2209results about "Bearing unit rigid support" patented technology

The invention relates to a repeatedly detachable magnetic composite water lubricated bearing and a maintenance method thereof.The water lubricated bearing comprises a cylindrical bearing seat surrounding a ship stern shaft and a permanent magnet assembly detachably connected with the bearing seat, a cylindrical sliding bearing is arranged on the inner side of the bearing seat, a notch is formed in the outer side face of the sliding bearing, and the permanent magnet assembly is detachably connected with the bearing seat; the notch penetrates through the sliding bearing in the axis direction of the sliding bearing, a containing groove used for containing the permanent magnet assembly is defined between the notch and the inner side wall of the bearing seat, when the water lubrication bearing is arranged on the outer side of the ship tail shaft in a sleeving mode, the containing groove is located over the ship tail shaft, and the permanent magnet assembly is in sliding fit with the containing groove in the axis direction of the sliding bearing. According to the scheme, the permanent magnet is configured to be in a detachable form, and the permanent magnet can be conveniently maintained after being demagnetized, so that the maintenance cost of the water-lubricated bearing is reduced, and the load of the water-lubricated bearing can be reduced for a long time.

A bearing assembly includes an annular carrier, an outer ring disposed within the carrier, the outer ring having an outer raceway and a transmitter coil spaced axially from the outer raceway. The transmitter coil is electrically connectable with a battery and is configured to generate an electromagnetic field when current flows through the transmitter coil. An inner ring is disposable about a rotor shaft and has an inner raceway and a receiver coil spaced axially from the inner raceway so as to be located proximal to and inductively coupled with the transmitter coil such that electric current is generated within the receiver coil when current flows through the transmitter coil. The receiver coil is connected to electromagnetic coils of a motor rotor such that electric current flows from receiver coil to the coils. A plurality of rolling elements are disposed between rotatably couple the outer ring with the inner ring.

The invention belongs to the technical field of sliding bearings and protection thereof, and discloses a metal radial elastic sheath for a ceramic sliding bearing under a high-temperature working condition, and the sheath comprises an inner sheath and an outer sheath; the inner sheath sleeves the periphery of the ceramic bushing, is a thin-wall metal sleeve, and is provided with a plurality of spiral openings in the circumferential direction, so that the inner sheath generates elastic bending when being stressed in the radial direction and disperses stress in the annular range; the outer sheath is sleeved on the periphery of the inner sheath, helical teeth are uniformly distributed on the inner circumferential surface of the outer sheath, and the helical teeth apply centripetal acting force to the inner sheath through radial elastic deformation under assembly and high-temperature working conditions. Through flexible deformation of the spiral opening of the inner sheath and radial elastic pre-tightening fit of the helical teeth of the outer sheath, fastening fit can be maintained when a thermal expansion difference exists between the metal bearing seat and the ceramic bushing, stress concentration of the ceramic bushing is reduced, and the risk of axis drift is reduced.

The batten type water lubricated bearing comprises a shaft sleeve and a plurality of composite battens which are installed on the inner wall of the shaft sleeve at intervals in the circumferential direction of the shaft sleeve, and the composite battens comprise the first battens installed in a bearing area of the bearing and the second battens installed in a non-bearing area of the bearing. A through type variable cross-section groove is formed in the side, away from the ship stern shaft, of the first batten in the length direction of the first batten, and the cross-section area of the variable cross-section groove is gradually increased from the bow to the stern. The invention further discloses an assembly method of the batten type water lubricated bearing. The first batten is arranged in the bearing carrying area and provided with the variable cross-section groove, so that the rigidity of the first batten is gradually reduced in the direction from the bow to the stern, axial gradient rigidity distribution is formed, the low-rigidity area at the stern end can adapt to deformation of the stern shaft to be adjusted in a self-adaptive mode, local stress concentration is reduced, and the stability of the stern end is improved. And a high-rigidity area at the bow end maintains necessary bearing strength, so that the axial load of the bearing is homogenized as a whole.

