195 results about "Plain bearing" patented technology

A height adjustment device includes a lower part, an upper part, and a height adjustment unit including a first spherical plain bearing, a second spherical plain bearing, a third spherical plain bearing, a first lifter, a second lifter, and a third lifter. The height adjustment device is configured to adjust a height of the upper part with respect to the lower part by driving the first lifter, the second lifter, and the third lifter.

The invention discloses a sliding bearing service life prediction method, and relates to the technical field of sliding bearing intelligent monitoring, and the method comprises the steps: an edge calculation node uses a quantum decryption algorithm to decrypt multi-modal time series data, and carries out the fractional order chaotic dynamics analysis, thereby achieving the prediction of the service life of a sliding bearing. Performing phase-space reconstruction on the multi-modal time sequence data, extracting fractal dimensions of phase-space attractors, and fusing chemical and crystal data to a quantum entanglement space by adopting a quantum variational auto-encoder to generate a high-dimensional data set fusing macroscopic and microscopic features; constructing a quantum enhanced life prediction model, performing parameter calibration by adopting quantum Bayesian optimization, and predicting a bearing health index according to the high-dimensional data set; according to the invention, the quantum-enhanced life prediction model is constructed through the quantum variational auto-encoder, and the model parameters are dynamically calibrated in combination with the quantum Bayesian optimization algorithm, so that the accuracy and reliability of bearing life prediction are improved.

The invention relates to the technical field of laser measuring instruments, in particular to a device and method for measuring the thickness of an oil film of a sliding bearing. Comprising a supporting ring fixedly connected to a working table, the supporting ring is in sliding connection with a sliding frame, the supporting ring is rotationally connected with a first threaded rod, the first threaded rod is in threaded connection with the sliding frame, the sliding frame is provided with an optical measuring head, a motor is installed in the working table, an output shaft of the motor is fixedly connected with a rotating shaft, and the rotating shaft is connected with the supporting ring. The supporting ring is provided with a friction frame. According to the invention, friction is generated between the flexible part and the sliding block and the sliding bearing, and the condition that the sliding bearing is influenced by friction force in the actual use process is simulated, so that the phenomenon that the reference of an oil film measurement result is poor as the viscosity and thickness of the oil film of the sliding bearing are changed after the oil film is rubbed in the use process is reduced; diversity and accuracy of sliding bearing oil film thickness measurement are increased.

The present application belongs to the technical field of sliding bearing, especially a tool for cleaning the oil groove of the sliding bearing bushing, aiming at the problem that the oil groove is difficult to clean and not clean enough, the following scheme is proposed, including an oil groove cleaner, a grip sleeve is arranged inside the oil groove cleaner, a first joint plate is connected to one side of the outer wall of the grip sleeve, and a limiting piece is arranged on the top and bottom outer walls of the first joint plate. The present application has the functions of removing and cleaning, can solve the problems of inconvenient on-site cleaning, low cleaning efficiency and poor cleaning effect, has simple tool structure, is convenient to use, can provide reference for other occasions with cleaning needs, has certain use value and popularization significance, and the oil groove cleaner can be inclined at a certain angle under the action of the two limiting pieces during use, conforms to ergonomics, can be more conducive to the operator to clean the waste in the bushing oil groove, and is more labor-saving.

The utility model discloses a radial spherical plain bearing which comprises an inner ring and an outer ring which are matched with each other, and further comprises two neck bushings, each neck bush comprises a sleeve part and a flange part formed at one end of the sleeve part, and the sleeve parts of the two neck bushings are respectively embedded into an inner hole of the inner ring from the two ends of the inner ring in an interference mode. The step surfaces of the flange parts of the two neck bushings are respectively pressed on the end surfaces of the two ends of the inner ring, and pin shaft holes which are axially aligned and are used for mounting a pin shaft in an interference manner are formed in the two sleeve parts. According to the utility model, the two neck bushings are additionally arranged in the inner ring, during installation, the pin shaft is in interference penetrating and sleeving fit with the pin shaft holes in the sleeve parts of the two neck bushings, the sleeve parts of the neck bushings are in interference fit with the inner hole of the inner ring, and the flange parts are arranged at the outer ends of the two sleeve parts; the end faces of the two ends of the inner ring are pressed and limited through the step faces of the flange parts, even for a small-size bearing structure, the axial movement preventing effect can be effectively achieved on the bearing, and the use stability of the bearing is greatly improved.

