1406results about "Linear bearings" patented technology

The invention relates to an extension guide (1) for mounting a movable furniture part linearly movably along an extension direction (2), comprising a carcass rail (10) which can be fixed to a furniture carcass, a drawer rail (50) which can be fixed to the movable furniture part, and a linearly movable center rail (30) arranged between the carcass rail (10) and the drawer rail (50), at least one load-transmitting inner carriage (20) arranged between the carcass rail (10) and the center rail (30) and at least one load-transmitting outer carriage (40) arranged between the center rail (30) and the drawer rail (50). The extension guide 1 can be easily and cost-effectively adapted to different rail lengths in that that the inner carriage (20) and / or the outer carriage 40 is / are formed of a plurality of segments (21, 24, 40.1, 41, 42) which are connected to one another, preferably detachably connected.

The invention discloses a three-coordinate measuring machine, which comprises a first guide rail; the second guide rail is parallel to the first guide rail; the two ends of the cross beam are movably connected with the two guide rails through a first connecting assembly and a second connecting assembly, and at least part of the cross beam is located in the space between the first guide rail and the second guide rail; the driving unit comprises a first driving mechanism and a second driving mechanism which are assembled to the first connecting assembly and the second connecting assembly correspondingly and used for driving the cross beam to move synchronously along the first guide rail and the second guide rail. The sliding frame is movably connected to the cross beam; the Z-axis assembly is assembled on the sliding frame; the gravity centers of the cross beam, the sliding frame and the Z-axis assembly are coplanar with the top faces of the two guide rails. The invention provides a three-coordinate measuring machine, which ensures the operation stability of a cross beam.

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

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 present invention relates to a linear motor, the rotor is well sealed through a sealing module when running on the stator slide rail, so that small external dust that affects the operating accuracy and stability performance of linear motor is not easy to enter the sealed space; the lubrication module communicates with the sealed space, so that the linear motor can be effectively lubricated during operation, further improving the operational accuracy and stability of the linear motor; the ball return end cap and the first chute together form a circulation loop for ball movement, the ball retaining plate fits with rotor through locating surface to improve the installation accuracy, meanwhile contact surfaces that limit balls are provided on both sides of the locating surface, so that a ball retaining plate can be used for two rows of circulation loops.

A bushing for a steering column rake bracket assembly includes a flange portion. The bushing also includes a tubular segment having an inner wall defining a central hole and an outer wall. The outer wall of the tubular segment includes a first flat outer surface. The outer wall also includes a second flat outer surface. The outer wall further includes a first curved end surface connecting the first flat outer surface and the second flat outer surface. The outer wall yet further includes a second curved end surface connecting the first flat outer surface and the second flat outer surface.

An adjustable wear block for a mast system can include a housing and a wear pad arranged on an adjustable base within the wear block housing. In one embodiment, the wear block, wear pad, and adjustable base all have a circular cross-section. Threading on the outside of the base can match threading on an inner wall of the housing. As the base is rotated within the housing, the position of the base and the attached wear pad can be adjusted with respect to the housing. A hole can be provided through a channel or mast wall to permit an adjustment tool to be used to adjust the position of the base with respect to the housing after the wear block is secured to the carriage or mast. In an alternate embodiment, a hydraulic piston can drive the position of the wear pad with respect to the wear block housing.

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 discloses an adjustable electromagnetic force preloading porous static pressure air floating cushion, and belongs to the technical field of air floating transmission, the air floating cushion comprises a base, an air floating cushion main body, an air supply mechanism, an electromagnetic assembly and an adjusting mechanism, the base is provided with a magnetic conductive material layer, and an air floating surface is formed at the top of the base; the air floating cushion main body is provided with a porous throttling block, and an air film gap is formed between the bottom of the air floating cushion main body and the base; the air supply mechanism is communicated with the air floating cushion main body and is used for conveying air to the porous throttling block; the electromagnetic assembly is arranged on the air floating cushion main body and is used for generating adjustable electromagnetic preloading force on the magnetic conductive material layer; the adjusting mechanism is connected to the electromagnetic assembly and used for changing the distance between the electromagnetic assembly and the magnetic conductive material layer so as to adjust the magnitude of the electromagnetic preloading force. Electromagnetic force adjustable preloading, porous uniform throttling and a mechanical fine adjustment mechanism are organically integrated, and the effects of preloading force flexible control, gas film pressure balanced distribution and system rigidity strengthening are synchronously achieved on the premise that external complex equipment is not needed.

