16 results about "Linear-motion bearing" patented technology

The utility model discloses a movable solar panel support, which comprises a supporting seat, moving wheels, a solar panel, a supporting block and an adjusting assembly, the solar panel is arranged on the upper surface of the supporting seat, the moving wheels are arranged in the middle of the lower surface of the supporting seat, and the adjusting assembly is used for adjusting the supporting block to ascend and descend and changing the height of the supporting seat. And the moving wheels are suspended or landed. A sliding block slides in the length direction of a sliding groove, the sliding block conducts rotation limiting on a bearing sleeve, rotation motion is converted into linear motion, the bearing sleeve can ascend and descend on a screw rod, a connecting plate is driven to ascend and descend along with the bearing sleeve, and therefore a supporting block is driven to ascend, a supporting base is driven to ascend along with the supporting block, and moving wheels make contact with the ground, and a worker can push the supporting base conveniently; and the solar panel is pulled to a place with sunlight to continuously absorb the sunlight, so that the practicability is improved.

The utility model relates to a novel composite linear motion bearing, which belongs to the technical field of linear motion bearings and comprises a linear bearing body, one end of the linear bearing body is fixedly connected with a circular flange, and a detachable support is mounted outside the circular flange. According to the novel combined type linear motion bearing, by arranging a reset spring and a fixing block, an elastic movable sleeve can elastically move outside a mounting sleeve, and when a linear bearing body is inserted into the mounting sleeve, the linear bearing body can extrude a positioning steel ball; the linear bearing bodies can be conveniently and completely inserted into the mounting sleeve, the elastic movable sleeve is driven to move through the elastic force of the reset spring, the positioning steel balls are extruded by the fixing blocks, the linear bearing bodies can be fixed through the positioning steel balls by arranging the positioning holes, and then butt joint and fixing of the two linear bearing bodies are completed. And installation by workers is facilitated, and extra fixing tools are not needed.

The invention relates to the field of industrial robot bearings, in particular to a linear motion bearing and a manufacturing process thereof. A linear motion bearing comprises a groove rod, a sliding cavity is formed in the groove rod, a ball is installed in the sliding cavity from one end of the sliding cavity, the ball partially protrudes out of the sliding cavity, and detachable battens are connected to the left side and the right side of a ball seat through bolts. A manufacturing process of a linear motion bearing comprises the steps that S1, a plurality of ball seats are prepared, and a plurality of balls are installed in the ball seats; s2, a plurality of ball seats are installed between the two groove rods, and the two side plates are blocked at the ends of the two groove rods; s3, four sets of slide way components composed of the two groove rods and the two side plates are prepared; s4, the four sets of slide way components are annularly installed between the two annular plates, and the two annular plates are fixed through the four outer plates; and S5, the two circular ring plates and the four outer plates are installed in an outer cover for protection. Parts can be helped to slide linearly, and the balls can be replaced after being damaged.

The invention discloses a device for CPD dummy respiratory movement, and relates to the technical field of in-vehicle living body detection target objects, the device is arranged in a CPD dummy chest, the device comprises a driving motor, a driving gear, a driving rack, a sliding shaft mounting seat, a linear motion bearing, a sliding shaft and a respiratory pushing plate, the driving motor is fixed to the driving gear through a driving shaft of the driving motor, and the driving gear is fixed to the driving rack through a linear motion bearing; the driving rack is fixed to the sliding shaft in the axial direction, the driving gear is meshed with the driving rack, the sliding shaft is slidably connected with the sliding shaft installation base through the linear motion bearing, the breathing pushing plate is fixed to one side of the sliding shaft, and the driving motor drives the driving gear to rotate clockwise or anticlockwise. The sliding shaft is driven to linearly move through meshing transmission of the gear and the rack, so that breathing movement of the dummy is realized; according to the technical scheme, breathing movement simulation is achieved in a motor driving and gear and rack transmission mode, the operation difficulty is small, flexible adjustment is achieved, and the method and device can be suitable for application scenes with high requirements for the breathing frequency and amplitude.

The application discloses a device for CPD dummy breathing movement, and relates to the technical field of in-vehicle living body detection targets, which is arranged in a chest cavity of a CPD dummy and comprises a driving motor, a driving gear, a driving rack, a sliding shaft mounting seat, a linear motion bearing, a sliding shaft and a breathing push plate. The driving motor is fixed with the driving gear through a driving shaft thereof, the driving rack is fixed on the sliding shaft in an axial direction, the driving gear is engaged with the driving rack, the sliding shaft is slidably connected with the sliding shaft mounting seat through the linear motion bearing, and the breathing push plate is fixed on one side of the sliding shaft. The driving motor drives the driving gear to rotate clockwise or counterclockwise, and drives the sliding shaft to move linearly through the meshing transmission of the gear and the rack, so that the breathing movement of the dummy is realized. The technical scheme of the application adopts the motor driving and gear and rack transmission mode to realize the breathing movement simulation, has small operation difficulty and good flexible adjustment, and can be applied to application scenes with high requirements on breathing frequency and amplitude.

