49 results about "Shaft collar" patented technology

The utility model provides a conductive roller with an internal cooling structure, which comprises a transmission shaft and a roller mounted on the transmission shaft, first shaft rings are correspondingly arranged on two sides of the transmission shaft, and the first shaft rings on two sides of the transmission shaft are hermetically connected with two sides of the roller; a second shaft ring is correspondingly arranged on one side of the transmission shaft in the roller, an annular first cooling liquid cavity is correspondingly formed between the second shaft ring and the first shaft ring close to one side, and an annular second cooling liquid cavity is correspondingly formed between the second shaft ring and the first shaft ring far away from the other side; a spiral cooling liquid channel is correspondingly machined in the roller wall of the roller, and one end of the spiral cooling liquid channel communicates with the interior of the first cooling liquid cavity. The conductive roller provided by the utility model is relatively rapid and uniform in cooling and relatively good in cooling effect, the condition of non-uniform cooling of the conductive roller caused by relatively large temperature difference of cooling liquid flowing through two sides of the conductive roller is well avoided, and the conductive roller is high in practicability.

The utility model provides an end face sealing structure of a screw air compressor, which relates to the technical field of screw air compressors and comprises a machine body and a sealing structure. An end cover is fixedly connected to one end of the machine body, an inlet is formed in the top of the end cover, an outlet is formed in the bottom of the machine body, a sealing structure is arranged at the end of the machine body, and the sealing structure comprises a connecting protruding column fixedly connected to the end of the machine body, and an assembling ring groove is formed in the inner side wall of the connecting protruding column; the fixed inner ring is fixedly connected into the assembly ring groove, mounting carrying grooves are formed in the two sides of the assembly ring groove, through the arrangement of the sealing structure, the attaching shaft ring and the rotating belt shaft are made of special materials, the sealing contact faces of the attaching shaft ring and the rotating belt shaft can be tightly attached after precision machining, leakage of compressed air is effectively reduced, and the service life of the rotating belt shaft is prolonged. Meanwhile, under the action of the elastic piece, the pre-tightening force can be automatically adjusted according to the abrasion condition of the sealing face, it is guaranteed that the sealing face is tightly attached all the time, and the sealing performance is greatly improved.

The invention provides an integral track gearbox. The gearbox comprises an input gear shaft assembly, a gear shifting shaft assembly, a speed changing shifting fork assembly, a speed changing shaft assembly, a steering shaft assembly, an idle shaft assembly, a left output shaft assembly, a right output shaft assembly and a gearbox shell. The gear shifting shaft assembly is composed of a gear shifting shaft, a third bearing, a gear shifting main gear, a first-gear gear, a first needle bearing, a first needle bearing inner ring, a first spline housing, a first gear switch, a third-gear gear, a second needle bearing, a second needle bearing inner ring, a first spacer bush, a second-gear gear, a third needle bearing, a third needle bearing inner ring, a second spline housing, a second gear switch, a gear shifting shaft collar and a fourth bearing. Accumulated errors are eliminated, the part installation position precision is improved, and the operation performance is improved; the maintenance efficiency is improved and the maintenance cost is reduced; the strength performance of the gearbox assembly is improved; the failure rate of crawler driving wheel parts is reduced, and the safety performance is improved; machining difficulty of the track driving wheel is reduced, cost is saved, and efficiency is improved.

