14 results about "Arc column" patented technology

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.

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.

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.

This utility model discloses a high-precision turning table, including a support frame and a base. The base is movably mounted on the top of the support frame, and a support seat is mounted on the top of the base. A cylindrical tube is mounted on the top of the support seat, and a sector-shaped disk is mounted on the side wall of the cylindrical tube. An arc-shaped column is provided on the outside of the sector-shaped disk, and a scale dial body is mounted on the side wall of the arc-shaped column. A circular disk is provided on the outside of the arc-shaped column. This utility model not only achieves convenient rotational adjustment of the turning table, facilitating quick and stable clamping of workpieces and increasing the rotational range of the turning table, but also improves the rotational flexibility of the turning table and enhances the convenience of quick and stable clamping of workpieces.

A kind of ion deflection system of multifunctional inductively coupled plasma mass spectrometer, including core deflection lens group, ion focusing lens group and assembly part;The ion deflection system can make the flight direction of ion with certain angle deflection;And, by adjusting the direct current voltage applied on core deflection lens group and ion focusing lens group, it can be switched between "full pass mode" and "pre-screening mode".The arc cylindrical ion deflection system of inductively coupled plasma mass spectrometry provided by the utility model can effectively separate the ion beam generated in ion source from neutral substance and photon, overcome the shortcomings of existing ion deflection system, realize two different deflection modes, and through the implementation of the two deflection modes, user can flexibly select according to application field and different measured samples.

This invention discloses a plasma heater, comprising: a power supply system for converting mains power into controllable high-voltage direct current; and a multiphase discharge device electrically connected to the power supply system for generating a plasma jet. The power supply system includes a resonant inverter circuit based on zero-voltage switching. The multiphase discharge device includes a central common-ground electrode and multiple high-voltage electrodes arranged around it, forming a needle-needle discharge structure. This invention maintains the plasma arc column boundary temperature above 2000K by controlling the discharge current above 48mA, effectively suppressing nitrogen oxide generation and reducing NO2 emission concentration to below 6.5ppm, thus exhibiting efficient, stable, and environmentally friendly heating performance.

The utility model discloses a liftable and adjustable electronic display screen relates to mechanical engineering technical field, including bottom plate, the top of bottom plate is provided with the support plate, two first sliding block's rear side is commonly provided with the connecting block, the inside slide coupling of connecting block right side has the second sliding block, the front side fixedly connected with first connecting plate of second sliding block, first connecting plate is fixedly connected with first limit post one side near arc column, every arc column's side end all is set up with a plurality of card slot, the rear side fixedly connected with third sliding block of second sliding block, the outside of limit rod is provided with the spring. Mechanism adopts mechanical drive principle, improves traditional liftable and adjustable electronic display screen, utilizes additional structure to improve traditional liftable and adjustable electronic display screen and promotes the viewing comfort of personnel, utilizes the angle of screen of adjusting mechanism and adjusts, prevents causing the eye fatigue of personnel, neck and back pain.

This invention provides an adaptive adjustment protection device for power distribution cable joints, relating to the field of cable joint technology. The adaptive adjustment protection device for power distribution cable joints includes: a connector; two joints connected to both ends of the connector, allowing two cables to pass through the connector from the two joints respectively; and multiple sealing airbags arranged circumferentially along the inner periphery of the joint, with the sealing airbags having an arc-shaped cylindrical structure. The outer arc surface of the sealing airbag is connected to the inner periphery of the joint, and the inner arc surfaces of the multiple sealing airbags form a circular area for abutting against the outer periphery of the cable. Because the sealing airbags themselves are elastic, in the initial state, their inner arc surfaces can tightly adhere to the cable surface, forming a basic annular seal, preventing external moisture, dust, etc., from entering the connector through the gap between the joint and the cable.

