390results about "Elastic bearings" patented technology

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.

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.

A squeeze film damper includes a first component configured to be rigidly coupled to a support structure of a rotating machinery; a second component extending between first and second axial ends, the first axial end facing the first component, the second component having an outer surface configured to be at least partially surrounded by a squeeze film annulus; a journal bearing coupled to the second component for pivoting a rotary shaft; a flexible spoke, wherein the flexible spoke has first and second ends, the first end being rigidly coupled to the first component; the second component including a clearance hole extending in axial direction of the second component starting from the first axial end of the second component, wherein the flexible spoke second end is rigidly coupled to the second component and the flexible spoke extends through the clearance hole.

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 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 bearing system for a rotatable shaft includes a bearing shaft (18) coaxial with the rotatable shaft, a bearing coaxial with the bearing shaft (18), a bearing housing surrounding the bearing and having a plurality of retention channels disposed axially along the bearing housing, and a dampening assembly comprising a plurality of circumferential seal elements disposed within each of the plurality of retention channels. A first subset of the plurality of seal elements is formed from a first material and a second subset of the plurality of seal elements is formed from a second material.

The invention relates to the technical field of air bearings, in particular to an air flexible supporting tilting pad bearing with an interlayer type damping structure and a manufacturing method, the air flexible supporting tilting pad bearing comprises a bearing outer ring, and four tilting pads are connected to the inner side of the bearing outer ring through four sets of damping structures; the damping structure comprises a swing spring, and an interlayer type damping layer is arranged in the swing spring. An air inlet hole communicated with an external air supply channel is formed in the end face of the tilting pad, a pressure equalizing groove is formed in the inner side face of the tilting pad, and a capillary throttling hole communicated with the air inlet hole is formed in the pressure equalizing groove; the high-strength and high-toughness alloy steel and the nitrile rubber with good elasticity and oil resistance are effectively combined, so that the bearing capacity and the overall stability of the bearing structure are enhanced, and meanwhile, the vibration reduction and buffering characteristics of the bearing structure are remarkably improved; the multi-material collaborative design is beneficial to improving the operation reliability and prolonging the service life of a bearing system, and the comprehensive performance requirement for a high-performance vibration reduction supporting component under the complex working condition is met.

The invention provides a high-stability bearing seat based on elastic buffering, the axis of the high-stability bearing seat is in the vertical direction after installation, the high-stability bearing seat comprises a seat body, an annular cavity is formed in the seat body, a plurality of fan-shaped damping units which are evenly arranged in the circumferential direction are arranged in the annular cavity, and the fan-shaped damping units are filled with magnetorheological fluid. Each fan-shaped damping unit comprises an outer cavity and an inner cavity which are sequentially arranged from outside to inside in the radial direction, the outer cavities and the inner cavities are connected through radial straight-through flow channels, a plurality of honeycomb hole plates are arranged in the inner cavities, and honeycomb holes of the honeycomb hole plates are staggered in the radial direction so that labyrinth flow channels can be formed in the inner cavities. A connecting pipe is arranged between every two adjacent fan-shaped damping units so that a circumferential straight-through flow channel can be formed between the fan-shaped damping units, the inner side wall and the outer side wall of each fan-shaped damping unit have the micro-deformation capacity, the preset pre-deformation amount of the outer side wall is larger than that of the inner side wall, and the yield strength of the inner side wall is larger than that of the outer side wall.

The utility model belongs to the technical field of CT machine main bearing damping, and particularly relates to a high-speed CT machine main bearing damping device which comprises a limiting block. Connecting blocks are fixedly connected between the multiple limiting blocks. Inner rings of double-row angle bearings are fixedly connected to the side walls of the multiple connecting blocks. A connecting rod is slidably connected into the limiting block. The ends of the two connecting rods are fixedly connected with fixing blocks, and the other ends of the two connecting rods are fixedly connected with centrifugal blocks. A fixed convex block is fixedly connected to the side wall of the centrifugal block; clamping wheels are fixedly connected between the corresponding fixing protruding blocks, and the multiple clamping wheels are arranged corresponding to the size of the double-row angle bearing. According to the utility model, the plurality of clamping wheels are arranged to extrude the inner ring of the double-row angle bearing which rotates at a high speed, so that the inner ring and the outer ring of the double-row angle bearing are tightly attached, the vibration condition caused by a raceway structure error and a ball size error is further reduced, the negative influence of bearing vibration on CT imaging is favorably relieved, and the imaging quality of a CT machine is improved.

