8886results about "Shafts" patented technology

A blood flow assist system can include an impeller assembly including an impeller shaft and an impeller on the impeller shaft, a primary flow pathway disposed along an exterior surface of the impeller. The system can include a rotor assembly at a proximal portion of the impeller shaft. A secondary flow pathway can be disposed along a lumen of the impeller shaft. During operation of the blood flow assist system, blood can be pumped proximally along the primary flow pathway and the secondary flow pathway. The system can include a sleeve bearing distal the impeller. The system can include a drive unit having a distal end disposed distal a proximal end of the second impeller. The drive unit comprising a drive magnet and a drive bearing between the drive magnet and the impeller assembly.

A folding mechanism, where a first housing seat is provided on a first screen supporting plate, and the first screen supporting plate is rotatably fitted with the first housing seat; a second housing seat is provided on a second screen supporting plate, and the second screen supporting plate is rotatably fitted with the second housing seat; the first housing seat and the first screen supporting plate are arranged on a first side of a base, and the second housing seat and the second screen supporting plate are arranged on a second side of the base, the first side and the second side being arranged facing away from each other.

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.

A rotating shaft apparatus includes: a support assembly, including a side support member; a rotating assembly, including a rotating member and a connecting member, the rotating member is rotatably connected to the connecting member, and the side support member is rotatably connected to the connecting member; and a linkage assembly, including a linkage member, the linkage member is slidably connected to the connecting member; the side support member and the rotating member are connected to each other through a cooperation of a sliding-guiding portion and a sliding-limiting groove, the side support member and the linkage member are connected to each other through a cooperation of a sliding-stopping groove and a position-stopping portion, or the side support member and the rotating member are connected to each other through the cooperation of the sliding-stopping groove and the position-stopping portion.

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 bearing device includes first and second rings each having end faces and being configured to rotate relative to one another, and the second ring has an annular groove. A socket having an electrically insulating sleeve is mounted on the second ring with the insulating lining radially interposed between the second ring and the socket. End faces of the electrically insulating lining each have an annular groove with a bottom that is offset axially inward relative to the respective first and second end faces of the second ring and to the respective first and second end faces of the socket. A method includes grinding end faces of the socket and / or second ring to reduce an axial depth of the grooves in the insulating layer.

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 discloses a three-degree-of-freedom permanent magnet biased magnetic bearing which comprises a rotor system, a radial magnetic bearing stator system and an axial magnetic bearing stator system. The rotor system comprises a rotor, a radial magnetizing permanent magnet ring and a magnetic conducting ring; the radial magnetic bearing stator system comprises a radial stator iron core, a magnetism isolating ring and a radial coil winding; the axial magnetic bearing stator system comprises a sheet-shaped arc-shaped radial magnetizing permanent magnet, an axial stator iron core and an axial coil winding; according to the three-degree-of-freedom permanent magnet biased magnetic bearing, the axial magnetic bearing stator surrounds the periphery of the rotor and is in the same plane with the radial magnetic bearing stator, so that the axial length of the magnetic bearing is reduced, and the structure is compact; radial two-degree-of-freedom translation control and axial translation control can be realized; magnetic isolation rings are additionally arranged among the radial stator iron cores, so that decoupling of a magnetic circuit controlled by two radial channels of an x axis and a y axis is realized; the two radial channels are biased by independent permanent magnets, so that the decoupling of a biased magnetic circuit is realized, and the influence of air gap magnetic resistance change is weakened; and the second air gap is arranged, so that the axial control magnetic circuit does not pass through the permanent magnet ring, and the power consumption of the magnetic bearing is further reduced.

A device can include a housing that comprises a front side that includes a display operatively coupled to display circuitry and a back side that comprises a ferromagnetic surface, a hinge assembly, and a recess; and a ferromagnetic panel transitionable via the hinge assembly from a storage position in the recess to a bridge position that covers the ferromagnetic surface.

A hybrid airfoil bearing for a shaft is provided and includes airfoil bearing components and passive magnetic bearing components. The airfoil bearing components include a top foil immediately surrounding the shaft and additional components. The passive magnetic bearing components are integrated into the shaft and the additional components of the airfoil bearing components to remove a static load of the shaft on the top foil.

A blood pump includes an impeller; a drive shaft coupled to the impeller and configured to rotate with the impeller; and a rotor coupled to the drive shaft and configured to rotate with the drive shaft. The rotor includes a driven magnet having an outer surface. A corrosion-resistant coating may be disposed on the outer surface of the driven magnet. A stator is disposed adjacent the rotor and configured to drive the rotor, causing the rotor to rotate; and a motor is configured to drive the stator. A protection assembly may be disposed adjacent the stator and configured to receive an end of the drive shaft, and may include a protection assembly housing enclosing a protective fluid chamber, the protective fluid chamber including the driven magnet and at least a portion of a bearing configured to engage the end of the drive shaft.

