211 results about "Spherical roller bearing" patented technology

Disclosed is a spherical roller bearing comprising: at least an outer ring and an inner ring; two groups of spherical rollers; and at least one cage configured to retain the spherical rollers, the cage comprising at least one axially inner cage ring, a first axially outer cage ring and a second axially outer cage ring extending in a circumferential direction of the spherical roller bearing, the first axial outer retainer ring and the second axial outer retainer ring are respectively separated from the axial inner retainer ring and are connected to the axial inner retainer ring through a plurality of retainer rods to form a closed cavity; each pocket is configured to receive one spherical roller and has an axially inner pocket side face and an axially outer pocket side face configured to restrain the spherical roller in the axial direction, each cage bar has a curved portion extending in the axial direction in the circumferential direction, the curved portion is at least partially concave, and in the axial direction, the curved portion is at least partially concave. The distance between the vertex of the bending part and the side face of the axial inner cavity lattice is different from the distance between the vertex of the bending part and the side face of the axial outer cavity lattice.

The invention discloses a spherical roller bearing entity simulation method, device and equipment and a medium, and relates to the technical field of wind power generation. According to the scheme, when the finite element mesh model of the spherical roller bearing is constructed, the rollers are connected to the bearing inner ring and the bearing outer ring through the spring units, that is, traditional finite element constraint is replaced with the mode that the rollers are constrained through the spring units, and the conventional constraint limitation in finite element simulation is broken through; accurate analysis of bearing roller contact in a complete machine model is realized; after a complete machine finite element mesh model is generated based on a model of the spherical roller bearing, simulation parameters and loading parameters of the complete machine finite element mesh model are set, the simulation parameters at least comprise a working clearance between a roller and a raceway, that is, contact offset is added to simulate the existence of the radial clearance of the bearing, and the loading parameters of the complete machine finite element mesh model are set. The problem of simulation of play contact of the SRB main bearing under the working condition of high axial force is solved, and three-dimensional balance of physical authenticity, calculation efficiency and engineering applicability is achieved.

The invention discloses an ultra-high-temperature heavy-load self-aligning roller bearing optimization design method and system based on a particle swarm algorithm, belongs to the field of rolling bearing optimization design, and solves the problems that a traditional bearing design process is low in efficiency, and multi-target collaborative optimization is difficult to achieve. And the design method combining the empirical formula and the finite element model is poor in precision due to the strong coupling characteristic of the material nonlinearity, the thermal coupling effect and the bearing performance under the ultra-high-temperature heavy-load working condition. The method comprises the following steps: S1, determining a bearing parameter, a working condition parameter and a particle swarm algorithm parameter; s2, establishing an optimization model of the ultrahigh-temperature heavy-load self-aligning roller bearing: S21, establishing a target function; s22, determining a design variable; s23, establishing a constraint equation; and S3, optimizing corresponding parameters of the bearing by adopting a particle swarm algorithm to obtain an optimization result. The method is suitable for a self-aligning roller bearing optimization design scene.

The invention relates to a high-temperature-resistant reusable self-aligning roller bearing, and belongs to the technical field of bearings. A roller is arranged between an inner ring and an outer ring, and the inner ring is made of Al0. 5CrCoFeW0. 5Ni high-entropy alloy; the oxidation resistance, the strength, the stability and the wear resistance during working are met; the outer side surface of the inner ring is subjected to ion implantation modification to form a modified layer of the inner ring; the TiAlN coating reduces energy loss, and the first Ag coating is used for conducting heat and reducing oxidation loss; the outer ring is made of an Al < 0.5 > CoCrFeV < 0.5 > Ni high-entropy alloy; the high bearing capacity, the wear resistance, the fatigue resistance, the dimensional stability and the corrosion resistance in the working process are met; the modified layer on the inner side surface of the outer ring is used for improving the surface hardness and enhancing the wear resistance; the CrAlN coating is used for improving oxidation resistance, and the second Ag coating is used for conducting heat and reducing oxidation loss; the roller is made of an AlCoCrFeNi2. 1Nb0. 6 high-entropy alloy; a lubricating structure on the surface of the roller comprises an annular groove and graphite fluoride; a lubricating film is formed when the raceway and the roller rub each other, and the integrity of the lubricating film is maintained.

