3374results about "Bearing unit rigid support" patented technology

The invention discloses an elastic support integrated bearing and squeeze film damper integrated structure with outer ring radial holes. The elastic support integrated bearing and squeeze film damper integrated structure comprises an elastic support integrated outer ring, a bearing inner ring, a retainer, a rolling body, a squeeze film damper, a bearing seat and the like. The elastic support integrated outer ring adopts the integrated design of a squirrel-cage type elastic support and the bearing outer ring, the radial size is reduced, the centering precision is improved, and an oil storage groove and a radial oil hole are formed in the outer side wall of the bearing outer ring of the integrated structure; the extrusion oil film damper is located on the outer side of the elastic support integrated bearing, and an oil film is communicated with a radial oil hole in the bearing outer ring, so that bearing lubrication and the extrusion oil film damper share a lubricating oil path; radial lubricating oil lubrication of the bearing is achieved through the arrangement of the radial oil holes, and the situation that the bearing is damaged due to lack of oil lubrication under the extreme working condition is avoided; meanwhile, the oil storage grooves and the radial oil holes can effectively promote flowing of lubricating oil in an oil film, formation of a dead cavity of the squeeze oil film damper is avoided, and the vibration reduction effect of the squeeze oil film damper is enhanced.

The invention provides an enhanced heat conduction lubrication type ball bearing for an X-ray tube and a CT bulb tube. The enhanced heat conduction lubrication type ball bearing comprises a bearing sleeve, a sealing end cover, a bearing raceway, a fixing shaft, a sealing baffle and a ball. A bearing cavity for accommodating the bearing raceway is formed in the bearing sleeve, the bearing cavity is filled with liquid metal, gaps among the bearing raceway, the balls and the fixed shaft are filled with the liquid metal, and the fixed shaft is filled with a flowing heat dissipation medium; the two ends of the bearing sleeve are a closed end and an open end respectively, a sealing step is arranged at the open end, movable sealing grooves are formed in the end face of the sealing step and the end face of the sealing end cover, each movable sealing groove comprises two flow channels intersecting at an acute angle, and a sealing groove and a backflow hole communicated with the movable sealing grooves and the sealing groove are formed in the sealing end cover. The anode assembly has good lubricity, heat dissipation capacity and conductivity, the operation stability is improved, the service life is prolonged, and the heat dissipation power of the anode assembly is greatly improved.

The invention relates to a turbine tilting pad sliding bearing lubricating oil device and an oil temperature adjusting method. The lubricating oil device comprises an oil inlet pipe and an oil supply pipe. A mounting part is arranged at the oil outlet end of the oil inlet pipe and is provided with a rotating hole; the oil supply pipe is rotationally arranged on the rotating hole, and an oil spraying hole is formed in the outer side wall of the oil supply pipe; a rotating shifting block is arranged on the outer side wall of the oil supply pipe, a mounting groove is formed in the inner side wall of the rotating hole, an arc-shaped groove coaxial with the rotating hole is formed in the mounting groove, and the sliding end of the rotating shifting block is slidably arranged on the arc-shaped groove and divides the mounting groove into a supporting groove and a driving groove in the circumferential direction of the rotating hole; one end of the elastic piece is connected to the groove wall, away from the rotating shifting block, of the driving groove, and the other end of the elastic piece abuts against the rotating shifting block. The driving groove is filled with a driving body, and the driving body abuts against the rotating shifting block. The system can automatically adjust the temperature of the lubricating oil, has the characteristics of rapidness and high reliability, and can meet the requirement of rapid load change of a coal power unit under a novel power system.

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 fluid film bearing for a rotor hub of a wind turbine includes a first part and a second part rotatably coupled to each other about a longitudinal axis. The first part includes an annular first sliding surface extending in the circumferential direction of the fluid film bearing along the first part. In addition, the second part includes a support structure and a first group of bearing pads coupled to the support structure and having a bearing pad sliding surface configured to slide on the first sliding surface. In addition, the fluid film bearing further includes a seal arranged between the first part and the second part.

A gyroscopic roll stabilizer includes an enclosure, a flywheel assembly, a bearing, a motor, and a bearing cooling circuit. The enclosure is mounted to a gimbal for rotation about a gimbal axis and configured to maintain a below-ambient pressure. The flywheel assembly includes a flywheel and flywheel shaft. The bearing rotatably mounts the flywheel assembly inside the enclosure for rotation about a flywheel axis. The bearing has an inner race and an outer race. The inner race is rotationally fixed relative to the flywheel shaft, and the outer race is held rotationally fixed relative to the enclosure. The motor is operative to rotate the flywheel assembly. The bearing cooling circuit is configured to transfer heat away from the bearing by recirculating coolant along a closed fluid pathway. The gyroscopic roll stabilizer is configured to transfer heat away from the inner and / or outer race of the bearing to the coolant.

