148 results about "Ball spline" patented technology

A ball spline having reinforcement bush parts includes a spline shaft having concave track grooves formed to extend along the longitudinal direction thereof; a nut part in which the spline shaft is inserted and movable along the longitudinal direction thereof; and a plurality of balls provided between the nut part and the spline shaft to circulate, wherein: the nut part includes a nut which is a hollow body where the spline shaft is inserted, and retainers which are hollow bodies which are provided at longitudinally opposite sides of the nut and into which the spline shaft is inserted; two spline parts and two reinforcement bush parts are provided at the nut part; some of the balls circulate and move between a track groove and a load track groove and along a no-load circulation part; and the remainder of the balls roll circulate and move along the reinforcement bush parts.

The invention discloses a reverse type annular tooth groove planetary roller screw which comprises a nut, a screw rod, a plurality of rollers and a retainer, a multi-head internal thread is arranged in the nut, the rollers and the screw rod are both of an annular tooth groove structure without a helix angle, and the annular tooth grooves of the rollers are meshed with the internal thread of the nut and the annular tooth grooves of the screw rod respectively; first gears are machined at the two ends of the annular tooth groove of the lead screw, second gears are machined at the two ends of the annular tooth groove of the roller, and the first gears are meshed with the multiple second gears at the same time. The retainer is of an integral flexible retainer structure, and the pin rollers have the self-adaptive capacity in multiple directions in the circumferential direction and the radial direction through the retainer. And an arc-shaped roller path is designed on the screw rod and is matched with the ball spline housing to play a linear rolling guiding and rotation stopping role on the screw rod. The reverse lead screw has the advantages of being large in transmission ratio, compact in structure, easy to machine and assemble, low in cost, good in self-adaptive performance, high in positioning precision, good in reliability and the like.

The utility model discloses a ball spline ZR shaft mounting head, and belongs to the technical field of precision chip processing. The ball spline ZR shaft mounting head comprises a bottom plate, and a linear sliding block module is fixedly mounted on the surface of the bottom plate. According to the ball spline ZR shaft mounting head, the Z-axis synchronous wheel assembly rotates, so that the synchronous belt pressing block moves along with the Z-axis synchronous wheel assembly and drives the suction nozzle rod support to move, then the spline housing assembly and the suction nozzle move in the direction of a precision chip, and the R-axis stepping motor works to drive the R-axis synchronous wheel assembly to move; the suction nozzle rod synchronous belt wheel moves and drives the suction nozzle to rotate, at the moment, a vacuum pump air pipe is connected into the air pipe rotating joint, air flow reaches the suction nozzle through the ball spline shaft for vacuumizing, so that the precision chip is sucked, the movement stability of the Z axis is high, and the precision of sucking the precision chip by the suction nozzle is high; not only is the suction rate of the precision chip improved, but also the processing efficiency of the precision chip is improved.

The invention discloses a porous medium static pressure air floatation spline which comprises a spline shaft, a spline sleeve outer sleeve, an air bearing, a spline sleeve, a flange sleeve, a valve plate and a porous medium. The air floating spline is cylindrical, a plurality of air paths and static pressure cavities are formed in the air floating spline, porous media are mounted in trapezoidal grooves of the spline housing, and the internal static pressure cavities enable circumferential torsional moment applied to the spline shaft to be borne by the porous media and static pressure supports between trapezoidal tooth slopes on the spline shaft when the spline works; radial force applied to the spline shaft is borne by a static pressure support between the porous medium and the inclined plane of the trapezoidal teeth and a static pressure support on the inner ring of the air bearing; the axial load applied to the outer sleeve of the spline housing is borne by the annular static pressure cavity and the annular static pressure cavity; according to the porous medium static pressure air floatation spline, abrasion of the spline in the working process is reduced, and the problem that the spline precision is affected due to abrasion after a traditional ball spline works for a period of time is solved.

