2490results about "Linear bearings" patented technology

A slide rail assembly (20) includes a first rail (22), a second rail (24) a blocking feature (28) arranged on the first rail (22), two operating members (31, 32) and a locking member (30) . The two operating members (31, 32) and the locking member (30) are movably mounted on the second rail (24). When the second rail (24) is located at a predetermined position and when the locking member (30) is in a locking state, the locking member (30) and the blocking feature (28) are configured to block each other to prevent the second rail (24) from being moved away from the predetermined position. When one of the two operating members (31, 32) is operated, the locking member (30) is configured to be driven to move from the locking state to an unlocking state to allow the second rail (24) to be moved away from the predetermined position.

A linear guide includes a first rail, a second rail, and a retainer. The first rail has a first opposite side facing a second opposite side of the second rail. The first opposite side has a first raceway surface. The second opposite side has a second raceway surface. The retainer includes a plurality of rolling elements roll on the first raceway surface and the second raceway surface. A rotatable toothed wheel is pivotally connected to the retainer. A plurality of first protrusions are planted at equal intervals on the first opposite side other than the first raceway surface. A plurality of second protrusions are planted at equal intervals on the second opposite side other than the second raceway surface. The toothed wheel meshes with the first protrusions and the second protrusions to prevent the retainer from creeping on the first rail and the second rail.

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 relates to a device 1 for the linear movement of a gantry of a computed tomography scanner. The device comprises a carriage 2 with a first part 4 of a measuring system and a guide rail 5 received in a recess 11 in the floor 12. The guide rail 5 has a second part 8 of a measuring system in a recess 7, the recess 7 being covered by a cover plate 9. The carriage 2 has a friction roller 3 which rolls on a guide shaft 10 projecting from the floor 12 and received in a groove of the guide rail for linear movement.

The system for generating electrical energy enables the generation of electrical energy in a linear motion device having a first device component and a second device component, wherein the second device component is supported on the first device component via rolling elements (WK), such that the second device component is linearly movable relative to the first device component. The system for generating electrical energy comprises: the rolling elements (WK), which are movable along a direction of movement (BR) during operation of the linear motion device;a device (PM) for generating a static magnetic field in a spatial region (RB) which the rolling elements (WK) must traverse one after the other during operation of the linear motion device during a movement along the direction of movement (BR), wherein the rolling elements (WK) consist of a magnetically permeable material, so that the rolling elements (WK) are suitable for influencing the magnetic field depending on the position of the rolling elements (WK) in the one spatial region (RB);and at least one induction coil (IS) with at least one coil turn, wherein the at least one induction coil (IS) is arranged stationary relative to the device (PM) for generating a static magnetic field in such a way that, due to a change in the position of the rolling elements (WK) during a movement of the rolling elements (WK) along the direction of movement (BR) through the one spatial region (RB), it experiences a change in a magnetic flux which induces an electrical voltage (Uind) in the at least one coil turn;

The utility model belongs to the technical field of guide rails, and relates to a high-temperature-resistant linear rolling guide rail structure. The guide rail comprises a guide rail body, and ball fixing sliding blocks are arranged on the two sides of the guide rail body. In the using process, the ball fixing sliding block is in rolling fit with the guide rail body through the ball piece, and when the ball fixing sliding block moves along the track of the guide rail body front and back, external air can enter the ball fixing sliding block through the air inlet type alignment heat dissipation communication assembly and the auxiliary air inlet part; the air inlet and outlet cooling structures are additionally arranged, air is fed into the ball pieces which continuously operate, the ball pieces and the contact face, matched with the ball pieces, of the guide rail body are rapidly cooled, a part of heat can be discharged from the bottom of the guide rail body through the inner side heat removal and dissipation structures, and the auxiliary heat dissipation effect is achieved; rapid heat dissipation can be achieved in the running process of the linear guide rail, the high-temperature resistance of the guide rail is improved, and the service life of the rail is prolonged.

