7654results about "Bearing components" patented technology

The invention provides a bearing for an industrial robot, and belongs to the technical field of industrial robot bearings. The inner ring is arranged between the inner walls of the outer ring, and a roller path is formed in a gap between the inner ring and the outer ring; a plurality of rollers are arranged, the plurality of rollers are distributed between the inner walls of the roller path in a crossed manner, and spacing blocks are filled among the plurality of rollers; the adjusting mechanism is arranged between the outer ring and the inner ring, the multiple rollers are carried by the multiple spacer blocks to perform central radial movement in the roller path, and the multiple spacer blocks drive the multiple rollers to be uniformly dispersed between the inner walls of the roller path, so that the multiple spacer blocks perform central axial distribution adjustment in the roller path, and the gap positions between the rollers are adjusted; and the rollers are connected to the inner ring and are better attached to the outer ring, so that a roller path is fully filled, the outer ring and the inner ring are radially coaxial, and high-decibel noise generated by collision and friction of the outer ring and the inner ring during high-speed rotation when the outer ring and the inner ring of the bearing rotate at a high speed is avoided.

The invention relates to the technical field of bearings, and particularly discloses a high-precision cylindrical roller bearing for an industrial robot, the high-precision cylindrical roller bearing comprises a first shaft sleeve, a second shaft sleeve and a spacer bush, the first shaft sleeve and the second shaft sleeve are located on the inner side and the outer side of the spacer bush respectively, a roller is arranged on the surface of the spacer bush, and the outer surface of the roller is in rotating contact with the first shaft sleeve and the second shaft sleeve respectively; and a compensation assembly is arranged on the inner side of the spacer bush and comprises a guide groove formed in the inner side of the spacer bush, a movable frame is slidably connected to the inner side of the guide groove, and a movable plate is fixedly connected to the outer surface of the movable frame. By arranging the compensation assembly, when the lubricating wheel is abraded, the movable frame moves towards one side close to the roller under the elastic force action of the double metal plates, and the reciprocating lead screw drives the lubricating wheel to synchronously move, so that the lubricating wheel is always attached to the surface of the roller, and a good lubricating effect can be continuously achieved on the bearing; and the influence of abrasion of the lubricating wheel on the lubricating effect of the bearing is reduced.

A hybrid lubricating module includes a housing and an assembly which consists of at least two elements and has an axial hole run through by a shaft. At least one of the elements has one set of multiple notches on one end surface communicating with the axle hole. The housing has a through axial cavity to encase the assembly. The outer wall surface of the assembly and the inner wall surface of the housing are assembled to each other to form at least one storage chamber to store lubricating media. The multiple notches on at least one adjacent element form at least one set of fine flow passages communicating with the axial hole and the storage chamber.

An annular sliding component is one of two sliding rings that rotate relative to each other and partition a sealed fluid space and a leakage space, the sliding component includes a dynamic pressure generating groove that generates a dynamic pressure, and includes an inclined groove which extends from the leakage space toward the sealed fluid space with an inclination in a forward rotation direction and has a first dynamic pressure generating end portion and a reverse groove which extends from a backward rotation direction side of the inclined groove in a backward rotation direction and has a second dynamic pressure generating end portion.

There is provided a sliding component that supplies a sealed fluid to a leakage side in a gap between sliding surfaces to exhibit high lubricity and has a small leakage of the sealed fluid. A sliding component that has an annular shape and is disposed in a place where relative rotation is performed in a rotary machine, includes a plurality of dynamic pressure generating mechanisms provided in a sliding surface of the sliding component, each of the dynamic pressure generating mechanisms including a deep groove portion that communicates with a leakage side, and a plurality of shallow groove portions that communicate with the deep groove portion and are arranged in a circumferential direction in parallel relationship to each other.

