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69 results about "Arc column" patented technology
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Fault detection method and system based on lightning protection device performance data
PendingCN121231880ATesting dielectric strengthThermometers using electric/magnetic elementsEngineeringAtmospheric sciences
The invention discloses a fault detection method and system based on lightning protection device performance data, and relates to the technical field of fault detection, and the method comprises the steps: capturing the airflow velocity and airflow pressure deviation of a multi-crack outlet of a lightning protection device under the impact of a high lightning current in real time, and collecting the arc length data of an outlet point of the lightning protection device, and the temperature and instantaneous arc resistance of the thermocouple induction arc column are calculated. According to the method, the normalized airflow energy density and arc energy density features are combined into the joint feature sequence, so that the coupling relationship between the airflow performance and the arc discharge behavior of the lightning protection device can be captured, and the global detection state of slow evolution and instantaneous mutation of the equipment fault is realized; the lightning stroke threat intensity can be independently reflected by defining the dynamic risk index, lightning stroke threat propagation and topological network characteristics are combined in combination with lightning protection device performance detection data, and therefore transmission effect modeling of the lightning stroke dynamic risk is achieved.
Owner:SHENZHEN ZHONGPENG NEW ELECTRIC TECH CO LTD
Anti-shaking device for steel wire rope of elevator
The utility model discloses an anti-shaking device for an elevator steel wire rope, and relates to the technical field of elevator steel wire ropes. The device comprises a connecting wall, one side of the connecting wall is provided with a first annular plate, one side of the first annular plate is provided with an annular groove and a notch communicated with the annular groove, two arc-shaped columns are placed in the annular groove, and the outer side walls of the arc-shaped columns are provided with arc-shaped plates; the second annular plate is arranged on the peripheral side of the first annular plate in a sleeving mode, and the inner side wall of the second annular plate is arranged on the outer side wall of the arc-shaped plate in a threaded fit mode. According to the steel wire rope, the arc-shaped plate is arranged, so that the arc-shaped plate positions the arc-shaped column in the annular groove under the action of the second annular plate, the shaking amplitude of the steel wire rope body is reduced through the second annular plate, the situation that a speed limiter in the prior art breaks down is reduced, and the safety of an elevator during use is improved.
Owner:ANHUI GUOZHAN ELECTROMECHANICAL CO LTD
Device and method for improving through-flow arc control of high-voltage large-capacity gas gap switch
The invention relates to a device for improving the through-flow arc control of a high-voltage large-capacity gas gap switch, and the device comprises a test cavity which is used for providing a controllable gas insulation environment and serves as a carrier of a high-voltage large-current discharge test; the trigger discharge loop is used for generating a high-voltage pulse to drive the trigger cavity to generate plasma jet and induce the main gap to be broken down and conducted at a preset moment; and the large current generation loop is used for storing energy and generating a high-energy fault current simulating an actual working condition after the main gap is conducted. A main gap can form a stable and controllable initial discharge channel under high-voltage and large-gap conditions, active constraint is carried out on an arc movement track in a high-energy fault current flowing stage, and long-term residence of an arc root in a local area of an electrode is avoided, so that the ablation degree of the electrode is remarkably reduced, the through-flow life is prolonged, and meanwhile, the service life of the electrode is prolonged. A transverse magnetic field generated by the spiral groove structure enables an electric arc to rotate along the surface of the electrode, the stability of an arc column is effectively improved, and the reliability under the condition of large current flow is improved.
Owner:STATE GRID ANHUI ELECTRIC POWER CO LTD BOZHOU POWER SUPPLY CO
Floating ball valve
The utility model discloses a floating ball valve which comprises a ball body, a cushion block and a valve rod. Wherein a groove is formed in the surface of the ball body; the cushion block is of an arc-shaped cylinder structure, and after the cushion block is embedded into the groove, the groove becomes a linear groove body; the valve rod is matched with the linear groove body, and the ball body is driven to rotate through the cushion block. According to the floating ball valve, the connecting structure of the valve rod and the ball body is optimized, the structure can effectively disperse loads borne when the valve rod rotates and when the groove face of the ball body makes linear contact with the valve rod, stress concentration is reduced, the reliability of the floating ball valve is improved, and the service life of the floating ball valve is prolonged. And the connection and disassembly processes of the valve rod and the ball body are easy to operate, maintenance and repair are convenient, and the maintenance cost is reduced.