The invention discloses a vacuum inner guide rail high-precision displacement adjusting and supporting mechanism which is characterized by comprising a vertical Y displacement table, a horizontal X displacement table, a rolling angle adjusting mechanism, a four-way vacuum cavity and a cross connecting rod. The rolling angle adjusting mechanism comprises a rolling adjusting knob and cross-shaped connecting rod fixing frames located at the upper end and the lower end. An upper port and a lower port of the four-way vacuum cavity are respectively connected and fixed with a corrugated pipe fixing flange through a corrugated pipe, and the corrugated pipe fixing flange is connected with a cross-shaped connecting rod fixing frame; a vacuum cylinder butt joint flange is arranged at a port of one side, close to the insert vacuum cylinder, of the four-way vacuum cavity in the horizontal direction, and the other side is closed; the upper end and the lower end of the cross-shaped connecting rod are connected with the corrugated pipe fixing flange; rollers are arranged at one ends of the horizontal supporting rods for supporting and connecting the guide rails; the rolling angle adjusting knob is used for adjusting the cross-shaped connecting rod fixing frame and drives the guide rail to rotate around the Z axis with the rolling adjusting rotating shaft as a rotating shaft. Rolling angle error adjustment is achieved, and guide rail installation is facilitated.

The invention provides an aviation opening, supporting and closing locking mechanism and method. The aviation opening, supporting and closing locking mechanism comprises a side guide rail body, a base, a supporting lock sleeve and a supporting lock hook assembly. When the side guide rail body rotates to a horizontal closed state, the supporting lock sleeve and the supporting lock hook assembly are clamped and fixed to achieve locking. And when the side guide rail main body rotates to an open supporting state, the bottom surface of the supporting lock sleeve is supported on the top surface of the supporting lock hook assembly to realize stable supporting. The device is small in structural size, light in overall weight, convenient to operate and convenient to install, the requirements for rapid overturning opening and rapid closing locking of the side guide rail can be met, the buffering function is achieved in the closing process, and safety is improved. The device is complete in overall function, reliable in structure, high in man-machine work efficiency and low in failure rate.

A slide rail assembly is provided and includes a first rail, a second rail, an aiding-slide device, an auxiliary member and a retaining member. The second rail is movably mounted on a channel of the first rail. The aiding-slide device is movably mounted between the first rail and the second rail. The auxiliary member is connected to the aiding-slide device and includes an engaging feature. The retaining member is arranged on the first rail and includes a resilient portion having a predetermined feature. The auxiliary member and the aiding-slide device are made of a first material and a second material, respectively. When the second rail is detached from the first rail by displacing relative to the first rail along an opening direction, the aiding-slide device is located at a predetermined position by an engagement of the engaging feature and the predetermined feature.

Steer-by-wire steering system for a motor vehicle, comprising a housing (22, 122), a spindle (24, 124) with an external thread and a spindle nut (150) with an internal thread which is rotatably mounted in the housing (22, 122) in a fixed manner, wherein the external thread and the internal thread form a movement thread for the axial displacement of the spindle (24, 124) relative to the housing (22, 122) when the spindle nut (150) is rotated, wherein the spindle (24, 124) is mounted in an axially sliding manner relative to the housing (22, 122) at least indirectly by means of a bearing sleeve (170) at least in the region of one of its ends (124e). The invention is characterized in that a rigid bearing relative to the housing (22, 122) is provided by means of a first plain bearing (180) and a flexible bearing is provided by means of at least one further plain bearing (185), wherein the further plain bearing (185) is arranged between the first plain bearing (180) and the spindle nut (150) and has a lower radial rigidity than the first plain bearing (180).

