197results about How to "Large rotation range" patented technology

The invention relates to a connection device associated with an arm of an articulated three-dimensional measuring appliance, the device comprising a moving assembly and a fixed assembly, together with connection means for providing an electrical link between said two assemblies. In accordance with the invention, the moving assembly comprises first and second adjacent components on a common axis, the first component being constrained to rotate with the jointed end of the arm and being connected to the second component by a coupling system having successive dogs so that said second component is entrained in rotation only after said first component has turned through significantly more than one revolution in the same direction, and the connection means comprise facing contact members carried respectively by the fixed assembly and by the second component, arranged to provide a continuous electrical link in normal operation and a link that is restricted to a short angular range of rotation once the second component is entrained in rotation by the first component.

A cartridge-based cryogenic imaging system includes a sample handling system. This system uses a kinematic base and cold interface system that provides vertical loading to horizontally mounted high-precision rotation stages that are able to facilitate automated high-resolution three-dimensional (3D) imaging with computed tomography (CT). Flexible metal braids are used to provide cooling and also allow a large range of rotation. A robotic sample transfer and loading system provides further automation by allowing a number of samples to be loaded and automatically sequentially placed on the sample stage and imaged, These characteristics provide the capability of high-throughput and highly automated cryogenic x-ray microscopy and computed tomography.

A control device and corresponding method for controlling a transfer device on a harvesting machine are disclosed. The transfer device is arranged at a distance adjacent to a housing part so as to be rotatable about a vertical axis and, to alter the height setting, elevatable about a horizontal axis. The control device includes a rotation range limiting means that limits the maximum permitted pivot range of the transfer device as a function of the height setting of the transfer device.

A method and apparatus for fabricating a MEMS apparatus having a device layer with an optical surface that is supported by a pedestal on a planar support layer that is suspended for movement with respect to a base support by hinge elements disposed in a different plane from the planar support layer. The surface area of the optical surface is maximized with respect to the base support to optimized the fill factor of the optical surface and afford a high passband. The height of the pedestal is selected to position the device layer sufficiently above the base support to afford an unobstructed predetermined angular rotation about each axis. The hinges may be made of thin-film material, fabricated by way of surface micromachining techniques. The hinges are disposed underneath the device layer enabling the optical surface to be maximized so that the entire surface becomes usable (e.g., for optical beam manipulation). MEMS devices afford an array of MEMS mirrors with a high optical fill factor and high passband. Further, use of both bulk and surface micromachining techniques gives a MEMS device with a large and flat mirror and flexible hinges capable of a substantial rotational range at modest electrostatic drive voltages.

A robot joint and a robot using the robot joint is provided. The robot joint includes a first part and a second part configured to be rotatable with each other around a joint axis. A flexible printed circuit board is further included with a first fixing point and a second fixing point respectively fastened to the first part and the second part. The flexible printed circuit board is spiral-shaped prior to bending. With the relative rotation of the first part and the second part, the flexible printed circuit board is bent at various bending portions. This makes the robot joint more compact with a larger rotation range and a long lifetime in a cost effective way.

The aim of the invention is to provide a large-load gapless precise hook hinge. The hook hinge overcomes the disadvantages of a traditional two-DOF and three-DOF (degree of freedom) rotary hinge, that is, a hook hinge structure which is used in a six-DOF vibration isolation and positioning platform and adopts an angular contact bearing pretightening mode to remove the bearing clearance and achieve the effects of large bearing capacity and high precision. The hook hinge consists of four parts: an upper rotation body, an upper node fork, a cross axle component and a lower node fork. The upper rotation body and the upper node fork are movably connected together to form a first rotational degree of freedom. The upper node fork and the cross axle are movably connected together to form a second rotational degree of freedom. The cross axle and the lower node fork are movably connected together to form a third rotational degree of freedom. The large-load gapless precise hook hinge has the advantages of a compact structure, strong bearing capacity, high precision, a large rotational range of the hinge, long service time, convenient maintenance, etc. The large-load gapless precise hook hinge is suitable for the connection of other precise mechanisms besides a six-rod parallel positioning platform.

