745results about "Linear bearings" patented technology

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.

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 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.

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 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.

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 relates to the technical field of adjustable guide rails, and discloses an adjustable guide rail convenient to assemble, which comprises a slide rail body, mounting racks are fixed at two ends of the slide rail body, sliders are fixed on the outer surfaces of the mounting racks, and a frame is slidably connected to one end, far away from the mounting racks, of each slider. A connecting frame is arranged on the outer surface of the frame, and a positioning assembly and a limiting assembly are arranged on the outer surfaces of the frame and the connecting frame; according to the adjustable guide rail convenient to assemble, through the arrangement of the positioning assembly, when installation is needed, the fixing column is installed in the butt joint groove, the end of the abutting rod can be driven to abut against the inclined face of the clamping plate by pressing the pressing plate, the clamping plate is moved into the limiting groove, and mutual limiting of the frame and the connecting frame is achieved; and therefore, the installation efficiency of the bolt cannot be influenced by deviation. During dismounting, the clamping plate is separated from the limiting groove to relieve limiting through attraction of the first permanent magnet and the second permanent magnet, and normal separation can be achieved.

A dustproof low-maintenance cost screw rod guide rail module is characterized by comprising a linear guide rail assembly, a screw rod module, a base, a motor, a dust cover and an L-shaped connecting table, no rolling body is contained in the linear guide rail assembly, the slider is assembled in the arc-shaped sliding groove through the arc-shaped protrusion and is slidably assembled on the linear guide rail, and the dust cover is assembled on the outer side of the screw rod module, the screw rod guide rail module provided by the utility model can set the concertina dustproof cover on the outer side of the screw rod module, the concertina dustproof cover is telescopic, cannot affect the back-and-forth reciprocating movement of the screw rod module, can prevent the dust and sundries from the outside from entering the screw rod module, cannot affect the operation of the screw rod module, the linear guide rail assembly is designed without rolling body, the slider is assembled in the arc-shaped sliding groove through the arc-shaped protrusion and reciprocates on the linear guide rail, the sundries from the outside entering the linear guide rail device cannot cause blockage, and cannot affect the operation of the linear guide rail.

To provide a linear motion guide device capable of achieving stable oil supply by reducing the influence of gravity on lubricating oil in an oil supply groove.SOLUTION: In a linear motion guide device, an end cap attached to a slider body has an oil feeding hole and an oil feeding groove connecting the oil feeding hole and a direction changing passage, and the oil feeding groove has a first oil feeding groove having a bottom surface parallel to a surface of the end cap facing the slider body, a second oil feeding groove disposed on the bottom surface of the first oil feeding groove along the first oil feeding groove, and an oil passage dividing groove formed on the bottom surface of the first oil feeding groove so as to divide the second oil feeding groove. The oil passage dividing groove is a recess having a width and a depth larger than the width and the depth of the second oil groove.SELECTED DRAWING: Figure 2

The application discloses a kind of slab / rectangular blank crystallizer surface abrasion state detector and its detection method, belong to detection equipment technical field;Surface abrasion state detector includes: base, horizontal adjusting mechanism, lifting mechanism, rotating mechanism;The base is connected by two frames one and two frames two;The horizontal adjusting mechanism includes base plate one and connecting plate two, the base plate one can be movably installed on frame two top, and the connecting plate two is located on base plate one top;The lifting mechanism is installed on connecting plate two, and the rotating mechanism is connected with rack in lifting mechanism, and the rotating mechanism includes mounting bracket, and three-dimensional profile detector is fixedly installed on the mounting bracket, and the detection of slab / rectangular blank crystallizer surface abrasion state is completed by three-dimensional profile detector, simple structure, convenient to use.