The invention discloses a non-contact mechanical sealing device for a rolling bearing, and relates to the technical field of non-contact sealing, the non-contact mechanical sealing device comprises a sealing end shell, a mounting flange, a connecting end shell and a rotating shaft, the sealing end shell is internally provided with a sealing mechanism for realizing sealing of a connecting structure of the sealing end shell and the rotating shaft; a lubricating mechanism for promoting liquid in the sealing end shell to flow back and forth is arranged on the side face of the sealing mechanism. An outer liquid sealing mechanism used for supplementing lubricating oil in the sealing end shell in real time is installed on the front side of the sealing end shell, and a liquid conveying port is formed in the outer surface of the outer liquid sealing mechanism. The sealing mechanism comprises an inner sealing ring, an annular sealing structure is additionally arranged at the joint of the side face of the sealing end shell and the rotating shaft through the side sealing ring groove and the side wedge ring, a multi-stage sealing defense line is formed by the annular sealing structure and a main sealing interface, and the overall sealing reliability between the inner wall of the sealing end shell and the rotating shaft in the axial direction and the radial direction is further improved.

Disclosed is a support frame of a CT imaging system, including: a connection flat plate portion; a support body portion disposed on the connection flat plate portion; an X-ray source installation reference portion disposed on the connection flat plate portion; an electrical installation portion; a cooling component installation portion; and a through hole, wherein the through hole is surrounded by the support body portion, the X-ray source installation reference portion, the electrical installation portion and the cooling component installation portion, and the through hole penetrates the connection flat plate portion. The connection flat plate portion, the support body portion, the X-ray source installation reference portion, the electrical installation portion and the cooling component installation portion are integrally formed.

A solar tracker support frame assembly includes a multi-leg solar tracker support frame and a hanging bearing housing assembly. The multi-leg solar tracker support frame includes first and second frame legs and a bridge extending between the first and second frame legs. The hanging bearing housing assembly is at the multi-leg solar tracker support frame and is configured to support a torque tube. The hanging bearing housing assembly includes a bearing sleeve and a torque tube connector. The bearing sleeve includes a first bearing sleeve portion and a hanging bearing sleeve portion. The first bearing sleeve portion interfaces with the bridge, and the hanging bearing sleeve portion extends out from the first bearing sleeve portion below the bridge. The torque tube connector is configured to couple the torque tube to the hanging bearing housing assembly at least at the hanging bearing sleeve portion below the bridge.

To provide a bearing device and a spindle device that can accurately measure a machining load and a preload on each bearing.SOLUTION: A bearing device 50 comprises a first outer ring spacer 6g arranged between an outer ring 5ga of a bearing 5a and an outer ring 5gb of a bearing 5b, a housing 3 for fixing the outer ring 5ga of the bearing 5a and the outer ring 5gb of the bearing 5b, a second outer ring spacer 7 arranged between the outer ring 5gb of the bearing 5b and the housing 3, a first strain sensor 11, and a second strain sensor 8. The first strain sensor 11 is fixed to the first outer ring spacer 6g, which is located on a path through which a preload is transmitted to the bearing 5a and the bearing 5b. The second strain sensor 8 is fixed to the second outer ring spacer 7, which is not located on the path through which the preload is transmitted to the bearing 5a and the bearing 5b.SELECTED DRAWING: Figure 2

The invention discloses a high-bearing-capacity self-lubricating sliding bearing and an assembling method thereof. The high-bearing-capacity self-lubricating sliding bearing comprises a bearing seat, a bearing cover and a bearing bush sleeve, wherein the bearing seat and the bearing cover are connected through a bolt; the bearing bush sleeve is tightly attached to the inner wall of the bearing seat and the inner wall of the bearing cover and is composed of two bearing bushes which are vertically spliced; the lining is connected to the inner wall of the bearing bush in a sliding mode and used for being in interference fit with an external rotating shaft and enabling the external rotating shaft to stably slide on the inner wall of the bearing bush, an oil slinger is connected to the middle of the outer wall of the lining in a sleeving mode, and oil slingers are symmetrically connected to the positions, close to the end face, of the outer wall of the lining in a sleeving mode, so that matched composite self-lubrication of the oil slinger and the oil slingers is achieved. And the lubricating unit is mounted on one side of the bearing seat and provides lubricating oil for the contact surface of the bearing bush and the bushing. The composite structure of the oil slinger and the oil slinger is used, so that internal lubricating oil can uniformly flow between the bushing and the bearing bush, and the service life of the whole sliding bearing is prolonged.