The utility model provides a lightweight high-speed parallel robot, relates to the technical field of robots, and solves the technical problems that in the prior art, the design of a parallel robot has defects, a rotating shaft adopts a ball spline shaft for transmission, and if a spline is abraded or a ball is damaged, normal operation of transmission can be influenced. The utility model provides a lightweight high-speed parallel robot which comprises a movable platform, a static platform and a rotating unit, the rotating unit comprises a first shaft assembly, a second shaft assembly, a first sliding part and a second sliding part, and the first end of the first shaft assembly is connected with the static platform; the second end of the first shaft assembly penetrates through the first sliding piece and then is connected with the second sliding piece. The second end of the second shaft assembly is connected with the movable platform, and the first end of the second shaft assembly penetrates through the second sliding piece and then is connected with the first sliding piece, so that the rotating unit can achieve torque transmission and meanwhile can conduct telescopic movement, and movement is flexible.

The embodiment of the invention provides a ball spline and a transmission assembly, and the ball spline comprises a spline shaft which is provided with a first guide groove in the radial direction; the spline shaft sleeve is provided with a spline, and an integrated sealing ring and a dustproof cover are symmetrically arranged on two sides of the spline; a first ball channel is formed in the spline, and a second guide groove is formed in the inner ring of the spline in the radial direction; the first guide groove and the second guide groove form a second ball channel; the first ball channel and the second ball channel are communicated through the integrated sealing ring to form a ball channel. The spline shaft is matched with the guide groove of the spline to form the continuous ball channel, and the limiting structure of the integrated sealing ring and the dustproof cover is combined, so that the step defect of the traditional sectional design is eliminated, the friction resistance and abrasion are reduced, the sealing performance and the connection reliability of the dustproof cover are improved, and the transmission precision and stability are improved.

The present application discloses a robotic force-controlled polishing end effector with active suppression, comprising a rotary motion component, a constant force adjustment component, a motion decoupling component, and a polishing disc component; the rotary motion component transmits rotary power to a ball spline via a spline shaft; the constant force adjustment component transmits axial force to the ball spline, which can move axially while rotating synchronously with the motor, thereby achieving decoupling of rotation and axial movement, while simultaneously monitoring the force applied to the polishing disc component in real time; the polishing disc component is connected to the ball spline to achieve synchronous rotation and synchronous telescopic movement with the ball spline. The present application can achieve precise control of axial force and rotational speed, while actively suppressing vibration during the polishing process. The overall structure is simple and compact, easy to control, with high force control accuracy and a high response bandwidth.

An apparatus for aligning a bioprocessing drive head includes an assembly of rotating and sliding bearings configured to operatively connect a drive motor to a rotatable shaft, a drive head operatively connected to the rotatable shaft, the drive head configured to rotate an impeller within a bioprocessing vessel. The apparatus further including a linear movement mechanism operatively connected to the rotary ball spline mechanism and / or the rotatable shaft. The linear movement mechanism being configured to move the drive head linearly via the rotatable shaft into operative contact with the impeller, without linearly moving the drive motor.

The utility model discloses an outer cylindrical guide sleeve inner ball spline, and relates to the field of mechanical transmission. By arranging eight groups of outer ball channels on the outer wall of the rectangular shaft and adopting high-bearing plane ball channel stress points on four sides, compared with a linear ball guide rail which can only be stressed on one side, the four-side high-torque transmission can be realized, the torque transmission capability is effectively improved, the application requirement of a high-torque scene is met, and the service life of the bearing is prolonged. The external connection grooves are formed in the outer wall of the outer shaft sleeve at equal angles and can be connected with an external rotating mechanism, 360-degree rotating operation is achieved, the limitation that a rotatable ball spline arc face can only be applied in a small-torque scene is overcome, the application range is expanded, and under the condition that the whole ball spline does not need to be separated from the external rotating mechanism, the service life of the ball spline is prolonged. Therefore, the inner shaft sleeve and parts such as the balls in the inner shaft sleeve can be conveniently maintained or replaced, the maintenance cost and difficulty are reduced, and the maintainability of equipment is improved.

The invention belongs to the field of insulator quality detection robots in overhead transmission lines, and discloses a climbing mechanism for vertical insulator string detection, a robot and a climbing detection method thereof, the climbing mechanism comprises a ball spline, the vertical upward direction is used as the height direction, and the ball spline extends along the height direction; the spline shaft mounting plate is fixedly connected to the lower surface of the ball spline in a sleeving manner; the claw plate is movably connected to the upper surface of the ball spline in a sleeving mode through a spline nut sleeve; the rubber gasket is fixedly mounted on the lower surface of the claw plate; a first driving mechanism is arranged on the spline shaft mounting plate, connected with the claw plate and used for driving the claw plate to move on the ball spline in the height direction. The climbing mechanism can accurately move up and down along the insulator through the first driving mechanism, the climbing mechanism can accurately rotate along the insulator through the second driving mechanism, and the climbing mechanism can climb on the insulator through cooperation of the two driving mechanisms.

