77 results about "Shaft collar" patented technology

The utility model discloses a crankshaft timing measuring tool which comprises a rack, a gear seat, a support, a fixed ejector pin, a movable ejector pin and a spring. A gear seat, a support, a fixed ejector pin and a movable ejector pin are installed on the machine frame, a shaft ring I is arranged on the movable ejector pin, a spring is sleeved on the movable ejector pin, one end of the spring is contacted with the machine frame, and the other end of the spring is contacted with the end face of the shaft ring I. The gear seat is arranged between the fixed ejector pin and the movable ejector pin, and a gear shaft is supported on the gear seat through a bearing. The gear shaft is perpendicular to the fixed ejector pin, a driving gear meshed with a gear of the crankshaft is arranged on the shaft ring I, and a hand wheel is fixedly installed at the end of the gear shaft. The support is installed on the outer side of the gear seat, a rod aligning hole is formed in the support, a gear aligning rod is arranged in the rod aligning hole and is in clearance fit with the rod aligning hole, and a second gear capable of being meshed with the gear on the crank is arranged at the lower end of the gear aligning rod. The device is simple in structure and low in cost; the operation is simple, and the measurement is accurate.

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 invention provides automatic shaft collar correction equipment and method, and relates to the technical field of machining, the automatic shaft collar correction equipment comprises a supporting and correcting station and a conveying station, the supporting and correcting station is provided with a workpiece base and a supporting and correcting device used for achieving radial supporting and tightening of an annular piece, and the supporting and correcting device comprises a plurality of supporting blocks capable of being opened or closed, a screw matched with the supporting blocks and a driving mechanism; the conveying station is provided with a clamping assembly, the clamping assembly comprises a lifting table, a guide plate sliding transversely, a gear motor and a clamp used for clamping the annular parts, and automatic conveying and positioning of the annular parts are achieved. The supporting and correcting device comprises a shell, a guide sleeve, a guide piece, a linkage mechanism composed of a moving block and a transmission rod, a screw rod rotates to drive a supporting block to expand or contract in the radial direction, and automatic correction of the annular piece is completed. The device is reasonable in structure, efficient in operation and suitable for automatic positioning and correction machining of shaft ring type workpieces, and the automation level and the correction precision can be remarkably improved.

A shaft grounding system for rotating electrical machinery includes a collar attachable to the shaft and presenting a circumferential contact surface of a first metal. A stator securable to the machine housing carries at least one resiliently biased contact element of a second metal that wipes against the contact surface to conduct unwanted charge from the shaft to ground. In preferred embodiments the metals are dissimilar and at least one is a noble metal. The system may incorporate multiple contact surfaces, modular contact elements and an on-board monitoring subsystem that provides local and remote diagnostics.

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 invention discloses a novel angle grinder with a quick accessory replacement function, and relates to the technical field of angle grinders. A novel angle grinder with a quick accessory replacement function comprises a body, the body comprises a motor bin, an accessory mechanism is installed on the motor bin, and a main shaft mechanism is arranged between the accessory mechanism and the body; the accessory mechanism comprises an accessory, a connecting ring assembly is embedded in a center hole of the accessory, the connecting ring assembly comprises a connecting ring, an inserting block is fixedly connected into the connecting ring, and inclined grooves are formed in the two sides of the inserting block. The main shaft mechanism comprises a main shaft; the main shaft mechanism is provided with a shaft ring mechanism matched with the connecting ring assembly in a matched mode, the shaft ring mechanism comprises a shaft ring fixedly connected with the main shaft in a sleeving mode, protruding blocks matched with the inserting blocks in an embedded mode are evenly and fixedly connected to the outer side of the shaft ring at equal intervals, and the two sides of each protruding block are each provided with a communicated side groove. During compression assembly, the assembly efficiency is improved.

