468results about How to "Low driving power" patented technology

A sheet-shaped medium processing apparatus including a pair of arranging members. The arranging members have both an arranging function for arranging paper piled on a tray after being discharged in a discharge direction from a paper discharge roller at a fixed position, and a sorting/arranging function for arranging the papers grouped together at a different position in a direction perpendicular to the discharge direction for grouping together a predetermined number of papers. The apparatus arranges and sorts using low drive power and arranges the paper with high precision regardless of the amount of paper on the tray.

The invention discloses a robot for lower limb joint rehabilitation training, and belongs to the field of medical equipment. The robot comprises an ankle joint device, a knee joint device, a hip joint device, a mechanical leg thigh adjustment device, a mechanical leg shank adjustment device, a leg motion prediction device and a rack. The ankle joint device is directly driven by a motor and under bevel gear drive, and pressure sensors are installed on a pedal and can detect insole pressure to predict motion intentions of an ankle joint; a knee joint and a hip joint are driven by means of a high-speed synchronous belt and a low-speed gear, the mechanical leg thigh adjustment device and the mechanical leg shank adjustment device respectively use a swinging push rod sliding block mechanism composed by an electric push rod and a linear sliding rail, and accordingly the length of a mechanical leg can be adjusted so as to be suitable for patients of different heights; the leg motion prediction device is provided with a pressure sensor which can directly judge motion trends of the hip joint and the knee joint and can predict motion intentions of a lower limb of a human body by being combined with the pressure sensors arranged on the pedal, and accordingly flexible auxiliary rehabilitation training is finished.

The invention discloses a method and a device for measuring the speed and frequency of ultrasonic traveling wave in a liquid. The method comprises the following steps that a monochromatic parallel light beam is vertical to an ultrasonic transmission direction and radiates a dynamic ultrasonic grating that the ultrasonic wave forms in the liquid; the dynamic ultrasonic grating penetrates through a lens and the diffraction spectrum of a traveling wave ultrasonic phase grating is formed; the spectrum is processed and imaged through an amplitude filter and an imaging lens, and a spectrum image of the ultrasonic traveling wave grating is obtained; the spacing of two adjacent spectral lines on the spectrum image is measured, and the wavelength of the ultrasonic wave in the liquid is calculated; the change of an electrical signal after the previous level of spectrum and zero level spectrum of the spectrum image are mixed is detected or recorded, and the frequency of the ultrasonic wave is worked out; the speed of the ultrasonic wave in the liquid is worked out through the wavelength and the frequency. The device for realizing the method comprises a light source, a transparent sink, a lens I, the amplitude filter, the imaging lens and the measuring device which are sequentially connected, and a sound-absorbing medium and the ultrasonic transducer are arranged in the transparent sink and are respectively arranged on both sides.

The invention discloses high-precision vegetable and fruit quick intelligent selecting equipment. The high-precision vegetable and fruit quick intelligent selecting equipment comprises a feeding conveying device, a horizontal conveying device and a pneumatic mechanism, wherein a horizontal conveyer belt comprising rollers is arranged on the horizontal conveying device; one or more groups of screening and discharging mechanisms which are opposite to the pneumatic mechanism in an up and down manner are arranged above the horizontal conveying belt; each screening and discharging mechanism comprises a discharging platform which is fixedly arranged above the horizontal conveying device; anti-falling baffles are respectively arranged on the front side and the rear side of each discharging platform; a rotational flow cover is arranged on each discharging platform; the side edge of each rotational flow cover is arc-shaped; a substandard product blowing-out opening is formed by two side edges of each rotational flow cover and two side edges of the corresponding discharging platform; each substandard product blowing-out opening is in up-and-down correspondence with air jet holes of the pneumatic mechanism. According to the high-precision vegetable and fruit quick intelligent selecting equipment disclosed by the invention, the screening and discharging mechanisms adopting special structures, a feeding and conveying device and rollers in the horizontal conveying device are arranged, the effects of positioning and precise photographing of vegetables and fruits are increased in an omnidirectional manner, and the screening efficiency is also greatly improved.

