134 results about "Rotational freedom" patented technology

Methods and systems are provided for nautical stationkeeping of free-floating objects. In one example, a method includes adjusting translational motion of a body freely floating in water by rotating the body. The translational motion may be adjusted, for instance, to maintain the body within a geographic area. In certain examples, the adjustment of the translational motion may be realized via a Magnus effect induced by rotating the body. The body may be configured as, for example, a free-floating object such as a wave engine.

An adverse situation caused by bending of a connection portion between an active bending portion and a passive bending portion is prevented. In an endoscope provided with an active bending portion and a passive bending portion which are sequentially arranged from a distal end and a connection cylinder (50) which connects the active bending portion and the passive bending portion, the active bending portion and the passive bending portion each include a plurality of joint cylinders (30, 40), a coil member (60) which passes through an operation wire (90) for bending operation of the active bending portion is fixed to the connection cylinder (50), and a notch (43) for improving the rotational freedom of a joint cylinder (40A) of the passive bending portion which is connected to and rotates with the connection cylinder (50) is formed in the vicinity of the coil member (60).

This utility model provides a tool holder gripping mechanism, relating to the field of CNC machine tool gripping technology. The tool holder gripping mechanism includes a gripping sleeve, a base, and a mounting block. A guide key is provided on the end face of the gripping sleeve. The base has a mounting hole for inserting the gripping sleeve, allowing the gripping sleeve to rotate around the axis of the mounting hole after insertion. The mounting block is mounted on the base, and at least one positioning post is provided in the mounting block. The positioning post is located on the outside of the gripping sleeve, and restricts the rotation stroke of the gripping sleeve when it rotates clockwise or counterclockwise. The gripping sleeve has a certain degree of rotational freedom, which makes it easy for the guide key and the tool holder keyway to be precisely aligned when the gripping sleeve rotates, allowing the guide key to be smoothly inserted into the tool holder keyway, thus avoiding tool jamming when gripping the tool holder.

This application provides a power transmission structure and vehicle, belonging to the field of vehicle transmission technology. The power transmission structure is used to transmit power from a first splined shaft to a second splined shaft. It includes a sliding sleeve and a universal joint. One end of the sliding sleeve is sleeved and fixed to the second splined shaft. One end of the universal joint is provided with a connecting shaft, which slides through the sliding sleeve and has a circumferential limiting structure between it and the sliding sleeve. The circumferential limiting structure is used to limit the relative rotational freedom between the connecting shaft and the sliding sleeve. The other end of the universal joint is provided with an internal spline hole, which slides through the first splined shaft and has an axial limiting member between it and the first splined shaft. The axial limiting member is used to limit failure when the axial force exceeds a threshold range. Compared with the traditional drive shaft with flanges at both ends for connection, the power transmission structure provided by this application can meet the power transmission needs in compact and narrow spaces, and greatly improves the convenience of disassembly, assembly and maintenance.

The utility model discloses a profiling snow scraping shovel. The profiling snow scraping shovel comprises a bucket body, a shovel blade, a rotary connecting piece and an elastic reset piece. The bucket body comprises a front plate and a back plate; the front plate and the back plate are oppositely arranged, and a flat groove for installing a scraper knife is formed in the landing side of the bucket body. And the scraper knife is rotationally mounted on the back plate through the rotary connecting piece, so that the scraper knife has a rotational degree of freedom in the plane where the flat groove is located. The rotary connecting piece is a set of shaft sleeves, and a first receding hole set matched with the shaft sleeves is formed in the scraper knife. And the elastic resetting piece accumulates elastic restoring force under the rotation of the scraper knife so as to drive the scraper knife to reset after the external force is removed. The snow scraping shovel further comprises a fastener which is used for directly or indirectly connecting and fixing the front plate and the back plate. When the scraper knife makes contact with the uneven ground, the working angle is adjusted in a self-adaptive mode, the snow removing efficiency is improved, and working noise and equipment abrasion are reduced.