An electromechanical joint provides rotational movement in at least two dimensions while conducting electrical power between orthogonal hubs. The joint, shaped as a cross, has four conical shafts positioned orthogonally and apart from each other within an interior of a housing. Apexes of the conical shafts face each other proximate a centroid of the housing. A conductive fluid, such as Galinstan, fills recesses between the conical shafts. Separate yokes attached to pairs of the hubs may impart forces on the shafts, causing the shafts to rotate within the conductive fluid around orthogonal axes. The conductive fluid provides simultaneous conduction of electrical power between the hubs. The yokes may be affixed respectively to a current collector and conductive arms of a work machine for improved movement and power conduction without the need for additional components.

A hub motor includes a housing rotatably disposed to a first shaft and a second shaft, and a motor installed in the housing and having a stator and a rotor. A reduction mechanism is installed in the housing, including a gear shaft connected with the rotor, a fixed bracket connected with the stator, a movable bracket disposed on the gear shaft and the second shaft, a first ring gear disposed to the fixed bracket, a second ring gear disposed to the housing, multiple first planet gears disposed to the movable bracket and meshed with the gear shaft and the first ring gear, and multiple second planet gears disposed to the second shaft and meshed with the movable bracket and the second ring gear. By 10 inserting a hollow tube into the first shaft, the gear shaft, the movable bracket, and the second shaft, the waterproof and dustproof performance can be enhanced.

The invention discloses a plane thrust segmented retainer and a bearing, and relates to the field of bearings, the plane thrust segmented retainer comprises at least two retainer segments, each retainer segment is provided with a plurality of windows, and the adjacent windows are separated by cross beams; first stop blocks are symmetrically arranged on the mounting surface of the window, second stop blocks are symmetrically arranged on the inner walls of the two sides of the window, the first stop blocks are used for wrapping the upper half section of the roller, and the second stop blocks are used for wrapping the lower half section of the roller. The rollers are wrapped by the first check blocks and the second check blocks which are arranged on the windows, the failure phenomenon caused by collision is avoided, and the service life of the retainer and the service life of the bearing can be prolonged.

The invention provides a high-precision mute bearing for an industrial robot, which is suitable for the technical field of bearings and comprises a steel ball frame assembly, and the steel ball frame assembly comprises a steel ball retainer and steel balls; the steel ball retainer comprises a positioning ring structure and a plurality of unit steel ball retainers, and the unit steel ball retainers are distributed on the positioning ring structure in an annular array; the steel balls are correspondingly and rotationally assembled on the unit steel ball retainers; the positioning ring structure comprises a positioning ring, a plurality of adjusting grooves are formed in the positioning ring, and the unit steel ball retainers are slidably mounted in the adjusting grooves in a one-to-one correspondence manner; the unit steel ball retainers finish the distance adjustment among the plurality of unit steel ball retainers through the positions of the telescopic structures arranged on the unit steel ball retainers in the adjusting grooves, and are used for adjusting the structures to adapt to the supporting strength; an adaptive adjusting structure adapts to the supporting strength, the bearing is prevented from being damaged easily, and the service life is prolonged; and the structure is switched timely for rotating use and hovering, and the structure is adjusted flexibly and reasonably according to force bearing points.

The invention discloses a gap-controllable retainer and a frictional resistance measuring method thereof, belongs to the technical field of mechanical equipment manufacturing, and solves the problem that an existing device can only test a retainer with a fixed gap and cannot simulate the influence of dynamic gap change on bearing performance. The retainer capable of controlling the gap comprises a retainer body capable of adjusting the gap between the retainer body and a rolling body, a retainer moving assembly and a gap adjusting part. The gap adjusting part comprises an adjusting motor, an eccentric wheel and a motor fixing frame. According to the retainer capable of controlling the gap, the gap between the retainer and a rolling body can be dynamically adjusted, the retainer can be matched with different types of ball-disc testing machines (rotary type and linear contact type) for friction resistance measurement, the gap between the rolling body and a pocket of the retainer can be flexibly adjusted by adjusting the motor and the eccentric wheel, and the friction resistance of the rolling body is measured. And therefore, the retainer main body can meet the retaining and limiting requirements of different working conditions and different types of bearings, and the performance, the service life and the reliability of the bearings are remarkably improved.

