14results about How to "High speed rotation" patented technology

The present invention provides an electric motor capable of high-speed rotation. The electric motor (10) comprises: a shaft (2); at least two bearings, namely a bearing (4a) and a bearing (4b), which are used to support the shaft (2); a magnet (3) which is supported by the shaft (2) between the two bearings (4a) and the bearing (4b); a stator (5) which surrounds the magnet (3); and a magnetic component (6a) and a magnetic component (6b) which are arranged between the magnet (3) and the bearings (4a) and the bearings (4b) in the length direction of the shaft (2), and the magnetic component (6a) and the magnetic component (6b) have an outer diameter larger than the outer diameter of the magnet (3).

The utility model discloses a subway energy-saving fan which comprises a fan body, protective net pieces are arranged on the left side and the right side of the fan body, a rotating shaft is connected between the protective net pieces on the left side and the right side in a rotating fit mode, and two sets of fans which are correspondingly arranged on the left side and the right side are fixedly arranged on the rotating shaft in the circumferential direction. A first transmission wheel and a second transmission wheel are further fixedly arranged on the rotating shaft, a driving mechanism is mounted at the bottom of the fan body and comprises a shell, a mounting plate is fixedly arranged in the shell, a moving table is arranged on the left side of the mounting plate, and a driving motor is fixedly arranged in the moving table; an electric control telescopic controller used for controlling the moving table to move left and right is fixedly arranged in the mounting plate. The device can control the rotation speed adjustment of the fan, so that the service life is prolonged while energy is saved; spray can be diffused and sprayed out at a high speed, and the safety in the tunnel is further improved.

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 technical field of cam shaft machining, in particular to an oil pump cam shaft machining tool which comprises a bottom plate, a first limiting seat fixedly installed on one side of the upper surface of the bottom plate, a second limiting seat movably installed on the other side of the upper surface of the bottom plate, a first adjusting seat and a second adjusting seat. The first adjusting seat is slidably mounted on the inner side of the first limiting seat; a first bayonet socket is fixedly mounted on one side, close to the second limiting seat, of the first adjusting seat; the second adjusting seat is slidably mounted on the inner side of the second limiting seat; wherein a reserved groove is formed in the second adjusting seat; a second bayonet socket is rotationally mounted in the reserved groove; a cam shaft body is connected to the opposite sides of the first bayonet socket and the second bayonet socket in an inserted mode. The cam shaft machining tool solves the problem that a machining tool used at the present stage is low in efficiency when clamping and positioning a cam shaft.

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 embodiment of the invention provides a rotary cutting type pipe cutting machine, and relates to the technical field of pipe cutting machines. The rotary cutting type pipe cutting machine comprises a machine body, a pipe rotating mechanism and a pipe cutting mechanism. The pipe rotating mechanism and the pipe cutting mechanism are both connected with the machine body. The pipe cutting mechanism comprises a fixing plate, a first driving assembly and a clamping assembly. The clamping assembly is rotationally connected with the fixing plate, the first driving assembly is installed on the machine body, the first driving assembly is connected with the clamping assembly and used for driving the clamping assembly to rotate, the clamping assembly is used for clamping a pipe body, and the pipe cutting mechanism is used for cutting the pipe body. According to the pipe cutting device, the structure that the pipe rotating mechanism and the pipe cutting mechanism are combined is arranged, the pipe rotating mechanism adopts the clamping assembly to stably clamp the pipe body, rotation of the pipe body is achieved through the first driving assembly, and the problem that an existing fixed pipe body cutting mode is low in efficiency is solved.

The utility model relates to the field of heat treatment equipment. A high-rotating-speed long-shaft impeller structure for medium stirring comprises a holder, a coupler, a shaft and an impeller, the holder comprises an installation disc and a shaft barrel, the installation disc comprises a cage-shaped structure formed by connecting an upper disc face with a lower disc face, the upper disc face comprises through holes used for installation, the upper disc face is fixedly connected with the lower disc face through arc-shaped rib plates, the lower disc face is connected with the shaft barrel, and the shaft barrel is fixedly connected with the shaft barrel. The upper end of the shaft is connected with the coupler; the lower end of the shaft is connected with impellers. The retainer is mainly used for fixing and mounting the shaft barrel, further fixing the shaft and the impeller, and providing the mounting requirements of the retainer; the shaft is mainly used for transmitting power and driving the impeller to stir so as to realize the temperature uniformity of the quenching medium.

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.

The utility model discloses a portable coffee grinder which comprises a grinding outer shell, a protective shell arranged on the outer side of the grinding outer shell, a grinding cover installed at the upper end of the protective shell, a protective cover installed on the outer side of the bottom of the grinding outer shell, a grinding base installed at the bottom of the protective cover, and a bearing grinding disc installed in the grinding outer shell. A fixing outer sleeve is arranged below the bearing grinding disc, a fixing base is installed at the bottom of the fixing outer sleeve, an outer sleeve shell is installed on the outer side of the fixing outer sleeve, grinding blades are installed in the bearing grinding disc, a switch button is arranged on the outer wall of the grinding outer sleeve, and a rotating wheel is connected to the bottom of the bearing grinding disc. The portable coffee grinder has the advantages that the portable coffee grinder is ingenious in design, compact in structure and convenient to carry and use. And through the design of the grinding shell, the protective shell and the protective cover, the stability and durability of the grinding machine are guaranteed, and meanwhile the use safety is improved.

A rotary table (10) includes a housing (16) including a cylindrical holding part (46) extending along a first axis (Ob) direction, a pallet stand (44) including a flange part (52), which is formed along an outer periphery thereof, and which rotates about the first axis (Ob) with respect to the holding part (46) together with a pallet (36), a roller bearing (42) which is arranged in the housing (16) and which rotatably supports the pallet stand (44), a motor (40) which drives the rotation of the pallet stand (44), and a support member (56) which is arranged on the rear side of the flange part (52) in the first axis (Ob) direction, which has a sliding surface (56A) at a front end thereof in the first axis (Ob) direction, and which is configured to be movable forward and rearward along the first axis (Ob) direction, wherein the sliding surface (56A) contacts the flange part (52) when advanced and separates from the flange part (52) when retracted.

This utility model relates to the technical field of polyvinyl chloride (PVC) production and processing equipment, specifically a material crushing system for the drying process of PVC production. The system includes a centrifuge, an airflow drying tower, and an air filter. Bearing brackets are installed on both sides of the airflow drying tower, and bearings are detachably connected to the inner walls of both brackets. A main shaft is inserted into one side of one of the bearings. Multiple crushing blades are evenly arranged on the outer surface of the middle section of the main shaft. A coupling is detachably connected to one end of the main shaft, and a drive motor is engaged at the other end of the coupling. This material crushing system for the PVC production drying process, through the coordinated arrangement of the main shaft, crushing blades, coupling, and drive motor, allows the drive motor to drive the main shaft and crushing blades to rotate when resin deposits at the bottom of the airflow drying tower, crushing the resin at the bottom of the tower into particles. This solves the problems of adhesion and material accumulation clogging in the drying system during the production of homopolymer PVC resin.