154results about How to "Achieve free spins" patented technology

The invention relates to a free-rotation impeller device for inhibiting eddy induced vibration of a marine riser. The free-rotation impeller device consists of a plurality of basic elements, wherein the basic elements are serially connected along the axis direction of the marine riser, each basic element comprises two rotary modules and an impeller module, each rotary module consists of an inner circle, a cylindrical roller and an outer circle, the impeller module is a whole body consisting of a sleeve and impeller blades and is processed by a plastic die, the upper end and lower end of the impeller module are respectively provided with one rotary module, the impeller module is sheathed on the outer circle of each rotary module, the inner circle of each rotary module and the marine riser are tightened and connected by a bolt, and the impeller module freely rotates around the marine riser by the rotary modules. The free-rotation impeller device has the advantages that the structure is simple, the performance is reliable, the on-site installation is convenient, the free rotation is realized, the eddy induced vibration caused by flows from any direction can be effectively inhibited, and the influence on the fatigue life of the marine riser is reduced.

The invention provides an image display control method which comprises the following steps: saving a first push contact of a user on a touch screen in the current display range as a positioning point when a mobile terminal displays an image; tracking the continuous sliding track of the user on the touch screen in the current display range, and determining a display control command inputted by a user according to the relative relationship between the sliding track and the positioning point; and controlling the current image to rotate or zoom by taking the positioning point as the circle center according to the display control command. The invention correspondingly provides an image display control device which can carry out arbitrary zooming and free rotation in arbitrary angle on the image; furthermore, the device adopts the one-point touch control, thereby being convenient to operate.

The invention discloses an automatic contact welding machine. The automatic contact welding machine comprises a base, a first tooling fixture, a second tooling fixture, a contact welding mechanism, a clamping platform deck, a rotating platform, a rotating shaft module, a transversal moving mechanism, a longitudinal moving mechanism, and an up-down moving mechanism, wherein the clamping platform deck is movably connected with the rotating platform; the rotating platform and the up-down moving mechanism are sequentially installed on the base from left to right; the first tooling fixture is movably connected with the rotating platform; the longitudinal moving mechanism is installed on the up-down moving mechanism; the transversal moving mechanism is installed on the longitudinal moving mechanism; the rotating shaft module is installed above the transversal moving mechanism; the clamping platform deck departs from the rotating platform and then is movably connected with the rotating shaft module; the rotating shaft module is connected with the second tooling fixture; the second tooling fixture is located on the right side of the rotating shaft module; the contact welding mechanism is located on the right side of the second tooling fixture. The automatic contact welding machine disclosed by the invention can freely rotate a work piece, as well as expand a welding range of the work piece, save time and reduce labour cost.

The invention discloses a rotary lifting wheel chair comprising a chassis, two front wheels, two back wheels and a seat located above the chassis, wherein the two front wheels and the two back wheels are installed on the chassis. The seat is connected with the chassis through a lifting mechanism; and a rotary mechanism capable of driving the seat to rotate is arranged between the seat and the chassis. According to the invention, the wheel chair can rotate 360 DEG in situ under the condition that the wheels do not do any motion and the height of the wheel chair can be adjusted according to needs so that the requirements of some disabled persons are met.

The invention relates to an active and passive control synergistic stand pipe vibration abatement device and method. The active and passive control synergistic stand pipe vibration abatement device is composed of two symmetrical upper rotation component and lower rotation component, a short separating disc, a long separating disc, two control rods with left hand spiral ribs and two control rods with right hand spiral ribs. When seawater impacts the device, the four control rods with the spiral ribs can rotate around each own center shaft, energy is injected in a stand pipe streaming boundary layer, and the active control of the stand pipe vibration with no energy consumption is achieved. The short separating disc and the long separating disc split space of wake flow vortex development, the development of the wake flow vortex is further destroyed, and the passive control of the stand pipe vibration is achieved. The active and passive control synergistic stand pipe vibration abatement device overcomes the high energy consumption of the traditional active control and the oneness of the traditional passive control, the advantages of the active control and the advantages of the passive control are combined, and the stand pipe vibration can be effectively suppressed.

