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

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 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 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.

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 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 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 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 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.