108results about How to "Big propulsion" patented technology

A track rail is formed in a channel-like configuration while having a guide passage for sliders. A table structure that moves within the guide passage includes:a pair of sliders that move forwards and backwards within the guide passage; and a connecting top board connecting those sliders to each other with a predetermined interval therebetween and provided with a mounting surface for a movable member. An armature constituting a linear motor is received between the pair of sliders, and field magnets constituting the linear motor are arranged in the track rail so as to face the guide passage. The armature and the field magnets, which constitute the linear motor, are completely integrated with the table structure and the track rail, which constitute a linear guide, and are entirely contained inside the linear guide.

The invention discloses a printing head for 3D printing. The printing head comprises a machine shell, a screw extruding system, an installation seat, barrels, valve needles and spray nozzles. A drive system is arranged at one end of the machine shell. The screw extruding system is arranged in the machine shell and is composed of at least two screws which are embedded internally and externally, and at least one screw is driven by the drive system. The installation seat is mounted below the screw extruding system. One or more inner holes are distributed in the installation seat in the axial direction, and a discharge outlet is formed in the top or the side face of each inner hole. The barrels are mounted in all the inner holes of the installation seat correspondingly, the barrels extend out from one end of the installation seat, and barrel feeding openings are formed in the top ends of the barrels. Valve cavities are formed in the barrels. The valve needles penetrate through all the valve cavities of the barrels to be mounted on the installation seat, and the gaps between the valve needles and the valve cavities form discharging channels communicating with the feeding openings of the barrels. The spray nozzles are arranged at the tail ends of all the barrels. The printing head for 3D printing is light in weight, small in size, capable of achieving high printing precision and printing speed, novel in design, high in practicability and high in economic value.

The invention relates to a bone filler conveying sleeve which comprises a conveying tube, a conveying tube handle and a sheath core. A flexible tube is arranged at a far end of the conveying tube, a rigid tube is arranged at a near end of the conveying tube, a near end of the flexible tube is fixedly connected with a far end of the rigid tube, a near end of the rigid tube is fixedly connected with the conveying tube handle, the sheath core is slidably inserted into the conveying tube, a near end of the sheath core is fixedly connected with an adjusting handle, and a far end of the sheath core is bent to form a fixed angle which is a fixed bent section of the sheath core. The far end of the conveying tube of the bone filler conveying sleeve is provided with the flexible tube, and the sheath core with the fixed angle formed at the far end is inserted into the conveying tube, so that the purpose of controlling the bending degree of the far end of the conveying tube can be achieved by controlling the relative positions of the fixed bent section of the sheath core and the flexible tube at the far end of the conveying tube, and the bone filler conveying sleeve is convenient to operate, simple in structure and low in cost.

The invention provides a single-phase cylindrical linear vibration motor, which comprises a motor stator, a motor rotor and a bearing, wherein the motor stator comprises three U-shaped stator cores, two non-magnetic circular rings and three concentric winding coils; the motor rotor comprises a rotor sleeve, four rotor teeth and five permanent magnet rings; the motor stator part and the motor rotor part are in clearance fit, namely the three concentric winding coils are horizontally arranged; U ends point to the bearing; and the concentric winding coils and the rotor teeth are oppositely arranged. According to the single-phase cylindrical linear vibration motor provided by the invention, a rotor yoke part is omitted; the motor manufacturing process is simplified; the slot utilization rate is improved; the propulsive force of the rotor is increased; the sealing property is good; the structure is simple and firm; the end effect and the normal magnetic pull force of the motor are removed; the motor reliability is high; the requirements of sports occasions of reciprocating linear vibration can be met; and the single-phase cylindrical linear vibration motor is suitable for popularization and application in industrial linear vibration.