There are provided sliding components that allow sliding surfaces to smoothly slide against each other regardless of whether a relative rotation direction is a forward rotation or a reverse rotation. The sliding components and include: a pair of sliding surfaces and disposed to face each other at a location where a relative rotation takes place when a rotating machine is driven. The sliding surface is provided with a first dynamic pressure generating groove communicating with a radially outer-side space and extending in one circumferential direction, a second dynamic pressure generating groove extending in the opposed circumferential direction, and a conduit groove communicating with the space. The conduit groove includes an annular groove and a communication groove communicating between the annular groove and the space. The second dynamic pressure generating groove is disposed closer to the space than the annular groove, and communicates with the annular groove.

The invention relates to the technical field of magnetic suspension bearings, and provides a magnetic leakage prevention bearing structure which comprises a flux sleeve, a shell, a magnetic part, an inner-layer magnet yoke and an outer-layer magnet yoke. The shell is sleeved outside the flux sleeve, and an inner ring of the shell is provided with a mounting space; the magnetic part is arranged in the mounting space; the inner-layer magnet yoke is arranged in the mounting space and connected with the shell, the inner-layer magnet yoke is concaved inwards to form a first containing groove, and the magnetic part is contained in the first containing groove; the outer-layer magnet yoke is arranged in the installation space and connected with the shell, the outer-layer magnet yoke is concaved inwards to form a second containing groove, and the inner-layer magnet yoke is contained in the second containing groove. A closed magnetic circuit is formed through a double-layer magnet yoke nested structure, the axial magnetic shielding layer design is matched, magnetic flux leakage is effectively restrained, the magnetic field energy utilization rate is increased, electromagnetic interference to external equipment is reduced, and meanwhile the bearing performance and operation stability of the bearing are remarkably improved by optimizing magnet yoke thickness distribution and the permanent magnet arrangement mode.

The invention discloses a high-carbon high-alloy grinding ball steel rolling internal damage control method, and belongs to the technical field of metal material rolling machining. Comprising the following steps that high-carbon high-alloy grinding ball steel billets are subjected to high-temperature diffusion homogenization treatment and then subjected to staged temperature control rolling, the initial rolling temperature in the blooming stage is 1020-1080 DEG C, the single-pass reduction rate is 6-10%, the pass interval is larger than or equal to 20 seconds, the total reduction rate is 40-80%, and the core peak temperature is controlled to be smaller than or equal to 1150 DEG C; the finish rolling temperature is 800-850 DEG C; during rolling, atomized water is sprayed for dynamic cooling every 2-3 passes, and two-stage cooling (water cooling to 600-650 DEG C at 15-20 DEG C / s, and slow cooling to room temperature) is carried out after final rolling. According to the method, element diffusion, temperature rise inhibition and structure refinement are synergistically regulated and controlled, so that the core void ratio is reduced, the austenite grain size is larger than or equal to 8 grades, a uniform bainite and dispersed carbide composite structure is obtained, and the anti-fatigue performance of the grinding ball steel is remarkably improved.

The utility model relates to the technical field of bearing fitting equipment, in particular to full ball angular contact ball bearing fitting equipment which comprises a workbench, supporting columns fixedly sleeve four corners of the workbench, the bottoms of the supporting columns penetrate through the workbench and extend to the lower portion of the workbench, the tops of the supporting columns are connected with a supporting plate, a bearing seat is detachably embedded in the workbench, and the bearing seat is connected with the workbench. A center hole is formed in the bearing seat, the center hole is a three-section type stepped hole with the small middle and the two large ends, the center hole comprises a first stepped hole, a second stepped hole and a third stepped hole, a core shaft is movably arranged in the center hole, an inner ring containing boss is fixedly installed at the top of the core shaft, and an outer ring containing position is formed between the core shaft and the first stepped hole. The mandrel is in sliding fit with the second stepped hole, an elastic supporting assembly is arranged in the third stepped hole, and a pressing assembly is arranged on the supporting plate. The assembling device is simple in structure, convenient to operate, low in manufacturing cost, high in assembling efficiency and high in assembling quality.

