48results about How to "Friction adjustment" patented technology

The invention discloses an anti-capsizing support of a bridge. The anti-capsizing support of the bridge comprises a first plate, a second plate and a third plate, wherein the first plate, the second plate and the third plate are arranged in parallel from top to bottom. Clamping grooves are formed in the two sides of a second insertion plate vertically. Each clamping groove communicates with a channel through a square hole between the clamping groove and the channel. A movable brake pad is placed in each clamping groove. A tie piece is arranged in the channel. Wedges are arranged on the two sides of the tie piece at intervals and face the same direction, and each wedge makes contact with the movable brake pad in the corresponding position. A threaded hole is formed in the end of the tie piece, and a tension bolt is installed in the threaded hole for tensioning connection. The anti-capsizing support of a bridge is of a pure mechanical structure, and long-term maintenance-free operation can be achieved; and in addition, main friction force happens to friction plates between the insertion plates, the automobile brake pads are used as the friction plates and are free of maintenance in the whole life, and the friction force of the brake pads can be adjusted conveniently through the tension bolt.

The invention relates to an indicator instrument, which includes indicator module, indicator supporting part supporting the indicator module, the end of which connects to the indicator, bracket and base capable of rotary. The bracket includes upper hinge part connecting to the indicator bracket; a first connector, one end of which connects to the upper hinge part; a bracket of a second connector rotating with the first connector together, one end of which connects to the hinge part; upper hinge part connected by one end of the first connector and one end of the second connector; elastic material, two ends of which connect to the first connector and the second connector. The indicator instrument of the invention can preserve the watching angle of the indicator module even the bracket rotates. Besides, users can rotate the bracket backward easily. The invention can prevent indicator module rotating due to its own weight when the bracket rotates forward, so it is convenient for users.

The invention relates to a nanofiber yarn twisting and winding device and a use method thereof. Two hollow outer rollers of a cage twisting mechanism are horizontally symmetrically arranged, and a twisting gap is formed between the rollers. The hollow outer roller is provided with air holes distributed in a matrix manner. A separation net is covered on the surface of the hollow outer roller. The hollow outer roller rotates driven by a transmission mechanism. Airflow gathering inner sleeves are respectively fixed in the hollow outer rollers. The airflow gathering inner sleeve is internally provided with an air cavity and is provided with a gas gathering port along a side surface, and the gas gathering ports are arranged in an opposite manner. The airflow gathering inner sleeves are respectively connected with air extractors. A delivery roller is corresponding to the twisting gap and is arranged on the end of the hollow outer roller. The method comprises: starting the transmission mechanism to drive the two hollow outer rollers to rotate along the same direction; starting the air extractors to respectively extract air in the two airflow gathering inner sleeves; feeding a nanofiber cluster into the twisting gap to twist, to obtain a nanofiber yarn; and the nanofiber yarn pulling and winding. The device and the method realize to regulate nanofiber yarn twisting parameters, and improve stability of a twisting process.

The invention relates to a yarn draw-off unit of a rotor spinning machine, having a draw-off nozzle (21) which projects into a spinning chamber (22) of the rotor spinning machine, and a draw-off conduit (23) for a yarn (5) produced within the spinning chamber (22), the draw-off conduit (23) being arranged downstream of the draw-off nozzle (21) in the draw-off direction of the yarn (5) that is drawn off from the spinning chamber (22). The draw-off conduit (23) comprises a helical section (24), with the aid of which a false twist can be imparted to the yarn (5) within the draw-off conduit (23). Furthermore, a draw-off nozzle for a rotor spinning machine is described, the draw-off conduit (23) of which comprises a helical section (24), with the aid of which a false twist can be imparted to the yarn (5) within the draw-off nozzle (21). Finally, the invention relates to a method for producing a yarn (5) with the aid of a rotor spinning machine. The method is characterised in that the yarn (5) is exposed to torque within a helical section (24) of the draw-off conduit (23), said torque causing the yarn (5) to rotate about its longitudinal axis, the direction of rotation of the rotation corresponding to the direction of rotation that is imparted to the yarn (5) by the spinning rotor (3).

