63results about How to "Adjustable center of gravity" patented technology

A golf club head includes a body having a striking plate and an assembling portion, a first elastic weight member including an elastic matrix and a metal powder mixed in the elastic matrix, and a second elastic weight member including an elastic matrix and a metal powder mixed in the elastic matrix of the second elastic weight member. The second elastic weight member includes a specific density and an elastic coefficient different from those of the first elastic weight member. The first elastic weight member and the second elastic weight member are mounted in the assembling portion of the body to form a golf club head. The first elastic weight member and the second elastic weight member adjust a center of gravity of the golf club head and provide an elastic vibration-absorbing effect.

A method for the manufacture of a projectile for small-bore weapons ammunition comprising the steps of producing a plurality of compacts from a mixture of a heavy metal powder and a light metal powder at room temperature, and without further treatment of the compacts, introducing the compacts into a metal jacket one at a time, including pressing each compact into the jacket with a pressure sufficient to ensure substantially complete filling of a respective portion of the jacket by each compact before introducing a further compact into the jacket. The compacts fill less that the entire volume of the jacket, leaving a portion of the jacket void of compacts. Prior to the pressing of the last of the compacts introduced into the jacket, a disc having an outer diameter substantially equal to the internal diameter of said jacket adjacent the open end thereof is introduced into the jacket. Following pressing the last introduced compact and the separator dics, that portion of the jacket adjacent its open end is infolded toward the longitudinal centerline of the jacket to at least substantially close the open end of the jacket.A unique projectile and a round of ammunition formed with the projectile are disclosed.

The invention discloses a novel modular bionic underwater robot based on full-flexible pectoral fins. A hydrodynamic module of eagle ray pectoral fins is analyzed, and motion of the pectoral fins is decomposed into vertical bending flapping in the vertical body longitudinal axis direction and twisting motion taking the vertical body longitudinal axis direction as the axis. The whole robot comprises a sectioned main body, a left flexible pectoral fin module, a right flexible pectoral fin module and a tail fin module, and a group module is formed by connecting fin connecting parts; the left and right flexible pectoral fin modules are identical in structure and are in mirror symmetry; a pectoral fin framework adopts a structure similar to that of a plane rib, a symmetrical airfoil is taken as the basic shape, and the pectoral fin modules with streamline sections are spliced through serial connection of straight pectoral fin trunk bones and steel wires. A large steering engine and a small steering engine are arranged at the root and the tip of each pectoral fin to control vertical flapping and twisting motion of each pectoral fin. Through adjustment of motion amplitude, motion frequency and phase difference of the two steering engines of each pectoral fin, different pectoral fin motion postures can be realized, and fish body motion can be finished better.

The invention discloses a unicycle robot with the function of self-balancing realization. The unicycle robot comprises a wireless module, a gyroscope, a motion controller, and a servo driver. The servo driver includes an oscillating bar servo driver, a waist plate servo driver, a wheel servo driver, an oscillating bar, a waist plate, and a wheel; and the oscillating bar servo driver, the waist plate servo driver, and the wheel servo driver are respectively connected with the motion controller by leads. The gyroscope and an oscillating bar encoder collect a unicycle body gesture; a signal is fed back to the motion controller; the signal is processed by the control program and thus a control instruction is sent to the oscillating bar servo driver, the waist plate servo driver, and the wheel servo driver, so that the oscillating bar, the waist plate, and the wheel are controlled to rotate to adjust and control the gesture of the robot. According to the invention, the rotation inertia of the oscillating bar and the waist plate can be adjusted by an on-line way; the adjusting capability of the balancing and turning of the unicycle robot can be enhanced; and the aadaptability to the dynamic complex environment, of the robot can be improved.

A combination bat includes a wood body and a tubular core. The wood body has a handle, a barrel extending from one end of the handle, and an axial hole. The tubular core is made of fiber reinforced plastic materials and axially received inside the axial hole of the wood body. A shock-absorbing member is inserted inside the tubular core.

