Abstract: A ball screw nut includes a nut part and a pulley part integrally molded with the nut part on the outer peripheral side of the nut part and having external teeth. The pulley part has a cylindrical portion extending in an axial direction and facing the nut part in a radial direction, and an extended portion extending radially inward from the cylindrical portion and facing the nut part in the axial direction. A restriction part for restricting relative rotation of the nut part and the pulley part is provided between a facing surface of the extended portion facing the nut part and a facing surface of the nut part facing the extended portion.

Abstract: A ball screw assembly having a ball nut including a first end, a second end, a central bore, and a ball track defined by the inner surface, a ball screw shaft including an outer surface defining a ball track, the ball screw shaft being disposed in the central bore so that the ball tracks form a ball raceway, a first stopper disposed within the ball raceway, a plurality of main balls forming a ball train, the ball train being disposed in the ball raceway, and a main spring assembly disposed in the ball raceway between a first end of the ball train and the first stopper, wherein a spring constant of the first spring portion is greater than a spring constant of the second spring portion.

Abstract: Disclosed are systems for converting rotational momentum into linear propulsion. A propulsion system includes one or more thrust units with masses controllably driven by actuators to generate inertia that thrusts a vehicle with the propulsion system in a desired direction. The propulsion system can be configured to have multiple units, each configured to generate thrust in a desired direction and counteract or neutralize thrust in other directions. The propulsion system can generate thrust via two operational cycles and/or through continuous operation. The propulsion system may comprise two mirroring units, each configured to operate in mirrored synchrony to generate a net thrust in a desired direction and counteract or neutralize thrust in other or undesired directions.

Abstract: An explosion-proof robot is an explosion-proof robot which is capable of self-propulsion on a field and includes: an explosion-proof casing of a hollow shape inside of which at least one electric component is placed; and a cover including a nonmetal material and covering at least part of an outer surface of the explosion-proof casing.

Abstract: Provided is a movable robot. The movable robot includes a main body provided with a traveling part; at least one through-hole defined in a top surface of the main body, at least one module guide configured to guide an installation position of a service disposed above the main body, and guide supporter rotatably supporting the module guide inside main body. The module guide may rotate between a first position within the main body and a position protruding upward from the main body through the through-hole.

Abstract: A steering system includes a steered shaft, a ball screw nut, balls, a housing, a rolling bearing, and a snap ring configured to prevent the rolling bearing from detaching from the ball screw nut. The rolling bearing includes double-row rolling element arrays, an outer ring, a first inner ring, and a second inner ring. The ball screw nut has a receiving portion. The snap ring contacts a side face of the second inner ring to push the second inner ring toward the receiving portion via the first inner ring. A resistance force received from the second outer peripheral fitting surface when the second inner ring moves in the axial direction in a state in which detachment of the rolling bearing is not prevented by the snap ring is smaller than a pushing force with which the snap ring pushes the second inner ring.

Abstract: A drive module for rotating a first robot arm member relative to a second robot arm member comprising a motor, a gear head driven by the motor, a pinion driven by the gear head and a slip clutch including an input section with integral gear teeth driven by the pinon, and an output section configured to be coupled to the second robot arm member. A housing is disposed at least about the pinion and slip clutch and configured to be coupled to the first robot arm member.

Abstract: A caster module includes: an omni wheel, provided with an shaft groove; and an effector, received in the shaft groove, a case of the effector being rotatable relative to an inner wall of the shaft groove, and an output end of the effector being connected to the omni wheel and configured to drive the omni wheel to rotate.

Abstract: A coupling assembly includes a flexible coupling and a first adapter. The flexible coupling defines an opening that extends along a central longitudinal axis between a first coupling end and a second coupling end. The first adapter is arranged to be at least partially received within the opening proximate the first coupling end. The first adapter extends between a first adapter first face and a first adapter second face. The first adapter defines a first adapter post and a first adapter hole. The first adapter post that extends from the first adapter first face. The first adapter hole that extends from the first adapter first face towards the first adapter second face.

Abstract: A robot includes a first horizontal frame including a wheel and a motor for driving; a second horizontal frame which is spaced above the first horizontal frame and on which the control box is seated; a third horizontal frame which is spaced above the second horizontal frame and on which a sensor for autonomous driving is disposed; and a plurality of vertical frames which are spaced apart from each other on an upper surface of the second horizontal frame and connect the second horizontal frame and the third horizontal frame, in which the control box is provided so as to be capable of being drawn out inside the second horizontal frame through between two neighboring vertical frames.

Abstract: A motor stop mechanism for a motor including an output shaft includes a motor mounting surface to which the motor is attachable and a threaded drive shaft fixed to and rotatable with the motor output shaft. A trunnion threaded on the threaded drive shaft is displaceable between a retracted position and an extended position by forward and reverse rotation of the threaded drive shaft. A housing surrounds the threaded drive shaft and the trunnion, and a stop limit fixed to the housing defines the extended position of the trunnion. In use, when the trunnion reaches the stop limit, the motor is stopped.

