3110results about How to "Avoid flying" patented technology

A cutting and dust collecting assembly comprises a rotatable, circular saw blade (4) having a first side (20), a second side (21), and a cover device (6) with a terminal member (52). The bottom surface (36) of the cover device extends in a plane. A longitudinal passage (45, 46) for the saw blade extends through the cover device from its top surface to its bottom surface. The terminal member comprises a terminal chamber (60) having an inlet (45a), the mouth of which coincides with the plane of said bottom surface. An outlet (58) can be connected to a vacuum source. The direction of rotation of the operating blade is such that the rear part (4a) of the saw blade which has passed beyond the bottom surface of the cover device will move in a direction upwards-rearwards towards the bottom surface. The invention also concerns the cover device, a sealing body belonging to the cover device and a working machine which is provided with the cutting and dust collecting assembly.

A powder conveying device includes: a conveying nozzle, provided with a powder receiving opening; an open/close member to open/close the powder receiving opening; a flange provided to the open/close member; a biasing member to bias the open/close member; and a container setting section to which a part of a powder container is to be fit. The powder container includes: a conveyor to convey the powder from a second end of the powder container to a first end; a container opening protruding from the first end; a nozzle receiving opening into which the conveying nozzle is to be inserted; and a butting portion provided in the container opening, to butt against the flange. When the powder container is attached to the powder conveying device, the container opening is fitted to the container setting section, and the flange and the biasing member are housed in an inner space of the container opening.

The invention discloses an anti-collision fixed-point unmanned aerial vehicle for fire control, and belongs to the field of unmanned aerial vehicles. The anti-collision fixed-point unmanned aerial vehicle for fire control comprises an unmanned aerial vehicle body, a bomb-dropping gun and an anti-collision cover, wherein the bomb-dropping gun is arranged below the unmanned aerial vehicle body; a steering engine is mounted on the bomb-dropping gun and is used for controlling the bomb-dropping gun to launch a fire extinguishing bomb; a collimation mechanism is mounted on the parallelly arranged bomb-dropping gun, so that the bomb-dropping accuracy is improved; the anti-collision cover adopts a cage-shaped structure; the cage-shaped structure encircles the periphery of the unmanned aerial vehicle body to protect the unmanned aerial vehicle body from being collided; a waterproof cover is also arranged on a spiral paddle support to prevent the spraying of flames. According to the anti-collision fixed-point unmanned aerial vehicle, fixed-point fire extinguishment on high-rise buildings and narrow channels is carried out without geographical environment limitation, and the unmanned aerial vehicle is unlikely to collide and damage, high in flying speed, sensitive in actions and wide in application range.

The present invention relates to a holding and sealing material 2 set between a catalyst carrier 1 and a shell 95 which covering the outside of the catalyst carrier 1 in a catalytic converter for purifying an exhaust gas and manufacturing method thereof. An organic binder 22 on the holding and sealing material 2 has the glass transition point Tg (° C.) of less than or equal to approximately 5° C. In addition, an infiltrating step and a drying step are conducted during the manufacturing. In the infiltrating step, the mat-like material is infiltrated with emulsion containing the organic binder. In the drying step, the mat-like material containing the emulsion is dried.

A sputtering target producing few particles, a backing plate or a sputtering apparatus, and a sputtering method producing few particles. An arc-spraying coating film and a plasma-spraying coating film over the former are formed on the sputtering target, a backing plate, or another surface in the sputtering apparatus, where an unwanted film might be formed. Thus a deposit is prevent from separating/flying from the target, backing plate, or another surface where an unwanted film might be formed in the sputtering apparatus.

The invention discloses a remote control terminal of an unmanned flight vehicle, as well as a flight auxiliary system and method of the unmanned flight vehicle, and belongs to the field of unmanned flight vehicles. The remote control terminal comprises an information acquisition module, an information processing module and an information output module; the information acquisition module is used for acquiring position information of an observation position, and acquiring position information and flight state information of the unmanned flight vehicle through a wireless network; the information processing module is used for acquiring the position information, relatively to the observation position, of the unmanned flight vehicle, according to the position information of the unmanned flight vehicle and the position information of the observation position; the information output module is used for outputting the flight state information of the unmanned flight vehicle and the position information of the unmanned flight vehicle relativley to the observation information. According to the remote control terminal of the unmanned flight vehicle, as well as the flight auxiliary system and method of the unmanned flight vehicle, a manipulator controls a flight path of the unmanned flight vehicle in an assisting manner through mastering the current flight position and the flight state of the unmanned flight vehicle; the blind flight and thw lost flight are prevented; meanwhile, the flight experience of the manipulators is improved.