The invention discloses a self-aligning roller bearing rotation flexibility test data and assembly parameter correlation analysis method and a self-aligning roller bearing rotation flexibility test data and assembly parameter correlation analysis system. According to the method, bearing assembly parameters and multi-dimensional time sequence data of a rotation test are acquired through a system, and a quantitative correlation model between the bearing assembly parameters and the multi-dimensional time sequence data is constructed by using a machine learning algorithm. On the basis of the model, reverse analysis can be carried out on abnormal test data, and an assembly deviation source which causes poor flexibility is accurately positioned; target parameters can be input in the process design stage, and the expected performance of the bearing can be predicted in the forward direction. The corresponding system integrates a data acquisition module, a model analysis module, an application output module and a process feedback control module, and is integrated with a production line control system. According to the method, traditional qualitative judgment depending on experience is converted into quantitative analysis driven by data and models, intelligent closed loop from quality detection and root diagnosis to process optimization is achieved, and the consistency of bearing assembly quality and the intelligent level of process control are remarkably improved.

The invention discloses a variable reluctance power generation system based on a wind power spherical roller bearing and a wind driven generator, the variable reluctance power generation system based on the wind power spherical roller bearing comprises a bearing and a power generation assembly, the bearing comprises an inner ring, an outer ring and a rolling body, the inner ring is arranged in the outer ring in a sleeved mode, and the inner ring can rotate relative to the outer ring in the radial direction of the outer ring; the rolling body is rotatably arranged between the inner ring and the outer ring, the power generation assembly comprises a mounting ring and a power generator, the mounting ring is detachably arranged on the outer ring and connected with the outer ring, the power generator is arranged on the outer ring, the power generator and the rolling body are oppositely arranged at intervals in the axial direction of the outer ring, and the power generator can generate a magnetic field and is matched with the rolling body so that when the rolling body rotates, the magnetic field can be generated; the rolling body drives the generator to generate a variable reluctance effect so as to generate an induction electric signal. The variable reluctance power generation system based on the wind power spherical roller bearing has the advantages of being simple in structure, accurate in detection result and the like.

The utility model discloses a split bearing for improving the axial loading capacity of a self-aligning roller bearing, and belongs to the technical field of bearings. A split bearing for improving the axial loading capacity of a self-aligning roller bearing comprises a bearing outer ring and a bearing inner ring, the bearing outer ring comprises a left half outer ring and a right half outer ring, the bearing inner ring comprises two half inner rings, the two connecting ends of the left half outer ring and the right half outer ring are connected through two first hexagon socket screws respectively, and the two connecting ends of the left half outer ring and the right half outer ring are connected through two second hexagon socket screws respectively. The butt joint surfaces of the two half-and-half inner rings are in threaded connection through two positive and negative double-end studs respectively; compared with a traditional split type bearing, the split type bearing has the advantages that the structure is simple, fastening can be completed only through screws and bolts, meanwhile, the split type bearing is more suitable for being used in a high-altitude tower seat cabin, a wind power main shaft set with limited space and other working conditions, and the split type bearing has the advantages of being easy to install and replace and low in manufacturing cost.

The invention provides a self-aligning roller bearing with a heat dissipation structure, and relates to the technical field of bearings, the self-aligning roller bearing comprises a bearing seat body and a bearing body; end covers are installed on the left side and the right side of the bearing seat body through bolts, heat dissipation holes are formed in the end covers in an annular array mode and are of a conical structure, and the diameter of the side, close to the bearing seat body, of each heat dissipation hole is larger than that of the side, away from the bearing seat body, of each heat dissipation hole. After the spiral oil storage cavity of the rolling body is filled with high-temperature lubricating grease, the lubricating grease can be automatically supplemented along with temperature, when the bearing operates and heats, the lubricating grease is heated to expand and seeps out through the micro oil outlet holes along a spiral path under the dual action of thermal expansion thrust and the rotating centrifugal force of the rolling body, the higher the temperature is, the more the lubricating grease flows out, and loss of a friction part is supplemented in time; and when the bearing stops rotating or is cooled, the lubricating grease shrinks, the outflow is reduced, and the residual oil returns to the cavity to be stored, so that the lubricating grease is released as required and the residual oil is recycled, the high-temperature lubricating effect is ensured, and excessive consumption of the lubricating grease is avoided.