The utility model relates to the field of cleaning equipment, and discloses a compact type rotary linear motion mechanism of a brush mechanism of a cleaning machine and the cleaning machine. The linear motion mechanism comprises a screw rod, a first connecting part, a second connecting part, a rotating part and a linear motion part. Wherein the screw comprises a threaded section and a connecting section which are connected with each other, the first connecting part is arranged at one end, away from the threaded section, of the connecting section, the second connecting part is arranged at one end, close to the threaded section, of the connecting section, the rotating part is arranged on the outer side of the connecting section, and the linear motion part is arranged on the side face of the connecting section. According to the technical scheme, the first connecting part, the second connecting part, the rotating part and the linear guide part are matched with one another, so that the rotating motion and the linear motion of the screw do not interfere with each other, the brush cleaning mechanism is driven by the screw to do linear motion, and compared with a traditional ball spline, the cost is lower, and the precision requirement is lower; and screws of different standards can be replaced to adapt to different scenes, so that the practicability is higher.

The utility model provides a gear transmission device, which belongs to the technical field of mechanical transmission and comprises a gear box body, a driving transmission mechanism and a driven transmission mechanism. A driving bearing seat and a driven bearing seat are arranged in the gear box body; the driving transmission mechanism comprises a driving shaft which is horizontally mounted on a driving bearing seat through a driving bearing and a driving gear which sleeves the periphery of the driving shaft; the shaft end of the driving shaft is arranged outside the gear box body and is connected with a prime motor; the driven transmission mechanism comprises a driven gear meshed with the driving gear, a driven hollow shaft arranged in the driven gear in a penetrating mode, a ball spline sleeve arranged in the driven hollow shaft and a spline shaft arranged in the ball spline sleeve in a penetrating mode. By means of the gear box, the problems that in the prior art, a gear box can only transmit torque, does not have the axial telescopic function, needs to be combined with other mechanisms to achieve axial movement, is large in occupied space, increases structural complexity and the like can be solved.

The utility model discloses a slidable impact-resistant starlike sleeve universal joint assembly. The driving shaft assembly mainly solves the problem that a traditional driving shaft assembly is limited in sliding stroke and cannot meet the requirement for large sliding amount. The first channel (42) is arranged on the inner wall of the mounting groove; the second channel is formed in the circumferential outer wall of the intermediate shaft; the retainer (43) is arranged between the mounting groove and the intermediate shaft; and the rolling element (44) is arranged on the retainer and is matched with the first channel and the second channel. According to the slidable impact-resistant starlike sleeve universal joint assembly, the starlike sleeve is of a ball spline structure, torque transmission is guaranteed, meanwhile, the slippage function is achieved, power transmission is even, efficiency is high, and carrying is stable and safe.

A ball spline device includes a spline shaft, the outer side wall provided with raceway grooves extending in the axial direction, each raceway groove comprising, a first groove section and a second groove section, and the width of the second groove section being greater than that of the first groove section; a spline nut coaxially fitted over the spline shaft; and first rolling bodies. When the spline nut is located at a first position, the first rolling bodies are located in the first groove sections and in constraint fit with the first groove sections; and when the spline nut is located at a second position, the first rolling bodies are located in the second groove sections, such that the spline nut and the spline shaft have a preset movement amount in the circumferential direction. Further provided are an automated guided vehicle and a stereoscopic warehouse system.