The invention discloses a crushing mechanism for a coal mining device, comprising a main body part (1), a power component installed on the main body part (1) and a work component (2) driven by the power component, wherein the power component is used for driving the work component (2) to do the reciprocating straight line motion. In the work process of the crushing mechanism, the straight line motion does not generate a centrifugal force, thereby preventing the crushed coals from flying out in crushing process and guaranteeing the personal safety of the staffs in the tunnel; meanwhile, the coal crushed by the straight line motion is not cut into powders so as to prevent coal dusts from flying in the tunnel and to improve the air quality in the tunnel; in addition, the single motion stroke of the straight line motion is large so as to improve the crushing efficiency of the crushing mechanism. The invention further discloses a coal mining device including the crushing mechanism.

The invention relates to a tool fixture, in particular to a tool fixture for cylindrical workpiece punching. In order to solve the technical problems, the invention provides the tool fixture for cylindrical workpiece punching, and the tool fixture is convenient to operate and is convenient in collecting waste chippings. The tool fixture for cylindrical workpiece punching comprises a mounting frame, a motor, a rotary shaft, a first wire winding wheel, a second wire winding wheel, a second stay wire, a first stay wire, a left fixed pulley, a right fixed pulley, a first slide rail and the like, wherein the left fixed pulley, the motor and the right fixed pulley are sequentially arranged on the bottom inside the mounting frame from left to right; the rotary shaft is arranged on the top of the motor; the first wire winding wheel and the second wire winding wheel are arranged on the rotary shaft; and the second wire winding wheel is arranged below the first wire winding wheel. According to the tool fixture, the motor drives an L-shaped clamping plate to get close to the middle for clamping the workpieces; and moreover, a collecting frame for collecting waste chippings and a fan for blowing away the waste chippings are arranged.

The present disclosure relates to an unmanned aerial vehicle (UAV) able to harvest energy from updrafts and a method of enhancing operation of an unmanned aerial vehicle. The unmanned aerial vehicle with a gliding capability comprises a generator arranged to be driven by a rotor, and a battery, wherein the unmanned aerial vehicle can operate in an energy harvesting mode in which the motion of the unmanned aerial vehicle drives the rotor to rotate, the rotor drives the generator, and the generator charges the battery. In the energy harvesting mode regenerative braking of the generator reduces the forward speed of the unmanned aerial vehicle to generate electricity and prevent the unmanned aerial vehicle from flying above a predetermined altitude.

The invention discloses a racket automatic spraying system. The racket automatic spraying system comprises a loading station, a spraying station, a curing station and an unloading station arranged on a conveying production line in sequence; a driving chain of the conveying production line is provided with multiple racket fixed sleeves for inserting rackets; the spraying station is provided with a spraying manipulator; the spraying manipulator is provided with a combined spraying gun, a racket driving mechanism and a position detecting device; when the racket fixed sleeves move beside the spraying manipulator, the position detecting device sends a control signal; the spraying manipulator and the racket fixed sleeves keep synchronous movement; the combined spraying gun is controlled to automatically spray one surfaces of the rackets; after the combined spraying gun sprays one surfaces of the rackets, the racket driving mechanism acts to rotate the rackets on the racket fixed sleeves; and at this time, the combined spraying gun automatically sprays the other surfaces of the rackets by procedures. The racket automatic spraying system can realize full-automatic racket spraying to prominently improve the production efficiency, reduce the labor intensity of staff and effectively improve the spraying quality of the rackets.

An object of the invention is to provide a holding and sealing mat material of a catalytic converter for purifying an exhaust gas which can prevent inorganic fibers from flying in all directions from a surface of the holding and sealing mat material, and can keep a working environment at a time of assembling good. In the holding and sealing mat material of a catalytic converter for purifying an exhaust gas, which is arranged between a catalyst carrier and a shell covering the catalyst carrier from the outside thereof, the holding and sealing mat material includes a mat-like material consisting of inorganic fibers and being formed in a mat shape and a binder of 0.5 to 20 weight % of an organic binder or an inorganic binder, which is attached to the mat-like material, wherein a filling bulk density of the holding and sealing mat material after being assembled is within a range between 0.1 and 0.6 g/cm³, and wherein in the case of estimating distribution rates of solids constituents in the binder attached to the mat-like material by dividing the mat-like material into three equal parts of an upper portion, a middle portion and a lower portion in a thickness direction, the distribution rates of the upper portion and the lower portion are higher than that of the middle portion.

The invention relates to the production field of tire rubber sizing materials, in particular to a method for mixing liquid state white carbon black and liquid state natural rubber in a liquid phase. The preparation method for liquid phase stirring and mixing of the white carbon black and the natural rubber comprises the steps of (1) preparing slurry; (2) mixing; (3) solidifying, dehydrating, washing and stoving. The method adopts liquid-liquid high speed stirring and mixing to effectively preserve original states of natural rubber macromoleculars, effectively preserves brute force of the natural rubber and substantially promotes brute force and abrasive resistance of mixed glue. Brute force of sizing materials mixed by using the method is substantially promoted, and themogenesis and hysteresis loss are obviously reduced. The mixed glue produced by the method can be singly used and can also be blended with the natural rubber, rubber polymer, natural rubber carbon black rubber master batch and rubber polymer carbon black rubber master batch according to certain proportion. According to the method, the liquid state white carbon black and the liquid state natural rubber are mixed directly, the process is simple, the land occupation is small, the equipment investment is low, and dust pollution does not exist in a production process.