The utility model discloses a subsection assembly type submersible permanent magnet synchronous motor which comprises motor sections and spline assemblies, the motor sections are connected through the spline assemblies, each motor section comprises a single-section shell and a motor shaft, the single-section shells are connected in a welding mode to form a motor shell, the two ends of each single-section shell are respectively provided with a supporting sleeve, and the motor shaft is connected with the supporting sleeves. The motor shaft penetrates into the single-section shell, the two ends of the motor shaft penetrate to the outer side of the supporting sleeve respectively, the two ends of the motor shaft are provided with shaft sleeves respectively, the shaft sleeves play a role in protecting the motor shaft, the spline assembly comprises a bearing seat, a spline sleeve and a self-aligning roller bearing, and the connecting ends of the motor shaft are inserted into the spline sleeve respectively. A cavity is reserved between the connecting ends of the motor shaft; the whole submersible permanent magnet synchronous motor adopts a segmented assembly structure, the length of a single motor shaft can be effectively reduced, submersible permanent magnet synchronous motors with different lengths can be assembled, the self-aligning performance is good, and the coaxiality error of the motor shafts can be compensated.

The invention discloses a large-lifting-capacity multi-claw lifting hook and an assembling method and a detecting method thereof, and belongs to the technical field of lifting hooks. The large-lifting-capacity multi-claw lifting hook comprises a lifting rod, and a thrust self-aligning roller bearing is installed on the lifting rod; the hook body comprises a hook body and a hook tip, and the hook body and the hook tip are welded; the thrust self-aligning roller bearing supports the hook body, the self-aligning roller bearing is installed on the hook body, the suspender penetrates through the self-aligning roller bearing and the center of the hook body, and the hook body rotates relative to the suspender. And the large lifting capacity is more than 3500t. According to the invention, the large-lifting-capacity multi-claw lifting hook can be assembled and detected.

The present application relates to the technical field of wind turbine bearing, in particular to a method and device for adjusting axial force balance of double-row self-aligning roller bearing, the device comprises an axial force applying assembly arranged outside the bearing seat, the axial force applying assembly is composed of a ring-shaped positioning element and a plurality of groups of elastic elements arranged uniformly along the circumference in the cavity of the positioning element, the inner ring of the positioning element extends radially inward and projects to cover the outer ring of the bearing, one end of the elastic element faces the inner part of the cavity, and the other end contacts the outer ring of the bearing through a pressure equalizing ring. The present application generates a reverse additional support force under the action of axial load, actively transfers part of the load from the stressed side bearing row to the non-stressed side, solves the problem that the roller contact stress of the stressed side of the existing double-row self-aligning roller bearing is too high under the single-sided axial load working condition, and early fatigue spalling is easily caused, realizes the balanced distribution of axial force, effectively reduces the peak contact stress, and significantly prolongs the service life of the bearing.

A self-aligning roller bearing (1) comprising an inner bearing ring element (2), an outer bearing ring element (3), and at least a series of roller elements (4) arranged between the inner and outer bearing ring elements (2, 3), wherein the inner bearing ring element (2) has a retaining flange (21) provided on a first axial side of the roller bearing (1), the retaining flange (21) being designed to prevent the roller elements (4) from falling out of the roller bearing (1) through a first axial opening (Ax) between the inner and outer bearing ring elements (2, 3) on the first axial side, the roller bearing (1) further comprising a first sealing ring element (5) arranged on the first axial side for sealing the first axial opening (Ax), the first sealing ring element (5) being rotatable with respect to the inner bearing ring element (2) and bearing against a sealing mating surface (23) of the inner bearing ring element. (2) seals,wherein the retaining flange (21) provides at least one filling recess (22) which is designed to allow the roller elements (4) to be inserted between the inner and outer bearing ring elements (2, 3) during the assembly of the roller bearing (1), and the sealing mating surface (23) is arranged axially outside the at least one filling recess (22).

The utility model discloses a steel wire rope lifting drum assembly for an electric hoist, which comprises a drum body, a rope guider is mounted in the middle of the drum body, and steel wire ropes are wound at two ends of the rope guider; the driving shaft ends are mounted at two ends of the winding drum body; the bearing seat is mounted at the end of the driving shaft through a self-aligning roller bearing, and a through cover fixedly covers the outer side of the bearing seat through a screw; the speed reducer is connected to the end of the driving shaft through a key; the lifting motor is mounted at the other end of the driving shaft end; wherein the winding drum body is provided with a steel wire rope baffle through a bolt, and the steel wire rope baffle is used for pressing the end of a steel wire rope on the outermost side; the end cover of the winding drum body is fixed at the end of the driving shaft through a V-shaped reinforcing seat, the V-shaped reinforcing seat is sleeved and welded at the end of the driving shaft and is provided with a V-shaped caulking groove, the bottom of the V-shaped caulking groove extends to form a rectangular groove, and the end cover of the winding drum body is embedded in the V-shaped caulking groove and is welded and fixed. The V-shaped reinforcing seat is connected with the driving shaft and the winding drum body, stability of the end of the winding drum body is enhanced, the steel wire rope baffle locks the bottom steel wire rope, safety can be guaranteed, and overall operation is convenient, fast and safe.