Planetary gear set with a planet carrier (5) and a planet gear shaft (2), wherein one area of ​​the planetary support (5) is shaped as a first cheek, wherein the first cheek has an axially through recess into which the planet gear axis (2) is at least partially inserted, characterized by the fact that an axially directed threaded bore is provided in the end face of the planet gear shaft (2), wherein a screw (4) is screwed into the axially directed threaded bore, so that a spring element (6) is pre-tensioned, which secures the screw connection between screw (4) and planet gear shaft (2), wherein the area axially covered by the screw (4) overlaps at least with the axial area covered by the recess, wherein the spring element (6) is pre-tensioned and / or presses against the wall of the recess, wherein a planet gear (1) is rotatably mounted on the planet gear axis (2) by means of a bearing, wherein the planet gear (1) is positioned against a collar of the planet gear axle (2), wherein the screw (4) has a screw head, wherein the spring element (6) is arranged axially between the screw head and the end face of the planet gear shaft (2), wherein the spring element (6) is designed as a perforated disc, the axially covered area of ​​which shifts monotonically in the axial direction with increasing radial distance from the screw axis and / or central axis of the planet gear axis (2), wherein the outer edge of the perforated disc touches the wall of the recess and the inner edge of the perforated disc touches the screw (4), wherein the planet gear axle (2) has a collar with which it is positioned against the planet carrier (5), namely against an edge of the recess of the planet carrier (5).

The utility model relates to a tension roller reliable in work and a tension roller device adopting the tension roller, a roller body cooling structure is arranged in a roller body of the tension roller, a sealing type bearing seat is arranged in the roller body, and a limiting shaft ring and a sealing core shaft are arranged on one side, away from the roller body, of the sealing type bearing seat. The limiting shaft rings are fixedly connected with the corresponding shaft heads and abut against the sealing type bearing seats. The sealing mandrels are fixedly connected to the corresponding shaft heads, mandrel gaps are formed between the sealing mandrels and the limiting shaft rings, water collecting grooves are formed in the mandrel gaps, at least one lip-shaped water seal is arranged on each of the two sides of each water collecting groove, and a medium backflow channel of the roller body cooling structure is communicated with the water collecting grooves. The lip-shaped water seals are arranged on the two sides of the water collecting tank respectively, in the rotating process of the tension roller, return cooling water does not enter the bearing seat, the long service life is kept, dry oil is injected for lubrication and sealing, the dry oil polluted by water can be directly discharged out of the tension roller through the water collecting tank, and therefore the working reliability of the tension roller can be effectively improved.

The utility model discloses a manual corrugated pipe valve which comprises a valve body, a lower valve rod, a corrugated pipe assembly, a valve cover, an upper valve rod and a hand wheel, a limiting step face is arranged in the middle of the length direction of the lower valve rod, the manual corrugated pipe valve further comprises a guide sleeve, and the guide sleeve is arranged on the lower valve rod in a sleeved mode and enables the lower valve rod to move axially relative to the guide sleeve. The lower end of the guide sleeve is inserted between the corrugated pipe assembly and the lower valve rod, the upper end of the guide sleeve is provided with a guide sleeve flange, the guide sleeve flange extends out of the upper part of the shaft ring, and the valve cover presses the shaft ring on the valve body flange through the guide sleeve flange; when the hand wheel is rotated clockwise to drive the lower valve rod to move upwards, a corrugated pipe of the corrugated pipe assembly is compressed; when the limiting step surface on the lower valve rod touches the lower end of the guide sleeve for limiting, the lower valve rod cannot be moved upwards continuously to compress the corrugated pipe, so that the manual corrugated pipe valve is prevented from being opened excessively, the reliability of the manual corrugated pipe valve is improved, the service life of the manual corrugated pipe valve is prolonged, and the corrugated pipe is prevented from being deformed and abraded.

The utility model discloses a fan assembly and a duct type air conditioner, and belongs to the technical field of air conditioners. The fan assembly comprises a motor, a fan, a fixing piece and a fastening piece. The fan comprises a shaft ring extending in the axial direction of the fan, and the shaft ring is provided with a penetrating part used for allowing a driving shaft connected with the motor to penetrate through; the avoiding part is arranged on the side wall of the shaft ring, and the avoiding part communicates with the penetrating part; the fixing piece is connected to the shaft ring and comprises an end plate, a connecting piece and a connecting piece, and the driving shaft is sleeved with the end plate. The platform part is connected with the end plate and is positioned on the outer side of the shaft ring; the inserting part is connected to the side, away from the end plate, of the platform part, and the inserting part is inserted into the fan so as to limit rotation of the inserting part relative to the fan; and the fastening piece is in threaded connection with the platform part and penetrates through the avoiding part, and the end of the fastening piece abuts against the driving shaft so as to abut against the driving shaft. The duct type air conditioner comprises the fan assembly. According to the fan assembly and the duct type air conditioner, the connection between the shaft and the fan is simplified, and the cost is reduced.

