83results about How to "Change the direction of force" patented technology

The invention provides a 3D printing method and device of a large-inclination part and an electronic control multifunctional powder distribution device. The printing method includes the steps of part region division, corresponding spray tube determining when different border regions are formed and part forming. When the interior region of the part is formed, the electronic control multifunctional powder distribution device equally divides the powder in a power feeding tube and powder spraying is conducted by multiple spray tubes; when any border of the border region of the part is formed, the electronic control multifunctional powder distribution device conveys all the powder in the powder feeding tube to the corresponding spray tubes of the border, and the corresponding spray tubes convey the powder to a molten bath. By means of the 3D printing method and device of the large-inclination part, the spray tubes at the different positions of multi-tube coaxial nozzles are used for spraying the powder separately when the borders of the inclined part are formed, the force direction of the molten bath is changed, flow phenomenon of the powder in the molten bath caused by the gravity and the powder impact force when the borders of the inclined part are formed is reduced even is eliminated, and the limit of the inclined angle of the formed part can be finally increased without adding support conditions.

The invention provides a device preventing a raw material from blocking a raw material box. The device comprises the powder raw material, a raw material spare box, a uniform scraper, a metering pond, a transfer cylinder, a swing bottom plate, an eccentric wheel, a connection rod and a motor. The lower edge of the inside of the raw material spare box is provided with the swing bottom plate, the center of the swing bottom plate is vertically connected with the connection rod and located on the outer side of the raw material spare box, the right side of the raw material spare box is provided with the transfer cylinder, and the uniform scraper is fixed to the raw material spare box. The swing bottom plate changes the stress direction of the powder raw material in the raw material box under the action of the eccentric wheel, and the powder raw material is prevented from being accumulated in and blocking the raw material box.

A high-precision dynamic loading test apparatus comprises a permanent magnet, an electromagnet, a force transducer, an installation support wall and a pedestal; a to-be measured workpiece is fixedly disposed on the pedestal via a clamping device; the installation support wall, which is equipped with the force transducer, is fixedly connected with the pedestal; the electromagnet and the force transducer are in an rigidity connection; the permanent magnet is disposed at the to-be measured workpiece; the electromagnet and the permanent magnet are in opposite positions with a setting distance which is larger than the amplitude of the to-be measured workpiece when in fatigue test. The high-precision dynamic-loading fatigue test apparatus has a loading mechanism with no direct contact with the to-be measured workpiece, is high in measure precision, simple in structure and easy to operate.

A precise U-shaped bending die for magnesium alloy sectional materials is mainly used for processing the magnesium alloy sectional materials. The die comprises an upper die frame and a lower die plate and is characterized in that the rectangular upper die frame consists of an upper crossbeam plate, a lower crossbeam steel pad and two precisely feeding racks, wherein the upper crossbeam plate and the lower crossbeam steel pad are horizontally arranged, the precisely feeding racks are vertically arranged as vertical sides, and the precisely feeding racks are connected to the upper crossbeam plate and the lower crossbeam steel pad; retaining plates are embedded on the outer sides of the precisely feeding racks, grooves are formed between the precisely feeding racks and the retaining plates, and rotating gear discs can slide in the grooves and are meshed with the precisely feeding racks; and two adjustable support wheels, the rotating gear discs and a retainer are arranged on the lower die plate, and a guide wheel and a molding wheel are arranged on each rotating gear disc. The deformation and breakage problems of magnesium alloy are basically solved. Through the fine adjustment of a wheel gap, the gap accuracy of the sectional materials is increased by 50%, and the defective rate is reduced by 80%.

