49results about How to "Meet the weight" patented technology

A minisize distribution controlling system for satellite includes: the system attempering and controlling circuit, the 1553B bus interface circuit, the simulation quantity telemetering circuit, the digital quantity telemetering circuit, and the switch dictate outputting circuit. The invention can achieve the independent online monitoring of the satellite system with higher reliability and stability, brings the design idea and achieving method of data collection and processing based on FPGA technology.

The invention discloses a novel folding wing. The novel folding wing is overall divided into an inner segment, a middle segment and an outer segment. Folding positions comprise a 90-degree position and a 180-degree position. A folding manner is simple, easy to implement and high in efficiency. A hinge four-rod mechanism is selected as a body of a driving mechanism, and meanwhile a hydraulic actuator cylinder is selected as a power source. On the aspect of materials, high-strength alloy hardened and tempered steel is selected as materials of shaft pins, and strength titanium alloy materials are selected as materials of connecting rod structures and lug sheets. Rotating and locking structures are arranged on upper flanges and lower flanges of an upper beam and a rear beam, and it is guaranteed that unlocking and locking are reliably achieved. In the design process of the novel folding wing, the size is determined by meeting certain strength requirements.

The invention discloses an electric automobile charger. An uncontrolled rectifier and a BUCK type PFC two-stage structure are adopted in a main circuit, the charger is of a two-channel parallel structure, the power level of a convertor is improved, the heat distribution of the system is improved, the reliability of the system is improved, the service life of the system is prolonged, power factors of the system are greatly improved, and the power factors reach 0.998 in the stable status. A ZCS resonance circuit is adopted in the charger, soft switching of a switching element is achieved by controlling the matching of the communicating time of a Q1 and a Q4 and the resonant periods of a Cr and an Lr, and therefore the efficiency of the convertor is greatly improved. A switching tube Q2 and a switching tube Q3, and a switching tube Q5 and a switching tube Q6 form two bridge arms of an inverter circuit respectively, full-control type inversion is carried out by controlling communication signals of the switching tubes, and a single-phase alternating-current portable power source is provided. The requirements of the automobile charger for being small in size, light in weight and low in cost are met through the effective reuse of hardware.

The invention discloses a production method of a multilayered structure under-car carpet acoustic shock absorption pad and belongs to the technical field of production of car parts. The production method comprises a raw material laying step, a steaming hot press molding step, a cooling forming step and a water jet cutter cutting step. The multilayered structure under-car carpet acoustic shock absorption pad produced by the production method can replace a heavy coating composite polyurethane foaming product produced by the traditional technology; compared with the heavy coating composite polyurethane foaming product produced by the traditional technology, the multilayered structure under-car carpet acoustic shock absorption pad has the advantages of environment protection, no odors and harmful substances, recycling, light weight, simple manufacturing process and higher dissipation in the acoustic aspect; while the design requirement of light weight of the whole car is met, selectivity is realized; in the material machining process, steaming hot press molding, tool cooling forming and water jet cutter cutting are adopted, the process is stable, and the safety and accuracy of operation are guaranteed; the operation efficiency is improved; excess materials of the product are fewer and recycled so that the manufacturing cost is saved; and no harmful substances and waste materials are generated in the whole product production process.

Disclosed is a negative compensation type large-target-surface medium-wave refrigeration infrared continuous zooming optical system. The optical system adopts secondary imaging and continuous zoomingdesign, and optical and lens design to obtain a combination of only 10 lenses, has relatively high transmittance, improves system sensitivity, and effectively controls the total length of the opticalsystem; by adopting a cylindrical cam to control motion of a zoom group and a compensation group, the advantage of a simple compensation structure is achieved; a field diaphragm structure is added, sothat influence of stray light on the imaging of the system is reduced, and the signal-to-noise ratio of the system is improved; cold diaphragm is adopted, and the realization efficiency is 100%, so that the light beam energy loss is reduced, and the system sensitivity is improved; the optical axis direction of the system is changed through two plane reflecting mirrors, so that the total length ofthe optical system is shortened effectively; and the continuous zooming optical system has the advantages of high imaging quality, short optical total length, simple zoom and compensation structure,high signal-to-noise ratio and high sensitivity, and fills up the blank of a continuous zoom optical system applicable to a 1280*1024 large target surface and medium-wave refrigeration type detector in China.

