54results about How to "Guaranteed rotation accuracy" patented technology

The invention discloses a miniature zero differential type double-flow transmission gear reduction box which comprises a box body shell, a straight transmission gear set, a steering transmission gear set, a first planetary differential mechanism, a second planetary differential mechanism, a first output gear set and a second output gear set. The straight transmission gear set, the first planetary differential mechanism and the first output gear set are arranged on one side in the box shell, and the steering transmission gear set, the second planetary differential mechanism and the second output gear set are arranged on the other side in the box shell. The first planetary differential mechanism and the second planetary differential mechanism are coaxially arranged and arranged at the two ends of the sun gear shaft correspondingly. The miniature zero differential type double-flow transmission gear reducer can be installed on a miniature crawler-type power platform, has the advantages of being small in size and high in universality, overcomes the defect that crosstalk exists in straight moving power input and steering power input, and achieves high-precision and high-stability rotating speed and torque output of the two extended output shafts.

The invention provides a four-oil-cylinder mold frame rotating device and a rotating method. The four-oil-cylinder mold frame rotating device comprises a mold frame body and a rotating driving mechanism. The rotary driving mechanism comprises a supporting shell, a first driving cylinder, a second driving cylinder, a third driving cylinder, a fourth driving cylinder, an output shaft body, a first piston rack and a second piston rack; the first driving cylinder and the second driving cylinder are arranged on one side of the supporting shell, and the third driving cylinder and the fourth driving cylinder are arranged on the other side of the supporting shell. One end of the first piston rack is movably connected with the first driving cylinder, and the other end is movably connected with the third driving cylinder; one end of the second piston rack is movably connected with the second driving cylinder, and the other end is movably connected with the fourth driving cylinder; the output shaft body is rotationally arranged between the first piston rack and the second piston rack, driving teeth are arranged on the output shaft body, and the first piston rack and the second piston rack are both meshed with the driving teeth; and one end of the output shaft body is connected with the mold frame body. According to the invention, the mold frame and the formed gutter channel can be rotated stably.

The utility model discloses a disc tailstock of a numerical control machine tool. The disc tailstock comprises a shell, a rotating shaft, a bearing, a rotating disc and a brake mechanism. The shell comprises a shell body, a front end cover and a rear end cover, wherein the front end cover and the rear end cover are assembled on two opposite end sides of the shell body respectively. The rotating shaft is supported in the shell main body through a bearing; one tail end of the rotating shaft extends out of the front end cover and then is fixedly connected with the turntable; an abutting part is convexly arranged on the inner side wall of the shell main body towards the central axis of the rotating shaft, and a limiting flange is convexly arranged on the rotating shaft towards the abutting part; the brake mechanism comprises a brake pad and a brake linkage device used for braking the brake pad towards the abutting portion, the brake pad is arranged on the rotating shaft in a sleeving mode, the inner circle end of the brake pad is fixed to the limiting flange in an abutting mode, a first avoiding gap is formed between the outer circle end of the brake pad and the abutting portion, and the brake linkage device is fixed to the inner side face of the rear end cover. The specific structure and the assembly structure of the brake mechanism are optimized, so that the brake mechanism is reliable in structure and convenient to replace and maintain.

The utility model provides a battery lifting appliance and a battery replacing station. The battery lifting appliance comprises a base frame, at least one hook assembly and at least one driving component, the hook assembly is arranged on the base frame. The hook assembly comprises a hook, and the hook can pivot between a hoisting position and a releasing position around a first axis extending in the vertical direction. The driving components are arranged on the base frame and correspond to the hook assemblies one to one. The driving component comprises an execution part, and the execution part extends in the horizontal direction; the execution part can move between a first position and a second position in the extending direction of the execution part. The execution part is connected to the hook to drive the hook to pivot. When the execution part is located at the first position, the hook is located at the hoisting position, and when the execution part is located at the second position, the hook is located at the releasing position. According to the battery lifting appliance disclosed by the utility model, the driving components are in one-to-one correspondence with the hook components, so that a transmission structure between the hook components and the driving components is simpler and more direct, and the rotation precision of the hook components is ensured.