The invention relates to cableway self-propelled transportation equipment which comprises a transportation device running along a cableway rope. The transportation device comprises a sliding adjustingmechanism, a transmission mechanism and a pull arm, and the sliding adjusting mechanism and the transmission mechanism are movably connected with the pull arm. A sliding adjusting mechanism is arranged on a pull arm; a cableway rope clamping area is defined by a first transmission assembly, a second transmission assembly and a third transmission assembly of the sliding adjusting mechanism. When the cableway rope is positioned in the cableway rope clamping area; the cableway rope is clamped with the first transmission assembly, the second transmission assembly and the third transmission assembly; in addition, the sliding adjusting mechanism is provided with a first lifting assembly, the cableway rope clamping area can adapt to cableway ropes of different sizes and smoothly pass through thecableway rope connecting position or the cableway support turning position, and the applicability of the transportation device is improved.

The invention discloses a convex-concave die device capable of preventing material clamping, and relates to the technical field of machining. The convex-concave die device comprises a concave die anda convex die, wherein a blanking hole is formed in the upper surface of the concave die, the convex die is in sliding fit with the blanking hole, sliding grooves are formed in the side faces of the periphery of the concave die, the sliding grooves communicate with the blanking hole, and sliding blocks are connected in the sliding grooves in a sliding mode. According to the convex-concave die device, a brush roller, the sliding blocks, a push block, a second spring and a screw rod are used, so that material clamping is avoided; and the screw rod can be driven to rotate by rotating a knob, the screw rod can drive the push block to move forwards or backwards, the closer the push block is to the blanking hole, the larger the pressure borne by the brush roller is, the larger the friction forceis, otherwise, the smaller the friction force is, so that the adjusting effect is achieved. According to the convex-concave die device, a fixed frame, a movable frame, a sliding rod and a first springare used, when the convex die is used for blanking a workpiece, a sliding frame can be extruded to slide upwards, when the convex die is reset, the sliding frame can be reset along with the convex die, in the process, the sliding frame can further remove waste on the surface of the convex die, and material clamping is further prevented.

The invention discloses a money twisting mechanism of a money counting machine, and the mechanism comprises a shell. The front end of the shell of the cash counter is rotatably connected with a moneypassing shaft, a plurality of money passing wheels are interference-fitted on the money passing shaft, a money twisting shaft is rotatably connected between the inner walls of the money counter at a position on one side of the money passing shaft, the money twisting shaft is interference-fitted with a plurality of money twisting wheels, and a connecting mechanism is installed in the middle of themoney twisting shaft. By dragging the twisting shaft close to the drive shaft, the outer retainer ring is driven to slide on the guide rod and press the second spring, so that the distance between thetwo twisting shafts is reduced, so that the banknote twisting shaft adjacent to the drive shaft can be disengaged from the drive shaft, When the twisting ring on the twisting wheel is ground, the twisting shaft can be conveniently removed, so that the replacement of the twisting ring on the twisting wheel becomes convenient, the frictional force of the twisting ring can be maintained, the twisting wheel is not easy to slip with the banknotes, the counting stability is maintained, and the convenience of maintenance of the banknote counter is improved.

The invention discloses a solar photovoltaic module array structure. The solar photovoltaic module array structure comprises a solar photovoltaic module and a support, wherein the support comprises afront leg and a rear leg, a frame of the solar photovoltaic module is provided with a side rod, the front leg is pivoted with the side rod, the rear leg is connected with the side rod via a transmission combination body, the transmission combination body comprises a rotation cylinder and a rotation shaft which are in linkage, the rotation cylinder is driven, the rotation shaft rotates by an accurate angle, the side rod and the solar photovoltaic module where the side rod is located are driven to rotate by an accurate angle by the rotation shaft, so that the solar photovoltaic module efficiently receives solar energy.

The invention discloses a basalt fiber disc type tension adjusting device, and relates to the technical field of basalt fiber processing, the basalt fiber disc type tension adjusting device comprisesa table top, a fixed disc, a movable disc, an adjuster and a driving mechanism for driving the adjuster to move along a straight line, the center of the fixed disc is connected to a fixed rod by a locking screw, the fixed rod is fixed to the table top through a fixed base and a bolt, the fixed disc and the movable disc are opposite in position, the movable disc is fixed to the end of a movable rodthrough a locking screw, the movable rod extends into a circular mounting cavity in the adjuster, and the wheel face of a rolling wheel makes contact with an irregular rotating block. And the distance between any point on the irregular rotating block and the rotating center of the irregular rotating block is gradually increased and then gradually decreased. The basalt fiber disc type tension adjusting device has the beneficial effects that the friction force between the fixed disc and the movable disc can be adjusted, and meanwhile, the adjuster can move, so that the basalt fibers are more convenient to disassemble and re-put on the production line.