The invention relates to the field of linear guide rails, and discloses a linear guide rail module with an oil injection mechanism, which comprises a guide rail bottom plate, guide rail rods and a moving seat, the guide rail rods are mounted at two ends in the guide rail bottom plate, the moving seat sleeves the guide rail rods, and a guide rail cover plate is mounted on the guide rail bottom plate. A shielding structure is arranged at the left end of the upper face of the guide rail cover plate, dust blocking structures are arranged on the front side face and the rear side face of the guide rail bottom plate correspondingly, an oil injection base is arranged on the right side face of the movable base, and lubricating oil is added to oil coating cotton on the rotary oil coating structure through the oil injection mechanism. And meanwhile, when the movable seat moves, the transmission structure automatically drives the rotating structure to rotate with the guide rail rod as the axis, the oiling cotton can be driven to rotate around the guide rail rod, oiling on the guide rail rod is more thorough, and the oiling work quality is improved.

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.

A spindle drive for a vehicle steering gear, including a spindle having an external thread and a spindle nut having an internal thread being guided on the external thread. One of the spindle and spindle nut is rotatable and produces a corresponding translational movement of the other. The other of the spindle and spindle nut is guided via a plain bearing along the axis of rotation relative to a fixed structural part. The plain bearing is formed between sliding surfaces of a first and second bearing part, the first being provided on the other of the spindle and spindle nut and the second being provided on the fixed structural part. One of the first and second bearing parts is designed as an elevation, the other being designed as a recess. The recess surrounds the elevation on both sides in a rotational direction.

The invention belongs to the technical field of linear guide rails, and discloses a linear guide rail with a dustproof structure and a dustproof method thereof.The linear guide rail comprises a guide rail body, a guide rail sliding block is slidably mounted on the outer wall of the guide rail body, and a dust removal assembly is mounted on the side wall of the guide rail sliding block and comprises a dustproof box mounted on the side wall of the guide rail sliding block; a sealing assembly and a cleaning assembly are arranged on the inner wall of the dustproof box, a first connecting pipe is arranged in the dustproof box, the inner wall of the first connecting pipe is fixedly connected with dust suction pipes, the dust suction pipes are evenly distributed, an air pump is installed at the top end of the first connecting pipe, a dust collection box is arranged on one side of the top end of the air pump, and a maintenance plate is arranged above the dust collection box. Filter screens are evenly installed on the inner wall of the maintenance plate, dust removal is conducted on the linear guide rail in a dust suction mode through the dust suction pipe, the occupied space of an existing dustproof structure is reduced, and the space utilization efficiency is improved.

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 invention provides a flexible connection structure which comprises a lead screw, an axial push block connected to the lead screw and a globe roof installation connection block, a groove with an elastic globe roof structure is formed in the globe roof installation connection block, at least part of the axial push block is inserted into the groove, the elastic globe roof structure is in point contact with the two sides of the axial push block, and the elastic globe roof structure is in point contact with the two sides of the axial push block. The elastic ball top structure comprises a first point contact mechanism and a second point contact mechanism which are located on the two sides of the groove, the first point contact mechanism is an elastic point contact mechanism and comprises an elastic ball head plunger, the elastic ball head plunger comprises an elastic telescopic ball head, and the second point contact mechanism is a rigid point contact mechanism and comprises a ball push rod. The ball push rod comprises a rigid fixed ball head, and the two sides of the axial push block are in point contact with the first point contact mechanism and the second point contact mechanism respectively. The invention also provides an objective table. The objective table has the beneficial effect that the influence of transmission external force of the motion shaft of the objective table is well eliminated.