The utility model provides an alternating control mechanism for a ground knife and a handcart of an electric cabinet. The alternating control mechanism comprises a ball spline shaft, a ground knife spline shaft, a handcart assembly, a ground knife assembly and a handcart head, the motor reducer is connected with the ball spline shaft through a synchronous belt structure and controls the ball spline shaft to stretch; the driven gear inner ring sleeves the outer edge of the ball spline shaft and rotates along with the ball spline shaft; one end of the ball spline shaft is fixedly connected with a handcart head, and the other end of the ball spline shaft is provided with a second connecting seat which is fixed on a linear sliding block of the grounding knife-switch assembly; the handcart assembly stretches out and draws back along the sliding mechanism along with the ground knife spline shaft through the telescopic support. The outer edge of the ground knife spline shaft is sleeved with a driving gear through a positioning flange, and the driving gear and the driven gear are in meshing transmission through a transition gear. Under the condition that the appearance of the cabinet body is not changed and the original manual operation service is not interfered, the operation service of the robot on the switch cabinet is realized, the use of human resources is reduced, and the working efficiency is improved.

The invention provides a single label type paper transfer device based on vision, and the device comprises a vision positioning system which is used for positioning the position of single label type paper; the transfer device comprises a robot, a servo motor and a suction cup, the suction cup is detachably connected with the robot, the servo motor is connected with the suction cup and used for driving the suction cup to rotate, the robot comprises a driving system and a mechanical arm, the suction cup comprises an upper aluminum block, a lower aluminum block and four ball spline linear bearings, and an air cavity is formed in the lower aluminum block; the upper end face of the lower aluminum block is used for being connected with negative pressure, and a first air hole is formed in the lower end face of the lower aluminum block. And the transfer device control system is used for controlling the driving system to drive the mechanical arm to reach a designated position according to the deviation value and controlling the electromagnetic reversing valve to connect or disconnect the vacuum generator and the suction cup. Accurate transfer of single label type paper in the sucking, transferring and stacking processes can be achieved.

The embodiment of the present invention discloses a suction and clamping integrated head module, which is used to solve the technical problem that the existing clamping device cannot open the clamp to complete the material clamping when there is no space for the clamp to avoid. The embodiment of the present invention includes a support plate and a hollow stepper motor; a screw lifting assembly is installed on the support plate, and a mounting slide is connected to the screw lifting assembly, and the mounting slide can be lifted and lowered under the drive of the screw lifting assembly; a connecting seat is provided on the mounting slide, and a connecting shaft extending downward is connected to the connecting seat, and the internal key of the hollow stepper motor is connected to a rotating shaft, and the connecting shaft is rotatably connected to the top of the rotating shaft, and the rotating shaft key is connected to a ball spline, and when the hollow stepper motor is running, the rotating shaft rotates synchronously with the ball spline, and the bottom end of the rotating shaft is connected to a suction head through the ball spline, and the bottom of the ball spline is connected to a pneumatic clamping finger assembly.

A ball spline (10) comprises a splined shaft (20), an outer sleeve (30), and two circulation elements (40). The outer sleeve (30) is slidably mounted on the splined shaft (20) to form a load channel (62) for installing balls (60) therebetween, and has an oil guide channel (35) inside. The circulation elements (40) are attached to two outer end surfaces (31) of the outer sleeve (30) and each have an oil filler opening (45), an oil reservoir (44) communicating with the oil filler opening (45), the load channel (62), and the oil guide channel (35), and an oil guide portion (46) disposed in the oil reservoir (44), corresponding to the oil filler opening (45), and projecting toward the oil guide channel (35).After injecting lubricant into the oil filling hole (45) of one of the circulation elements (40), the lubricant lubricates the balls (60) on both sides by means of the oil guide portion (46) and the oil guide channel (35), thereby enhancing the lubricating effect.

The utility model relates to the technical field of dispensing machines, and provides a four-shaft driving module of a dispensing machine, which comprises a first shaft mechanism, a second shaft mechanism and a ball spline lead screw mechanism, the first shaft mechanism and the second shaft mechanism in the four-shaft driving module are arranged to be of a cross structure, meanwhile, the ball spline lead screw mechanism is arranged at one end of the second shaft mechanism, and compared with an existing gantry type four-shaft module, the four-shaft driving module is more compact in structure and more concise in tail end installation; and compared with an existing SCARA four-axis robot, the dispensing operation space is wider, and the dispensing operation range is larger.

