13350results about "Bearing components" patented technology

A blood pump includes an impeller; a drive shaft coupled to the impeller and configured to rotate with the impeller; a motor configured to drive the impeller; and a bearing assembly disposed adjacent the motor and configured to receive an end of the drive shaft. The bearing assembly includes a bearing, where the end of the drive shaft is at least partially rounded, and the where the bearing includes a concave depression defined in a first side of the bearing, where the depression is configured to receive the end of the drive shaft. The bearing assembly may include a lubricant chamber configured to hold a lubricant.

A sliding component having an annular shape is disposed at a relative rotation point of a rotating machine. A plurality of dynamic pressure generation mechanisms are provided on a sliding surface of the sliding component each including a first groove portion communicating with a leak side and a pair of second groove portions and communicating with the first groove portion and extending on both sides in a circumferential direction. Extension-direction end surfaces and of the second groove portions and are disposed on a sealing target fluid side as compared with a communication portions between the first groove portion and each of the second communication portions.

An annular sliding component includes a sliding surface provided with a plurality of fluid introduction grooves communicating with a space on the side of a sealing target fluid and introducing the sealing target fluid and a plurality of inclined grooves extending from a leakage side toward the sealing target fluid and generating a dynamic pressure and the sliding surface of the sliding component is provided with at least a concave portion disposed between adjacent two of the fluid introduction grooves in the circumferential direction.

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 metal bearings, in particular to a reinforced liquid metal sliding bearing. The enhanced liquid metal sliding bearing comprises a rotor, a stator and liquid metal filled in an assembling gap between the rotor and the stator. The fixed positions of the rotor and the stator are provided with a spiral groove structure, a textured microstructure, an infiltration coating and a sealing coating. By adopting the enhanced liquid metal sliding bearing provided by the invention, the wettability and the wear resistance of a bearing rotating pair can be improved, and the problems of coating falling, wear, poor lubrication and the like of the enhanced liquid metal sliding bearing in a high-vacuum, high-temperature, high-pressure, high-speed and high-load use environment are effectively solved. High-pressure sealing is formed on the gaps between the stator and the rotor and between the limiting rings of the stator and the rotor, the liquid metal is kept in the bearing, the assembled bearing does not need a vacuum environment in the transfer process, meanwhile, external gas is prevented from entering the bearing structure, and the possibility that the liquid metal leaks or gets stuck is reduced.

A rotating assembly, adapted for supportively disposed between two surfaces of two objects so as to allow the two objects rotating with respect to each other, includes a frame body comprising a supporting turner coupled at the first object and having an inner circumferential surface and a turner frame coupled at the second object and having an outer circumferential surface and a rotor mechanism coupled between the turner frame and the supporting turner to enable the turner frame to be coaxially rotated with respect to the supporting turner, thereby enabling the second object to be rotated related to the first object.

Side channel compressor (1) for a fuel cell system (2) for compressing a gaseous medium, comprising a housing with a first housing part (3) and a second housing part (4). According to the invention, a compressor wheel assembly (10) and / or a respective bearing (19, 20) has, on its end face facing the second housing part (4), in particular a first end face (30), a cover-shaped sealing element (13) which at least almost completely covers the bearings (19, 20) and / or a bearing device (9) orthogonal to the axis of rotation (R), wherein the cover-shaped sealing element (13) is at least indirectly connected to a hub (16) in such a way that fluidic encapsulation of an interior space (27) of the hub (16) with respect to an environment (29) of the compressor wheel assembly (10) can be achieved. The invention further relates to a fuel cell system (2) with a side channel compressor (1) according to the invention.

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.

A sliding element includes a pair of sliding members having sliding surfaces that rotate and slide relative to each other. One sliding surface is provided with introduction grooves for low-speed rotation communicating with a space on a sealed fluid side, and with a dynamic pressure generation groove for high-speed rotation communicating with a space on a leakage side. The sliding surface is further provided with a groove portion disposed on the sealed fluid side with respect to the dynamic pressure generation groove and allowing a sealed fluid to flow between the introduction grooves adjacent to each other.

Example bearing lubrication system and methods of operating the same are disclosed herein. An example closed loop system to provide a lubricant to a fluid pump includes a lubrication flow network disposed within the fluid pump; a sensor fluidly coupled to the fluid pump to measure a condition of a fluid that is to enter the lubrication flow network; a first transport bus fluidly coupled to the lubrication flow network, the first transport bus to transport an inert gas; a controller to actuate a valve fluidly coupled to the first transport bus, the controller to transmit signals to the valve based on the condition of the fluid to cause the valve to open or close; and a separator fluidly coupled between an outlet of the fluid pump and the first transport bus, the separator to separate the fluid and the inert gas.

In a traditional bearing cap, the temperature of the oil-wetted surface that defines the oil sump may experience high temperatures, which can result in oil degradation, oil varnish, and coking. Accordingly, a bearing cap is disclosed that reduces the temperatures experienced by the oil-wetted surface. In particular, the bearing cap may comprise one or more air insulation cavities, between the surface that is exposed to heated air and the oil-wetted surface that defines the oil sump, to provide a thermal barrier between the two surfaces.