The invention relates to the technical field of secondary ion batteries, and discloses a forming device surface manufacturing device for a micro-modeling battery pole piece, which comprises a lathe bed, an X-axis module and a mounting bracket are arranged on the lathe bed, a workbench is arranged on the X-axis module, a supporting seat and a motor seat are arranged on the workbench, a forming device is rotationally connected to the supporting seat, and a motor is arranged on the motor seat. A torque motor is arranged on the motor base and drives the forming device to rotate. A Y-axis module is arranged on the mounting bracket, a first sliding table and a second sliding table are arranged on the Y-axis module, and a first Z-axis module and a second Z-axis module are respectively arranged on the first sliding table and the second sliding table; according to the forming device surface manufacturing device for the micro-modeling battery pole piece, the problem that existing machining equipment is low in machining precision and machining efficiency is solved.

The invention discloses a bearing spindle structure and a grinding machine. The bearing spindle structure comprises a shell; the shaft body is rotationally arranged in the shell in a penetrating mode, the shaft body comprises a first shaft part and a second shaft part, and the first shaft part is close to the end of the shaft body relative to the second shaft part; the first bearing structure comprises a first inner ferrule, a first outer ferrule and a first rolling assembly arranged between the first inner ferrule and the first outer ferrule, the first inner ferrule is sleeved with a first through hole extending in the axial direction of the shaft body, and the first bearing structure is provided with an axial adjustable clearance and a radial adjustable clearance; the first inner ferrule is connected with the first shaft part in an interference fit mode, and the outer diameter of the first shaft part is gradually increased in the direction close to the second shaft part. And the end cover is used for fixing the first outer ferrule. The main shaft has the beneficial effects that the rotation precision of the first bearing structure can be improved when the rotating speed of the main shaft is relatively high, so that the machining quality is ensured.

The utility model discloses a kind of support seat structures of reduction gear of sedimentation tank, it is related to reduction gear support seat technical field, including reduction gear base, and the main shaft matched with reduction gear base is used, the transmission assembly that can drive main shaft rotation is assembled on the reduction gear base;Utilize bearing seat and gland to realize the accurate support and axial limit of bearing, while through rubber gasket adjustment concentricity and centring, reduce main shaft deformation and vibration, ensure rotation accuracy, reduce bending fracture risk;Optimized sealing design, use oil seal and sealing ring to prevent impurities from entering and lubricant leakage, maintain internal cleanliness and good lubrication, reduce wear and tear;Adopt rubber vibration isolation pad and reinforcing part, vibration is isolated respectively, enhance rigidity, reduce bearing vibration impact damage;Cooperate with protective components, such as bearing seat, gland and oil seal, block impurities from invading, prevent lubricant leakage, ensure bearing lubrication, improve its service life.

The application discloses an automatic conveying line and relates to the technical field of automatic equipment, which comprises a frame, a plurality of working boxes arranged on the frame, sliding rails installed on the frame and penetrating through the working boxes, a plurality of sliding blocks uniformly arranged on the sliding rails, a same driving mechanism drivingly connected with the sliding blocks, the driving mechanism driving the sliding blocks to slide along the sliding rails, support rods rotatably installed on the sliding blocks, products to be conveyed fixedly installed on the top of the support rods, rollers fixedly installed at the bottom of the support rods and friction belts selectively installed on the frame and abutting against the rollers in one or more working boxes. The automatic conveying line has the advantages that the same driving mechanism is used to drive the plurality of sliding blocks, so that the investment in the driving device is reduced; the rollers and the friction belts are arranged, so that no additional power is needed when the products to be conveyed are rotated in the conveying process; one conveying line can realize the completion of multiple processes, no additional manpower is needed for connection, and the automation degree of the conveying line is improved.