A kind of position signal indicating device for totally enclosed electric gate valve, including stator, rotor, permanent magnet, magnetic column, magnetic disk, screw plug, stator coil etc.;Its characterized in that: the stator of the valve position signal indicating device is embedded in the base of electric transmission device, uses elastic shaft collar for axial positioning, the rotor, i.e.the output gear shaft of electric transmission device is hollow structure, the permanent magnet is distributed in the light hole of the stator, magnetic column is evenly arranged in the specific plane in the radial direction of rotor, the magnetic disk moves linearly along the axis of hollow rotor by ball screw, the screw plug is cylindrical structure, outer cylindrical surface is provided with thread, is fixed in the threaded hole of the stator by threaded connection.

Drilling devices, systems, kits and methods for drilling cartilage defects are disclosed. A system includes a handle device having an adjustable shaft collar rotatable to adjust a drill set distance between the adjustable shaft collar and the handle. The handle device can include a distal drill guide extending from the handle at an end opposite the adjustable shaft collar. The system includes a drill collar attachable to a drill bit and configured to remain stationary along a length of the drill bit once attached. The system includes a rotatable disk positionable between the adjustable shaft collar and the drill collar. The rotatable disk can include a central hole sized to accept the drill bit.

1. The name of the design product: split type shaft collar. 2. The use of the design product: excavator shaking arm and excavator bucket connecting shaft collar. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The utility model discloses an energy-saving waterproof micro motor, which relates to the technical field of micro motors, and comprises a sealing shell, the sealing shell is provided with a metal shell, the side surface of the metal shell is provided with a lead clamping groove for installing a waterproof wiring shell, and the waterproof wiring shell is clamped at the inner side of the lead clamping groove; one end of the metal shell is fixedly connected with a sealing cover, the other end of the metal shell is fixedly connected with a sealing heat dissipation cover, a positioning ring inserted into the metal shell is integrally arranged on the side face of the sealing cover, and a motor shaft further penetrates through the side face of the sealing cover; according to the utility model, the sealing cover covers the end part of the metal shell, the positioning ring is inserted into the inner side of the metal shell to play a role in positioning, and the sealing rubber ring is arranged on the inner side of the sealing shaft ring, so that the sealing effect between the sealing cover and the motor shaft can be improved, and the phenomenon of water seepage to the inner side in the rotating process of the motor shaft is prevented; and the waterproof effect is improved.

The invention discloses a block type guide bearing clearance measuring device, system and method, and belongs to the technical field of hydro-generator measurement, and the block type guide bearing clearance measuring device comprises a guide bearing bush and a gas electricity meter; a through air hole is formed in the guide bearing bush; the outlet ends of the air holes extend to one side surface, facing the shaft collar, of the guide bearing bush, and the inlet ends extend to the other side surface of the guide bearing bush; a channel of the gas electricity meter is connected with the inlet end of the gas hole through a gas pipe, gas is conveyed into the gas hole, and the value of the gap between the guide bearing bush and the shaft collar is calculated through the measured gas flow or gas pressure. According to the block type guide bearing gap measuring device, system and method, non-contact measurement is carried out on the gap between the guide bearing bush and the collar in a guide bearing structure, spindle displacement caused by pushing of the guide bearing bush during conventional measurement is avoided, multi-channel synchronous measurement and automatic data acquisition and analysis are supported, and the block type guide bearing gap measuring device, system and method are high in precision, high in efficiency and high in interference resistance.

The application provides a needle-type spherical collar automatic press-fitting mechanism, which can be compatible with press-fitting of needle-type spherical collars with different outer diameters by adjusting the position of a detection block and changing a quick-change head, so as to prevent incorrect assembly, the three-pin body shaft assembly is heavy, and the robot carrying reduces the working strength of workers, improves the stability of operation, realizes full-automatic assembly, guarantees the stability and consistency of products, and improves the assembly efficiency.