The invention provides a pneumatic wagon drill which comprises a travel mechanism, a feed rotary mechanism, a support upright column and an operating and control table, wherein the operating and control table and the support upright column are arranged on the travel mechanism, the feed rotary mechanism is arranged on the support upright column through an angle adjusting mechanism and a moving mechanism, the support upright column is arranged on the travel mechanism through a spring and can adjust an inclination angle of the support upright column through an inclination angle adjusting mechanism, and the feed rotary mechanism can move up and down along the support upright column through the moving mechanism and rotate in a working face through the angle adjusting mechanism. Owing to the technical scheme provided by the invention, the feed rotary mechanism of the pneumatic wagon drill can move rapidly with high efficiency, the jacking force and the drilling force are supported on the ground, the load on the travel mechanism is reduced, the service life of the pneumatic wagon drill is increased, and the manufacturing cost is reduced; and besides, the purpose of remotely controlling the drilling operation is achieved, the working environment is greatly improved, and the operating safety of workers is improved.

The invention relates to a single-phase cylindrical switch-reluctance linear motor. The single-phase cylindrical switch-reluctance linear motor comprises a motor stator part, a motor rotor part and a linear bearing, wherein the motor stator part comprises a stator sleeve and a winding coil, an annular stator groove is formed in the stator sleeve, two planes of the stator sleeve are stator teeth, arc-shaped grooves are formed in the two stator teeth, one cambered-surface plate of the stator sleeve is a stator yoke part, and the stator teeth and the stator yoke part are formed in an integrating manner; the motor rotor part comprises three rotor tooth circular rings and a rotor yoke sleeve. According to the single-phase cylindrical switch-reluctance linear motor, the manufacturing process is simplified, and the utilization rate of a groove is improved; furthermore, the propelling force of a rotor is increased, the sealing performance is good, the structure is simple and firm, an end effect and a normal magnetic pull force of the motor are eliminated, the reliability of the motor is high, and requirements on a movement location of reciprocating linear vibration can be met; the single-phase cylindrical switch-reluctance linear motor is suitable for popularizing industrial linear oscillation.

The invention discloses a cable laying apparatus. According to the cable laying apparatus, the laying efficiency can be improved, and complete automation of cable laying is realized; propulsion is performed by employing propulsion belts so that the propulsive force is large; a boosting wheel is provided, and the boosting wheel is provided with fine needles so that the wall-holding force of the boosting wheel during rolling can be guaranteed, the propulsion of the propulsion belts is guaranteed, and the propulsion effect is greatly improved; and the applicability is high, the requirement of diameters of various laying pipelines can be met, the rolling speed of the boosting wheel and the speed of the propulsion belts can be consistent during usage, and long-distance cable laying can be wellrealized.

A water jet propulsion watercraft includes a pair of jet propulsion devices arranged right and left of a hull centerline. Each jet propulsion device includes a jetting unit arranged to jet water, a deflector supported on the hull and arranged to rotate to right and left, the deflector including a forward drive jet port and a reverse drive jet port. Each jet propulsion device includes a bucket arranged to change between a forward drive position and a reverse drive position. The bucket includes a reflecting surface arranged to reflect the water jetted from the forward drive jet port when the bucket is at the reverse drive position, and an auxiliary nozzle including an entrance opened to the reflecting surface and arranged to jet water introduced into the entrance along a hull right/left direction. The entrance of the auxiliary nozzle is spaced away from the forward drive jet port in the hull right/left direction and does not oppose the forward drive jet port in a state where the bucket is arranged at the reverse drive position and the deflector is arranged at the straight drive position.

The invention discloses a bionic underwater vehicle flapping wing propulsion device. An underwater vehicle comprises a drive motor assembly, a transmission gear set, a ball screw, a steering engine, asteering shaft, an adaptive under-actuated flexible wing framework, a single-sliding block and double-rocker mechanism, and a fixing seat, the drive motor assembly, the ball screw and the fixing seatare connected with an underwater vehicle body separately, the drive motor assembly is composed of a motor, a speed reducer and an encoder, the ball screw is composed of a screw rod, a screw nut and ascrew fixing seat, and an output shaft of the speed reducer is connected with a driving gear of the transmission gear set; a driven gear of the transmission gear set is connected with the screw rod of the ball screw, and the motor drives the screw rod to rotate through the transmission gear set. The bionic underwater vehicle flapping wing propulsion device has the advantages that the integral structure is provided with a front end swing and a rear end swing, the whole device has two degrees of freedom, and propulsion, turning, floating, submergence and other movements of the underwater vehicle can be achieved.