Rotary-sprinkling sprinkler comprises: a body which has a water inlet end and a water outlet end forming a waterway there-between; a surface cover component rotatablely disposed on the water outlet end of the body, equipped with water spray nozzles in communication with the waterway; a waterpower driving unit disposed in the waterway, while connected with the surface cover component by a rotating shaft; the waterpower driving unit is driven by the water flow in the waterway to drive the surface cover component to rotate. The invention drives the whole surface cover to rotate by water flow, achieves the rotary sprinkling water; every water spray nozzle on the surface cover rotates around the center of the whole surface cover instead of its self-center, therefore, the rotation scope of the water flow is relatively larger.

A simple and compact loader having a sufficient strength with brackets fixed on a working vehicle. Lift arms are pivoted at one ends thereof to respective brackets so as to be vertically swung by respective lift arm cylinders. Attachments are vertically swingably supported on respective tip portions of the lift arms. Bucket links are connected to the respective attachments so as to transmit the telescopic action of bucket cylinders. Each of the bucket links is offset laterally from each of the lift arms. The middle portion of each of the lift arms is disposed above a straight line connecting both ends of the lift arm to each other, so as to ensure a space for arranging a steerable wheel under the lift arm.

A heavy load three-dimensional rotating table capable of balancing overturning moment comprises a load installing rotating table, an inverted-U-shaped supporting base, a U-shaped base, a balance connection rod, a counter weight slider, an orientation rotating barrel and a rotating table base, and mainly ZYZ Euler angle three-dimensional adjustment is achieved. The load installing rotating table and the inverted-U-shaped supporting base form an upper orientation axis Z1 axis; the inverted-U-shaped supporting base and the U-shaped base form a pitching axis Y axis; and the orientation rotating barrel and the rotating table base form a lower orientation axis Z2 axis. The Z1 axis and the Z2 axis can meet the requirement of whole circle rotation, and the pitching axis Y axis can achieve pitchingrotation in the large range. The pitching axis is provided with a counter weight device balancing the overturning moment so as to balance the overturning moment generated due to pitching, and therefore the driving torque of a pitching axis driving motor can be reduced. The device has the beneficial effects that the bearing capacity is large, a power-off anti-overturning function is achieved, andthe mechanical system reliability is high.

The invention provides a wrist of a robot and the surgical robot. The wrist of the robot comprises a substrate, a hooke joint structure, a first transmission mechanism, a second transmission mechanism and a driving mechanism. The hooke joint structure is arranged on the substrate, and used for fixing a surgical instrument. The driving mechanism drives the first transmission mechanism and the second transmission mechanism to move, and the first transmission mechanism and the second transmission mechanism drive the hooke joint structure to rotate at the first freedom degree and the second freedom degree respectively. At least one of the first transmission mechanism and the second transmission mechanism is a linear transmission mechanism and used for linearly driving the hooke joint structure to move. The rotation of each freedom degree is independently controlled to be driven by the first transmission mechanism and the second transmission mechanism. At least one of the first transmission mechanism and the second transmission mechanism is the linear transmission mechanism and used for linearly driving the hooke joint structure to move. Due to the fact that linear driving can be precisely controlled, control precision is high.

The invention discloses a wrist of a two-degree-of-freedom industrial robot, which includes an autorotation drive mechanism and a pitch drive mechanism. The autorotation drive mechanism includes a power input shaft, a bevel gear set, and an autorotation gear shaft. The other end of the power input shaft is connected to the rotation power source, the other end of the rotation gear shaft is connected to the wrist end effector, the power input shaft and the rotation gear shaft are vertically arranged, and the power input shaft is set in the axis direction of the wrist base; The drive mechanism includes a pitch gear shaft. One end of the pitch gear shaft is externally connected to a pitch power source. The other end of the pitch gear shaft is connected to the wrist base. The pitch gear shaft is arranged in the axial direction of the wrist base. The wrist of this industrial robot sets the rotation drive mechanism and the pitch drive mechanism separately to realize the independent movement of the two degrees of freedom. The rotation range of each degree of freedom is large and does not interfere with each other. At the same time, its structure is simple, which is conducive to the balance of the forearm and the stable operation of the robot. sex.