Owner:CHANGZHENG ENG +1
High-precision inertia ring and circumferential quality compensation forming process thereof
PendingCN121977045AImprove dynamic balance accuracyImprove running stabilityInertia force compensationRotating bodies balancingDynamic balanceStructural engineering
The invention relates to the technical field of inertia rings, and discloses a high-precision inertia ring and a circumferential mass compensation forming process thereof.The high-precision inertia ring comprises a plurality of arc-shaped cylinders, the multiple arc-shaped cylinders are sequentially connected end to end to form the inertia ring of a closed annular structure, every two adjacent arc-shaped cylinders are fixedly connected through a welding seam at the splicing position, and a containing groove is formed in the splicing position; the containing groove is filled with a balance weight piece, and the balance weight piece is used for correcting the uniformity of mass distribution in the circumferential direction of the inertia ring. According to the high-precision inertia ring and the circumferential mass compensation forming process thereof, the accommodating groove at the splicing part is filled with the counterweight piece capable of compensating the mass deviation, so that the circumferential mass of the inertia ring is accurately adjusted; the technical problem of uneven circumferential mass distribution caused by factors such as welding process fluctuation, uneven solder filling and operation difference of an existing inertia ring formed through stamping and welding is solved from the structural level, and the dynamic balance precision and the operation stability of the inertia ring during high-speed rotation are remarkably improved.
Owner:JINGJIANG SANPENG MOLD TECH CO LTD
Adapter of notebook computer power adapter with variable pins
ActiveCN224036687USecuring/insulating coupling contact membersCoupling contact membersConvertersStructural engineering
The utility model provides an adapter of a notebook computer power adapter with variable pins, which comprises a plug shell (1), a rotating hub, a hub seat, a triangular concave part, a triangular rib, a convex drum, a rectangular hole, a circular truncated cone opening, a handle, a double-spring piece, an arc column rib, a blocking rib, a sliding groove, a sliding rail, a spring piece bayonet, a fork-shaped spring piece, an arc-shaped elastic piece, a gap, a pointer, a positioning block, a positioning mark and a positioning groove. The rotating hub, the hand pinching part, the double-spring piece, the blocking rib, the sliding groove and the sliding rail form a variable mechanism, the triangular concave part, the triangular rib, the pointer and the positioning mark form a positioning mechanism, the null line pin, the live wire pin and the ground wire pin are variable plugs, the sliding rail is arranged on the upper portion of an inner cavity of the plug shell, and when the converter is connected with a wall power panel, the number of the pins of the converter can be changed. A two-hole power supply panel can be inserted, and a three-hole power supply panel can also be inserted.
Owner:YANCHENG INST OF IND TECH +1
A PTC heat generating device
ActiveCN109219167BOhmic-resistance electrodesOhmic-resistance waterproof/air-tight sealsArc columnMechanical engineering
The application discloses a PTC heating device, which comprises a heating core, a heat-conducting aluminum pipe and a radiator, and an arc column reinforcing rib is arranged on one side of the heat-conducting aluminum pipe of the heating device. The application improves the strength of the heating device, eliminates the hidden danger of the interference between a fuse lead wire and a body, and meets a series of structural, technological and reliability effects such as compact structure, reliable work and safe use.
Owner:WUXI GUOWEI CERAMIC ELECTRICAL APPLIANCES CO LTD
Arc-shaped bracket mounting equipment in cable tunnel
ActiveCN224218094UCable installations in tunnelsApparatus for laying cablesStructural engineeringControl theory
The utility model discloses an installation device for an arc-shaped support in a cable tunnel. The installation device comprises an installation device body located in the tunnel and an arc-shaped stand column connected with the installation device body. The mounting equipment body comprises a base frame and a hanging support rotating mechanism connected with the base frame; the hanging support rotating mechanism comprises a cross-shaped lifting assembly which comprises a lifting fixing frame connected with the base frame, a lifting moving frame matched with the lifting fixing frame and a cross-shaped sliding frame installed at the end of the lifting moving frame and in sliding fit with the base frame, and a lifting vertical lifting push rod with the output end connected with the lifting moving frame is arranged in the lifting fixing frame; the rotary opening assemblies are symmetrically arranged on the two sides of the cross-shaped lifting assembly. Compared with traditional lifting equipment, the arc-shaped support can be automatically installed, the installation efficiency is improved, the installation cost is reduced, narrow space is utilized, adverse factors are converted into favorable factors, the base frame has certain compression resistance and bending resistance due to the fact that the base frame is upwards ejected and downwards pressed, and the effects of balancing weight and stable lifting are achieved.
