42results about How to "Reduce wobble" patented technology

Firearms having a carrier assembly, buffer systems, and methods, having a carrier spindle, carrier saddle, or both, to reduce carrier tilt or wobble, reduce wear, or both. A carrier spindle can be located forward of the buffer spring, buffer weight, or both, and aft of the carrier assembly, and can slidably engage the carrier assembly. A spindle spring can bias the carrier spindle aft from the carrier assembly. In some embodiments, a taper on the carrier spindle facilitates separation of the lower receiver from the upper receiver. In some embodiments, the spindle spring is a helical spring that is loaded in compression and pushes the carrier spindle aftward. Some embodiments include a carrier saddle that supports the aft end of the carrier assembly. The carrier saddle can be raised, have a concave top surface, be made of a softer material, have dimensions within certain ranges, or a combination thereof.

The invention discloses an environment-friendly type concrete mixing plant which can recycle wastewater generated in production as mixing water for producing concrete. A precise weighing water inlet tube is arranged in a high-precision water supply weighing device, so that water can be supplied to a water tank through the precise weighing water inlet tube at the tail stage of water supply weighing; a coarse weighing water inlet tube extends into the bottom of the water tank, a buffer hole plate is arranged at a water outlet of the coarse weighing water inlet tube; the water outlet of the precise weighing water inlet tube is horizontally formed, so that impact, on the water tank, of inlet water can be reduced; and two weighing sensors, a guide column and a guide sleeve are arranged on a beam, so that water tank swing and shake further can be reduced; and a buckled-weighing leakage tube is further arranged, so that precise buckled-weighing is realized. The environment-friendly type concrete mixing plant can improve water supply precision, and improves concrete quality.

A deep diving fishing lure having a forwardly-extending diving lip is provided with a fore-and-aft pivotable lure positioning arm pivotably mounted about a pivot axis within the diving lip near the lower portion of the forward face. The lure positioning arm, when fixed in an aft position relative to the pivot axis rests within a longitudinally extending groove located in the diving lip. The lure positioning arm, when in the fixed aft position maintains the lure in a diving position when pulled through a body of water but negates the lure's tendency to dive when released from the aft position.

The invention relates to a floating platform stabilizer which can stabilize an ocean floating platform by relevant mechanisms under high sea conditions and accordingly reduce pull force of a platform for mooring cables. The floating platform stabilizer comprises a winch, a chain stopper and a solid steel ball. The winch is connected with the solid steel ball through a steel cable and controls chain length of the solid steel ball. The chain stopper is arranged between the solid steel ball and the winch and fixes chain length of the solid steel ball. The solid steel ball is connected with a lowermost deck of a floating platform in a suspended manner. When the floating platform encounters extremely severe sea conditions, oscillation and shift of the platform body can be reduced by the floating platform stabilizer, pull force of the mooring cable can be reduced, feasibility of the floating platform under the severe sea conditions is improved, and platform safety is guaranteed.

The invention discloses a grab ship unloader as well as a driving method and device of the grab ship unloader. The driving method for a grab driving mechanism comprises the steps of acquiring an unloading position and an initial position of a grab; planning a moving track from the initial position of the grab to the unloading position; acquiring the pendulum length of the grab; calculating the grab starting accelerated speed according to the pendulum length of the grab and the preset moving speed of the grab; outputting a grab starting accelerated speed instruction to the grab driving mechanism according to the calculated accelerated speed; and outputting a moving instruction to the grab driving mechanism according to the planed moving track. The effect of automatically moving the grab is achieved, so that the labor intensity of operating staff is relieved, and the swing of the grab is reduced. The invention also discloses a grab ship unloader.

The invention discloses an offshore floating island which comprises a plurality of floating platform modules, and each floating platform module is provided with a main floating body frame formed by aclosed annular columnar floating body, an offshore operation platform which is arranged above the main floating body frame and is used for bearing various offshore operation buildings, and a lower frame body which is arranged below the main floating body frame and formed by annular floating bodies, wherein the offshore operation platform and the main floating body frame as well as the lower framebody and the main floating body frame are connected through hollowed-out connecting structures extending longitudinally, and each hollowed-out connecting structure is formed by a floating body of a hollow structure; the displacement of the main floating body frame is greater than the total structural weight of the floating platform modules; the offshore floating island further comprises mooring ropes or anchor chains which are used for connecting every two adjacent floating platform modules, passage channels which are arranged among the floating platform modules and are used for personnel andgoods circulating, and a mooring system which is used for fixing each floating platform module in a destination sea area. The offshore floating island is low in construction difficulty and cost, and has higher storm resistance and self-adjusting capacity adapting to sea conditions.

