3129 results about "Plain bearing" patented technology

The torque tool comprises a torque converter including three planet carriers which encase three planetary gears. Each of the three planetary gears includes a sun gear and three planet pinions. Each of the three planet carriers has an input disc-shaped plate, directed towards an input shaft of the torque tool and an output disc-shaped plate directed towards an output shaft of the torque tool. The input and output shafts constitute the main shafts of the torque tool. Two of the three planet carriers, which are next to the input shaft, have their output disc-shaped plates extending into sun gears with which they form unitary structures. A stepped pin is centrally disposed in a needle bearing of a first sun gear adjacent the input shaft and extends through sliding bearings located in the following sun gears. A first large diameter of the stepped pin is commensurate with an interior diameter of the needle bearing and a second small diameter of the stepped pin is commensurate with interior equal diameters of the sliding bearings inserted in the following sun gears. The planet pinions of one of the three planet gears, which is adjacent to the output gear, arc each provided with a multiplicity of roll needles closely spaced together, the multiplicity of roll needles being inserted between each of the at least three planet gears and an axle for supporting.

A planetary gear mechanism for a wind power plant includes a sun gear, an internal gear and a planetary carrier with planetary gears supported by radial and axial slide bearings. The radial slide bearings include a sleeve made of a slide bearing material and attached as an inner ring to a planetary gear shaft or mounted as an outer ring in a bore in a planetary gear. An outer bearing ring cooperating with the inner ring is formed by the bore in the planetary gear, or an inner bearing ring cooperating with the outer ring is formed by the planetary gear shaft. A slide bearing material of a first bearing element of the axial slide bearings is applied between a planetary carrier cheek and an end side of a planetary gear. The end side of the planetary gear or the planetary carrier cheek forms a corresponding cooperating second bearing element.

The tester comprises: a clamp (22) to fix the upper sample (23) on its arc groove above the lower sample (25) connected to the middle of supporting shaft (37) by a flat key, a oil bath (26) to accommodate part (25), and a pressure bearing (20) with outside circle contacted to the upper arc surface of (22). This invention can protect the failure condition, and cuts wear test time.

A sliding bearing for a steering column includes: a cylindrical bearing body; flat surfaces formed integrally on an inner peripheral surface of the bearing body; first slits extending from one end face of the bearing body to this side of the other end face of the bearing body; second slits extending from this side of the other end face of the bearing body to the one end face of the bearing body; grooves formed in an outer peripheral surface of the bearing body; and elastic rings which are respectively fitted in the grooves in such a manner as to project from the outer peripheral surface of the bearing body and to reduce the diameter of the bearing body.

An air-filter device for a motor vehicle, having a casing and a filtering body separating the clean and dirty compartment, and also having a supporting body for the filtering body and a compression body designed to co-operate mechanically with the supporting body, these bodies being mounted in the manner of sliding drawers in an intermediate mounting compartment; the contact surfaces in mutual sliding bearing of the support and compression bodies are inclined in such a way that the forced stress position leading to a compression of the seal of the filtering body is achieved by displacement of the compression body in the direction of extraction and in that the control device, bringing about this displacement, stresses the supporting body and/or the casing in order to achieve the displacement of the compression body in a forced stress position, at least at the end of displacement.

The invention relates to a multi-layer plain bearing (1) that has a front side (4) that can face the element to be supported and a rear side (6) opposite the front side, comprising a supporting layer (2), a sliding layer (3) arranged on the front side (4), and an anti-fretting layer (5) arranged on the rear side (6), wherein the anti-fretting layer (5) is made of a copper-based alloy having copper mixed-crystal grains. The copper-based alloy of the anti-fretting layer (5) is formed by a binary alloy having an alloying element from the group comprising aluminum, zinc, indium, silicon, germanium, and antimony or by an at least ternary alloy having one alloying element from the group comprising aluminum, zinc, indium, silicon, germanium, tin, and antimony and at least one further element from said group and/or the further group comprising nickel, cobalt, iron, manganese, bismuth, lead, silver, and phosphorus, possibly with unavoidable impurities originating from production, wherein the total fraction of said alloying elements is at least 1 wt % and at most 30 wt %.

A drawer slide assembly includes an upper slide; an inner slide having a buffer unit located therein; at least two upper sliding guides being provided on top and bottom with first sliding bearings to bear against upper inner and lower inner surfaces of the upper slide and upper inner and upper outer surface of the inner slide, and on a lateral wall with second sliding bearings to bear against a lateral inner surface of the upper slide and a lateral upper outer surface of the inner slide, so that the upper slide and the inner slide are mutually slidably assembled to each other; and a mounting plate for holding the assembled upper slide and inner slide to a fixed place. With the sliding bearings so arranged, the drawer slide assembly provides a buffering effect to enable smooth and stable opening and closing of a drawer box.