The invention relates to the technical field of bearing ring grinding machine tools, in particular to a single-fulcrum gyroscope type grinding machine tool which comprises a machine tool body. The lathe bed is provided with a box body, a grinding wheel feeding mechanism, a laser diameter measuring instrument transmitting end and a laser diameter measuring instrument receiving end; the box body comprises a machine tool spindle gyroscope body and a part installed in the box body, the upper portion of the gyroscope body is connected with an elastic body, a gyroscope tip of the gyroscope body is installed on a bottom plate of the box body through a self-aligning roller bearing, and the bottom plate of the box body is fixed to a machine tool body; components integrated on the gyroscope body comprise a motor rotor, an inner ring permanent magnet, an electromagnetic inner ring permanent magnet, a wave-shaped ring channel and a workpiece clamping base. Components installed in the box body comprise a motor stator, an outer ring permanent magnet, an outer ring electromagnet, an annular blast pipe and a circle of blast nozzles on the annular blast pipe. The motor stator drives the motor rotor to rotate at a high speed so as to drive the gyroscope body to rotate, the outer ring permanent magnet pushes the gyroscope body through magnetic force, the elastic body absorbs vibration generated in the grinding process and enables the axis of the gyroscope body to be located in the center all the time, and a workpiece ground by the grinding wheel is high in roundness and precision.

The utility model relates to a motor capable of improving axial support and a wet mill, which comprise a casing, a stator fixed on the casing, a rotor which is rotatably accommodated at the inner side of the stator and is provided with a rotating shaft, and a first end cover and a second end cover which are arranged at the two axial sides of the casing, and are respectively provided with a first cavity and a second cavity, the device is characterized in that a first self-aligning roller bearing for supporting the rotating shaft is arranged in the first cavity, and a thrust bearing for supporting the rotating shaft, a spacer bush and a second self-aligning roller bearing are sequentially arranged in the second cavity from bottom to top along the axis. According to the motor capable of improving the axial bearing, the supporting structures on the two axial sides of the motor are improved, so that the motor can conveniently transmit the borne axial load to the second end cover, meanwhile, the rotating shaft of the motor can be self-adaptively aligned through the self-aligning roller bearings on the two axial sides, the radial run-out of the rotating shaft during rotation is reduced, and the service life of the motor is prolonged. And the axial load capacity of the motor is improved while the smooth rotation of the motor is ensured.

The utility model relates to transmission equipment technical field especially relates to a multistage transmission gear box convenient to maintain. Including gear box and gear box cover, be equipped with input shaft, intermediate shaft and output shaft in gear box, be equipped with input gear on input shaft, be equipped with first intermediate gear and second intermediate gear on intermediate shaft, be equipped with output gear on output shaft, input gear and first intermediate gear mesh, output gear and second intermediate gear mesh, constitute multistage transmission, be equipped with observation window for observing internal operation state, oil inlet for adding lubricating oil and oil level for monitoring oil level on gear box, and observation window, oil inlet and oil level are sealed respectively through detachable window cover plate, oil inlet cover plate and oil level cover plate, each shaft is supported on gear box through self -aligning roller bearing, and is limited in the axial position through axial baffle. The utility model solves the problem of the existing gear box inconvenient maintenance, poor sealing performance etc.

The application provides a kind of friction torque measuring tool of centripetal roller bearing under eccentric load state, including motor, sensor and test shaft, the test shaft is arranged on the inner ring of the bearing to be measured, the spline part is provided at one end of test shaft, the motor and sensor are sequentially connected at spline part, it further includes mounting seat and limiting seat, the mounting seat is formed by assembling, and mounting seat can be loaded in the outer ring of the bearing to be measured, the other end of test shaft is rotatably provided with extension, the end of extension is used to connect the load of loading piece, and extension is slidably connected on limiting seat, and limiting seat forms anti-rotation cooperation with limiting seat. In view of the deficiency of prior art, the application provides a kind of friction torque measuring tool of centripetal roller bearing under eccentric load state, which is simple to operate and stable in measurement.

