61results about How to "Improve mechanical structure strength" patented technology

A solidifying agent for the used sludge of drilling well is proportionally prepared from powdered thioaluminate cement clinker, semi-hydrated gypsum powder, calcium lime, and polyacrylamide through grinding. Its advantages are short solidifying time, low cost and no secondary pollution.

The invention provides a preparation process of a sapphire photonic crystal fiber grating ultra-high temperature distributed sensor. The preparation process comprises a first step of producing a sapphire special material rod body and a sleeve by virtue of a sapphire special material tube rod preparation process and technology; a second step of producing a sapphire photonic crystal special opticalfiber based on the sapphire special material rod body and the sleeve provided in the first step through the photonic crystal special optical fiber preparation process and technology, a third step of producing a distributed fiber grating sensing unit in the sapphire photonic crystal special optical fiber based on the sapphire photonic crystal special optical fiber provided in the second step through ultra-fast femtosecond laser engraving fiber grating preparation process and technology, and a fourth step of producing the sapphire photonic crystal fiber grating ultra-high temperature distributedsensor by packing and protecting the sapphire photonic crystal special optical fiber with the distributed fiber grating sensing unit provided in the third step through high temperature packaging based on a ceramic casing pipe with boron carbide high-temperature structure and the high-temperature sensor packaging technology based on sapphire capillary tubes.

The invention relates to a UAV three-degree-of-freedom inflight autonomous refueling device, which is used for simulating simulated refueling emulation of two eight-rotor UAV in a UAV inflight refueling semi-physical emulation platform. The implementation method comprises the steps that: a refueling aircraft obtains an image of a receiver aircraft, utilizes an internal visual processing program of Intel NUC microcomputer (hereinafter referred to as NUC) modules installed through the UAVs to solve a position and attitude relationship between the two UAVs, and then transmits the position and attitude relationship to a SCM module in a refueling rod device through a communication protocol; and the SCM module completes information output, driving and instruction execution, and finally makes a refueling rod face towards the receiver aircraft at correct angle and attitude, thereby offering support for final docking.

The invention discloses a high-power high-reliability six-phase permanent magnet fault-tolerant hub motor used for an electric armored vehicle. The high-power high-reliability six-phase permanent magnet fault-tolerant hub motor comprises a stator assembly, a rotor assembly, a rotary shaft, a bearing, a machine shell, front back end covers, and a position sensor; the six-phase windings in the stator assembly adopt a fractional-slot and concentrated single-layer winding structure embedded with partition teeth, so that an electrical fault-tolerant structure can be formed between the phase windings; meanwhile, by combination of the dimensional design of the stator toothed groove structure, the phase winding inductance of the electric motor is increased, the short circuit current is suppressedeffectively, and reliability and fault-tolerant performance of the hub motor are improved; the rotor assembly adopts an internal permanent magnet rotor structure, and the outer side of the rotor is wound with a carbon fiber protection sleeve, so that the mechanical structural strength of the rotor is improved; the stator winding adopts a monocrystal copper wire or silver wire, so that stator lossof the hub motor is lowered; the permanent magnet of the rotor assembly adopts eccentric design, and is subjected to circumferential or axial sectioning processing, so that the rotor loss of the hub motor is lowered effectively; a Z-shaped or spiral heat dissipation water path is formed in the machine shell, so that the heat dissipation capability of the hub motor is improved; and the hub motor has high fault isolation, anti-short-circuit and weak magnetic diffusion capability, so that the requirements of high reliability, high power and high rotary speed of the hub driving of the electric armored vehicle can be satisfied.

The invention discloses an orthogonal dual-polarized metal slot antenna array structure and an antenna array containing the structure, and solves the problem in the prior art that high-temperature welding formation is adopted to cause poor antenna precision, resulting in reducing the yield, limiting by the welded aluminum alloy material and reducing the mechanical strength of the antenna, or the assembly formation of spare parts is adopted, resulting in increasing the weight of the antenna, reducing the mechanical strength of the antenna and increasing the number of structural parts that are independent of electromagnetic properties, so as to narrow the scope of application. The antenna array structure comprises an antenna bottom plate, and a sub-structure unit mounted on the antenna bottom plate and interposed by horizontal radiating unit pieces and vertical radiating element pieces. The antenna array includes an antenna array structure. The antenna array structure and the antenna array have the advantages of simple structure, scientific and reasonable design and convenient use, and can effectively ensure the accuracy of the antenna to improve the production yield, effectively improve the mechanical structure strength, reduce the weight of the antenna, and ensure the electromagnetic performance of the antenna array to expand the applicable range.