The invention provides a nitrine type high-molecular sensitized high-energy ablator which comprises the components by weight part: 5 to 80 parts of nitrine type material, 5 to 70 parts of high energy material and 5 to 15 parts of additive. The invention also provides a preparation method of the ablator and a target belt made from the ablator. According to the invention, an ablative material layer made via the method utilizes the viscous characteristic of the nitrine type high-molecular sensitized high-energy material, integrates the energy of the nitrine type material and the high energy material, and has the advantages of low ablative threshold value, high energy content and viscosity; and the cohesive property between a substrate and the ablator meets the use requirement, and the utilization rate of the laser energy can also meet the use requirement.

The invention relates to a cable trench structure laid on a power transmission line, in particular to a power transmission line recessed assembled cable trench and a laying method thereof. The cable trench is characterized in that the cable trench comprises plural trench bodies connected end to end successively; each trench body has a recessed cross section and comprises a bottom plate and two side plates; trench cable bearer pre-embedded members are pre-embedded into the inner sides of the two side plates and are vertical to the bottom plate; the front end face of each trench body is provided with a tenon, the rear end face of each trench body is provided with a mortise, the tenon is connected with the mortise on the rear end face of a previous trench body and the mortise is connected with the tenon on the front end face of a following trench body so that an end-to-end structure is formed; water-swellable rubber bars are pressed in gaps in the mortise joints; each trench body is fixedly connected with the previous and following trench bodies through plural single-head bolts. The cable trench decreases the work amount of construction, shortens a construction period, increases the efficiency of long-distance transportation, reduces construction cost, and is expanded in application range in transmission line projects.

The invention discloses a hard alloy product, a preparation method thereof and a device for preparing the hard alloy product, and belongs to the field of powder metallurgy. The preparation method of the hard alloy product includes the steps that hard alloy powder and an adhesion agent are mixed and feedstock is prepared; the feedstock is stored in an extruding machine so that the feedstock can be extruded out from a nozzle of a numerical control machine tool which is connected with the extruding machine; and the numerical control machine tool controls the extruded feedstock to be layered-deposited, and the hard alloy product is prepared. The device for preparing the hard alloy product comprises the extruding machine and the numerical control machine tool; the numerical control machine tool comprises a heatable nozzle, the nozzle is the executive component of the numerical control machine tool, and connected with a driving component of the numerical control machine tool; and a material outlet of the extruding machine is connected with the nozzle through a material pipe. According to the hard alloy product, the preparation method thereof and the device for preparing the hard alloy product, a die does not need to be manufactured, complex shapes can be formed, the density of each part of the product is even, deformation is small, and the comprehensive property is high.

The invention discloses a dual-purpose plate used for drying and air drying of mangrove samples, and is used for the field of drying and air drying devices. The plate comprises a square plate body provided with surrounding edges and a plurality of baffle boards arranged inside the square plate body, wherein the baffle boards comprise horizontal baffle boards and vertical baffle boards which are mutually perpendicular; the horizontal baffle boards and the vertical baffle boards are arranged in a crossing manner and separate the square plate body into a plurality of spaces; a plurality of mutually buckled inserting grooves are formed in an upper side of each horizontal baffle board and a lower side of each vertical baffle board in the length direction. According to the invention, the size of the plate is in fit with an integrated square plate body in the size of a drying oven; the square plate body is separated by the horizontal baffle boards and the vertical baffle boards into the plurality of spaces for placing the mangrove samples; sizes of the spaces can be changed by adjusting quantity and/or positions of the horizontal baffle boards or the vertical baffle boards to meet requirements of different sizes and weights of the mangrove samples and avoid the assembly of all kinds square plate bodies with different sizes; therefore, the confined space of the drying oven is better utilized, and smooth progress of drying and air-drying operations is facilitated.

The invention relates to a light high-strength photovoltaic module and a preparation method thereof. The light high-strength photovoltaic module sequentially comprises front plate glass, a first packaging adhesive film, a battery string, a second packaging adhesive film, a polymer enhancement layer and a photovoltaic back plate from top to bottom, the front plate glass, the first packaging adhesive film, the battery string, the second packaging adhesive film, the polymer enhancement layer and the photovoltaic back plate are subjected to high-temperature and high-pressure vacuum hot press molding to form the photovoltaic module; and the polymer enhancement layer is used for enhancing the strength of the photovoltaic module. By reducing the thickness of the front plate glass of the photovoltaic module and adding the light high-strength polymer enhancement layer in the photovoltaic module structure, the weight of the photovoltaic module is reduced, and meanwhile, the photovoltaic module has very high strength, so that the certification requirements of wind load, snow load and hail in the IEC standard can be well met.