A bearing system for a compressor including an unloader at least partially received within a recess of a driveshaft. The unloader includes an outer surface that is engaged with a bearing. An inner surface of the unloader is curved such that the unloader is pivotable relative to the driveshaft unload forces on bearing caused by deflection of the driveshaft.

A bearing system may include a bearing. A bearing system may include an elastomer ring surrounding the bearing, the elastomer ring contacting the bearing with a ring inner surface, the elastomer ring maintaining a position of the bearing. A bearing system may include a biasing element positioned to apply a biasing force to the elastomer ring, the elastomer ring transferring at least a portion of the biasing force to a radial force on the bearing.

The application provides a novel high-temperature-resistant small-hole tilting-pad bearing which is mainly composed of a bearing shell and a metal wire mesh structure, adopts a tilting-pad structure with S spring flexibility, is provided with micro grooves on each pad, and is provided with small holes on the micro grooves as working surfaces for supplying gas to form a gas film. The left and right two parts of the bearing shell are integrally machined by using electric spark technology and are connected and fixed by using cylindrical pins. Since the throttler, the flow channel and the shell are integrally machined, the bearing has the characteristics of high-temperature resistance. The metal wire mesh structure is embedded in the gap between the bearing body and the pad, the metal wire mesh structure provides flexible support for the pad, and can keep the performance stable at high and low temperatures. Therefore, the bearing structure provided by the application can provide higher damping characteristics for the bearing and has the characteristics of high-temperature resistance.

The invention discloses an automatic bearing clearance pre-tightening device for a high-speed rotating shaft, and belongs to the technical field of bearings, the automatic bearing clearance pre-tightening device comprises a base, a first bearing seat is fixedly mounted at the top of the base, a rotating shaft is arranged in the first bearing seat, and the rotating shaft is rotatably mounted in the first bearing seat through a shaft shoulder; a second bearing seat is arranged on one side of the first bearing seat in a contact mode, and the second bearing seat is installed at the top of the base in a sliding mode; the automatic compensation device further comprises an automatic compensation assembly, the automatic compensation assembly comprises a groove formed in the side, away from the shaft shoulder, of an inner cavity of the second bearing seat, and an end cover is installed in an inner cavity of the groove in a sliding mode; in the automatic pre-tightening process of the diagonal contact ball bearing, dynamic automatic compensation of the clearance can be correspondingly achieved through the belleville spring set according to the thermal expansion condition of the rotating shaft, it is guaranteed that the pre-tightening force is within a reasonable range, the pre-tightening force is prevented from being out of control, and the safety and reliability of system operation are improved.

The present invention provides a centrifugal separator (1) for separating at least one liquid phase from a liquid feed mixture. The separator is comprising a rotatable portion (10), a stationary portion (2) and a drive motor (4) arranged for rotating the rotatable portion (10) relative said stationary portion (2) around an axis of rotation (X). The rotatable portion (10) comprises a centrifuge bowl (10a) and a rotatable shaft (7) onto which said centrifuge bowl (10) is mounted. The centrifuge bowl (10a) comprises a separation space (9a), in which surface enlarging inserts (17) are arranged, an inlet (11) for supply of the liquid feed mixture, at least one liquid outlet (12, 13) for discharge of a separated liquid phase. At least one bearing (5, 6) is mounted to the rotatable portion (10) to facilitate its rotation, wherein said at least one bearing (5,6) is a grease-lubricated bearing.

A motor and a cleaner comprising the same. The motor comprises a stator including a stator core; a rotating shaft arrangeable inside the stator; a rotor rotatable about the rotating shaft by electromagnetically interacting with the stator while the rotating shaft is arranged inside the stator; a housing to accommodate the stator and the rotor; and a bearing coupleable to the housing such that while the bearing is coupled to the housing, the bearing allows the stator and the rotor to be stably coupled to each other. While the stator and the rotor are accommodated in the housing, a center of the stator core and a center of the rotor along an extension direction of the rotating shaft is arranged at different positions from each other with respect to the extension direction of the rotating shaft.

