1118results about "Shaft assembly" patented technology

A bearing system includes a housing having an inner surface defining a bore and a slot, and a foil bearing assembly positioned within the bore. The foil bearing assembly includes an outer foil assembly, a bump foil assembly, and an inner foil assembly. The outer foil assembly includes an outer foil extending from a first outer foil end to a second outer foil end, and a first anti-rotation tab at the first outer foil end that is received by the slot to limit circumferential movement of the outer foil in a first direction. The inner foil assembly is secured to the outer foil and includes an inner foil extending from a first inner foil end to a second inner foil end, and a second anti-rotation tab at the second inner foil end that is received by the slot to limit circumferential movement of the inner foil in a second direction.

A solar tracker bearing apparatus mountable to an upright support post for rotatably supporting a torque tube beam of a solar tracker assembly and including: a rotatable bearing assembly supported for rotation about an axis of rotation by a stationary saddle assembly. The rotatable bearing assembly includes a central portion and first and second spaced apart arcuate peripheral portions, the central portion defining a beam slot, the first arcuate peripheral portion including a first arcuate rim bearing and the second arcuate peripheral portion including a second arcuate rim bearing, and the first and second rim bearings being spaced apart in a direction parallel to the axis of rotation of the rotatable bearing assembly. The stationary saddle assembly includes a first arcuate bearing race slidably supporting the first arcuate rim bearing and a spaced apart second arcuate bearing race slidably supporting the second arcuate rim bearing.

The invention discloses a fine gap-adjustable tilting pad bearing and a control method, and belongs to the technical field of bearings, and the fine gap-adjustable tilting pad bearing comprises a bearing body, pads, pre-tightening screws, set screws, a cover plate, a displacement amplification structure, pre-tightening bolts, elastic gaskets and piezoelectric ceramic stacks. A plurality of tilting pads are arranged on the inner arc surface of the bearing body and are matched with the bearing body through a spherical support; four radial grooves are formed in the outer arc face in the circumferential direction and are opposite to the centers of the four tile blocks respectively. A notch of the radial groove is connected with a cover plate, is internally provided with a piezoelectric ceramic displacement amplification mechanism and is connected with the spherical support through a positioning pin; a piezoelectric ceramic stack is arranged between a left boss and a right boss of the mechanism and is pre-tightened by a pre-tightening bolt and an elastic gasket. According to the invention, the inverse piezoelectric effect of piezoelectric ceramics is utilized, a vibration and non-linear suppression method is provided, an advanced control algorithm is matched, the piezoelectric ceramics stack is electrified and contracted, a displacement amplification effect is generated through a displacement amplification mechanism, the tile gap is finely adjusted, and the high-performance requirement of modern rotating machinery is met.

A press tool system for pressing a bushing assembly into a bushing opening defined by a structural member comprising a tool assembly and an actuator system. The press tool system comprises a tool assembly and an actuator system. The tool assembly comprises a brace assembly, a drive member, and a retaining sleeve. The actuator system comprises an actuator housing assembly and a piston member. The brace assembly is arranged to brace the actuator housing assembly relative to the structural member. The drive member is arranged between the piston member and the bushing assembly. The retaining sleeve is arranged at least partly around the bushing assembly. The actuator system displaces the piston member relative to the actuator housing assembly to force the bushing assembly at least partly through the retaining sleeve and into the bushing opening in a desired position relative to the structural member.

The present invention pertains to a wear pad for a telescopic boom of a work machine, comprising a base part configured to be fixedly mounted to the telescopic boom, and a top layer part configured to provide a wear-resistant, low friction sliding surface. The top layer part is configured to be releasably mounted to the base part. The invention further pertains to a telescopic boom assembly for a work machine, comprising a first boom segment having at least one first wear pad assembly mounted to a free end of the first boom segment, and a second boom segment having at least one second wear pad assembly mounted to a sliding end of the second boom segment, wherein at least one of the wear pad assemblies comprise a wear pad having a base part and a top layer part configured to provide a wear-resistant, low friction sliding surface. The top layer part is configured to be releasably mounted to the base part. Further, the present invention pertains to a work machine comprising such telescopic boom assembly.

The invention relates to a push / pull rod (10) comprising at least one first fastening device (12) with a coupling element (12a) and a shank (12b) which is arranged on it, at least one first connection piece (18), wherein the first fastening device (12) is connected to the first connection piece (18) such that it can be rotated via a threaded arrangement (30) in order to change the length of the push / pull rod (10), a holding device with first and second holding elements interact, and are pressed against one another by means of a spring element (28), wherein the first holding element of the holding device is connected fixedly to the first connection piece (18) for conjoint rotation, and the second holding element is arranged fixedly on the first fastening device (12) for conjoint rotation.