The invention provides a low-cost autonomous navigation device and a navigation method for communication assisted positioning. The low-cost autonomous navigation device comprises mobile autonomous navigation equipment and ground communication base station equipment. The mobile autonomous navigation equipment comprises an autonomous navigation module, a communication auxiliary positioning module and a power supply module, and the autonomous navigation module comprises a gyroscope, an accelerometer, a magnetometer, a barometric altimeter, a microprocessor and a peripheral circuit; the communication auxiliary positioning module comprises a signal encoder, a power amplifier, a signal demodulator, a signal synchronization and timer, a radio station antenna and a communication serial port. The mobile autonomous navigation equipment is powered on before the carrier is launched, receives binding data of the ground communication base station device, and completes functions of multi-sensor dataacquisition, communication auxiliary positioning information calculation, multi-source information fusion filtering navigation and the like after the carrier is launched. The mobile autonomous navigation equipment adopts a low-cost and light design method, and can adapt to autonomous navigation and precise guidance combat tasks under the condition of satellite navigation signal loss in a modern war environment.

The invention relates to a prefabricated lane board. The prefabricated lane board comprises a prefabricated lane plate body, a steel reinforcement framework and a joint area cast-in-place material. Aplurality of protrusions are arranged on the edges of the two sides of each prefabricated lane plate body respectively, a steel reinforcement framework extending out of the prefabricated lane plate body is arranged between every two adjacent protrusions, the adjacent prefabricated lane plate bodies are arranged oppositely at intervals, and the adjacent prefabricated lane plate bodies are integrated through the steel reinforcement frameworks and joint area cast-in-place materials. The joint area cast-in-place material is made of a fiber cement-based composite material, on the premise that the requirements for strength, waterproofness and the like are met, the joint area cast-in-place material can be dismantled when needing to be dismantled, and the prefabricated lane plate is recycled. A force transmission path is clear, factory-like and standardized production is easy, and on-site assembly is convenient and rapid; the prefabricated lane board has the characteristics of the small on-site pouring amount, high construction efficiency, convenience in later cyclic utilization, replacement and renewal and the like.

The invention provides a special lifting device for a shaft roller, which comprises two rails, a hoisting frame and lifting device parts, wherein the hoisting frame consists of two moving mechanisms and a cross beam; the lifting device parts consist of electric hoists and hoisting tools; and the hoisting frame consists of hollow steel tubes. The special lifting device has the benefits that the special lifting device is simple in structure, simple to operate, small in floor area, and flexible in hoisting tool angle.

The invention relates to the technical field of motor soft starter manufacturing, and especially relates to a dedicated thyristor module for soft starters. The thyristor module comprises two thyristors and two radiators, and the two thyristors are reversely connected in parallel and clamped between the two radiators. The weight, size and cost of the radiators are reduced. The radiators achieve three functions, namely, a heat conduction function, a radiating function, and a function of sealing the thyristors and isolating the thyristors from air to prevent oxidation and function failure caused thereby. The radiators are directly and externally connected with a power terminal and a control terminal. The thermal resistance of the thyristors is reduced, the reliability of products is improved, the size of soft starters is reduced, and the cost of products is lowered.

The invention relates to a material conveying device, in particular to a tubular bag type fluidized bed device for a bulk powder material tank truck, which overcomes the shortcomings of the conventional large-chute type fluidized bed device. The tubular bag type fluidized bed device comprises a chute type fluidized bed consisting of tilting fluidized bed surfaces, wherein a master air chamber is arranged below the tilting fluidized bed surfaces; each tilting fluidized bed surface comprises a fluidized bed plane, a fluidized bed slope and a lateral bevel board which are laid by fluidized bed components; the fluidized bed component comprises a hollow tube bag type air chamber which is formed by connecting an air permeation layer and an enclosed later and provided with a corrugated lining plate; and one end of the hollow tube bag type air chamber of each fluidized bed component is provided with a blast pipe communicated with the master air chamber and the other end of the hollow tube bag type air chamber is sealed by a trim strip. The fluidized bed device fully utilizes the tank space, reduces the center of gravity for car loaded, increases the load, reduces the tank capacity, increases the effective load volume; increases the fluidization area, facilitates the fluidization of the bulk materials, increases the unloading speed, and has the characteristics of convenience and safety of operation, good working condition and the like.

The invention relates to a production method of an automobile trunk carpet, comprising the following steps: (1) spraying glue and laminating: placing a terylene blanket in a positioning and laminating tooling, positioning the blanket, evenly spraying glue on one side of the positioned terylene blanket, and laminating the terylene blanket with one side of a polypropylene hollow board to obtain a semi-finished product, wherein the glue spraying amount is 90-110g/m<2>; (2) evenly spraying glue on the other side of the polypropylene hollow board of the semi-finished product, and the sticking a non-woven cloth on the other side of the polypropylene hollow board after glue spraying, wherein the glue spraying amount is 90-110g/m<2>; (3) molding and punching: placing the semi-finished product after the non-woven cloth is stuck on in a die for molding and punching, wherein the molding pressure is 7-9mpa and the molding time is 55-65s; (4) covering: covering the rims of the semi-finished product after molding and punching by covering clothes; and (5) installing and inspecting accessories: adhering cotton pads and installing stay cords on the covered semi-finished product to obtain a finished product. The method in the invention has saved production cost, is environment-friendly and has no pollution.