The utility model discloses a bulk machine device capable of realizing accurate positioning unloading through horizontal movement, which is characterized in that a control valve group is arranged on a blanking pipe, the lower part of the control valve group is connected with one end of a first rotary arm through a first movable rotating shaft, and the other end of the first rotary arm is connected with one end of a second rotary arm through a second movable rotating shaft; the first rotary arm and the second rotary arm are both closed gasification chutes, the bottom of the other end of the second rotary arm is connected with a material bulk head, the material bulk head is supported on a bearing platform, and the bearing platform is arranged on a linear guide rail, is driven by a motor to move and simultaneously drives the material bulk head to move. And the first rotary arm and the second rotary arm are freely folded and unfolded to adapt to different positions of the material bulk head. Through the connection of the movable rotating shafts of the two sections of gasification chutes and the linear motion bearing platform driven by the motor, the bulk head can flexibly move according to loading and unloading requirements, the adaptability and the flexibility of equipment are remarkably improved, and the bulk head can meet wider loading and unloading requirements.

The invention relates to the technical field of mechanical structure optimization, in particular to an ejector rod mechanism for variable pitch propeller pitch measurement, which comprises a self-lubricating roller bearing, a displacement rod, a support, a reset mechanism and a dustproof limiting assembly. Through rolling contact between the self-lubricating roller bearing and the cam, angular displacement is accurately converted into axial linear displacement of the displacement rod, through cooperation with double-point radial constraint of the linear motion bearing and the category limiting assembly, it is ensured that the motion trail is stable, and the propeller pitch measurement precision is improved, and through interference fit between a dustproof ring in the dustproof limiting assembly and the displacement rod, the propeller pitch measurement precision is improved. Foreign matters such as dust and carbon powder are effectively prevented from entering the cavity, clamping stagnation caused by movement is avoided, the reliability of the mechanism in a severe environment is guaranteed, a reset spring in the reset mechanism provides reset elastic force, a displacement rod can rapidly and reversely move when the pitch of a propeller is decreased by adopting a piano steel wire material, real-time dynamic response is achieved, and the reliability of the mechanism is improved. And the real-time measurement requirement of the blade angle is met.

A linear resonance scanning apparatus (100) comprises an electromagnetic drive unit (132) comprising a coil (140) wound about a core (138), the electromagnetic drive unit (132) having a field output end (134). A linear motion bearing assembly (106) is configured to carry a permanent magnet (130), the linear motion bearing assembly (106) having a longitudinal axis of reciprocating motion. A biasing element (122, 126) is disposed adjacent an end of the linear motion bearing assembly (106) to serve as a buffer for motion along the longitudinal axis of reciprocating motion. The permanent magnet (130) has a surface located opposite the field output end (134) of the electromagnetic drive unit (132) in spaced relation to the field output end (134) of the electromagnetic drive unit (132). The permanent magnet (130) is laterally offset with respect to the core (138) so that the core (138) substantially does not overlie the permanent magnet (130) when at rest.

Motor-operated valve (10) comprising: an engine (20); a linear motion shaft (50) which receives a power of the motor (20) and moves linearly, and which has a valve element (60) which opens and closes a valve port (18) formed at one end of a valve body (11B); and a cylindrical receiving member (25) disposed in the valve body (11B), the cylindrical receiving member (25) having a non-circular hole (26D) and receiving the linear motion shaft (50); an elastic member (28) disposed in the cylindrical receiving member (25) and contacting an outer peripheral surface of the linear motion shaft (50) and regulating a movement of the linear motion shaft (50) in a radial direction; and a non-circular shaft portion (50B) formed in the linear motion shaft (50), which is loosely fitted to the non-circular hole (26D) formed in the valve body (11B) so as to prevent the linear motion shaft (50) from rotating and whose cross section is non-circular; wherein the cylindrical receiving member (25) has a cylindrical main body portion (26) having the non-circular hole (26D) on one end side and a linear motion bearing (27) mounted on the other end side of the cylindrical main body portion (26), and wherein the elastic member (28) is formed of an arc in a shape of an annular ring, and an outer peripheral portion thereof is accommodated between the cylindrical main body portion (26) and the linear motion bearing (27).

The invention provides a crane beam detection device, and relates to the technical field of crane beam detection. Comprising a detection device, a walking device and a stabilizing device. The walking device comprises a structural frame; the structural frame is located on a crane rail arranged on the top of the crane beam, wheels matched with the crane rail are installed below the structural frame, and a driving mechanism for driving the wheels to move is arranged in the structural frame; the detection device comprises a support frame and a camera; the stabilizing device comprises clamping pieces symmetrically arranged on the two sides of the crane rail. The clamping piece comprises a first linear motion bearing, a second linear motion bearing and a bent shaft, the first linear motion bearing is installed in the middle of the vertical part, the second linear motion bearing is installed at the end, away from the structural frame, of the inclined part of the bent shaft, and the second linear motion bearing supports a lower jaw of the rail head; according to the technical scheme, the problem that in the prior art, a crane beam needs to be detected with naked eyes through manual climbing is solved.