The present invention relates to a press-fit ring (1) for supporting an inner element (10) in an outer element (11), an electric machine (12), and a muscle-powered vehicle (12). The press-fit ring (1), for supporting an inner element (10) in an outer element (11), comprises a radially inner cover layer (2a), a radially outer cover layer (2b), and a first viscoelastic intermediate layer (3a), wherein, in the radial direction (4), the first viscoelastic intermediate layer (3a) is arranged between the radially inner cover layer (2a) and the radially outer cover layer (2b), and wherein the radially inner cover layer (2a), the radially outer cover layer (2b), and the first viscoelastic intermediate layer (3a) are arranged concentrically.

The invention provides an anti-impact bearing structure and a brushless motor, and relates to the technical field of brushless motors. The shock-resistant bearing structure comprises a rotating shaft body, a bearing, a base, a bearing cover, a shaft end cover and a buffer assembly, the shaft end cover is arranged on the outer side of the rotating shaft body in a sleeving mode, the shaft end cover and the rotating shaft body are each provided with a corresponding threaded section, and the shaft end cover is in threaded connection with the rotating shaft body through the threaded sections; the bearings are arranged on the outer sides of the shaft end covers in a sleeving mode, the bases are arranged on the outer sides of the bearings in a sleeving mode, the multiple bearings are arranged at intervals in the axial direction of the rotating shaft body, and the buffering assemblies are arranged between the adjacent bearings; the bearing cover is connected with the base, in the axial direction of the rotating shaft body, the bearing cover and the base clamp outer rings of the multiple bearings, and the rotating shaft body and the shaft end cover clamp inner rings of the multiple bearings. The impact resistance of the brushless motor is further improved on the premise that the structure of the brushless motor is kept compact and the cost is controlled.

The application relates to the technical field of air bearings, in particular to an air bearing based on a bottom plate embossed boss. The air bearing comprises a bottom plate, a plurality of supporting wave foils and a top foil, the bottom plate is provided with bosses protruding towards the supporting wave foils at positions corresponding to the supporting wave foils, the bosses are integrally embossed and formed with the bottom plate, and the bosses are fixedly connected with the top foil; one side of the supporting wave foil is provided with a clamping hole matched with the shape of the boss, the supporting wave foil is fixedly connected with the boss through the clamping hole, and the pre-tightening assembly is arranged between the positioning clamping boss and the positioning clamping groove. The spot welding process between the supporting wave foil and the bottom plate is cancelled, the unstable size tolerance caused by multiple weldings is avoided, the qualified rate of the product is greatly improved, the processing cost is reduced, the problem that warping deformation caused by too many spot weldings affects the flatness is avoided, the qualified rate of the finished product is improved, the welding spots on the contact surface between the top foil and the thrust disc are reduced, and the flatness and smoothness of the top foil are improved.

The utility model relates to the technical field of adjustable bearing bases, and discloses an adjustable bearing base suitable for a high-load environment, which comprises a base plate with a bolt connecting part and a lower embedded type damping alloy plate fixed on the base plate, the upper end face of the lower embedded type damping alloy plate is provided with cones which are arranged at intervals in an array mode, and the lower end face of the lower embedded type damping alloy plate is provided with a lower embedded type damping alloy plate. The upper embedded type damping alloy plate is embedded with the lower embedded type damping alloy plate, the lower end face of the upper embedded type damping alloy plate is also provided with cones which are arranged at intervals in an array mode, and a composite rubber anti-vibration energy-absorbing layer is arranged between the upper embedded type damping alloy plate and the lower embedded type damping alloy plate in an attached mode. And a bearing stepped hole seat is fixedly arranged on the upper end surface of the upper embedded damping alloy plate. Through the embedded structural design of the lower embedded type damping alloy plate and the upper embedded type damping alloy plate and the structure that the attached composite rubber anti-vibration energy-absorbing layer is arranged between the lower embedded type damping alloy plate and the upper embedded type damping alloy plate, effective flexible damping and supporting performance can be achieved under the high-load working condition.

