38results about How to "Unlimited service life" patented technology

The invention discloses efficient heterogeneous catalytic oxidation ferric-carbon micro-electrolysis packing and a preparation method thereof. The packing is prepared from the following raw materials in parts by weight: 45-65 parts of pure iron powder, 10-25 parts of cast iron powder, 2-8 parts of graphite powder, 5-15 parts of active carbon powder, 2-10 parts of copper powder, 2-10 parts of manganese powder, 2-10 parts of aluminum powder, 2-10 parts of fine wood bits, 1-6 parts of sodium silicate, 1-6 parts of sodium borate, 2-6 parts of pyrite dust and 5-15 parts of an adhesive. The efficient heterogeneous catalytic oxidation ferric-carbon micro-electrolysis packing disclosed by the invention is prepared by taking heterogeneous metal alloy with high potential difference as a catalyst and using a high-temperature micropore roasting technology and has the characteristics of heterogeneous metal and ferric-carbon integration, micropore framework type alloy structure, large specific surface area, low density, strong activity, high current density and the like; organic wastewater is treated so that COD, ammonia nitrogen and total phosphorus can be efficiently removed, the chroma can be reduced, the biodegradability can be improved, the treatment effect is extremely stable, and the phenomena of packing passivating, hardening and the like caused in the operation process can be avoided.

An electromotive adjustment device for adjusting a control element includes a housing and a gear mechanism which has a plurality of intermeshing gear wheels to define a drive train. In driving relationship with the gear mechanism is a drive motor which is constructed as a brushless motor with an external rotor and includes an output journal, whereby the output journal has a tooth portion in engagement with a helical spur gear wheel of the gear mechanism.

The invention relates to a method for monitoring the load of vehicle tires which are each contacting a pavement with a circumferential section during travel, by means of monitoring devices (4) which are mounted to the tire (1) and contain a transmitter and a generator which is driven by the flexion of the tire (1), said flexion occurring during vehicle operation, wherein the generator generates a first voltage pulse each time it reaches the beginning of the circumferential section of the tire (1), which is contacting the pavement, and generates a second voltage pulse each time it reaches the end of the circumferential section of the tire (1), which is contacting the pavement, the time intervals (t1) between first and second voltage pulses are measured, the time intervals (t1) or a value calculated therefrom are / is compared with a reference value, and a warning signal is generated if a difference detected in this comparison exceeds a predefined value.

The invention provides a double-super-satellite platform ground simulation equipment based on differential air flotation vertical control, and belongs to the field of spacecraft physical simulation. Rx and Ry and Rz degree-of-freedom rotation of a rotating platform is realized by the aid of an air flotation ball bearing, X and Y degree-of-freedom movement of a load cabin air flotation platform anda platform cabin air flotation platform is realized by the aid of a plane air flotation bearing, a support vertical column and a horizontal moving platform jointly form an air flotation structure bythe aid of orifices formed in the support vertical column, and air suspension support, vertical guide and vertically upward pressure control drive of the support vertical column are realized. Verticalguide and vertically downward pressure control drive of the support vertical column are realized, differential air flotation vertical movement control of the support vertical column is further realized, and the equipment has the advantages of six-degree-of-freedom non-contact support drive property, high stability, rapid response and the like and can be used for double-super-satellite platform attitude simulation, big-swing-angle mobility verification, movement imaging ground verification and the like.

The invention provides a manufacturing device and production process of forged steel balls. A numerical control die forging hammer is mainly used; the numerical control die forging hammer comprises ahammer head, a machine body, a sliding block, an upper anvil block, a lower anvil block, a refrigerating machine and a steel ball die; the steel ball die comprises an upper clamping tire, a lower clamping tire, an upper die core, a lower die core, an ejector rod and a discharging rod; the steel ball die is a closed type die forging steel ball die. A production line mainly comprises a heating furnace, a bar shearing machine, a transferring device, the numerical control die forging hammer, a rounding machine and an isothermal quenching machine. The forged steel balls produced by the numerical control die forging hammer and the equipment of the production line device have the advantages of being good in steel ball roundness, high in steel ball quality, high in production efficiency and the like.

The invention discloses a capacitive energy collecting converting device based on transformer substation field energy. The device comprises a capacitive energy collecting converter and an electronic conditioning circuit. The capacitive energy collecting converter comprises an upper pole plate, a lower pole plate and a plurality of insulation supporting columns. The upper pole plate is a semi-sphere shell body. The lower pole plate is a circular flat plate. A semi-sphere shell hollow cavity of the upper pole plate corresponds to the lower pole plate. The semi-sphere shell plane of the upper pole plate is parallel to the lower pole plate. The upper pole plate and the lower pole plate are connected through the three insulation supporting columns. A leading wire is led out from each of the upper pole plate and the lower pole plate and is connected to the electronic conditioning circuit which comprises a rectifying circuit, a storage circuit and a voltage stabilizing feedback circuit which are connected in sequence. The device converts abundant field energy in a transformer substation to electricity energy to be provided for a wireless sensor network, and accordingly the problem of energy feeding of the wireless sensor network is fundamentally solved.

The invention relates to a quanta point / well light-emitting diode, which prepares a light-emitting diode on one side of basic plate; the second and third lighting layers on the another side of said basic plate. When a consequent bias voltage in correct amount is processed on said light-emitting diode, the first lighting layer can emit the first light, via which the second and third lighting layers can be excited to generate the second and third lights in different colors to be output; and when the first, second and third lights are mixed, the needed light can be output.