A slide rail assembly includes a first rail, a second rail, a blocking feature, two operating members and a locking member. The second rail and the first rail are movable relative to each other. The blocking feature is arranged on the first rail. The two operating members and the locking member are movably mounted on the second rail. When the second rail is located at a predetermined position relative to the first rail and when the locking member is in a locking state, the locking member and the blocking feature are configured to block each other to prevent the second rail from being moved away from the predetermined position. When one of the two operating members is operated, the locking member is configured to be driven to move from the locking state to an unlocking state to allow the second rail to be moved away from the predetermined position.

A linear motion unit includes: a linear motion mechanism including a track member and a moving member; and a housing including a fastener. The fastener includes a first element, a second element meshable with the first element, a first slider, and a second slider located away from the first slider in longitudinal directions. The first slider and the second slider cause the first element and the second element to be separated from each other when the first slider and the second slider move away from each other, and cause the first element and the second element to mesh with each other when the first slider and the second slider move toward each other. The first slider and the second slider are fixable to the moving member.

The invention discloses a precise linear guide rail, and relates to the precise linear transmission technology. The precise linear guide rail comprises a guide rail body, a sliding block is installed on the guide rail body in a sliding mode, a plurality of circulating grooves are formed in the sliding block, retainers are movably arranged in the circulating grooves, a plurality of containing grooves are formed in the retainers, and rollers are movably installed in the containing grooves. A through groove is connected between the two containing grooves, pressing rollers are movably arranged at the two ends in the through groove, and an abutting mechanism is further installed in the through groove. According to the precise linear guide rail, when the sliding block slides on the guide rail body, the pin rollers making contact with the guide rail body rotate synchronously, a certain distance is formed between the rotating pin rollers and the containing grooves through the pressing rollers, and the situation that the pin rollers move relative to the side walls of the containing grooves all the time to cause abrasion is avoided; and the position of the roller can be limited to a certain extent, so that the roller can move in the middle of the accommodating groove as much as possible.

A linear guide (10) comprises: a guide rail (1) having a raceway groove (3) on a side surface; a slider (2) assembled to the guide rail (1) and having a raceway groove (7) facing the raceway groove (3); and a plurality of rolling elements disposed rollably in a rolling element rolling path (23), which is composed of a load rolling path (22) formed by the raceway grooves (3, 7), and a no-load rolling path (21) provided on the slider (2) and communicating between one end and the other end of the load rolling path (22). One of the guide rail (1) and the slider (2) moves relative to the other as the rolling elements roll. The plurality of rolling elements are constituted by a plurality of steel balls (6), and a plurality of spacer balls (16) smaller than the steel balls (6) and having elasticity. At least one spacer ball (16) is always present in the no-load rolling path (21). The length of a gap in which neither the steel balls (6) nor the spacer balls (16) are present in the rolling element rolling path (23) is 50% or less of the diameter of the steel balls (6), regardless of the position of the rolling elements. Consequently, it is possible to provide a rolling guide device that is easy to assemble and has good operability and excellent repeated positioning accuracy.

A compliant mount for an aircraft, for attaching equipment (such as a latching unit, for example) to a structural member of the aircraft, the compliant mount comprising: a mounting member for attachment to the structural member of the aircraft; a receptacle for supporting the equipment, the receptacle being coupled to the mounting member along a longitudinal axis; and one or more spring elements arranged to resiliently bias the receptacle into alignment with the longitudinal axis and to allow angular movement of the receptacle away from the longitudinal axis. Also provided is an aircraft equipment assembly comprising such a compliant mount, and aircraft equipment supported by the receptacle, and an aircraft having one or more such equipment assemblies. The aircraft may be a folding wingtip aircraft and the equipment assembly may be part of a folding wingtip actuation mechanism.