The invention relates to a capsule endoscope based on IPMC (ionic polymer metal composite) driving and a driving method thereof. The capsule endoscope based on the IPMC driving comprises a capsule front cover, a capsule main body structure and a capsule tail structure, wherein a plurality of slice IPMCs are arranged on the outer side of the capsule main body structure and on the capsule tail structure along the axial direction of a capsule. Under normal moving status of the capsule endoscope based on the IPMC driving, the slice IPMCs on the outer side of the capsule main body structure can be folded along the capsule, and are unfolded outwards after control signals are applied onto the slice IPMCs on the outer side of the capsule main body structure, and thereby can be used to achieve a deceleration or clamping function. When the slice IPMCs on the outer side of the capsule main body structure are respectively controlled, a posture adjustment for the capsule can be achieved. One or two IPMCs can be installed at the tail end of the capsule, and are used to achieve an active driving function. The capsule endoscope based on the IPMC driving and the driving method thereof use IPMC artificial muscle smart materials good in biocompatibility to achieve movement and posture control of the capsule endoscope based on the IPMC driving in a human body.

The invention discloses a bionic fishtail structure based on PVC gel artificial muscle driving. The bionic fishtail structure comprises a multi-joint bionic fishtail framework, a plurality of PVC gelartificial muscle driving modules, a tail fin, a tail end, a skin and other accessories. The bionic fishtail framework is composed of a pre-pressing block, a joint shaft and an installation groove. Each PVC gel artificial muscle driving module is composed of a plurality of PVC gel driving units, wherein an anode, a PVC gel film and a cathode form one PVC gel driving unit; the two PVC gel driving modules and the bionic fishtail skeleton form a driving joint. Based on the structure, bending deformation is driven in a left-right alternating mode, and therefore swing is generated.

A flipper is provided. The flipper includes a pocket, a blade and a strengthening structure. The pocket is for accommodating the foot of the user. The blade extends forwards from the pocket, and the strengthening structure is detachably disposed at the blade and extends to reach the front edge of the blade. The flexural strength of the strengthening structure is larger than that of the blade to constrain the swing angle of the blade relative to the pocket. By using the strengthening structure to constrain the swing angle of the blade, the flipper can not only provide a larger propulsion in the down-kicking state, but also decrease the resistance of water in the up-kicking state.

The invention discloses submersible folding type sonar equipment, which comprises a hull body, double-acting twin-screw propellers, and a plurality of sonar detectors. The periphery of the front end of the hull body is provided with a plurality of hemispherical coupled base blocks. The hemispherical coupled base blocks are in coupled connection with sonar folding arms. The outer ends of the sonar folding arms are fixedly provided with sonar acoustic protection tubes and the sonar detectors are arranged inside the sonar acoustic protection tubes. The hull body is in coupled connection with a hydraulic extendable conveyor belt A and folding power arms. The upper end of the hydraulic extendable conveyor belt A is in coupled connection with the middle-upper end of the folding power arms. The upper ends of the folding power arms are in coupled connection with folding connection arms. The folding connection arms are in coupled connection with the sonar folding arms. The two sides of the front end of the hull body are respectively provided with a plurality of double-acting twin-screw propellers. The upper and lower parts of the rear end of the hull body are respectively provided with a plurality of double-acting twin-screw propellers. According to the technical scheme of the invention, the influence of submersible noises on the folding type sonar equipment during the detection process is reduced to a minimum level, so that clearer and more accurate data can be obtained. During the retracting process, the navigational speed and the maneuverability of the submersible are not influenced at all.

The invention relates to an efficient ducted propeller which comprises a duct and paddles. The efficient ducted propeller is characterized in that a groove is formed in the inner surface of the duct, and the position of the groove corresponds to the periphery positions of the tail ends of the paddles. Compared with an existing ducted propeller, according to the efficient ducted propeller, due to the fact that the gaps between the tail ends of the paddles and the inner wall of the duct are enlarged, the groove with a certain gradient is formed, the probability that sundries are clamped between the duct and the paddles is reduced, the propulsive force of the propeller is enlarged, and therefore the working efficiency of the propeller is improved.