A new mailing envelope for use in mailing of a rigid module that is embedded in a plastic or non-plastic substrate.

The invention discloses a mounting structure of a quick dismounting rear goods frame of a motorcycle. The quick dismounting rear goods frame is arranged on a decoration rear goods frame and provided with front vertical pipes which are arranged symmetrically leftward and rightward and rear vertical pipes which are arranged symmetrically leftward and rightward. Rivets are mounted on the opposite faces of the lower ends of the two rear vertical pipes and clamped in clamping openings formed in supporting lugs obliquely from front to back. The supporting lugs are fixed at the bottom of the rear end of the decoration rear goods frame. Fixing pins are oppositely arranged at the lower ends of the front vertical pipes of the left and right sides in a penetrating mode and penetrate through locking holes in a locking plate, and the locking plate is fixed to the bottom of the front end of the decoration rear goods frame or a motorcycle frame. Pin bodies, located between the front vertical pipes and the locking plate, of the fixing pins are sleeved with returning springs. Locking pins vertically penetrate through the end head parts of the fixing pins. The design is reasonable, implement is easy, disassembling and assembling operation is easy, convenient and labor-saving, the requirements that a motorcycle temporarily carries goods with the large size and weight can be met, reliability is good, and the mounting structure is suitable for various types of motorcycles.

The invention provides a compact type full-superconducting rotary treatment device which comprises a compact type superconducting rotary rack, the compact type superconducting rotary rack comprises a large-ring cylinder component, a superconducting magnet beam transmission system is installed at the upper end of the large-ring cylinder component, a CBCT graphic image system is installed at the lower end of the large-ring cylinder component, and a treatment head system is installed in the large-ring cylinder component. The superconducting magnet beam transmission system is connected with the compact superconducting cyclotron, the large ring cylinder part comprises a supporting ring and a driving gear, the supporting ring is arranged on the outer side of the driving gear, the rear end of the large ring cylinder part is sequentially connected with an oblique beam and the small ring part, and the supporting ring and the small ring part are both connected with the small ring support through friction contact. A large ring support is arranged at the lower part of the small ring support; the treatment device provided by the invention can meet the design requirement of compact structure of the proton treatment center, meets the treatment of tumor cells in different directions and at different depths, and enables the magnet to achieve higher magnetic field intensity.

The invention provides an expandable thin-film light shield, and the light shield can meet the requirements of satellite-borne large loads for large-scale, light-weight and large-storage-ratio expandable thin-film light shields. The light shield comprises an expandable framework, a shading thin film and a pressing and releasing device, the expandable framework is of a beveled hexagonal prism structure as a whole and has the functions of folding and unfolding in the height direction. The shading film is of a beveled hexagonal prism structure and covers the outer surface of the expandable framework. When the expandable framework is folded or unfolded in the height direction, the shading film is driven to be unfolded or folded. The linkage device is used for synchronously unfolding or foldingthe large connecting rod unfolding mechanism and the small connecting rod unfolding mechanism; and the compressing and releasing device is used for compressing the expandable framework when the expandable framework is in the folded state, so that the expandable framework is kept in the folded state.

The invention discloses a double-section coaxial toothed cathode pulse plasma thruster, and belongs to the technical field of micro satellite aerospace propulsion. The product mainly comprises a first-stage cathode, a first-stage anode, an insulating coating layer, a second-stage cathode, a second-stage anode, a propellant, an insulating outer shell, an insulating base, a supply spring and a spark plug. The inner surface of the primary cathode is provided with sharp teeth, so that the primary cathode is easier to discharge compared with a common cylindrical inner surface by utilizing a point discharge principle, and the system safety is improved; and the toothed cathode is used, so that the electric field and the current between the electrodes are more uniform, the non-uniform ablation of the propellant is improved, the indentation of the end face of the solid propellant in the continuous working process is reduced, the reliability is remarkably improved, and the working life is prolonged. The secondary cathode is in the shape of an expanded spray pipe, so that charged particles and neutral gas generated by discharging between the primary electrodes are accelerated more sufficiently, and the primary electrodes and the secondary electrodes are charged by respective independent capacitors, so that the reasonability of energy distribution is improved, and the overall acceleration efficiency of the thruster is improved.

