side of the gas inlet pipe; the upper shell is of a barrel-shaped structure; the lower end of the upper shell is connected to the top of the cylindrical base; an insulating sleeve is arranged in the upper shell; a collector is in tight fit in the insulation sleeve; the top of the upper shell is coaxially connected with a gas outlet pipe in a fastening manner; the opening end of the sealing barrel is connected with the disk base in a fastening sealing manner; the sealing barrel encircles the cylindrical base and the upper shell.

The invention discloses marine polysaccharide private antibacterial gel. The marine polysaccharide private antibacterial gel is prepared from the following components in parts by mass of 1-3 parts ofchlorhexidine gluconate; 10-15 parts of glycerin; 5-10 parts of Tween-20; 1-3 parts of a plant extract; 1-3 parts of algal polysaccharides; 1-3 parts of auxiliary materials, and 20-30 parts of pure water. The preparation method of the marine polysaccharide private antibacterial gel comprises the following steps of S1, sequentially adding glycerin, Tween-20, hydroxyethyl cellulose, hydroxypropyl methylcellulose and EDTA-2NA into water according to a proper ratio, and performing mixing. Extracts of radix sophorae flavescentis, fructus cnidii, Chinese prickly ash, jujube, rhizoma smilacis glabraeand fructus kochiae are scientifically matched, the effects of clearing heat, promoting diuresis, dispelling wind and arresting itching of traditional Chinese medicine components are better achievedthrough the mutual synergistic effect of Chinese herbal medicines, and through the optimal proportion of a biguanide mild antibacterial agent and algal polysaccharides, various plant extraction components are assisted. The antibacterial and itching-relieving effects of the product are guaranteed in multiple ways, meanwhile, the effects of maintaining, repairing, tightening and smoothing private parts are achieved, and the use is extremely safe and mild.

The invention discloses a wind power tower tube of a resin cladding frame and fiber reinforced concrete and a construction method. The wind power tower tube comprises an outer cladding and an inner cladding. The outer cladding and the inner cladding are each made of a resin composite, a cavity is formed between the outer cladding and the inner cladding, a cylindrical steel bar frame is installed in the cavity, fiber cloth is wound on the steel bar frame, fiber concrete is poured in a cavity body, and the outer contours of the outer cladding and the inner cladding are in hollow circular truncated cone shapes or cylinder shapes. The structure is simple, an existing tower tube mainly made of rolled steel can be replaced, the wind power tower tube has the advantages of being corrosion resistant, free of maintenance, high in strength, convenient to transport and construct, low in whole construction cost, capable of being installed and constructed on a site and the like, and the problems that an existing steel-structure tower tube is high in construction cost and inconvenient to transport, and needs to be subjected to corrosion prevention and maintenance at regular intervals are solved.

The invention relates to a low-heat-conductivity A-grade non-ignitable sandwich insulation board and a manufacturing method thereof. The insulation board is formed by compounding a lower-layer board, a middle core layer and an upper-layer board. The upper-layer board and the lower-layer board are both high-strength fiber cement boards or high-strength calcium silicate boards or cement felt. A vacuum plate or a combined body of mineral wool sliver / mineral wool felt and modified rigid polyurethane foam is adopted as the middle core layer. The modified rigid polyurethane foam is prepared from, by weight, polyhydric alcohol materials, ethylenediamine poly propylene oxide tetraol, melamine, a triethylene diamine solution, dichloroethane, polyaldoxyl ether copolymer, tri(2-chloroethyl)phosphate and isocyanate. According to the insulation board, the advantages of organic and inorganic materials are complemented, superposition and efficiency increase can be achieved, the ideal technical effects of heat insulation and energy saving can be achieved, the fireproof grade of the insulation board can reach the grade A, and the practical technical effects of heat insulation and energy saving and fire prevention and flame retarding are achieved.

The invention, which belongs to the field of the electrical appliance insulation structure design and optimization design of ultra / extra-high-voltage AC and DC power transmission equipment, particularly relates to an air-buffer-chamber-included explosion-proof bushing for an ultra / high-voltage gas insulated transformer. The explosion-proof bushing comprises a gas insulated bushing, an isolated airbuffer chamber connecting the gas insulated bushing with a transformer oil tank, and a shielding ring arranged at the end portion of the bushing. Insulating isolated supports are installed at the twoends of the isolated air buffer chamber. When the insulating isolated supports at the bushing side are damaged due to internal discharging of the bushing, the isolated air buffer chamber plays a rolein buffering so as to prevent the gas from entering the transformer; and entrance of the transformer oil into the faulty bushing is prevented, so that the probability of combustion and explosion of the bushing and the transformer is reduced and the safety and reliability of the bushing and the transformer are enhanced.

