107 results about "Side Tooth" patented technology

A striker driving mechanism for an electric nail gun includes a striker, a driving motor, a gearbox, a driving cam and a relay device. The striker has driving teeth on one side facing the driving cam to engage with pins thereon. A nail driving groove with a locking hole is centrally located on the top surface of the front of the striker. A triangular projection is provided on the striker bottom and in front of the locking hole. The relay device includes a mounting base hinged with one end of a striker support block whose other free end has an arc-shaped latch projection facing upward and connecting a reset spring being pre-compressed to maintain the arc-shaped latch projection always held against the bottom of the striker. The striker having single side tooth structure and a passive catch device simplifies the structure and improves the operational stability.

The invention relates to the technical field of perioral muscle function detection, and discloses a flexible sensing function integrated tongue muscle function detection system and method.The system comprises a tooth socket type flexible film sensor, a wireless transmission module and a control module; the tooth socket type flexible film sensor is of a wearable tooth socket structure, a sensing array formed by a plurality of sensing units is arranged in the tooth socket type flexible film sensor, and the sensing array is distributed in an upper jaw area and a side tooth area corresponding to tongue muscle movement; the wireless transmission module is arranged on the outer side area of the upper molar and is connected with the tooth socket type flexible film sensor through the flexible printing circuit; the control module is connected with the wireless transmission module and comprises a calibration module, an initial value determination module, a correction module and a data storage and communication module. According to the invention, accurate, non-invasive and real-time monitoring of tongue muscle activity is realized.

The utility model relates to a novel stainless steel pipe connecting structure, and aims to solve the problems of complicated installation, insufficient sealing performance, high cost and the like in the conventional connecting mode. The structure comprises an open annular shell, and two ends of the open annular shell are folded inwards to form a groove-shaped structure; one end of each extension plate is perpendicular to the side wall of the shell, and the other end of each extension plate is bent and attached to form an enclosed cavity and is provided with a mounting groove; the arc-shaped gasket is located in the cavity, two ends abut against the extension plates, and mounting holes are formed; the C-shaped lining plate is attached to the inner wall of the groove-shaped structure of the shell and is internally provided with a One side of the annular clamping strip is in contact with the inner wall, and the other side of the annular clamping strip is of a tooth-shaped structure to form a guide inclined surface; and the screw rod penetrates through the mounting hole and is connected with the nut to realize stainless steel pipe connection. The structure simplifies installation, improves sealing performance, reduces cost and is suitable for various stainless steel pipe connection scenes.

The utility model relates to a steering gear box support mechanism, which belongs to the technical field of steering gear box supports and comprises a frame left longitudinal beam body, a first U-shaped frame and a mounting plate, an adjusting mechanism is arranged on the bottom wall of an inner cavity of the first U-shaped frame, heat dissipation mechanisms are arranged on the left side and the right side of the bottom wall of the inner cavity of the first U-shaped frame, and a supporting frame is arranged on the lower surface of the first U-shaped frame. The supporting frame is fixed to the right side of the vehicle frame left longitudinal beam body through bolts, and the mounting plate is slidably connected to the outer side of the second U-shaped frame. According to the steering gear box support mechanism, a steering gear box can be effectively fixed to the mounting plate, limiting and fixing are conducted by finely adjusting the mounting position and using fixing bolts, the accuracy and stability of the mounting position of the steering gear box are ensured, and the steering problem caused by improper mounting is reduced; the stability of the whole mounting structure is improved, and the reliability and safety of the steering gear box in the working process are ensured.

The invention relates to the technical field of automobile connecting wire harnesses, and discloses an aluminum wire harness structure for a new energy charging seat and a processing method thereof.The aluminum wire harness structure comprises an aluminum wire core and a copper terminal, the aluminum wire core comprises a core main body part and a core connecting part, and the copper terminal comprises an end main body part and an end connecting part; the core connecting part and the end connecting part are respectively formed by stamping of a wire core press molding machine and a terminal press molding machine, the surface of the core main body part is sleeved with an insulating sleeve, and two corresponding side surfaces of the core connecting part are integrally connected with side tooth blocks; according to the aluminum wire harness structure, tight interference fit between the aluminum wire core and the copper terminal is achieved through clamping fit between the side tooth blocks and the side tooth grooves in combination with a temperature difference assembly process and by means of the thermal expansion and cold contraction characteristic of metal, secondary fixing of the insertion blocks and the insertion barrels is assisted, a dual mechanical locking structure is formed, and the problems of loosening and falling of the connecting parts are effectively avoided.