The invention discloses a universal wheel for a luggage, which is suitable for being installed at the bottom of the luggage. The bottom of the luggage is correspondingly provided with a plurality of mounting seats; the universal wheel for the luggage comprises a wheel seat, a caster, an idler wheel, a horizontal shaft and a vertical shaft; the caster is internally provided with a vertical bearing; the vertical shaft is fixedly connected with the wheel seat after passing through the vertical bearing; the caster rotates around the vertical shaft along the vertical direction and convexly extends downwards to form two wheel caps in which shaft holes are arranged correspondingly; the idler wheel is axially arranged between the two wheel caps; the horizontal shaft passes through the idler wheel, and two ends of the horizontal shaft are fixed on the wheel caps; the idler wheel rotates around the horizontal shaft; the wheel seat is installed on the mounting seats; and the horizontal shaft and the vertical shaft are respectively coated with a carbon steel coating. The universal wheel for the luggage, which is provided by the invention, is flexible to rotate, can realize universal rotation, and has no noise in the advanced moving process, long service life and good whole performance.

The invention discloses a novel environment-friendly lifting rotation type paint spray booth. The paint spray booth is arranged below the ground in a plant, and comprises a working table, a dust removal channel, a recovery system, a lifting mechanism, guiding shafts, a rotating disk and a covering device, wherein the working table is arranged in the paint spray booth; the lifting mechanism, the guiding shafts and the rotating disk are arranged below the working table; the covering device is arranged above the working table; a workpiece fixing device and a fence are arranged on the working table; guiding holes corresponding to the guiding shafts are formed in the rotating disk; spray heads are arranged at the upper part of the inner wall of the paint spray booth; the covering device comprises an upper cover plate, a lower cover plate, an upper guide rail and a lower guide rail; and the upper guide rail and the lower guide rail are both arranged below the ground of the plant and extend outsides along the upper end of the paint spray booth. According to the novel environment-friendly lifting rotation type paint spray booth, the paint spray booth is arranged below the ground in the plant, and the corresponding working table and the corresponding rotating disk are arranged in the paint spray booth, so that the free rotation of a workpiece can be realized, and the effect of uniform spraying is achieved.

The invention relates to an intelligent robotic hand for spreading powder and making cracks assembled in a cement-based material 3D printing system, including a shoulder, a large arm, an elbow, a small arm and a wrist, and a shoulder, a large arm, an elbow, a small arm and a The wrists are sequentially connected to form a mechanical arm; it is characterized in that the robotic arm also includes a slit cutting device, the mechanical arm is the carrier of the slit cutting device, and the mechanical arm can drive the slit cutting device to move and rotate accordingly; the slit cutting device is installed On the wrist, it includes a powder storage unit, a fine sand storage unit, a spray pump, a spray pipe, a U-shaped hollow cutter head, a motion sensor and a connecting flange, and the rear part of the crack cutting device is fixedly connected to the wrist through the connecting flange Above, a U-shaped hollow cutter head is installed at the front of the fissure cutting device; inside the fissure cutting device, centered on the central axis and close to the connecting flange, a powder storage unit and a fine sand storage unit are arranged, and both the powder storage unit and the fine sand storage unit are For sealed cavity.

The invention provides a rotatable anvil block structure and solves the problem that the existing fixed type free anvil block cannot rotate a large-sized work piece. The rotatable anvil block structure comprises a bottom plate; and the bottom plate is mounted on an equipment moving platform. The rotatable anvil block structure is characterized by further comprising a rotatable platform; the bottom plate is fixedly provided with a supporting base; an annular groove is arranged on the upper plane of the supporting base; the annular groove is internally provided with an annular slide way; a V-shaped groove is correspondingly arranged on each of the upper plane of the annular slide way and the lower plane of the rotatable platform; the V-shaped groove of the annular slide way is internally and tightly filled with a ring of steel beads; the rotatable platform is supported by the steel beads in the V-shaped groove of the annular slide way and the V-shaped groove of the lower plane of the rotatable platform is buckled on the steel beads; and horizontal bind holes are formed in the outer circumference of the rotatable platform.