A rotation transmission mechanism of a spinning reel for fishing transmits a rotation of a handle to a driven gear of a reciprocating mechanism. The rotation transmission mechanism includes an intermediate gear, a shaft member, and a biasing member. The intermediate gear rotates in response to rotation of the handle, meshes with the driven gear, and transmits the rotation of the handle to the driven gear. The shaft member rotatably supports the intermediate gear. The biasing member biases the intermediate gear in an axial direction of the shaft member.

The invention discloses an offshore floating island. The offshore floating island comprises a plurality of floating platform modules, offshore operation platforms, lower frame bodies and a mooring system, wherein all floating platform module are provided with main floating body frames formed by closed annular columnar floating bodies, the offshore operation platforms are arranged above the main floating body frames and are used for carrying various offshore operation buildings, the lower frame bodies formed by annular floating bodies below the main floating body frames, the offshore operationplatforms and the main floating body frames are connected with the lower frame bodies and the main floating body frames through longitudinally extending hollow connecting structures, and the hollow connecting structure is formed by floating bodies with hollow structures; the water discharge amount of the main floating body frames is larger than the total weight of the structures of floating platform modules, a mooring rope or an anchor chain connected with two adjacent floating platform modules, passage channels are arranged between floating platform modules and are used for carrying out personnel and cargo circulation, and the mooring system is used for fixing each floating platform module in a destination sea area. According to the offshore floating island, the offshore floating island group and a construction method of the offshore floating island, the offshore floating island has the advantages of being low in construction difficulty and cost, higher in storm resistance and capableof adapting to the self-adjusting capability of sea conditions.

The invention relates to the technical field of navigation, and discloses a navigation display screen support capable of keeping balance and preventing vibration, which comprises a base, a supportingplate is rotatably connected to the center of the upper surface of the base, a mounting frame is rotatably connected to the upper end of the supporting plate, and a rotating shaft is rotatably connected to the circle center of the mounting frame. An air duct is formed in the mounting frame, a one-way valve is rotatably connected into the air duct, an air pump is fixedly connected into the end of the air duct, an air inlet hole is formed in the end, away from the air pump, of the air duct, and an air pipe is fixedly connected to the outer side of the air inlet hole. The air pump is fixedly connected to the interior of the air duct, and air in the telescopic rod on the other side is pumped into the telescopic rod on the pressed side, so that the interior of the telescopic rod on the pressedside can be pressurized when the display screen inclines, the telescopic rod is stretched, and the display screen is pushed to be in a horizontal state; therefore, a driver can still observe the navigation information on an inclined road surface.

The invention discloses a novel house capable of being assembled through insertion connection and an assembling method thereof. The novel house comprises a first-story steel house frame, a second-story ground steel house frame, wall boards, channel steel blocks and angle iron blocks. The first-story steel house frame comprises a bottom four-way connector, a middle ground longitudinal beam, peripheral ground crossbeams, four three-way connectors at four corners of the house, peripheral ground longitudinal beams and first-story standing columns. The second-story ground steel house frame comprises two five-way connectors, second-story crossbeams, first-story roof crossbeams, second-story longitudinal beams, two corner four-way connectors, and first-story roof longitudinal beams. The assembling method includes: tamping pure soil, pouring a waterproof concrete pad layer of 20cm on the pure soil, and maintaining for 14 days; marking the waterproof concrete pad layer with inked lines, and mounting the first-story steel house frame; mounting second-story standing columns, to be more specific, respectively connecting the upper-end ports of the vertical faces of the five-way connectors with the second-story standing columns, and connecting the upper-end ports of the vertical faces of the corner four-way connectors with the second-story standing columns; mounting a second-story roof steel house frame to complete assembling.