The invention belongs to the technical field of mariculture net cages, and discloses a high-pressure-water-driven netting cleaning robot net attaching cleaning mechanism which comprises a high-pressure water connector and a water inlet and further comprises a transmission main shaft, a propeller and a cleaning disc structure, and a cavitation jet cleaning structure is fixedly connected into the cleaning disc structure. Through the cooperation of the high-pressure water connector, the transmission main shaft, the sliding bearing and other structures, an efficient and stable high-pressure water transmission system is constructed, through the dynamic sealing structure and design formed by the sliding bearing, the sealing ring and the check ring, high-pressure water is transmitted to the transmission main shaft in a leakage-free mode on the premise that dynamic sealing is guaranteed, and the transmission efficiency is improved. And the water is conveyed to the cleaning disc structure through the hollow cylindrical structure, and then high-energy-density water jet is formed through the cavitation jet cleaning structure, so that concentrated release of water flow energy is guaranteed, the jet can penetrate through netting fiber gaps, various stubborn attached organisms are effectively stripped, and the cleaning effect is improved.

The invention discloses a radial and thrust combined sliding bearing for a gear transmission device, and relates to the technical field of bearings. The problems that a common sliding bearing can only bear force in a single direction, radial and thrust bearings need to be arranged at the same time, and light weight and integration of a device are not facilitated are solved. The bearing comprises a bearing body, the bearing body is installed in a bearing box, the bearing body is made of carbon structural steel, a radial positioning piece and an axial positioning piece are arranged between the bearing body and the bearing box, lubricating oil flows to the bearing body through a first channel and flows to a thrust pad through a second channel, and under the action of a rotating gear shaft, the bearing body is driven to rotate. According to the bearing, dynamic pressure liquid friction is established, the effects of radial supporting and axial positioning are achieved, the thrust pads on the two sides of the bearing body can bear axial stress in two directions, radial and thrust bearings do not need to be arranged at the same time, the axial size can be effectively reduced under the condition that the axial space of a gearbox is limited, and integration is better.

The invention provides a parallel hydraulic interconnection damping catamaran which comprises an upper cabin, a hydraulic interconnection suspension and a floating body which are sequentially arranged from top to bottom, and the whole structure is symmetrically distributed in the front view and is trapezoidal in the left view. The hydraulic interconnection suspension forms two side waists of a trapezoid, the upper cabin body is connected with the transverse rocker arm through the hydraulic cylinder set, the front transverse rocker arm is hinged to the longitudinal rocker arm through the radial spherical plain bearing, the longitudinal rocker arm is hinged to the floating body through the radial spherical plain bearing, and the rear transverse rocker arm is directly connected with the floating body. The front hydraulic cylinder set and the rear hydraulic cylinder set stretch out and draw back to achieve pitching motion, the left hydraulic cylinder set and the right hydraulic cylinder set stretch out and draw back alternately to drive the floating bodies on the two sides to move in a staggered mode, heeling of the ship body is achieved, and therefore three-freedom-degree vibration reduction compensation of heaving, pitching and heeling is jointly completed. Through the eight-cylinder interconnected hydraulic loop design and the special connection pair layout, wave multi-degree-of-freedom impact is effectively decoupled, the seakeeping and stability of the ship are remarkably improved, and the device is suitable for special rescue scenes such as shallow water areas and complex channels.

A plain bearing arrangement (14), in particular for an aircraft engine, including a first component (10) and a second component (12), the first component (10) being slidingly mounted on the second component (12), and the first and / or second component (10, 12) having at least one tribological coating (18), the coating (18) being a single-layer amorphous carbon coating having an sp2 content and an sp3 content, the sp3 content being between 50 at. % and 75 at. %, based on the total amount of substance of the coating (18). An aircraft engine having such a plain bearing arrangement (14) is also provided.