Featuring an anti-rotation device: at least one locking element (2) provided on a moving element configured to move longitudinally without rotation and projecting outwards in a radial direction from the surface of the moving element at at least one point, and at least one guide element (5) having a groove and configured to be arranged in a recess of an enclosure of the moving element such that its groove is arranged substantially parallel to the longitudinal axis of the moving element, and to guide the protruding part of the locking element (2) in its groove during longitudinal movement of the moving element, wherein the at least one guide element (5) is designed such that it has no degree of freedom along the longitudinal axis of the groove, but at least the rotational degree of freedom about an axis parallel to the longitudinal axis of the groove.

This invention discloses an internal spraying mechanism for aluminum billet cutting operations using a pump, comprising a roller section with four butterfly wheels, each butterfly wheel having a convex curved surface, and the convex curved surfaces of two coaxial butterfly wheels coinciding with the same spatial spherical surface; a spraying component, the four butterfly wheels being movably connected by a connecting block, the spraying component including a main rod section connected to a plurality of annularly arrayed nozzle rods, the nozzle rods being tangentially connected to a straight rod section; a water delivery rod communicating with the main rod section of the spraying component, the liquid in the water delivery rod being sprayed out from the nozzle rods of the spraying component; the main rod section of the spraying component being movably assembled with the connecting block, the spraying component having rotational freedom around its own axis; and the roller section contacting the inner wall of the axially penetrating cavity of the aluminum profile. This invention employs a probing nozzle design to spray liquid in a rotating manner into the hollow cavity of the aluminum profile, effectively removing metal debris generated during cutting, facilitating each sawing operation of the aluminum billet using the pump.

The utility model provides a direct-drive motor, belongs to the technical field of motors, and solves the problems that an existing direct-drive motor in the prior art is complex in internal structure and large in occupied space. The motor comprises a motor base, a rotating shaft assembly and a driving assembly, the two ends of the motor base are provided with a first end cover and a second end cover respectively, the rotating shaft assembly comprises a hollow rotating shaft, the hollow rotating shaft is arranged between the first end cover and the second end cover, and the hollow rotating shaft has rotational freedom; the flange is connected with the hollow rotating shaft; the bearing is provided with a first part and a second part, the first part is fixedly connected with the motor base, the second part is connected with the flange and the hollow rotating shaft, the first part and the second part are connected in a relatively rotating mode, and the driving assembly comprises a stator arranged between the hollow rotating shaft and the motor base and fixedly connected with the motor base; the rotor is arranged between the stator and the hollow rotating shaft, one side of the rotor is rotationally connected with the hollow rotating shaft, and the rotor is fixedly connected with the hollow rotating shaft.

This utility model provides a rotating handle for vehicles and a vehicle, belonging to the technical field of vehicle parts. It includes: a fixed base; a first rotating base, hinged to the fixed base via a first rotating shaft; a second rotating base, hinged to the first rotating base via a second rotating shaft; and a handle strap, the end of which is fixedly connected to the second rotating base. The axis of the first rotating shaft is not parallel to the axis of the second rotating shaft. The handle strap has a first degree of rotational freedom about the first rotating shaft and a second degree of rotational freedom about the second rotating shaft. The advantages of this utility model are: the rotating handle has two different rotation angles, and the handle strap can achieve multi-directional adjustment through the superposition of the two rotation angles, making it more flexible to use and allowing for easy adjustment to a more ergonomic grip angle.

A dental robot includes a platform and a suspension system. The suspension system supports the platform and automatically compensates for weights of the platform and a robot arm, end effector, and tooth clamp attached to the platform. The suspension system maintains a constant height of the platform above a base, absent an external force on the tooth clamp. The suspension system allows position and orientation of the platform to change with three degrees of positional freedom and three degrees of rotational freedom, relative to the base, in response to an external force on the tooth clamp, such as a result of movement (change in position and / or orientation) of a subject. A rigid connection between the tooth clamp and the platform ensures that position and orientation of the platform remains fixed, relative to the subject's teeth, in response to movement of the teeth.