The invention discloses a universal ground lead for a 110 kilovolt overhead line strain tower, belonging to a ground lead of an overhead transmission line. The ground lead comprises a hook head, an insulation rod, a soft copper line and a transverse rod, wherein one end of the soft copper line is installed on the hook head, and the other end of the soft copper line is connected with a grounding chuck; the upper part of the hook head is provided with a U-shaped opening for clamping a lead; one end of the transverse rod is fixed at the root of the hook head, and the other end of the transverse rod is provided with an adjusting support capable of rotating around the transverse rod; the upper part of the insulation rod is fixed on the adjusting support; a nut is arranged at the center of the transverse rod; a lead screw penetrates through the upper end of the nut and is fixedly provided with a lock block; the upper part of the lock block is provided with a circular arc groove; a guide groove which is matched with a straight shank in the middle of the hook head and is capable of sliding up and down along the straight shank in the middle is arranged in the side surface of the lock block; the lower end of the lead screw is connected with one end of a flexible shaft, and the other end of the flexible shaft penetrates through the insulation rod so as to be connected with a rotary shank; and the rotary shank is installed at the bottom end of the insulation rod. The universal ground lead has the advantages of being suitable for any tower shape line hanging structure of the 110 kilovolt overhead line, reliable in lead clamping, and convenient to install and uninstall.

The invention discloses a microparticle machine. The microparticle machine comprises a machine base, a machine groove, a discharging hole, a machine cover, a feeding hole, an arc-shaped smashing toolroller and a power source, wherein the machine groove is formed in the machine base; the discharging hole is formed in the bottom of one end of the machine groove; the machine cover is matched with the machine groove to form a smashing space; the feeding hole is formed in the machine base or the machine cover; the arc-shaped smashing tool roller is arranged in the smashing space in a matching way;and the power source is in transmission connection with the arc-shaped smashing tool roller. In the microparticle machine, the arc-shaped smashing tool roller is matched with the smashing space, thecutting smashing manner of materials is changed radically in terms of the smashing principle, a collision-grinding-cutting composite manner substitutes for the original single collision or cutting manner, and the high-speed running state is utilized, so that a superior smashing-granulating effect is achieved in order to meet the demand for materials in the subsequent application field. The microparticle machine particularly has superior processing capability for plant raw materials with heavy moisture and heavy fibers as an industrial pain point.

The invention provides a wheelchair and an operation method thereof. According to the technical scheme, hand wheel rings of a traditional wheelchair are removed, and ratchet wheel drive rods capable of resetting automatically are mounted on hubs of vehicle wheels. The ratchet wheel end of each ratchet wheel drive rod is fixed on the hub of the vehicle wheel, and the other end of the ratchet wheel drive rod is a free end, which can carry out reciprocated circular motion around the axle, and act to drive the wheelchair to move. The ratchet wheel drive rods are provided with elastic pieces for connection with a frame, and after acting, under drive of the elasticity of the elastic pieces, the ratchet wheel drive rods automatically reset to the initial position. Due to change of the force application mode and direction, a user can drive with arm force or elbow force, which is far powerful than the wrist force; meanwhile, due to the lever principle of the ratchet wheel drive rods capable of resetting automatically, the patient can relatively conveniently operate the wheelchair and can save abundant force, the patient with the handicapped lower limbs can move for a long distance conveniently, and thus the patient with the handicapped lower limbs is enabled to go out conveniently.

The invention discloses a barrel defect welding repair method which can improve the success rate of one-time repair welding and aims at avoiding inner wall repair welding. When repair welding is performed, the repair welding area of a barrel is regulated to the position of ten o'clock to eleven o'clock or the position of one o'clock to two o'clock, and then welding starts to be performed along the weld root near the inner side of the barrel to enable the projection area of the non-repair-welding-area on the barrel cross section to be roughly in the shape of a U; the U-shaped section is remained, and repair welding is completed layer by layer from inside to outside. When every a U-shaped section layer is welded, the welding bead must be overlapped from the thicker wall position to the center in the circumferential direction of the barrel in a symmetrical and circumferential mode, and each circumferential circle of the welding bead is divided into two half circles to complete welding in a climbing mode in the circumferential direction of the barrel. The stress concentration factors of the weld toe can be effectively reduced, welding shrinkage stress is reduced, the stress direction of the weld toe is changed, and therefore repeated cracking in the repair process and repair welding work after removing backing plates can be effectively avoided. The method is particularly suitable for defect repair of the barrel with the wall thickness more than 70 mm.