The invention discloses a photoelectric tube alignment method and an alignment device thereof, and relates to the technical field of photoelectric tube alignment, the photoelectric tube alignment device comprises a photoelectric tube and a reflecting plate, and further comprises a positioning assembly and a calibration assembly, the positioning assembly comprises a positioning cylinder, and a limiting ring used for fixing one end of the photoelectric tube is arranged in the positioning cylinder; a supporting piece for limiting and supporting the other end of the photoelectric tube is arranged in the positioning cylinder; the calibration assembly comprises an adjusting part arranged in the positioning cylinder, the limiting ring rotates in the adjusting part through the transmission shaft, and the end, located in the limiting ring, of the photoelectric tube is aligned with the central axis of the transmission shaft. The first motor is controlled through the controller, and left-right angle calibration of the photoelectric tube relative to the reflecting plate can be achieved; the second motor is controlled by the controller, so that the vertical elevation angle calibration of the photoelectric tube relative to the reflecting plate can be realized; and through the mutual cooperation of the first motor and the second motor, the photoelectric tube can be accurately, rapidly and automatically calibrated through the analysis of the controller.

This utility model belongs to the field of bearings, specifically relating to a shaft bearing for an automotive electronic water pump. It includes a shaft with an inner ring on its surface. A plurality of balls are fitted onto the surface of the inner ring, arranged at equal intervals. An outer ring surrounds the balls. The inner ring has retaining ring grooves at both the top and bottom. Dustproof plates are installed on both sides of the retaining ring grooves, with their outer sides located at the top and bottom of the outer ring. An installation mechanism is connected to the interior of each dustproof plate. This utility model, by adding retaining ring grooves to the inner ring and installing dustproof plates at the top and bottom of the outer ring within these grooves, effectively prevents external impurities and dust from entering the gap between the inner and outer rings. This avoids damage to the balls from impurities, reduces wear, ensures the bearing's rotational accuracy, reduces noise and vibration, and extends its service life.

The present invention aims to provide a cam-connecting rod rotating mechanism with eccentric rotation, small space occupation and wide applicability. The present invention includes a base plate, a fixed plate, a driving motor, a floating assembly, a transmission assembly and a rotating plate. The fixed plate is arranged on the base plate, and the driving motor is movably matched with the fixed plate through the floating assembly. The transmission assembly includes a worm, a worm wheel, a connecting block, a pulley and a rotating block. The driving motor, the worm, the worm wheel and the connecting block are sequentially connected in transmission. The end of the worm wheel away from the connecting block is rotatably connected to the base plate. A waist-shaped hole is provided on the connecting block, and the pulley is slidably matched on the waist-shaped hole. The pulley, the rotating block and the rotating plate are sequentially connected in transmission. The present invention is applied to the technical field of electronic product screen detection.

The invention discloses a gyroscopic oscillator for drilling operations, which relates to the field of mechanical manufacturing technology and comprises: a joint, the outer wall of the joint is clamped with a shell, the inner wall of the shell is fixedly connected with a guide column 1, and the inner wall of the joint is fixedly connected with a guide column 2; a filter component, the inner wall of the filter component is fixedly connected to a side of the shell away from the joint, and an oscillation component; the device is provided with an oscillation component, and through the structural design of the oscillation component, it can convert the energy of liquid flow into rotational power and then generate oscillation, and the components such as the rotating shaft, blades, connecting shaft, connecting tube, connecting sleeve and paddles work together, when the liquid flows through, the blades and paddles are subjected to the force of the fluid to rotate the rotating shaft, and this multi-component linkage mode can generate sufficient and stable oscillation force, which can be transmitted to the drill bit to help the drill bit better break rocks and improve drilling efficiency.

The present invention relates to the technical field of injection molding machines, and discloses a hollow shaft hydraulic motor for an injection molding machine. The hollow shaft hydraulic motor is used to drive a screw of the injection molding machine, and comprises: an outer shell, the side wall of the outer shell is arranged in a cylindrical shape; a main shaft rotatably arranged in the outer shell, the main shaft is provided with connecting holes penetrating the two end surfaces of the main shaft, the center line of the connecting hole and the center line of the outer shell are located on the same straight line, and one end of the screw can be movably clamped in the connecting hole; a driving member, the driving member is arranged on the outer shell, and is used to drive the main shaft to rotate. The advantage of the present invention is that the setting of the connecting hole simplifies the motor structure and saves production costs, and one end of the screw can be movably clamped in the connecting hole and rotates with the main shaft, and there is no need to adjust the concentricity of the main shaft and the screw, which simplifies the installation process.