The invention discloses a composite worm grinding wheel and a dressing method thereof.The composite worm grinding wheel is composed of a surface micro-structured grinding wheel body and a fine grinding wheel body which are axially connected into a whole, the surface micro-structured grinding wheel body adopts ultrasonic vibration to assist a single-point diamond pen in dressing, and a large number of separated-continuous oblique curve micro grooves are dressed in the tooth side face; cutting force, heat production and the temperature of a contact area are reduced by reducing the contact layer, the effective blade grinding number of the grinding wheel during grinding is increased, and the problems of blockage of the grinding wheel and thermal damage to the surface of a workpiece are effectively solved; a fine grinding working face is formed on the outer side tooth face of the fine grinding wheel, and the problem that the surface roughness is large is solved by using grinding materials with the large particle size number. The device integrates the functions of rough grinding and accurate grinding, machining is completed through one-time clamping, repeated clamping and positioning errors are reduced, materials are efficiently removed, chip removal and heat dissipation are improved, the machining precision and size consistency are improved, and the contradiction that efficiency, heat dissipation and surface quality are difficult to consider in the generating grinding process is solved.

The utility model belongs to the technical field of liquid crystal module processing, and particularly discloses dispensing equipment with an anti-displacement structure, which comprises a dispensing table, the top of the dispensing table is fixedly connected with a limiting box, and the bottom of the dispensing table is fixedly connected with a servo motor. The output end of the servo motor penetrates through the inner surface of the dispensing table and extends into an inner cavity of the limiting box. According to the dispensing equipment with the displacement prevention structure, a servo motor is arranged, so that a gear can be driven to rotate, the gear drives toothed plates on the two sides to move towards the inner side under the action of tooth meshing in the rotating process, a vertical plate can be driven to move towards the inner side through transmission of a connecting rod, and a liquid crystal module is limited left and right; the displacement in the use process is avoided; the screw rod moves downwards under the action of threads in the rotating process and drives the limiting plate to move downwards, the liquid crystal module can be limited up and down through cooperation between the limiting plate and the supporting plate, and the displacement prevention effect on the liquid crystal module is improved.

The invention relates to a structural design method of an eccentric cradle body of a cradle rotary table for a five-axis machine tool, which is characterized in that the eccentric direction is opposite to the rotating direction through the eccentric design of the cradle body structure, so that the tooth surface on one side of a worm gear is tightly attached to the tooth surface on one side of a worm; therefore, the problem of unstable precision of the rotary table inclined shaft caused by a worm and gear gap is solved. The invention relates to a method for identifying structural parameters of an eccentric cradle body by mainly combining simulation analysis and a multi-objective optimization algorithm. The method comprises the following steps: firstly, constructing a multi-body dynamic model in Adams, obtaining a transmission error and jitter curve through torque scanning, and identifying an optimal input torque interval; and finally, importing the optimized box body model into Adams for coupling simulation verification, and calibrating the simulation model in combination with a laser interference experiment. The method is suitable for various high-precision machine tools, in particular to the field of five-axis machine tool machining requiring high precision and high dynamic performance.

The utility model provides a conveying belt frame fixing block machining fixing tool and belongs to the technical field of machining. Comprising a workbench, a fixing assembly and a machining assembly, wherein the workbench is provided with an inner cavity; the fixing assembly comprises a gear rotationally connected with the inner cavity. The connecting block is pushed to move through the air cylinder, then the toothed plate is driven to move transversely, the gear is driven to rotate through movement of the toothed plate, the toothed plate on the other side of the gear is driven to move oppositely while the gear rotates, and finally the two clamping plates are driven to move oppositely through opposite movement of the two toothed plates. At the moment, the fixing block is placed between the two clamping plates, the two clamping plates move towards the center position to fix the fixing block, the fixing firmness and stability of the fixing block can be improved, meanwhile, the fixing blocks of different sizes can be stably fixed, and the application range of the device is widened.