The present invention relates to cutting equipment and is especially one computerized efficient and high-precision wire electrode cutting machine. The cutting machine consists of frame, winding cylinder driven by one DC motor to rotate in either right direction or reverse direction, Z-axis bench, Y-axis bench, tension mechanism with one pair of tension wheels controlled by one pair of micro cylinders to support the cutting wire, oscillating mechanism with one pair of oscillating support wheels and fixture. The cutting machine is used mainly for cutting silicon wafer, quartz glass, ceramic, jewel, magnesia and other hard and fragile material.

The invention relates to an automatic sun tracking device, and belongs to the technical field of solar utilization. The device comprises a condensation module array, a drive mechanism, a tracking control circuit, a sensor and the like. A set of control and drive mechanism controls and drives hundreds of to tens of thousands of sunlight receiving devices to track the sun; and the receiving devices comprise a condensation or non-condensation photovoltaic cell assembly, a heat energy receiving device, a sunlight reflector, a sunlight refractor and the like and are used for photovoltaic power generation or heat energy application and used for reflecting or refracting the sunlight to a receiver on a tower for photovoltaic power generation or heat energy application and the like. The device has simple structure, is not easy to deform, has good wind resistance, high tracking precision and low cost, and can be used for various solar utilization systems.

The invention discloses a low-power-consumption polymer thermo-optical switch with an air isolating groove structure and a manufacturing method of the low-power-consumption polymer thermo-optical switch and belongs to the technical field of manufacturing of polymer thermo-optical switches. The low-power-consumption polymer thermo-optical switch is composed of five portions including a substrate (1), a SiO2 lower coating (2), a waveguide core layer (3), a waveguide upper coating (4) and micro heating electrodes (5) from bottom to top, the micro heating electrodes (5) are positioned on a waveguide arm of a waveguide interaction area (103), the waveguide core layer (3) is of a Mach-Zehnder interferometer (MZI) type structure, and the waveguide upper coating (4) of the waveguide interaction area (103) is etched to be of the air isolating groove (9) structure by taking the micro heating electrodes (5) as covering films. Redesigning of structures and sizes of a waveguide and the electrode is avoided, and only a dry etching technology is needed to perform one-step etching operation on a device, in other words, power consumption of the device can be effectively lowered. Power consumption of the manufactured thermo-optical switch can be lowered to 6.5mW and is lowered by 45% than that of the device without adopting the air isolating groove structure.

A system and method for reducing visible speckle in images displayed using coherent light. In an embodiment, a system for displaying images includes a light source to produce coherent light, an array of light modulators optically coupled to the light source and positioned in a light path of the light source after the light source, and a controller electronically coupled to the array of light modulators and to the light source. The light source includes a coherent light source, and a first digital micromirror device (DMD) having a first plurality of micromirrors. The first DMD is optically coupled to the coherent light source and positioned in a light path of the coherent light source after the coherent light source. The first DMD directs coherent light by moving the micromirrors of the first plurality of micromirrors through a first range of tilt angles substantially continuously.

The invention relates to a laser cutting machine and a working method thereof. Like a small-breadth laser cutting machine, the laser cutting machine of the invention has high cutting quality, high efficiency and high accuracy, and the consumed power of a driving system in the cutting process is smaller. The laser cutting machine comprises a stand provided with an X lead rail, a main beam provided with a Y lead rail and a laser head seat, wherein the main beam is movably connected with the X lead rail on the stand; the laser cutting machine also comprises a cantilever beam for a laser head to realize short-distance movement in the X direction; the cantilever beam is provided with an X short lead rail; the root of the cantilever beam is movably connected with the Y lead rail on the main beam to enable the cantilever beam to make Y-direction movement; and the laser head seat is movably connected with the X short lead rail. The working method comprises the following steps: 1. installing a buffer area on the short lead rail; 2. according to different processing requirements, calculating by different steps respectively; and 3. starting the laser cutting machine according to the calculating to manufacture. In the invention, a vector control principle is adopted to synthetize VX minor-axis speed, VX long-axis speed and VY speed so as to effectively control the speed in processing to ensure the processing quality.