A rotary electric shaver including a substantially disc-shaped outer cutter 18 having hair introduction openings and held in the upper part of the shaver main body 50 housing therein a motor, and an inner cutter that, while elastically contacting the inner surface of the outer cutter 18, is rotationally driven by the motor; and the shaver further including an outer cutter frame 14A provided on the shaver main body 50, and a skin protection rim 16 that is interposed between the outer cutter frame 14A and the outer cutter 18 to hold the outer cutter 18 and is elastically provided so as to be depressible with respect to the outer cutter frame14A.

A rotary electric shaver including a substantially disc-shaped outer cutter 18 having hair introduction openings and held in the upper part of the shaver main body 50 housing therein a motor, and an inner cutter that, while elastically contacting the inner surface of the outer cutter 18, is rotationally driven by the motor; and the shaver further including an outer cutter frame 14A provided on the shaver main body 50, and a skin protection rim 16 that is interposed between the outer cutter frame 14A and the outer cutter 18 to hold the outer cutter 18 and is elastically provided so as to be depressible with respect to the outer cutter frame 14A.

The invention discloses a novel symmetric three-rotation parallel mechanism, which comprises a static platform, a moving platform and a first active branched-chain, a second active branched-chain and a third active branched-chain which are used for connecting the static platform with the moving platform, wherein an annular guide rail is circumferentially arranged on the outer wall of the static platform, and the first active branched-chain, the second active branched-chain and the third active branched-chain have the same mechanical structure. By adopting the novel symmetric three-rotation parallel mechanism provided by the invention, each branched-chain has the same mechanical structure, the kinematics and dynamics properties have symmetry, the rotating central points inside the branched-chains coincide with each other, the mobility is mutually limited, and the three-dimensional rotation with quick space speed and large rotating range can be realized. The novel symmetric three-rotation parallel mechanism is suitable for satellite tracking positioning, robot shoulder / wrist posture adjustment and other occasions.

The invention relates to an aerial work platform, in particular to a bridge type aerial work platform. The bridge type aerial work platform comprises a machine base assembly, a wheel assembly, a telescopic arm assembly and a platform assembly. A horizontal arm is arranged at the upper end of the telescopic arm assembly, a gear is fixedly arranged on the upper surface of the horizontal arm, a sliding groove is formed in the inner ring of the gear, a rotary plate is arranged on the sliding groove, the upper end of the part, protruding out of the gear, of the rotary plate is connected with the platform assembly through a bolt, a screw rod device is arranged on the side of the part, protruding out of the gear, of the rotary plate, the screw rod device comprises an outer shell, a power driving device and a screw rod, the outer shell is integrally connected with the rotary plate, one end of the screw rod is in transmission connection with the power driving device, and the other end of the screw rod is meshed with the gear. The bridge type aerial work platform has the advantages of being capable of effectively expanding the rotating range of the platform.

A mainshaft head mechanism with parallel three shafts for performing multi-direction vertical and horizontal machining is composed of a fixed platform, threerotary sets distributed by 120 deg and connected to said fixed platform, three moving sets respectively linked to the rotay sets, three rod sets respectively linked to three moving sets, three spherical sets respectively linked to three rod sets, movable platform, and mainshaft unit installedon said movable platform. Said mainshaft unit can do longitudinal movement along Z axis and rotations around A axis and B axis.

The invention provides an automatic driving steering system. A vehicle body sensor arranged around a vehicle body is used to detect a surrounding environment; a calculation processing module is used to receive a detection signal of the vehicle body sensor, and calculate and output a steering signal. The system is provided with at least two wheels, which are steering wheels, in the same row, the steering wheels are connected to the vehicle body through a fixed frame, the bottom of the fixed frame is fixedly connected with an inner ring of a slewing bearing, an outer ring of the slewing bearingis provided with external teeth and is fixed to a wheel bracket, the wheel bracket is rotatably connected with the wheels, and the wheels are driven to move forward or backward by a hub motor; a steering actuator receives a steering signal from a calculation processing module, and can mesh with the external teeth on the outer ring of the slewing ring to drive the outer ring of the slewing ring torotate. The steering is performed by the teeth meshed with each other, so that a mechanical transmission structure is omitted; the steering of the vehicle is realized by the slewing bearing, so that the rotation of a larger angle can be realized.