A golf club head weight-adjusting structure disposed perpendicularly at a rear position of the backside of a ball-striking plate comprises a containing body, an adjusting module and a cover panel. The containing body is extended from the rear of the backside of the ball-striking plate and forms a containing groove, and both sides of the containing groove include first and second slots. The adjusting module includes a weight member with its center screwed with the screw rod and pivotally coupled to the first and second slots. The screw rod includes a rotary element. A cover panel seals the containing groove of the containing body. With these simple components, the adjusting module increases the weight at the rear of the head to adjust and shift the center of gravity of the head backward and maintain the best central position when the adjusting module is installed to different golf club heads.

The invention discloses a three-foot stair climbing device for helping the elder and the disabled in a corridor and an implementing method of the three-foot stair climbing device. A gravity adjusting device, a battery module and a control system are arranged in a working table, and according to the gravity adjusting device, a stepping motor is adopted to drive a lead screw to adjust the front-back position, relative to the working table, of a mass block, so that the stability of the gravity of the device in the stair climbing process is ensured; according to a front-back and up-down telescopic device, three main electric push rods vertically distributed are adopted so that three feet can ascend or descend, and two auxiliary electric push rods horizontally arranged are adopted so that the three feet can move horizontally in the stair climbing process; according to a driving traveling device, a rear wheel hub motor is adopted for driving, front wheels and middle wheels are steering wheels, a ratchet mechanism capable of being opened or closed is arranged on each wheel, on one hand, the safety of the stair climbing process is ensured, on the other hand, ratchet reverse locking is used for cooperating with the auxiliary electric push rods to achieve different moving combinations of the three feet, the three-foot stair climbing device can assist in stair climbing and can be used for riding instead of walking on the flat ground, the posture is horizontal in the stair climbing process, the gravity of the device is adjustable, three-foot stair climbing device is stable and reliable, and the wheels have the ratchet reverse locking function and are good in safety.

A vacuum cleaner includes a host machine (1), a connection pipe (2) and a floor brush (3); the host machine, the connection pipe and the floor brush are detachably connected; a connection sequence of the host machine and the connection pipe can be changed as needed so as to from two use states: in a first use state, the host machine, the connection pipe and the floor brush are connected successively; and in a second use state, the connection pipe, the host machine and the floor brush are connected successively. According to the vacuum cleaner, all the parts of the vacuum cleaner are detachable and can from various free combination connection manners; various structure combinations are achieved on one type of the vacuum cleaner, the center of gravity of the vacuum cleaner body can be adjusted, and then stable vertical storage can be achieved, and cleaning of high positions is facilitated; and the vacuum cleaner is flexible and variable in use.

A combination bat includes a wood body and a tubular core. The wood body has a handle, a barrel extending from one end of the handle, and an axial hole. The tubular core is made of fiber reinforced plastic materials and axially received inside the axial hole of the wood body. A shock-absorbing member is inserted inside the tubular core.

A putter head includes a body and a light insert. The body includes a face portion, two mass portions, and a connecting portion. The face portion is located on a front side of the body, the mass portions are located on two sides of the body, and the connecting portion is formed between the mass portions for connecting the mass portions, with a compartment being defined between the mass portion and the connecting portion. The light insert is securely mounted in the compartment of the body. The light insert includes at least one aiming mark on a top face thereof. Further, the club head has a center of gravity positioned within the light insert.

An apparatus for moving the center of gravity of a robot, and a system and method using the apparatus are provided. The apparatus includes a weight conveyor with a conveyed weight weighing a predetermined amount and disposed within the main body of the robot. The conveyed weight is conveyed in a predetermined direction to move the center of gravity of the robot, thus allowing a non-driven caster of the robot to surmount obstacles in its path and not become stuck while the robot is moving.