The utility model discloses a batten mechanical manual expansion shaft, and relates to the technical field of manual expansion shafts, an expansion shell is provided with uniformly distributed circumferentially arranged sliding chutes, the right end of the expansion shell is provided with a rotating flange, the rotating flange is internally and rotatably connected with a bearing, the left end of the expansion shell is rotatably connected with a driving shaft ring, and the driving shaft ring is rotatably connected with the expansion shell. A driving shaft device is rotationally connected to the bearing and the driving shaft collar and comprises a driving shaft, the right end of the driving shaft is sleeved with a reset spring, a driving thread is arranged at the left end of the driving shaft, a sliding long shaft sleeve device is slidably connected to the driving shaft, and a movable block device is arranged on the sliding long shaft sleeve device; the movable block device is slidably connected with an expansion block device, the expansion block device is slidably connected with the sliding groove, the expansion block device is connected with a positioning plate device, the device does not need to be driven by air pressure and can be manually driven or mechanically driven by a motor, the applicability of the device is greatly improved, in addition, the positioning plate device capable of being flexibly changed is arranged, and the positioning plate device can be flexibly changed. And the applicability of the device is further 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.

The present invention discloses an electrode rod for a PECVD reaction chamber, comprising a wiring rod, a connecting rod, an inner insulating seat, an outer insulating seat, a locking cylinder, a pressing assembly, and an electrode flange. The inner insulating seat and the outer insulating seat are sleeved on the connecting rod, and the outer locking cylinder is sleeved on the wiring rod and the outer insulating seat. The locking cylinder abuts against the outer side of a collar, and the other end of the locking cylinder is pressed against the outer insulating seat by the pressing assembly. One end of the connecting rod is provided with a first limiting groove connected to a threaded hole, and a limiting plate is provided in the first limiting groove. One end of the wiring rod is provided with a second limiting groove. When one end of the wiring rod is threadedly connected to the threaded hole of the connecting rod, the limiting plate is clamped in the first and second limiting grooves to limit axial movement between the wiring rod and the connecting rod. The locking cylinder has a square hole in the middle, and the wiring rod is provided with a square shaft shoulder on one side of the collar. The shaft shoulder is inserted into the square hole of the locking cylinder. The present invention has the advantages of simple structure, easy modification, and reliable connection.

The utility model relates to the field of bearing devices, in particular to a bearing device for a metal processing lathe, which comprises a main shaft, angular contact shaft rings, bearing rings, hold-down rings, adjusting rings, bearing seats and shaft beads, the angular contact shaft rings are mounted at the front end and the rear end of the main shaft, the hold-down bearing rings are mounted on the outer ring sides of the angular contact shaft rings, and the hold-down rings are mounted on the inner ring sides of the bearing rings. The shaft bead is installed between the angular contact shaft ring and the bearing ring, the adjusting ring is installed at the rear end of the inner ring side of the angular contact shaft ring, the bearing seat is installed on the outer ring side of the adjusting ring, the angular contact shaft ring and the bearing ring can bear a large amount of axial and radial loads, and the shaft bead arranged between the angular contact shaft ring and the bearing ring has high rigidity and abrasion resistance. And under the high-load condition, the stable performance can still be kept, high-speed rotation and impact loads can be borne, and the operation stability of a mechanical system is guaranteed.

The utility model relates to an extra-large shaft ring product grabbing machine head which comprises a machine base, the machine base is provided with a guide rail in the length direction and slidably connected with a sliding block through the guide rail, and a servo mechanism is arranged on the machine base and used for driving the sliding block to slide along the guide rail; the first end face magnetic attraction mechanism is located at one end of the base, the second end face magnetic attraction mechanism comprises two magnetic attraction units which are symmetrically arranged along the two sides of the guide rail, the machine base is provided with a connecting frame corresponding to the magnetic attraction units, and the magnetic attraction units are hinged to the connecting frame; the second end face magnetic attraction mechanism is connected with the sliding block, the sliding block is used for driving the second end face magnetic attraction mechanism to move in the length direction of the guide rail, the position of the second end face magnetic attraction mechanism is adjusted in a large range through the guide rail sliding block, and therefore the clamping requirement of an extra-large shaft ring is met; and meanwhile, the magnetic attraction units are hinged to the connecting frame, so that the magnetic attraction units correspond to the shaft rings, and the accurate grabbing position is guaranteed.