The invention discloses a bearing lubrication management system, which comprises a sensor module, a data acquisition unit, a rear-end server, an oil injection control unit and a terminal, and relates to the technical field of bearing lubrication. According to the bearing lubrication management system, lubrication state data in bearing operation are obtained through the shock wave / impact pulse technology and uploaded to the server software platform to be intelligently analyzed, whether oil injection is needed or not and the oil injection amount are judged, the oil injector is remotely controlled to execute the lubrication action, and scientific and refined lubrication management is achieved.

An X-ray bulb tube adopting a liquid metal bearing comprises a shell defining a containing cavity, and the shell is provided with a first side and a second side which are opposite in the first direction; the anode target is arranged in the accommodating cavity; the middle shaft part extends in the first direction and is provided with a first end and a second end which are opposite; the outer shaft part is arranged on the first matching section of the middle shaft part in a sleeving mode and can rotate with the middle shaft part as the axis, the second end is located on the first matching section, a non-zero first gap is formed between the inner wall of the outer shaft part and the peripheral face of the first matching section, the first gap forms at least one part of a filling cavity, and the filling cavity is filled with liquid metal; the first matching section, the outer shaft part and the liquid metal in the filling cavity are matched to form a liquid metal bearing; the middle shaft part is sleeved with the supporting part, the supporting part is fixedly connected with the outer shaft part and synchronously rotates along with the outer shaft part, and at least one part of the supporting part selectively abuts against the middle shaft part along with the rotating speed of the outer shaft part. Therefore, the X-ray bulb tube is lower in abrasion and longer in service life.

The invention discloses an axial ring lower lubricating structure and an aero-engine with the axial ring lower lubricating structure. The axial ring lower lubricating structure comprises a switching oil distribution device, a connecting bearing arranged on the outer circle of the switching oil distribution device and a plurality of oil supply nozzles. The first end of the switching oil distribution device is provided with an oil distribution cavity, the spline section behind the first end of the switching oil distribution device is provided with an inner spline, and an inclined oil conveying channel set and an axial oil conveying channel set are further arranged in the spline section. The oil supply nozzles are used for spraying lubricating oil into the oil distribution cavities, and the oil distribution cavities are used for distributing the lubricating oil so that the lubricating oil can correspondingly enter the oblique oil conveying channel set and the axial oil conveying channel set under the rotating centrifugal effect, and the lubricating oil in the oblique oil conveying channel set can continue to enter the connecting bearing for lubrication under the rotating centrifugal effect. And lubricating oil in the axial oil conveying channel group continues to enter the inner spline for lubrication under the rotating centrifugal effect. According to the structure, the whole lubricating oil system is compact in flow path structure, high in reliability, high in lubricating efficiency and high in function integration degree, and the lubricating and cooling problems of high-DN-value bearings and splines of aero-engines are effectively solved.

The invention discloses an I-shaped common-edge segmented assembly type bearing retainer. The I-shaped common-edge segmented assembly type bearing retainer comprises a plurality of segmented retainer elements and spliced window elements, each segmented retainer element is composed of two arc-shaped segments and a connecting window body between the two arc-shaped segments, semi-open window holes with single-side openings are formed in the two ends of each segmented retainer element, and splicing grooves are formed in the two ends of each arc-shaped segment; the adjacent sectional holder elements are connected through the spliced window body elements, so that the semi-open window holes are divided into independent closed window holes, and collision abrasion between adjacent arc-shaped sectional end window bodies is avoided. Due to the I-shaped common-edge design, the segmented retainer elements can share one part of window structures during assembly, namely window parts of adjacent elements are overlapped instead of being arranged side by side, so that space is saved, space possibility is provided for increasing the number of rolling bodies, and the bearing capacity and the running stability of the bearing are improved.