The invention relates to the technical field of heat dissipation, and discloses a manufacturing process for a lightweight vapor chamber and the vapor chamber. The manufacturing process comprises: connecting a condensation layer to the side surface of a structural layer to obtain a composite strip; stamping the composite strip to obtain a bottom plate with a first sealing portion and a first heat conduction portion; stamping the composite strip to obtain a cover plate with a second sealing portion and a second heat conduction portion, forming a support portion on the second heat conduction portion, and enabling the support portion to abut against the second heat conduction portion or other parts of the vapor chamber; connecting a heat conduction member to the condensation layer of the cover plate; sealedly connecting the first sealing portion to the second sealing portion, forming a heat conduction cavity for containing the heat conduction member between the second heat conduction portion and the first heat conduction portion, and meanwhile, clamping the heat conduction member between the second heat conduction portion and the first heat conduction portion; injecting working liquid into the heat conduction cavity, and sealing the heat conduction cavity. The vapor chamber manufactured by the manufacturing process for the lightweight vapor chamber not only has enough structural strength, but also is light in weight.

The invention relates to a method for processing the inner surface of a solar-thermal power generation thermal storage device. A layer of graphene nanofilm is formed on the inner surface of a structural material forming the solar-thermal power generation thermal storage device, is 0.05-2mu m in thickness, and is formed with a mechanical method, a chemical method and a surface spraying method. The mechanical structural strength of the thermal storage device is improved, the wear resistance and the corrosion resistance of the thermal storage device are improved, the material cost and the processing cost are reduced, and the service life of the thermal storage device is prolonged.

The invention discloses a high-power high-reliability six-phase permanent magnet fault-tolerant hub motor used for an electric armored vehicle. The high-power high-reliability six-phase permanent magnet fault-tolerant hub motor comprises a stator assembly, a rotor assembly, a rotary shaft, a bearing, a machine shell, front back end covers, and a position sensor; the six-phase windings in the stator assembly adopt a fractional-slot and concentrated single-layer winding structure embedded with partition teeth, so that an electrical fault-tolerant structure can be formed between the phase windings; meanwhile, by combination of the dimensional design of the stator toothed groove structure, the phase winding inductance of the electric motor is increased, the short circuit current is suppressedeffectively, and reliability and fault-tolerant performance of the hub motor are improved; the rotor assembly adopts an internal permanent magnet rotor structure, and the outer side of the rotor is wound with a carbon fiber protection sleeve, so that the mechanical structural strength of the rotor is improved; the stator winding adopts a monocrystal copper wire or silver wire, so that stator lossof the hub motor is lowered; the permanent magnet of the rotor assembly adopts eccentric design, and is subjected to circumferential or axial sectioning processing, so that the rotor loss of the hub motor is lowered effectively; a Z-shaped or spiral heat dissipation water path is formed in the machine shell, so that the heat dissipation capability of the hub motor is improved; and the hub motor has high fault isolation, anti-short-circuit and weak magnetic diffusion capability, so that the requirements of high reliability, high power and high rotary speed of the hub driving of the electric armored vehicle can be satisfied.

The invention discloses a non-power bogie with axle boxes capable of measuring temperature and a flexible interconnection framework, and belongs to the field of rail vehicle non-power bogie devices. The non-power bogie comprises a wheel set device composed of wheels and axles, a transverse-longitudinal integrated flexible interconnection framework and four annular vibration reduction axle boxes. The damping requirement for the whole framework is greatly reduced, and the effects of reducing the number of parts and the failure rate, releasing the layout space and maintenance operation allowance of a motor and a gearbox, simplifying the framework size and simplifying the manufacturing process are achieved; and on the premise that the mounting position and the vibration reduction index of the primary suspension axle box device are ensured, the transverse width size and the turning radius of the whole bogie are effectively reduced, the curve passing capacity of the bogie is further improved, and the annular vibration reduction axle box is convenient to mount, dismount and maintain.

The invention provides a preparation process of a sapphire photonic crystal fiber grating ultra-high temperature distributed sensor, comprising: Step 1, relying on the preparation process and technology of sapphire special material pipe rods to produce sapphire special material rods and sleeves; Step 2, based on The sapphire special material rod and sleeve provided in step 1 rely on the photonic crystal special fiber preparation process and technology to produce sapphire photonic crystal special fiber; step 3, based on the sapphire photonic crystal special fiber provided in step 2, rely on ultra-fast femtosecond Laser-engraved fiber grating preparation process and technology, manufacturing distributed fiber grating sensing units in sapphire photonic crystal special optical fibers; step 4, using high-temperature sensor packaging based on boron carbide high-temperature structural ceramic sleeves and high-temperature sensor packaging based on sapphire capillary tubes Technology, package and protect the sapphire photonic crystal special optical fiber with distributed fiber Bragg grating sensing unit provided in step 3, and prepare a sapphire photonic crystal fiber grating ultra-high temperature distributed sensor.