The present invention discloses an insulating tape automatic winding device. The device comprises running wheels, a motor, a power wheel, a substrate, a control button, middle wheels, a rotation shaftand a controller. The running wheels are opened and annular, the power wheel and the middle wheels are gears, the outer sides of the running wheels are provided with gear teeth, the motor is installed on the substrate, the power wheel is connected with an output shaft of the motor, there are two middle wheels which are engaged with the power wheel, and the middle wheels are connected with the gear teeth at the outer sides of the running wheels; the rotation shaft is arranged on the running wheels, an insulating tape winding drum is installed on the rotation shaft, the control port of the motor is connected with the controller, and the controller is connected with the control button. The winding device can automatically complete the insulation tape winding work, is simple in structure andlow in cost, is provided with the gear teeth at the outer sides of the running wheels to minimize the volumes of the running wheels so as to achieve the small and exquisite running part of the deviceand meet the winding demand of a dense line.

The invention provides a multifunctional traction frame for the department of orthopedics and belongs to the technical field of medical instruments. The multifunctional traction frame comprises a base, a backboard, a hip board and a leg board and further comprises a controller, a heating layer, a first sliding block, a second sliding block, a stretching board, a fixing frame and a motor. The controller, the motor and the fixing frame are arranged on a bottom board. The hip board is arranged on the bottom board through a strut. The two ends of the hip board are connected with the backboard and the leg board through a first rotary shaft and a second rotary shaft respectively. The second rotary shaft is connected with an end shaft of the motor through a belt. A left sliding groove and a right sliding groove are formed in the hip board and provided with the first sliding block and the second sliding block respectively. The multifunctional traction frame has the advantages that the intelligent controller is used for intelligently controlling lifting, angle adjusting and body position adjusting of the traction frame, use is convenient, control is precise, free rotation and extension and retraction of the backboard and the leg board are achieved through a sliding block-connecting rod mechanism, the limbs of a patient can be conveniently subjected to changes of the sitting posture and the lying posture, and as the heating device is arranged, use comfort is improved.

The invention belongs to the technical field of unmanned aerial vehicle debugging and relates to a multi-vehicle-type unmanned aerial vehicle debugging platform and method. The multi-vehicle-type unmanned aerial vehicle debugging platform comprises a bottom board, supporting structures, an outer ring, a middle ring, an inner ring, a limiting hole, stop hinge pins, fixers, supporting shafts and dynamics sensors. Each supporting structure is a triangular structure, the bottom edges of the two supporting structures are arranged on the bottom board in parallel, the top end of each supporting structure is connected with the corresponding fixer through the corresponding dynamics sensor, and the dynamics sensors are used for acquiring the size of force applied to the supporting structures by thefixers in the vertical direction. The diameters of the outer ring, the middle ring and the inner ring are sequentially decreased progressively, and the outer ring, the middle ring and the inner ring are sequentially connected from outside to inside. The platform has the beneficial effects that the functions of single-axis parameter adjustment and three-axis parameter adjustment at most can be achieved, various vehicle types of unmanned aerial vehicles and fixed wing unmanned aerial vehicles can be debugged, the use range is wider, and applicability is wide.

The invention discloses a bird repelling device for a high-voltage power transmission line tower. The bird repelling device comprises an outer sleeve, a supporting rod connected with the outer wall ofthe outer sleeve, a hollow pipe arranged inside the outer sleeve and a fan blade assembly and a spring assembly located on one side of the outer sleeve. Compared with the prior art, the bird repelling device is simple in structure, utilizes the fan blade assembly to convert wind energy into kinetic energy, achieves effective energy transfer, the fan blade assembly is driven by wind to drive the spring assembly to compress, a conduction mechanism wholly moves to the right, so that the conversion of wind energy to kinetic energy is achieved, meanwhile an air outlet at the tail end of the hollowtube is matched with a ventilation channel of a supporting cylinder body, the transmission of the wind energy is achieved, and when the wind energy is transferred into an object placing cavity, a flip cover is blown to be opened to release a bird repellent component therein.