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.

A cleaner including a suction head; a main body; and a motor to form a suction airflow from the suction head to the main body. The motor includes a stator; a rotor; and an impeller coupled to the rotor and configured to generate an airflow by being rotated. The motor includes a housing that includes a base portion including a receiving space provided to accommodate the rotor and the stator; and a cover portion including a through-hole through which the rotor passes, the cover portion provided to cover the impeller. The base portion includes a bearing hole formed in an upper portion of the base portion to install a bearing provided to support the rotor; and a stator insertion hole formed to be open on a lateral side of the base portion to allow the stator to be inserted into the receiving space.

Vehicles and systems and methods for health monitoring drive unit bearings in vehicles are provided. A system for health monitoring a drive unit bearing in a vehicle includes a sensor mounted to a drive unit of the vehicle and configured to provide a vibration signal; and a processor configured to: pre-process the vibration signal from the sensor to enhance a fault signature and form a frequency domain signal; and process the frequency domain signal to estimate a health stage of the drive unit bearing.

A power tool is provided including a housing having a grip portion with a grip circumference of smaller than or equal to approximately 120 mm; and a brushless direct-current (BLDC) motor at least partially disposed within the grip portion of the housing and configured to output a maximum power output of at least 450 watts. The motor includes a stator including a stator core and stator windings; and a rotor rotatably received within the stator and including a rotor shaft extending along a longitudinal axis and a series of permanent magnet rings mounted sequentially along the longitudinal axis and surrounding the rotor shaft, each permanent magnet including a plurality of magnetic poles.

The invention relates to the technical field of bearings, and discloses a ceramic angular contact ball bearing with high bearing capacity, the ceramic angular contact ball bearing comprises an outer ring, an inner ring, a rolling body, a retainer and an oil storage cavity, the outer ring is of a cylindrical structure, and the inner surface of the outer ring is in contact with the rolling body; the inner ring is positioned inside the outer ring, and the outer surface of the inner ring is contacted with the rolling body; and the rolling bodies are a plurality of spherical ceramic elements which are fixed and separated by the retainer. By optimizing the arrangement mode and material selection of the rolling bodies, the bearing has higher bearing capacity and anti-overturning performance under the high-load condition; the heat dissipation through holes are formed in the retainer, so that the heat dissipation performance of the bearing in the running process is remarkably improved, and the bearing failure risk caused by overheating is reduced; through the design of the oil storage cavity and the oil outlet micropores matched with the oil storage cavity, uniform supply of lubricating oil is achieved, and friction loss between the rolling body and the inner ring and the outer ring is reduced.

According to various embodiments, an electronic device includes a first housing; a second housing; at least one hinge device configured to foldably couple the first housing and the second housing with respect to a folding axis, wherein the at least one hinge device includes a rotation bracket link; a first rotation bracket rotatably coupled to the rotation bracket link and connected to the first housing; a second rotation bracket rotatably coupled to the rotation bracket link and connected to the second housing; at least one hinge device including a first arm coupled to the first rotation bracket and a second arm coupled to the second rotation bracket; a flexible display disposed to receive support from the first housing, the second housing, and the hinge device; and a first plate and second plate disposed under the flexible display, wherein the first arm and the second arm have the second plate and a support area for supporting the second plate when the electronic device is in an unfolded state.

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 linear guide unit with a profiled body, the profiled body having a base plate with an upper side and a bottom side, and a movement unit which has a carriage and which has a guiding unit with a first guiding module located on the carriage and a second guiding module. The movement unit is mounted on the profiled body so as to be linearly movable in the longitudinal direction. A first mounting extension and a second mounting extension project from the bottom side, in which a first support surface of the first mounting extension and a second support surface of the second mounting extension project from the bottom side in a direction opposite to a vertical direction, a first clamping surface being provided on the first mounting extension and a second clamping surface being provided on the second mounting extension.

An electronic assembly includes a shaft assembly and housings arranged oppositely. The shaft assembly includes a first shaft case, first rotating members, and rotating units. The first rotating members are at least partially disposed at two opposite sides of the first shaft case. Each of the first rotating members has one end rotatably connected with the first shaft case and the other end connected with the housings. The rotating units are at least partially disposed at the two opposite sides of the first shaft case. Each of the rotating units includes a second rotating member and a movable plate. The second rotating member has one end rotatably connected with the first shaft case and the other end connected with the movable plate. The movable plate has one end connected to the housings.