The present invention relates to a high-frequency deflaking machine with a pretreatment function, comprising a machine body, a fixed grinding disc and a rotating grinding disc arranged in the machine body, a pulp inlet pipe and a pulp outlet pipe, wherein the fixed grinding disc is connected to the end of the machine body, the rotating grinding disc is coaxially arranged with the fixed grinding disc, a rotating mechanism is fixedly connected to the center of the rotating grinding disc, the rear side of the rotating grinding disc is connected to a pulp inverted cone pipe, and the pulp inlet pipe is arranged above the rear side of the rotating grinding disc; the small opening of the pulp inverted cone pipe faces the rotating grinding disc side, is connected to the pulp inlet pipe at the top, and is connected to a funnel-shaped heavy slag collecting trough at the bottom, the lower part of the funnel of the heavy slag collecting trough is connected to a slag discharge valve, the heavy slag is separated in advance through the heavy slag collecting trough, and primary deflaking is completed, thereby pre-separating and collecting impurities in fiber bundles (clusters), and timely removing the heavy slag, thereby alleviating the screening requirements of subsequent equipment.

The utility model provides a kind of high-speed internal grinding wheel connecting rod, belong to mechanical technical field.It has solved the problem of high scrap cost of existing connecting rod.The high-speed internal grinding wheel connecting rod is installed in the front end of main shaft, including the connecting rod body being arranged in the front side of main shaft and being coaxial with main shaft, the front end of connecting rod body is provided with threaded hole one in axial direction, outer thread is arranged on the rear end of connecting rod body, annular connecting flange is arranged between connecting rod body and main shaft, connecting flange and main shaft are coaxially arranged and can be detachably fixed;Inner thread matched with outer thread is arranged on the inner hole wall of connecting flange, the rear end of connecting rod body is inserted into connecting flange and the both are connected together by inner thread and outer thread engagement.The high-speed internal grinding wheel connecting rod has low scrap cost.

The utility model discloses a butterfly valve for purifying a flue, and relates to the technical field of valves. According to the technical scheme, the valve comprises a valve body, a valve plate and a rotating shaft, the rotating shaft penetrates through a sleeve and is connected with the sleeve through a pin, and the upper side and the lower side of the valve body are each provided with a shaft hole; the two ends of the sleeve and the two ends of the rotating shaft are located in the two shaft holes correspondingly, and the two shaft holes are each internally provided with a fixing assembly. The fixing assembly comprises a hubbed flange, and the hubbed flange is arranged outside the sleeve and the rotating shaft in a sleeving mode. The hubbed flange is connected with the rotating shaft through a bearing; and a sealing unit for preventing smoke leakage is arranged in a gap between the hubbed flange and the sleeve. When the butterfly valve is opened and closed, the rotating shaft for driving the valve plate is connected with the valve body through the bearing, so that labor is saved during operation, the precision is better controlled, the bearing and the rotating shaft do not make contact with smoke in the using process, tar and dust in the smoke can be effectively prevented from blocking the bearing and the rotating shaft, and the service life of the butterfly valve is prolonged. The normal work is influenced.

The utility model relates to a corrugated pipe valve rod and corrugated pipe welding operation structure which comprises a clamping tool, a welding device is arranged on one side of the clamping tool, the clamping tool comprises a tool bottom plate, and a chuck, a roller support set and a pressing mechanism are arranged on the tool bottom plate. The chuck is located at the end of the tool bottom plate. The roller support set is located in the middle of the tool bottom plate and comprises symmetrically-arranged roller supports, each roller support comprises a bottom plate installed on the tool bottom plate, a vertical plate is fixedly installed on the bottom plate, a roller plate is installed on the vertical plate, and a pair of rollers is installed on the roller plate. The pressing mechanism comprises a pressing air cylinder, and the piston end of the pressing air cylinder is vertically downward and provided with a pressing block. The rotating automation and the rotating precision of the valve rod can be ensured, the operation is simple, and the large-scale production efficiency is high.