The invention discloses a wavelet transformation-based hybrid carrier modulation method and system. According to the method and system of the invention, the wavelet transformation-based hybrid carrier modulation method is adopted to suppress ISI(inter symbol interference)/ICI(inter carrier interference) under a doubly-selective channel; the modulation characteristics of wavelet transformation and single-variable carriers are integrated, so that SC (single-carrier) and MC (multi-carrier) modulated signals can be simultaneously transmitted, and therefore, the free rotation of the signals in a time-frequency domain plane can be successfully achieved; multi-carrier components are very sensitive to ICI generated by Doppler frequency shift, and ISI caused by delay spread will exert great influence on single-carrier components, while, by means of changing modulation parameters, influence to the system caused by the two kinds of interference can be effectively reduced.

The invention discloses a support base for an industrial robot. The support base comprises a base, a supporting seat and a top seat, wherein waist-shaped holes are formed in the two sides and two endsof the outer bottom end of the base, pressing plates are installed at the top end of the base through bolted connection, and a controller is installed on one side of the outer wall of the base through bolted connection; and shock absorbing springs are installed at the bottom end of interior of the base, the supporting seat is installed at the other ends of the shock absorbing springs, heat dissipation boxes are installed on the outer wall of the supporting seat, heat dissipation fans are installed in the heat dissipation boxes, and a motor is installed at the bottom end of the interior of thesupporting seat through bolted connection. According to the support base for the industrial robot, a driving gear is installed at the output end of the bidirectional motor, the top seat is installedat the top end of the inner wall of the supporting seat through bearings, mounting holes are formed in the top seat, a gear groove is formed in the middle of the bottom end of the top seat, and the gear groove and the driving gear are matched with each other, and thus the advantages that the industrial robot can rotate freely and is convenient to operate in different directions are realized.

The invention provides a movable climbing fixed-installation footboard device for substation maintenance work. The movable climbing fixed-installation footboard device for substation maintenance work comprises a hydraulic hoisting mechanism, a middle platform, a left platform, a right platform and a dedusting device. The hydraulic hoisting mechanism comprises a hydraulic cylinder, a hoisting support and a hoisting platform. The left platform and the right platform are each provided with a hollow round pipe. The middle platform is directly fixed to the middle position of the hoisting platform through a plurality of vertical rods. The left end and the right end of the hoisting platform are each provided with a supporting stand column. The left platform and the right platform are arranged on the supporting stand columns in a sleeving mode through the hollow round pipes in a one-to-one corresponding mode. The dedusting device is arranged on the lower bottom plane of the left platform through a dedusting device fixing support. During maintenance work, the left platform and the right platform can be rotated freely according to maintenance requirements so that the most comfortable maintenance direction can be obtained for maintainers, and accordingly the maintenance labor intensity is relieved; and rapid dedusting of disconnector insulators of transformer substations can be achieved through the dedusting device, and accordingly the efficiency of substation maintenance work is improved.

The invention provides a six-axis tin soldering robot comprising a rack (1), an X-axis assembly (2), a Y-axis assembly (3), a ZR-axis assembly (4) and a tin soldering head (5), wherein the ZR-axis assembly (4) comprises an R shaft (4-1) and a synchronous pulley (4-2) fixedly arranged at the lower end of the R shaft (4-1); the synchronous pulley (4-2) rotates around the R shaft (4-1). The six-axis tin soldering robot also comprises an M-axis assembly (6) and an N-axis assembly (7), wherein an M shaft (6-1) is vertical to the R shaft (4-1); and an N shaft (7-1) is vertical to the R shaft (4-1) and the M shaft (6-1). The robot is additionally provided with the R-axis, M-axis and N-axis assemblies on the basis of the existing X-axis assembly, Y-axis assembly and Z-axis assembly, so that the tin soldering head connected with the N-axis assembly can realize multi-angle free rotation in a space, the six-axis free movement of the tin soldering head is realized, various different soldering requirements can be met, and the problem of inapplicability caused by different welded products is solved.