The invention discloses an active and passive integrated vibration isolation device based on soft and hard rubber and a voice coil motor. The active and passive integrated vibration isolation device comprises a bottom plate, a supporting ring and six supporting legs, and each supporting leg comprises a gapless spherical hinge, a piston, a piston upper cover, a linear motion bearing, soft rubber, hard rubber, an outer sleeve, an outer sleeve lower cover, an impedance head and a vibration isolation device connecting part; the gapless spherical hinges at the two ends of the single supporting leg are connected with the bottom plate and the supporting ring through connecting blocks. The linear motion bearing is mounted at the upper part of the outer sleeve; rubber on two sides of the linear motion bearing is symmetrically arranged; the piston rod penetrates through the center of the bearing; the gapless spherical hinge is inserted into the inner wall of the piston; the bottom of the piston is connected with a coil of the voice coil motor through screws. The voice coil motor permanent magnet is connected with the outer sleeve lower cover through a stud; the outer sleeve lower cover is connected with the outer sleeve through a fastening screw; the outer sleeve lower cover is connected with the impedance head through a stud; and the impedance head is connected with the gapless spherical hinge through the connecting block. The device has the characteristics of micro-vibration vibration isolation self-adaption, high efficiency and stable work.

To provide a linear motion bearing having an oil film lubrication structure that is simple in structure, low in cost, provides stable and smooth lubrication in motion, and has a high load capacity. [Solution] The linear motion bearing of the present invention comprises a slide base 1, a slide rail 2, a rod bearing 3, an oil reservoir 22, and a grease spring 23. One or more inner grooves are provided on the opposing surfaces of the slide rail 2 and the slide base 1, and the shape of the inner groove 21 of the slide rail 2 is symmetrical to the shape of the inner groove 11 of the slide base 1. The space between the inner groove 11 of the slide base 1 and the inner groove 21 of the slide rail 2 is an installation space for the rod bearing 3. An oil reservoir 22 is recessed into the inner groove 21 of the slide rail 2 at a predetermined depth and height, and a grease spring 23 having elasticity for expansion and contraction is installed in the oil reservoir 22. The cross-sectional shape of the rod bearing 3 is a polygonal polygon, and at least one angle of the polygonal polygon is a circular arc angle.

The utility model relates to the technical field of grinding equipment, and discloses a reciprocating type grinding machine for clamping fiber oilstones, which comprises a shell, a grinding wheel and a driving device, the air inlet component is provided with an air inlet channel; the turbine is arranged at an air outlet of the air inlet component; the swing arm is eccentrically connected with the turbine; the connecting piece is hinged to the swing arm; the telescopic main shaft is used for clamping fiber oilstones, the telescopic main shaft is arranged in the shell, at least one part of the telescopic main shaft extends out of the shell, and the telescopic main shaft is connected with the connecting piece; the linear motion bearing sleeves the telescopic main shaft and is attached to the inner wall of the shell; the locking lantern ring is arranged on the telescopic main shaft in a sleeving mode and used for locking the fiber oilstone to the telescopic main shaft. Better structural strength is achieved, and the fiber oilstone is not prone to breakage; and clamping is flexible, adaptability is high, consumed fiber oilstones can be pulled out conveniently, and replacement operation is convenient.

The present invention relates to a cable manhole cover control system, wherein an inner cover is provided between the manhole cover body and the manhole seat, a plurality of linear optical rail lock rods penetrating through movable holes and pluggable on the inner cover are provided in a mechanical transmission device protection box, a round flange linear motion bearing is installed on the mechanical transmission device protection box and located at the movable hole, a locking rod linkage is provided in the linear optical rail lock rod in the mechanical transmission device protection box, one end of the locking rod linkage is rotatably connected with a lock core linkage, a worm gear reduction motor is also installed in the mechanical transmission device protection box, a micro-motion travel switch is provided in the mechanical transmission device protection box and located at one side of the linear optical rail lock rod, and a main control module electrically connected to the worm gear reduction motor and the micro-motion travel switch is installed in the mechanical transmission device protection box. The present invention can realize the anti-theft of the manhole cover and the intelligent control of the unlocking and locking functions of the manhole cover.

A simple oil film lubrication structure for a linear motion bearing includes at least two polygonal rod-shaped bearings paired with a slide block and a slide rail. The polygonal rod-shaped bearings are positioned in at least one recessed groove between the opposing surfaces of the slide block and the slide rail. Each recessed groove on both sides of the slide rail has an oil reservoir with a predetermined depth and height. An oil-applying spring with telescoping and binding elasticity is installed in the oil reservoir. The outer diameter of the oil-applying spring is equal to or smaller than the predetermined depth and height of the oil reservoir in the recessed groove of the slide rail. This constitutes a practical and innovative structure for simple oil film lubrication, effectively achieving simple oil storage structure, low cost, high lubrication efficiency, quiet and smooth movement, and dust and scale prevention.