The invention relates to a self-energized up and down adjusting equipment for euphausia superba beam trawling. The equipment includes a pair of up and down adjusting devices symmetrically arranged ona beam. Each of the up and down adjusting devices includes a fairing, a protective cover, a propeller water current generator, a bidirectional driving motor, a rotary screw, a lifting and lowering connector and a fin. The protective cover is connected with the rear end of the fairing. The propeller water current generator is arranged inside the fairing. The bidirectional driving motor is driven bythe propeller water current generator. Two ends of the rotary screw are arranged on the protective cover, wherein the two ends are along the vertical direction and can rotate bidirectionally. The rotary screw is driven by the bidirectional driving motor. The lifting and lowering connector is arranged on the rotary screw in a thread structure. The front end of the fin is horizontal and both sidesof the fin are rotationally connected with the protective cover separately. The rear end of the fin is connected with the lifting and lowering connector and is driven to adjust the angle of the fin through the lifting and lowering movement of the lifting and lowering connector. The self-energized up and down adjusting equipment provide by the invention can realize the controllable and self-energized active lifting and lowering adjustment of the beam trawling.

The invention discloses a V-shaped turning tool with a reasonable structure and capability of bearing higher cutting force and a mounting tool post thereof. The turning tool comprises a tool holder, a regular V-shaped tool bit and a primary cutting edge and an auxiliary cutting edge which are positioned on the tool bit, wherein the primary cutting edge and the auxiliary cutting edge are intersected to form a tool nose, are formed by intersecting a front side, a rear side, an auxiliary front side and an auxiliary rear side respectively, and are positioned on the upper side of the tool bit; and the tool holder is joined with the lower side of the tool bit. The tool bit has a regular V shape; the primary cutting edge and the auxiliary cutting edge are symmetrically distributed on both sides of the tool bit; and the properties of the primary cutting edge and the auxiliary cutting edge can be mutually exchanged according different movement directions during turning, namely the two edges can be changed into the primary cutting edge. In the V-shaped turning tool, the tool post for mounting the V-shaped turning tool is vertically arranged on a machine tool, the vertical turning tool mounting way is to mount the turning tool along a cutting force direction, and the forced direction of the tool holder is changed, so that impact force during cutting and the vibration of tool holder during cutting wood are reduced.

The invention discloses a shock-absorbing steel structural joint member and belongs to the technical field of steel structures. The shock-absorbing steel structural joint member comprises a steel column, a steel channel, a cushion plate, a connecting plate and a truss chord. One end of the steel channel is connected with the steel column, and the other end of the steel channel is connected with the truss chord. The shock-absorbing steel structural joint member is characterized in that the steel channel sequentially penetrates the cushion plate and the connecting plate. The cushion plate is connected with the connecting plate through a bolt sleeved by a spring. The cushion plate is connected with the steel column through a tension spring. The steel channel is sleeved by a circular ring which is provided with a pull rope. The circular ring is connected with the steel column through a pull rope. A spring post is arranged between the connecting plate and the truss chord. One end of the spring post is connected with the connecting plate, and the other end of the spring post is connected with the truss chord. An L-shaped connecting strip is arranged between the bolt and the connecting plate. One end of the L-shaped connecting strip is connected with the bolt, and the other end of the L-shaped connecting strip is connected with the connecting plate. A spiral reinforcing rib is connected to the steel channel. The shock-absorbing steel structural joint member has good shock absorption; the bolt can be effectively protected so that the service life of the whole member is prolonged.