The invention discloses a hinge assembly, a mechanical joint and a robot. A plurality of structural members of the hinge assembly comprise a first structural member, a second structural member and a third structural member. The plurality of bearings of the hinge assembly includes a first bearing and a second bearing. In the axial direction, the bearing seat of the second structural part is located between the bearing seat of the first structural part and the third structural part, the first bearing ring is located between the first bearing and the second bearing, and the two end faces of the first bearing ring abut against the inner ring of the first bearing and the inner ring of the second bearing correspondingly. The second bearing ring is located between the second bearing and the third structural part, and the two end faces of the second bearing ring abut against the inner ring of the second bearing and the third structural part correspondingly. The hinge assembly further comprises a fastening assembly, and the fastening assembly fastens the inner ring of the first bearing, the first bearing ring, the inner ring of the second bearing, the second bearing ring and the third structural part together in the axial direction. Therefore, linkage of the third structural part, the inner ring of the first bearing and the inner ring of the second bearing can be achieved.

The utility model discloses a damping bearing seat assembly, including bearing body, bearing sleeve frame and bearing seat, bearing body is fixed in bearing sleeve frame, the bottom end of bearing sleeve frame is fixed connection with mounting plate, threaded rod passes through the through-hole on mounting plate and then is threaded connection with threaded groove, the bottom end of mounting plate is fixed connection with the flashboard, and the flashboard is fixed on the bearing sleeve frame. The two sides of the insertion plate are fixedly connected with external damping layers, and the insertion plate is inserted into an insertion groove in the bearing seat. According to the vibration reduction bearing seat assembly, when the bearing body operates and vibrates, the mounting plate is fixedly mounted in the butt joint groove to achieve the primary rigid vibration reduction effect, meanwhile, the bearing body and the bearing sleeve frame transmit vibration to the inserting plate, internal friction is generated between the external damping layer on the outer side of the inserting plate and the internal damping layer on the partition plate, and the vibration reduction effect is achieved. Vibration energy is converted into heat energy through internal friction between the external damping layer and the internal damping layer, and the vibration reduction effect is achieved.

A transmission includes a first shaft unit connected to a drive shaft of a drive unit. The first shaft unit includes a first shaft having a first shaft raceway surface on an outer peripheral surface thereof, a first output gear provided on the first shaft, a first outer ring attached to a first support part, the first outer ring having a first outer ring raceway surface on an inner peripheral surface thereof, and a plurality of first rolling elements disposed between the first shaft raceway surface and the first outer ring raceway surface.

A telescoping mechanism includes a handle including a motor and a controller operatively connected to the motor for controlling operation of the motor, a spindle operatively coupled to, and configured to be rotated by, the motor. The spindle is not journaled by the motor and instead is journaled by a bearing support distanced from the motor. Telescoping segments are coupled to the spindle. The telescoping segments are nested together in a contracted orientation and extend outwards upon rotation of the spindle.

The utility model discloses a device for supporting a rotor in a synchronous vibration mode of an air cushion wall and a hovering disc in an air cushion, and due to the synchronous vibration of the air cushion wall and the hovering disc, a gap between the hovering disc and the air cushion wall can be very small, so that the sealing effect is better, the air cushion wall can be ensured not to be contacted with the hovering disc, and the safety is not influenced. The independent axial bearing is arranged between the top of the hovering disc and the inner top wall of the air cushion wall, so that the heavier metal air cushion wall can be used, the metal air cushion wall has better machining precision, the machining precision is high, and the gap between the air cushion wall and the hovering disc can be reduced.

The utility model relates to a tilting-pad sliding bearing of a steam turbine. The tilting-pad sliding bearing comprises a pad body, a pad block and an oil retainer, the multiple tile blocks are evenly distributed on the inner ring of the tile body in the circumferential direction, and the oil retaining rings are arranged on the two axial sides of the tile body. Two adjacent tiles are provided with mounting spaces in the circumferential direction of the inner rings of the tile bodies, shaft lubricating assemblies used for supplying oil to the positions between the tiles and the rotor are arranged in the mounting spaces, oil spraying holes are formed in the shaft lubricating assemblies, and the oil spraying holes are formed towards inlets in the oil inlet sides of the tiles; a jacking shaft device is arranged on the tile block at the bottom of the tile body inner ring and used for supporting the rotor; and the jacking shaft device adopts a one-way valve to supply oil to a jacking shaft oil bag through a tile block side wall channel. The bearing provided by the utility model can enhance the cooling effect of the pads, the temperature of an oil film is easier to adjust and control, and collision and abrasion caused by sudden loss of jacking oil pressure in the starting process can be avoided.