The invention discloses a multipurpose testing device and method suitable for medium and large-size centripetal spherical plain bearings. The device is mainly composed of a base, a test bearing device, an axial loading assembly and a radial loading assembly, wherein the test bearing device, the axial loading assembly and the radial loading assembly are installed on the base. Wherein the test bearing device integrates a test base, a transmission rotating shaft, a front-middle-rear three-section type supporting assembly, a to-be-tested bearing assembly, a torque sensor and a wear loss measuring assembly; the axial loading assembly and the radial loading assembly can operate independently and can also work cooperatively, and the combined load can be applied to the bearing accurately. The device has the basic advantages of being stable in structure and high in bearing capacity, can simulate complex combined load working conditions, achieves multi-parameter real-time monitoring, can be adapted to tests of medium and large radial spherical plain bearings of various specifications, and is of great significance in promoting research and development and performance verification of high-end spherical plain bearings.

A scroll compressor is provided. The scroll compressor can comprise a housing, a drive motor, a stationary scroll, a rotating scroll, a rotating shaft, and a plain bearing. An anti-tilt section can be formed on the inner circumferential surface of the plain bearing to prevent contact with the rotating shaft. Accordingly, the outer diameter of the rotating shaft is enlarged to match the outer diameter of the plain bearing, thus reducing the surface pressure between the rotating shaft and the stationary scroll while maintaining the compression length. Furthermore, tilting of the plain bearing along with the rotating shaft can be prevented, thereby reducing the frictional loss between the plain bearing and the stationary scroll.

The invention is suitable for the field of sliding bearing defect detection, and provides an automatic sliding bearing surface defect detection device and method.The automatic sliding bearing surface defect detection device comprises a detection table, a belt conveyor is arranged in the middle of the detection table, and two guide plates are arranged at one end of the detection table; the two guide plates are oppositely arranged on the two sides of the belt conveyor. The upper end face of the detection table is fixedly connected with a fixing frame, the fixing frame is connected with a guide mechanism and a dust removal mechanism, the guide mechanism can guide the sliding bearing, and the guide mechanism is connected with an impurity removal mechanism. A processing module in the regulation and control system can carry out data analysis according to the movement track and the movement speed of the sliding bearing before detection and the vibration condition of the external environment, and control information is generated; the control module can control and adjust the driving mechanism and the lighting assembly according to the control information.

The invention relates to a sliding bearing used in rotating machines such as pumps and turbines, in particular to a sliding bearing used in an ultra-low temperature environment. A sliding bearing is provided with: a sliding contact pad (1) having a shaft support surface (1a) for supporting the outer peripheral surface of a rotating shaft (100); a housing (2) disposed on the outside in the radial direction of the sliding contact pad (1); and a pad pressing mechanism (3) that presses the sliding contact pad (1) against the pad support surface (2a) of the housing (2) when the sliding contact pad (1) is contracted.

The application discloses a vibrating yarn spreading mechanism and belongs to the field of yarn production equipment, which is used to solve the problem of how to improve the stability of yarn spreading effect. The vibrating yarn spreading mechanism comprises a rack, at least two parallel vibrating rollers, and a driving mechanism. Each of the two ends of the vibrating roller is provided with a group of sliding shafts and sliding bearing seats, the sliding bearing seats are fixedly arranged on the rack, and the sliding shafts are slidably connected with the sliding bearing seats of the same group. The driving mechanism comprises a motor, at least two output wheels and a hinged shaft. The motor is fixedly arranged on the rack and is in transmission connection with each output wheel. Each output wheel is provided with an eccentric shaft. The end of the first shaft section of the hinged shaft is provided with an axially extending threaded hole, the second shaft section is provided with an external thread and is connected with the threaded hole. The first shaft section is hinged with the eccentric shaft of the same group of output wheels, and the second shaft section is hinged with the sliding shaft of the same group of vibrating rollers. The eccentric shafts of the adjacent two output wheels are 180 degrees out of phase, so that the moving directions of the adjacent two vibrating rollers are opposite when the motor works.

The application belongs to the technical field of equipment evaluation, and discloses a kind of calculation method and system of sliding bearing dynamic characteristic coefficient, comprising: taking half of real oil film model as research object at axial symmetry plane, and setting the side surface of film and oil inlet located at axial symmetry as symmetry plane, which can significantly save computing resources and speed up the calculation speed;And the film and the oil inlet are separately divided into grids, and the outer wall surface of the film and the bottom surface of the oil inlet are set as grid interfaces, which can realize automatic grid division while ensuring grid quality;The application applies displacement, speed small disturbance to the journal in the equilibrium position by UDF in Fluent software, realizes the calculation of sliding bearing dynamic characteristic coefficient, and effectively improves the calculation accuracy.