Provided is a sealing device (10) for use together with a rolling bearing to at least partially seal at least one interior space (12) of the rolling bearing from an external environment (14). The sealing device (10) includes a first carrier member (16) having a passage (20) that fluidly connects an internal space (12) of the rolling bearing and an external environment (14). The sealing device (10) also includes a ventilation means (24) having at least one accommodating body (26) and at least one membrane (28). The accommodating body (26) includes a channel (32) and completely passes through the passage (20) of the first carrier member (16). The membrane (28) is at least partially disposed in the channel (32) of the accommodating body (26). The accommodating body (26) is injection molded, and the membrane (28) is overmolded and / or laser welded to the accommodating body (26) and fixed thereto.

A ball joint assembly for a vehicle includes a mounting part including an inner circumference part forming a hole in a vertical direction; a ball stud including a ball and a stud extending from the ball; a bearing coupled to surround the ball and disposed in the hole; and an insert molding part for filling the space of the hole formed between the inner circumference part and the outer surface of the bearing. The inner circumference part includes at least one upper protruding part protruding from an upper area thereof in a direction toward a central axis of the hole and at least one lower protruding part protruding from a lower area thereof in a direction toward the central axis.

A linear motion guide apparatus that is easily assembled is provided. The linear motion guide apparatus includes: two guide rails that are movable relative to each other in a longitudinal direction thereof via at least one rolling element; and a cage configured to hold the rolling element and hold a gear engaging with a meshing portion provided to at least one of the two guide rails. The cage includes: a first split body in which a rolling element holding portion that holds the rolling element and a gear holding portion that holds the gear are integrally formed; and a second split body in which a rolling element holding portion that holds the rolling element and a gear holding portion that holds the gear are integrally formed. The first split body and the second split body are joined to each other.

The invention provides an upper node of a spherical connecting rod. The spherical connecting rod upper node comprises a core shaft and a rubber body wrapping the core shaft, a circle of protrusions with hemispherical sections are arranged on the middle section of the core shaft in the circumferential direction, the protrusions are glued to the inner side of the rubber body, and the outer side of the rubber body is of a cylindrical structure. According to the spherical connecting rod upper joint, the problems that an existing rubber joint is high in deflection rigidity, common in deflection fatigue performance, difficult to meet use requirements and the like are solved.

The spindle sliding bearing comprises a radial pad, a thrust pad and a bearing main body, the middle of the bearing main body is columnar, and the two sides of the bearing main body are conical tables; the radial pads are uniformly arranged in the middle of the through hole in the bearing main body in the circumferential direction, and the thrust pads are uniformly arranged on the conical tables at the two ends of the bearing main body in the circumferential direction. Compared with the prior art, the segmented sliding bearing is adopted, the conical surface radial pads and the inclined plane thrust pads are distributed in an array mode in the axial direction to form a multi-pad structure, and the pad replacement efficiency can be improved. The thrust pad installed in an inclined mode can bear radial loads and axial loads at the same time, and the overall bearing capacity of the bearing is enhanced while axial impact is borne.

The invention provides a fitting machine for rolling bearing manufacturing, and relates to the technical field of bearing assembly, the fitting machine comprises an assembly seat, the assembly seat comprises a cooling support bin, a first fitting support plate is longitudinally and slidably mounted in the cooling support bin, and a second fitting support plate is longitudinally and slidably mounted in the first fitting support plate; a pair of clamping grooves is formed in the inner side of the second fitting supporting plate, a conical supporting barrel is fixedly installed at the top of the first fitting supporting plate, a plurality of conical limiting barrels are longitudinally and slidably installed on the conical supporting barrel, and a plurality of limiting grooves are fixedly formed in the tops of the conical limiting barrels. Meanwhile, the positions of the rollers and the balls can be fixed before fitting, so that the rollers or the balls are prevented from deviating during fitting, and the mounting efficiency is prevented from being influenced; by means of the retainer assembling mechanism, the retainer can be accurately arranged in the balls in a sleeved mode, and the bearing assembling efficiency is improved.