The invention relates to an inter-section phase-shift asymmetry six-phase permanent-magnetic straight servo motor, wherein it comprises two unit motors serially or parallel connected; the initial magnetic circuits of said two motors are independent; the section are distanced via non-conductive material; the relative windings or relative second axles of two unit motors are distanced via 2k pi+-90degree, while k is integer; the windings are asymmetry six-phase structure; their initial stages are mounted on movable platform and above the second stage of permanent magnet. The invention can restrain winding harmonic wave of synchronous straight motor, reduce driving power of each phase, and improve the stability of servo controller.

The invention relates to a multifunctional crane excavator which has both the hoisting function and the excavating function. By using a chassis of a crawler excavator as an excavator body, the multifunctional crane excavator is provided with a main arm, an auxiliary arm, a balance arm, a supporting seat, a derricking hydraulic cylinder, a main hydraulic winch, an auxiliary hydraulic winch and a balance weight. A gravitational moment which is generated when the multifunctional crane excavator carries out lifting and excavating operations is balanced by a gravitational moment of the balance arm at the other end of the supporting seat; the gravitational moment which is generated during lifting and excavation does not act on the body of the multifunctional crane excavator fully, the roll-over action on the multifunctional crane excavator is very small, therefore, the safety under the condition of the same lifting and excavating capability is improved. Accordingly, the invention is quite suitable for application in special lifting sites and special excavating operations.

The invention relates to a carbon fiber bilayer plastic wrapped steel rope specially used for an elevator and belongs to the technical field of elevators. The carbon fiber bilayer plastic wrapped steel rope specially used for the elevator is provided with a carbon fiber rope core, wherein a synthetic plastic inner protective layer is wrapped outside the carbon fiber rope core; a suction disc which is densely covered by ranks of micro ridges and slots is wrapped outside the inner protective layer; a braided steel wire rope is arranged outside the suction disc, and a synthetic plastic shell is extruded and wrapped outside the steel wire rope. The carbon fiber bilayer plastic wrapped steel rope disclosed by the invention has a scientific and reasonable structure; an intermediate sizing rope core adopts a carbon fiber plastic wrapped rope; a plastic wrapped surface imitates the mode of the suction disc of a wall gecko, and the suction disc which is densely covered by ranks of micro ridges and slots is arranged, so as to enhance the binding ability of the carbon fiber bilayer plastic wrapped steel rope with other materials; the shell is wrapped by the synthetic plastic; and the tensile strength of the carbon fiber resin composite material is 3500MPa or above and is 7-9 times that of a steel wire while the weight of the carbon fiber resin composite material is one fourth of the weight of the steel wire of the same class, thus the carbon fiber bilayer plastic wrapped steel rope disclosed by the invention has a prospect in application of the elevator and is a replacement product of an elevator hoisting rope.

An advertising system and an advertising sign are provided in which the address on the advertising sign can be actively used, the advertising sign can directly serve as a buying and selling device, there is no interference in the advertising sign between the data transmitted simultaneously from a plurality of wireless devices, and the transmission direction of the electromagnetic waves or sound waves transmitted to the advertising sign is clear. The wireless device transmits a terminal address that indicates the address of the terminal to the sign apparatus, the sign apparatus receives the terminal address transmitted from the wireless device and transmits the received terminal address to the advertising server via a public network or the Internet, and the advertising server receives the terminal address transmitted from the sign apparatus and transmits the advertising data to the terminal having the address indicated by the received terminal address.