A perforated plastic shoe cover winding and packaging machine, comprising a frame and a large winding plate connected with the frame. A large hole is formed at the center of the large winding plate, an outer edge rotor is rotationally connected at the large hole, a planetary carrier is arranged on the outer edge rotor, planetary traction driven rollers are respectively arranged on the two sides of the large winding plate, a planetary support shaft is arranged at the center of the outer edge rotor, the tail end of the planetary support shaft is rotationally connected to the frame, ball spline lifting / lowering and rotating mechanisms are symmetrically mounted on the two sides of the outer edge rotor, each ball spline lifting / lowering and rotating mechanism comprises a ball spline lead screw, and the end part of the ball spline lead screw passes through the outer edge rotor and is connected to a fork-shaped winding shaft. The perforated plastic shoe cover winding and packaging machine not only has high efficiency and good stability in shoe cover winding, but also has a high degree of automation, so that manual participation is less in the shoe cover processing process, thereby reducing labor intensity, and further improving shoe cover packaging efficiency.

The utility model provides a ball spline structure which comprises a spline shaft provided with a plurality of ball grooves, an outer cylinder arranged on the spline shaft in a sliding and sleeving mode and an end cover located at one end of the outer cylinder, the outer wall of the side, away from the end cover, of the outer cylinder protrudes to form an installation portion, and first ball grooves corresponding to the ball grooves are formed in the inner wall of the outer cylinder. A second ball groove communicated with the first ball groove is formed in the mounting part, a third ball groove communicated with the first ball groove is formed in the end cover, and the first ball groove, the second ball groove and the third ball groove are matched to form a ball channel used for containing balls; an annular oil cavity is formed in the mounting part, and an elastic lubricating assembly is arranged in the oil cavity. The elastic lubricating assembly automatically adjusts the supply amount of lubricating oil according to the motion state and the lubricating requirement of the balls, and it is guaranteed that the optimal lubricating effect can be kept under different working conditions.

This invention provides a polyurethane test piece production apparatus, including a casting device and a post-curing device. The casting device includes a first cavity, a second cavity, a front fixing plate, a rear fixing plate, and a base plate. The front and rear fixing plates are detachably mounted on the base plate, and a plurality of first and second cavities are alternately installed between the front and rear fixing plates via ball-spline shafts. The post-curing device includes a receiving box and a clamping frame. This invention also provides a method for preparing polyurethane test pieces using this polyurethane test piece production apparatus. The polyurethane test piece production apparatus provided by this invention can simultaneously produce test pieces of multiple specifications, improving product reliability and work efficiency. It can also perform multi-layer curing on test pieces of multiple specifications to determine the tensile strength and tear strength of different parts of the polyurethane layer in the thickness direction, thereby guiding the design of NDI-type polyurethane rollers to obtain the optimal design scheme.

This application relates to a ball spline shaft without a ball retainer. A shaft assembly for transmitting torque in a transmission system is provided. The shaft assembly includes an outer shaft member extending along an axis and including an inner surface defining a bore and a plurality of outer recesses at least partially defining the bore. An inner shaft member extends along the axis and includes an outer surface defining a plurality of inner recesses or at least one of the plurality of inner recesses aligned with the outer recesses. At least one rolling element is positioned between the outer recesses and the inner recesses or between the outer recesses and the inner recesses. At least one of the outer surface of the inner shaft member or the inner surface of the outer shaft member is configured to axially retain at least one rolling element, and the shaft assembly does not include a ball retainer.

The utility model discloses a ball spline lead screw testing device, which comprises a base, a spline housing clamping assembly and a spline shaft clamping assembly, and is characterized in that the spline housing clamping assembly and the spline shaft clamping assembly are arranged at the top of the base, and the spline shaft clamping assembly comprises a sliding frame and two clamping plates symmetrically positioned in the sliding frame; a sliding frame is arranged on the base, a fixing block is arranged at the bottom of the sliding frame, a threaded hole is formed in the side wall of the fixing block, a sliding groove is formed in the top of the base, a threaded rod is arranged in the sliding groove, and the threaded rod rotationally penetrates through the threaded hole. The threaded rod is rotated to drive the fixing block and the sliding frame to move back and forth, the spline shaft is driven to move back and forth, when the spline shaft moves backwards every time, the moving length of the spline shaft can be tested by observing the position of the pointer on the side wall of the sliding frame on the scale on the side wall of the base, and the ball spline can be conveniently fixed and tested.

