31results about How to "Low life" patented technology

The invention discloses a rigid rotor system for a helicopter. The rigid rotor system comprises a rigid rotor propeller hub, a rigid rotor pitch control mechanism and rigid rotor paddles, wherein the rigid rotor pitch control mechanism and the rigid rotor paddles are glued integrally and are connected with the rigid rotor propeller hub by virtue of bolts. According to the system disclosed by the invention, deep groove ball bearings and thrust bearings in the conventional teeterboard type propeller hub structure are replaced by joint bearings, so that a series of complex structures such as pitch change shafts, flapping hinges and vertical hinges are removed, and the problems such as complexity of the conventional teeterboard type propeller hub structure, heavy weight and short service life can be solved. Meanwhile, the problems that retreating paddleseasily enter an aerodynamic stalling state so as to reduce the aerodynamic efficiency due to swinging during high-speed forward flight and the like are solved, and the rigid rotor system has the advantages of simple structure, light weight, long service life, high maintainability and the like.

The present invention discloses a flexible and elastic electrode and application thereof. The electrode comprises elastic fiber and silver alloy plated fiber, the proportion of the elastic fiber and the silver alloy plated fiber is 1:1-50, and the elastic fiber and the silver alloy plated fiber are integratedly connected in a knitting manner. The silver alloy is composed of silver and more than one metal elements selected from tin, zinc, nickel, copper, gold, cadmium, lead, bismuth, indium and gallium. In the silver alloy plated fiber, the silver makes up 10-70% of the fiber weight, and the one metal elements selected from tin, zinc, nickel, copper, gold, cadmium, lead, bismuth, indium and gallium make up 0.01-20% of the fiber weight. The electrode is especially suitable for a wearable device, reliable contact between the electrode and the human skin is ensured, the electrode has the characteristics of low power consumption, low impedance, long service lifetime, high elasticity, high strength, stretching resistance, light weight, small size and good flexibility, the electrode can be bent, folded and washed, is comfortable to wear, convenient use and not easy to be polarized, and is safe and reliable, and long-term monitoring of myoelectricity, brain electricity, electrocardio, heart rate, respiration and body temperature of a human body can be achieved.

The invention discloses a gasoline engine type tamping machine with transverse moving, rotating and multi-point tamping functions, and belongs to the field of small railway maintenance machinery. The technical scheme includes that a gasoline engine with a clutch, a belt transmission gear and two output mechanisms are fixed onto an upper frame; the upper frame is connected with a middle frame by a rotating device and is positioned by a positioning pin; the middle frame is connected with a bottom frame by a transversely moving mechanism, the transversely moving mechanism comprises two pairs of double-edge insulating wheels, and the two pairs of double-edge insulating wheels are respectively fixedly connected to the middle frame and roll on the upper surface and the lower surface of a transverse beam of the bottom frame; the bottom frame can travel on tracks, two tamping devices are respectively connected with the output mechanisms to implement multi-point tamping, and lifting handles are arranged at two ends of the upper frame. The gasoline engine type tamping machine has the advantages that the gasoline engine type tamping machine can conveniently transversely move and rotate to carry out multi-point tamping, is high in applicability and production efficiency, comfortable to operate, excellent in insulating, long in service life, novel in design, reasonable in structure and easy and convenient to maintain, is light, safe and reliable and can quickly get on and off the tracks, accordingly, the driving safety, the construction safety and the personal safety can be guaranteed, and good tamping effects can be realized.

The invention discloses a double-plastic composite tube and production equipment thereof. The double-plastic composite tube comprises a polyethylene layer and a polyvinyl chloride layer, and the polyethylene layer is arranged outside the polyvinyl chloride layer. The double-plastic composite tube is excellent in corrosion resistance, long in service life, free of leakage, high in ring stiffness, good in toughness, lightweight, low in cost, capable of being made into large-diameter pipelines, convenient to transport, easy to mount and simple to connect, the polyethylene layer coats the polyvinyl chloride layer to form a composite plate strip which is made into the double-plastic composite tube through the double-plastic composite tube production equipment, and the production equipment is simple in structure, good in operability, high in production efficiency and low in cost.

According to the invention, based on different metal conductivity, through combined action of a metal brazing process and a stainless steel frame, glass frame supporting point matrixes are organicallycombined; vacuumizing between tempered glass plates is achieved through heating and vacuumizing in a vacuum brazing furnace; the edges of the vacuum tempered glass plates are sealed through brazing to prepare a vacuum tempered glass plate; and a communicating sealing pipe member for communicating two sides is arranged on the vacuum tempered glass plate. According to the invention, the obtained glass overcomes the defect that existing vacuum glass is welded through brittle low-temperature glass, and achieves the vacuum brazing of a metal to stainless steel and glass through the metal with kovar characteristics; and the problems of the existing vacuum glass are solved, the vacuum glass is made into large-area vacuum glass on the premise that tempering is not lost, the process is simple, thebrazing sealing effect is good, the service life is long, the vacuum glass is tempered safety glass, and the vacuum glass is the development direction of the existing vacuum glass.

The invention discloses an electrical heating cast aluminum heat exchanger which comprises a shell (1), a coil (2) and a plurality of heating rods (3) are arranged in the shell (1), and all the heating rods (3) are controlled through a control circuit which is located in an electronic control cabinet (4) on the upper portion of the shell (1). The electrical heating cast aluminum heat exchanger is characterized in that a cavity in the shell (1) except for the coil (2) and the heating rods (3) is filled with cast aluminum or cast aluminum alloy. The electrical heating cast aluminum heat exchanger is simple in structure, ingenuous in design, reasonable in layout, high in heat exchanging efficiency and capable of achieving high-temperature heating.

