160results about "Elastic bearings" patented technology

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.

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 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 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).

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 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.

A slew bearing for rotatably supporting an object on a base about a slew axis. The slew bearing comprises a stationary ring and a rotary ring part. The stationary ring part is provided with a stationary raceway member forming a stationary raceway surface oriented substantially perpendicular to the slew axis. The rotary ring part is provided with a rotary raceway member forming a rotary raceway surface. Rolling elements are provided between the stationary raceway surface and the rotary raceway surface. The slew bearing further comprises an elastically compressible resilient insert sandwiched either between the rotary raceway member and the rotary ring part or between the stationary ring part and the stationary raceway member. The slew bearing further comprises an axial load sensor for monitoring an axial load on the slew bearing by measuring a distance over the resilient insert.

The invention belongs to the technical field of ship propulsion system bearing structure design and vibration control, and discloses an isobaric expansion type stern bearing based on a negative Poisson's ratio topological lining structure, and a negative Poisson's ratio topological layer is composed of geometric topological units and generates tangential expansion deformation under the action of radial load. Through the negative Poisson's ratio effect, the radial compression load of the shaft system is converted into circumferential expansion response, isobaric expansion of a shaft-lining contact area is achieved, the effective bearing area is increased, and contact pressure distribution is homogenized. The topology lining is divided into a head end topology area, a transition area, a middle topology area, a transition area and a stern end topology area in the axial direction, and all the areas are matched with non-uniform distribution of shaft system bending, unbalance loading and lubricating states under the low-speed and heavy-load working conditions by regulating and controlling topological unit geometric parameters, equivalent Poisson ratios and negative Poisson ratio topological layer thicknesses. According to the invention, edge high pressure and local wear can be obviously reduced, water film stability is improved, bearing capacity and vibration and noise reduction performance of the stern bearing are improved, and service life is prolonged.

[Electrically insulated bearing device, particularly for electric motors or machines] The device comprises 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 gasket 30. The insulating gasket 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 bushing to the outer surface and has a first radius connecting to the first front face by forming a sharp edge and a spherical surface connecting to the outer surface by forming another sharp edge and connecting to the radius. Reference: Figure 1

To stably suppress the vibration of a rotor which is rotated at a high speed.SOLUTION: A compressor system includes a driving machine, and a compressor, the compressor including the rotor which can be rotated around the axis line, a casing covering the rotor, and a squeeze film damper arranged at the end of the rotor for enabling the indirect suppression of the vibration of the rotor via fluid. The rotor has a plurality of impellers having a solid structure which is formed in a disc shape with the axis line as a center and the center of which is embedded, and neighboring one another in the axial direction that the axis line extends, and a bolt fixing part having a plurality of bolts for fixing the plurality of impellers arranged side by side in the axial direction, in groups. The squeeze film damper is arranged at the end of the rotor not connected to another rotary machine, in the axial direction.SELECTED DRAWING: Figure 1

The invention discloses a pushing type rotary steering drilling tool, which relates to the technical field of petroleum drilling downhole tools, and comprises an upper driving shaft, a lower driving shaft, a non-rotating jacket, a hydraulic module and a bearing system. The hydraulic module is fixed in the non-rotating outer sleeve and comprises a hydraulic cylinder, a plunger and a first oil bag, a closed hydraulic system is formed, and the pushing block is driven to stretch out in the radial direction. The upper driving shaft and the lower driving shaft are rotatably supported in the non-rotating outer sleeve through the male bearing assembly and the female bearing assembly, and energy and signals are wirelessly transmitted through the inner rotary transformation assembly and the outer rotary transformation assembly. The guiding reliability and the control precision of the tool under the severe well condition are remarkably improved, and the service life of key components is remarkably prolonged.

A bearing device is configured to rotatably support a rotational shaft of a rotating machine and includes: a semi-floating bearing supported by a bearing housing; and an anti-rotation pin fixed to the bearing housing and having an insertion portion inserted from an outer peripheral side into an insertion hole formed on an outer surface of the semi-floating bearing. At least one of the insertion hole or the insertion portion has at least one protrusion that protrudes toward the other of the insertion hole or the insertion portion in a plan view perpendicular to an axis of the rotational shaft.

The invention relates to a rotary bearing (B) intended to be positioned between a rotary member (40) of an engine and a primary shaft (50) of a gearbox, the rotary bearing comprising at least two cylindrical rings (10, 20, 30, 35), having an axis X, said cylindrical rings being in contact with one another and including: - an inner ring fixedly or slidingly mounted on the primary shaft; and - an outer ring fixedly mounted in the rotary member, a third ring housed in the outer ring and configured to enable the primary shaft to be inserted into the rotary bearing, the cylindrical rings being configured to align the primary shaft with the rotary member by means of at least one ring configured to provide at least one degree of freedom and at least one ring made of a synthetic or composite material enhancing the sliding properties thereof.

The utility model discloses a kind of injection molding bearing for clothes dryer motor and clothes dryer motor, wherein injection molding bearing for clothes dryer motor includes the bearing assembly and dustproof component of mutually connected and inside and outside nested settings, the bearing assembly includes bearing main body (1), the outside of bearing main body (1) is equipped with annular plastic collar (2), and the periphery of plastic collar (2) is annularly distributed with several clamping slots (3);The dustproof component includes dustproof sheet (4), and the outside of dustproof sheet (4) is equipped with first rubber ring (5), and the periphery of first rubber ring (5) is annularly distributed with several clamping blocks (6), and the bearing assembly and dustproof component are mutually buckled between clamping slot (3) and clamping block (6).The utility model has the characteristics that installation stability is good.