The application discloses a kind of steel ball multi-degree-of-freedom clamping detection device and detection method, including base and detection component, first jaw pair and second jaw pair are equipped on base, detection component is fixed on base for obtaining the detection signal of steel ball clamped by first jaw pair or second jaw pair, the clamping panel of first jaw in first jaw pair is equipped with several ball bearings, first jaw pair clamps steel ball when limiting steel ball and making steel ball have rotational freedom, the two ends of the clamping surface of second jaw in second jaw pair are equipped with power contact wheel, when second jaw pair clamps steel ball, steel ball is driven to rotate by power contact wheel, base is equipped with lifting adsorption table, lifting adsorption table includes lifting pipe, rotating motor and suction cup, the bottom of lifting pipe is connected with rotating motor, rotating motor drives suction cup to rotate, lifting adsorption table is located between first jaw for driving the rotation of steel ball adsorbed.The application can directly drive steel ball to rotate while clamping steel ball, and then complete steel ball detection.

The invention relates to an electroplating clamp height adjusting device. The device comprises a mounting plate used for loading an upper clamp; the locking mechanism is movably arranged on the mounting plate and has a locking state and an unlocking state; the gear is connected with the locking mechanism, the locking mechanism in the locking state can limit rotation of the gear, and the locking mechanism in the unlocking state can release the gear so that the gear can obtain the rotation freedom degree; the rack is arranged on the mounting plate in a lifting and moving manner, is meshed with the gear and is used for loading the lower clamp; the lifting driving mechanism is in transmission connection with the rack so as to drive the rack to ascend and descend. According to the scheme, the locking mechanism can quickly lock or release the gear, the height positions of the upper clamp and the lower clamp can be flexibly adjusted, and the clamping requirements of different circuit boards are met; meanwhile, the meshing reliability of the gear and the rack is high, the tooth skipping phenomenon is avoided, it is guaranteed that the upper clamp and the lower clamp stably clamp the circuit board, the rack is prevented from deforming, and the service life of the clamp mechanism is guaranteed.

This invention relates to a highly mobile spherical robot for lunar exploration, comprising a tread, a hub, a main frame, a steering gravity pendulum assembly, and a propulsion drive device. The tread employs a flexible mesh structure, with its two side edges fixed to the spherical hub. The steering gravity pendulum assembly achieves lateral oscillation between the gravity pendulum and the main frame via gear transmission. Two propulsion drive motors are symmetrically arranged on the main frame, transmitting torque to the hub through gears meshing with an internal gear ring. Four spokes extend from each side of the main frame, with rollers mounted at the ends of the spokes. These rollers roll in grooves on the hub, supporting the main frame and providing rotational freedom between the main frame and the hub. This spherical robot has a simple structure and is easy to control. Its flexible mesh tread structure improves the robot's ability to traverse the sandy, soft, and undulating lunar surface, and its gravity pendulum-based structure provides self-balancing characteristics, making it suitable for autonomous exploration activities in the lunar environment.

This application relates to the technical field of emulsion explosive loading equipment, and in particular to a multi-degree-of-freedom grasping and positioning mechanism for an emulsion explosive loading robot, comprising a grasping component, a positioning component, and an adjustment component. The grasping component features flexible contact pads and raised structures to increase gripping friction and reduce damage; the positioning component achieves horizontal and rotational freedom through slide rails, sliders, and a rotary table; the adjustment component employs telescopic rods and universal joints to enhance attitude adjustment capabilities. This application, through optimized mechanical structure design, solves the problems of insufficient flexibility and poor adaptability of existing equipment, significantly improving the efficiency and accuracy of grasping and positioning, and providing an efficient and precise solution for the emulsion explosive loading process.

The invention discloses a control surface rotation free gap measuring method. A preload F0 is applied to a loading point of the control surface in the normal direction of the control surface and then released, and the displacement value of a rear edge measuring point of the control surface with a neutral position as a starting point at the moment is measured and serves as initial rotation tangential displacement S0; a load F1 is applied to the loading point in the normal direction of the control surface, and the rotation tangential displacement S1 of the rear edge measuring point of the control surface at the moment is measured; after the F1 is unloaded, a load F2 which is opposite to the F1 in direction and equal to the F1 in size is applied upwards to the loading point, and the rotating tangential displacement S2 of the control surface trailing edge measuring point at the moment is measured; by taking the S0 as a starting point, calculating a displacement S3 generated by loading the F1 after unloading the F1 and a displacement S4 generated by loading the F2 after unloading the F2; and based on S3 and S4, calculating a final control surface trailing edge measurement point rotation free gap displacement S, and finally, calculating a final control surface rotation free angle theta. The method is simple to operate and accurate in result, can avoid measurement result errors, and ensures that the aeroelastic stability of the aircraft meets the design requirements.