The utility model belongs to the technical field of linear sliding rails, and particularly relates to a high-stability linear guide rail ball sliding block which comprises a bearing sliding block and a ball arranged on the inner wall of the bearing sliding block, runway type ball double-sliding sealers are arranged on the two sides of the bearing sliding block, each runway type ball double-sliding sealer comprises an internal area and an external area, and the internal area and the external area are arranged on the bearing sliding block. The balls are contained in the runway type ball double-sliding sealer through a rotary fixator, and the balls in the built-in area make contact with a sliding rail. A runway type ball double-sliding sealer is adopted, a rotary fixator serves as a positioner of balls, when the balls expand, the rotary fixator is driven to rotate to replace the balls by means of the friction force relation between the balls and the fixator, the heated balls are located on the outer side, a high-speed sliding block and fins are combined for cooling, and along with adding of wind power cooling, the temperature of the high-speed sliding block is lowered. The heat dissipation burden of the lubricating oil is reduced, the problem of rotation resistance caused by thermal expansion is solved, and the use amount of the lubricating oil is reduced.

A single-row ball sliding block guide rail device is characterized in that the single-row ball sliding block guide rail device comprises a single guide rail, a single sliding block, balls, a ball retainer, an end cover and a sealing dustproof piece, a Y-shaped groove for the single sliding block to slide is formed in the middle of the upper portion of the single guide rail, and a row of ball grooves are formed in the bottom of the single sliding block; the linear guide rail is designed into a structure that the single-row ball sliding block and the single guide rail are assembled in a sliding mode, the structure is simple, only one row of balls are arranged, so that the linear guide rail is low in manufacturing cost and easy and convenient to install and maintain, the single-row ball sliding block and the guide rail are small in size and suitable for small mechanical equipment, only one row of balls are arranged, and the bearing capacity of the single-row ball sliding block is relatively low. The single-row ball sliding block is suitable for light-load or medium-load application occasions such as small automatic mechanical equipment, small precise instruments, small transmission mechanisms and small assembly lines, the friction force of the single-row ball sliding block is small, smooth movement can be achieved, and the single-row ball sliding block is suitable for high-speed movement occasions such as high-speed printers and high-speed conveying belts.

A novel linear guide rail device is characterized in that a linear guide rail, a sliding block and a wear-resisting piece are included, the two axial sides of the linear guide rail are each provided with a set of sliding grooves, an opening is formed in the bottom of the sliding block, the two sides of the opening are each provided with a set of sliding faces, and each sliding groove is composed of a row of square grooves, a row of upper arc grooves and a row of lower arc grooves; the linear guide rail device provided by the utility model is not provided with a ball design, is simple to assemble, does not cause blockage when external sundries enter the linear guide rail device, does not influence the operation of the linear guide rail, is free from maintenance, is convenient to operate, and is suitable for large-scale popularization and application. The sliding block reciprocates back and forth in the sliding groove formed in the linear guide rail through the sliding block face, the abrasion-resistant piece is assembled outside the sliding block face which completes reciprocating motion and slides away, the abrasion-resistant piece is assembled on the sliding block in a clamping mode, the abrasion-resistant piece can be replaced after long-time use and abrasion, and simplicity and convenience are achieved.

The utility model discloses a splicing type sliding rail, which relates to the technical field of sliding rails, and comprises a first sliding rail and a fixed block, a second sliding rail is arranged on one side of the first sliding rail, a rotating block is connected to one side of the first sliding rail through a rotating shaft, the fixed block is arranged on one side of the second sliding rail, a movable spring is arranged in the fixed block, and the movable spring is connected with the rotating block through a rotating shaft. And one side of the movable spring is connected with a guide rod penetrating through the fixed block. When the spliced sliding rail is used, the first sliding rail body and the second sliding rail body can be in butt joint according to requirements, a first connecting block is pulled, the first connecting block can drive an inserting rod to move in the direction away from a fixed block, then a rotating block is rotated to one side of the inserting rod through a rotating shaft, then the first connecting block is loosened, and under the reset effect of a movable spring, the inserting rod is inserted into the first sliding rail body. And the first connecting block drives the inserting rod to be inserted into the through hole of the rotating block, so that the first sliding rail and the second sliding rail are conveniently and quickly spliced, and different use requirements of users are met.