The invention discloses a rotary sealing assembly, a hub bearing assembly, a tire and a vehicle. The rotary sealing assembly comprises a rotary ring, a first sealing ring and a second sealing ring, the fixed ring is coaxially opposite to the rotating ring and is provided with a second air channel; the sealing piece comprises an inner sealing ring and an outer sealing ring which are arranged between the rotating ring and the fixed ring, the rotating ring, the fixed ring, the inner sealing ring and the outer sealing ring define an air cavity, and the first air channel and the second air channel are communicated through the air cavity. According to the technical scheme, when the rotating ring and the wheel rotate synchronously, the first air channel in the rotating ring can be connected with the interior of a tire, the second air channel in the fixed ring can be connected with an air source, the sealing piece can form a closed air cavity between the first air channel and the second air channel, and the air cavity is simple in structure, convenient to manufacture and capable of providing good air tightness; and it is guaranteed that inflation and deflation adjustment operation in the tire is stable and reliable when the wheel rotates.

Provided is a tapered roller bearing (1) for which a dimensionless number X is defined by the following formula (1) based on a small-diameter-side gap S1 which is a gap between a small-diameter-side annular part (6) of a retainer (5) and a small collar part (2b) of an inner ring (2), a large-diameter-side gap S2 which is a gap between the large-diameter-side annular part (7) and a large collar part (2c) of the inner ring (2), an average roller diameter d, a roller length l, and an outer member angle α. The dimensionless number X falls within a range of 0.69<X<1.12.

A crossed roller bearing and an isolation block belong to the technical field of bearings, and are characterized in that oil storage holes are respectively formed in the centers of contact surfaces of two rollers; the four vertical surfaces are respectively provided with a guide oil groove, and the guide oil grooves extend and penetrate through the whole thickness of the corresponding vertical surfaces; and an included angle is formed between the extending direction of the guide oil groove and the central axis of the isolation block, so that a pumping effect is generated when the roller rotates, and lubricating grease is promoted to flow in the guide oil groove. The internal grease storage space of the bearing is optimized, and the internal lubrication state is greatly improved.

The invention provides an innovative design of a corrugated pipe damper integrated on a sliding main bearing aiming at the problems of transmission system abrasion and fatigue damage caused by vibration energy accumulation of the wind power main bearing under a complex wind load, and belongs to the technical field of wind power generation equipment. A traditional main bearing damping structure is low in energy absorption efficiency, insufficient in dynamic response and difficult to effectively suppress vibration. Through collaborative design of a corrugated pipe multi-stage laminated structure and a fluid energy dissipation channel, a composite mechanism for dynamically dissipating vibration energy is formed. The core of the damping device is composed of a corrugated pipe assembly, damping cavities and a main shaft adaptive structure, impact energy is absorbed through axial flexible deformation of the corrugated pipe, vibration attenuation is achieved in combination with reciprocating flowing of damping fluid in the multiple cavities, and low-frequency swing and high-frequency harmonic waves of a main bearing are synchronously restrained. According to the design, the bearing capacity is guaranteed, vibration transmission is remarkably reduced, the service life of the main bearing is effectively prolonged, the operation reliability of a unit is improved, and the damping requirement of a core transmission system of a high-power wind turbine generator is met.

The utility model discloses a sealing type slewing bearing which comprises an inner ring and an outer ring which are arranged from inside to outside, a plurality of balls are arranged between the inner ring and the outer ring, the end face of the inner ring is higher than the end face of the outer ring, a sealing ring is arranged on the side face of the inner ring, and the inner ring and the outer ring are arranged in parallel. An annular protrusion is formed on the lower end face of the sealing ring, the end face of the outer ring is sunken downwards to form an annular groove, the annular protrusion is rotatably clamped in the annular groove, a gap exists between the lower end face of the sealing ring and the end face of the outer ring, and a rubber ring with a U-shaped section is detachably arranged at the end of the sealing ring. The problems that in the prior art, a rubber ring is arranged on the surface of a slewing bearing, one end of the rubber ring is clamped to the side face of an inner ring, the other end of the rubber ring is attached to the end face of an outer ring, after long-time use, the elasticity of the sealing rubber ring is reduced, the end of the rubber ring is prone to upwarp, and the sealing performance is reduced are solved.