The invention provides an immersed tunnel gravel foundation bed sludge property in-situ monitoring device, which belongs to the field of environment monitoring equipment and comprises a driving unit, a decoupling speed regulation unit and a monitoring acquisition unit. The driving unit comprises a ball spline screw assembly and a driving motor, and the ball spline screw assembly comprises a spline shaft, a ball spline nut and a ball nut. The decoupling speed regulation unit comprises a shell, an input shaft and an output shaft, an input regulation assembly is arranged on the input shaft, an output regulation assembly is arranged on the output shaft, and the top end of the input shaft is connected with the spline shaft. The monitoring and collecting unit comprises a collecting cover and a variable stirring rotor, the collecting cover is arranged at the bottom of the shell, and the variable stirring rotor is arranged in the collecting cover and connected with the output shaft. According to the immersed tunnel gravel foundation bed sludge property in-situ monitoring device, the lifting action and the rotating action can be achieved through one driving motor, the size of the device is reduced, and operation convenience is improved.

The high-rigidity push rod linear motor comprises a guide shaft, a locking nut, a front bearing, a front end cover, a hollow shaft, a rotor, a stator, a rear bearing and a rear end cover, one end of the hollow shaft penetrates through the front bearing and then is connected with the front end cover, the other end of the hollow shaft penetrates through the rear bearing and then is connected with the rear end cover, and the rotor is installed on the outer side of the hollow shaft. The stator is installed on the outer side of the rotor, the linear motor further comprises a ball spline, and the guide shaft sequentially penetrates through the ball spline and the locking nut and then is connected with the hollow shaft. Compared with the prior art, the utility model has the advantages of high rigidity, high precision and the like.

To provide a ball spline with a lubricating oil flow passage.SOLUTION: A ball spline with a lubricating oil flow passage includes a spline shaft, a sleeve body, and two circulation members. The sleeve body is movably attached to cover the spline shaft, and forms a load passage for storing a plurality of balls between the spline shaft and itself. The sleeve body has an oil guidance passage in the inside thereof. The two circulation members are respectively arranged on the outer end surface of the sleeve body. The spline shaft passes through the two circulation members. Each of the two circulation members has an oil injection hole, an oil chamber, and an oil guidance portion. The oil chamber is connected with the oil injection hole, the load passage, and the oil guidance passage of the sleeve body. The oil guidance portion is arranged in the oil chamber so as to correspond with the oil injection hole, and protrudes toward the oil guidance passage. With the above-described structure features, only by injecting lubricating oil from the oil injection hole of one of the circulation members, the balls on both sides can be lubricated with the lubricating oil through the oil guidance portion and the oil guidance passage, and the lubrication effect can be improved.SELECTED DRAWING: Figure 1

An adaptive tool holder of a robotic arm includes: a tool shank; a hollow barrel seat, connected below the tool shank; a ball spline with an upper section, an outer convex ring and a lower section; a spring seat, disposed within the barrel seat and located on the upper section of the ball spline; an elastic element, disposed within the barrel seat, where both ends of the elastic element abut against a bottom of the tool shank and the spring seat respectively; a spring guide pin, disposed through the spring seat; a connecting post, disposed within the lower section of the ball spline, where a top of the connecting post is connected and fixed to the spring guide pin; and a friction stir welding tool inserted and fixed detachably at a bottom end of the connecting post.

The invention relates to the technical field of mechanical transmission, in particular to a self-locking positioning ball spline, a system and a method.The self-locking positioning ball spline comprises a sliding rod, a sliding sleeve, a self-locking positioning actuator, a position sensing module and a control module, and at least one load roller path extending in the axial direction is arranged on the outer circumferential surface of the sliding rod; the sliding sleeve is arranged on the sliding rod, a ball circulation loop corresponding to the load raceway is arranged on the inner circumferential surface of the sliding sleeve, and a plurality of balls are arranged in the ball circulation loop, so that the sliding sleeve can slide in the axial direction of the sliding rod at low friction; the self-locking positioning actuator is arranged on the sliding sleeve, and the self-locking positioning actuator is configured to receive a locking instruction and apply mechanical acting force to the sliding rod, so that static friction force is generated to prevent relative movement between the sliding sleeve and the sliding rod, and self-locking positioning is achieved; the device is more stable and reliable in the occasions of vertical installation, bearing of non-directional external force or intermittent work, and potential safety hazards and precision loss caused by sliding or displacement are avoided.