The utility model relates to intelligent storage equipment technical field discloses a bevel gear turntable device for intelligent storage equipment adjustment, including base, be equipped with transmission mechanism and response module on the base, be equipped with the rotary disc of response module monitoring on transmission mechanism, the outside of base is pasted with fine adjustment board, is equipped with the power mechanism of drive transmission mechanism work on fine adjustment board, be equipped with locking piece and fine adjustment module between fine adjustment board and base, fine adjustment board is positioned in the outside of base through locking piece, fine adjustment board carries out linear movement along the central axis of rotary disc through fine adjustment module, fine adjustment module includes the screw control spare of swing connection on base, and the lifting plate of fixed on fine adjustment board, is equipped with the screw hole of screw connection for screw control spare on lifting plate. The utility model can accurately position the rotation angle of rotary disc, can guarantee the rotation precision of rotary disc, can also satisfy the different precision requirement of different size storage space.

The invention discloses an infrared treatment device. The infrared treatment device comprises an infrared transmitter, an upper branch pipe, a lower branch pipe and a base connected in sequence, an adjustment shaft is arranged between the infrared transmitter and the upper branch pipe, an upper shell of a joint shaft and a lower shell of a joint shaft are arranged between the upper branch pipe and the lower branch pipe, the top of the upper shell of the joint shaft is connected to the upper branch pipe, and the lower shell of the joint shaft is connected to the lower branch pipe, and also comprises a rotating shaft core, one end of the rotating shaft core is a one-way clutch gear, and the other end is a spur gear, a tooth groove is arranged inside the upper shell of the joint shaft to cooperate with the one-way clutch gear, and a rack is arranged inside the lower shell of the joint shaft to cooperate with the spur gear. The present application can realize one-way rotation with a certain resistance, and can realize two-way rotation by entering a two-way rotation state through a button, so as to facilitate the adjustment of the angle and position of the infrared transmitter.

The invention discloses argon arc welding equipment and belongs to the technical field of welding equipment.The argon arc welding equipment comprises a base and clamping assemblies and further comprises a vertical frame, the clamping assemblies comprise the first clamping assembly and the second clamping assembly, the first clamping assembly is fixed to the vertical frame, and the second clamping assembly is installed on the vertical frame or the base; the first clamping assembly and the second clamping assembly are each provided with a workpiece clamping cavity. The second clamping assembly comprises a chuck jaw and a chuck seat, the chuck seat is provided with a driving mechanism, and the first clamping assembly is provided with a roller; the cooling assembly is fixed on the chuck seat; the cooling assembly comprises a heat conduction cylinder with a plurality of heat conduction sheets; the cooling assembly is provided with a cold fluid flowing pipeline, a heat transfer structure is arranged between the cold fluid flowing pipeline and the heat conducting fin, and the welding device is suitable for welding of the circular weld joint on the side face of the long-shaft-shaped workpiece and has the advantage of being capable of guaranteeing the quality of the welded workpiece.

The present invention discloses a stator twisting and clamping device and a twisting method, comprising a twisting assembly and a clamping assembly, wherein the twisting assemblies are respectively arranged at two sides of the clamping assembly in opposition, the clamping assembly clamps the coil core, and the twisting assembly twists the coil core; the clamping assembly comprises a hydraulic assembly, a pulling shaft, an upper pressure head, a clamping plug, a tire core, a lower support and a supporting surface; the lower support is arranged on the supporting surface, the hydraulic assembly is arranged at the lower position of the supporting surface, the pulling shaft is fixedly connected to the hydraulic assembly, the lower support and the supporting surface are provided with a through hole matching the diameter of the pulling shaft, and the pulling shaft penetrates the through hole; in the present invention, when the twisting shaft moves radially, the first rotating gear can move stably radially along the gear on the second gear shaft, and at this time, the second rotating gear can move stably radially along the gear on the first gear shaft; the overall stability and smoothness of the movement of the twisting shaft are ensured, thereby ensuring the rotation accuracy during twisting.