According to the invention, based on different metal conductivity, through combined action of a metal brazing process and a stainless steel frame, glass frame supporting point matrixes are organicallycombined; vacuumizing between tempered glass plates is achieved through heating and vacuumizing in a vacuum brazing furnace; the edges of the vacuum tempered glass plates are sealed through brazing to prepare a vacuum tempered glass plate; and a communicating sealing pipe member for communicating two sides is arranged on the vacuum tempered glass plate. According to the invention, the obtained glass overcomes the defect that existing vacuum glass is welded through brittle low-temperature glass, and achieves the vacuum brazing of a metal to stainless steel and glass through the metal with kovar characteristics; and the problems of the existing vacuum glass are solved, the vacuum glass is made into large-area vacuum glass on the premise that tempering is not lost, the process is simple, thebrazing sealing effect is good, the service life is long, the vacuum glass is tempered safety glass, and the vacuum glass is the development direction of the existing vacuum glass.

The invention provides a carving swing head and belongs to the technical field of mechanical manufacture. A reducer installation plate is arranged at the bottom of a rotary box, a harmonic reducer is installed on the reducer installation plate, a bearing is installed between a bearing seat and the reducer installation plate, and a rotary shaft B is installed on the bearing and the output end of the harmonic reducer; a spindle head is installed on a spindle installation plate; the spindle head is installed on a rotary shaft installation plate with the spindle installation plate; reducer synchronous belt wheel and a motor synchronous belt wheel are installed on a harmonic reducer input shaft and a rotary motor shaft respectively and are connected through a synchronous belt; a rotary motor is installed on a rotary motor seat installed on the rotary box. The carving swing head has the advantages that the machining interference can be avoided during cambered surface machining, the box structural strength is enhanced greatly, a bearing is installed between a shaft C harmonic reducer output end and the spindle installation plate, and the axial load bearing capability is improved during the spindle machining.

The invention discloses a waterproof LED, which comprises a whole consisting of a circuit board and a plurality of radiators. At least one light emitting chip is arranged on the circuit board and the radiators, a package portion is arranged on each light emitting chip directly arranged on the corresponding radiator, and a water joint is connected onto the circuit board. Compared with a lamp consisting of common LEDs, the waterproof LED has the advantage that a plurality of thermal resistors are decreased, so that heat can be more rapidly dissipated, the LED is more effectively kept durable and stable, light attenuation is slowed down, and the service life of the LED is prolonged. Moreover, as a light source support, a primary lens and two layers of heat transfer paste or heat transfer pads are omitted, the weight of the whole lamp is lighter. As the LED is waterproof and the light emitting chips are directly fixed onto the radiators, compared with an original LED assembly lamp, the waterproof LED has the advantages that the process of welding the LED on an aluminum substrate is omitted, a waterproof device and reflow welding or manual welding are omitted, equipment investment, material cost and labor cost are reduced, and a pressure-balanced valve and the like are omitted.

According to the a regulation and control vacuum tempered glass plate, double glue sealing is performed or high-humidity air is introduced into a vacuum furnace; the hollow interlayer is subjected toair exhaust, so that the double-glue sealing glass can be rapidly cured, and the edge of the hollow glass is rapidly sealed and cured; and a communicating sealing pipe member for communicating two sides is arranged on the vacuum tempered glass plate. According to the invention, good glass airtight sealing bonding and structural bonding quality is achieved, the problem of tempering loss of vacuum glass is solved, and the safety problem of the vacuum glass is solved; the functional vacuum glass has the advantages that the manufacturing process is simple, the functional vacuum glass is widely made from common tempered glass, the manufacturing cost is greatly reduced, the safety and the yield are greatly improved, and the structural form can be diversified; and the tempered glass plate has thecharacteristics of thinness, light weight, high strength, safety, long service life, large size, high yield, strong functionality, low energy consumption, efficient light transmission, safety, low manufacturing cost, condensation prevention, convenience for large-scale production and the like.

An embedded door machine motor relates to the technical field of elevator door machine motors. The embedded door machine motor comprises a motor shell, a rotating shaft, a rotor, a stator, a belt pulley and a radiating device, wherein the rotating shaft is installed inside the motor shell, the right end face of the motor shell is uniformly provided with four mounting holes, the rotor is sleeved on the rotating shaft, the stator is arranged on the outer side of the rotor, the belt pulley is installed at one end of the rotating shaft, and the radiating device is installed on one side of the rotating shaft and inside the motor shell. The embedded door machine motor further comprises a coded disc, Hall sensors and a microprocessor, wherein the coded disc is sleeved on the rotating shaft, four Hall sensors are uniformly arranged at the positions corresponding to the coded disc, and the microprocessor is arranged inside the motor shell and connected with the four Hall sensors. The embedded door machine motor disclosed by the invention can precisely control and measure rotating speed and displacement and is accurate in control, wider in application range, simplified in installation step and longer in service life.

The invention belongs to the technical field of heat conduction materials, and particularly relates to a manufacturing method of a flexible heating sheet. The method comprises the following steps: acquiring a carbon nanotube fiber bundle and a substrate, and arranging the carbon nanotube fiber bundle on the substrate according to a preset circuit diagram to obtain the substrate on which a fiber circuit diagram is arranged; and depositing a rubber mixed material on a surface of one side, provided with the fiber circuit diagram, of the substrate so that areas, except ends of the carbon nanotubefiber bundles, in the fiber circuit diagram arranged on the substrate are fixedly sealed in the rubber mixed material, and forming the heating sheet on the substrate, wherein the rubber mixed materialincludes a rubber and a curing agent. The manufacturing method of the flexible heating sheet provided by the invention is simple in process flow, flexible and convenient to operate, and suitable forindustrial large-scale production and application.