Motion guidance device, which includes: a rail element (20) with a roller element roller groove (22) extending in a longitudinal direction; a movable element (30, 90, 100) with a loaded roller element rolling groove (33, 103) facing the roller element rolling groove (22) of the rail element (20), an unloaded roller element rolling groove (34, 104) extending parallel to a direction in which the roller element rolling groove (22) extends, and a direction-change guide groove (35) connecting the loaded roller element rolling groove (33, 103) and the unloaded roller element rolling groove (34, 104); and a plurality of rolling elements (40) arranged on an endless circulation path comprising a loaded rolling element rolling path (50) arranged between the rolling element rolling groove (22) of the rail element (20) and the loaded rolling element rolling groove (33, 103) of the movable element (30, 90, 100), an unloaded rolling element rolling path (60) arranged between the rail element (20) and the unloaded rolling element rolling groove (34, 104), and a direction change path (70) arranged between the rail element (20) and the direction change guide groove (35), and A DF structure with four continuous circulation paths is formed by forming a pair of left and right projections (21) which extend in a width direction from an upper section of the rail element (20) and a total of four roller element roller grooves (22), wherein each of the pair of left and right projections (21) is provided with a roller element roller groove (22) on its upper and lower sections. wherein only the direction change paths (70), which configure two endless loop paths formed on the respective upper section of the pair of left and right projections (21), are formed by a complex turn and have a plurality of change points, and wherein the direction-change paths (70), which configure two endless loop paths formed on the respective section of the pair of left and right projections (21), do not form a complex turn, wherein a region of the direction change guide groove (35), which is formed above an upper surface of the rail element (20) in order to connect an end of the loaded rolling element rolling groove (33, 103) with an end of the unloaded rolling element rolling groove (34, 104), is designed such that an outer circumference of the rail element (20) is bypassed.

The utility model provides a sliding locking mechanism and an overturning support. The sliding locking mechanism comprises a guide rail which is provided with at least one row of first positioning holes in the extending direction; the sliding seat is arranged on the guide rail and can slide along the guide rail, at least one first through hole is formed in the sliding seat, and when the sliding seat slides along the guide rail, the first through holes can be sequentially opposite to the first positioning holes; the first locking assembly is arranged on the sliding seat and comprises a first locking piece, and the first locking piece has a locking state that the first locking piece is simultaneously limited in the first positioning hole and the first through hole which are opposite to each other so as to lock the sliding seat on the guide rail, and the first locking piece is separated from the first positioning hole so as to unlock the sliding seat on the guide rail; in the unlocking state, the sliding seat can slide along the guide rail. The gap of the sliding locking mechanism is small, stable and reliable locking can be formed, shaking of the night vision device is avoided, adjustment operation is convenient and fast, one-hand operation can be achieved, and meanwhile the overturning support is light in weight and comfortable to wear.

The utility model belongs to the technical field of guide rail fastening interfaces, and particularly relates to a movable guide rail fastening interface of an adjustable compatible guide rail, which comprises a connecting main body, an adjusting piece is connected onto the connecting main body in a sliding manner, a bolt hole is arranged on the adjusting piece, and a connecting port is arranged at the bottom of the connecting main body. One side of the adjusting piece and the connecting opening form an inverted-trapezoid-shaped connector, and the inverted-trapezoid-shaped connector is movably connected with an inverted-trapezoid-shaped guide rail strip. Inconvenience caused by machining errors or design differences can be eliminated, and the purpose of effective compatible use of almost all similar guide rails is achieved.

The invention relates to a bearing assembly (1, 1', 1" ) comprising a mover (10, 10', 10") and an aerostatic bearing unit (20, 20', 20"). The mover has a longitudinal axis (X), in the direction of which the mover can be linearly moved back and forth relative to the bearing unit (20, 20', 20") and on which a central tool action point (31) of a tool (30) fastened or to be fastened to the mover lies. The mover comprises at least two wings (11a, 11b, 11'a, 11'b, 11"a, 11"b, 11"c, 11"d) arranged at an angle to one another, said wings being clamped in the aerostatic bearing unit and each extending radially with respect to the longitudinal axis (X) of the mover. The invention also relates to a linear axis system (100) having a bearing assembly of this type and to an installation for producing and / or processing components, said installation comprising a linear axis system (100) of this type.