This utility model discloses a multi-degree-of-freedom adjustable positioning fixture device for metal parts processing, belonging to the field of positioning fixture technology. The multi-degree-of-freedom adjustable positioning fixture device for metal parts processing includes a base. A fixing component for fixing the fixture is mounted on the top of the base. A high-degree-of-freedom rotating component is rotatably mounted on the top of the fixing component. A clamping component for positioning and clamping is mounted on the rotating component. The fixing component includes a base cylinder, an electric push rod, a moving plate, small steel balls, a top plate, and a rotating hole. By setting the base, fixing component, and rotating component, the rotating ball in the rotating component can rotate on the top plate, facing different directions. After determining the direction, the electric push rod can be activated to push the moving plate upward, thereby arranging the small steel balls above the moving plate around the rotating ball, thus limiting the bottom of the rotating ball and fixing it, thereby fixing the rotating ball and improving the rotational freedom of the fixture.

The application belongs to the field of processing equipment, and proposes a kind of analog small hole drilling processing fixture, including support base, tool guide and workpiece mounting seat.The front drill sleeve support seat, rear drill sleeve support seat and workpiece mounting seat are all installed on the support base, and the axial position thereof can be adjusted.The clamping bolt is clamped on the notch opened by the replaceable workpiece, and simultaneously limits the axial freedom and rotational freedom of the workpiece, so that the workpiece can be quickly clamped and released by loosening the clamping bolt.The application can quickly clamp and replace the workpiece, ensure the axiality and accuracy, improve the efficiency of hole drilling processing test, and reduce the experimental cost.The position of drill sleeve and workpiece can be adjusted for experiment, the design parameters of processing equipment are optimized, and the processing effect of hole drilling equipment under different working conditions is optimized.

This invention provides a support plate that restricts rotational freedom, comprising a connector, a top cover, and a base. One end of the connector is used to connect to a leveling leg, and the end of the connector away from the leveling leg has a protrusion. One end of the base has a support plate for contacting a support surface. The top cover is connected to the base, and the interiors of the top cover and the base have connected cavities. The protrusion of the connector is located within the cavity. The base can rotate relative to the connector, but its rotation along a first direction is restricted. The first direction is the direction in which the connector extends towards the leveling leg. This invention effectively restricts the rotation of the support plate relative to the leveling leg, avoiding structural interference and safety issues caused by the rotation of a non-circular support plate.

1. Name of the product in this design: Multi-degree-of-freedom rotation mechanism. 2. Purpose of this design: to clamp workpieces and provide rotational freedom to the clamped workpieces. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present invention discloses a smart toilet cleaning device comprising a frame 1, a nozzle, a first rotary drive mechanism, and a second rotary drive mechanism, wherein the first rotary drive mechanism is mounted on the frame and configured to drive the nozzle to rotate around a first pivot axis, the second rotary drive mechanism is used to connect the first rotary drive mechanism and the nozzle and is configured to drive the nozzle to rotate around a second pivot axis, and the first pivot axis and the second pivot axis are not parallel. [Effect] By installing a first and second rotational drive mechanism, the nozzle is given two different degrees of rotational freedom, allowing for a variety of rotation angles. This enables it to cover a larger area when cleaning the toilet, resulting in a higher cleaning effect.