An electric drive system for an electrified vehicle includes a driveline, a first axial flux motor, a second axial flux motor, a third axial flux motor, a differential, and an electric motor disconnect system. The first axial flux motor has a first primary output shaft. The second axial flux motor has a second primary output shaft. The third axial flux motor is positioned between the first and second axial flux motors. The third axial flux motor has a first output shaft that provides a first torque input to the first motor and a second output shaft that provides a second torque input to the second motor. The differential is disposed in the third axial flux motor. The differential provides selective speed differentiation between the first and second output shafts. The electric motor disconnect system includes a controller, an actuator, a first collar and a second collar.

A disc brake has a brake caliper in which two brake pads are arranged so that they can be pressed against a brake disc in operation, one of which on the clamping side is actuatable via at least one axially adjustable adjusting spindle carrying a pressure piece by way of a clamping device and the adjusting spindle being guided through an opening of a closure cover closing a receiving chamber of the brake caliper, thereby forming an annular gap. A sealing arrangement is provided for sealing the receiving chamber in the region of the opening, which sealing arrangement bears, on the one hand, against the pressure piece and, on the other hand, is held at the inner side of a collar that circumferentially delimits the opening and extends axially, the sealing arrangement has a bellows and a concentrically arranged secondary seal, and the secondary seal and the bellows are formed integrally, in such a manner that the secondary seal, which has a central opening and is more dimensionally stable than the bellows, has a circumferential wall which is fastened by frictional engagement or by a material bond to the inside of the collar, the bottom angled relative to the wall of the secondary seal bearing with its edge delimiting the central opening, formed as a bead, against the adjusting spindle, and the bellows being connected, with its end formed as a thickened portion opposite the circumferential wall of the secondary seal, to the pressure piece by positive engagement, material bonding, or frictional engagement.

The present application relates to the technical fields of swash plate type hydraulic piston pump, and discloses a straight-shaft swash plate type hydraulic piston pump core structure, which comprises a transmission shaft, a controller, a cylinder body fixedly arranged at one end of the transmission shaft, and piston holes uniformly arranged in the cylinder body, a piston movably arranged in the piston hole, and a sliding shoe arranged at one end of the piston, further comprising a deviation rectifying device arranged at one side of the cylinder body and comprising a shaft ring movably sleeved on the piston and an electric push rod fixedly arranged on the cylinder body. Through the arrangement of the deviation rectifying device, the eccentric force of the piston can be offset by the deviation rectifying device when the piston moves in the piston hole, and the electric push rod is used to pull the shaft ring to reduce the eccentric force and the abrasion between the piston hole and the piston when the piston rotates to the highest point of the wear plate, i.e. the end point of the sliding of the piston in the piston hole.

The utility model provides a wire coil capable of being quickly disassembled, which comprises a first wire blocking coil, a second wire blocking coil, a first winding shaft ring, a first supporting shaft ring, a second winding shaft ring, a second supporting shaft ring, a first supporting shaft ring and a second supporting shaft ring, wherein the first winding shaft ring and the first supporting shaft ring are fixedly connected with the first wire blocking coil, the second winding shaft ring and the second supporting shaft ring are fixedly connected with the second wire blocking coil, and the first supporting shaft ring and the second supporting shaft ring are fixed on the inner wall of the first wire blocking coil. The connecting ring is fixed to the connecting ring in an annular array mode, the clamping blocks are fixed to the connecting plates respectively, and the clamping grooves are formed in the second wire blocking disc in an annular array mode and correspond to the clamping blocks. According to the wire coil capable of being rapidly disassembled, through the split type structural design, through cooperation of the connecting plates, the clamping blocks and the clamping grooves, disassembly and assembly of the wire coil can be conveniently and rapidly completed, under cooperation of the locking pieces, the stability of the wire coil after assembly is effectively improved, the situation that the wire coil is disassembled due to collision is avoided, and the stability of consumables on the wire coil during use is guaranteed.