The present invention relates to the field of forming machines, and provides a water ditch forming machine, including a frame, a material distribution mechanism, a conveying mechanism, a lifting mechanism, a forming mold frame, a rotating drive mechanism, a pallet, and a pallet hook mechanism. The two ends of the forming mold frame are movably connected to the frame through a lifting mechanism, the conveying mechanism is arranged below the forming mold frame, and the material distribution mechanism is horizontally and movably arranged above the forming mold frame; a water ditch cavity is formed in the forming mold frame, and a demoulding plate mechanism is movably arranged at one end of the water ditch cavity; the pallet is placed on the side of the demoulding opening of the water ditch cavity corresponding to the forming mold frame; both ends of the forming mold frame are rotatably connected to the lifting mechanism through a rotating drive mechanism; both ends of the forming mold frame are provided with a pallet hook mechanism, and the pallet placed on the forming mold frame is hooked by the pallet hook mechanism during rotation. The advantages of the present invention: it can effectively improve the production efficiency of the water ditch, can meet the needs of large-scale production, and can also ensure the production quality of the water ditch.

The application discloses high-purity bearing steel and application thereof, and has the following components in percentage by mass: C 0.95%-1.05%, Si 0.45%-0.65%, Mn 0.45%-0.65%, Cr 1.10%-1.30%, trace Mo, Ni and Cu; impurities such as O≤0.0010%, S≤0.0080%, Ti≤0.0030% and Ca≤0.0010% are strictly controlled, the upper limit of single elements such as As, Sn, Sb, Pb and Bi is limited and the total amount is ≤0.035%, and the balance is iron. The application adopts medium-silicon manganese, low-chromium main alloy and super-low impurity control, greatly reduces MnS, TiN and oxide inclusions, suppresses residual element grain boundary segregation, balances low-sulfur steel cutting performance with trace calcium, and improves high-temperature hardness with trace molybdenum. After heat treatment, the hardness is ≥HRC61, the L10 fatigue life under 4.5GPa is 2.5-3 times higher than that of conventional GCr15, and high toughness and dimensional stability are combined. The application does not need precious alloy, the production process is mature, and is suitable for multi-roll cold rolling machine backing bearing, precision rolling machine supporting roller bearing and wind power main shaft bearing.

The invention provides a hydraulic slip ring device which comprises a cylinder barrel, a gland II and a plunger II, an integral type is changed into a split type, an outer ring of a fourth deep groove ball bearing is used as a positioning pin at the connecting part of a cylinder barrel III and the cylinder barrel II, the coaxiality of the two barrels is ensured, an inner ring of the fourth deep groove ball bearing is fixed on the plunger II, and the inner ring of the fourth deep groove ball bearing is fixed on the plunger II. The rotation precision of the cylinder barrel II and the cylinder barrel III is ensured; meanwhile, an inserting hole and an inserting column are arranged, and the inserting column is inserted into the inserting hole to be matched with a fourth deep groove ball bearing to achieve the coaxiality of the third cylinder barrel and the second cylinder barrel; by improving the structure of the slip ring, the working machining precision is improved, the machining difficulty is reduced, the machining cost is reduced, and the performance of a product is more stable. A sealing piece is arranged at the connecting position of the third cylinder barrel and the second cylinder barrel, it is guaranteed that the fourth deep groove ball bearing is waterproof and dustproof through the sealing piece, and the service life of the fourth deep groove ball bearing is prolonged. And the time cost and the maintenance cost caused by equipment maintenance are reduced.

The invention provides a forming method of a water groove, which comprises the following steps of: distributing a material into a forming die frame through a material distributing mechanism, and performing vibration forming on the material in the forming die frame to obtain the water groove, a supporting plate is placed on the top of the forming die frame, and the supporting plate is hooked through a plate hooking mechanism; the forming die frame, the formed water groove and the supporting plate are driven by the rotary driving mechanism to rotate by 180 degrees together, so that the supporting plate rotates to the position below the water groove and supports the water groove; the lifting mechanism drives the forming die frame, the formed water groove and the supporting plate to descend together, so that the supporting plate is supported on the conveying mechanism; and the hook plate mechanism is controlled to loosen the supporting plate, the forming mold frame is controlled to ascend to achieve demolding, the supporting plate and the demolded water groove are output through the conveying mechanism, and the rotary driving mechanism drives the forming mold frame to reversely rotate by 180 degrees to return. The automatic production line has the advantages that automatic production of the gutter grooves can be well achieved, so that the production efficiency of the gutter grooves is effectively improved, and the production quality can be guaranteed.