The application discloses a multi-stage anode magnetic control rotary arc high-voltage low-current plasma generating device, which comprises a cathode assembly, an anode assembly, a multi-path independent power supply system, a time sequence control system and a magnetic control rotary magnetic field system, wherein the anode assembly comprises a plurality of mutually insulated anode units; the magnetic control rotary magnetic field system is used for generating a rotary magnetic field acting on an electric arc, and the rotary magnetic field is configured to drive the electric arc to rotate between the cathode assembly and the anode units so as to expand and homogenize a thermal field. The application adopts a cooperative configuration of the cathode assembly and the multi-stage anode units, cooperates with the multi-path independent power supply system and the time sequence control system, realizes step-by-step controlled transfer of the electric arc between the anode units, makes working voltage increased to 2000V-6000V, and meanwhile, working current can be adjusted in a range of 100A-1000A according to requirements; in addition, the rotary motion of the electric arc makes energy uniformly distributed in a time average in the whole electrode gap space instead of being concentrated in an elongated static arc column, so that the thermal field homogeneity is greatly improved.

The utility model discloses a material transfer trolley, including the frame, the inside of frame evenly distributed has a plurality of arc columns, every arc column is through the support pivot of both ends and is connected with the frame rotation, every arc column's top surface is provided with the end face isosceles triangle type's three prism, forms V type groove between two adjacent three prisms, the bottom surface of arc column is horizontal plane structure, be used for arc column locking positioning's positioning locking assembly between frame and arc column design locking positioning's positioning locking assembly, the utility model discloses a plurality of rotatable arc columns on the frame, when all arc column top three prisms are upward, every adjacent three prisms form V type groove, can conveniently place coiled material through V type groove stability, avoid coiled material transfer when rolling down, also can rotate arc column's bottom plane to be upward, form a horizontal flat placement plane, can be applicable to the transfer bagged material or the material of surface flatness, can flexibly switch according to different material.

The utility model provides arc cylindrical steel plate bending device belongs to steel plate bending device technical field, including four detachable temporary fixed board, be located on the longitudinal position adjusting assembly of detachable temporary fixed board, longitudinal position adjusting assembly includes: be located between two detachable temporary fixed board of vertical direction on the riser, through screwing in the screw rod no. 1 of riser one side outer wall central position department, the moving plate of rotation in screw rod no. 1 end, be located on the transverse bending assembly of moving plate, transverse bending assembly includes: through screwing in the screw rod no. 2 of moving plate one side outer wall central position department, the utility model discloses a pushing pressure pressure roller along the rotation of preburied straight steel plate from inside to outside, can make preburied straight steel plate gradually stick to the arc surface of concrete column after pressure deformation, guarantee sufficient close, overall bending device simple structure, convenient operation.

This utility model discloses a retractor for neurosurgical clinical use, relating to the technical field of clinical instruments. The utility model includes a linkage block; two symmetrically arranged rotating cranks are located on the left and right sides of the linkage block, with abutting retractor plates fixed to the lower ends of the two cranks. A vertical rod is fixed to the upper surface of the linkage block, and a pull ring plate is sleeved on the vertical rod. Two symmetrically arranged pull ropes are fixed to the lower surface of the pull ring plate, with connecting blocks fixed to the other ends of each pull rope and fixed to the rotating cranks. A vertical plate is fixed to the lower part of the side wall of the linkage block, and arc columns are fixed to the left and right ends of the vertical plate. Arc rods are provided at positions opposite to the arc columns on the two rotating cranks. Springs sleeved on the arc rods are fixed to the sides of the limiting plate. This utility model achieves rapid and synchronous expansion of the two rotating cranks by moving the pull ring plate upwards, allowing for easy one-handed operation. Simultaneously, the springs allow for quick control of the retractor's reset, facilitating subsequent operations.

The utility model relates to composite pillow core technical field, especially 3D printing and memory cotton composite pillow core, including open hole memory cotton layer, the inside of open hole memory cotton layer is provided with the openwork frame that unites its inside, the bottom surface fixedly connected with a plurality of arc columns of openwork frame, the bottom surface of openwork frame is provided with the bottom support cotton, the both sides of bottom support cotton are fixedly connected with the elastic band respectively, the upper surface of bottom support cotton is equipped with a plurality of arc grooves, the arc column is inserted in the inside of arc groove, openwork frame and open hole memory cotton layer realize the primary positioning through the cooperation of dovetail strip and dovetail groove, and then the insertion and fixation of arc column and arc groove are combined, form the connection structure of double firm, need not to rely on adhesive, both avoid the health hidden danger that chemical substance possibly brings about, can ensure that openwork frame and open hole memory cotton layer are not prone to relative displacement in long -term use, and the connection stability is far more than traditional simple splicing mode.