Owner:MEIAN NEW ENERGY (JIANGSU) CO LTD
Power transmission line hanging object processing device
The utility model relates to the technical field of electric power transmission, in particular to an electric power transmission line hanging object processing device which comprises a device base, a movable rod is slidably inserted into one side of the device base, a preformed hole is formed in the surface of the device base, and a threaded rod is movably inserted into the preformed hole; an arc-shaped groove is formed in the surface of the moving rod, a push rod is slidably inserted into the arc-shaped groove, a square shell is fixed to one side of the moving rod, a fixing plate is fixed to the top end of the square shell, limiting columns are hinged to the two ends of the fixing plate, clamping blocks are fixed to one sides of the limiting columns, and arc-shaped columns are hinged to one sides of the clamping blocks; and a square block is hinged to the other end of the arc-shaped column. The arc-shaped column, the clamping block, the connecting rod, the square block and the push rod are matched for use, so that the purpose of improving the treatment stability can be achieved, a suspended object can be quickly and accurately clamped, and the treatment time is shortened.
Owner:RIZHAO SHANHAITIAN ARCHITECTURE INSTALL ENG CO LTD
X-ray machine transillumination support
The utility model relates to the technical field of X-ray machine auxiliary equipment, in particular to an X-ray machine transillumination support which comprises a bottom frame, a supporting frame, a supporting table, an electric push rod, a sliding rail and an auxiliary unit, the auxiliary unit comprises an arc column, a U-shaped plate, a connecting plate, a base, a sliding rod, a spring, a plurality of rolling rollers and a locking assembly, and the X-ray machine is placed on the supporting table; at the moment, the connecting plate shares the pressure borne by the supporting table, the gravity of the connecting plate can act on the U-shaped plate, the rolling roller abuts against the base to move rightwards in the U-shaped plate, so that the spring is compressed, the counter-acting force of the spring is facilitated to firmly drive the rolling roller to make contact with the arc column, and the locking assembly is used for fixing the X-ray machine. In this way, the pressure of the contact face of the supporting table and the sliding rail is shared, abrasion is reduced, and normal work of medical workers is guaranteed.
Owner:张茂军
A marine floating body assembly simulator
The utility model discloses a kind of offshore floating body assembling simulators, it is related to simulation equipment technical field, including simulation practice room, still including having the teaching console of being arranged in the inside of simulation practice room, command post, driving console, visual imaging system and multiple workstations;The workstation includes deck operation operating platform, electromechanical equipment operating platform, winch operating platform, splicing hand workstation, the beneficial effects of the utility model are that: by using collective equipment, and using arc column curtain, the teaching control, command, driving control, deck operation, electromechanical equipment operation, winch operation, splicing hand operation etc. Operation involved in offshore floating body assembling process can be hardware supported, the non-real field simulation of floating body splicing is conveniently carried out, and the efficiency, effect of floating body assembling simulation operation is improved. Simulation operation can be carried out indoors, is not affected by weather, time, environment, improves the security of simulation operation, and reduces cost.
Owner:RES INST OF MILITARY TRANSPORTATION ARMY MILITARY TRANSPORTATION COLLEGE CHINESE PEOPLES LIBERATION ARMY
Arc-shaped column-wrapped aluminum veneer convenient to disassemble
The application belongs to the technical field of column wrapping, and provides a circular-arc column wrapping aluminum veneer convenient to disassemble, which comprises an arc-shaped aluminum veneer body, a plurality of groups of installation grooves are formed in the side surface of the aluminum veneer body, and a clamping groove is formed in the aluminum veneer body at a position corresponding to the installation grooves, a moving frame is arranged in the installation groove, the moving frame extends out of the installation groove, and a limiting plate is slidingly installed at the end of the moving frame, an elastic member is fixedly installed on the moving frame, and the end of the elastic member away from the moving frame is fixedly connected with the limiting plate. Compared with the prior art, the beneficial effects of the application are as follows: through the fixation of the limiting plate and the fixed plate on the two groups of aluminum veneer bodies, when disassembling subsequently, the limiting plate is moved upward by the lower base plate to make the lower end of the limiting plate higher than the height of the fixed plate, so that the fixation is released, only one step is needed to release the fixation, and the disassembly efficiency of the aluminum veneer body is greatly improved.