The invention discloses a flight assisting method and device of an unmanned aerial vehicle, belonging to the field of unmanned aerial vehicles. The flight assisting method comprises the steps of: acquiring observation position information, and position information and flight status information of the unmanned aerial vehicle; acquiring position information of the unmanned aerial vehicle relative to an observation position according to the position information of the unmanned aerial vehicle and the observation position information; and outputting the flight status information and the position information relative to the observation position of the unmanned aerial vehicle. The method and the device provided by the invention can be used for helping a manipulator to control the flight path of the unmanned aerial vehicle through holding a current flight position and status of the unmanned aerial vehicle, so that blind flight and loss are avoided, and the flight experience of the manipulator is improved.

The invention relates to a grinding device for ring-shaped workpieces. The grinding device for the ring-shaped workpieces comprises a vertical frame, a clamping assembly and a grinding mechanism, wherein the vertical frame comprises a stand column and at least one stop block fixed to the stand column; a cylinder is arranged outside the stand column; the clamping assembly comprises three clamping parts arranged in the circumferential direction at equal intervals; each clamping part comprises a first circular arc plate, a second circular arc plate, a spring connected with the first circular arcplate and the second circular arc plate, and two iron rods connected with the first circular arc plate; each iron rod extends out of the cylinder; three electromagnets are arranged outside the cylinder, and each electromagnet corresponds to the two iron rods of the corresponding clamping part; the grinding mechanism is located above the stand column; a dust collection trough is fixed below the stand column and connected with a fan through a first air duct; and the fan is connected with a dust storage barrel through a second air duct. By means of the grinding device for the ring-shaped workpieces, the to-be-ground ring-shaped workpieces are tightly positioned, the grinding quality is good, and due to dual matching of the dust collection trough and a dust hood, dust flying is avoided.

In the invention, two kinds of waste material dry dust discharging coal ash and desulfurize gyp produced by power plant burning sub-bituminous coal or lignitous coal are used as main composition, shell and or cement, calcined gypsum and aluminum sulfate or alunite are used as secondary composition, they are prepared to dry powder soil curing agent by weighing, matching, forced stirring and mixing. The soil can be concreted by mixing a proper quantity of curing agent into the soil and processes of stirring, compacting, soaking and maintaining.

The invention discloses a compound chemical coal dust suppressant and a preparation method thereof. The preparation method comprises the steps of uniformly stirring 20-40 parts of water-based acrylate emulsion, 2-10 parts of activating agents, 2-10 parts of emulsifying agents, 2-5 parts of aids and 100 parts of water uniformly for 0.5 hour at 40-60 DEG C and then cooling the mixture to the room temperature. The compound chemical coal dust suppressant has the functions of wetting, bonding and coagulating. When used, the dust suppressant is diluted with water according to a ratio of 1:(10-1000), then the dust suppressant water solution is injected into a sprayer, and coal pile dust flying can be effectively suppressed for a long time by uniformly spraying the dust suppressant water solution onto the coal pile surface according to the amount of 1.0-2L/m<2>.

An electric power saw/cutter (1) comprising: a. a rotatable saw structure (2) b. a rear handle (5) with a switch/speed control (6) c. a front handle (7) d. a drive unit (8) for rotating the saw structure (2), the drive unit (8) itself comprising: e. a saw structure drive arrangement (9) to which the saw structure is attachable f. a transmission (10) for driving the saw drive arrangement (9) g. an electric motor (11) for driving an input shaft (12) of the transmission h. a support structure (13) for holding/carrying the saw structure drive arrangement (9), the transmission (10) and the electric motor (11), characterised in, that the front handle (7) and the rear handle (5) are directly connected to each other to form a handle unit (4), which unit is resiliently connected to the drive unit (8), so that vibrations from the saw blade (2) and drive unit (8) will be reduced in the handle unit (4).

The present invention provides a base substrate for epitaxial diamond film capable of epitaxially growing a large area of high quality diamond, having a diameter of 1 inch (2.5 cm) or more, on an iridium base by using the CVD method, a method for producing the base substrate for epitaxial diamond film, an epitaxial diamond film produced with the base substrate for epitaxial diamond film and a method for producing the epitaxial diamond film. An iridium (Ir) film is formed by epitaxial growth on a single crystal magnesium oxide (MgO) substrate or a single crystal sapphire (α-Al₂O₃) substrate by means of a vacuum deposition method or a sputtering method, and a bias nucleus generation process of forming epitaxial diamond nuclei is applied to the surface of the iridium (Ir) base formed as a film by exposing an ion-containing direct current plasma to the surface of the iridium (Ir) base formed as a film.