The invention discloses a sampling device of a deep-space asteroid sample collection detector; the structure is characterized in that the device comprises an ejection port, a housing, an ejection ball storage tube, a driving motor, an air valve housing, a piston, a cam, a trigger, a trigger return spring, a pedestal extension bar, a pedestal piston connector, a pedestal, a valve body, a valve core control spring, a valve core, a stopping block, ejection balls, an arch bar, a piston O-shaped sealing ring, and the like. The invention is characterized in that: the driving part controls the starting of the piston; the piston controls the on and off of compressed air by pushing the valve core of the air valve; the ejection balls are ejected out of the pipeline orifice with certain kinetic energy by pushing of the high-pressure air; and the sampling purpose is reached by soil sputtering caused by bumping with the asteroid surface. The invention is a surface trace sample collection device which is small in mass, simple and reliable in structure, and convenient for automatic operation, and overcomes the influence of 'zero-gravity' environment by a diffusion principle.

A combustion type power tool having an arrangement avoiding direct striking of a drive shaft against a cylinder head when combustion pressure is exerted. A motor is disposed at the cylinder head and includes a motor body and a drive shaft extending in an axial direction and protruding into a combustion chamber. A fan is connected to the drive shaft to be rotatable within the combustion chamber. A buffer piece made from an elastic material is supported to the cylinder head. The buffer piece is movable relative to the cylinder head in a direction substantially perpendicular to the axial direction. The buffer piece is formed with a through-hole through which the drive shaft extends.

The invention discloses a method for automatically adjusting belt conveyor speed. The method comprises the steps of S1, collection, S2, material weight determination, and S3, belt conveyor speed adjustment. In S1, the real-time operation speed of the belt conveyor and the material information of the belt conveyor are collected by cameras located at two sides of the belt conveyor, wherein the material information comprises the material height information and material width information. In S2, the material size is calculated based on the material information, and the material weight information is obtained based on the material size and a preset material density. In S3, a target operation speed of the belt conveyor is calculated based on the material weight information, and the operation speed of the belt conveyor is calculated based on the target operation speed and the real-time operation speed. According to the method and device for automatically adjusting the belt conveyor speed, the goal of saving energy and reducing emission is achieved through the real-time adjustment of the operation speed of the belt conveyor and reduction of the drive power of the belt conveyor.

The invention discloses a working platform for a composite closed type hydrostatic guide rail. An axial supporting device comprises an axial upper thrust plate fixedly connected with a turntable; the lower part of the axial upper thrust plate is provided with an axial hydrostatic support fixedly connected with a lathe bed; the lower part of the axial hydrostatic support is provided with an axial lower thrust plate fixedly connected with the axial upper thrust plate; the lower part of the axial upper thrust plate is provided with a guide rail soft belt layer which is connected with the axial hydrostatic support; and oil cavities are arranged between the soft belt layer and the axial hydrostatic support, and between the axial hydrostatic support and the axial lower thrust plate respectively. A radial supporting device comprises a radial bearing liner fixedly connected with the turntable; the outside of the radial bearing liner is connected with a radial hydrostatic support; and an oil cavity is arranged between the radial bearing liner and the radial hydrostatic support. A driving device is a motor, and the oil cavity is communicated with an oil supply system through a restrictor. The working platform is suitable to serve as a rotary working platform for a digital control machine tool with complex functions.

The invention provides a machine tool with the functions of cutting and milling simultaneously, which comprises a base, a work slipway and a spindle device; wherein, the work slipway comprises a first work slipway and a second work slipway; the first work slipway adopts a rolling guide for support and adopts a motor-lead-screw-nut as auxiliary driver; the second work slipway adopts a rolling guide for support and adopts a one-piece motor-lead-screw-nut as auxiliary driver; the spindle device is arranged on the first work slipway in a horizontal way; the movement directions of the two work slipways are orthogonally arranged. When the machine tool is used as a milling machine, the machine tool also comprises a third work slipway and a milling chuck; when the machine tool is used as a cutting machine, the machine tool also comprises a chuck and a cutting off tool rest; when the machine tool is used as another milling machine, the machine tool also comprises a rotary work table and a milling chuck.