Owner:LONGDU IND GRP CO LTD
Arc extinguishing device, starting switch and method
The invention belongs to the field of starting switches, and discloses an arc extinguishing device, a starting switch and a method, and a composite arc extinguishing structure is formed by arranging an axially extending insulating cylinder on the moving path of a moving contact and a static contact, designing a continuous arc constraint unit on the inner wall and forming a heat dissipation groove in the outer wall. When an electric arc is generated, the inner wall restraining units force the electric arc to crawl along a spiral or broken line path through physical blocking, the electric arc length is remarkably prolonged, arc resistance is increased, and electric arc energy dissipation is accelerated; and meanwhile, the outer wall heat dissipation grooves quickly lead out the high temperature of the arc through air convection, and the arc column temperature and the ion concentration are reduced. The electric arc is fully stretched and cooled in a limited space through path extension, heat accumulation is continuously reduced through the heat dissipation grooves, and the electric arc cannot be reignited after current zero crossing is jointly promoted. The device effectively solves the problems of long arcing time and serious contact ablation of the original equipment, improves the large capacitive current breaking capacity, and eliminates the equipment stability and potential safety hazards caused by electric arc thermal erosion.
Owner:CHINA THREE GORGES PROJECTS DEV CO LTD +1
Island platform (circular column)
1. Name of the product in this design: Island Stand (Arc Column). 2. Purpose of this design: For storing and organizing items. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.
Owner:SHANGHAI IDEAL HOME TECHNOLOGY CO LTD
Construction engineering building climbing frame
The utility model discloses a building climbing frame for building engineering, and relates to the field of building construction. The device comprises a combined type climbing frame, safety protection side end assemblies and safety protection side end assemblies, the combined type climbing frame comprises scaffold boards, safety protection boards and safety protection side end assemblies, the safety protection boards of the safety protection side end assemblies are arranged at the outer end of a construction working face, and the safety protection side end assemblies are arranged in a left group and a right group and internally comprise short transverse columns, short transverse columns and short transverse columns. The short transverse columns are further used for supporting the scaffold boards, and the safety arc columns and the safety protection side end assemblies are arranged outside the short transverse columns. According to the device, when a constructor climbs upwards through the short transverse columns on the two sides, the back of the constructor can be protected by the safety arc columns, the constructor can be supported by the safety arc columns when leaning backwards, meanwhile, the short transverse columns can adjust the height of the scaffold board, and therefore the safety of the device is greatly improved, certain adjustability is achieved, and the safety of the constructor is improved. And the universality of the device is improved.
Owner:SHANDONG XIDI REAL ESTATE CO LTD
Automobile wire harness thermal shrinkage device
The utility model relates to the technical field of automobile wire harness processing, and discloses an automobile wire harness thermal shrinkage device, which comprises a fixed box and an air heater, the inner wall of the bottom of the fixed box is fixedly connected with a plurality of fixed columns, the close sides of the plurality of fixed columns are fixedly connected with a pipeline, the rear side of the pipeline is fixedly connected with a connecting pipe, and the connecting pipe is fixedly connected with the air heater. A square box is fixedly connected to the inner wall of the bottom of the fixed box, a rotating rod is rotatably connected to the interior of the square box, a rotating plate is fixedly connected to the exterior of the rotating rod, a cylinder is fixedly connected to the top of the rotating plate, a sleeve column sleeves the exterior of the cylinder, and an arc-shaped column is rotatably connected to the exterior of the sleeve column. According to the utility model, the hot-air blower can be assembled and disassembled, so that the hot-air blower can be conveniently disassembled, and technicians can more efficiently inspect and maintain the hot-air blower and replace faulty parts such as a motor and a heating element, thereby reducing the maintenance cost and downtime of equipment.
