37results about How to "Limited rotational movement" patented technology

The device comprises: a piece fixed to the container, having a lateral fluid output opening and a passage allowing the entry of air; a movable piece comprising a tube having a lateral fluid output opening, the tube being movable rotationally in the fixed piece and in axial translation between a maximum pushing-in position and an extraction position where the lateral openings can be brought into coincidence by rotation of the movable piece. The movable piece comprises an internal skirt making it possible to channel the fluid towards the output opening in order to prevent leakages through the air entry passage. The fixed piece comprises means for guiding the displacement of the movable piece with respect to the fixed piece from the maximum pushing-in position to the extraction position with coincidence of the openings.

The invention discloses an intelligent aerial working robot, and the robot comprises two moving devices which are arranged in a left-right direction in an array manner. Each moving device comprises afixed housing, and the lower end of the right end face of the left fixed housing is fixedly provided with a connecting plate. The front and rear ends of the right end face of the connecting plate aresymmetrically provided with left support plates, and a cross-shaped turning shaft is disposed between the left support plates. The upper and lower ends of the cross-shaped turning shaft are symmetrically provided with right support plates, and the right ends of the right support plates are fixedly connected to the lower end of the left end face of the right fixed housing. The rear sides of the left end faces of the fixed housings are each provided with a rotating camera, and the rear end face of the left fixed housing is provided with a deicing device. During operation, an extruding roller jacks a cable, thereby guaranteeing the normal operation of the device. A motor drives a rotating disc to rotate through a transmission spindle, thereby removing the ice on the cable under the action offriction. The rotating cameras can facilitate the observation of the position relation between the moving devices and the cable.

The invention provides a reciprocating type washing machine. The reciprocating type washing machine comprises a washing bucket, an upper cover, a transmission mechanism, a piston and a driving device, wherein the upper cover is movably connected to an opening of the washing bucket, the washing bucket comprises an upper portion and a lower portion, the upper portion of the washing bucket is used as a washing cavity for containing / washing clothes, the piston is arranged in the washing cavity, the lower portion of the washing bucket is used as a control cavity, the transmission mechanism is arranged in the control cavity, the input end of the transmission mechanism is connected with the driving device, the transmission mechanism and the piston are in screw transmission, and the driving device drives the piston to perform up-down reciprocating motion in the washing bucket through the transmission mechanism. According to the reciprocating type washing machine, washing is performed through reciprocating extrusion on the clothes by the piston, the defects that an existing impeller type washing machine and a tumbling-box washing machine are serious in wear of the clothes and large in water consumption are overcome, and the better washing effect is achieved.

The invention discloses an earthing switch interlocking device of a GIS combined electrical apparatus. The earthing switch interlocking device comprises a disconnecting switch and an earthing switch, wherein the earthing switch is arranged at the lower part of the disconnecting switch; the disconnecting switch comprises a disconnecting switch shell, a disconnecting switch transmission shaft, a disconnecting switch moving contact and a disconnecting switch fixed contact; the earthing switch comprises an earthing switch shell, an earthing switch moving contact and an earthing switch fixed contact; and a bump at the upper end of an interlocking stop shaft of the earthing switch fixed contact can be clamped into one of a plurality of grooves at the lower end of the disconnecting switch transmission shaft. According to the earthing switch interlocking device, motion of the moving contact is operated to push the bump at the upper end of the interlocking stop shaft to be clamped into the groove at the lower end of the disconnecting switch transmission shaft through closing of the earthing switch moving contact and motion of the disconnecting switch transmission shaft is blocked; and rotary motion of the disconnecting switch transmission shaft is limited under the close state of the earthing switch, so that closing of the disconnecting switch is limited.

A cable protection and guide device in which wear damage in mounting portions of a mounting bracket is avoided and the mounting bracket is reliably and strongly mounted so that the cable is smoothly protected and guided. The mounting operation of the bracket is easy. A cable protection and guide device includes a mounting bracket having a mounting hole which surrounds and accommodates a tap bolt. A threaded portion 162 of the tap bolt includes a metallic bush 170 and the length H 1 of the metallic bush 170 in a bolt inserting direction is shorter than the length H 2 of the mounting hole 143 in a bolt inserting direction.

The invention relates to an apparatus, a rock drilling rig and a method for rock drilling. The device comprises a turning device (TD) for moving a drilling tool (8) around its longitudinal axis. The rotational movement (T) is controlled by means of an alternating rotational system (ATS) such that the direction of the rotational movement is continuously reversed to the first rotational direction and the second rotational direction. The angle of rotation of the drilling tool is limited and a safety system (SS) is configured to monitor the operation and ensure that a predetermined angle of rotation is not exceeded.