Five degree of freedom butt joint tightness debugging equipment provided with a connector is characterized in that a connecting device is arranged at one end of a machine frame, and the end of the machine frame is provided with a fixed connector. The connecting device comprises a lifting device, a cross axial movement device and a rotating device. The machine frame which is used for driving the connecter to lift up and down, move in a cross mode and rotate in a horizontal mode is provided with an angle turnover device of the five degree of freedom butt joint tightness debugging equipment which is provided with the connector. A turnover plate is provided with a connecting structure which is used for connecting the other end of the connector. The five degree of freedom butt joint tightness debugging equipment provided with the connector has the advantages of freely rotating around six shafts, being capable of imitating deviation produced by the connector when a work object is connected through butt joint, accurately controlling deviation of an angle and displacement and clearly mastering the size of the adjustment of the angle due to the fact that an adjustment stick is adopted, and being high in reliability. Due to the fact that the whole equipment is connected through stainless screws, and stainless pins which match with the stainless screws are arranged, the five degree of freedom butt joint tightness debugging equipment provided with the connector is easy to dismantle and reset, guarantees assembling accuracy, is good in stability and free from producing rusty spots due to the fact that the whole equipment except of a circular dividing table and a cross-shaped working table is made of 2 Cr13 stainless materials.

The invention discloses a device and a method for supporting a wireless terminal. The back side of the main body of the wireless terminal is provided with a sucking disc provided with a rotating shaft and a connecting rod so that the wireless terminal can be stably fixed on certain object through the adsorption of the sucking disc; besides, the distance between the wireless terminal and a fixed object is adjusted by adjusting the length of the connecting rod, and the wireless terminal achieves free rotation at any angle by adjusting the rotation angle of the rotating shaft. The device and the method not only can achieve that the wireless terminal is supported stably, but also can adjust the distance and the supporting angle between the wireless terminal and the fixed object without influencing the volume of a wireless terminal product and the plate arrangement and wiring of an internal device to ensure that the wireless terminal product has a beautiful appearance and is convenient to carry.

The invention discloses a six-dimension welding mechanical arm. The six-dimension welding mechanical arm comprises a base, a rotating base rotatably connected to the top of the base, a mechanical armassembly rotatably connected to the top of the rotating base, a rotating part arranged on the other end of the mechanical arm assembly and rotatably connected with the mechanical arm assembly, a driving assembly in transmission connection with the rotating base, the mechanical arm assembly and the rotating part, a welding part fixed to the rotating part, a positioning part fixed to the rotating part, and adjacent to the welding part, and a control assembly arranged in the base and electrically connected with the driving assembly, the welding part and the positioning part. The six-dimension welding mechanical arm is reasonable in design, simple in structure, convenient to operate, easy to control, rich in function, capable of achieving welding of welding points under multiple angles, and high in automation degree and fining degree, and work efficiency and work quality of mechanical welding can be greatly improved.

The invention discloses an air bearing supporting main beam system for a dead-load type miniature force value standard device, and the system comprises an air bearing, a main beam, a balance weight balancing mechanism, a balance fine tuning mechanism, gas clamping mechanisms, laser displacement sensors, and a substrate. The air bearing is fixed on the substrate, and the air bearing achieves the single-freedom-degree support for the main beam. The balance weight balancing mechanism is connected with one end of the main beam, and the balance fine tuning mechanism is connected with the central part of the main beam. The gas clamping mechanisms are symmetrically disposed at two sides of the main beam. The laser displacement sensors are symmetrically disposed on the substrate. The system provided by the invention reduces the frictional force, achieves the free rotation of the main axis direction, limits the freedom degrees of the main beam in other directions, eliminates the impact on a measurement result from a non-measurement-direction external force, guarantees the accurate positioning during weight loading and unloading, and reduces the measurement uncertainty of the dead-load type miniature force value standard device.