The invention discloses a radial and thrust combined sliding bearing for a gear transmission device, and relates to the technical field of bearings. The problems that a common sliding bearing can only bear force in a single direction, radial and thrust bearings need to be arranged at the same time, and light weight and integration of a device are not facilitated are solved. The bearing comprises a bearing body, the bearing body is installed in a bearing box, the bearing body is made of carbon structural steel, a radial positioning piece and an axial positioning piece are arranged between the bearing body and the bearing box, lubricating oil flows to the bearing body through a first channel and flows to a thrust pad through a second channel, and under the action of a rotating gear shaft, the bearing body is driven to rotate. According to the bearing, dynamic pressure liquid friction is established, the effects of radial supporting and axial positioning are achieved, the thrust pads on the two sides of the bearing body can bear axial stress in two directions, radial and thrust bearings do not need to be arranged at the same time, the axial size can be effectively reduced under the condition that the axial space of a gearbox is limited, and integration is better.

[Integrated electrically insulated bearing device, particularly for electric motors or machines] The device includes a bearing 10 having a first ring 12 and a second ring 14. The device includes an insulating sleeve 26 mounted on the second ring 14 and having a bushing 28 and an insulating lining 30. The insulating lining is fixed to the second ring 14 and to at least one of the outer and inner surfaces of the bushing 28. The bushing 28 also includes first and second front faces 28c, 28d defining the axial length of said bushing.A first connecting chamfer 28e links the first front face 28c of the socket to the outer surface, and is provided with a first concave radius connecting to the outer surface by forming a sharp edge, a second concave radius connecting to the first front face 28c by forming another sharp edge, and a frustoconical surface extending between the first and second concave radii. Reference: Figure 1.

Elastic joint comprising: - an inner ring (1) provided with an axial opening (11) for being mounted on a shaft "E" and with an outer surface having: two opposite intermediate sections (13) having a decreasing cross-section towards opposite ends of said inner ring (1) and forming supporting zones for the metal wire cushions (3), and two end sections (14) having a smaller cross-section than the central section; - an outer ring (2) provided with an outer cylindrical surface (21) for mounting the ring on a support (S) and with an inner surface with two intermediate portions (22) having a decreasing cross-section towards opposite ends of the outer ring (2), facing the intermediate sections (13) of the inner ring (2); and - metal wire cushions (3) arranged between the inner ring and the outer ring (2).

To provide a hydrostatic bearing spindle with improved load-bearing characteristics. [Solution] The hydrostatic bearing spindle 1 comprises a rotating shaft 10, a radial bearing sleeve 21, a thrust bearing sleeve 50, and a magnet 55. The rotating shaft 10 includes a shaft portion 11 extending in the thrust direction T and a thrust plate 12 extending from the shaft portion 11 in the radial direction R. The thrust bearing sleeve 50 and the magnet 55 are positioned in the thrust direction T on the side opposite to the radial bearing sleeve 21 relative to the thrust plate 12.

The bearing device comprises a bearing 10, which is provided with a first ring 12 and a second ring 14, which are able to rotate relative to each other. The device comprises at least one insulating sleeve 26, which is attached to the second ring 14 of the bearing and is provided with a bushing 28 and an insulating insert 30, which is inserted radially between the second ring 14 and the bushing 28 and is made of electrically insulating material. The bushing comprises an outer surface 28a and an inner surface 28b, which limit its radial thickness. The insulating insert 30 is overmolded onto the second ring 14 of the bearing and onto at least one of the outer and inner surfaces of the bushing 28. The bushing 28 is made of at least two first and second parts 32, 34, each part comprising an axial section 32a, 34a and a radial shoulder 32b, 34b which extends the axial section radially towards the inside.