The utility model discloses a storage device for production of self-aligning roller bearings, which belongs to the technical field of storage devices and comprises a bottom plate, rolling wheels are fixedly connected to four corners of the bottom of the outer surface of the bottom plate, an auxiliary fixing structure is arranged on one side of the bottom plate, and a detachable storage structure is arranged at the top of the bottom plate. The auxiliary fixing structure comprises a connecting block, one side of the outer surface of the connecting block is fixedly connected with one side of the outer surface of the bottom plate, according to the storage device for self-aligning roller bearing production, by arranging the auxiliary fixing structure, under the action of a threaded rod, a screw hole block and a rectangular connecting plate can be driven to move, and then an annular pressing plate can be driven to move; the annular pressing plate can penetrate through the limiting insertion rods, then the bearings arranged on the limiting insertion rods in a sleeving mode are subjected to auxiliary limiting, when the number of the bearings on the three limiting insertion rods is different, the threaded auxiliary rod is rotated at the moment, then the annular pressing plate can be driven to move, and then the bearings can be fixed in a matched mode.

This invention relates to the field of bearing cage dressing technology, and discloses a self-aligning roller bearing cage dressing fixture, including a dust collection bin. A support ring is supported at the top of the dust collection bin, and a support mechanism is supported on the inner side of the support ring. The support mechanism includes a support disc fastened to the inner side of the support ring. Several sets of clamping mechanisms are evenly arranged on the top of the support disc, and each clamping mechanism includes an elastic clamping plate. This self-aligning roller bearing cage dressing fixture supports the cage body through the support ring, and then uses two sets of grinding components symmetrically arranged diagonally to dress and grind the openings at both ends of the cage body. Furthermore, the inverted design of the two grinding heads allows for adaptation to the openings at both ends of the cage body, enabling simultaneous dressing and grinding of the openings at both ends of the cage body, thereby improving work efficiency and avoiding the need for subsequent flipping.

A spherical roller bearing having at least an outer ring, an inner ring, and two sets of spherical rollers rolling along raceways formed on the outer ring and the inner ring, each set of spherical rollers being housed in a bearing cage, each bearing cage comprising at least: a first cage ring, a second cage ring, and a plurality of cage bars extending in a circumferential direction of the bearing, each cage bar extends substantially in the axial direction of the bearing from the first cage ring to the second cage ring such that closed pockets are formed, each pocket being configured to receive a spherical roller, each cage bar separates two adjacent cavities and has a circumferential side surface facing the first cavity and a second circumferential side surface facing the second cavity, each circumferential side surface of the bearing cage bar is provided with a first contact area and a second contact area in the axial direction, and the first contact area and the second contact area are configured to at least partially contact the spherical roller. At least one of the first contact region and the second contact region has a convex bend in the radial direction.

The utility model belongs to the technical field of bearing ring detection, and particularly relates to a self-aligning roller bearing outer ring automatic detection device, which comprises a detection device body, the detection device body comprises a support frame, a working platform is arranged above the support frame, one side of the working platform is provided with a workpiece stepping feeding tool, and the other side of the working platform is provided with a workpiece clamping device. An outer diameter detection device is arranged above the other side of the working platform, a height detection device is arranged on one side of the outer diameter detection device, a workpiece leading-out mechanism is arranged at the end of the working platform and comprises a lifting platform capable of being vertically adjusted in a lifting mode, a pushing mechanism is arranged on one side of the lifting platform, and a feeding mechanism is arranged on the other side of the lifting platform. A guide-out table is arranged on the side, opposite to the pushing mechanism, of the lifting platform. The device is reasonable in design, simple in structure and convenient to machine, the conveying, detecting and outputting functions are integrated, it is ensured that workpieces can be detected in sequence, the working progress is improved, the using functionality of the device is guaranteed, and the using requirement is met.