The utility model discloses an alarm device of a power prediction monitor for a new energy power station, which relates to the technical field of alarm devices and comprises a mounting rack, one side of the mounting rack is rotatably connected with a bottom plate for fixing equipment, the upper surface of the mounting rack is provided with an alarm body, and the side surface of the mounting rack is provided with a rotating mechanism. The rotating mechanism comprises a double-side tooth cylinder, the center of the double-side tooth cylinder is sleeved with a limiting rod, single-side tooth cylinders are fixedly installed on the two sides of the limiting rod, clamping teeth matched with each other are arranged on the inner sides of the single-side tooth cylinders and the surfaces of the two sides of the double-side tooth cylinder, and a limiting rotary knob used for limiting the single-side tooth cylinders is arranged on the surface of one side of the limiting rod. And a mounting mechanism is arranged on the upper surface of the mounting frame, and in the scheme, by arranging the rotating mechanism, the mounting position of the equipment can be adjusted according to use requirements, and the effect of meeting different mounting requirements is achieved.

The utility model discloses a fastener screening device, and belongs to the technical field of screening. The device mainly comprises a base, a supporting table is fixed to the upper side of the base, a toothed plate is arranged on the upper side of the supporting table, movable tables are arranged on the two sides of the supporting table, a plurality of teeth are arranged on the upper sides of the movable tables, one sides of the teeth extend to the upper side of the supporting table, a rotating shaft is rotationally arranged in the supporting table, and the two ends of the rotating shaft penetrate through the movable tables correspondingly. The two ends of the rotating shaft are in threaded connection with the movable tables correspondingly, and the thread directions of the two ends of the rotating shaft are opposite. By rotating the rotating shaft, the two movable tables are close to or away from the supporting table at the same time, on one hand, the device can adapt to nuts of different sizes by adjusting the distance between the teeth on the two sides, and on the other hand, the toothed plate can be kept between the teeth on the two sides so that the toothed plate can lift the middle position of a bolt, and the situation that the bolt slides down is reduced. The fastener screening equipment achieves the effect of having an adjusting function.

The invention provides a rapier loom with an ironing function, and relates to the technical field of rapier looms, the rapier loom comprises a loom mechanism, an ironing mechanism is mounted on the loom mechanism, a supporting plate mechanism is further mounted on the loom mechanism, and the ironing mechanism is located above the supporting plate mechanism; the weaving machine mechanism comprises two side supports, mounting boxes are fixedly connected to the upper surfaces of the two side supports, and two conveying rollers are rotatably mounted on one side between the two side supports. Through the technical scheme, the purpose is that a driving motor is started to drive a driving lead screw to rotate, and the driving lead screw rotates to drive a connecting plate and a side toothed plate to move horizontally; when the side toothed plate makes contact with the driven gear, the driven gear and the rotating shaft can be driven to rotate, then the rotating shaft drives the L-shaped connecting piece to rotate with the rotating shaft as the center, the ironing plate can be driven to move to the position above the knitted fabric, the blanked knitted fabric is ironed, then the processing efficiency is improved, and manual labor is saved.

The invention relates to the technical field of electronic products, and particularly discloses a router which comprises a base, a circuit board, a first shell and a driving assembly, the base is provided with an air inlet and an avoiding opening, and the air inlet is formed in the bottom of the base; the circuit board is arranged on the base, a first light-emitting part and a plug connector are arranged on the circuit board, and at least part of the plug connector is located in the avoiding opening; the first shell is rotationally arranged on the base and covers the peripheries of the circuit board and the first light-emitting part, and the first shell is provided with an air hole; the driving assembly comprises a servo motor, a driving wheel and a gear ring, the servo motor is arranged on the base, the driving wheel is connected with the servo motor, the gear ring is arranged on the first shell, and the inner side tooth part of the gear ring is meshed with the driving wheel. According to the arrangement, the visual attraction and the heat dissipation effect are improved.