The present invention belongs to the field of steelmaking apparatus technology, and is especially an automatic steelmaking oxygen lance regulator. The automatic steelmaking oxygen lance regulator includes an elevating bogie and a metal hose, and features one regulating plate on the elevating bogie connected to the metal hose and for the oxygen lance body to be fixed on; a fixture to fix the regulating plate the oxygen lance body and the metal hose integrally; a hemispherical support for the bogie in the gravitational center of the integral, and a hand regulating unit and a connecting unit to connect the integral and the bogie. The present invention is for regulating the deviation of the oxygen lance center line to the furnace mouth center automatically via rotation, and has the advantages of short regulating time and capacity of raising production efficiency.

The invention relates to a drainer based on a rotary draining core structure. The drainer includes a drainer body, a draining core, an annular lower disc and a soft rubber cover. The drainer body is a cylindrical structure provided with a hollow cavity, the draining core and the annular lower disc are disposed in the cavity of the drainer body from top to bottom, and the soft rubber cover plugs a drainer upper opening to cut off water. Compared with the prior art, the invention is a detachable novel drainer with a rotary draining core structure and a filtering function, realizes intelligent drainage of an unpowered device, and has the advantages of difficult oscillation, long service life, large filtration area, and small flow resistance, etc.

The invention relates to a crane, and belongs to the technical field of lifting devices. The free rotation crane comprises a pedestal, a crossbeam is fixed to the pedestal, one side of the pedestal is provided with two elongated cylinders, the front portion of the pedestal is provided with a sleeve, the upper end and the lower end of the sleeve are fixedly connected with a first flange and a second flange respectively, two sides of the second flange are connected with one end of the pedestal and the crossbeam through bolts respectively, two sides of the sleeve are in strengthened connection with the pedestal through a front support and a rear support respectively, a supporting rod is sleeved in the sleeve, a first bearing is arranged between the top of the sleeve and the supporting rod, a second bearing is arranged between the bottom of the sleeve and the supporting rod, and one side of the supporting rod is provided with a platform. The free rotation crane has the advantages of labor intensity reduction, great work efficiency increase, small occupied space, and suitableness for construction in a narrow space.

The invention discloses an automobile engine disassembling and assembling detection practical training assessment device. Supporting columns are welded to four feet of a square base, two supporting beams are arranged on the supporting columns, and a motor steering switch is arranged on the upper portion of the left supporting beam; motor cases are welded to the middles of the two supporting beams,a double-axis alternating-current motor is fixed in the middle of the bottom of an inner cavity of the motor case through a bolt, and a bearing plate is arranged over a base; a pulling block is fixedto the bearing plate through welding, a thrust bearing is inlaid in the middle of the bearing plate, and a mounting fixing plate is welded to the upper portion of the thrust bearing. The device has the advantages that an automobile engine can freely rotate easily on the bearing plate through the thrust bearing and the mounting fixing plate; meanwhile, the automobile engine can be rotated by any rotation angle through pin fixing holes in the periphery of the mounting fixing plate; the use of the double-axis alternating-current motor can save time and labor when the motor is simply lifted by manpower, and convenience is brought to students during use.

The invention discloses an aluminum foil packaging machine. The aluminum foil packaging machine comprises a machine frame (1). The machine frame (1) is provided with a packaging mechanism and a labeling mechanism. The packaging mechanism comprises a main scroll (2), a tensioning wheel (3), an auxiliary winding wheel, a feed channel and a feed rotary disc (7). The feed channel is communicated with a long notch (8) of the feed rotary disc (7). The vertical long notch (8) of the feed rotary disc (7) is communicated with a clamping and holding station. The machine frame (1) is provided with a station switch rotary disc (10). The station switch rotary disc (10) is provided with a pipe supporting mechanism (11). The pipe supporting mechanism (11) is provided with an inner supporting mechanism. A pipe jacking mechanism (12) is installed at the packaging station of the machine frame (1). The main scroll (2), the tensioning wheel (3) and the auxiliary winding wheel are vertically arranged. The discharge station of the machine frame (1) is provided with a discharge outlet. According to the aluminum foil packaging machine, the feed process is convenient to implement and efficient, the structure is compact, occupied space is small, convenience, high efficiency and energy conservation are achieved in discharging and unloading processes, and automatic labeling is achieved.