The utility model discloses a guide rail convenient for butt joint, which relates to the technical field of guide rail butt joint and comprises a guide rail body, a butt joint block is arranged at one end of the guide rail body, a butt joint groove is arranged at the bottom of the butt joint block, a first limit block, a first spring and a connecting rod are arranged in the butt joint groove, and a rectangular block is sleeved at the upper end of the butt joint block. A first limiting groove is formed in the other end of the guide rail body, the first limiting block is driven by the rectangular block to move horizontally, the first spring conducts extrusion, elastic potential energy is stored, and the first limiting block and the first limiting groove are matched to complete horizontal limiting of the guide rail; a T-shaped rod and a second spring are arranged in the moving groove, a second limiting block is arranged at one end of the T-shaped rod, the T-shaped rod drives the second limiting block to vertically move, vertical limiting of the guide rail and taking out of the limiting block from the matched groove can be completed in cooperation with the second limiting groove, disassembly can be completed, and the butt joint and assembly efficiency is improved.

A camera module according to an embodiment disclosed herein may include a lens assembly, an AF carrier in which at least a portion of the lens assembly is located, a camera housing configured to receive the AF carrier, an AF actuator configured to drive the AF carrier to move in an optical axis direction with respect to the camera housing and having a portion disposed on the AF carrier and the camera housing, a first guide groove extending on a surface of the camera housing in the optical axis direction, a second guide groove extending on a surface of the AF carrier in the optical axis direction and facing the first guide groove, at least one first AF ball disposed between the first guide groove and the second guide groove, and a recess disposed on one of the camera housing and the AF carrier and facing the at least one first AF ball. Various other embodiments are possible.

The utility model relates to a sliding rail assembly and a sliding rail device, and the sliding rail assembly comprises a rail which is provided with a rail groove along the length direction; the flexible seam shielding belt at least shields the track groove; and the shielding assembly is at least arranged between the track groove and the flexible seam shielding belt, and the shielding assembly is configured to move in the length direction of the track. The flexible seam shielding belt and the shielding assembly are arranged, the flexible seam shielding belt does not affect movement of the shielding assembly in the track groove in the length direction of the track, and the shielding assembly does not affect the shielding effect of the flexible seam shielding belt on the track groove, so that in the process that the seam shielding assembly moves in the length direction of the track, the seam shielding assembly can shield the track groove. The flexible seam shielding belt keeps shielding the track groove all the time so as to prevent sundries from entering the track groove to affect normal movement of the shielding assembly.

The invention provides a slide rail convenient for gap adjustment and a vehicle, and relates to the technical field of slide rails, the slide rail comprises a lower slide rail, an upper slide rail and a lower slide rail, the lower slide rail is internally provided with a mounting chamber, and the inner wall of the mounting chamber is provided with a fillet structure; the upper sliding rail is mounted in the mounting chamber and can move in the extending direction of the lower sliding rail; the roller support is installed on the upper sliding rail, and a plurality of clamping grooves are formed in the roller support; the pin rollers are rotatably installed at the clamping grooves, the pin rollers and the clamping grooves are detachably installed, the axes of the pin rollers are parallel to the movable direction of the upper sliding rail, the pin rollers are located at the gap between the upper sliding rail and the lower sliding rail, and the circumferential surfaces of the pin rollers make contact with the fillet structures. In the assembling process, clearance elimination is completed by selecting and using the pin rollers with different diameter specifications, the requirement for the precision of the production technology is low, the assembling production efficiency is remarkably improved, the contact area of the pin rollers and the lower sliding rail is larger compared with a traditional bearing, the upper sliding rail and the lower sliding rail are not prone to deformation under stress, and the upper sliding rail assembly is more stable and reliable in the moving process.

Elastic joint comprising: - an inner ring (1) provided with an axial opening (11) for being mounted on a shaft "E" and with an outer surface having: two opposite intermediate sections (13) having a decreasing cross-section towards opposite ends of said inner ring (1) and forming supporting zones for the metal wire cushions (3), and two end sections (14) having a smaller cross-section than the central section; - an outer ring (2) provided with an outer cylindrical surface (21) for mounting the ring on a support (S) and with an inner surface with two intermediate portions (22) having a decreasing cross-section towards opposite ends of the outer ring (2), facing the intermediate sections (13) of the inner ring (2); and - metal wire cushions (3) arranged between the inner ring and the outer ring (2).