An apparatus for moving the center of gravity of a robot, and a system and method using the apparatus are provided. The apparatus includes a weight conveyor with a conveyed weight weighing a predetermined amount and disposed within the main body of the robot. The conveyed weight is conveyed in a predetermined direction to move the center of gravity of the robot, thus allowing a non-driven caster of the robot to surmount obstacles in its path and not become stuck while the robot is moving.

The invention discloses a motor-driven three degrees of freedom removable dynamic race game motion simulator. The motor-driven three degrees of freedom removable dynamic race game motion simulator is characterized by comprising a fixed base, a rolling mechanism, a side swinging mechanism and a pitching mechanism; the fixed base comprises two trapezoid connecting blocks, two U-shaped steel pipes and a display installation frame; two ends of the two U-shaped steel pipes are connected through the trapezoid connecting blocks; the display installation frame is arranged on one trapezoid connecting block. The motor-driven three degrees of freedom removable dynamic race game motion simulator has the advantages of being convenient to assemble and disassemble and convenient to convey and store; being simple in integral structure, easy to machine, adjustable in center of gravity and light in weight; being simple and practical in driving mode and green and environmental friendly due to the facts that a motor is served as a power source and a screw and a connecting rod are served as a driving mechanism; achieving movement in three rotational degrees of freedom directions of rolling, side swinging and pitching and being good in linkage effect and real in simulation effect.

The invention discloses a multifunctional glasses frame, which comprises metal glasses legs, a frame, nose bridge racks and ear hanging casing pipes. One ends of the metal glasses legs are equipped with middle metal sheets, first metal sheets and second sheet metals. Each first metal sheet is provided with a first hook, each second metal sheet is provided with a second hook, and each middle metal sheet is provided with a middle hook. The frame is equipped with first gaps in adaptive flexible connection with the first hooks, second gaps in adaptive flexible connection with the second hooks, and middle through holes in adaptive flexible connection with the middle hooks. According to the multifunctional glasses frame provided by the invention, at least three different stable positions are disposed between the metal glasses legs and the frame, thus realizing 0-180 degree angular variation between the frame and metal glasses legs, and allowing expansion of the metal mirror legs over a traditional normal opening degree. And under the action of flexible nose pads, the glasses can be fixed on the wearer's nose bridge bone after wearing. As counterweight members, the ear hanging casing pipes can adjust the barycenter of glasses and improve barycenter balance of glasses.

A method of fabricating a bow stick includes winding a prepreg, in which a fiber is impregnated with a resin, on a mandrel with a diameter gradually decreasing toward a distal end, setting a semi-fabricated product, in which the prepreg is wound on the mandrel, into a mold and molding the semi-fabricated product in a shape corresponding to a cavity formed between the mold and the mandrel by heating and pressurizing the semi-fabricated product in the mold, and taking out the mandrel from a molded product molded in the shape corresponding to the cavity to acquire a long and hollow stick body. When adjusting at least one of a weight distribution, a center of gravity, and a weight of the stick body, the volume of the cavity is changed using the mandrel of which the diameter or the diameter variation is gradually changed in an axis direction.

The invention discloses an automatic cable conveying and straightening device. The device comprises a worktable, an inlet guide device, two sets of conveyors and two sets of straighteners; the conveyors comprise inlet conveyors and outlet conveyors with the same structures; the straighteners comprise horizontal straighteners and vertical straighteners with the same structures and perpendicular toeach other; the inlet guide device, the inlet conveyors, the horizontal straighteners, the vertical straighteners and the outlet conveyors are fixed on the worktable in sequence from front to back; and cables pass through the inlet guide device, the inlet conveyors, the horizontal straighteners and the vertical straighteners in sequence, and extend out from the outlet conveyors. Through arrangement of the inlet conveyors, the outlet conveyors, the horizontal straighteners and the vertical straighteners, the cable straightening and conveying automation can be achieved, so that the whole processis high in efficiency, no manpower is needed, and the straightening precision is high.