The invention provides a three-lobule heart valve which comprises an annular flap frame that restricts a hole which passes through the flap frame and extends to two ends along the longitudinal direction as well as a first lobule, a second lobule and a third lobule that are arranged in the annular flap frame and do pivotal movement between a closing position and an opening position, wherein, the first lobule, the second lobule and the third lobule are connected with the flap frame by an articulated structure. The three-lobule heart valve reduces the rotation angle of vanes furthest, thereby ensuring the opening and the closing of the heart valve to be rapider and the plugging effect to be better. The lobules take the shape of sector sheets and have a plurality of lateral sides which are mutually matched with the inner surface of the flap frame and the lateral sides of other vanes, thus achieving the purpose that when the vanes are closed, the vanes are mutually meshed.

The invention relates to a wind power plant, comprising a rotor that can be rotated about a vertical axis, said rotor between two horizontal bearing planes disposed at a distance on top of each other comprising a plurality of rotor blades, which are disposed distributed on a circumferential circle, can each be pivoted about a vertical pivot axis, and the pivot range of which is delimited on both sides by a stop. In such a wind power plant, an improvement in the energy yield, while simultaneously ensuring another operation, is enabled in that the width of the rotor blades is smaller than approximately ⅓ the radius of the circumferential circle.

The invention relates to a pivoting device, which comprises a bearing carrier, a ball joint, a plurality of locating pins and a spacing ring, wherein the bearing carrier is provided with a containing groove; the ball joint is arranged in the accommodation groove; the surface of the ball joint is provided with a plurality of locating holes; the locating pins are arranged on the bearing carrier and can slide towards or away from the ball joint; when the bearing carrier and the ball joint relatively rotate to a specific position, the locating pins are respectively corresponding to part of the locating holes; the spacing ring is arranged along the opening of the accommodation groove and around the locating pins; and when the bearing carrier and the joint relatively rotate to specific position, the spacing ring abuts against the locating pins, so that the locating pins are clamped in the corresponding locating holes.

The invention discloses an air channel assembly with a through-flow air wheel, and a tower fan provided with the air channel assembly. The through-flow air wheel is arranged inside the air channel assembly; an air channel air inlet and an air channel air outlet are formed in the air channel assembly; the radial outer edges of the air channel air outlet, the air channel air inlet and the air channel assembly are located on the same circumference face; an air outlet grille is arranged at the air channel air outlet; and the radial outer edge of the air outlet grille is located on the circumference face. In the air channel assembly with the through-flow air wheel, and the tower fan, the radial outer edge of the air outlet grille is located on the circumference face of the radial outer edge ofthe air channel assembly; the radius of the air outlet face of the air outlet grille is equal to the radius of an inner rotor of the tower fan, and therefore interference of the air outlet griller anda shell of the tower fan can be avoided during rotating of the inner rotor; and in this way, the rotating range of the inner rotor can be enlarged, the air-swept range is enlarged, and 360-degree airsupply can be achieved.

The invention provides a redundant-drive three-shaft series-parallel rotary platform. The series-parallel rotary platform consists of a base platform (1), a central platform (2), an upper platform (5), four drive branches distributed around and a central limiting branch, wherein the central limiting branch is fixedly connected with the central platform (2) and is connected with the upper platform (5) by a fifth universal joint (U5); the central platform (2), the upper platform (5), the central limiting branch and the drive branches form a two-shaft parallel rotary platform with redundant drive; and the base platform (1) is connected in series with the two-shaft parallel rotary platform by a first rotation pair (R1) to form the redundant-drive three-shaft series-parallel rotary platform. The redundant-drive three-shaft series-parallel rotary platform has the characteristics of simple and symmetric structure, high loading capacity, small performance difference within work space and the like.