The invention provides a flexible energy absorption automobile anti-collision beam and belongs to the technical field of automobiles. The flexible energy absorption automobile anti-collision beam solves the problem that an existing anti-collision beam is poor in collision energy absorption effect. The flexible energy absorption automobile anti-collision beam comprises a front anti-collision board,a rear anti-collision board and multiple energy absorption pieces arranged between the front anti-collision board and the rear anti-collision board. The multiple energy absorption pieces are arrangedin the length direction of the anti-collision beam and are block bodies made of an elastic material. The front ends and the rear ends of the energy absorption pieces are provided with strip-shaped abutting faces. The multiple energy absorption pieces comprise the multiple first energy absorption pieces with the abutting faces transversely arranged and multiple second energy absorption pieces withthe abutting faces vertically arranged. The first energy absorption pieces and the second energy absorption pieces are arranged at intervals. The energy absorption pieces in the anti-collision beam can achieve transverse and longitudinal supporting and energy absorption effects on the anti-collision beam, the first energy absorption pieces and the second energy absorption pieces have the deformation recovery trend, so that large counter-force and the large counter-moment are generated, the stress direction is further changed, and two automobiles have a separating trend.

The invention discloses a bolt fastening tool suitable for use at night, which comprises a handle and a screwdriver head. A conversion head is arranged between the handle and the screwdriver head. The center line of the center line and the center axis of the handle are perpendicular to each other, and the surface of the conversion head provided with the screwdriver head is also provided with a miniature camera and a lighting lamp, and a display screen, a control chip, and a voice collection and recognition module are provided on the handle. The miniature camera, lighting lamp, display screen, and voice collection and recognition module are respectively connected with the control chip. The invention achieves the purpose of a fastening tool that can be easily repaired at night and can improve the repair efficiency; it solves the problem that it is difficult for people to operate the fixed screw when it is located at the bottom of the device or at a low position.

The invention provides an anti-deformation cutting device for a thin-wall steel pipe, and relates to the field of metal material machining. The anti-deformation cutting device for the thin-wall steel pipe comprises a supporting plate and a motor, wherein the motor is fixedly installed at the side of the supporting plate; a power mechanism is fixedly installed on the side face of the supporting plate; the outer surface of the power mechanism is sleeved with a rotating mechanism; the outer surface of the rotating mechanism is sleeved with a supporting sleeve; the supporting sleeve is fixedly connected with the supporting plate; and the front end of the rotating mechanism is in threaded connection with a cutting mechanism. According to the anti-deformation cutting device for the thin-wall steel pipe, under the transmission of a ratchet sleeve and an inserting stick, a threaded sleeve is matched to drive a connecting rod to rotate and move, so that a boss block extrudes a cutter to enable the cutter to extend towards the outer side and rotate, the thin-wall steel pipe can be cut from the interior, the position of a cutting point of the thin-wall steel pipe and the stress direction of the cutting point can be changed, an outer hoop sleeve is matched for supporting, and finally, the problem of deformation of the thin-wall steel pipe in the cutting process can be avoided.

The invention discloses a reversing sealing device of a low-temperature-resistant combined ring spacer sleeve valve rod forming valve. An electromagnetic pilot valve is arranged on one side of a valvebase, a piston is arranged inside an air inlet cavity, a valve body is arranged on one side of the valve base, a valve rod is arranged inside a working cavity, and one end of the piston is installedin a first inserting groove; a plurality of spacer sleeves are arranged on one side of the outer part of the valve rod, and a boss is arranged in the middle of one side of the two end surfaces of thespacer sleeves; a low-temperature-resistant combined ring is arranged between every two adjacent spacer sleeves, outer rings and lip edges are integrally formed, grooves matched with the bosses are formed between the outer rings and the lip edges, and one side of a valve body is provided with an end cover. According to the device, two end faces of the low-temperature-resistant combined ring are designed into groove structures correspondingly, and two end faces of the spacer sleeves are designed to be of boss structures; the running resistance at the moment of reversing the valve rod is reduced, meanwhile, the sealing performance of the electromagnetic reversing valve is not reduced after the reversing is completed, then the low-pressure starting and reversing performance of the electromagnetic reversing valve are further reduced, and the electric control reversing performance of the electromagnetic reversing valve is greatly improved.