The utility model provides a sliding bearing babbitt metal casting tool, which belongs to the technical field of sliding bearing production equipment and comprises a supporting mechanism. Comprising a supporting frame, a casting ladle rotationally installed on the inner side of the supporting frame, a top frame fixedly installed on the top of the supporting frame, a driven gear fixedly connected with the casting ladle, and a driving gear installed on the surface of the supporting frame through a connecting rod bearing and engaged with the driven gear. And the angle positioning mechanism comprises a positioning component playing a damping role in rotation of the driven gear and a damping component used for adjusting the pouring angle of the casting ladle. According to the utility model, the driven gear is damped through the positioning part, and the driven gear is prevented from rotating too fast or suddenly, so that the stability of the casting ladle during pouring and casting is improved; the pouring angle of the casting ladle is positioned and adjusted through the damping component, the problem that fixed-angle pouring of a traditional casting ladle is difficult to achieve is solved, the effect of quantitative casting of alloy liquid is achieved, and then the casting efficiency of specific workpieces is improved.

The utility model relates to the technical field of knuckle bearings, and discloses a novel centripetal knuckle bearing which comprises an outer ring, an inner ring is arranged in the outer ring, the outer ring and the inner ring are mutually connected through interference fit, a spherical ring is arranged in the inner ring, and a plurality of groups of threaded holes are circumferentially formed in the left side wall and the right side wall of the outer ring. The installation ring and the extrusion ring are matched to form a detachable sealing structure, when the installation ring is abraded due to movement of the spherical ring, the damaged installation ring can be independently replaced only by disassembling the locking bolt, the maintenance cost is reduced, the annular oil storage cavity is formed in the joint portion of the installation ring and the inner ring through the two sets of arc-shaped angles, and the service life of the annular oil storage cavity is prolonged. And finally, the rotation of the mounting ring is stopped through the matching of the bulges and the grooves, so that the abrasion caused by the simultaneous rotation of the mounting ring and the spherical ring is further avoided, and the service life of the radial spherical plain bearing is effectively prolonged.

A sliding bearing taking-out device comprises a left pressing rod and a right pressing rod, the pressing rods are fixedly provided with the same nut, the nut is internally connected with a threaded rod in a threaded fit mode, a push block is rotationally installed on the threaded rod, the bottom of the push block is hemispherical, sliding sleeves are slidably installed on the pressing rods respectively, and arc-shaped vertical rods are fixedly installed on the sliding sleeves. Arc-shaped blocks are fixedly installed on the opposite sides of the arc-shaped vertical rods correspondingly, the push blocks can be in contact fit with the arc-shaped blocks, and threads capable of being in thread fit with the sliding bearings are arranged on the outer sides of the arc-shaped vertical rods correspondingly. The device is simple in structure and ingenious in conception, through outward movement of the arc-shaped vertical rod, the thread on the arc-shaped vertical rod can be matched with the thread on the sliding bearing, the arc-shaped vertical rod does not need to be screwed on the sliding bearing, influences caused by mutual rotation of an inner ring and an outer ring of the sliding bearing are avoided, actual requirements can be met, and the device is suitable for popularization.

The invention relates to a method for manufacturing a ring-shaped component (3, 3') in the form of a bearing ring for a rolling bearing (1) or a sliding bearing (10), comprising the following steps: - Providing a strip of sheet metal (BS) made of a metallic primary material, - Rolling the sheet metal strip (BS) by introducing a structure (4, 4') in the form of a raceway or a sliding track, - Bending the rolled sheet metal strip (BSw) into an open sheet metal ring (BSwg) with two mutually facing end faces (9, 9'), and - Material-bonded joining of the two end surfaces (9, 9') of the open sheet metal ring (BSwg) by means of a 3D printing process, wherein a powdered second material (80) is brought between the end surfaces (9, 9') and melted there and fused with the two end surfaces (9, 9') such that a connecting piece (8) formed from the powdered second material (80) connects the two end surfaces (9, 9') and the ring-shaped component (3, 3') is formed from the bent sheet metal strip (BSwg) and the connecting piece (8). The invention further relates to a ring-shaped component (3, 3') produced thereafter and a bearing with at least one such ring-shaped component (3, 3')