A modular crankshaft configured for use within a power end assembly. The modular crankshaft is configured to interconnect a drive shaft and a plurality of linear drive assemblies. The various embodiments of modular crankshafts disclosed herein are assembled by interconnecting a plurality of individual main bearing journals using a plurality of fasteners. One or more embodiments of modular crankshafts may also include individual connecting rod journals that are attached to individual main bearing journals using a plurality of fasteners.

An adjustable ball joint which is infinitesimally adjustable using a jam nut wherein no set screws are used. A kit for constructing an adjustable ball joint which is infinitesimally adjustable using a jam nut wherein no set screws are used. A method of assembling an adjustable ball joint which is infinitesimally adjustable using a jam nut wherein no set screws are used.

The invention discloses a needle mounting device, and relates to the technical field of retainer needle mounting. A needle installing device comprises a reciprocating driving part, a belt rotating part connected to the reciprocating driving part, a pressing die connected to the belt rotating part and a matching die arranged opposite to the pressing die, the matching die is provided with a containing groove used for containing a retainer, and the matching die is further connected with a needle feeding machine communicated with the containing groove. The radial driving-in device can efficiently complete radial driving-in of the roller pins.

A bearing device includes a first ring and a second ring configured to rotate relative to one another and an insulating sleeve formed from a bushing and an electrically insulating lining. The lining is overmolded on the bushing and on the second ring and connects the bushing to the second ring. The radial internal or external surface of the bushing incudes at least one helicoidal groove and the lining incudes at least one fastening rib having a shape complementary to a shape of the at least one helicoidal groove that extends into the at least one helicoidal groove. The helicoidal groove extends circumferentially at least 360 degrees around the radial internal or external surface of the bushing or the radial internal surface of the bushing.

The invention provides a steel wire raceway bearing. The steel wire raceway bearing comprises a shell; a steel wire disposed in a recess of the housing for accommodating the steel wire; and the elastic adhesive is coated between the steel wire and the concave part so as to adhere the steel wire to the concave part. The invention also provides a method for assembling the steel wire raceway bearing. The method comprises the following steps of: 1, coating the concave part with the elastic adhesive along the circumferential direction; 2, the steel wire is installed in the concave part coated with the elastic adhesive; and 3, curing the elastic adhesive so as to bond the steel wire to the concave part. Compared with the prior art provided with a buffer pad, the steel wire and the shell can be fixedly bonded together through the elastic adhesive, unexpected displacement of the steel wire can be effectively prevented, the steel wire can still be allowed to move within an allowable range, vibration of the steel wire can be absorbed, and the buffering effect is achieved.

Provided is an air-conditioning indoor unit. The air-conditioning indoor unit includes a plurality of centrifugal wind wheels, a motor drivingly connected to the plurality of centrifugal wind wheels, an electric control box disposed in an axial direction of the plurality of centrifugal wind wheels, and an evaporator disposed in a radial direction of the plurality of centrifugal wind wheels and obliquely disposed relative to a height direction of the air-conditioning indoor unit. By providing the plurality of centrifugal wind wheels and driving the plurality of centrifugal wind wheels by a same motor, when a size of the air-conditioning indoor unit is large, a constant air volume may be outputted. The electric control box is located in the axial direction of the centrifugal wind wheel and far away from the evaporator, to prevent the electric control box from being splashed by condensed water. In addition, since there is a large space when the centrifugal wind wheel is provided, the electric control box is located in the axial direction of the centrifugal wind wheel to more facilitate an arrangement of the electric control box. The evaporator is disposed obliquely relative to the air-conditioning indoor unit. In this way, a thickness of the air-conditioning indoor unit can be reduced, and heat exchange efficiency can be improved.

Provided is a one-way bearing that can reduce weight by changing the material, increase the area of the yield strength, make it less likely to cause fracture or rupture, and effectively extend the service life. 【Solution means】The one-way bearing is used between an input member and an output member, and is composed of a plastic mounting seat body, a plurality of rollers, and a metal conduction seat body. A plurality of mounting grooves penetrating in the radial direction at equal intervals are formed in the plastic mounting seat body, and the plurality of rollers are accommodated in the corresponding plurality of mounting grooves. The metal conduction seat body has a plurality of conduction slopes corresponding to the plurality of mounting grooves on the surface corresponding to the peripheral portion of the plastic mounting seat body. The plurality of rollers on the plastic mounting seat body selectively press the metal conduction seat body by using the plurality of conduction slopes facing each other, and drive in one direction, thereby reducing the weight of the one-way bearing, achieving the effects of weight reduction, cost reduction, and easy processing without affecting the strength of power conduction.