A shoe (1) for hydrodynamic bearing configured to be placed in contact with a lubricating fluid is described, comprising a base (2) made of metallic material; a coating (3) made of insulating material coupled to the base (2); and a temperature probe (4); wherein the probe (4) comprises a temperature sensor (5) positioned inside the coating (3) and a conducting wire (6) extending between a first end (61) connected to the temperature sensor (5) and a second end (62) facing outside the coating (3) and configured to be in contact with the lubricating fluid.

To provide a table device which can be made compact.SOLUTION: The table device includes a base portion, a first / second linear motion mechanism, a first / second support portion, a table portion rotatably supported with respect to the second support portion, a third / fourth / fifth linear motion mechanism, a first / second / third drive unit, and a first slide-side arc-shaped surface, A second swing mechanism and a third slide-side arc-shaped surface that include a second slide-side arc-shaped surface attached to the fourth slider, a second guide-side arc-shaped surface along the second slide-side arc-shaped surface, and a second guide portion attached to the second moving portion, and guide a swing motion of the table portion, a second swing mechanism and a third slide-side arc-shaped surface that include a second slide-side arc-shaped surface attached to the fourth slider, a second guide-side arc-shaped surface along the second slide-side arc-shaped surface, and a second guide portion attached to the second moving portion, and guide a swing motion of the table portion, and a third rocking mechanism having a third sliding part attached to the fifth slider and a third guide side circular arc surface along the third sliding side circular arc surface, including a third guide part attached to the third moving part, and guiding the rocking motion of the table part.SELECTED DRAWING: Figure 1

An apparatus is provided that includes a diamond bearing surface positioned in sliding engagement with an opposing bearing surface of a diamond reactive material. The opposing bearing surface is hardened via a material treatment.

The utility model provides a ball circulating guide rail matched with a motor, which relates to the technical field of guide rails and comprises a guide rail body, a ball sliding block is movably sleeved on the outer surface wall of the guide rail body, two adsorption boxes are fixedly connected to the outer surface wall of the ball sliding block, and a group of mounting grooves are formed in one side of the outer wall of each adsorption box. And exhaust fans are fixedly inserted into the inner surface walls of the two sets of mounting grooves correspondingly, and the outer surface walls of the two adsorption boxes fixedly communicate with a set of adsorption pipes correspondingly. According to the utility model, under the interaction of all the components of the device, the working environment of the guide rail is purified and protected, impurities are effectively prevented from being drawn into the contact part of the ball and the rail, abrasion dents generated on the surface of the ball due to the invasion of the impurities are avoided, and the problems of running lagging, positioning deviation and the like of the sliding block are further avoided; the overall precision of the guide rail is fundamentally improved, normal operation of equipment is powerfully ensured, and the service life of the equipment is remarkably prolonged.

The utility model discloses a wear-resistant annular guide rail sliding seat which comprises an annular guide rail, a bearing sliding seat is installed at the top of the annular guide rail, idler wheels are fixedly installed at the bottoms of the four corners of the bearing sliding seat, idler wheel grooves are formed in the two sides of the annular guide rail, and wear-resistant pieces are installed on the surfaces of the two sides of the idler wheels. The two ends of the wear-resisting piece are locked to the outer side of the rolling wheel through screws, the outer wall of the wear-resisting piece is attached to the inner wall of the rolling wheel groove, two symmetrically-arranged lubricating oil bins are formed in the top of the bearing sliding base, sealing covers are fixedly installed at the tops of the lubricating oil bins, sealing pieces are fixedly connected to the bottoms of the sealing covers, and a plurality of installation grooves are formed in the bottom of the bearing sliding base. According to the bearing sliding seat, the abrasion degree of the bearing sliding seat, the idler wheels and the abrasion-resistant balls is reduced, and the movement continuity of the bearing sliding seat is improved.