A bearing device includes a ring having a cylindrical surface and first and second axially spaced end surfaces, a bushing, and an electrically insulating insert overmolded between and connecting the bushing and the cylindrical surface of the second ring. The bushing includes an cylindrical portion and a first annular flange extending radially from a first axial end of the cylindrical portion and a second annular flange extending radially from a second axial end of the cylindrical portion, and a portion of the ring is located axially between the first and second annular flanges. A minimum axial distance between the first annular flange and the second annular flange is greater than the maximum axial width of the ring, and the electrically insulating insert is overmolded onto the cylindrical portion and onto the first annular flange and onto the second annular flange and onto the ring.

The invention discloses a composite throttling static pressure gas thrust bearing for a wafer thinning machine gas floating main shaft, and belongs to the technical field of static pressure gas bearings. Comprising a bearing base, a bearing shell, a bearing end cover and a composite flow controller which are sequentially connected in the axial direction, and a pre-tightening pressing ring, elastic rings and a vibration ring used for transmitting vibration motion of the bearing end cover which are arranged between the bearing base and the interior of the bearing shell in the axial direction, and the two ends of the vibration ring in the axial direction are each provided with one elastic ring; coaxial annular cylinder cavities are formed in the corresponding connecting faces of the bearing base and the bearing shell respectively, the pre-tightening pressing ring and the elastic ring are of two annular structures with the same inner diameter and the same outer diameter, and piezoelectric patches are pasted to the two axial end faces of the elastic ring respectively. According to the device, the axial vibration motion of the bearing end cover is transmitted to the elastic ring through the vibration ring, piezoelectric shunt damping is provided for the bearing through the piezoelectric patches on the elastic ring, the vibration amplitude of the bearing end cover is reduced, and the stability of the static pressure gas thrust bearing is effectively improved.

The utility model relates to the technical field of bearings, in particular to a needle bearing which comprises a mounting ring, and the inner side of the mounting ring is of an annular structure and is evenly and rotationally connected with a plurality of needle rollers. The mounting ring is fixedly arranged on the inner wall of the roller pin, the fan-shaped blocks are fixedly arranged on the inner wall of the mounting ring, the inner ends of the fan-shaped blocks are in lap joint with the outer wall of the roller pin, the cavity is formed in the fan-shaped blocks, an arc-shaped strip is arranged on the upper side of the interior of the cavity, and the lap joint strip is fixedly arranged on the lower side of the interior of the cavity; the roller pin assembly further comprises a connecting block arranged between the middles of every two adjacent roller pins, a cavity is formed in the upper side of the interior of each connecting block and keeps communicating with the cavity, and the outer wall of each connecting block is in lap joint with the outer wall of the corresponding roller pin. And the arranged connecting blocks are matched with the fan-shaped blocks, when the roller pins are abraded, stable supporting of the roller pins can be guaranteed all the time by combining the communication relation between the cavities and the cavities and utilizing displacement of the rubber blocks, it is guaranteed that the roller pins are evenly stressed, and the service life of the bearing is prolonged.

When attaching the anti-corrosion component to the raceway, the core metal prevents the covering component from getting caught between it and the raceway. [Solution] The corrosion-resistant bearing 10 includes an inner ring 11, an outer ring 12, a plurality of rolling elements, and an annular corrosion-resistant member 15 attached to one of the raceway rings, the inner ring 11 or the outer ring 12, and covering at least the cylindrical circumferential surface of the raceway ring. The corrosion-resistant member 15 includes a core metal 20 fitted into the raceway ring and an insulating covering member 30 that covers the first surface 21 of the core metal 20 on the mating member side. The core metal 20 has a second surface 22 opposite to the first surface 21, which has a press-fit surface 23 that is in close contact with the axial center of the circumferential surface of the raceway ring, and a non-press-fit surface 24 that is located axially first to the press-fit surface 23 and does not contact the circumferential surface of the raceway ring. At least the press-fit surface 23 is an exposed surface and is not covered by the covering member 30.

This invention provides a bearing ring, a bearing housing assembly, and an air conditioner thereof, which are provided with a shaft hole. A bearing seat for accommodating the bearing is provided in the shaft hole. One end of the shaft hole is a first end, and the other end is a second end. A groove is provided on the end face of the first end. The groove is located below the shaft hole and is recessed towards the second end and downward. This invention can solve the technical problem in the prior art where lubricating oil flows from the bearing ring onto the air conditioner housing, causing corrosion and cracking.

Bearing with housing (5) and means for rotatably guiding shafts (1) with a shaft collar (4) and elements for damping (2) of vibrations, wherein the elements for damping (2) are arranged between the guide means (3) and the housing (5), characterized in that the damping elements (2) are arranged on the side facing away from the shaft collar (4) between guide means (3) and a cover (5a) of the housing (5) and the damping effect is adjustable by changing the preload of the damping elements (2) in the bearing housing (5).

Systems provide damping and centering for rotating machinery. A system includes a ring encircling an axis where the ring is configured to receive a bearing element. The ring has a first axially directed face and a second axially directed face. The ring includes fluid apertures that are axially disposed and radially located outward from the axis, the fluid apertures opening through the first axially directed face and through the second axially directed face. The ring includes arcing slits, each arcing slit beginning at one of the fluid apertures and ending at another of the fluid apertures. A fluid delivery system delivers a fluid to the fluid apertures and / or the slits, at one of the axially directed faces. The fluid delivery system delivers the fluid into the arcing slits so that the fluid in the arcing slits provides a damping action in the ring.