An assembly for aircraft turbomachine, including a stator part, a first bearing, a second bearing and a support part in an oil enclosure delimited by an outer enclosure delimiting portion integral with the stator part, the support part including a first axial end portion forming an outer ring of the first bearing, or supporting such a ring; a second axial end portion forming an outer ring of the second bearing or supporting such a ring, a compression damping oil film being arranged between the second portion and the stator part; an intermediate ring, arranged axially between the first and second portions, and forming a flexible connection as well as an oil-spray protection element.

A motor includes a motor rotating shaft, a supporting piece and a housing, and the housing includes a motor end cover, the supporting piece is supported between the outer peripheral side of the motor rotating shaft and the motor end cover, and an accommodating cavity suitable for accommodating damping liquid is provided inside the support, and the supporting piece is provided to be elastically deformed under the abutting of the motor rotating shaft.

The utility model relates to the technical field of bearings, in particular to a noise reduction type sliding bearing for a wind turbine generator, which comprises a first bearing seat and a second bearing seat, connecting supports are arranged on the inner side of the first bearing seat and the inner side of the second bearing seat, and an upper bearing bush and a lower bearing bush are fixedly connected to the inner surfaces of the two connecting supports respectively. The arc-shaped cavities in the first bearing seat and the second bearing seat are matched with the communicating mechanism composed of the first communicating pipe and the second communicating pipe, the first oil cavity is communicated with the second oil cavity, the first oil cavity is communicated with the second oil cavity through the communicating mechanism composed of the first communicating pipe and the second communicating pipe, and the oil cavity is communicated with the second oil cavity through the connecting support. The first oil cavity and the second oil cavity are prevented from being provided with openings and directly butted and communicated through the openings to cause oil leakage at the joint, and the situation that the service life of the bearing is affected by aggravation of friction due to direct contact friction of the metal surface caused by rapid loss of lubricating oil can be prevented.

A squeeze film damper (10) has an inner ring (11) and an outer ring (12), wherein the inner ring (11) and the outer ring (12) can be braced and / or can be variably positioned in relation to one another. In a method for creating a squeeze film damper (10), elements of the squeeze film damper (10) are braced or positioned, wherein a first element is an inner ring (11) and a second element is an outer ring (12).

The bearing device comprises a bearing 10, which is provided with a first ring 12 and a second ring 14. The device comprises at least one insulating sleeve 26, which is attached to the second ring 14 and provided with a bushing 28 and with an insulating insert 30 made of electrically insulating material. The insulating insert is overmolded onto the second ring 14 and onto at least one of the outer and inner surfaces of the bushing 28 that define its radial thickness. The device further comprises an anti-rotation device 32, which is provided with at least one first retaining pin 42, which is at least partially seated in first slots 34, 40 of the bushing, the insulating insert and the second ring, a carrier 44 to which the first retaining pin is attached, and at least one axial retaining element 46 of the device.

A strain wave gear device (1) is provided with: an input shaft (6) directly connected to a cam plate (41) of a wave generator (4); and first and second support bearings (7, 9) that support the input shaft. The first and second support bearings (7, 9) are attached to the first and second bearing attachment parts (11, 13) in a clearance fit state, respectively. In order to eliminate rattling of the first and second support bearings (7, 9), outer rings of the first and second support bearings (7, 9) are pressed radially inward by first and second elastic rings (12, 14). Eccentricity between the wave generator (4) and the first and second support bearings (7, 9) caused by a load applied from a load side to a second end plate (10), which is an output side member, is absorbed by elastic deformation of the first and second elastic rings (12, 14), thereby preventing unnecessary radial force from being applied to the wave generator (4).