The invention relates to an optimization method of a wind power bearing, and belongs to the technical field of bearing optimization. According to the method, firstly, bearing parameters with the fatigue life conforming to the specification are obtained, then the deformation condition of an inner ring raceway is considered, the bearing parameters which are closer to the reality are obtained, contact stresses of corresponding rollers and the inner ring raceway under # imgabs0 #, # imgabs1 # and # imgabs2 # are obtained, and the three accurate contact stresses conforming to the corresponding specification are taken as the target. According to the method, the roller surface repair amount in the roller parameters is adjusted to optimize the wind power bearing, the obtained bearing parameters, the contact stress of the roller corresponding to the bearing parameters and the inner ring raceway and the error of the fatigue life are smaller, and then the accuracy of the bearing optimization result is improved.

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 provides a thrust sliding bearing, a shaft system and a wind generating set. The thrust sliding bearing comprises a thrust disc, a thrust supporting disc and a first bearing bush. The thrust disc is arranged on the rotating shaft and protrudes outwards in the radial direction relative to the rotating shaft; the thrust supporting part is opposite to the thrust disc in the axial direction of the rotating shaft, and the bearing bush assembly is fixedly installed on the axial side surface of the thrust disc, makes sliding contact with the thrust supporting part and can rotate along with the thrust disc. According to the thrust sliding bearing provided by the embodiment of the invention, the bearing bush assembly is fixedly mounted on the thrust disc, when the bearing bush assembly needs to be maintained or replaced, the thrust disc can be driven to rotate through the rotation of the rotating shaft, and under the condition, the bearing bush assembly can rotate along with the thrust disc, so that the bearing bush assembly can rotate along with the thrust disc; when the bearing bush assembly needs to be replaced, the bearing bush assembly needing to be replaced can be rotated to the upper non-load point, so that the bearing bush assembly can be detached from the rotating shaft under the condition that the bearing bush assembly needing to be replaced does not bear load, and the operation and maintenance difficulty can be remarkably reduced.

A bearing assembly includes an outer ring connectable with a housing, the outer ring having an outer ring raceway and a transmitting coil axially spaced from the outer ring raceway. The transmitting coil can be electrically connected to a battery and is configured to generate an electromagnetic field when a current flows therethrough. The inner ring can be arranged around a rotating shaft of the rotor and is provided with an inner ring raceway and a receiving coil which is spaced from the inner ring raceway in the axial direction. And the receiving coil is close to the transmitting coil and is in induction connection with the transmitting coil, so that current is generated in the receiving coil when the current flows through the transmitting coil. The receiving coil is connected with an electromagnetic coil of the motor rotor, so that current flows to the electromagnetic coil from the receiving coil. A plurality of rolling bodies are disposed between the outer ring raceway and the inner ring raceway to rotatably connect the outer ring and the inner ring together.

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.

A gyroscopic roll stabilizer includes an enclosure, a flywheel assembly, a bearing, a motor, and a bearing cooling circuit. The enclosure is mounted to a gimbal for rotation about a gimbal axis and configured to maintain a below-ambient pressure. The flywheel assembly includes a flywheel and flywheel shaft. The bearing rotatably mounts the flywheel assembly inside the enclosure for rotation about a flywheel axis. The bearing has an inner race and an outer race. The inner race is rotationally fixed relative to the flywheel shaft, and the outer race is held rotationally fixed relative to the enclosure. The motor is operative to rotate the flywheel assembly. The bearing cooling circuit is configured to transfer heat away from the bearing by recirculating coolant along a closed fluid pathway. The gyroscopic roll stabilizer is configured to transfer heat away from the inner and / or outer race of the bearing to the coolant.

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.

A linear drive includes an output member which is linearly movable with respect to a drive housing, and which has a spindle nut and a hollow output rod connected thereto. The output member is linearly displaceable by means of a rotationally drivable threaded spindle, which is inserted through the spindle nut into the output rod. To support the threaded spindle, a support apparatus is provided at its anterior end section, which has a rolling bearing and a sliding sleeve seated thereon. The sliding sleeve is divided into sliding sleeve segments, which are connected to one another by resilient joints and are each prestressed with a support area section against the inner peripheral surface of the output rod.

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.