This energy accumulator has at least two permanent magnets arranged in fixed positions and one permanent magnet capable of traversing with the finger yarn guide. These permanent magnets are arranged so that poles in the same direction face to each other, and the permanent magnets arranged in the fixed positions are positioned near a motor shaft of an electric mechanical driving device, which is formed with a finger thread guide turning shaft in a left or a right turning range of the finger yarn guide, so that magnetic force of the permanent magnets returns the finger yarn guide to a central area, wherein magnetic force of the permanent magnets are neutral, in the condition that the driving device is disconnected.

The invention provides an angle measurement method, system and device of a motor and a computer readable storage medium. The angle measurement method of the motor comprises the steps that a digital signal used for calculating the measurement angle of a motor rotor relative to the position of a magnetic angle sensor is acquired; according to the digital signal, calculating a measurement angle ''of the motor rotor relative to the position of a magnetic angle sensor, and comparing the measurement angle with a reference value of the angle so as to judge whether the measurement angle needs to be calibrated or not; if yes, calibrating the measurement angle on the basis of adding a calibration factor; and if not, returning to the step of acquiring the digital signal for calculating the measurement angle of the motor rotor relative to the position of the magnetic angle sensor. The rotating angle of the rotating shaft of the motor can be accurately measured, and the operation of the motor is accurately controlled.

The invention belongs to the technical field of fluidic control of pressure gas. A wall separation type feedback fluidic oscillator is designed by combining the generated pneumatic principle with a fluid oscillator without a moving part in the pneumatic principle based manner that fluid is jetted around a curved surface in a wall separation mode. Curved wall collision jet flow has very high sensitivity, and the main jet flow is attached to the circular curved wall, collides with wall-separated jet flow at the central position, and is guided back to a wall separation control port at the upstream portion of the jet flow through a feedback pipe to form wall-separated flow. The wall-separated flow enters one side of the circular curved wall, the wall-attached main jet flow on the side is subjected to wall separation in advance, and therefore the stable wall-attached state of the main jet flow is destroyed, the collision points of the wall-surrounding jet flow on the two sides are transferred to the wall separation side, and the collision main jet flow on the two sides is switched to the wall separation side. A jet flow receiving pipe and a feedback pipe on the wall separation side are connected to a separation wall control port on the symmetrical side, and the jet flow continuously repeats the process to generate periodic oscillation. It is proved that the wall separation type feedback fluidic oscillator can be used in strengthening or controlling fluid in various aerodynamic and chemical engineering processes.

The needles (18, 19) of a needle set (17), which substantially agree in their geometry, have butts (28, 29) of different lengths, which have a predetermined breaking point (57, 58). The predetermined breaking points are differently embodied, so that the breaking torques of the butts (28, 29) of the needles (18, 19), which are a part of the set (17), are different. By means of this it is possible, on the one hand, to assuredly prevent damage to the knitting machine, but on the other hand to assure the dependable operation of the needles.

The invention discloses laser grid training equipment for basketball footstep training, and relates to the technical field of sports equipment. The equipment comprises a base weight box, universal rollers, storage chambers, a stand column, an adjusting rod, a laser projector, a projection lens, a power supply system, a loudspeaker, a Bluetooth module, a horizontal suspension arm, a client, a powerline and a solar cell panel. The plurality of universal rollers are fixedly connected to the bottom of the base weight box, storage chambers are arranged in front of and behind the base weight box and integrally formed with a base weight box shell, a fixed stand column is welded to the upper surface of the base weight box, an adjusting rod is connected above the stand column, and a projection lens is arranged at one end of the laser projector. After the technical scheme is adopted, the training equipment has the beneficial effects that the training equipment is simple in design, the trainingfield is not limited, the footstep training can be carried out on any flat ground, the use is flexible, the limb coordination and flexibility of basketball trainees can be effectively helped, a comfortable training atmosphere can be created, the use is convenient, and the popularization value is higher.

The invention discloses a complete machine structure type of a 360-degree full-rotation board internal and external double-machine-contra-rotating propulsion device. The complete machine structure type is provided with a diesel engine and a motor (transverse and vertical arrangement) as hosts, and uses a high-speed contra-rotating paddle and a water lubrication technology; the energy saving is about 15%, the total efficiency is 10% higher than that of the low speed, the speed propulsion efficiency is 10%-12% higher than that of the single paddle, a high-molecular bearing for water lubricationand a stainless steel special bearing which is never worn and a special sealing member are environment-friendly and zero-pollution; an oil motor or a servo motor speed reducer, large and small cylindrical gears and large and small spiral bevel gears are used for realizing 360-degree full revolution, a handle is matched with the large and small cylindrical gears, the spiral bevel gears achieve + / -30-degree rotation; the reversing speed is faster 1.6-1.8 times, and the navigation is safe; the external cooling fin Hough-type square box is connected with the conical support and the hull, or the cylindrical box body is connected with the rectangular frame and the hull, the lower box is streamlined, the middle-section wing rudder pressurizes the water plate, energy is saved, and the impact forceis absorbed; the driver, the PLC single-cable connect cab touch instrument view screen, and the double-machine synchronous and non-synchronous 25-form electronic full-process control; intelligent control panel with ternary lithium battery or lithium iron phosphate battery module.

A high power electric pulse generator includes a charge storage device, a high voltage source for charging the charge storage device, a first photoconductor element connected to the reference potential and to the storage device, a second photoconductor element connected to the storage device and to a useful load, a first light source for delivering a pulse of light to the first photoconductor, a second light source for delivering a pulse of light to the second photoconductor and a synchronization device for synchronizing the emission delay between the first light source and the second light source. The first photoconductor and the second photoconductor are passive semiconductor elements with a linear regime forming photosensitive switches, with the first and second photoconductors being doped silicon photoconductors.