The invention discloses a heavy-load tapered roller bearing, and relates to the technical field of heavy engineering machinery. A bearing outer ring and two symmetrically arranged bearing inner rings are arranged, guide flanges are arranged on the two sides of the inner wall of the outer ring, a stamping retainer is assembled to be connected with a pocket retainer, tapered rollers are evenly distributed on one side wall of the retainer, and a roller set is arranged between every two adjacent rollers; an annular positioning rib in the middle of the roller set is attached to a pocket protective ring to prevent displacement, retention grooves in the two ends guide conical rollers to move through polished annular guide edges, heavy loads are synergistically dispersed, conical surface racing tracks are formed in the two ends of the outer ring, main bearing rollers are arranged in the outer ring, and stress concentration is prevented through arc transition parts on the edges of the racing tracks. The outer ring and the protective ring are provided with lubricating channels communicated with the racing tracks. A grease injection channel is formed between the outer ring and one inner ring; the middle of the inner ring penetrates through one end of a locking screw to be embedded into a wrench meshing groove, the other end of the locking screw is connected with a pre-tightening nut to be embedded into a sealing lip grease storage cavity, a sealing lip with a wear-resistant coating and a finger groove is embedded into the other inner ring locking groove, an annular oil storage groove is formed in the outer wall of the inner ring to supplement grease, and heavy-load long-acting operation is guaranteed.

To provide a motor for suppressing an increase in labor and costs even when used in applications such as a drone or other floating type mobile body that receives a large impact.SOLUTION: A motor 1 includes: a shaft 41; a plurality of bearings 42 supporting the shaft 41; a cartridge 4 having a sleeve 43 surrounding the bearings 42; a bottom part 51 that receives an impact from the outside; and a housing 5 having a mounting part 54 provided on the bottom part 51. The bottom part 51 of the housing 5 extends in a direction intersecting a longitudinal direction of the shaft 41. The cartridge 4 is detachably attached to the mounting part 54.SELECTED DRAWING: Figure 1

The invention relates to a flexible guide (20) for a rotary resonator mechanism, in particular for a clockwork movement, the guide (20) comprising a fixed support (25), a movable element (26) relative to the fixed support (25), at least two main flexible blades (36, 37, 38) allowing the movable element (26) to move relative to the fixed support (25) by bending the main flexible blades (36, 37, 38) in a rotary motion around a center of rotation, the flexible guide (20) being arranged substantially in a plane, the flexible guide comprising at least two translation tables (33, 34, 35) each joined to one end of a main flexible blade (36, 37, 38), such that each translation table (33, 34, 35) is configured to move in translation at least partially under the effect of the bending of the main flexible blade (36, 37, 38). 37, 38) corresponding, the flexible guide (20) comprising at least one tertiary flexible blade (31, 39,41) linking the two translation tables (33, 34, 35).

An electric actuator assembly (20) having a support housing (28, 124), a first stator magnetic field generating assembly (26) secured to the support housing (28, 124) and a movable armature assembly (22). The movable armature assembly (22) includes a plate assembly having a center support (150). The electric actuator assembly also includes a first armature magnetic field generating assembly configured to provide magnetic fields operative with a first stator magnetic field generating assembly to provide linear motion of the movable armature assembly (22) along a reference axis, the first armature magnetic field generating assembly including first and second magnetic assemblies secured to opposite sides of the center support. In another embodiment, the electric linear actuator (20) includes a rotational component (27) coupled to a linear component (25) to move therewith. The rotational component (27) includes an armature magnetic field generating assembly being one of longer or shorter than a stator magnetic field generating assembly.

The present invention is to provide a bearing device with a squeeze film damper, which is able to obtain high vibration stability, and to provide a centrifugal compressor including the bearing device. A bearing device (1) with a squeeze film damper according to the present invention includes a plurality of pads (3) that constitute a bearing surface supporting a rotating shaft (2), a bearing housing (4) that accommodates the pads (3), a housing (5) that is located outside the bearing housing (4) in a radial direction, and a plurality of squeeze film damper parts (7) arranged in a circumferential direction at a clearance (11) between the bearing housing (4) and the housing (5). Each of the squeeze film damper parts (7) includes a plurality of elastic bodies (6) that repel a radial force. The plurality of elastic bodies (6) are set such that overall stiffness is different between in a vertical direction and in a horizontal direction.