Abstract: The present invention relates to a working robot. According to one embodiment of the present invention, the working robot comprises: a body; a plurality of traveling units connected to the body, having supporting members and traveling members rotatably connected to the supporting members, and provided so as to be travelable with respect to the ground; and a plurality of adjusting units connecting the body and the traveling units, and provided to enable the relative positions of the traveling units to the body to be adjusted, wherein the plurality of traveling units are traveled and the plurality of adjusting units are adjusted so as to maintain the horizontal state of the body.

Abstract: Disclosed is a spherical robot may include a body having a substantially spherical shape; and a ring member having a ring shape, the ring member being coupled to the body so as to be rotated about the body, wherein the ring member includes an inner surface configured to face a surface of the body and an outer surface opposite to the inner surface.

Abstract: The subject matter of this specification can be embodied in, among other things, a rotary lock assembly that includes a first epicyclic gear assembly having a first sun gear assembly, a first ring gear assembly, and a first planet gear assembly mechanically engaged to the first sun gear assembly and the first ring gear assembly, and a second epicyclic gear assembly having a second sun gear assembly configured to be rotated by the first ring gear assembly, a second ring gear assembly, and a second planet gear assembly mechanically engaged to the second sun gear assembly and the second ring gear assembly.

Abstract: A robot driving device includes a base provided at a point spaced apart from a joint part of a robot, a driving part installed to be movable on the base, and for providing a driving force to the joint part, a wire connecting the driving part and the joint part to transfer the driving force of the driving part to the joint part, an adjustment part having an elastic part for elastically supporting the driving part with respect to the base, and allowing the driving part to move on the base in order to give tension to the wire, and a fixing part for fixing relative locations of the driving part to the base at a point at which the driving part has moved.

Abstract: A robot includes a base, a robot arm having a first arm coupled to the base and rotating about a first axis, and a force detection unit provided in the base and detecting a force acting on the base or the robot arm, wherein the first arm is coupled to the base in a position shifted from a first center line passing through a center of the base and being parallel to the first axis, and a second center line passing through a center of the force detection unit and being parallel to the first axis is closer to the first axis than the first center line.

Abstract: A multifunctional steering column for a transportation vehicle having a steering bracket for connection of the steering column to a transportation vehicle body of the transportation vehicle; a steering tube held on the steering bracket and which has a steering tube axis; a steering wheel connection for mechanical coupling of the steering column to a steering wheel; and a steering gear end at which a steering gear clutch with a steering gear connection for mechanical coupling to a steering gear of the transportation vehicle is arranged. Also disclosed is a transportation vehicle and a method for operating a transportation vehicle.

Abstract: A driving-unit that rotates a first-member and a second-member constituting a robot-arm about a rotary-axis. The driving-unit includes: a bracket fixed to the first-member and including a first-hollow-hole penetrating along the rotary-axis; a motor fixed to the bracket and accommodated in the first-member; a reducer that connects the bracket and the second-member rotatable about the rotary-axis and that includes a second-hollow-hole penetrating along the rotary-axis; and a driving power transmission mechanism accommodated in the bracket and transmitting a rotation of the motor to the reducer. The driving power transmission mechanism includes a driving-shaft, a first-transmission-mechanism that transmits the rotation of the motor to the driving-shaft, and a second-transmission-mechanism that transmits a rotation of the driving-shaft to an input-shaft of the reducer. A distance between a shaft of the motor and the rotary-axis is shorter than a distance between the driving-shaft and the rotary-axis.

Abstract: A robot includes a mobile robot provided with driving wheels, a frame provided in the mobile robot, a housing having an opening formed therein, a drawer guide having a fixed bracket installed in the housing and a moving bracket moving along the fixed bracket and drawable out through the opening, and a drawer mounted on the moving bracket to be inserted into the housing or drawn out of the housing.

Abstract: This disclosure relates generally to a mobile robotic manipulator with telepresence system which includes a chassis assembly, a tilting arm assembly, and a rotary gripper assembly. The chassis assembly includes a chassis plate which mounts plurality of drive motors coupled with plurality of omni wheels through plurality of L mounting brackets; plurality of anti-toppling arms includes a plurality of linear guides which is mounted on a C mount plate; and plurality of linear actuators is mounted to expand or retract the plurality of anti-toppling arms. The tilting arm assembly includes a bottom fixed end of a front long actuator is mounted to a large rotating plate through plurality of C clamps. The rotary gripper assembly includes a top plate of a gripper is mounted and separated by gap with a bottom plate of the gripper to place a gripper actuator on top surface of the bottom plate of the gripper.