Owner:黄幼响
Plasma cutting machine for steel structure machining
The invention belongs to the technical field of plasma cutting machines, and particularly relates to a plasma cutting machine for steel structure machining. A body is included; a cutting gun; a connecting plate body is mounted at the output end of the machine body; the cutting gun is mounted on the connecting plate body; the cutting gun is connected with the output end of the machine body; a rotating protection component is arranged on the connecting plate body; the rotating protection component comprises a rotating base which is mounted on the connecting plate body; the rotating arc column is connected to the rotating base in a penetrating manner; the rotating arc column is in running fit with the rotating base; the rotating limiting plate is mounted at one end of the rotating arc column; the protective baffle is mounted at the other end of the rotating arc column; an exhaust purification unit is arranged on the protective baffle; the exhaust purification unit comprises a ventilation groove which is formed in the outer wall of the protective baffle and extends to the inner wall; therefore, cutting sparks and slag splashing are effectively blocked, operators are prevented from being burnt, the operation safety and the equipment using effect are improved, and meanwhile the limitation of actual use of the equipment is reduced.
Owner:LIAONING HUASHENG STEEL STRUCTURE ENG CO LTD
Lithium electric arc stud welding machine
1. The name of the design product: lithium electricity arc column welding machine. 2. The use of the design product: for welding. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.
Owner:HUIZHOU XINGLIBEI ELECTRONIC TECHNOLOGY CO LTD
Line transient breakdown modeling method suitable for construction of distribution network traveling wave detection environment
PendingCN121480161ADesign optimisation/simulationSpecial data processing applicationsWaveform analysisWave detection
The invention relates to a line transient breakdown modeling method suitable for construction of a distribution network traveling wave detection environment. The line transient breakdown modeling method is used for solving the problem of transient fault modeling of experimental verification of a traveling wave distance measuring device at present. The method comprises the following steps: S1, constructing a black box Mayr model of an electric arc; considering that the diameter of the arc column is a constant value, the longer the distance between the section of the arc column and the circle center is, the lower the temperature is. S2, constructing a magnetohydrodynamic model; by means of a finite element method, grid division is conducted on the electric arc, solving is conducted through a multi-physical field coupling relation, and physical distribution characteristics in the electric arc are obtained; s3, constructing an instantaneous breakdown arc model; construction is carried out through a COMSOL system, the COMSOL system provides a geometric module, and drawing or structure size information of a line is utilized; s4, simulating to obtain instantaneous breakdown current and voltage waveform analysis; the metal shielding current is the arc current of the fault, and the wire core voltage is the arc voltage.
Owner:SUQIAN POWER SUPPLY COMPANY OF JIANGSU PROVINCE POWER
Plasma atomization powder preparation method and equipment for preparing high-melting-point powder
The invention relates to the technical field of powder manufacturing, and discloses a plasma atomization pulverization method and equipment for preparing high-melting-point powder, and the method comprises the following steps: generating a high-temperature plasma jet by using a non-transferred arc plasma torch, feeding a wire of a high-melting-point material into an anode channel of the plasma torch along the direction opposite to the flowing direction of the plasma jet, the method comprises the following steps: feeding a wire into a plasma arc column area, stretching the wire into a high-temperature area of the plasma arc column area, melting the wire in the high-temperature area of the plasma arc column area, and blowing away and atomizing molten metal drops formed by melting by utilizing plasma jet flow to form spherical powder particles. Equivalently, the staying and heating time of the high-melting-point material in a plasma arc column core area with the highest temperature is prolonged, so that sufficient energy input of the high-melting-point material can be ensured, and sufficient and stable melting is realized.
Owner:CHANGZHOU YILI ADDITIVE TECHNOLOGY CO LTD
Fabricated sound-absorbing enclosing wall structure
The utility model relates to the field of buildings, and discloses a fabricated sound-absorbing enclosing wall structure which comprises a conical section foundation, bearing columns are arranged at the top of the conical section foundation, a bearing wall, a wall body and an arc-shaped wall cap are sequentially arranged between the adjacent bearing columns from bottom to top, and an arc-shaped column cap is arranged at the top of each bearing column. Compared with the prior art, the utility model has the advantages that: the construction speed is high, an assembly type structure is adopted, only assembly is needed on site, and the construction period is greatly shortened; cost is low, factory prefabrication is achieved, and on-site labor and material cost is reduced; maintenance is easy, all parts are detachable, and maintenance and replacement are convenient; the sound absorption effect is good, the perforated foamed concrete has good sound absorption performance, and the sound insulation effect of the enclosing wall is improved; the structure is stable, and the stability and shock resistance of the structure are enhanced through connection of the tenon-and-mortise structure and the high-strength bolts.