The utility model belongs to the technical field of bearing supporting, and discloses a bearing seat and a bouncing sift.The bearing seat comprises a bearing seat body and a protective cover arranged on the bearing seat body, the protective cover is provided with a main body section and a shaft protection section located on the side portion of the main body section, and the main body section covers the bearing seat body from top to bottom; the shaft protection section covers the driving shaft and is located above the driving shaft, so that on one hand, the bearing seat body can be protected through the main body section, the situation that water drops drop to the outer portion of the bearing seat body, and consequently bolts rust is avoided, and the dismounting and repairing difficulty of the bearing seat body is lowered; and on the other hand, the situation that lubricating grease in the bearing is polluted due to the fact that water permeates into the bearing through the bearing seat can be avoided, the lubricating effect of the lubricating grease in the bearing on the bearing is guaranteed, and then the service life of the bearing is guaranteed.

The invention provides a biaxial acting sliding bearing assembly, and relates to the field of bearings, the biaxial acting sliding bearing assembly comprises a split type bearing seat, and the split type bearing seat comprises an upper bearing seat and a lower bearing seat; the split type bearing bush comprises an upper bearing bush body and a lower bearing bush body, the upper bearing bush body and the lower bearing bush body are arranged in the upper bearing seat and the lower bearing seat respectively and jointly form a bearing hole used for containing a rotating shaft, and the split type bearing bush further comprises a fastening device, a positioning device, an anti-impact assembly and a self-lubricating mechanism. Through the arrangement of the anti-impact assembly, efficient hydraulic buffering and vibration reduction are achieved. According to the assembly, sudden axial impact is converted into controllable hydraulic flow and damping dissipation, damage of impact loads to a bearing bush and equipment is greatly reduced, the operation stability of the bearing under the severe working condition is remarkably improved, the service life of the bearing under the severe working condition is remarkably prolonged, and the problem that in the prior art, the impact resistance is insufficient is solved; and automatic lubrication which is synchronous with the rotating speed and on demand is realized.

The invention belongs to the technical field of permanent magnet biased hybrid magnetic bearings, and discloses a magnet biased partial load unstable hybrid magnetic bearing structure and a bearing capacity design method. A magnet bias partial load unstable hybrid magnetic bearing structure directly uses permanent magnets to carry out partial load on radial magnetic attraction force of a rotor, the radial bearing capacity of the bearing can be greatly improved by increasing the number of the permanent magnets, the permanent magnets are installed in an embedded mode, the structure is compact, and the stability of the rotor in the radial direction is maintained with the assistance of an electromagnetic bearing. The application requirements of large bearing and small size can be met; in order to solve the radial instability characteristic of a rotor caused by magnet bias partial load, the invention provides a bearing capacity design method under the influence of external force such as magnet bias permanent magnetic attraction, rotor gravity, external radial load and electromagnetic attraction of an electromagnetic bearing, and the method does not need to depend on finite element calculation with relatively long time consumption. The design range of the stable bearing capacity of the bearing can be obtained only through simple analytical calculation, stable suspension of the rotor is achieved, and good practicability and convenience are achieved.

The utility model is suitable for the technical field of bearing seats, and provides a durable automobile bearing seat forge piece which comprises an outer ring. The retainer is arranged in the outer ring, a plurality of balls are arranged on the retainer, and the balls are in contact with the inner wall of the outer ring; the inner ring is assembled in the retainer; the heat dissipation mechanism is arranged on the outer ring and is used for dissipating heat in the outer ring; and the lubricating mechanism is arranged on the outer ring and is used for lubricating the balls. The durable automobile bearing seat forge piece provided by the scheme is good in heat dissipation effect, the failure rate caused by the poor heat dissipation effect on the whole is reduced, and therefore the whole durability is enhanced.