The invention discloses a deviation-rectifying and embossing rewinding machine for aluminum foil paper production. The machine comprises a tracking monitor, an edge brushing mechanism and a pneumaticconstant-pressure arm, and further comprises an embossing mechanism, a winding and unwinding mechanism and a deviation rectifying mechanism, wherein the winding and unwinding mechanism and the deviation rectifying mechanism are symmetrically arranged and are uniformly arranged in a winding and unwinding machine box; the winding and unwinding machine box is provided with a thickening plate; an electric appliance control cabinet is arranged between the two winding and unwinding machine boxes; the embossing mechanism is fixedly arranged at the front part of the electric appliance control cabinet;a central winding drum is further arranged on the electric appliance control cabinet and is driven by a central winding drum motor arranged in the electric appliance control cabinet; the edge brushing mechanism is arranged at one corner of the upper side of the electric appliance control cabinet; the pneumatic constant-pressure arm is arranged at one side of the electric appliance control cabinet; the tracking monitor is arranged at the other side of the electric appliance control cabinet; and the tracking monitor, the edge brushing mechanism, the pneumatic constant-pressure arm, the embossing mechanism, the winding and unwinding mechanism and the deviation rectifying mechanism are all connected to the electric appliance control cabinet and are uniformly regulated and controlled by a uniform controller, so that the working efficiency is greatly improved.

The invention discloses a static power exchange thighbone intramedullary nail, which comprises a nail main body, wherein a coronal plane at the far end of the nail main body is provided with a first sliding lock hole and a third sliding lock hole; a vertical plane at the far end of the nail main body is provided with a second sliding lock hole and a fourth sliding lock hole; the first sliding lock hole, the second sliding lock hole, the third sliding lock hole and the fourth sliding lock hole are long holes; the end part of the long holes are circular-arc-shaped; the third sliding lock hole is longer than the first sliding lock hole; the fourth sliding lock hole is longer than the second sliding lock hole; the vertical plane at the far end of the nail main body is provided with a positioning platform; and the center of the positioning platform is provided with a third static lock hole. Due to the adoption of the static power exchange thighbone intramedullary nail disclosed by the invention, early static fixation of bones can be realized, motorization can be performed in case of delayed healing of bone fractures, static fixation is performed after motorization is performed appropriately, motorization can be performed once again, static fixation is performed after motorization is performed appropriately, and controllable adjustment is performed on dynamic and static fixation, so that rapid healing of bone fractures is facilitated.

The invention discloses an AGV offset weight distribution method, an electronic device and a storage medium. The method comprises the steps that a magnetic tracing sensor detects an offset a, an AGV substitutes the offset a into a formula b = a (1 + ln1.1 / lnp) to calculate a control quantity b, and a driver adjusts the speed of a driving wheel according to the control quantity b so as to correct the offset. Compared with the prior art, the control quantity b is obtained through calculation by adopting a continuous nonlinear control function formula, compared with an existing linear control mode, the driving smoothness of the AGV at different curves is improved, the swinging condition of curve driving is reduced, and particularly, adjustment for large vehicles is more obvious; the radius range of the curve where the AGV runs is increased, and the AGV can adapt to the smaller radius of the curve.

The invention discloses a marine economic development foundation platform module. The marine economic development foundation platform module comprises a main floating body frame formed by cylindricalfloating bodies which extend in the annular direction and are connected end to end to form a closed annular shape, and an operation platform which is arranged above the main floating body frame and provided with an offshore operation platform layer, wherein the operation platform is connected with the main floating body frame through a first connecting column extending vertically, and the offshoreoperation platform layer is connected with a superstructure used for conducting various offshore operations; the module further comprises a lower frame body which is arranged below the main floatingbody frame, is of a closed annular structure and is connected with the main floating body frame through a second connecting column extending vertically; and the displacement of the main floating bodyframe is greater than the total structural weight of the marine economic development foundation platform module. The foundation platform module has large reserve buoyancy and a large waterline plane,the overall stability, the storm resistance and the adjusting capacity adapting to severe sea conditions are improved, and better safety is achieved; and the structure is simple, the overall framing performance is high, and the strength of the overall frame is improved.

The object of this invention is, in an electronic device provided with a supporting member that supports a drive member driven with vibration by engaging therewith, to provide the fixing structure of wiring that realizes the following: alleviation of the wobble generated by the vibration at the operating time of the drive member, reduction of unwanted sound and vibration caused by the above wobble, and inexpensive fixing of a wire without additional and specific members for wiring. This invention is constituted as a fixing structure of wiring for fixing a wire wired in an electronic device, wherein a drive member driven with vibration and a supporting member for supporting the drive member by engaging therewith are provided in the electronic device, and wherein the wire is fixed by being interposed in a gap formed between the drive member and the supporting member.

