36results about How to "Double the efficiency" patented technology

The invention belongs to the field of helicopter design, and particularly relates to a composite blade section property calculation method. Blade section properties are the most basic original parameters for helicopter rotor dynamic calculation. Accuracy of the blade section properties is a premise for judging helicopter rotor dynamic properties and vital to rotor dynamic design. According to the composite blade section property calculation method, data files of sections of blades are built according to blade structures, wing profile theory contour data and material data, rigidity is calculated by a modulus weighting method according to anisotropic performances of composites, and mass is calculated by a finite element concept. Accurate basic data are provided for blade dynamic analysis and design, the blade section properties can be rapidly and accurately calculated, optimal design of the blades can be rapidly finished, and rotor system dynamic design technology is broken through.

The invention relates to the field of radiological inspection of nuclear power cast steel members and discloses a multi-station inspection stand designed aiming at radiation sources of iridium 192, cobalt 60, thulium 170 and the like. The inspection table uses the radiation sources as the center and performs radiography inspection on a plurality of cast steel members, each cast steel member can move forwards and backwards in radial mode relative to the center of the radiation sources and can rotate surrounding axial leads of the cast steel members, thereby facilitating photo distribution. The radiography inspection stand has the advantages of improving utilization rate of the radiation sources, reducing opening times of the radiation sources and radiation of gamma rays, reducing working intensity of operators, greatly improving working efficiency, stabilizing shooting quality, and ensuring a radiographic test (RT) process to be more convenient and reliable.

The invention discloses a double-cylinder eccentric rotary pump. The double-cylinder eccentric rotary pump comprises a first cylinder body and a second cylinder body. The first cylinder body and the second cylinder body are each internally provided with a cavity. The outer end surface of the first cylinder body and the outer end surface of the second cylinder body are each provided with inlets and outlets. The cavity of the first cylinder body and the cavity of the second cylinder body are internally provided with a first rotor and a second rotor correspondingly. Working cavities are formed between the side surface of the first rotor and the cavity of the first cylinder body as well as between the side surface of the second rotor and the cavity of the second cylinder body correspondingly. The first rotor and the second rotor are installed on a first eccentric part and a second eccentric part of the same crankshaft in a sleeving mode correspondingly so that the working cavities can be increased or decreased and the inlets can communicate with the outlets. The first rotor is in clearance fit with the crankshaft, and the second rotor is in clearance fit with the crankshaft. Fixed gears are fixed to the first cylinder body and the second cylinder body. Teeth or gear rings matched with the fixed gears are arranged in the middle of the first rotor and the middle of the second rotor. The double-cylinder eccentric rotary pump is high in efficiency, user-friendly, convenient to transport, easy to maintain and capable of achieving real-time monitoring and stepless speed adjusting.

The invention provides a low-temperature and high-speed floating ring sealing test device for a rocket engine, which includes a casing, which includes a casing I, a casing II and a casing III; a stepped main shaft arranged inside the casing; The front floating ring seal assembly and the rear floating ring seal assembly; the front floating ring seal assembly and the rear floating ring seal assembly form a test chamber in the housing II. The low-temperature and high-speed floating ring sealing test device for a rocket engine according to the present invention has strong functionality, good compatibility, good performance at low temperature and high speed, and can carry out various low-temperature sealing tests of floating rings, which can verify the integrity of the floating ring assembly. The sealing performance can also be used to assess the rationality of the floating ring structure.

The invention discloses a one-stroke intermittent power supply motor, wherein the magnetic poles on both ends of electromagnets are simultaneously reciprocatingly stressed in forward direction. The motor comprises a frame, a crankshaft, a flywheel, at least one group of magnetic driving unit and at least one group of corresponding control unit, wherein the crankshaft, the flywheel, the magnetic driving unit and the corresponding control unit are arranged on the frame. The magnetic driving unit comprises a crank throw arranged on the crankshaft, a connecting rod, a telescopic shaft, two slides,N+ electromagnets (moving magnets) and N++1 permanent magnets (fixed magnets), wherein N+ is a positive integer. N++1 permanent magnets are homopolar, are opposite to each other in sequence, and arealternately arranged with N+ electromagnets. The control unit comprises a current rotating connector and a current intermittent commutator. The on / off strokes of two commutator segments and brushes ofthe current intermittent commutator respectively account for 1 / 4 of the circumference, so that the alternating of direct current direction is twice per cycle, and the electromagnets are powered on inthe start 1 / 2 stroke and are powered off in the other 1 / 2 stroke. The magnetic poles on both ends of the electromagnets and an iron core with a power-off end are forced to complete one stroke in a relay, and complete the other stroke the same. The telescopic shaft acts on the connecting rod, and the crankshaft rotates to output power.