The utility model relates to the technical field of photovoltaic equipment, and discloses a bearing assembly and a photovoltaic tracking support, the bearing assembly comprises a bearing main body and a limiting piece detachably connected to the bearing main body, the bearing main body is provided with an installation space in the axial direction of the bearing main body, and a main shaft of the photovoltaic support is installed; a protruding blocking shoulder is arranged on the peripheral wall of the bearing body in the radial direction, the bearing body comprises a first bearing split body and a second bearing split body which are matched with each other and connected through a mortise and tenon joint structure to form a whole bearing in the circumferential direction, and the limiting piece is arranged on the axial side, away from the blocking shoulder of the bearing body, of the bearing body. At least part of the limiting piece protrudes out of the bearing body in the radial direction, so that the axial stability of the bearing is enhanced, field maintenance and replacement are facilitated, the photovoltaic tracking support is provided with the bearing assembly, the bearing seat is limited between the blocking shoulder and the limiting piece, the operation efficiency of the photovoltaic tracking support can be effectively improved, and the service life of the photovoltaic tracking support can be effectively prolonged. The maintenance cost is reduced.

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 thrust bearing comprises an outer shell, a main oil chamber is arranged at the bottom of the outer shell, and an oil suction opening is formed in the upper portion of the main oil chamber; the thrust main shaft is rotationally installed in the outer shell, a thrust disc extending outwards in the radial direction is arranged on the thrust main shaft, and when the thrust disc rotates, lubricating oil in the main oil chamber can be guided to the outer wall of the circumference of the thrust disc through the oil suction opening and rotates along with the thrust disc; a first mounting cavity for mounting a radial bearing bush assembly is formed between the outer diameter of the thrust main shaft and the outer shell; a self-lubricating system and a forced lubricating system are combined, reliable lubrication of a thrust bearing bush and a radial bearing bush under different working conditions is achieved, the self-lubricating system utilizes rotation of a thrust disc to guide oil liquid to flow, a passive oil supply path driven by a structure is constructed, the self-lubricating system is suitable for power failure or low load scenes, and the service life of the thrust bearing bush and the radial bearing bush is prolonged. And on the basis of forced lubrication, a self-lubricating system is combined to further improve the lubricating effect.

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.

The utility model relates to a liquid metal bearing with a backflow channel. The liquid metal bearing comprises a shaft and a rotating assembly, a gap between the shaft and the rotating assembly is filled with liquid metal; the shaft comprises a shaft body and a shaft bulge annularly arranged on the shaft body; the rotating assembly comprises a shaft sleeve arranged at one end of the shaft body in a sleeving mode, a sealing partition plate arranged at one end of the shaft sleeve and a sealing flange arranged on one side of the sealing partition plate. The shaft sleeve and the sealing flange abut against the shaft protrusion, and the outer side of the shaft protrusion is sleeved with the sealing partition plate. A liquid storage groove communicated with the gap is formed in the inner surface of the sealing flange; a spiral backflow channel is arranged in the sealing flange or on the outer surface, close to the liquid storage tank, of the shaft body, and the spiral backflow channel is communicated with the liquid storage tank and the gap. The utility model also relates to an X-ray tube. According to the X-ray tube, leakage of liquid metal can be avoided, and the reliability of the X-ray tube is effectively improved.

A bearing device includes a bearing having first and second rings, a bushing and an electrically insulating insert overmolded between and connecting the bushing and a cylindrical surface of the second ring. The bushing is formed from two parts each having a cylindrical portion and a radial collar, and the insert is overmolded onto the cylindrical portions and the collars. Also, a surface of the first cylindrical portion and a surface of the second cylindrical portion together delimit a radially inner surface of the bushing or a radially outer surface of the bushing.

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.

The utility model provides a magnetic suspension bearing rotor, a magnetic suspension bearing and a rotating shaft assembly, the magnetic suspension bearing rotor comprises a lining, the outer circumferential wall of the lining is sequentially provided with a front baffle ring, a rear baffle ring and a rotor core clamped between the front baffle ring and the rear baffle ring along the axial direction of the lining, the rotor core and the bushing are in transition fit or clearance fit, and at least one of the front baffle ring and the rear baffle ring is in threaded connection with the bushing. According to the utility model, the rotor iron core does not need to be heated and sleeved, so that the manufacturability and the benefit can be effectively improved.

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 a low-vibration low-noise underwater propulsion motor, which comprises a shell, a stator, a rotor, a rotating shaft, a pressure compensation mechanism and the like, and is characterized in that the pressure compensation mechanism comprises a compensator body and an elastic element, the compensator body is hermetically connected with one end of the shell, and a sealed accommodating space is arranged in the compensator body; the elastic element is arranged in the sealed accommodating space and is connected or contacted with the thrust sliding bearing, and the thrust sliding bearing is movably arranged on the rotating shaft in a sleeving manner; an inner cavity of the shell is filled with insulating oil with set pressure; the pressure compensation mechanism can enable insulating oil in the propulsion motor to generate pressure larger than the external environment. The low-vibration underwater propulsion motor has the advantages of low vibration, low noise and the like, can adapt to different diving depths, keeps a good sealing effect, and can stably run in deep water for a long time.