The invention relates to the technical field of bearings, and particularly discloses a crossed roller bearing and a manufacturing method thereof.The manufacturing method comprises the steps that S10, a bearing ring and a plug are preprocessed; s20, preassembling is carried out; s30, rough machining is conducted; s40, heat treatment; s50, finish machining is conducted; s60, assembling is conducted; and S70, welding is conducted. According to the crossed roller bearing and the manufacturing method thereof, through the special design of the plug and the filling hole, the traditional structural form that the plug is positioned and fixed through a conical pin is changed, the plug can be effectively prevented from moving in any direction in the filling hole, the repeated positioning precision of assembling and returning to the original position after the plug is disassembled is avoided, and the production efficiency is improved. And the yield of one-time assembly of the bearing is greatly improved. A structural mistake proofing mechanism is constructed, the problem that the plug is reversely installed in the assembling process can be effectively prevented, and the assembling efficiency and the assembling accuracy are improved; and the structural stability after assembly is remarkably improved, and the problem of bearing clamping stagnation or abnormal sound caused by displacement of the plug due to vibration or operation impact is effectively prevented.

The invention provides a joint bearing fixing and limiting structure, and aims to overcome the defects caused by a joint bearing and connecting rod fixing and limiting mode in the prior art. The invention relates to the technical field of gas turbines, which is characterized in that a check ring similar to a groove in shape is mounted in a connecting rod clamping groove in a manner of locally grooving a connecting rod, then the check ring is rotated through a process hole in the check ring, so that a protruding part of the check ring is screwed into the lower part of a convex shoulder of the connecting rod, and then the circumferential position of the check ring is fixed through a screw or a pin; therefore, the knuckle bearing is fixed, the axial position of the knuckle bearing is limited, the knuckle bearing is firmly installed in the connecting rod, and therefore the structure can bear large loads and has good stability and reliability.

A power tool includes a motor housing and a motor supported within the motor housing. The motor includes an output shaft defining an axis. The power tool also includes a bearing configured to support the output shaft for rotation about the axis, an end cap removably coupled to the motor housing, and a bearing retainer integrally formed with the end cap. The bearing retainer is configured to axially and radially secure the bearing to the end cap.

A roller flange for mounting on an end face of a cylindrical or drum-shaped roller comprises a substantially annular plastic body, a bearing and a metallic ring surrounding the bearing. The ring and the bearing are at least partially embedded in the plastic body. The ring has elements for force transmission, which are positioned distributed at or on a surface of the plastic body. The elements for force transmission comprise at least one locking means for transmitting an axial force between the roller and the roller flange, and at least one pin for transmitting a radial force between the roller and the roller flange.

Disclosed is a bearing system (34, 72, 100) for a bicycle (1) comprising a bicycle frame (2), wherein the bearing system (34, 72, 100) forms a rotary joint of a wheel suspension and has at least one inner ring (36, 84, 102) and at least one outer ring (38, 76, 108) comprising a bearing element (40, 80, 82) arranged therebetween. According to the invention, the inner ring (36, 84, 102) forms a pre-assembled assembly together with the outer ring (38, 76, 108) and the bearing element (40, 80, 82). Also disclosed is a bicycle (1) comprising such a bearing system (34, 72, 100).

The electromagnetic bearing rotating part comprises a target shaft sleeve, a magnetic steel shaft sleeve assembly and an auxiliary bearing shaft sleeve which are sequentially installed on a rotating shaft, and the assembling tool comprises a tool shaft sleeve, an extrusion assembly and a driving part. The tool shaft sleeve can be arranged on the rotating shaft in a sleeving mode and abut against the target shaft sleeve, at least part of the extrusion assembly can be arranged on the rotating shaft in a sleeving mode and abut against the magnetic steel shaft sleeve assembly or the auxiliary bearing shaft sleeve, and the driving part is used for applying axial pressure to the tool shaft sleeve and / or the extrusion assembly. According to the assembly tool, the problem of assembly defects occurring in the hot jacket cooling process of the electromagnetic bearing rotating part is solved, it can be ensured that the relative positions of the electromagnetic bearing rotating part and the rotating shaft are kept unchanged, the assembly precision is improved, it can be ensured that silicon steel sheets are always tightly laminated, and therefore the performance and reliability of an electromagnetic bearing are ensured.