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 present invention relates to a slide system (1) comprising a first slide member (10) having a slide surface (14) at least partly coated with a lipophilic composition coating (18) to provide a slide layer (19) with lowered friction, and a second slide member (20) arranged in sliding contact with the slide layer (19) at an interface to provide a slide system (1). The interface between the slide layer (19) and the second slide member (20) forms a plain bearing to allow for sliding movement of the second slide member (20) relative to the first slide member (10). At least the slide surface (14) of the first slide member (10) is made of a first plastic, and at least a part of said second slide member (20) being in sliding contact with the slide layer (19) is made of a second plastic. The first and the second plastics are different plastics. The invention further relates to a method for providing said slide system (1).

Embodiments of the present disclosure describe a snowmobile including an engine mounted on the chassis, a drive track in contact with the chassis, and a drive train, operatively interconnecting the engine with the drive track for delivering propulsive power to the drive track. The drive train includes a driveshaft, comprising a tubular driveshaft including two or more interior channels, the channels positioned in a substantially longitudinal orientation, two or more sprocket driving features on an exterior surface of the tubular driveshaft, and one or more fitting components, positioned at one or more distal ends of the driveshaft.

The invention discloses an automobile transmission shaft with a kinetic energy recovery function, and relates to the technical field of vehicle transmission. The problem of torque transmission vibration energy recovery is solved. The driving shaft is in transmission connection with a vehicle driving source, the driven shaft is in transmission connection with a vehicle driving wheel, the transition shaft is used for being in transmission connection with the driving shaft and the driven shaft, and the energy recovery part is fixed to a vehicle body. The opposite sides of the driving shaft and the transition shaft are each provided with a set of pawls. The driving shaft and the transition shaft are arranged, the driving shaft and the transition shaft are meshed and matched through the pawls, meanwhile, energy conversion is conducted through piezoelectric ceramics, so that second-order vibration energy in the forklift driving or forklift driving process can be absorbed and converted, energy recovery is achieved, meanwhile, a rubber cushion block is arranged, on one hand, vibration buffering can be conducted to a certain degree, and on the other hand, the energy recovery efficiency is improved. And on the other hand, the piezoelectric ceramics can be prevented from being damaged when being driven by a relatively large torque.

The invention discloses a thin-wall tubular shaft part turning wall thickness difference control method. When a thin-wall tubular shaft part is machined, the thin-wall tubular shaft part is machined according to the following steps that S1, rough machining is conducted on a blank; s2, solid solution aging; s3, rough machining of an inner hole; s4, stabilizing treatment; s5, finish machining of the inner hole; s6, outer circle rough machining; s7, finish machining of the outer circle; s8, milling a key groove; s9, deburring is conducted; s10, inspection is carried out; in the step S5 and the step S7, a plurality of positioning points are arranged on the surface of the part through a differential method and a segmented programming method, a whole cylindrical surface is averagely divided into a plurality of smaller cylindrical surfaces through the positioning points, and wall thickness measurement is carried out every time a section of cylindrical surface is machined. And the feed amount of the next section is adjusted according to the measurement result to ensure that the wall thickness difference is within a reasonable tolerance range. According to the novel wall thickness difference turning control method, adjustment can be conducted in the machining process to ensure that the size is qualified, follow-up local finishing is not needed any more, and the machining precision is better guaranteed.

A spherical ball joint has an outer ring 2 of a nickel based material with a carbonitriding layer on a spherical inner surface 2a sliding on an inner ring 3 of a cobalt-based or nickel-based material

Methods, systems, devices, and products for use in a pole support system. Apparatus include a hinge joint comprising: a base having an insertion end with a longitudinal slot and with a fulcrum protrusion on an inner surface; a cup having a receiving end selectively receiving the insertion end of the base; a securing assembly configured to selectively release the cup from the base, the securing assembly comprising a rotatable shaft that translates along the longitudinal slot between at least i) a lower relative position corresponding to an engaged state in which the insertion end is received by the receiving end, and ii) an upper relative position corresponding to a released state in which the insertion end is free of the receiving end; the shaft having a cam projection positioned to contact against the fulcrum protrusion and displace the shaft toward the upper relative position when the shaft is rotated.

A magnetic bearing system (100) includes a rotary shaft (101) and a magnetic bearing (105, 107, 130) having an electromagnet coil (106, 108, 108B, 135, 136). One end of the electromagnet coil (106, 108, 108B, 135, 136) is connected to the neutral point of a first multi-phase winding (113, 115, 123, 125, 173, 181) having at least three or more phases.

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.