The invention discloses a miniaturized low-loss large-spacing millimeter wave power division network which comprises a shell. The shell is provided with a first-stage one-to-two power division module, a second-stage one-to-two power division module, a waveguide microstrip converter, a waveguide coaxial converter, a first-stage waveguide transmission line, a second-stage waveguide transmission line, a third-stage waveguide transmission line and a connector. The first end of the first-stage waveguide transmission line is a total port; the first-stage waveguide transmission line is connected with a total port micro-strip of the first-stage one-to-two power division module; two split micro-strips of the first-stage one-to-two power division module are respectively connected to the first end of the second-stage waveguide transmission line; the second end of the second-stage waveguide transmission line is connected with a total port micro-strip of the second-stage one-to-two power division module; two split micro-strips of the second-stage one-to-two power division module are respectively connected to the first end of a third-stage waveguide transmission line through a waveguide micro-strip converter; and the second end of the third-stage waveguide transmission line is a split port. The millimeter wave power division network has the advantages of small size, light weight and low loss.

The invention provides a high-temperature-resisting piston connecting device for a hydraulic cylinder. The high-temperature-resisting piston connecting device mainly comprises a cylinder barrel, a piston rod, a piston, an invar steel sheet, a sealing ring, a fastening nut and a positioning screw, wherein the sealing ring is arranged on the piston; the invar steel sheet is arranged on the cavity wall of the piston. The high-temperature-resisting piston connecting device is characterized in that thermal expansion deformation of the piston under high-temperature working conditions is inhibited by using a bimetallic effect of the piston and the invar steel sheet; according to the high-temperature-resisting piston connecting device disclosed by the invention, triple fixing of the piston is realized by the fastening nut, a washer and the positioning screw; weight reduction and timely heat dissipation of the piston are realized by using a hollow-type aluminum alloy material; the thermal expansion deformation of the piston is inhibited by the invar steel sheet on the cavity wall of the piston; high-temperature-resisting sealing of the piston is enhanced by the fluorine rubber sealing ring with a rectangular section.

The invention discloses a single-body three-lock-hole electric control lock. A lock hole groove is formed in each of three faces of the wall of a lock shell, three pairs of shaft rods distributed in the shape like the Chinese character 'pin' are arranged in the lock shell, a pair of spring bolts, lock hooks and torsion springs are installed on each pair of shaft rods, and an opening of each spring bolt faces one lock hole groove; an electromagnet is arranged among the three pairs of shaft rods, and the end of an armature of the electromagnet is a double-sided flat groove, is connected with the two lock hooks and is connected with the third lock hook through one lock hook handle; lock catches are inserted to jack the spring bolts to rotate and slide into the lock hooks, the lock hooks hook the spring bolts, and locking is completed; during unlocking, the electromagnet is powered on, the electromagnet attracts the armature to pull the two connected lock hooks, the lock hooks rotate around the shaft rods to be opened, and meanwhile the third lock hook is driven to rotate around the shaft rods to be opened; and the spring bolts are released and reset under the action of the torsion springs, the lock catches pop up, and unlocking is completed; According to the single-body three-lock-hole electric control lock, one electromagnet is adopted to control the three spring bolts, the size is small, the weight is light, power consumption is low, and action consistency is guaranteed.

The invention provides a bearing assembly for a wind driven generator, which comprises a rotating shaft connected with a generator rotor, a bearing seat connected with a generator base, and a front bearing part and a rear bearing part which are arranged between the rotating shaft and the bearing seat and are sliding bearings, the sliding bearing comprises a bearing body and a plurality of radial tiles, and the radial tiles are fixedly installed on the inner side of the bearing body and arranged in the circumferential direction of the rotating shaft at intervals; the inner side surface of the radial tile is a radial bearing surface for bearing the radial load of the rotating shaft, and the radial bearing surface is provided with a first wear-resistant insulating layer. The device has the advantages of good shaft current insulation effect, convenience in operation and maintenance and the like.

The invention provides an implantable medical device shell structure and an implantable medical device. The shell structure at least comprises a first shell made of a first material and a second shellmade of a second material and fixedly connected with the first shell to form a closed or semi-closed shell, wherein the first material and the second material are both materials capable of meeting biocompatibility, and the resistivity of the first material is smaller than that of the second material. According to the shell structure, after the medical device is placed and implanted into the humanbody, the charging efficiency is high when the medical device placed in the shell is charged through in-vitro charging equipment; and when in-vitro operation equipment is used for communicating withthe in-vivo medical device, the communication sensitivity is high.