A bearing seal provides a first sealing member to be secured to a shoulder on one side of a first bearing ring and a second sealing member that can be secured to a shoulder on the same side of a second bearing ring. A labyrinth seal gap is formed between the first sealing member and the second sealing member, which has at least one tooth-shaped turn. On the basis of the above bearing seal, the present invention further provides a rolling bearing that employs the bearing seal on an axial side thereof.

The composite material wear-resistant segmented bearing retainer comprises a plurality of segments of retainer segmented assemblies, and each retainer segmented assembly is composed of two annular parts with radians and a plurality of window beams which are evenly spaced and connected with the two annular parts. First protrusions protruding out of the end faces are arranged on the upper surfaces and the lower surfaces of window beams at the two ends of the retainer segment assembly, second protrusions protruding out of the inner diameter surface and the outer diameter surface are arranged on the inner diameter walls and the outer diameter walls of annular parts at the two ends, the direct contact area of the retainer and the inner ring and the outer ring of the bearing is reduced, load dispersion is facilitated, abrasion is relieved, and the service life is prolonged. By adopting the local contact design, the retainer can more effectively cope with complex load conditions in the operation of the wind driven generator, even if the contact cannot be completely avoided, the abrasion degree can be obviously reduced by reducing the contact area and dispersing the load, the wear resistance of the retainer is improved, the service life of the retainer is prolonged, and the service life of the retainer is prolonged. And a powerful guarantee is provided for stable operation of the wind driven generator.

Apparatuses, systems, methods, and / or the like are provided for a transfer apparatus. An example transfer apparatus includes a bed having a first plurality of balls and a second plurality of balls having a first and second diameter, respectively, and wherein at least one of the first plurality of balls and at least one of the second plurality of balls are configured to rotate relative to the bed, wherein at least one belt of the plurality of belts is operably engaged with the at least one ball of the first plurality of balls or the at least one ball of the second plurality of balls; and a driver operably connected to the at least one belt of the plurality of belts, wherein the driver is configured to power the at least one belt of the plurality of belts.

A wheel of the present disclosure includes a barrel holder, barrel support shafts, barrels, and bearings. The barrel holder is rotationally driven. The barrel support shafts arranged on the circumference of the barrel holder at an angle to a rotation axis of the barrel holder. The barrels are barrel-shaped rotating bodies. The barrels are rotatably supported on the corresponding barrel support shafts, and outer surfaces of the barrels contact a surface on which the wheel travels as the barrel holder rotates. The bearing supports the retainer. A groove is formed at least in a region of the outer circumferential surface of the barrel support shaft extending in the axial direction and including a radially inner projected area of the retainer.

A rolling element retainer, a slide member and a limited-stroke linear guide are disclosed. Rolling elements are placed in the rolling element retainer to form the slide member. The slide member is disposed between two fixed-length rails to form the limited-stroke linear guide. The rolling element retainer includes a body, a plurality of accommodating holes distributed on the body for accommodating rolling element, and a plurality of apertures formed on the body and located between the accommodating holes. Lubricants are stored in the apertures, which can provide lubrication when the rolling elements roll. The body has a polygonal profile and at least four protruding portions protruding away from the body. The protruding portions extend continuously across all the adjacent accommodating holes. In this way, the rolling element retainer has better rigidity and more accommodating holes to accommodate more rolling elements, thereby improving the load capacity of the limited-stroke linear guide.

Carbon fiber for a sliding material that exhibits satisfactory sliding properties and the like without damaging a mating material when the carbon fiber for a sliding material is produced into a sliding member by predetermined processing by way of a resin composition for a sliding material including a predetermined uncarbonized carbon fiber, and a method for efficiently producing such carbon fiber for a sliding material, are provided.Disclosed is carbon fiber for a sliding material to be blended into a resin composition for a sliding material that is formed into a sliding member by predetermined processing, in which a 5% weight loss temperature of the carbon fiber for a sliding material as determined by thermogravimetry has a value within a range of 400 to 550° C.