The utility model discloses a fan assembly and a duct type air conditioner, and belongs to the technical field of air conditioners. The fan assembly comprises a motor, a fan, a fixing piece and a fastening piece. The fan comprises a shaft ring, the shaft ring extends in the axial direction of the fan, and a penetrating part is arranged on the shaft ring and used for allowing a driving shaft connected with the motor to penetrate through. The avoiding part is arranged on the side wall of the shaft ring; the fixing piece is connected to the shaft ring, and the fixing piece comprises an end plate which is arranged on the driving shaft in a sleeving mode; the platform part is connected with the end plate, and the platform part corresponds to the avoiding part and is inserted into the shaft ring so as to limit the fixing piece to rotate relative to the shaft ring; and the fastening piece is connected to the platform part in a threaded mode, and the end of the fastening piece abuts against the driving shaft. The duct type air conditioner comprises the fan assembly. According to the fan assembly and the duct type air conditioner, the connection between the shaft and the fan is simplified, and the cost is reduced.

The invention provides a cutting device for machining a metal plate for ship manufacturing and machining, and relates to the technical field of metal plate cutting, the cutting device comprises a plate bearing disc and a tight supporting column, a plurality of strip-shaped sliding grooves are formed in the plate bearing disc in a penetrating mode, and guide shafts are fixedly connected into the strip-shaped sliding grooves; a sliding piece is integrally formed at the bottom end of the tight supporting column and is in sliding fit with the strip-shaped sliding groove and the guide shaft. The guide shaft is sleeved with a shaft ring in a sliding mode in a spring pushing mode, a horizontal stop lever is installed at the top end of the tight supporting column in a penetrating and sliding mode, a T-shaped sliding block sliding in the vertical direction is installed on the tight supporting column, and an upward-inclining connecting rod and a downward-inclining connecting rod are rotationally connected between the T-shaped sliding block and the shaft ring and between the T-shaped sliding block and the T-shaped sliding block respectively. According to the plate roll loading device, the trouble that force exerting execution needs to be additionally and manually carried out on telescopic folding and unfolding operation of the horizontal stop lever before and after plate roll loading can be omitted, operation is convenient, fast and time-saving, and the plate roll loading efficiency can be indirectly improved.

The utility model provides air conditioner fan low noise deep groove ball bearing relates to bearing technical field, include: outer shaft ring and sealed noise reduction structure, the inside of outer shaft ring is equipped with inner shaft, is equipped with ball between inner shaft and outer shaft ring, the outside of outer shaft ring and inner shaft is equipped with sealed noise reduction structure, sealed noise reduction structure contains following subassembly: sound absorbing ring: pastes in the outside of outer shaft ring, and the both ends of sound absorbing ring are equipped with thread ring groove, through setting sealed noise reduction structure, through pasting sound absorbing material in the outside of bearing, can high -efficiently absorb the mechanical vibration and noise energy of bearing operation, reduce the noise propagation intensity, effectively improve the noise problem of air conditioner fan operation, set up the sealing ring between outer shaft and inner shaft can effectively block the invasion of outside dust, fiber and other impurities, avoid dust impurity aggravating the abrasion of ball and raceway, eliminate the noise hidden danger caused by ball movement instability, thereby all -round promotion bearing's noise reduction performance and operation stability.

1. The name of the design product: split bucket ear. 2. The use of the design product: excavator shaking arm and excavator bucket connecting shaft collar. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: assembly 2 perspective view.