The invention aims to provide a joint automatic control device for inner flaps / outer flaps of a hydrofoil catamaran. The joint automatic control device comprises a catamaran. Two sheets are respectively mounted at the left end and the right end of the lower side of the catamaran, a front hydrofoil is mounted at the front ends of the lower sides of the two sheets, a rear hydrofoil is mounted at the rear ends of the lower sides of the two sheets, a first outer flap, a second outer flap, a first inner flap and a second inner flap are respectively mounted at the rear end of the front hydrofoil by the aid of a first connecting shaft, a third outer flap, a fourth outer flap, a third inner flap and a fourth inner flap are respectively mounted at the rear end of the rear hydrofoil by the aid of a second connecting shaft, and the first outer flap, the second outer flap, the third outer flap, the fourth outer flap, the first inner flap, the second inner flap, the third inner flap and the fourth inner flap are respectively connected with respective servo motors. The joint automatic control device has the advantages that the joint automatic control device is simple in structure and reasonable in design, multifunctional and multi-objective cooperative control is implemented, and the safety, the seaworthiness and the maneuverability of the hydrofoil catamaran are improved; the front hydrofoil and the rear hydrofoil are respectively connected with the two sheets of the hydrofoil catamaran, so that the mechanical structural strength is improved.

The invention discloses an aluminum-copper composite wiring terminal for an aluminum alloy high voltage cable, which comprises a copper alloy base body and wiring slots located at two ends of the copper alloy base body, wherein the connecting slots are of a U-shaped slot structure in cross section and symmetrically distributed about an axis of the copper alloy base body, the length of the connecting slots is 1 / 5-1 / 2 of the length of the copper alloy base body, the inner surface of each wiring slot is uniformly provided with an aluminum alloy lining, and the thickness of the aluminum alloy lining is 1 / 4-3 / 4 of the thickness of the side wall of the wiring slot. The preparation method comprises four steps such as copper alloy base body prefabrication, wiring slot preprocessing, aluminum lining positioning and wiring slot diameter expansion and wiring slot fine machining. On the one hand, the connecting structure strength, impact resistance, corrosion resistance and high temperature resistance between the wiring terminal and the cable can be effectively improved, and the mechanical structural strength of the wiring terminal is greatly improved; and on the other hand, the overload capacity of the wiring terminal can be effectively improved, the uniformity of current distribution is improved, so that the reliability and operation stability of power cable connection are greatly improved.

The invention discloses a novel dual-stator Halbach alternating pole permanent magnet vernier motor, comprising a first stator structure, a second stator structure and a rotor structure, wherein the rotor structure is arranged on the first stator structure and the second stator structure In the middle; the first stator structure and the second stator structure are stator structures with the same structure, and both include a stator core, and the stator core is provided with stator slots and stator teeth at uniform intervals in the circumferential direction, and the stator slots are embedded in the There is an armature winding, the tooth end of the stator is split into two modulation poles, and a Halbach permanent magnet array is arranged between the modulation poles; the rotor structure includes a rotor iron core, and the rotor iron core is provided with rotor slots at equal intervals in the circumferential direction , rotor permanent magnets are embedded between the rotor slots. The invention improves the air-gap magnetic density of the motor, effectively reduces magnetic flux leakage, and simultaneously achieves the purpose of reducing the amount of permanent magnets and enhancing the mechanical structure strength of the rotor.

The invention discloses an aluminum alloy high-voltage cable aluminum copper composite terminal. The aluminum alloy high-voltage cable aluminum copper composite terminal comprises a copper alloy substrate and connecting grooves formed in the two ends of the copper alloy substrate; the connecting grooves adopt a U-shaped groove-shaped cross section and are symmetrically distributed along the axis of the copper alloy substrate; the length of the connecting grooves is 1 / 5-1 / 2 of that of the copper alloy substrate; the inner surfaces of the connecting grooves are both distribute with aluminium alloy lining layers; and the thickness of the aluminium alloy lining layers is 1 / 4-3 / 4 of that of the connecting groove side wall; and the preparation method comprises four steps of copper alloy substrate prefabrication, connecting groove pre-processing, aluminum lining layer positioning, connecting groove diameter expansion and connecting groove fine processing. By virtue of the aluminum alloy high-voltage cable aluminum copper composite terminal and the preparation method thereof, the connecting structural strength, the impact resistance performance, the corrosion resistance performance and thehigh temperature resistance performance between the terminal and the cable can be improved effectively, so that the mechanical structural strength of the terminal is highly improved; and in addition,the overload capacity of the terminal is improved effectively, and current distribution uniformity is improved, thereby highly improving reliability and operational stability of the power cable connection operation.