The invention provides a noise reduction device for a sewing machine, which includes a main shaft, a driving motor for driving the main shaft to rotate, and a hand wheel. The driving motor has a motor rotor and a motor stator that cooperate with each other. The main shaft has a rotor shaft section that constitutes a part of the motor rotor. It also includes a driving shaft coaxial with the main shaft, one end of the driving shaft is fixed to the hand wheel; when the driving motor is running and the driving main shaft is rotating, the other end of the driving shaft is separated from the rotor shaft section; when the driving motor stops, the When the handwheel drives the main shaft to rotate, the other end of the drive shaft engages with the rotor shaft section. This application can realize the detachability of the main shaft and the hand wheel, effectively shorten the length of the main shaft, and then reduce the processing difficulty of the main shaft; especially, in the process of driving the main shaft to rotate by the driving motor, the main shaft and the hand wheel are in a separated state, so the hand wheel Both the sewing machine and the drive shaft are in a static state, thereby effectively reducing the noise of the sewing machine, reducing the swing of the main shaft, and improving the stability of the main shaft.

The invention discloses a three-pillar support-type superstructure of an unmanned surface vehicle. Two totally-enclosed front pillars and a totally-enclosed rear pillar are vertically and fixedly arranged on a deck of a main hull; the two front pillars are symmetric relative to the left-right width direction of the main hull, and respectively located at an L position which is 1 / 6-1 / 4 in front of a midship; L is the designed waterline length of the main hull; the rear pillar is located in the middle of the left-right width direction of the main hull, and located at an L position which is 1 / 6-1 / 4 at the rear of the midship; the top part of the rear pillar is provided with a first layer sensing platform and a second layer sensing platform located above the first layer sensing platform; the first layer sensing platform and the second layer sensing platform are fixedly connected by a connecting pillar; another first layer sensing platform is connected between top parts of the two front pillars; a longitudinal horizontal member is connected between the middles of the two first layer sensing platforms. The sensing platforms are large in area, so that more facilities can be arranged, and the longitudinal stability of the unmanned surface vehicle is improved.

The invention provides a naked guide rail of an automatic optic inspection device. The naked guide rail comprises a plurality of guide rail modules which are arranged in sequence; each guide rail module comprises a guide rail mounting frame, a guide rail driving motor, a power assembly, a protection plate structure and a limiting mechanism, wherein the guide rail driving motor is connected onto the guide rail mounting frame; the power assembly is arranged on the guide rail mounting frame in a penetrating manner and the guide rail driving motor is connected with the power assembly through a driving belt; the protection plate structure and the guide rail mounting frame are arranged at interval; the bottom of the power assembly is arranged in the protection plate structure; the limiting mechanism is arranged on the guide rail mounting frame; the limiting mechanism is located between the adjacent guide rail modules. The naked guide rail of the automatic optic inspection device has the following beneficial effects that the structure sis simple and the cost is low; the friction force between a conveying ring and a PCB (Printed Circuit Board) can be increased through conveying teeth on atop surface of the conveying ring and power can be more effectively transmitted to the PCB, so as to drive the PCB to move frontward; a circular-platform-shaped adjusting column can be adaptive to thePCBs with different sizes, so that whole equipment can be adjusteding in a certain range.

The invention relates to the related technical field of seafood transportation, and discloses a seafood transportation box for optimizing the influence of the transportation process on the freshness rate. The seafood transportation box comprises an external device and a seafood storage device, the external device comprises a transportation box body, the transportation box body is provided with a side cover in a rotatable opening and closing mode, the top of the transportation box body is provided with a top cover in a rotatable opening and closing mode, buffer springs are fixedly mounted on the bottom wall of the transportation box body, and a buffer plate is fixedly mounted on the buffer springs. According to the seafood transportation box for optimizing the influence of the transportation process on the freshness rate, through the arrangement of a separated transportation system, the structure of the transportation box is optimized, the seafood transportation box is composed of an external transportation box body and a built-in seafood storage device, the built-in seafood storage device is installed in a wrapping mode through the external box body, and multiple buffering and oxygenation structures are arranged in the external box body, so that the influence of vibration on the seafood in the seafood storage device is reduced in the transportation process of the seafood storage device containing the seafood.