The invention discloses a water guide bearing support ring dismounting guiding and positioning device and method, the device comprises a fixing device fixed on a bearing support ring through an adjusting support block and a bolt, and the top of the fixing device is provided with a leveling instrument for monitoring the radial levelness; the tail end of the sliding device is connected with a rolling wheel, and the rolling wheel is in contact guide with the shaft collar; the sliding position is locked by an ingot locking device penetrating through the sliding device; the main ruler and the auxiliary ruler on the fixing device and the sliding device form a vernier caliper structure. The method comprises the following steps: uniformly distributing more than three devices during positioning before disassembly, sliding the rolling wheel to fit a collar after leveling, and recording readings; reading is checked during reinstallation, and automatic deviation correction is achieved through cooperation of guiding of the rolling wheel and the seam allowance. The problems of low positioning precision, low efficiency and high labor intensity of traditional disassembly and assembly are solved, high-precision disassembly and assembly with uniform circumferential stress and radial eccentricity smaller than or equal to 0.02 mm of the supporting ring are achieved through accurate measurement and guiding, the operation efficiency is improved, and stable operation of equipment is guaranteed.

The utility model relates to the technical field of wind turbine generators, in particular to a wind turbine generator yaw layer oil stain collecting mechanism which comprises a tower drum, a flange is welded to the top end of the tower drum in a sleeved mode, a yaw bearing is installed on the top of the flange, a bottom plate is installed on the top of the yaw bearing, and the yaw bearing is divided into an outer shaft ring and an inner shaft ring. A plurality of first bolts are inserted between the outer shaft ring and the flange in a circular array mode, a plurality of second bolts are inserted between the bottom plate and the inner shaft ring in a circular array mode, teeth are arranged on the outer wall of the outer shaft ring, and driving mechanisms connected with the teeth on the outer wall of the outer shaft ring in a meshed mode are installed at the four corners of the top of the bottom plate. Grease at the outer shaft ring and the gear can be collected through the oil receiving ring and the oil receiving disc respectively, the grease collected by the oil receiving disc can flow into the oil receiving ring, and the oil scraping assembly is driven to push the grease collected in the oil receiving ring along with yawing rotation of the bottom plate, so that the grease smoothly enters a collecting pipe, and the oil collecting efficiency is improved. Therefore, the oil dirt on the yaw layer is collected.

The utility model discloses a high-performance hand strap guide wheel made of PBT (polybutylene terephthalate) material, which comprises a tire bead, a deep groove ball bearing is mounted in the tire bead, a mounting groove is formed in an inner ring of the tire bead, a collar is mounted on the outer side of the deep groove ball bearing, a first ball is rotatably connected between the deep groove ball bearing and the collar, and a second ball is rotatably connected between the deep groove ball bearing and the collar. The first balls are arranged in the deep groove ball bearing and the shaft ring in an attached mode, anti-skid grooves are formed in the outer side of the tire bead, the anti-skid grooves are arranged in an array mode relative to the vertical central axis of the tire bead, the shaft ring and the installation groove are arranged in an attached mode, and the diameter of the installation groove is consistent with that of the shaft ring. According to the high-performance hand strap guide wheel prepared from the PBT material, the whole has good wear resistance and performance through separate connection and independent rotation, meanwhile, the friction force between the high-performance hand strap guide wheel and a hand strap is increased, connection is firmer, sliding is prevented, and therefore better stability is provided.

The invention relates to a drill chuck (1) comprising a chuck body (2) which is provided at its rear end with a spindle receptacle (3) and at its axially forward end with a tool receptacle (4) into which a chuck jaw (6) which is movably guided in a guide channel (5) of the chuck body (2) projects. An annular collar (11) having a non-circular first outer circumference (12) projects axially rearward from the axially rearward end of the chuck body (2). A drive sleeve (13) which is mountable on the annular collar (11) is provided, which drive sleeve has a first inner circumference (15) which is adapted to the first outer circumference (12) for torque transmission. The axial extension of the drive sleeve (13) is greater than the axial extension of the annular collar (11). The invention also relates to a drilling machine.

A collet includes a brake member (54) and a collar (50). A brake member (54) is movable to secure the drive shaft. The collar (50) is axially movable to a shaft disengaged position and a shaft engaged position. A collar spring (55) may apply a collar spring bias on the collar (50). A release spring assembly (60) may apply a release bias on the drive shaft. The brake member (54) may be at least partially disposed within the collar recess when the collar (50) is in the shaft disengaged position, and both the collar (50) and the release spring assembly (60) may exert a biasing force on the brake member (54). When the collar (50) is in the shaft engaged position, the brake member (54) is moved out of the collar recess and onto the engagement surface of the collar (50) to inhibit radial movement of the brake member (54). The chuck may reduce the time required to detach and mount the chuck from and from the rotary power tool.