The application discloses a kind of rotor automatic hot sleeve equipment and method, including rotor conveying line, rotor feeding mechanism, rotor heating mechanism, rotor transfer mechanism, rotor press-fitting mechanism and machine core transfer mechanism;Rotor press-fitting mechanism includes rotor press-fitting index plate, machine core positioning tooling, gap adjusting tooling, gap return mechanism, balance block correction mechanism, gap retention mechanism, gap exclusion mechanism, shaft down-pressing mechanism and cooling device;Rotor press-fitting index plate is sequentially arranged with five index stations along the direction of rotation, respectively: machine core body feeding and discharging station, shaft press-fitting station, gap retention station, balance block correction and press-fitting station and cooling station;Each index station is provided with machine core positioning tooling and gap adjusting tooling.The application can realize the full-process automatic sleeve of rotor, and during hot sleeve process, it can keep the set axial gap between rotor bottom surface and machine core body and between shaft shoulder and plain bearing, improve the hot sleeve quality of entire compressor complete machine.

A bearing arrangement for a turbomachine is described. The bearing arrangement includes a shaft, a bearing housing configured for supporting the shaft, and a shaft seal provided in a wheel-side partition wall of the bearing housing. The partition wall separates a wheel back space of a rotating wheel of the turbomachine and a cavity in the bearing housing. The bearing arrangement further includes a plain bearing provided adjacent the cavity at an inner-side wall opposite the shaft seal. The plain bearing includes an oil collecting volume configured for collecting oil from a bearing surface of the plain bearing, and an oil drain channel arrangement in fluid communication with the oil collecting volume and configured for draining the oil away from an upper portion of the cavity.

The invention relates to a plain bearing (10) comprising at least one housing element (11), at least one bearing segment (12) and at least one vibration damper (13), wherein at least some sections of the bearing segment are connected to the vibration damper such that a vibration introduced into the bearing segment can be introduced into the vibration damper, and wherein at least some sections of the vibration damper are movably mounted on the housing element such that the bearing segment can be moved between an active position and a passive position (II) by an in particular linear movement of the vibration damper relative to the housing element, wherein a gap size of a lubrication gap between the bearing segment and a rotor element (15) supported in the plain bearing is smaller in the active position than in the passive position (II).

Disclosed is a spherical bearing (1) for supporting a shaft (16), in particular a shaft of a bypass flap of a conveyor belt system, for example a stone crusher, comprising an inner ring (2) configured to support the shaft (16) and having a radially outer surface (8) in a spherical shape, and an outer ring (4) configured to support the shaft (16). The outer ring (4) comprises a radially inner surface (12) receiving the spherical outer surface (8) of the inner ring (2), such that the inner ring (2) is slidably supported in the outer ring (4), and wherein a clamping sleeve (18) is arranged between the inner ring (2) and the shaft (16) to attach the spherical plain bearing (1) to the shaft (16).

The utility model provides a sliding mechanism for adjusting the particle size of a roller screen, which belongs to the field of screening devices and comprises two lower basic sliding rails, and two upper guide polish rods are fixedly connected in the two lower basic sliding rails; the adjusting assembly comprises a plurality of sliding bearing pedestals which are connected outside the two corresponding upper guiding polish rods in a penetrating and sliding mode, and the upper portions, close to the two sides, of every two adjacent sliding bearing pedestals are in threaded connection with the same positioning bolt. By means of the adjusting assembly, the roller screen can change the screening particle size in the production process, the flexibility of equipment is improved, meanwhile, the roller screen can adapt to production tasks with different particle size requirements, and the phenomenon that due to the fact that the screening particle size cannot be adjusted, when the material particle size needs to be changed in the production process, the material particle size is changed is avoided. The situation that the whole rolling shaft or the screening equipment needs to be replaced is avoided, the production cost is reduced, and production interruption is avoided.

