6results about How to "High speed rotation" patented technology

This utility model discloses a V-blade semi-circular horizontal turbine casing, belonging to the field of hydropower generation. It includes a semi-circular casing, a base tailrace tank, and a V-blade lever runner. The V-blade lever runner includes a runner disc with a lever effect and several V-shaped blades. Compared with the prior art, the shape of the semi-circular casing in this application is adapted to the runner disc for mounting nozzles, which can shorten the distance between the nozzles and the runner disc, reducing water flow loss at the nozzles. The V-shaped blades have "V"-shaped openings, which can both catch the water flow ejected from the nozzles, improving water flow utilization, and reduce airflow friction resistance generated during high-speed rotation using the "V"-shaped tips, thereby reducing energy loss and improving energy utilization. When the V-shaped blades rotate to the bottom of the runner disc, they can also unload water, reducing the load on the runner disc, giving the runner disc a lever effect, and improving the turbine's power generation efficiency.

The utility model relates to the field of medical apparatus and instruments, disclose a eccentric cutter, including base, first eccentric support seat, outer tube, second eccentric support seat, support inner tube, cutter head subassembly and suction passage, first eccentric support seat is installed to base, one end of outer tube is installed to first eccentric support seat, second eccentric support seat is installed to the one end of outer tube away from first eccentric support seat, and second eccentric support seat has gourd shape through -hole, support inner tube penetrates outer tube, one end is installed to first eccentric support seat, and the other end is installed to the support portion of gourd shape through -hole, cutter head subassembly includes cutter head part and transmission shaft, transmission shaft penetrates support inner tube, and rotatably is installed in support inner tube, the utility model separates cutter head subassembly and suction passage completely, on one hand makes cutter head part can high -speed rotation, promotes the operation efficiency, on the other hand can also strengthen the stability of cutter whole, promotes the security of operation.

The utility model discloses a kind of impact drill bits of quick replacement, including drill bit positioning seat, the flange of one end of drill bit positioning seat is connected on impact electric drill, the other end of drill bit positioning seat is rotatably connected with drill bit mounting seat, the part of drill bit mounting seat exposing drill bit positioning seat is inserted with drill bit body, the part of drill bit mounting seat in drill bit positioning seat is fixed with driving shaft, the output end of driving shaft is connected with impact electric drill, limit component is installed on drill bit mounting seat, locking assembly for driving limit component limit drill bit body is installed on drill bit positioning seat, screw sleeve, sleeve is moved in the process of thread rotation along drill bit positioning seat outer wall, drive connecting block to move downwards, so that inclined plane extrudes inclined block, locking block can be embedded in outer concave ring, can hinder connecting column to come out of drill bit mounting seat, reverse rotation sleeve, under the elastic force of reset spring, locking block will automatically separate from outer concave ring.

The utility model discloses a kind of cleaning devices for injection mold inner cavity, including box, clamping assembly is arranged in the box, fixed plate is fixedly installed in the box, the top side of fixed plate is equipped with sliding slot, multiple sliding plates are slidably installed in sliding slot, the top side of multiple sliding plates is fixedly connected with same gear ring, by two electric push rods drive clamping plate to move towards each other, cooperate with the antiskid structure of protective pad, different specifications of mold body can be formed stable clamping, avoid shaking influence effect in cleaning process, cylinder drives mold body to descend vertically, make cleaning cylinder extend into inner cavity, the meshing transmission of transmission gear and gear ring ensures that cleaning cylinder high -speed rotates, outside brush can remove adherent stain by scrubbing, cooperate with the combination of water pump in water pumping component, suction pipe, delivery pipe and spray head, water flows through the through-hole of cleaning cylinder and is directly shot into inner cavity, form the synergistic effect of scrubbing and flushing, compared with traditional single flushing mode, cleaning speed and efficiency can be greatly improved.

The utility model relates to the technical field of tapping devices, in particular to a detachable tapping fragment ejector capable of rotating at a high speed, which comprises a metal shell, six scrap discharge grooves are arranged on the outer surface of the metal shell, an upper round shell is fixedly connected to the middle of the upper end of the metal shell, a first screw hole is arranged on the right portion of the outer surface of the upper round shell, and a second screw hole is arranged on the right portion of the outer surface of the upper round shell. A tapper connecting rod is in threaded connection with the interior of the upper round shell, a second screw hole is formed in the right portion of the outer surface of the tapper connecting rod, a titanium-plated center drill is fixedly connected to the middle of the lower end of the tapper connecting rod, a bearing is fixedly connected to the middle of the upper shell wall of the metal shell, and a spring is connected to the outer side of the bearing in a sleeving mode. According to the detachable trepanning fragment ejector capable of rotating at high speed, high-speed rotation is achieved through linkage of the spring and the bearing, and compared with a traditional trepanning device, the trepanning precision and quality are improved through cooperation of the helical tooth groove, the carborundum coating, the scrap discharging groove and other structures, and meanwhile material scrapping is reduced.

The invention relates to a tool head, a machine tool, a tool spindle and a tool unit. The tool head includes a tool mandrel, a tool, a first spindle, a second spindle, a first balancer, and a second balancer. The tool spindle, the tool, the first spindle, the second spindle, the first balancer and the second balancer are arranged coaxially with the axis of rotation. At least a portion of the first balancer is disposed between the tool and the first spindle in the axial direction. At least a portion of the second balancer is disposed between the tool and the second spindle in the axial direction. At least a portion of the first balancer is disposed radially inward of a radially inner end of the tool.