A kind of Stewart structure six-dimensional force sensor and its assembling method, it is related to a six-dimensional force sensor and assembling method.Six measurement struts are hinged and installed between bottom plate and top plate based on Stewart parallel structure, measurement strut is connected by connecting base at both ends, connecting base is provided with bearing seat and is internally equipped with thrust aligning roller bearing, measurement strut is coaxially fixed sensor pre-tightening assembly between upper end installation flange and lower end installation flange, one-way piezoelectric sensor is pre-tightening installed in the middle position of sensor pre-tightening assembly, upper end installation flange and lower end installation flange outside end are respectively coaxially extended step shaft and corresponding thrust aligning roller bearing interference fit, step shaft is sleeved with collar and then is fastened by locking nut.Each component has strong detection capability, is easy to install, has strong bearing capacity, one-way piezoelectric sensor range is adjustable, and the installation precision of measurement strut and sensor measurement precision can be improved in assembly stage.

The utility model discloses an oil-containing wear-resistant bearing with stepped oil groove distribution, and particularly relates to the technical field of bearings, the oil-containing wear-resistant bearing comprises a small collar, one end of the small collar is provided with a stepped end lubricating assembly, the stepped end lubricating assembly comprises a middle collar and one end fixedly mounted on the small collar, one end of the middle collar is fixedly connected with a small end ring, and the other end of the middle collar is fixedly connected with the small end ring. The outer wall of the small end ring is fixedly connected with a middle shaft ring; and the large end ring is fixedly connected to one end part of the middle shaft ring. The stepped shaft end lubricating assembly is adopted, a stepped shaft can be inserted into the large shaft ring, a large amount of oil is stored in a plurality of hole bodies in the small end ring, the stored oil flows out through a plurality of oil holes in the large end ring, the small end ring and the large end ring can fully lubricate the two ends of the stepped shaft, and the service life of the stepped shaft is prolonged. And meanwhile, multi-point-position distributed uniform lubrication can be achieved, double distributed lubrication is achieved at the ends of the steps, and the lubrication effect is better.

The utility model discloses a fan assembly and a duct type air conditioner, and belongs to the technical field of air conditioners. The fan assembly comprises a motor, a fan, a fixing piece and a fastening piece. The fan comprises a shaft ring which extends in the axial direction, and the shaft ring is provided with a penetrating part for a driving shaft connected with the motor to penetrate through; the avoiding part is arranged on the side wall of the shaft ring, and the avoiding part communicates with the penetrating part; the fixing piece is clamped on the side wall of the shaft ring; and the fastening piece is in threaded connection with the fixing piece and penetrates through the avoiding part, and the end of the fastening piece abuts against the driving shaft so as to abut against the driving shaft. The duct type air conditioner comprises the fan assembly. According to the fan assembly and the duct type air conditioner, the connection between the shaft and the fan is simplified, and the cost is reduced.

The utility model discloses a fan assembly and a duct type air conditioner, and belongs to the technical field of air conditioners. The fan assembly comprises a motor connected with a driving shaft, the driving shaft is provided with an anti-rotation shaft section, and the anti-rotation shaft section is provided with an anti-rotation plane; the centrifugal fan is connected to the driving shaft, a shaft ring is arranged in the middle of the centrifugal fan, and the shaft ring is arranged at the anti-rotation shaft section in a penetrating mode; the first limiting structure and the second limiting structure are arranged on the driving shaft, located on the two sides of the shaft ring correspondingly and used for preventing the centrifugal fan from moving in the axial direction. The duct type air conditioner comprises the fan assembly. According to the fan assembly and the duct type air conditioner, the connection between the shaft and the centrifugal fan is simplified, and the cost is reduced.