The utility model provides a large plate forward polishing turnover tool which comprises a soaking tank body, and universal trundles are correspondingly installed on the periphery of the bottom of the soaking tank body. Placing frames capable of being transversely adjusted and limited are correspondingly arranged on the left side and the right side in the soaking tank body, a plurality of side teeth evenly distributed at intervals are correspondingly arranged on the inner side faces of the opposite sides of the two placing frames, and a heating assembly capable of being pulled out in a sliding mode is correspondingly arranged on the inner side of the bottom of the soaking tank body. According to the utility model, a plurality of products can be transferred at one time, the overall structural design is simple and ingenious, the production efficiency is effectively improved, the manpower is reduced, the potential safety hazard is reduced, the damage risk is reduced, and the practicability is strong.

The utility model relates to an anti-loosening ultra-precision screw for an aviation aircraft, which comprises a bolt and a nut, the bolt is mounted on an aircraft part, a retaining washer is sleeved on a screw rod, inner side teeth on the inner wall of the retaining washer are positioned in a limiting groove on the surface of the screw rod to slide when the retaining washer is mounted, and the retaining washer is fixed on the screw rod after the retaining washer is mounted. After the first nut is installed and fastened, the clamping block on the outer surface of the retaining washer is bent, and the clamping block is bent into the clamping groove, so that the anti-loosening protection effect is achieved, meanwhile, the second nut is installed on the screw rod, and due to the fact that the upper wedge-shaped ring is integrally machined at the bottom of the first nut and the lower wedge-shaped ring is integrally machined at the top of the second nut, the anti-loosening effect is achieved. The upper wedge-shaped ring and the lower wedge-shaped ring are integrally machined, the wedge-shaped tooth parts used in cooperation are integrally machined on the adjacent sides of the lower wedge-shaped ring and the upper wedge-shaped ring, and when the second nut is tightened, due to the arrangement of the upper wedge-shaped ring and the lower wedge-shaped ring, the wedge-shaped tooth parts on the adjacent sides of the upper wedge-shaped ring and the lower wedge-shaped ring are meshed and locked, and looseness caused by vibration of the screw rod is effectively prevented.

Drive (10) for a sash of a door or window, comprising a housing (12), a piston (16) slidably guided in the housing (12) and acted upon by a spring unit (14), and an output shaft (20) rotatably mounted in the housing (12) and connected to the piston (16) via a rack and pinion drive (18), wherein the rack and pinion drive (18) comprises a non-circular pinion (22) connected to the output shaft (20), the teeth (24) of which mesh with a piston-side mating tooth (26), and wherein the effective lever arm length (R) of the pinion-side tooth (24) increases with increasing sash opening angle in an initial sash opening angle range of 0° up to a first predetermined sash opening angle, starting from a relatively higher or maximum effective lever arm length (R0) at the sash opening angle of 0°. decreases, characterized by this,that the effective lever arm length (R) of the pinion-side toothing (24) increases abruptly with increasing wing opening angle from a second predetermined wing opening angle, which is greater than or equal to the first predetermined wing opening angle and less than the maximum wing opening angle, wherein, to generate the abruptly increasing effective lever arm length (R) of the pinion-side toothing (24) or the associated pitch curve jump (48), at least one meshing tooth pair (28, 30) of the pinion-side and piston-side toothing (24, 26) is provided with pressure-side tooth flanks (28', 30') that are extended compared to the pressure-side tooth flanks of the remaining tooth pairs.

The utility model relates to a percussion drill hammerhead which comprises a hammer cap and a hammer core, the hammer cap is fixed on the upper plane of the hammer core, the diameters of circumferential walls between the hammer cap and the hammer core are equal, a lifting hole is formed in the hammer cap, and a lifting assembly used for lifting the percussion drill hammerhead is installed in the lifting hole. Octagonal prism wedge-shaped teeth and octagonal prism wedge-shaped side tooth blocks are fixed to the bottom plane of the hammer core in a partial penetration welding mode, the multiple octagonal prism wedge-shaped side tooth blocks are arranged in pairs and distributed on the circumferential wall of the hammer core at equal intervals, and the multiple octagonal prism wedge-shaped teeth are arranged in the center of the hammer core; according to the utility model, the wear resistance and durability of the impact teeth and the hammer head are improved, the frequency of maintaining and replacing the impact teeth and the hammer head is reduced, the work efficiency of impact hole forming is improved, consumables and other costs are reduced, and the economical efficiency is improved; and the maintenance and replacement frequency is reduced, and smoke and light pollution generated by welding are also reduced.