The invention discloses a lifting appliance swing preventing system for a crossing type double-trolley quay crane. The system comprises an upper trolley lifting appliance swing preventing device and a lower trolley lifting appliance swing preventing device. Each of the upper trolley lifting appliance swing preventing device and the lower trolley swing preventing device comprises a bottom frame, a torque motor, a swing preventing winding drum and a swing preventing steel wire rope, wherein each torque motor and the corresponding swing preventing winding drum are in transmission connection, each torque motor and the corresponding swing preventing winding drum are fixedly arranged on the corresponding bottom frame, one end of each swing preventing steel wire rope is wound around the corresponding swing preventing winding drum, and the other end of each swing preventing steel wire rope is fixedly connected with a corresponding lifting appliance. According to the lifting appliance swing preventing system, stable operation of an upper trolley and a lower trolley in the crossing type quay crane can be guaranteed, the shake and the swing of the upper trolley lifting appliance and the lower trolley lifting appliance are effectively reduced, operation of the upper trolley and the lower trolley cannot be affected, and the mutual interference of the upper trolley and the lower trolley is avoided. The swing preventing steel wire ropes in the system do not bear the tension in the normal using process and can effectively operate for a long time, and the lifting appliance swing preventing system is simple in arrangement, stable in operation and low in initial investment and operation maintenance cost.

A device for reducing liquid sloshing in the moon pool of marine engineering structures. The diversion cover fixed on the inner wall of the moon pool, the diversion cover includes an outer shell fixedly connected with the inner wall of the moon pool, an inner shell, a plurality of vertical ribs and a plurality of arc-shaped transverse ribs, the outer shell Both the body and the inner shell are trumpet-shaped, the inner shell is set between the outer shell and the inner wall of the moon pool, and a plurality of vertical ribs are evenly distributed radially between the outer shell, the inner shell and the inner wall of the moon pool In between, multiple arc-shaped transverse ribs are fixed in layers and intervals between the outer shell, the inner shell and the inner wall of the moon pool, and the outer shell and the inner shell are covered with multiple rows of round ribs from top to bottom. hole. The invention has a simple structure, and the guide cover or multi-layer wave-dissipating rings or series of arc-shaped wave-dissipating plates can effectively prevent waves from climbing up, prevent deck overflow from occurring, reduce the formation of vortices in the moon pool, and improve the hydrodynamic performance of the ship. The coupling effect between seawater and structures is weakened, and the sway of marine engineering structures is weakened.

The disclosure provides a small ship vibration damping system, which belongs to the technical field of hydraulic pressure. The small ship vibration damping system includes a power unit, a three-position four-way reversing valve, an energy storage unit, a compensation unit and a damping oil cylinder; the power unit includes a pump set, and the oil inlet of the pump set is connected to the oil tank of the small ship damping system; The middle function of the three-position four-way reversing valve is O-type, the oil inlet of the three-position four-way reversing valve is connected with the oil outlet of the pump unit, and the oil return port of the three-position four-way reversing valve is connected with the fuel tank. The first working oil port of the three-position four-way reversing valve communicates with the rodless chamber of the damping cylinder, and the second working oil port of the three-position four-way reversing valve communicates with the rod chamber of the damping cylinder; the energy storage unit includes The accumulator; the compensation unit includes a first sequence valve, a two-position two-way reversing valve, a three-position three-way reversing valve, a second sequence valve and a third sequence valve. The present disclosure can reduce the shaking and swinging of small ships when berthing.

The invention relates to a buoy releasing and retracting system based on a separable inner turret mooring system. The buoy releasing and retracting system comprises a buoy, a barrier frame device anda clamping device, wherein the buoy comprises an outermost anti-rolling tank, a water ballast tank located inside the anti-rolling tank and a sealed cabin located inside the water ballast tank, the middle part of the buoy penetrates through liquid transfer piping, and the separation part of the liquid transfer piping is arranged in the sealed cabin; the barrier frame device includes a barrier frame and a barrier frame storage groove, and the barrier frame can be unfolded or folded; and the clamping device includes a position controlling frame, a clamping arm, a contraction chain and a power contraction device, and the clamping device is installed in a turret to cooperate with the barrier frame to assist releasing and retracting of the buoy. According to the buoy releasing and retracting system based on the separable inner turret mooring system, better sealing conditions are provided for the separation of the piping by arranging the sealed cabin, efficient releasing and retracting of the buoy can be realized by arranging the matching barrier frame device and clamping device, so that the releasing and retracting process of the buoy is efficient and simple, the process is safer and more reliable, and manpower and material resources are saved.