The utility model discloses a screw type linear guide rail which comprises a sliding rail, a ball screw is rotatably installed on the sliding rail, a sliding seat in sliding fit with the sliding rail is assembled on the ball screw, a motor in transmission connection with the ball screw is fixedly installed at one end of the sliding rail, and the sliding seat comprises an upper sliding block and a lower sliding block which are combined to form a split structure; the fixed table is fixedly connected to the top of the upper sliding block. One end of the double-end stud is in screwed connection with the lower sliding block through threads, and the other end of the double-end stud penetrates through the upper sliding block and the fixed table; the nut is connected to the other end of the double-end stud in a screwed mode through threads. The compression spring is sleeved on the double-end stud between the fixed table and the nut; the dustproof sheet is fixedly connected to the bottom side, close to the edge, of the upper sliding block. According to the utility model, the maintenance process is simplified by utilizing the design of the split sliding seat, and meanwhile, the long-term stable performance is ensured through an effective dustproof and lubricating structure.

The utility model discloses a crossed roller linear motor guide rail pair, which relates to the technical field of linear motor guide rail pairs and comprises a guide rail body, channels are arranged on two sides of the guide rail body, a mounting groove is arranged on a sliding block slidably arranged on the guide rail body, and connecting grooves corresponding to the channels are arranged at the bottom of the inner side of a sliding frame mounted in the mounting groove. A limiting frame is fixedly arranged on the outer side of the sliding frame, a straight groove with a triangular section is formed in the bottom of the limiting frame, a movable frame is connected to the lower portion of the limiting frame, a movable groove with a triangular section is formed in the movable frame, a straight groove is formed in the middle of the movable groove and correspondingly matched with the straight groove, and bent grooves are formed in the two ends of the movable groove. The bent grooves in the two ends are correspondingly matched with the U-shaped groove, the U-shaped groove is formed in the bottom of the connecting piece, the two ends of the moving groove are communicated with the channel to form an annular roller groove, and the annular roller groove is ingeniously constructed, so that the structure of the whole sliding block is more compact, and occupation of external space is reduced.

The utility model discloses a roller guide rail convenient to disassemble, which relates to the technical field of curved roller guide rails and comprises a sliding table mechanism, and roller guide rails are symmetrically mounted on the sliding table mechanism. The first support arm assembly and the second support arm assembly are movably connected with the mounting piece; according to the utility model, after the installation of the track I and the lower workbench is completed, the pin roller and the pin roller retainer are connected with the track I, then the track II is connected with the track I, at the moment, the upper workbench is buckled and pressed on the symmetrical track II, and the installation of the roller guide rail is completed by connecting the upper clamping block in the upper workbench with the clamping column of the track II; during disassembly, the upper working table is lifted upwards, the second rail is pulled out, and due to the fact that the assembly and disassembly processes are simple, the risk that parts are damaged due to misoperation is reduced, the maintenance cost is reduced, meanwhile, the equipment downtime is shortened, and the production loss is reduced.

The application discloses an adjustable liquid resistance static pressure sliding block device, which comprises a sliding block body, an oil inlet is formed in the upper end of the sliding block body, upper and lower oil cavities are respectively formed in the upper and lower surfaces of the sliding block body, and front and rear oil cavities are respectively formed in the front and rear surfaces of the sliding block body; two gap throttling mechanisms are fixedly installed at the left and right ends of the sliding block body, and the gap throttling mechanisms are configured as single-layer or multi-layer throttling structures according to different liquid resistance. The application is a modular assembly for constituting a static pressure guide rail, and can adjust the throttling liquid resistance of hydraulic oil in four oil cavities through the device. The wide-range liquid resistance adjustment can adjust the liquid resistance of the gap throttling device by increasing or decreasing the number of passage cover plates and gap throttling pieces. The adjustment mode is suitable for the case that needs to be adjusted by a large amplitude of liquid resistance; and when more fine liquid resistance adjustment is needed, the liquid resistance can also be adjusted by changing the thickness of the gap piece, without changing the structure of the cover plate.