A rolling element retainer, a slide member and a limited-stroke linear guide are disclosed. Rolling elements are placed in the rolling element retainer to form the slide member. The slide member is disposed between two fixed-length rails to form the limited-stroke linear guide. The rolling element retainer includes a body, a plurality of accommodating holes distributed on the body for accommodating rolling element, and a plurality of apertures formed on the body and located between the accommodating holes. Lubricants are stored in the apertures, which can provide lubrication when the rolling elements roll. The body has a polygonal profile and at least four protruding portions protruding away from the body. The protruding portions extend continuously across all the adjacent accommodating holes. In this way, the rolling element retainer has better rigidity and more accommodating holes to accommodate more rolling elements, thereby improving the load capacity of the limited-stroke linear guide.

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.

To provide a linear motion unit which can achieve improvement of workability during replacement of a cover member.SOLUTION: A linear motion unit includes a linear motion mechanism and a housing. The linear motion mechanism includes a track member and a movement member. The housing includes a cover member that covers the linear motion mechanism. The cover member includes a fastener extending in a longitudinal direction. The fastener includes a first element, a second element, a first slider, and a second slider. The first slider and the second slider cause the first element and the second element to separate from each other as each moves in a direction away from the side where the other is positioned, and cause the first element and the second element to mesh with each other as each moves in a direction toward the side where the other is positioned. The first slider and the second slider can be fixed to the movement member. The fastener reaches at least one end in the longitudinal direction of the cover member. The one end of the cover member is configured to be openable and closable.SELECTED DRAWING: Figure 8

The utility model relates to a combined guide rail mechanism and a vehicle sliding-out system.The combined guide rail mechanism comprises a guide rail, a first guider and a second guider, multiple rows of parallel circulating balls are arranged in the guide rail, and the first guider and the second guider do reciprocating infinite circulating linear motion on the guide rail; a bearing object can do high-load and high-precision linear motion along the first guider or the second guider. A vehicle box sliding-out system comprises a combined guide rail mechanism, a driving device, a rack frame, a supporting frame, a bearing box and a sliding-out box, the supporting frame is fixed to a vehicle body, the bearing box slides back and forth at the lower end of the supporting frame through a long-strip-shaped opening, a chassis on the lower portion of the vehicle body does not need to be disassembled, and only the supporting frame needs to be fixed to the vehicle body. And the whole sliding-out box body can be arranged at the opening of the vehicle body. Two-stage stretching can be achieved, the using space of a vehicle is increased, and the device is neat, attractive and convenient to mount and dismount.

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.

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.

Mounting rail for mounting a guide carriage of a linear guide onto a guide rail, having a mounting contour which has side faces formed on mutually averted longitudinal sides of the mounting rail and has a top face situated between the side faces and has bearing faces arranged at the end sides and transversely to the longitudinal axis for bearing against the guide rail. One bearing face has a chamfer at the transition to the side faces and to the top face. The other bearing face adjoins the side faces and the top face at an angle of 90 degrees.

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.

The utility model discloses a linear guide rail with a damping anti-vibration function, which belongs to the technical field of mechanical engineering, and comprises a linear guide rail, the front end and the rear end of the linear guide rail are fixedly connected with guide strips, the top of the linear guide rail is connected with a sliding block in a sliding manner, and the sliding block is connected with the linear guide rail. Two fixing holes are formed in one side of the sliding block, a damper is installed on the top of the sliding block, a connector corresponding to the damper is installed on one side of the sliding block, the damper is installed on the sliding block, and the damping force of the damper is adjusted through damping liquid in the damper. Therefore, vibration generated when the sliding block slides is reduced, the abrasion and damage risks of equipment are reduced, the workpiece machining precision is improved, the service life of the equipment is prolonged, the maintenance cost is reduced, the downtime is shortened, the stability and reliability of a system are ensured, and the linear guide rail achieves the anti-vibration function.