A nuclear magnetic logging instrument centralizing device with rotational degree of freedom belongs to the field of logging instrument centralizing devices and comprises a centralizing body, centralizing prisms, a split limiting sleeve and a split threaded sleeve, the centralizing body is provided with connecting internal threads, the centralizing prisms are arranged on the outer circumferential surface of the centralizing body, and the split limiting sleeve is sleeved with the split threaded sleeve. The split limiting sleeve and the split threaded sleeve are circular sleeve bodies formed by combining split tile sleeves, an inlay flange is arranged on the inner side arc surface of the split limiting sleeve, a hanging convex ring is arranged on the outer side arc surface of the split limiting sleeve, a connecting ring groove is formed in the inner side arc surface of the split threaded sleeve, and a connecting external thread is arranged on the outer side arc surface of the split threaded sleeve; the centralizing body can be hung on the nuclear magnetic logging instrument through the structural cooperation of the split limiting sleeve and the nuclear magnetic logging instrument, and the rotational degree of freedom of the centralizing body relative to the nuclear magnetic logging instrument can be established through the structural cooperation of the split threaded sleeve and the split limiting sleeve. The centralizing body keeps a dynamic centering centralizing state during self-adaptive rotation, meanwhile, the space posture and the motion state of the nuclear magnetic logging instrument cannot be disturbed and influenced, and the logging precision is guaranteed.

A compensation device for a load bearing, a rail bearing assembly and a material transport system. The compensation device cooperates with a load bearing through link assemblies that have a link housing and link bearings to allow rotational self-alignment of the rail bearing about each of a roll axis, a pitch axis and a yaw axis. In this way, it responds to a load that is being carried by the load bearing through a rotational freedom of motion between the compensation device and the load bearing at a location that is at or near a center of action of the load bearing while limiting at least some translational freedom of motion. The compensation device may be either directly secured to the load bearing through the link assemblies or indirectly secured to the load bearing through an inner block and an outer block that in turn are secured to one another through the link assemblies that may be made up of numerous link couples. One form of the compensation device may provide three-link connectivity while another form provides two-link connectivity. The compensation device is especially applicable to linear bearings and linear rails where imprecise surfaces or rail non-parallelism are present.

According to different embodiments, the trough holding device (200) can have: a holding receptacle (102) having a first coupling region (102k) and a holding region (102a) for holding a drain trough extending along a direction; a holding seat (104) having a second coupling region (104k); wherein the first coupling region (102k) and the second coupling region (104k) form a hinge (106) assembled, which provides the holding receptacle (102) and the holding seat (104) with a rotational freedom (111) relative to each other along the direction; a locking device (108) designed to, in a first state, block the rotational freedom (111) so that the holding receptacle (102) and the holding seat (104) are locked to each other, and in a second state, release the rotational freedom (111) so that the holding receptacle (102) and the holding seat (104) can move relative to each other.

This invention provides a foot structure for a humanoid robot, including a leg connecting rod. The lower end of the leg connecting rod is connected to a connecting seat mounted above a rear foot plate via a cross shaft. Two ear plates are provided at one end of the rear foot plate, and these ear plates are connected to a connecting frame mounted on the rear side of the leg connecting rod via a back motor. A front foot plate is movably connected to one side of the rear foot plate. A rear motor connecting seat is provided at the other end of the rear foot plate opposite the ear plates, and a front motor connecting seat is provided at one end of the front foot plate. A front motor is located between the front motor connecting seat and the rear motor connecting seat. This invention increases the rotational freedom of the rear and front foot plates, improves the terrain adaptability of the humanoid robot, and is more conducive to the robot standing and walking on uneven ground. Furthermore, the 6-dimensional force sensor can measure the force and torque in the X, Y, and Z directions in real time, which is more beneficial for the control of the humanoid robot.

The utility model belongs to the technical field of numerical control rotary tables, and particularly relates to a numerical control rotary table machining end installation structure which comprises a shell, an installation end, a machining end and a driving assembly, the installation end and the machining end are arranged on the shell, the machining end is provided with a table board with rotational freedom, the driving assembly is arranged on the shell of the machining end, and an installation groove is formed in the shell of the machining end. The table top is arranged in the mounting groove through the driving assembly, an inner stator of the driving motor is fixed to the fixing base, an outer rotor of the driving motor is fixed to the rotating base, and the outer ring base is detachably and fixedly connected with the side wall of the mounting groove through a first bolt set. And the table top is detachably and fixedly connected with the rotating seat by virtue of a second bolt group. According to the driving assembly, the driving assembly is integrally installed in the installation groove, disassembly can be completed only by disassembling the first bolt set and the second bolt set during installation, maintenance and overhaul, the number of contact faces needing to be adjusted and matched is reduced, and the precision of the numerical control rotary table can be guaranteed.