The application provides a wing rail rotating rack turnout mechanism, which comprises a switch part, a fixed guide rail part, a rotating rail part and a first rack rail; the switch part is used for realizing the switching of a straight side and a curve side of the turnout; the fixed guide rail part is used for realizing the butt joint between the switch part and the rotating rail part of the track; and the rotating rail part is used for connecting the track and the first rack rail. The turnout mechanism connects the rotating straight side rack rail, the rotating curve side rack rail and the wing rail into a whole, reduces the occupied space during the switching of the turnout, greatly reduces the number of movable parts of the rack turnout, realizes the switching of the rack turnout only through the switch and the thrust device, optimizes the action sequence of the turnout structure and makes the driving control simpler.

The utility model provides an automobile auxiliary frame assembly welding clamp, which relates to the field of automobile manufacturing tools and comprises a base, an auxiliary seat is fixedly connected onto the base, a main clamp component is arranged on the base, convex plates are arranged at two ends of the auxiliary seat, and two limit rods are fixedly connected between the two convex plates. The main clamp assembly is controlled to automatically clamp the exteriors of frame bodies at the two ends of the auxiliary frame, and meanwhile the air pressure pushing assembly is utilized, so that the movable block drives the folded plate and the transverse supporting plate to push the inclined inner supporting piece to abut against the inner wall of the auxiliary frame. Force is applied to the inner wall and the outer wall of the two ends of the auxiliary frame at the same time for clamping, and a stable triangular clamping structure is formed. The rotating disc is rotated to drive the screw to rotate, then the middle block is driven to move stably, linear motion is ingeniously converted into rotation of the pin shaft and the inclined inner supporting piece through the meshing relation between the side tooth edge and the gear, and the inclined inner supporting piece can be flexibly adjusted to the angle matched with the angle according to the angle of the inner wall of the frame body at the two ends of the auxiliary frame.

The present disclosure relates to a segmented switched reluctance motor, which includes a stator comprising a stator yoke and one or more pole phase set units arranged on the stator yoke, wherein the pole phase set units are arranged along a circumferential direction of the stator yoke, and wherein each pole phase set unit comprises a plurality of stator tooth portions arranged along the circumferential direction of the stator yoke, each stator tooth portion comprising a middle tooth and side teeth arranged on both sides of the middle tooth, the side teeth being spaced apart from the middle tooth to form a stator slot between the middle tooth and the side teeth, and a plurality of field windings, each of the plurality of field windings being arranged in the stator slot around the middle tooth for generating at least one pair of magnetic poles at each stator tooth portion. The switched reluctance motor of the present disclosure has a shorter magnetic circuit, and thus can improve the iron loss of the motor.

The utility model discloses a tooth grinding wheel for machining broken teeth and a tooth grinding module applying the tooth grinding wheel. The tooth grinding wheel comprises a cylindrical body, first single-face grinding teeth and second single-face grinding teeth. The middle of the cylindrical body is fixedly connected with a rotating shaft, the first single-face grinding tooth is provided with a right grinding face and a left suspension face, the second single-face grinding tooth is provided with a left grinding face and a right suspension face, the left grinding face is integrally connected to the right side of the right grinding face, and the axial distance between the left grinding face and the right grinding face is at least two times of the pitch of a to-be-ground piece; when a to-be-ground piece is machined, the left suspension face and the right suspension face do not make contact with the to-be-ground piece, the right grinding face machines a left tooth mountain of front teeth of the to-be-ground piece, the left grinding face machines a right tooth mountain of rear teeth of the to-be-ground piece in a tooth jumping mode, and the grinding starting point of the left tooth mountain is earlier than that of the right tooth mountain all the time. The tool has the advantages of being high in universality, high in grinding efficiency and suitable for machining a to-be-ground piece with a cylindrical blade on the left side tooth mountain and without a cylindrical blade on the right side tooth mountain, and the service life of the to-be-ground piece is long.