Owner:HENAN FANGKE PREFABRICATED CONSTRUCTION CO LTD
Hinge bending detection equipment
A hinge bending detection device disclosed by the present invention comprises a control carrying assembly and an upper measuring mechanism, the inner side of the upper part of the control carrying assembly is provided with a lower measuring mechanism sleeved by a bolt, and the outer side of the control carrying assembly is provided with a lifting adjusting part assembled by the bolt. And an upper measuring mechanism assembled by a bolt is arranged on the inner top side of the lifting adjusting component. According to the device, the lifting frame is adjusted to a proper height position mainly through spiral operation of the lead screw and the lifting frame, a product is positioned through the array base plate, the pneumatic telescopic rod and the arc-shaped column, and in this way, the length is adjusted to a proper position after the upper hinge threaded rod is matched and subjected to spiral adjustment; and the hinge base is flexibly matched with the mounting hole site, so that the rotary table, the hinge threaded rod and the hinge base are subjected to reciprocating hinge transmission after the rotary table and the electric rotary seat are subjected to transmission operation, and the test requirement of the bending angle range of multiple groups of products is met.
Owner:ANHUI HANSHENG NEW METAL TECH
High-deposition-rate material adding method for cutting molten drops through magnetic pulses
The invention belongs to the technical field of metal additive manufacturing and welding, and relates to a magnetic pulse cutting molten drop high-deposition-rate additive manufacturing method which specifically comprises the steps that a magnetic pulse cutting coil is arranged on the outer side of a nozzle of a welding gun, pulse current is introduced into the magnetic pulse cutting coil in the electric arc additive manufacturing process, and a pulsed magnetic field is formed; the pulsed magnetic field is used for cutting molten drops or liquid-state small bridges in the corresponding stage of molten drop growth, and the center of the magnetic pulse cutting coil is kept flush with the end face of the welding wire. According to the invention, the pulse current is introduced into the magnetic pulse cutting coil, so that the generated pulse magnetic field directly acts on the pulse molten drop joint or the liquid bridge, the accurate size control and rapid separation of the molten drops are realized, and the transition speed is increased; and the pulsed magnetic field can instantaneously compress the electric arc before molten drop transition, so that the arc column is contracted, the energy density is improved, meanwhile, the transverse swing of the electric arc is reduced, the local heating concentration ratio is improved, and splashing and air holes are reduced.
Owner:WUHAN UNIV
A broadband electromagnetic transient model modeling method, system, device and storage medium
This invention belongs to the field of transformers and discloses a broadband electromagnetic transient modeling method, system, device, and storage medium, including the following processes: Based on the transformer's geometric dimensions and magnetization characteristics, a frequency-varying magnetoresistive topology network is established; the broadband equivalent capacitance matrix and part of the inductance matrix of the transformer windings are extracted and integrated to construct a broadband admittance matrix of the windings; the geometric steady-state resistance of the plasma arc column is calculated, and a dynamic differential equation for the time-varying arc resistance of the plasma arc column is established; an augmented state-space equation describing the dynamic evolution of the transformer before and after a fault is constructed; the above are integrated to construct a time-domain multiphysics joint solution model, and the time-domain multiphysics joint solution model is verified by time-domain joint solution and frequency-domain impedance scanning to obtain a broadband electromagnetic transient model. This enables accurate simulation of complex broadband transient processes inside the transformer.
Owner:XI AN JIAOTONG UNIV
Broiler plucking and killing integrated device
The application discloses a broiler plucking and slaughtering integrated device, a top of an inner wall of a first cylinder is provided with a second annular groove, an inside of the first cylinder is provided with a fixing column, a top of the fixing column is rotationally connected with a second gear, a side position of a top center of the second gear is rotationally connected with an arc-shaped column, both sides of the arc-shaped column are provided with second fixing blocks, an inside of the arc-shaped column is slidably connected with an arc-shaped fixing column, the gear drives the first gear to rotate, the first gear drives the curved sliding block to rotate, the curved sliding block rotates to drive the fixing block to move left and right through the annular groove, the fixing block drives the arc-shaped plate to move left and right, the arc-shaped plate drives the depilatory rod to move left and right, and the broiler in the depilatory tank is extruded and beaten, so that the broiler is quickly depilated.