The present invention discloses a grinding wheel dresser, comprising a motor and a mandrel driven by the motor, and also comprising two diamond rollers for dressing different types of grinding wheels, wherein the diamond rollers are coaxially fixed to the mandrel. An adjustment mechanism is provided on each of the two diamond rollers, and the adjustment mechanism is used to adjust the end faces of the diamond rollers so that the end faces of the diamond rollers are perpendicular to the axis of the mandrel. The present invention installs two diamond rollers for dressing different types of grinding wheels at the end of the mandrel, which can greatly increase the types of grinding wheels that can be dressed by the grinding wheel dresser, improve the adaptability of the grinding wheel dresser, and enhance the online dressing capability of the grinding wheel dresser. The present invention also discloses a method for installing a diamond roller on a grinding wheel dresser, and the rotation accuracy of the diamond is ensured by adjusting the top screw and the ball.

The utility model discloses a multi-wire cutting machine geneva wheel mechanism which comprises two geneva wheel devices and a supporting assembly, the two geneva wheel devices are arranged in parallel, each geneva wheel mechanism comprises a geneva wheel assembly, a driving device and a pull rod, and each geneva wheel assembly comprises a geneva wheel and conical block assemblies detachably fixed to the two ends of the geneva wheel. The grooved wheel is provided with a first axial center through hole in the axial direction, the two ends of the first axial center through hole are conical and matched with the conical block assembly, the driving device comprises a bearing assembly and a motor assembly, the bearing assembly comprises a first bearing box and a second bearing box, and the first bearing box and the second bearing box are arranged at the two ends of the grooved wheel assembly respectively. A second axial center through hole is formed in the second bearing box in the axial direction, the pull rod penetrates through the second bearing box and the first axial center through hole and is connected with the first bearing box, and the motor assembly is connected with the first bearing box; the device is simple in structure and convenient to disassemble and assemble, the working efficiency is improved, and the equipment replacement and labor cost is saved.

The utility model provides an on-load tap-changer split-type core body and an on-load tap-changer, and the on-load tap-changer split-type core body comprises a transmission mechanism which comprises an instantaneous rotating shaft, a slot shifting piece, a grooved wheel and a machine base plate, the grooved wheel comprises a grooved wheel shaft, a switching shaft connected with one end face of the grooved wheel shaft and a gear disc arranged between the grooved wheel shaft and the switching shaft in a sleeved mode, the grooved wheel shaft and the transient rotating shaft are arranged in the machine base plate in a penetrating mode, the transient rotating shaft is sleeved with the groove poking piece, and the transient rotating shaft can drive the groove poking piece to rotate. The slot shifting piece is clamped with a gear of the gear disc so as to drive the gear disc to rotate; and the switching shaft is inserted into the main shaft so as to drive the main shaft to rotate. The transmission mechanism and the main shaft are connected in an inserted mode, so that when the core body is installed and maintained, the whole core body does not need to be installed and taken out every time, the operation process is simplified, the assembling and debugging time is saved, and the production efficiency is improved.

The utility model discloses a pure oxygen burner which can solve the problem that the angle of an existing pure oxygen burner cannot be adjusted. The driving motor can drive the combustor shell to rotate in the horizontal direction as a rotating shaft, so that the angle of the combustor shell can be adjusted more flexibly and conveniently. Transmission is conducted through the connecting shaft, the first gear and the second gear, the transmission effect is good, the structure is reasonable, the driving motor can be arranged at the position far away from the combustor shell, and it is avoided as much as possible that use of the driving motor is affected by high temperature.

The present invention provides a compressor oil supply structure and a compressor, which relates to the technical field of compressors, and solves the technical problem that the oil supply effect of the new compressor structure existing in the prior art is not ideal. The compressor oil supply structure and the compressor include a center rod; a crankshaft, wherein a center hole is arranged inside the crankshaft, the center rod extends into the center hole, and the crankshaft is rotatably connected to the center rod through a bearing, and an oil supply gap is formed between the center rod and the inner wall of the center hole; an oil supply assembly is arranged on the crankshaft and / or the center rod, and the oil supply assembly is connected to the oil supply gap to transport lubricating oil to the oil supply gap. The present invention is used to provide a compressor oil supply structure and a compressor that ensure the lubrication of the compressor and improve the performance of the compressor.