The invention discloses an axial clearance adjusting device and method for a deep groove ball bearing, and mainly relates to the field of bearing installation. Comprising an inner cylinder, a pressing disc is arranged at the bottom of the inner cylinder, an outer cylinder is arranged outside the inner cylinder in a sliding and sleeving mode, a bearing cover mounting disc is arranged on the outer cylinder, an elastic piece is arranged between the bearing cover mounting disc and the pressing disc, a limiting column matched with the bearing cover mounting disc for use is arranged on the pressing disc, and the top of the outer cylinder is lower than the top of the inner cylinder. The axial clearance measuring device has the advantages that the technical problem that the axial clearance of an existing deep groove ball bearing is inconvenient and inaccurate to measure can be solved, the axial clearance is converted into an easy-to-measure mode through the adjusting device, the measuring steps are greatly simplified, and the measuring convenience and accuracy are improved.

A rolling bearing, in particular a ball bearing, is in the form of two bearing rings that are mounted so as to be rotatable relative to each other about an axis. The roller bearing includes an inner ring and an outer ring which each form a guide portion of a guide. The guide portion surrounds the axis with the portion formed by the inner ring is radially opposite the portion formed by the outer ring. In the guide, rolling bodies are distributed around the axis and rest on the two guide portions. When the bearing rings rotate, the rolling bodies roll on the two guide portions. At least one of the rings has a slide ring as the guide portion and a stabilising ring on the slide ring. The slide ring and the stabilising ring are produced from first and second plastics materials, respectively. The first plastics material is softer than the second plastics material.

This utility model provides a split-type adjustable bearing housing, belonging to the technical field of bearing accessories. It addresses the problem that existing split-type bearing housings often use straight slot designs for bolt holes, relying solely on clamping force to fix the bolts to the equipment after passing through the holes, which easily leads to lateral displacement after prolonged operation. The design includes a top cover, sliding blocks, bolt seats, anti-displacement components, and anti-loosening components. Two sliding blocks are slidably connected inside the mounting plate; two bolt seats are fixedly connected to the outside of the two sliding blocks; the anti-displacement components are disposed inside the mounting plate; and two sets of anti-loosening components are disposed inside the two bolt seats. This utility model effectively avoids the overall positional displacement problem caused by equipment vibration after the bearing housing is connected. Simultaneously, the mechanical limiting structure of the anti-loosening components reliably constrains the fixing bolts, thereby ensuring that the bearing housing maintains a stable connection with the equipment during long-term operation.

The utility model provides a bearing oil circulation lubricating device which comprises a main positioning seat and a sealing outer lining, a set of fixing bases used for supporting the lower end of the main positioning seat are arranged at the lower end of the main positioning seat, and a set of rear positioning shells used for positioning the rear side of a bearing to be lubricated are arranged on the rear side of the main positioning seat. Compared with the prior art, the lubricating bearing positioning device has the advantages that the front sealing plate and the rear sealing plate are fixedly connected with the corresponding sealing linings through the bolts, so that the lubricating bearing positioning device is simple in structure and convenient to use, and the service life of the lubricating bearing positioning device is prolonged. And meanwhile, the rear sealing embedding seat is tightly attached to the rear side of the front sealing plate to enhance the sealing performance, during lubricating operation, lubricating oil is injected from an oil inlet, oil liquid is evenly diffused to a bearing raceway through an oil guide cavity, the inner embedded positioning ring ensures that an oil way is smooth, the sealing outer lining and the sealing inner lining act synergistically to prevent the oil liquid from leaking, and redundant oil liquid flows back to a circulating system from an oil outlet.

The casing (10) of a support assembly for food applications has a housing portion (20) having a through-seat (25) within which a bearing unit is seated. The casing has a flange portion (30) for fixing the casing to a machine. The flange portion has a base surface (35) and at least two through-holes (32) for housing elements for fixing the casing to the machine. The casing has at least two metal bushings (40), equal in number to the number of through-holes, housed stably inside respective through-holes and coaxial with them. The casing has at least two spacers (50), equal in number to the number of through-holes, applied on the base surface of the flange portion opposite the respective through-holes. The casing has at least two inserts (60), equal in number to the number of spacers, and housed with interference inside the respective metal bushings and inside the respective spacers.