The invention relates to an efficient battery ring-lacking steel shell ring supplementing device which comprises a base arranged on a workbench. Ring fixing devices and telescopic rods are sequentially arranged on the base from front to back. At least two sets of the ring fixing devices and the telescopic rods are arranged. A fixing board is arranged at the upper ends of the telescopic rods and correspondingly provided with at least two steel shell clamping sleeves coaxial with the ring fixing devices in the perpendicular direction. At least two sliding sleeves matched with the telescopic rods are correspondingly arranged on the base. The sliding sleeves penetrate the base and the workbench. The telescopic rods penetrate the corresponding sliding sleeves and are connected with at least two correspondingly-arranged belts through connecting blocks at the lower ends of the telescopic rods. The other end of each of the at least two belts is fixed to a pedal. The at least two correspondingly-arranged connecting blocks are connected with the workbench through springs. By the adoption of the efficient battery ring-lacking steel shell ring supplementing device, the problems that waste materials are generated due to battery steel shell ring lack, the ring supplementing process only can be operated singly, efficiency is low, alignment is not easy, and the quality is difficult to guarantee are solved.

The invention belongs to the field of helicopter design, and particularly relates to a composite blade section property calculation method. Blade section properties are the most basic original parameters for helicopter rotor dynamic calculation. Accuracy of the blade section properties is a premise for judging helicopter rotor dynamic properties and vital to rotor dynamic design. According to the composite blade section property calculation method, data files of sections of blades are built according to blade structures, wing profile theory contour data and material data, rigidity is calculated by a modulus weighting method according to anisotropic performances of composites, and mass is calculated by a finite element concept. Accurate basic data are provided for blade dynamic analysis and design, the blade section properties can be rapidly and accurately calculated, optimal design of the blades can be rapidly finished, and rotor system dynamic design technology is broken through.

The invention discloses an assembly line rotary environment-friendly automatic welding equipment, which relates to the technical field of metal guardrail processing. The equipment includes a frame, and the top surface and the inner bottom surface of the frame are respectively paved with a first fixed plate, a third fixed plate and a second fixed plate; The circular rotation driving device of the position, the support and positioning device for the vertical fixation of the workpiece is installed in the middle of the top surface of the circular rotation driving device; The top surface of the fixed plate is equipped with a double-track traverse welding device; the inner bottom of the frame is equipped with a secondary reflow type welding fume purification device that works synchronously with the double-track traverse welding device; the outside of the frame is equipped with an operation control device. The invention is aimed at the combined welding of guardrail industry and other similar uprights and embedded base plates, can greatly improve production efficiency, and has the advantages of energy saving and environmental protection.

The invention provides an adjustable intelligent charging and discharging mechanism of a punch press. The adjustable intelligent charging and discharging mechanism is mounted at a charging position of a machine tool, and comprises a charging mechanism, a feeding mechanism, an X-axis left-and-right movement liner die set, and a Z-axis up-and-down movement liner die set, wherein the charging mechanism is mounted on one side of the machine tool; the feeding mechanism is erected on the charging mechanism, and the X-axis left-and-right movement liner die set, and the Z-axis up-and-down movement liner die set are mounted on the feeding mechanism. The adjustable intelligent charging and discharging mechanism of the punch press comprises the charging mechanism, the feeding mechanism, the X-axis left-and-right movement liner die set, and the Z-axis up-and-down movement liner die set, and through the X-axis left-and-right two-dimensional movement liner die set, and the Z-axis up-and-down two-dimensional movement liner die set, rapid and intelligent material taking can be realized. The adjustable intelligent charging and discharging mechanism is simple in structure and high in operating stability, the precision of a manipulator is high, and the consistency of products is notably improved; besides, normal time for charging and discharging needs to be four hours or above, and the normal processing time of the adjustable intelligent charging and discharging mechanism disclosed by the invention is within 2 hours, so that the efficiency is doubled.

The invention relates to a double-thread winding high-voltage wire package production line. The production line comprises a feeding device, a winding device, a loading device and a handling device; the loading device is one, the loading device is two, and the loading devices are respectively Installed on the left and right sides of the feeding device, one or more winding devices are installed in sequence between the feeding device and the loading device. The device is connected, the feeding device and the winding device and the loading device on the left side together form the left thread, and the feeding device and the winding device and the loading device on the right side together constitute the right thread. A double-thread winding high-voltage wire wrap production line is designed, with bidirectional conveying and synchronous wrapping production, which greatly improves the production effect. For this purpose, a feeding device is designed to feed in batches, and at the same time, it can meet the automatic feeding of left thread and right thread. , to achieve double the efficiency of the previous wrapping production line.

The invention discloses a full-automatic 4U tube bridge connection device and making method, which is characterized by the following: setting rotary table (2) on the working machine table(1); distributing 36 mechanic head fixtures (3) on the rotary table; distributing primary open-up arrangement (48), primary upper pipe device (41), secondary upper device (42), slice pipe location device (43), primary burning tack device (44), primary bridge connection device (45), turn-up device (46), primary bridge, secondary location device (47), secondary open-up device (49), burning tack device (50), secondary bridge connection device (51) and lower-in device (52) around the working machine table(1) and rotary table (2) sequentially .