The invention relates to a branch and leaf collecting mechanical arm based on an unmanned aerial vehicle. The whole mechanical arm is installed on the unmanned aerial vehicle through a carrying platform, and therefore the requirement for collecting treetop branches and leaves of high and big trees can be met through the unmanned aerial vehicle. A first balance weight and the movable second balanceweight form a structure which can adjust the gravity center of the whole mechanical arm. When the second balance weight is moved, the gravity center of the whole mechanical arm can be adjusted, the gravity center of the mechanical arm is basically located under the unmanned aerial vehicle, and the control complex degree of the posture balance of the unmanned aerial vehicle is lowered. A first power source drives a cam to rotate, when the cam rotates, a drive rod is used for driving a driven rod to act, and therefore a second claw part is driven to rotate relative to a first claw part througha hinge rod, a second blade is driven to rotate relative to a first blade through a hinge rod, the first claw part and the second claw part are used for clamping branch tips, and the first blade and the second blade are used for shearing branches and leaves.

The invention discloses a large-stroke high-precision Z-axis worktable with a novel structure. The worktable comprises a base, a first support, a second support, a movable supporting rod, a worktable body and a precise movable positioning table. The first support and the second support are arranged on the base, the movable supporting rod is arranged on the first support in an upward and downward movable mode, the movable supporting rod is fixedly provided with a grating ruler extending vertically, the first support is provided with a grating reading head, the precise movable positioning table is arranged on the second support in an upward and downward movable mode, the lower end of the movable supporting rod is fixedly connected with the precise movable positioning table, and a drive device is arranged on the precise movable positioning table. Due to the fact that the center of the worktable body, the center of the grating ruler, the center of the grating reading head and the center of the precise movable positioning table are located on the same line, zero abbe errors of a system can be achieved theoretically, abbe errors of the system are reduced to the largest extent, and micro-nano measuring and micro-nano processing requirements can be met.

The invention discloses a water jet propulsion type underwater spherical heavy-load robot. A spherical shell is divided into an upper power cabin and a lower working cabin through a middle horizontalsealing baffle. A water jet propulsion system is mounted in the upper power cabin; the system comprises a motor, a high-pressure water pump and nozzles which are arranged on the horizontal sealing baffle, the nozzles are uniformly distributed at four corners of the edge part of the horizontal sealing baffle and the nozzles hermetically extend out of the spherical shell; the motor drives and controls the high-pressure water pump to suck external seawater and spray the external seawater through the nozzles, the course and navigational speed of the underwater spherical heavy-load robot are adjustable by controlling the nozzles in different directions to spray water for propulsion, an observation cabin and a ballast water cabin are arranged in the lower working cabin, and the observation cabinis used for observing the seabed environment and transmitting the seabed environment to an offshore console through radio. The volumetric hydraulic pump is adopted to drive medium-high pressure waterjet propulsion, so that the bearing capacity of the underwater robot in operation is greatly improved, and the maneuvering characteristics of the underwater robot are improved through vectorized propulsion of the nozzle.

The invention discloses a swing arm type crane barge for mounting wind power equipment, which is characterized by comprising a barge body, wherein the center of the barge body is provided with a portal arm support; the portal arm support is composed of a left and a right truss upright posts, a truss cross beam and a pulley cross beam; the lower ends of the left and the right truss upright posts are hinged with a hinged support on the barge body; the upper parts of the left and the right truss upright posts are respectively connected with a front and a back decks of the barge body through a front and a back radius-changing mechanisms; the lower parts of the left and the right truss upright posts are provided with two sets of hoisting mechanisms, including winding machines; the hoisting mechanisms are provided with wire ropes; the wire ropes bypass two sets of fixed pulley blocks in the pulley cross beam to drive two sets of hook pulley blocks to vertically move; and both sides of the barge body are respectively provided with an impeller-type thruster and a skid mounted thruster. The invention has the characteristics of light weight and light draught, can be aground, and is suitablefor operation and construction in intertidal zones.