The invention relates to a positioning technology for braided capacitors, and relates to an improved technology for electronic components, in particular to an improved technology for capacitors. Part of it is equipped with an inverted L-shaped curved head. The braid is divided into two front and rear. There are multiple positioning holes with equal distances in the middle of the braid. The lower parts of the two pins are inserted into the two braids at the back and front. between the bands, and the central axis of the capacitor is on the same line as the positioning hole. The invention can make the braided capacitors have the same height between the lead wire and the bottom, so as to ensure no deformation during handling and transportation, reduce defective products, reduce shipping costs, and reduce repair costs.

The invention discloses an ascending pipe type gas rising cap for removing fine particles in sintering flue gas towers. The ascending pipe type gas rising cap comprises a gas rising cap; the gas rising cap comprises a gas inlet, an arc-shaped blocking plate, a gas outlet, a barrel and a top plate; the gas inlet is formed in the bottom of the barrel, the arc-shaped blocking plate is arranged at thetop of the side wall of the barrel, the gas outlet is formed in the side wall of the barrel, the top plate is arranged at the top of the barrel, the gas rising cap is installed on a liquid collectingbottom plate, and the liquid collecting bottom plate is installed on the supporting frame. According to the ascending pipe type gas rising cap, the stress direction of vertical spraying liquid on thewaterproof blocking plate is changed; the problems of water leakage and liquid leakage of the gas lifting cap are solved; mixing of tower body spraying slurry with sieve plate layer and demister layer cleaning liquid can be prevented, the uniform distribution effect of the flue gas is improved, an effective gas-liquid distribution process can be formed, part of soluble salt and aerosol in the flue gas can be further removed, the stability and safety of system operation are improved, the treatment pressure of wet electric precipitation is reduced, and finally the ultralow emission standard isachieved.

The invention provides a TBCC air inlet adjusting mechanism design method based on an electric sliding door principle, and relates to a TBCC air inlet. The method comprises the steps that (1), it is achieved a door body horizontally moves along a specified path in the movement process; when the door body and the outer wall of a main air inlet are designed, a translation movement guide rail of the door body is designed, so that the door body is driven to horizontally move to a specified position when a gear-rack transmission mechanism is started through a motor; (2), the air-tightness characteristic of ventilation openings is ensured when the ventilation opening is closed; (3), in the door body opening process, continuous adjustment and optional starting and stopping are achieved; and (4), the whole adjusting mechanism is designed according to the outline of an inner wall of the main air inlet. The force applying direction of a driving piece is changed, and the movement performance and efficiency of the adjusting mechanism are improved. The problem is solved that when blades designed according to a louver principle are opened, the shaft parts block the ventilation openings of branch air passages, and many negative effects on air flow are brought. Convenience is brought to control; and it is achieved that in the opening and closing processes, the ventilation areas of the branch air passages are continuously adjusted, the door body is started and stopped at any time, and the ventilation openings are air-tight when closed.

The invention discloses a building decorative plate. The building decorative plate comprises a base plate and a panel, wherein a threaded hole is formed in the center of the base plate; inserting grooves are respectively formed in the two sides of the base plate; elastic sheets are respectively arranged at the top and the bottom of the base plate; the bottom of each elastic sheet is fixedly connected with the base plate; the top of each elastic sheet is in clearance fit with the base plate; a first inserting sheet is fixed to the top of each elastic sheet; second inserting sheets are arrangedat the bottom surface of the panel; a through hole is formed in each second inserting sheet; each second inserting sheet penetrates through the through hole in the corresponding second inserting sheetof the panel adjacent to the second inserting sheet to be matched with the inserting groove in the corresponding base plate adjacent to the second inserting sheet in an inserted mode; grooves for being matched with the first inserting sheets are formed in the bottom surface of the panel; an adjusting bolt in press fit with the corresponding first inserting sheet is in threaded connection with theouter edge of each groove; a first through hole is formed in the center of the panel; and a fixing bolt penetrates through the first through hole to be connected with the threaded hole. The buildingdecorative plate can overcome the defects in the prior art, simplify the mounting process of the decorative plate and facilitate the adjustment of the decorative plate.