The invention discloses a machining technology for a gear hole of which the diameter is larger than 16mm. The machining technology comprises the following steps: selecting machining equipment and cutting tools; clamping a workpiece and locating the workpiece by using an angular locating device; compiling the machining technology and machining program; separately putting a strong drill bit used fordrilling and a strong drill bit used for reaming in the corresponding blade guards of the program and carrying out adjustment; using the strong drill bit used for drilling to machine a bottom hole ofthe gear hole, reserving a 0.1-1mm reaming allowance in the radius direction, and keeping the supply of water-soluble cooling liquid in the whole machining process; using the strong drill bit used for reaming to carry out reaming; and during reaming, setting the linear speed of the strong drill bit at 30-40m / min and setting the feeding speed at 0.07-0.12mm / r. The smaller the reaming allowance, the higher the linear speed and the feeding speed, and the supply of the water-soluble cooling liquid is kept in the whole machining process. By using the specific strong drill bits, the machining process of the gear hole can be finished through the drilling and reaming two procedures, the machining efficiency is high, and the repeated use rate is higher.

The invention discloses a bobbin and an assembling method thereof. The bobbin comprises a roller body and stop plates which are arranged at the two ends of the roller body; the roller body is integrally manufactured and formed and comprises a coiled pipe and stop edges which are formed at the two ends of the coiled pipe; an annular groove is formed in the inner side of each stop edge at the corresponding end part of the coiled pipe; a first notch groove is formed in each stop edge; a stop block is arranged at the position, on each annular groove, on the inner side of the corresponding stop edge; a through hole is formed in the intermediate position of each stop plate; a second notch groove is formed in the edge of each through hole; each through hole is formed in the corresponding annular groove in a sleeving manner; each stop block is arranged in the corresponding second notch groove to prevent the corresponding stop plate from rotating. When the bobbin is assembled, the stop edge at one end of the roller body is clamped into the through hole of the corresponding stop plate, one side of each stop edge is clamped into the corresponding second notch groove, each first notch groove in the other side of the corresponding stop edge is clamped at the edge of the corresponding through hole, and the roller body is rotated clockwise until the stop blocks are clamped into the second notch grooves and the through holes are completely formed in the annular grooves in the sleeving manner. The bobbin is detachable and is convenient to transport, so that the transport cost is reduced; the bobbin is assembled easily and quickly, so that the production efficiency can be improved; the quality is more stable because of the integrated roller body of the bobbin.

The present invention provides an anti-rotation device, a motion table system and a lithography equipment. The anti-rotation device is connected between the workpiece table and the cable table, and is used to limit the workpiece table relative to the cable table around the plane where the vertical workpiece table is located. When the axis of the shaft rotates at an unexpected angle, the anti-rotation device includes a cross telescopic link assembly, and the two ends of the cross telescopic link assembly are respectively connected to the workpiece table and the cable table in rotation; when the workpiece table moves along the first direction, the cross telescopic linkage The rod assembly can be compressed or extended in the same direction, and the connection position of the cross telescopic link assembly, the workpiece table and the cable table remains unchanged in the second direction, and the first direction is the shortest connection direction between the workpiece table and the cable table , the second direction is perpendicular to the first direction in the same plane. When the cross-telescopic connecting rod assembly of the present invention is stretched, its connection position with the workpiece table and the cable table remains unchanged, so as to avoid resistance to the movement of the motion table due to the movement of the connection point along the non-telescopic direction.

The invention relates to the technical field of measuring equipment, in particular to a real-time measurement system for the end pose of a hexapod positioning platform. It includes: a moving platform, a fixed platform, and more than six retractable grating ruler measuring rods. The device can be used for the six-dimensional closed-loop control of the large-scale six-degree-of-freedom positioning platform in the process of wide-range adjustment. When the moving platform moves to a certain posture, the length change value of the rod is measured by six grating rulers to calculate the real-time position of the moving platform. Position and attitude; the device uses a gapless spline track and a spline bearing to realize the axial telescopic movement of the grating ruler measuring rod and limit the rotation movement of the grating ruler measuring rod to ensure high measurement accuracy. The measuring rod of the grating ruler is a follower rod, which can be extended or shortened with the change of the position and posture of the moving platform. The change in the measurement accuracy caused by this further ensures the high-precision measurement of the pose of the moving platform.

The invention relates to a vortex oscillator. A motor is fixed on a motor base, and a rotating shaft of the motor is in transmission connection with an eccentric shaft; a plastically deformable control support is mounted on the eccentric shaft through a bearing, and the plastically deformable control support and the eccentric shaft can rotate relative to each other; an upper support plate and a lower support plate are arranged above and below the plastically deformable control support respectively, an upper counterweight is arranged at the top end of the eccentric shaft, and a lower counterweight is arranged on the lower support plate; a sample block is arranged on a sample block support plate, and the sample block support plate is arranged on the upper support plate through an isolation column; the bottom of a pillar and the motor base are relatively fixed, and the top of the pillar is connected with the plastically deformable control support. The vortex oscillator provided by the invention can effectively limit the autorotation motion of the sample block and ensure the stable revolution motion of the sample block, and enables a reagent placed in a test tube in the sample block to produce a stable vortex so as to achieve an excellent uniform mixing effect.