A large-stroke air-floating nano-positioning platform, comprising a base (1) on which linear electric motors (2) are provided, the linear electric motors being connected to an air-floating platform (3), bearing platforms (4) being provided below the air-floating platform, a plurality of shock absorption assemblies (5) being embedded in the base and being spaced apart below each bearing platform, each shock absorption assembly comprising a base plate (50), shock absorption columns (51) being symmetrically arranged at the upper end of each base plate, a piston (52) being fitted in each shock absorption column, a cavity being formed between the bottom end of each piston and an inner wall of each shock absorption column, a sliding rod (53) being fixed to the upper end of each piston, an assembly joint (54) being connected to the top end of each sliding rod and being connected to the bottom end of a corresponding bearing platform, and a shock absorption spring (56) being arranged between each assembly joint and each shock absorption column and being sleeved on each sliding rod. The positioning platform can isolate external vibrations from the air-floating platform, thereby enhancing the stability and precision of sliding, and achieving highly accurate motion positioning.

A carriage slider and rail assembly is disclosed. The assembly may include a linear rail including one or more surfaces that define a channel. The assembly may include a carriage slider sub-assembly. The sub-assembly may include a slider configured to be axially displaceable within the channel of the linear rail. The sub-assembly may include one or more overload protection lobes including a first overload protection lobe positioned adjacent to a first end of the slider and a second overload protection lobe positioned adjacent to a second end of the slider. The sub-assembly may include one or more friction reducing portions. The overload protection lobes may make contact with the channel of the linear rail when an abuse load is applied to provide overload protection. The overload protection lobes may be configured to not make contact with the channel of the linear rail when an abuse load is not applied.

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.

The present invention relates to the technical field of linear guide rails, and discloses a combined linear guide rail slider, including a guide rail and a slide seat, the slide seat is slidably arranged on the guide rail, and also includes: a liquid cavity, the liquid cavity is opened inside the slide seat; a liquid outlet, the liquid outlet is opened on the bottom surface of the slide seat, and the liquid outlet is connected to the liquid cavity; a mounting box, the mounting box is fixed on the side of the slide seat; a storage box, the storage box is fixed on the side of the mounting box, and lubricant is accumulated inside the storage box. The present invention realizes the process of automatically extracting and injecting lubricant into the liquid cavity through the periodic adsorption and release of a micro motor and a magnetic block. This automatic lubrication system does not require frequent manual intervention, which improves the convenience and efficiency of operation.

The invention discloses a piezoelectric ceramic-based self-lubricating rolling composite structure guide pillar and guide sleeve device, which comprises a guide pillar assembly, a sliding sleeve assembly, a locking assembly and a guide sleeve main body, the guide pillar assembly comprises a guide pillar main body, the outer side of one end of the guide pillar main body is sleeved with a reset spring, and the end of the guide pillar main body is internally sleeved with an end cover; a bolt which is in threaded connection with the guide pillar main body is arranged in the end cover; the sliding sleeve assembly comprises a first C-shaped lubricating sleeve body, a limiting strip and a second C-shaped lubricating sleeve body which are sequentially arranged in the axial direction, one end of the first C-shaped lubricating sleeve body is connected with the reset spring in an attached mode, and the other end of the first C-shaped lubricating sleeve body is connected with the limiting strip in an attached mode. The inner side of the limiting strip is fixedly connected with the guide column main body, and the other side of the limiting strip is connected with the second C-shaped lubricating sleeve body in an attached mode. Three technical bottlenecks of lubrication failure, heat accumulation and maintenance difficulty of a traditional guide column and guide sleeve are systematically solved through cooperation of three technologies of rolling and sliding composite lubrication, modular locking and phase change active heat dissipation; and the reliability and the economical efficiency of the equipment are obviously improved.

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.

A linear motion guide unit includes a track rail having a first rail raceway surface and a second rail raceway surface each extending in a longitudinal direction, a first slider relatively movably attached to the track rail and having a first slider raceway surface facing the first rail raceway surface and a planar first mounting surface, and a second slider relatively movably attached to the track rail and having a second slider raceway surface facing the second rail raceway surface and a planar second mounting surface. The first slider is provided spaced apart from the second slider as viewed in the longitudinal direction. The second mounting surface is inclined with respect to the first mounting surface as viewed in the longitudinal direction.