Disclosed herein includes a quick-release tubular seal including a tube having a first end and a second end. The quick-release tubular seal also includes first seal assembly configured to selectively seal against the first end of the tube and a second seal assembly configured to selectively seal against the second end of the tube. Additionally, the quick-release tubular seal includes a cam disposed on the first seal assembly, the cam being operable between a first position and a second position. The quick-release tubular seal includes a shaft mechanically coupled to the cam, the first seal assembly, and the second seal assembly, the shaft configured to actuate both the first seal assembly to seal against the first end of the tube and actuate the second seal assembly to seal against the second end of the tube when the cam is actuated from the first position to the second position.

A bearing, in particular to a self-aligning roller bearing, with a fastener of a sealing disc, which fastener increases the load-bearing strength. The bearing includes a bearing ring with an annular sealing disc which is connected to one of the two bearing ring end surfaces by a fastener which have a shank and a head, which has an enlarged diameter with respect to the shank, and the respective shanks reach through the bores which are made in the respective end surface. Here, the annular surfaces have a cylindrical contour, with the result that the other annular surface provides a raceway, wherein the raceway has a spherical contour, and the bore center axis of each bore in the bearing ring and in the sealing disc has an engaged profile which converges onto the cylindrical contour of the one annular surface.

The invention relates to the field of rolling bearing manufacturing, in particular to an assembly bearing and a manufacturing process thereof. An assembly bearing comprises an outer ring, an inner ring is arranged on the inner side of the outer ring, annular grooves are formed in the inner periphery of the outer ring and the outer periphery of the inner ring, a plurality of rolling beads are arranged between the outer ring and the inner ring and arranged in the annular grooves in the outer ring and the inner ring, retainers are arranged on the upper sides and the lower sides of the rolling beads, and the retainers are arranged in the annular grooves in the outer ring and the inner ring. A plurality of arc-shaped grooves corresponding to the rolling beads are formed in the retainer, and the rolling beads are inserted into the corresponding arc-shaped grooves. A manufacturing process of the assembly bearing manufacturing device for manufacturing the bearing comprises the following steps that S1, an outer ring is clamped between the two arc plates; s2, the inner ring is placed on the upper side of the tray, and at the moment, the inner ring is located on the inner side of the outer ring; and S3, the inner ring is placed at the eccentric position of the outer ring, the gap between one side of the inner ring and one side of the outer ring is enlarged at the moment, and the multiple rolling balls are placed between the inner ring and the outer ring at the moment.

The present invention provides a main bearing for a CT machine, belonging to the technical field of bearing manufacturing. The main bearing for a CT machine includes an inner ring, an outer ring, and two rows of balls each equipped with a cage. One of the inner ring and the outer ring is provided with a raceway in contact with the two rows of balls, and the other includes a first split ring and a second split ring. The first split ring is provided with a boss for temporarily supporting the first row of balls when installing the first row of balls. Gaskets are respectively fixed on the two split rings through retaining rings. Both retaining rings are integral annular rings and are provided with raceways in contact with the balls. Both split rings have an inner diameter or an outer diameter adapted to the corresponding retaining ring for the corresponding retaining ring to be directly installed on the split ring along the axial direction. A support ring for temporarily supporting the second row of balls when installing the second row of balls is clamped between the two split rings. Compared with the existing steel wire with a notch, the integral annular ring has higher structural strength, eliminating the problem of abnormal noise of the bearing. At the same time, the use of the support ring ensures the smooth assembly of the bearing.

The invention relates to the technical field of bearing assembly, in particular to a double-row deep groove ball bearing fitting mechanism which comprises a workbench, a rotary disc rotationally installed on the workbench, a plurality of bearing tools arranged on the rotary disc, a positioning device used for circumferentially positioning the rotary disc, a first ball discharging device and a second ball discharging device, and the first ball discharging device and the second ball discharging device are arranged on the workbench. An inner ring feeding station, an outer ring feeding station, a first ball discharging station, a second ball discharging station and a material taking station are sequentially arranged on the rotating disc in the rotating direction, the number of the bearing tools is the same as that of the stations, and the first ball discharging device and the second ball discharging device are arranged on the first ball discharging station and the second ball discharging station respectively. The bearing tool comprises an outer ring positioning assembly used for radially positioning the bearing outer ring and a roller limiting protrusion used for limiting a filled roller, and when the bearing inner ring is placed on the bearing tool, the bearing inner ring can move to form a filler gap with the bearing outer ring. The double-row deep groove ball bearing sleeve assembling machine has the advantage that automatic sleeve assembling of double-row deep groove ball bearings is achieved.