Disclosed is a sliding bearing for an internal combustion engine for supporting a crankshaft including a pair of semi-cylindrical bearings combined with each other into a cylindrical body. Each of inner circumferential surfaces of the respective semi-cylindrical bearings includes first and second curved surfaces following two kinds of arcs with different curvatures. The first curved surface is in a region including a circumferential central portion of the inner circumferential surface. The second curved surfaces are in remaining two regions of the inner circumferential surface. The circumferential oil groove and the axial groove communicate with each other. The circumferential grooves of the second curved surfaces and the axial groove communicate with each other. The groove bottoms of the circumferential grooves of the second curved surfaces are displaced to a side of the bearing inner circumferential surface from a groove bottom of the axial groove.

The invention provides a large-allowance capturing mechanism for an end effector of a spatial large manipulator, relating to a large-allowance capturing mechanism. By the adoption of the large-allowance capturing mechanism for the end effector of the spatial large manipulator, the problems that an end effector mechanism and a control system of an existing spatial large manipulator are complicated and the reliability of space application is lowered are solved. A linear sliding bearing is installed on each linear sliding bearing guide rod in a penetration way; a finger installation platform is connected with the three linear sliding bearing guide rods in a sliding way through the three linear sliding bearings; a nut floating spring is sheathed on the outer wall of a ball screw nut; the center of the finger installation platform is elastically connected with the ball screw nut in a micro floating way through the nut floating spring; one end of each main connecting rod is rotationally connected with the finger installation platform; the other end of each main connecting rod is rotationally connected with a finger; one end of each auxiliary connecting is rotationally connected with the finger installation platform; and the other end of each auxiliary connecting rod is rotationally connected with the finger. The large-allowance capturing mechanism provided by the invention is used for the spatial in-orbit end effector.

There is disclosed a plain bearing comprising: a back metal; and a bearing alloy layer bonded onto the back metal which bearing alloy layer is provided at a surface side thereof with a cylindrical bearing face extended in the direction of the axis of the plain bearing, the bearing alloy face being provided at each of axial terminal portions thereof with an inclination face inclined radially outwardly from a location defined between both of axially terminal ends of said bearing face toward said axially terminal ends thereof, the inclination face having an axial length varying along the circumference of the inclination face.

A sliding material including a resinous porous article having an interconnected hole porosity of not less than 30% and a lubricating oil which impregnates the resinous porous article is disclosed. The resinous porous article has an interconnected hole formed by molding a resin mixed with a pore-forming substance into said resin, and extracting said pore-forming substance from said molded article with a solvent which dissolves said pore-forming substance and does not dissolve said resin. A sliding bearing composed of a sliding material having a sliding surface which slides on a mating member and a lubricating oil supply layer which supports the sliding material and supplies the sliding surface with the lubricating oil.

The invention provides a comprehensive performance test table for a water-lubricated dynamic-static pressure radial sliding bearing, comprising a box and main shaft. The main shaft penetrates through the box; a radial sliding bearing is sleeved on the part of the main shaft, which is in the box; the radial sliding bearing is fixed in a radial sliding bearing pedestal; the radial sliding bearing pedestal is arranged in a loading cylinder which is fixed at the bottom of the box; a static-pressure water cavity is formed in the gap between the radial sliding bearing pedestal and the loading cylinder, and the static-pressure water cavity is communicated with a loading connection pipe; the gap between the main shaft and the radial sliding bearing is communicated with a water inlet pipe; the side wall of the box is provided with a drain pipe; a displacement sensor which is used for measuring the horizontal displacement and the vertical displacement of the main shaft is arranged near the main shaft; a pressure sensor and a temperature sensor are arranged on the matching surface of the main shaft and the radial sliding bearing; and a rotation torque and speed sensor is arranged on the input end of the main shaft. The comprehensive performance test table adopts the pure water lubrication and can simulate various working conditions and test the pressure, the temperature, the thickness, the friction coefficient, the axial displacement, the deviation angle and other parameters of the water film to provide valuable basis for the design of the radial sliding bearing which is used for the water hydraulic pump, the motor and related water-lubricated machinery.