The invention discloses an anti-shock self-stabilizing new energy automobile battery device. The anti-shock self-stabilizing new energy automobile battery device comprises a damping base; a movable cavity is formed in the middle of the damping base body. X-direction sliding cavities are symmetrically formed in the upper wall body and the lower wall body of the movable cavity in a communicating mode; an X-direction sliding body is arranged in the X-direction sliding cavity in a left-right sliding manner; a Y-direction hydraulic cavity with an inward opening is formed in the inner side of the X-direction sliding body; turning sensors are arranged in the movable cavity in a bilateral symmetry manner; by using the device, the device can be used for damping a battery; the damage of a bumpy roadsurface to the battery is reduced; the device can convert energy generated in the starting and braking processes of a new energy automobile into electric energy, the electric energy is supplemented into the battery, the driving kilometers of the automobile are prolonged, part of energy of the automobile in the left-right direction of the bumpy road surface can be absorbed, when the automobile turns, the gravity center position of the battery can be adjusted, and the controllability of the automobile is improved.

The invention discloses a transverse vibration clamp adjustable in gravity center and angle. The transverse vibration clamp is formed by connecting a base, a connection plate, a bolt and a nut, wherein the bolt and the nut are matched; the base is of an inverted-T-shaped structure from the side view, a sensor installation hole and three kidney-shaped parallel vibration table installation holes distributed in a triangular mode are formed in the round bottom surface of the base, and the vertical wall surface of the base is perpendicular to the round bottom surface; the connection plate is connected to the vertical wall surface through the bolt and the nut, can rotate by 360 degrees and can be adjusted, and a tested sensor is fixedly installed on and connected to the surface of the connection plate. By applying the clamp, vibration tests can be realized in any direction of transverse 360 degrees; the gravity center can be adjusted, and the universality and the stability are high; the resonant frequency is high (the first resonant frequency is 7.8 kHz) and is higher than the upper suitable frequency limit (5 kHz) in GB / T 13823.8; the physical design is optimized, the transverse vibration ratio is smaller than 1.6%, the vibration amplification ratio (30 Hz) is smaller than 0.02%, and the vibration amplification ratio (160 Hz) is smaller than 0.3%; a hexagonal counter bore bolt is installed and fixed in the connection plate, and the torque is convenient to control.

The invention relates to a hollow sandwich structure and a manufacture method thereof. The inner part of the sandwich structure is a hollow cavity or is composed of the hollow cavity and a solid structure, and reinforcing ribs are arranged in the hollow cavity. The hollow cavity is arranged between an upper panel and a lower panel of the sandwich structure, and the reinforcing ribs comprise an upper panel reinforcing rib arranged on the upper panel and a lower panel reinforcing rib arranged on the lower panel. In the production process of the hollow sandwich structure, the reinforcing rib structures in the upper panel and the lower panel are respectively processed, then diffusion welding is carried out, and finally the exterior outline of the hollow sandwich structure is processed to complete the manufacture of the hollow sandwich structure. The technical process of the sandwich structure can be simplified, the rate of finished products is increased, and the production cost is reduced. The surface quality is good, no weak connection exists, the center of gravity of a product can be adjusted, and the stiffness of the local position can be increased. The strength and the stiffness of the product are increased, and meanwhile, the quality of the product is not influenced.