The invention relates to a K1 type electrical connector assembly for a mineral insulated cable for nuclear power, comprising a cable assembly, a plug and a socket plugged into both ends of the cable assembly, the cable assembly includes a mineral cable, a corrugated tube wrapped outside the mineral cable, and a The positioning plate for fixing the mineral cable and the stainless steel tube welded with the positioning plate; the stainless steel tube is provided with a glue filling area and a transfer jack contact; the transfer jack contact is a double-ended jack structure, one end of which is connected to Mineral cable core wires are electrically connected, and the other end is mated with a plug or socket; the plug includes a connecting nut, a splined housing, an insulator part, and a glass sintered part mated with a double-ended socket contact; the socket consists of a socket housing, The glass cake II and the double-head pin contact II are made into an integrated structure through glass sintering; the invention is resistant to radiation, aging, and has a long service life. Remains usable after severe accident conditions.

The invention discloses a satellite overall parameter modeling and optimizing method based on SysML. The satellite overall parameter modeling and optimizing method is achieved through the following steps: (1) performing system modeling on a complex product from the four dimensions of requirement, function, structure and parameter based on the SysML; (2) establishing a three-level index system of an overall performance index (MoE), a performance index (MoP) and a technical performance index (TPM), and realizing mapping from user demands to system implementation end performance parameters; and (3) defining a design variable, constraining and optimizing an objective function and establishing an analysis model of each subject based on a parameter diagram of the SysML model library, and completing a parameter optimization task in the conceptual design stage of the remote sensing satellite by adopting a collaborative optimization method based on a SysML model and a genetic algorithm. According to the method, the project period can be shortened, and a reference basis is provided for optimization design of other complex projects.

A scheme of filling a sound-absorbing material between a panel and a back plate is adopted in an existing sound barrier sound-absorbing and sound-insulating unit plate; and the panel is fixed to the back plate in a rivet riveting mode, which leads to great inconvenience to engineering construction. In order to solve the problems, the invention provides an insertion plate type sound barrier sound-absorbing and sound-insulating unit plate. Microporous rock sound-absorbing and sound-insulating plates are adopted as a hard sound-absorbing and sound-insulating panel and a back plate, self-locking mechanisms are formed on the four sides of a metal frame, the middle of the metal frame does not need to be filled with a sound-absorbing material, the insertion plate type sound barrier sound-absorbing and sound-insulating unit plate is very convenient to produce and construct and more excellent in sound-absorbing and sound-insulating performance, and the material is non-toxic, non-irritant and free of any abnormal taste and volatile matter. The cross section of the metal frame on each side is formed by extrusion of aluminum alloy hollow core thin walls, the cross section size is accurate, the processing precision is high, advantages are created for installing a joint sealing material, and the material is light in weight and convenient to use. The cross section has high bending strength, and the unit plate does not shade, does not need painting, is easy to maintain and needs no maintenance.

The invention discloses an application method of an automatic grinding machine used for grinding a small roller and provided with a patching sharpening grinding wheel. The automatic grinding machine comprises a lathe bed, a marble table board, a bottom plate, a graphite wheel sliding plate drive device, a graphite wheel drive device, a grinding wheel device, a sharpening copper ring device, a vertical sharpening sliding plate device, a vertical sharpening drive device, an electric spindle device, a guide wheel transverse feed device, a guide wheel drive device, a supporting wheel device, the small roller, a graphite wheel sharpening device and angle plates. According to the automatic grinding machine, the small roller is subjected to grinding machining, meanwhile, the grinding wheel can becorrected online, the sharpening grinding wheel can be electrolyzed online, and therefore the grinding forming precision of the small roller is improved, the grinding efficiency is greatly improved,and cost is low; and due to the fact that the grinding size consistency of the small roller is good, the quality is stable and reliable, and the advantages that adjustment, mounting, maintaining and use are convenient are achieved.