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.

The invention provides a radial sliding bearing with a groove-type textured surface and a friction testing method thereof.The radial sliding bearing comprises a bearing, a journal, lubricating oil and surface textures, the lubricating oil is arranged between the inner surface of the bearing and the outer surface of the journal, and the surface textures are in a groove type and are evenly distributed on the inner surface of the bearing; the shaft neck rotates around the geometric center of the shaft neck, so that lubricating oil in a bearing gap generates a fluid dynamic pressure effect to balance an external load; the centerline of the journal is parallel to the centerline of the bearing, and the film thickness of the lubricating oil in the bearing clearance is symmetrically distributed about the centerline of the bearing. According to the radial sliding bearing with the groove type textured surface and the friction testing method of the radial sliding bearing, distribution parameters and shape parameters of the surface texture are optimally designed, so that the bearing with the textured surface can obtain a more remarkable secondary fluid dynamic pressure effect, and the tribological performance of a friction pair interface of the radial sliding bearing is improved.

The invention relates to the technical field of railway vehicles, and provides a shaft sleeve structure, a wheel set, a bogie and a railway vehicle. The shaft sleeve structure comprises a first shaft sleeve and a second shaft sleeve; the first shaft sleeve and the second shaft sleeve are coaxial, are arranged on the two sides of the gearbox respectively and are suitable for being fixedly connected with the gearbox respectively. The first shaft sleeve and the second shaft sleeve are respectively provided with an axial shaft penetrating hole, and the shaft penetrating holes are suitable for penetrating an axle coaxially fixed with a wheel; the first shaft sleeve comprises a first pipe body close to the gear box and a second pipe body far away from the gear box, the second shaft sleeve comprises a second pipe body, the first pipe body is of a sleeve structure with a round inner side and a square outer side, and the second pipe body is of a round sleeve structure and is suitable for being rotationally connected to the inner side of a wheel. The axle can only transmit torque, the first shaft sleeve and the second shaft sleeve play a bearing role, the torque transmission function and the bearing function are decoupled, good bending resistance is achieved, and the safety coefficient is effectively improved.

A rotating device and a jigsaw puzzle table using the rotating device are disclosed in present disclosure. The jigsaw puzzle board includes a board assembly having a body portion and a kickstand coupled with the body portion, and at least one rotating device attached to the kickstand of the board assembly. When the kickstand is in a folded state, at least a part of the rotating device protrudes from a lower surface of the board assembly and contacted with a playing surface. The board assembly is capable of being rotated on the playing place via the rotating device. When the kickstand is in the unfolded state, the body portion and the rotating device are inclined and supported on the playing surface.

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 provided with a deep groove portion that communicates with a leakage side, and a shallow groove portion that communicates with the deep groove portion and extends in a circumferential direction.

The invention discloses an automatic ball separation riveting press applied to ball bearing assembly, which is used for improving a linear assembly line in the prior art, and is characterized in that a lower retainer is preassembled before a sleeve assembly is fed by setting a circumferential rotary assembly mode, so that when a clamping opening in which the lower retainer and the sleeve assembly are preassembled is rotated to the lower part of a ball separation assembly, the ball separation assembly rotates to the lower part of the ball separation assembly; after balls are separated through the ball separation assembly, a lower retainer is pre-installed at the bottom of the sleeving assembly through a lower retainer die holder which is jacked upwards to limit the lower ends of a plurality of balls in the sleeving assembly, a ball limiting structure does not need to be additionally arranged, and then the lower retainer pre-installed at the bottom of the sleeving assembly rotates to the upper retainer feeding assembly together. And then the upper retainer is dropped to the upper end part of the fitting assembly by the upper retainer feeding assembly to finish preassembling of the upper retainer and the lower retainer, then the upper retainer and the lower retainer are conveyed to the riveting assembly, and the riveting work is realized by utilizing a downwards-pressed riveting head, so that unified cooperation of a transmission system is realized, and the assembly process is simplified.

The invention relates to a feeding device and a hub bearing assembly line, the feeding device comprises a rack, a plurality of feeding conveying belts, a conveying conveying belt, a pushing mechanism, an adjusting mechanism and a position detecting mechanism, the feeding conveying belts and the conveying conveying belt are rotationally arranged on the rack, and the feeding conveying belts convey flanges to the feeding end of the conveying conveying belt; the pushing mechanism is used for pushing the flange to the conveying belt, the position detection mechanism is used for detecting the position of the flange on the conveying belt, and the adjusting mechanism is used for adjusting the pushing distance of the pushing mechanism according to the detection result of the position detection mechanism. When hub bearings of new types are switched to be assembled, a set of flange plates are pushed to the conveying belt through the pushing mechanism, the positions of the flange plates are detected through the position detection mechanism, then the positions of the pushing mechanism are adjusted through the adjusting mechanism, and the flange plates are located in the middle of the conveying belt after the flange plates are pushed by the pushing mechanism. And the adjustment precision is high while the adjustment is rapid.