The invention discloses a microscope binocular stereo vision measurement device based on telecentric objectives. The device comprises a mounting fixing unit, a linear adjustment unit and image acquisition units. The mounting fixing unit comprises a support plate which is horizontally arranged and a mounting plate which is vertically arranged on the support plate. A three-axis displacement stage is arranged on the support plate. A tiny sample piece to be measured is placed on the three-axis displacement stage. The linear adjustment unit comprises a linear translation stage and a guide rail which is arranged on the linear translation stage. The linear translation stage is arranged on the mounting plate through a mounting bottom plate. Two image acquisition units are symmetrically arranged around the axis of the mounting plate. Each image acquisition unit comprises a telecentric objective, a CCD image sensor, a rotating platform and a slider. Each telecentric objective is connected with a CCD image sensor through a C interface. Each CCD image sensor is arranged on a rotating platform. Each rotating platform is arranged on the guide rail through a slider. The measurement device provided by the invention has the advantages of adjustable optical path angle, high measurement accuracy, good accuracy and the like.

The invention provides a cooling device for metal product casting. The cooling device comprises a bottom plate. A box body is fixedly mounted at the top of the bottom plate. A cross beam is fixedly mounted in the box body. A first motor is arranged on the left side of the box body. The right side of the first motor is fixedly connected with a drive rotating wheel. A feeding rotating wheel and a driven rotating wheel are arranged on the left side of the box body. According to the cooling device for metal product casting, a water pump draws out water of a water collection box to be sprayed to objects on a conveying belt, and therefore the objects can be cooled faster; through the arrangement of condensation pipes, hot gas of a cast metal product can be cooled, the water in the water collection box can be cyclically used, and energy saving and environment friendliness are achieved; when a spraying head flushes and cools the metal product, scraps flow into a scrap filter screen through screen holes, and the water falling effect is improved through vibration of vibrators; and the metal product is subjected to dual cooling through the spraying head and a fan, the cooling efficiency of the metal product is improved, and the casting work efficiency is improved.

The invention discloses a novel wireless video repairing device in the design field of repairing devices. The technical scheme is that the device comprises a trolley platform and a control platform, wherein the trolley platform is wirelessly controlled by the control platform; the trolley platform comprises a trolley platform microcontroller module, a camera, a lens control system, a trolley driving system, a wireless digital transmission module receiving end, a wireless digital transmission module sending end, a trolley platform voltage stabilization module, a lead-acid accumulator and a transmitting antenna; and the control platform comprises a control platform microcontroller module, a display system, keys, a wireless digital transmission module sending end, a wireless video transmission module receiving end, a control platform voltage stabilization module, a lead-acid accumulator and a receiving antenna. By wireless control, the wireless video repairing device can wirelessly transmit images, so that wireless detection of equipment faults is realized, and the detection process is more flexible and convenient.

The invention discloses a parallel type solar two-shaft tracking mechanism which comprises a solar battery component flat plate (1), a flat plate supporting framework (2), a support shaft (3), a fixed support frame (4), linear drivers (5, 6), rotation hinges (8, 9, 10), ball hinges (11, 12), and the like. The parallel type solar two-shaft tracking mechanism is characterized in that the flat plate supporting framework (2) used for fixing the battery component flat plate (1) is sleeved on the support shaft (3) through the rotation hinge (7), both ends of the support shaft (3) are respectively connected with the extending ends of the fixed support frame (4) and the extending end of the linear driver (5) through the rotation hinges (8, 9), the other end of the linear driver (5) is connected with a ground stand (0) through a rotation pair (10), and the axial lines of the three rotation hinges (8, 9, 10) are arranged in parallel and are vertical to the axial lines of the rotation hinges (8, 9) on the support shaft (3); one side end of the flat plate supporting framework (2) is connected with the extending end of the other linear driver (6) through the ball hinge (11), and the other end of the linear driver (6) is connected with the ground stand (0) through the other ball hinge (12). The mechanism has simple structure, controls decoupling, and is easy to manufacture and process. When the two linear drivers (5, 6) carries out the driving function, the mechanism can automatically track so as to realize the variation rule of sunlight azimuth angles and altitude angles.

The invention relates to a wind power plant, comprising a rotor that can be rotated about a vertical axis, said rotor between two horizontal bearing planes disposed at a distance on top of each other comprising a plurality of rotor blades, which are disposed distributed on a circumferential circle, can each be pivoted about a vertical pivot axis, and the pivot range of which is delimited on both sides by a stop. In such a wind power plant, an improvement in the energy yield, while simultaneously ensuring another operation, is enabled in that the width of the rotor blades is smaller than approximately ⅓ the radius of the circumferential circle.