269results 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 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 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.

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.

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.

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.

[Bearing device with integrated electrical insulation, particularly for electric motors or machines, and associated manufacturing processes] The bearing device comprises a bearing 10 having a first ring 12 and a second ring 14. The device includes at least one insulating sleeve 26 mounted on the second ring 14 and having a bushing 28 and an insulating lining 30 made of electrically insulating material. The insulating lining is overmolded onto the second ring 14 and at least onto one of the outer and inner surfaces of the bushing 28. Said bushing surface has at least one first groove 36 within which extends a first rib 40 for attaching the insulating lining, which has a complementary shape. Said first groove 36 extends circumferentially around a first axis that is radially offset with respect to the axis 29 of said bushing surface. Reference: Figure 1

A device for guiding a shaft of an aircraft turbine engine, the device including a rolling bearing;—an annular bearing support and—an oil film compression damping system including two annular sealing segments; and—a first oil supply circuit this first circuit being connected to an annular supply groove wherein the damping system further—includes a second oil supply circuit, this second circuit being connected to at least one annular temperature control groove which is independent of the supply groove and which runs around one of the sealing segments.

The damping multilayer rubber bearing comprises an outer sleeve, a plurality of layers of spacers and a core shaft body which are sequentially arranged from outside to inside, and rubber is integrally formed and vulcanized among the outer sleeve, the spacers, the spacers and the core shaft body to form a whole; the rubber fully wraps the multiple spacers and extends to the end face of the outer sleeve. The spacers are arranged to be spherical arc-shaped, and the two symmetrical spacers form a sphere with a gap; the spacers are arranged at equal intervals and unequal heights; and the spacers and the flat surface of the mandrel body are crosswise arranged at an angle of 45 degrees. The mold comprises an integral lower mold, a middle mold and a split upper mold, the integral lower mold is provided with a positioning groove and a positioning pin, and the split upper mold is provided with a positioning groove, a positioning pin and a glue injection hole. The damping multilayer rubber bearing disclosed by the utility model can replace a metal bearing, so that not only is the cost reduced, but also the problem of abnormal sound caused by long-term use of the metal bearing is solved. The die can effectively improve the qualification rate and the production efficiency of the bearing, and ensures the quality and the service life of the bearing.

The application discloses a kind of permanent magnet water-lubricated bearings with double eccentric cylinder composite bearing bush of staggered structure, including bearing shell, permanent magnet unit, bearing end cover and double eccentric cylinder composite bearing bush.The application uses magnetic force support technology on the basis of traditional water-lubricated bearing, permanent magnet unit can provide upward magnetic force and its radian value range ensures that magnetic force direction is upward, reduces the load of water-lubricated bearing on rotating shaft, improves lubrication state, reduces friction and wear of water-lubricated bearing.At the same time, the bearing bush is designed into double eccentric cylinder structure, which can reduce the air gap between permanent magnet block and bearing bush, increase magnetic force, and further reduce the load on water-lubricated bearing.The application adopts double-layer bearing bush with significant difference in material elastic modulus, which meets the needs of water-lubricated bearing wear resistance, vibration and noise reduction, and unbalanced load resistance.The application adopts staggered structure, which can improve the lubrication state between shaft and bearing bush, promote the generation of dynamic pressure lubrication, and thus enhance the fluid dynamic pressure effect.

The invention relates to a bearing-shaft assembly comprising: a) at least one shaft (1) which rotates or can rotate about a rotational axis (A) and which is mounted in at least one bearing (2, 12), in particular a bearing that is arranged coaxially to the rotational axis (A), and b) at least one clamping element (6) for exerting a clamping effect or a clamping force between the shaft (1) and the bearing (2) or a receiving element (8), wherein c) the at least one clamping element (6) is actuated or can be actuated or is activated or can be activated, in particular by means of a control unit (24), such that by increasing the clamping effect or clamping force, the rigidity of the bearing-shaft assembly is increased or can be increased and / or the resonance range and / or the natural frequency of the bearing-shaft assembly is shifted or can be shifted.

The present invention provides a preload bearing device that can suppress changes (increases) in preload due to temperature rise caused by heat generation during operation (rotation). [Solution] The preload bearing device 10 comprises a first angular contact bearing unit 16, a second angular contact bearing unit 18, and a preload application mechanism 20. The preload application mechanism 20 applies preload by elastically pressing the first outer ring 172 of the first angular contact bearing unit 16 and the second outer ring 192 of the second angular contact bearing unit 18 in the axial direction. The first preload application unit 52 is positioned between the first outer ring 172 and the second outer ring 192. The second preload application unit 54 is positioned between the second outer ring 192 and the second wall portion 42b, and presses the second outer ring 192 toward the first outer ring 172 and the first wall portion 42a.

The invention discloses a composite throttling static pressure gas radial bearing for a wafer thinning machine gas floating main shaft, and belongs to the technical field of static pressure gas bearings. Comprising a bearing shell, a bearing inner ring and a composite throttler which are sequentially arranged in the bearing shell in the axial direction, compression cages symmetrically arranged on the two axial outer side end faces of the bearing shell, and elastic rings, grading rings and pre-tightening compression rings which are arranged between the bearing shell and the interiors of the compression cages. The compression cage comprises a compression cage outer ring, a compression cage inner ring, a compression ring axially arranged between the inner ring and the outer ring, and a plurality of elastic compression structures evenly connected between the compression ring and the compression cage outer ring and the compression cage inner ring in the circumferential direction. By designing the compression cage structure, the radial vibration motion of the bearing inner ring is converted into the axial vibration of the pre-tightening compression ring, then the strain energy of the elastic ring is converted into electric energy consumption, piezoelectric shunt damping is provided for the bearing, the vibration amplitude of the bearing inner ring is reduced, and the stability of the static pressure gas radial bearing is effectively improved.