The invention is a thrust bearing using the interface slippage technology, and is characterized in that the bearing comprises a static and a moving flat panels that are parallel to each other; the gap between the static and the moving flat panels is filled with fluid lubricating oil; a coating layer II is arranged on part of the static flat panel; a coating layer I is arranged on the rest partof the static flat panel; a coating layer III is arranged on the surface of the moving flat panel, Therefore, a thrust bearing is formed by the two flat panels through a certain relative moving between the static flat panel and the moving flat panel, the coating layer I is a fluorocarbon coating layer, and the coating layer II and III are coatings of mica powder modified by silane coupling agents. The thrust bearing is simple in the bearing forming and has a certain carrying capacity, good anti-friction and wear-resistance without the need of processing the matching surface into a geometric shape. With simple and compact structure and small size and low production cost, the thrust bearing can replace the traditional fluid motive power lubrication thrust bearing for bearing purpose.

A crank bearing is disclosed that includes a semicircular upper bearing and a semicircular lower bearing, which can be split from each other. The upper bearing includes a first oil passage for introducing engine oil from the outside to a gap between the crank bearing and a crank journal, and a second oil passage for permitting the engine oil to flow in the circumferential direction of the crank bearing. The first oil passage includes an inner circumference opening, which is open to the inner circumference of the main bearing. The upper bearing includes a non-undercut portion in which no oil passage is formed on the trailing side of the inner circumference opening in the rotational direction of the crank journal. A chamfer oil passage for discharging the engine oil in the second oil passage to the outside from the axial direction of the crank bearing is provided in at least one of the lower bearing and a region on the proceeding side of the circumference opening in the rotational direction of the crank journal.

The invention discloses the bearing micro-load friction measuring method and the equipment. The measuring frame comprises the extruding arm, the measuring dial, the loading bolt, the measured bearing and the baffle. Equip the measured bearing in the hole of the measuring dial; add the force on the measuring frame from the top by the upward force and realize the micro-load measuring through the gravity of the measuring frame paralleled floating above the spin axis. The angle produced by the parallel of the friction and the pull force of the deviation is amplified into the vertical displacement of the extruding arm end. The non-contacting sensor realizes the precise measurement of the friction and the frictions coefficients of the sliding bearing and rolling bearing.

A sliding rail coupling structure includes an outer rail, an intermediate sliding rail slidable in and out of the outer rail and having two longitudinal sliding grooves at two sides, sliding bearing bushes coupled to and movable along the intermediate sliding rail, each sliding bearing bush holding a plurality of roller cylinders that are kept in contact between the top wall of the intermediate sliding rail and the top wall of the outer sliding rail and a plurality of rolling balls that are respectively kept in contact between the longitudinal sliding grooves of the intermediate sliding rail and the sidewalls of the outer sliding rail, a roller holder affixed to the intermediate sliding rail to support two support rollers that are respectively in contact with two bottom flanges of the outer sliding rail.

The invention relates to a two-position three-way inverse proportion decompression electromagnetic valve for an AT (Automatic Transmission). The two-position three-way inverse proportion decompression electromagnetic valve is mainly formed by a main valve and a proportion electromagnet, wherein the main valve is formed by a valve body, a valve core which is positioned at the inner part of the valve body, a valve seat which is sleeved on the valve body and an inner valve core which is positioned at the inner part of the valve core and close to one side of the valve seat, and the proportion electromagnet is formed by a sliding bearing, a bearing seat, a pole shoe, an armature, a top rod, a stroke gasket, a stop iron, a spring seat, a regulating spring, a baffle plate, a regulating screw, a baffle plate cushion, a coil and a yoke iron. According to the two-position three-way inverse proportion decompression electromagnetic valve disclosed by the invention, the problems such as lower response speed, larger pressure fluctuation, short service life, large leakage rate and high manufacturing cost of an existing inverse proportion decompression electromagnetic valve for the AT are solved, and the two-position three-way inverse proportion decompression electromagnetic valve disclosed by the invention has the advantages of high response speed, small pressure fluctuation, long service life , small leakage rate, lower manufacturing cost and the like.

An overlay layer 3 comprising MoS₂ as a solid lubricant and PAI resin as a binder resin is formed on a flattened surface of a bearing alloy layer 2, and a helical groove 4 and annular projections 5 are formed as an uneven configuration in and on the surface of the overlay layer. In accordance with the invention, a regular uneven configuration is formed on the surface of the overlay layer to allow a lubricant oil to be secured in recesses of the uneven configuration, allowing a seizure resistance to be improved. The bearing alloy layer is machined to have a flat surface having a fine roughness on its surface which represents a boundary with an overlay layer, whereby individual convex areas of the overlay layer are evenly subject to a plastic deformation, allowing the fitting property response of the sliding bearing to be improved.