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 belongs to the technical field of drilling engineering, and discloses a plunger type drill string eccentric device capable of simulating the dynamic process of a drill string from the center of a shaft to complete wall attachment and a control method of the plunger type drill string eccentric device. The device comprises a transparent wellbore assembly comprising a plurality of transparent wellbores connected through wellbore section hoops; the drill column assembly is located in the transparent shaft assembly and comprises a plurality of drill columns which are in threaded connection; the lifting eccentric structure comprises an eccentric shaft ring, the drill column assembly can rotate in the eccentric shaft ring, one end of the plunger rod is connected with the eccentric shaft ring, the other end of the plunger rod penetrates out of the shaft section hoop in a sealed mode and is connected with a lead screw motor through a universal coupling, and the lead screw motor drives the plunger rod to vertically ascend and descend through the universal coupling. The eccentric shaft ring drives the drill column assembly to be eccentrically adjusted in the transparent shaft assembly; the limiting sensing assembly comprises a limiting sensor fixed on the fixed base and a sensing sheet mounted at the top end of a screw rod of the screw rod motor, and is used for positioning an eccentric original point; and the sensor module is arranged on the shaft section hoop.

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.

A molybdenum powder constant-speed feeding mechanism particularly relates to the technical field of molybdenum powder feeding and mainly comprises a feeding pipe, a conveying auger is rotatably connected to the inner wall of the feeding pipe, a supporting block is fixedly connected to the top end of the outer wall of the feeding pipe, and a displacement feeding mechanism is mounted at the top end of the supporting block; the displacement feeding mechanism comprises a shaft ring fixedly installed at the top end of the supporting block, the inner wall of the shaft ring is rotationally connected with a rotating rod, and a rotating block is welded to the top end of the rotating rod. A gear motor is fixedly connected to the top end of the rotating block and used for driving the rotating block to rotate. According to the variable-position feeding mechanism, the gear motor drives the rotating block to rotate, the rotating rod rotates in the shaft ring, the feeding pipe supports the supporting block, the rotating block drives the rotating frame to rotate, the rotating frame carries the guide hopper to rotate, the guide hopper can rotate to different angle positions to achieve constant-speed feeding, and the application range of constant-speed feeding is wider.

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.

Electric coolant pump (1) of the wet-running type, comprising a pump housing (2) and an electric motor accommodated therein and surrounded by the coolant, having a stator (3) and a rotor (4), as well as a bearing unit (7) with a pump shaft (8) with a shaft collar (14) and a bearing housing (9) fastened in the pump housing (2) with housing shoulders (18, 19), against which the shaft collar (14) is axially hydrodynamically supported on both sides by means of the coolant, wherein: - the pump shaft (8) is mounted radially in two bores (16, 17) of the bearing housing (9) running on both sides of the shaft collar (14), - the bearing housing (9) comprises a bearing sleeve (10) and two rings (11, 12) forming the bores (16, 17), each of which is secured in the bearing sleeve (10) by means of a press fit, - the bearing unit (7) is axially permeable for the coolant through which the radial and axial plain bearing lubrication takes place, - the housing shoulders (18, 19) each have a plurality of radially extending grooves (22) and the same plurality of axially raised annular segments (23) which alternate circumferentially with the grooves (22), and the axial elevation of the annular segments (23) is oriented according to the direction of rotation of the pump shaft (8).

The present invention relates to a rotary faucet, comprising a faucet body, a switch handle, a water pipe and a water outlet pipe, and also comprising a connecting member, wherein the connecting member is provided with a channel connected to the faucet body and the water outlet pipe, the connecting member comprising a first connecting seat and a second connecting seat, a collar being provided at the connection between the first connecting seat and the second connecting seat, a ball bearing being provided on one side of the collar, the first connecting seat comprising a first sealing portion and a first threaded portion, the outer diameter of the first sealing portion being larger than the outer diameter of the first threaded portion, a first mounting groove being provided on one side of the first sealing portion corresponding to the first threaded portion, a first sealing ring being provided in the first mounting groove, the thickness of the first sealing ring being adapted to the depth of the first mounting groove. The technical solution of the present invention has the technical effect of being able to adjust the water outlet direction according to user needs, being easy to use and having good sealing performance.

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.