Owner:FUJIAN SUNNER DEV
Detachable chute side baffle
Owner:JIANGXI XINPENG IND EQUIP MFG CO LTD
A coal bunker unblocking device
This utility model discloses a coal bunker unblocking device, relating to the technical field of unblocking devices. The utility model includes an unblocking box, on which a compression chamber is fixedly fitted. Two curved material channels are connected and communicated between the compression chamber and the unblocking box. Two arc-shaped columns are slidably fitted onto the outer walls of the curved material channels. A clamping plate is engaged with the outer wall of each arc-shaped column. A first scraper is fixedly fitted onto the upper part of the clamping plate. A second scraper is elastically and slidably fitted onto one side of the first scraper. This utility model, by using the first and second scrapers located within the curved material channels and utilizing the sliding motion of the arc-shaped columns to move the first and second scrapers, reduces the problem of coal accumulation and stagnation within the curved material channels, lowers the risk of blockage, and improves the conveying efficiency of coal from the compression chamber to the unblocking box, thereby enhancing the working efficiency of the unblocking box.
Owner:NANYANG ZHENGHUA IND CO LTD
Electric machine and electric appliance having the same
The application discloses a motor and an electrical appliance with the same. The motor comprises a rotor and a stator, the rotor comprises a plurality of permanent magnets arranged at intervals in the circumferential direction of the rotor, and the stator comprises a stator core, the stator core comprises a stator yoke and a plurality of stator tooth shoes, the stator yoke is annular, the plurality of stator tooth shoes are connected to the side of the stator yoke facing the permanent magnets and arranged at intervals in the circumferential direction of the stator yoke, wherein, in the radial direction of the rotor, at least part of the side surface of the permanent magnet facing the stator core is formed into a first arc surface, the side surface of the stator tooth shoe facing the permanent magnet is formed into a tooth shoe arc surface, the first arc surface and the tooth shoe arc surface are both arc cylindrical surfaces extending in the circumferential direction of the rotor and protruding outward in the radial direction, and the ratio between the length of the first arc surface and the length of the tooth shoe arc surface in the circumferential direction of the rotor is 0.8-1.25. According to the motor, the motor has a good mute effect during operation, and the use experience of users is greatly improved.
Owner:GUANGDONG WELLING ELECTRIC MACHINE MFG
Repairing and reinforcing device for condensate drain valve of pressure pipeline
The utility model relates to a repairing and reinforcing device for a condensate drain valve of a pressure pipeline, which comprises a reinforcing ring, a pipe cap and a sealing structure, the reinforcing ring is arranged around the top of the outer side of the pipe cap, the upper surface of the reinforcing ring is an arc-shaped cylindrical surface matched with the outer surface of the pressure pipeline, the heights of the two sides of the arc-shaped cylindrical surface are different, and the height of the arc-shaped cylindrical surface is larger than that of the pipe cap. A hollow portion used for containing a condensate drain valve is arranged in the pipe cap, and the sealing structure is installed at the bottom of the pipe cap and used for sealing the pipe cap. The quick repair device is simple in structure, convenient to install, low in manufacturing cost and capable of achieving quick repair of faults at the condensate drain valve of the pressure pipeline.
Owner:HUIZHOU DAYA BAY HUADE PETROCHEMICAL CO LTD
Intelligent protection method for new energy high-low voltage direct current relay
ActiveCN121417097AEmergency protective arrangement detailsEmergency protective arrangements for automatic disconnectionHeat fluxLow voltage
The invention relates to an intelligent protection method for a new-energy high-low-voltage direct-current relay, and the method comprises the steps: monitoring the real-time spectrum data of metal steam in an arc channel when the relay cuts off a large current, and determining the radial heat flux density; a continuous radial heat flow distribution curve is generated, and the radial distribution non-uniformity of the arc column temperature gradient is obtained; if the radial distribution non-uniformity exceeds a preset non-uniformity threshold value, the forming trend of the deflection angle of the arc channel is obtained; performing dynamic modeling and prediction analysis processing on the formation trend of the arc track curvature and the arc channel deflection angle; monitoring a radial convection speed and a heat convection speed in the arc extinguish chamber, and determining a dynamic adjustment parameter of a gas flow mode; adjusting gas flow distribution in the arc extinguish chamber and pressure gradient in the channel according to the dynamic adjustment parameters of the gas flow mode; and adjusting the airflow direction and the radial convection speed in the arc extinguish chamber according to the control scheme. According to the invention, the on-off stability and safety of the direct-current relay are obviously improved, and reliable operation of equipment under complex working conditions is guaranteed.
Owner:SHENZHEN YOULITONG NEW ENERGY TECH CO LTD