The invention relates to a three-shaft vibrating screen with a buffering storage hopper. The three-shaft vibrating screen comprises a screen frame, a supporting base, spring sets, a balance weight box and balance weight mechanisms arranged in the balance weight box. Three balance weight mechanisms are arranged in the balance weight box, and each balance weight mechanism comprises a wallboard base, wherein a bearing is arranged on the outer side wall of the wallboard base and sleeved with a bearing box, a transmission shaft is inserted in the hollow part in the middle of the wallboard base, the bearing box and the transmission shaft are connected through an end cover to conduct transmission, a balance weight block is arranged on the bearing box, balance weight pins are arranged between the balance weight block and the bearing box, the outmost circle of the bearing box is sleeved with a gear ring, and the balance weight box is fixed to the side wall of the screen frame. The spring sets are fixed between the supporting base and the screen frame, a screen shoe is arranged in the screen frame, the screen shoe is coated, or sleeved or clamped with buffering strips, and a discharging base is arranged on the right edge of the screen frame and is connected with the storage hopper. The three-shaft vibrating screen at least has the advantages that the gravity center and weight of the balance weight whole can be adjusted, materials can be screened conveniently, and the screen shoe is resistant to abrasion and long in service life.

The present invention provides a steel strip reeling machine comprising a telescopic sleeve, a retaining sleeve, a push-pull rod, a hydraulic cylinder I, a hydraulic cylinder II, a connecting seat anda lower casing, wherein the hydraulic cylinder I is mounted on the left end surface of a main shaft, the push-pull rod is assembled in the main shaft, the left end of the push-pull rod is connected to the hydraulic cylinder I, the right end of the push-pull rod is installed at the middle position of the left end surface of the retaining sleeve, and the retaining sleeve is threadedly mounted on the right end surface of the telescopic sleeve, and the design of the steel strip reeling machine realizes the adjustable purpose of a reeling structure, the hydraulic cylinder II is fixed on the left side of the upper end surface of a sliding table, the right end of the hydraulic cylinder II is equipped with the connecting seat, the connecting seat is mounted on the left end surface of the lower casing, the lower casing is assembled on the upper end surface of the sliding table, and the lower casing are arranged on the lower side of an upper casing. The of the steel strip reeling machine realizes the purpose of gravity center adjustment. The transmission stability of the steel strip reeling machine is good, the winding width is adjustable, the stability is good, and the center of gravity isadjustable.

The invention relates to a lifting appliance for lifting tundishes. The lifting appliance comprises lifting ropes, a lifting appliance beam, long lifting rings, a counterweight, a hollow tundish lifting main shaft and full tundish lifting lugs, wherein the full tundish lifting lugs are welded with the four corners of the upper surface of the lifting appliance beam; a through hole is formed in the middle of the lifting appliance beam, and the hollow tundish lifting main shaft is fixedly connected with the through hole; a shaft end baffle is arranged at the shaft end of the hollow tundish lifting main shaft; one ends of the lifting ropes are fixedly connected with the full tundish lifting lugs or the hollow tundish lifting main shaft through shackles; through holes are separately formed in the four corners of the bottom side of the lifting appliance beam, and the through holes are fixedly connected with one ends of the long lifting rings; supports are symmetrically welded on the same side of the lifting appliance beam; the counterweight comprises a plurality of adjusting cushion blocks, nuts and fixing bolts; U-shaped clamping grooves are formed in the middles of the bottom sides of the adjusting cushion blocks, and the inner diameters of the U-shaped clamping grooves are matched with the outer diameters of the supports; and the adjusting cushion blocks are connected with the supports through clamping, a plurality of threaded holes are symmetrically formed in the two sides of the U-shaped clamping grooves, and the adjusting cushion blocks are fixedly connected with the supports.

The invention relates to an aeroengine rotor part turning device used for turning over a to-be-turned rotor part. The device includes an adjustable lifting arm and a fixed lifting arm. The top of thefixed lifting arm is fixedly connected to the adjustable lifting arm. The bottom of the fixed lifting arm is used for connecting to the to-be-turned rotor part. A first lifting rod is arranged on theadjustable lifting arm. The first lifting rod can move relative to the adjustable lifting arm, and so a lifting position is adjustable. The aeroengine rotor part turning device is provided with the movable first lifting rod on the adjustable lifting arm, and so the lifting position can be changed in real time during lifting so as to adjust the center of gravity. Therefore, the stability in the assembly and turnover process is improved, the use of the device is convenient and fast, and the practicability is high.