The utility model relates to motor manufacturing technical field especially relates to a motor iron core riveting positioning integrated equipment, including work table, the upper surface of work table is provided with positioning mechanism, the lower surface of top is provided with riveting mechanism. This kind of motor iron core riveting positioning integrated equipment, through the setting of positioning mechanism and riveting mechanism, when using, placing motor iron core, then starting motor, drive screw rod to rotate, the sliding block below diagonal side tooth block follows the sliding groove on the base and slides stably, the sawtooth block is engaged with the gear, will push the tooth block movement, the clamping block will move, three groups of clamping blocks move from different directions towards the center position of iron core placement plate, and the motor iron core is clamped and positioned, then, starting the pneumatic cylinder, the piston in the pneumatic cylinder pushes the lifting plate to move down, and the riveting block also moves down synchronously, approaches motor iron core, and motor iron core is riveted, realizes positioning and riveting integration.

A thick and thin fluted disc comprises a disc body unit, a thin tooth unit and a thick tooth unit. The thin tooth unit comprises a plurality of thin convex teeth, a plurality of front side tooth bottoms and a plurality of rear side tooth bottoms which are arranged among the thin convex teeth in a staggered mode, a thin tooth back face flush with one disc body back face of the disc body unit, and a thin tooth front face. Each thin convex tooth is provided with a driving surface, a slipping surface and a tooth top surface, wherein the slipping surface and the driving surface are asymmetrical in shape. Each rear tooth bottom is provided with a first chamfer connected with the front face of the thin tooth and a second chamfer connected with the back face of the thin tooth. The thick tooth unit comprises a plurality of thick convex teeth and a plurality of grooves connected among the thick convex teeth, each thick convex tooth is integrally formed on the thin tooth front surface of the thin convex tooth behind the rear side tooth bottom, the width of the thick convex tooth is equal to the width of the groove, and the thickness of the thick convex tooth accounts for 30-50% of the thickness of the thin convex tooth. When a chain is driven, the guiding and correcting effects can be achieved.

The invention relates to the field of medical apparatus and instruments, in particular to a tooth adjacent surface cleaning device for people wearing orthodontic fixing appliance. The device comprises a guide part and a body part. The guide part is in a blunt conical shape and is formed by polypropylene in a one-time injection molding mode, the outer surface of the guide part is wrapped with an elastic layer made of thermoplastic elastomer, and a plurality of finger-shaped protrusions are arranged on the surface of the elastic layer. The body part is of a thin-line-shaped structure and is fixed to the tail end of the guiding part. The guide part has certain strength, can directly penetrate through the adjacent gap of the teeth and guide the body part to enter the adjacent gap, the body part is tightly attached to the adjacent face of the teeth on one side, soft dirt and bacterial plaque on the adjacent face of the teeth are removed through up-and-down scraping for multiple times, and cleaning of the adjacent face of the teeth is completed. The device is completely not affected by an orthodontic fixing appliance, the mode of entering the tooth adjacent gap is simple, tooth adjacent surface area cleaning can be effectively completed, meanwhile, the guiding part has certain flexibility, the device is convenient to use in a back tooth area, and cleaning of adjacent surfaces of multiple teeth can be completed.

This core piece of a stator core for an axial gap motor is formed by pressing a soft magnetic powder covered with an insulating material and comprises: a tooth part that extends in a first direction and has a peripheral surface around which a winding is wound; a first brim part that is disposed on one side in the first direction of the tooth part; and a second brim part that is disposed on the side opposite from the first brim part in the first direction of the tooth part. The tooth part has a tooth part inner-side surface and a tooth part outer-side surface that are on opposite sides from each other in a second direction, and a tooth part first-side surface and a tooth part second-side surface that are connected to the tooth part inner-side surface and the tooth part outer-side surface and are on opposite sides from each other in a third direction. The tooth part first-side surface and the tooth part second-side surface are disposed parallel to each other and extend straight in the second direction.