The invention provides an underwater propeller, and belongs to the field of underwater power propelling equipment. The underwater propeller comprises a shell, a driving component, a driving shaft, a first impeller and a second impeller; a fluid channel and a containing cavity are arranged in the shell, the fluid channel comprises a water inlet and a water outlet; a pressurization area is arrangedin the fluid channel, and the inner diameter of the pressurization area is decreased in the drainage direction; the driving shaft is connected with the driving component; the driving component is arranged in the containing cavity; the first impeller is fixedly connected to the driving shaft, the second impeller is rotatably connected to the driving shaft, the first impeller is located at the upstream position of the second impeller, and the second impeller is located in the pressurization area. The driving component drives the first impeller to rotate through the driving shaft, and the first impeller enables the water flow to be pushed into the pressurization area; the second impeller located in the pressurization area accelerates water flow and sprays the water flow out of the water outlet, so that the propelling power is increased, the propelling power of the underwater propeller is improved, and the driving effect is improved.

The invention relates to agricultural machinery, in particular to a design method and a device applicable to a corn sheller; the device comprises five parts, i.e. power transmission mechanisms, a threshing mechanism, a conveying mechanism, an impurity removing mechanism and a frame, and is characterized in that a drum of the threshing mechanism is provided with a screen hole, and the longitudinal direction of the screen hole is longer than the horizontal direction thereof; the power transmission mechanisms are arranged on both sides of the frame; the conveying mechanism comprises a pushing device and an elevating device, the pushing device is arranged on the lower side of the frame, the elevating device is arranged on one side of the frame, and the threshing mechanism and the impurity removing mechanism are fixed on the frame; each power transmission mechanism comprises a power access shaft head and a power access wheel; and when the power access shaft head serves as a power access point, the power access shaft head is connected with a power output PTO, a diesel engine or a motor in a transmission way. The invention not only has high efficiency and high purification to dry corn with skin or wet corn with skin, but also has simple structure, and can be combined with any power source.

The present invention relates to a special travelling device for a water surface pollution floater cleaning robot. The special travelling device comprises a frame, a spiral propelling device, a steering device, a power supplementary device, a filter screen, inflators and fixing buckles. The spiral propelling device is positioned at the bottom of the middle of the frame, the spiral propelling device is simple and convenient to control, propelling force is large, and the propelling effect is good. The steering device is positioned at the rear side end of the frame, the steering effect of the steering device is achieved due to the fact that three steering pawls rotate in the same direction, and steering is fast and flexible. The power supplementary device is positioned right above the steering device, and when the weight of water surface pollution floaters born by the special travelling device is too large or movement power is insufficient, the effect of secondary supplementation of the movement forward power can be achieved by the power supplementary device. The filter screen is installed inside an upper layer of a semi-cylindrical housing structure of the frame, the inflators are symmetrically positioned at left and right sides of the frame respectively, and the inflators and the frame are connected through the fixing buckles.

The invention discloses a soft seabed mud spiral propulsion vehicle and a traveling method thereof. A novel propulsion device capable of traveling in soft seabed mud is required. According to the invention, four spiral propellers are arranged at the left front, right front, left rear and right rear positions of the bottom of a frame; the spiral propellers comprise spiral blades, propeller shells, motors, planetary reducers and shaft sealing elements; one end of each propeller shell and a supporting shaft fixed on the end face of a motor seat form a revolute pair, the other end of the propeller shell and a motor output shaft form a revolute pair, and the supporting shaft is fixed with the frame; the propeller shells are driven by the motors; a generator supplies power to the motors by umbilical cables; a control cabinet transmits a control signal to the motors by virtue of the umbilical cables; the spiral blades are fixed outside the propeller shells; the shaft sealing elements are arranged between the supporting shaft fixed on the end face of the motor seat and the frame and between the motor output shaft and the frame. The vehicle disclosed by the invention is capable of overcoming widely distributed seabed mud resistance, freely moving forwards, retreating, steering, and transversely traveling to the left and the right.