The application provides a slender structure space transformation device for a wind tunnel laboratory, and belongs to the technical field of wind tunnel experiments.The device comprises a multi-axis frame, a suspension assembly, three-axis servo motors, a plurality of encoders and a central control system.The multi-axis frame has rotational freedom degrees around the X-axis direction, the Y-axis direction and the Z-axis direction of a three-dimensional coordinate system.The suspension assembly is connected to the inner side wall of the multi-axis frame and is used for suspending a test model to be tested.The three-axis servo motors are used for driving the rotation of the multi-axis frame.The plurality of encoders are connected to the three-axis servo motors and receive rotation angle signals.The central control system is electrically connected to the three-axis servo motors and the plurality of encoders, and is suitable for controlling the operation of the three-axis servo motors to accurately adjust the space posture of the test model.The slender structure space transformation device for the wind tunnel laboratory has the technical effects of high posture adjustment precision, simple adjustment and accurate control of the posture of the test model for the slender structure in the wind tunnel experiment.

This invention discloses a connection structure and an exoskeleton, relating to the technical field of exoskeletons. The connection structure includes a swing arm, a sliding base assembly, a rotating base assembly, a rotating component, and a mounting part. The sliding base assembly is slidably connected to the swing arm, and the sliding direction of the sliding base is consistent with the length direction of the user's limb. The rotating component is mounted on the sliding base assembly or the rotating base assembly, so that the rotating base assembly is rotatably connected to the sliding base assembly, and the rotating base assembly rotates along the circumferential direction of the user's limb. The mounting part is connected to the rotating base, allowing the user to restrain their limb. The technical solution provided by this invention improves the rotational freedom of the mounting part and the connection structure under dynamic conditions, enhancing user comfort.

A smoke evacuation flow regulator for use with a suction source to rapidly remove excess smoke during an endoscopic surgical procedure is described. The smoke evacuation regulator may include a body having a gas pathway and a knob assembly threadably attached to the body that is sized to completely open or completely close the gas pathway in a single revolution of the knob assembly. The head of the knob assembly may be sized and shaped to permit tactile determination of the rotational position of the knob assembly in low vision situations. The body of the smoke evacuation flow regulator may include a knob assembly retaining arm that cooperates with a disk or extension on the knob assembly to allow rotational freedom of the knob assembly, but prevent inadvertent removal of the knob assembly from the body during use.

Filtering pulley (1) for an accessory transmission of an internal combustion engine, comprising a hub (2), an annular crown (3) provided with a profile configured to cooperate with an endless transmission element (5), externally coaxial around an axis (A) to the hub (2) and supported in rotationally free motion on the hub, and a filtering unit (4) for transmitting the torque interposed between the hub (2) and the crown (3) and comprising a torsion spring (11), a carrier (12) and a torque limiting joint (20), the pulley (1) comprising a first and a second rolling support (6', 6'') respectively operationally interposed between said head element (7) and said hub (2).

A vehicle-mounted display screen and vehicle are disclosed, applicable to the field of screen displays. The vehicle-mounted display screen includes a mid-frame, a backlight module, and a screen module. The mid-frame is provided with a first positioning part, and the backlight module is provided with a second positioning part at a position opposite to the first positioning part. This not only positions the mid-frame in a predetermined position on the backlight module, reducing assembly errors, but also effectively restricts the movement of the mid-frame, allowing it to better withstand external forces and vibrations during use, thus improving the stability and reliability of the mid-frame. The mid-frame is provided with a first fixing part, and the backlight module is provided with a second fixing part at a position opposite to the first fixing part. The first fixing part and the second fixing part are fixedly connected, further enhancing the stability and reliability of the mid-frame. The distance between the first positioning part and a first corner of the screen module is less than the distance between the first fixing part and the first corner, improving positioning accuracy and better constraining the movement and rotational freedom of the mid-frame, thus enhancing its stability and reliability.