The utility model relates to the technical field of mineral engineering, and provides a spoon head of an ore feeder of a ball mill, which comprises a spoon head, the end part of the spoon head is detachably connected with a wear-resistant part, the wear-resistant part comprises a middle tooth and side teeth, the end part of the spoon head is inserted into the middle tooth, the side teeth are respectively propped against the inner walls of the two sides of the end part of the spoon head, and the inner walls of the two sides of the end part of the spoon head are connected through the middle tooth and the side teeth. And the end part of the spoon head is wrapped by the device, so that ore feeding can be better guided, the impact of mineral aggregates on the spoon head in the ore feeding process is reduced, the abrasion is reduced, the spoon head is more durable, the service life of the device is prolonged, and the production cost is reduced. Meanwhile, when the ore pulp is scooped up, the splashing phenomenon can be avoided, and the ore feeding amount of the ball mill is guaranteed.

The utility model relates to the field, in particular to a multipurpose milling cutter which comprises a cutter handle, an arc-shaped transition part and a cutter body, the cutter body is arranged at one end of the cutter handle, and the arc-shaped transition part is arranged between the cutter handle and the cutter body. Wherein six circumferential blades which are arranged in a right-handed rotation mode are arranged on the periphery of the cutter body, all the circumferential blades are distributed at equal-angle intervals, six end teeth which are arranged at equal-angle intervals are arranged on the end face of the cutter body, a chisel blade is connected between every two non-adjacent end teeth, the six end teeth are correspondingly connected with the six circumferential blades respectively, and side teeth are arranged on each circumferential blade. Due to the arrangement of the end teeth, the circumferential cutting edges and the side teeth, grooves, side faces and end faces of workpieces can be machined, the tool changing step is omitted, the machining efficiency of products can be greatly improved, the tool cost is saved, due to the arrangement of the R corners, the workpieces can be subjected to rounding treatment, the machining efficiency is improved, and the machining cost is reduced. The practicability is improved.

The invention discloses a quenching device and method for improving the hardness of gear teeth of a transmission gear, and relates to the technical field of transmission gear part machining treatment. A tooth opening plate is horizontally fixed in a quenching pool, the tooth opening plate is provided with an upper side tooth opening matched with a gear ring side tooth opening, a tooth opening gap and a jet flow hole communicated with the tooth opening gap, a flow guide box is installed below the tooth opening plate, the flow guide box is connected with a main liquid pipe with an electric control valve, a liquid supply pump and a cooling mechanism, and a sensing probe is arranged in the quenching pool. An elastic hanging assembly is hung on the conduction belt above the quenching bath, and a photoelectric probe is arranged above the conduction belt. A sensing probe monitors the liquid level of a quenching medium; a photoelectric probe triggers a corresponding electric control valve; the quenching medium is injected into a tooth opening gap through a jet hole; the gear rotates to enable all tooth openings to be in full contact with the medium; targeted quenching of the teeth is achieved, quenching is uniform, the overall structural stress of the gear is effectively protected, and the device can also adapt to gears of different specifications.

The application provides a gear shift switching device, which comprises a planet carrier, a sun gear, a planet gear and a fixed ring gear; the planet carrier has a driving end and a rotating end arranged oppositely; the sun gear has an axis extending along a first direction, the sun gear is rotatably installed to the driving end along the axis, and the side tooth surface of the sun gear is sequentially formed with a revolution part and a fixed rotation part along the first direction; the planet gear has an axis extending along the first direction, the planet gear is rotatably and movably installed to the rotating end along the axis and the first direction, and is in mesh with the sun gear, the planet gear has a movement stroke along the first direction to the revolution part or the fixed rotation part; the fixed ring gear is arranged corresponding to the revolution part, the planet gear is in mesh with the fixed ring gear when moving to the revolution part, and is out of mesh with the fixed ring gear when moving to the fixed rotation part.

The invention discloses a method for reducing the cogging force of a permanent magnet linear motor, and the method comprises the steps: fusing an edge end tooth with a first tooth based on an air gap magnetic conductance equivalence principle, and achieving the parallel connection on a magnetic circuit. And the width of the first lengthened tooth is ensured to be the same as that of other teeth, and the length of the first lengthened tooth is changed, so that the cogging force of the linear motor can be greatly reduced without side end teeth, and the running stability of the motor is improved. Meanwhile, the method is suitable for any long-primary permanent magnet linear motor matched with a pole slot. In addition, the method has fewer motor size parameters, and compared with an edge end tooth scheme, the method greatly reduces the optimal time of the motor.