The invention relates to a method for producing an annular component (3, 3') in the form of a bearing ring for a rolling bearing (1) or a plain bearing (10), comprising the following steps: - providing a sheet-metal strip (BS) made of a metallic first material, - rolling the sheet-metal strip (BS) such that a structure (4, 4') in the form of a raceway or a slideway is introduced, - bending the rolled sheet-metal strip (BSw) to form an open sheet-metal ring (BSwg) having two end faces (9, 9') directed towards one another, and - integrally connecting the two end faces (9, 9') of the open sheet-metal ring (BSwg) by means of a 3D printing method, wherein a pulverous second material (80) is introduced between the end faces (9, 9') and melted there and fused to the two end faces (9, 9') in such a way that a connecting piece (8) formed from the pulverous second material (80) connects the two end faces (9, 9') and the annular component (3, 3') is formed by the bent sheet-metal strip (BSwg) and the connecting piece (8). The invention also relates to an annular component (3, 3') produced by means of said method and to a bearing having at least one such annular component (3, 3').

To provide a sliding bearing that is less susceptible to damage caused by electrical discharge on the rotating shaft and sliding surface. [Solution] The sliding bearing 10 supports the rotating shaft of a vehicle drive motor. The sliding bearing 10 comprises a cylindrical metal base 20 and an insulating layer 30. The metal base 20 includes an inner circumferential surface 21, an outer circumferential surface 22, and two axial end faces 23. The insulating layer 30 covers the inner circumferential surface 21 and a portion of the two axial end faces 23 of the metal base 20. The metal base 20 consists of a backing metal layer 25 and a bearing alloy layer 26 joined to the backing metal layer 25 at a cylindrical radially inward position from the backing metal layer 25. The axial end face 23 consists of a first region 231 and a second region 232 located at a cylindrical radially outward position from the first region 231. The insulating layer 30 covers only the entirety of the first region 231 on the axial end face 23. In the radial direction of the cylindrical shape, the length L2 of the first region 231 is longer than the length T4 of the bearing alloy layer 26, and is 60% or less of the length T3 of the metal substrate 20.

The invention relates to a bearing receptacle (1) for a plain bearing (2) for a rotor shaft (3) of a wind turbine (4), having at least the following components: - a positioning device (5) for positioning a bearing element (6), wherein the bearing element (6) has a defined bearing axis (7); - a guide rail (8) for guiding the positioning device (5) along a positioning axis (9); and - a fixing device (10) for fixing the positioning device (5) in a position set during assembly. The bearing receptacle (1) is primarily characterised in that the positioning axis (9) is oriented at an angle to the bearing axis (7) of the bearing element (6) to be positioned. A setting of a bearing gap is permanently ensured by means of the bearing receptacle proposed here.

The utility model discloses a damping type radial spherical plain bearing node which comprises a support base plate, a first lug plate and a second lug plate are fixedly installed at the two ends of the support base plate respectively, and a pin shaft is installed between the first lug plate and the second lug plate. A viscous damping mechanism, a bearing mechanism, a third lug plate and a spring mechanism are sequentially and tightly arranged on the pin shaft in a sleeving manner; the viscous damping mechanism is arranged between the first lug plate and the third lug plate, the bearing mechanism is rotationally installed in a lug hole of the third lug plate, and the spring mechanism is arranged between the second lug plate and the third lug plate. The shock absorption type radial spherical plain bearing node has the advantages of universal rotation, clear stress, simplicity in manufacturing and mounting, small node size and the like while solving the problems of temperature stress and earthquake action, and solves the problems of large temperature stress, large earthquake response, large node size and the like of the existing super-long and large-span space steel structure; wide popularization and application prospects are realized.

The invention relates to a sliding bearing (10), comprising at least one housing part (11), at least one bearing pad (12) and at least one damper (13), the bearing pad being connected at least in some regions to the damper such that vibrations input into the bearing pad can be introduced into the damper, and wherein the housing part (11) and the bearing pad (12) are connected to the damper (13) in such a way that the vibrations input into the bearing pad (12) can be introduced into the damper (13). The damper is mounted on the housing part so as to be displaceable at least in some sections such that the bearing pad can be displaced between a working position, in which the bearing pad is displaceable relative to the housing part, and a non-working position (II), in which the bearing pad is displaceable relative to the housing part, by means of a movement, in particular a linear movement, of the damper relative to the housing part. The gap size of the lubrication gap between the bearing pad and the rotor part (15) supported in the plain bearing is smaller than the gap size in the non-working position (II).