A ceramic ball material according to an embodiment includes a spherical portion; and a band-shaped portion formed over a circumference of a surface of the spherical portion. The ceramic ball material has a ratio R1 / R2 of 0.3 or more and less than 1.0, where R1 denotes a surface roughness of an end portion of the band-shaped portion; and R2 denotes a surface roughness of a center portion of the band-shaped portion.

The invention discloses an intelligent automatic rotating European style lifting hook group, which relates to the technical field of cranes, and comprises two lifting plates, a pulley assembly arranged between the upper ends of the two lifting plates, a lifting rod arranged below the lifting plates, and a rotating assembly arranged between the lower ends of the lifting plates and used for being connected with the lifting rod. A rotating assembly used for driving the hanging rod to rotate is installed between the two hanging plates, the lower end of the hanging rod is fixedly connected with a convex block, and the position, located above the convex block, of the hanging rod is fixedly connected with a limiting baffle ring. Through the arranged scrap removing assembly, scraps generated by the rotating piece in the bearing block can be removed in the working process, the scraps are prevented from being continuously distributed in the rotating piece to participate in operation, abrasion of the rotating piece is reduced, and the service life is prolonged; and meanwhile, the arranged unhooking assembly can be used for ejecting the lifting rope out of the E-shaped lifting hook when unhooking is needed, so that automatic unhooking can be achieved, and manual unhooking operation is not needed.

To provide a linear motion guiding device that can enhance function of high-dust proof and high-hermetic sealability by improving a seal member.SOLUTION: A linear motion guiding device includes a side seal disposed between a slider and a guide rail. The side seal includes: a retainer plate disposed on a slider side; a cover disposed on a far side from the slider relative to the retainer plate; and a seal member nipped between the cover and the retainer plate along a longitudinal direction of the guide rail. The seal member includes: a body retained by the retainer plate; and a lip part extending in a flat shape toward a guide rail side from the body. A space is formed between the retainer plate and the cover and between the body and the lip part.SELECTED DRAWING: Figure 3

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.

The utility model discloses a bearing bush oil sealing structure of a sliding bearing, which comprises a shaft, a bearing bush box, a bearing bush and an air blowing chamber, the shaft penetrates through the bearing bush box, the bearing bush is arranged in the bearing bush box, a second sealing packing is arranged on the right side of the bearing bush box, and a second sealing ring is arranged on the inner side of the second sealing packing. A third sealing packing is arranged on the right side of the second sealing packing, an air sealing cavity is formed between the second sealing packing and the third sealing packing, an air guide wing is arranged in the air sealing cavity and is in a conical trumpet shape, and a trumpet-shaped large opening of the air guide wing is in threaded connection with the side face, close to the bearing bush, of the interior of the third sealing packing; a trumpet-shaped small opening of the air guide wing is obliquely opposite to the direction of the second sealing ring; the structure is simple in design and low in improvement cost, positive pressure gas is introduced into the gap between the inner ring of the sealing ring and the shaft through the blowing chamber, and the oil gas pressure in the bearing bush chamber is kept in a slightly positive pressure state, so that the oil gas can be prevented from overflowing into a motor body from the fit gap between the second sealing ring and the motor shaft.

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 utility model discloses a crossed roller bearing assembling device for a robot, and relates to the technical field of bearing assembling. The device comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with a workbench; a clamping assembly is arranged at the bottom of the workbench and comprises a motor, the motor is fixedly connected to the right side of the top of the bottom plate, the output end of the motor is fixedly connected with a rotating rod, the top of the rotating rod is fixedly connected with a transmission gear, and one side of the transmission gear is meshed with a driven gear. According to the bearing outer ring clamping and positioning device, the rotating rod can be driven to rotate through work of the motor, then the driven gear is driven to rotate through the transmission gear, the fixed plate and the clamping plate are driven to move through the sliding rod, the purpose of clamping and positioning a bearing outer ring is achieved, and meanwhile when the movable plate moves, the push rod is driven to move through the inclined block; and therefore, the purpose of clamping the outer ring and the inner ring of the bearing at the same time is achieved.

The embodiment of the invention provides a preparation method of a sliding bearing composite coating and the sliding bearing composite coating, and relates to the technical field of surface engineering.The method comprises the steps that nickel-based base coat alloy powder and copper-based alloy surface layer powder are dried; a cladding head is aligned with a to-be-cladded area of the sliding bearing, nickel-based priming layer alloy powder is evenly fed into the surface, aligned with the cladding head, of the sliding bearing through a scraping disc type pressure powder feeder on the basis of first technological parameters, the nickel-based priming layer alloy powder is molten into molten drops, and the molten drops and the surface of the sliding bearing form a micro molten pool; carrying out continuous cladding to form a nickel-based bottoming layer; and after the sliding bearing with the surface cladded with the nickel-based bottom layer is cooled, the nickel-based bottom layer is polished to be smooth, copper-based alloy surface layer powder is evenly fed into the surface of the nickel-based bottom layer through a scraping disc type pressure powder feeder on the basis of second technological parameters, and the copper-based alloy surface layer is formed on the surface of the nickel-based bottom layer through continuous cladding. And the sliding bearing clad with the composite coating is obtained. The quality can be improved.