To provide a cage for a self-aligning roller bearing having high rigidity and capable of achieving excellent handleability and assemblability of the bearing.SOLUTION: In a cage (4) for a self-aligning rolling bearing in which a plurality of pockets (8) for accommodating a plurality of rollers (3) are provided in a state of being arranged in a circumferential direction via pillar portions (7), a fall prevention portion (9) for preventing the rollers (3) from falling from the pockets (8) to an outer diameter side is provided between an outer diameter side end 7a and an inner diameter side end 7b of the pillar portion (7) (excluding the outer diameter side end 7a and the inner diameter side end 7b of the pillar portion (7)). Accordingly, even when the outer diameter of the cage 4 is large, the roller falling amount H can be suppressed without increasing the radial width T of the fall preventing portion 9. As a result, it is possible to provide the cage 4 having high rigidity and capable of realizing excellent handleability and assemblability of the bearing.SELECTED DRAWING: Figure 4

The utility model relates to bearing outer sleeve spare technical field, concretely relates to a high -speed axle bearing outer sleeve spare mounting device, including travelling crane, lifting ring screw and mounting bracket, the mounting bracket includes base, the vertical support column is installed on the base, the support column is connected with the lower surface of support ring, and the axis line of support ring is vertical setting, the lifting ring of lifting ring screw is used for connecting with travelling crane, and the threaded rod of lifting ring screw is used for connecting with the thread lifting hole on high -speed axle end face. The utility model supports bearing outer sleeve spare through the support ring of mounting bracket, avoids bearing outer sleeve spare rotation, can realize the vertical installation of the self -aligning roller bearing and bearing outer sleeve spare, shortens the time of travelling crane occupation, need not use the copper hammer or copper bar to knock the installation, reduces the dependence on the experience of worker, reduces the strain of self -aligning roller bearing, guarantees the coaxality of self -aligning roller bearing and bearing outer sleeve spare more easily, the inner wall of bearing outer sleeve spare will also automatically limit the skew of self -aligning roller bearing, further reduces the risk of strain.

The utility model discloses a heavy load bearing thin oil lubrication circulation structure for vertical pump, including bearing box, the oil storage room has in bearing box, install upper bearing body on bearing box, be provided with transmission sleeve in bearing box and upper bearing body, install deep groove ball bearing between transmission sleeve and upper bearing body, install upper bearing gland on upper bearing body, install spherical roller bearing between transmission sleeve and bearing box, install the shaft in transmission sleeve, install the oil separation sleeve between the shaft and bearing box, the oil separation sleeve has riser portion, set up lower thread structure and upper thread structure on transmission sleeve inner side wall, set up oil injection hole on transmission sleeve, set up pump oil chamber on transmission sleeve inner side wall, and pump oil chamber is located between lower thread structure and upper thread structure. The utility model adopts screw pump power, provides continuous stable thin oil lubrication for bearing, reduces bearing heat output, prolongs bearing service life, cancels radial oil hole, and the size specification of bearing is reduced.

The invention provides a novel single-row self-aligning roller bearing. The self-aligning roller bearing comprises an inner ring, an outer ring, a retainer and a plurality of drum-shaped rollers, wherein the retainer and the drum-shaped rollers are arranged between the inner ring and the outer ring, and the retainer is an inner ring guide type retainer or an outer ring guide type retainer or a composite guide retainer for simultaneously guiding the inner ring and the outer ring; the inner ring surfaces of the two side rings of the inner ring guide retainer are cylindrical surfaces, protrude towards the axial lead direction of the side rings, and form inner guide surfaces matched with the inner ring flanges; the outer ring surfaces of two side rings of the outer ring guide retainer are spherical surfaces, the spherical surfaces of the two side rings are located on the same spherical surface, the sphere center of the spherical surfaces of the two side rings is the same as the sphere center of the outer ring raceway, and the spherical surfaces of the two side rings form an outer guide surface matched with the outer ring raceway. According to the invention, the limit rotating speed and the impact load resistance of the bearing are greatly improved, the service life of the bearing is prolonged, and the application scene of the bearing is greatly expanded.

This invention discloses a multi-chain hoisting device and method for confined spaces, belonging to the field of hoisting technology. It addresses the problem that traditional hoisting tools are insufficient for hoisting requirements in confined spaces. The method includes: S1: Fixing a crossbeam and suspending the upper ends of multiple chain hoists from the crossbeam, with the lower ends connected to a hoisting platform; S2: Installing a thrust self-aligning roller bearing at the center of the hoisting platform, with a lifting rod passing through the inner ring of the thrust self-aligning roller bearing. A nut is threaded onto the upper part of the lifting rod, and a balance beam is connected to the lower end of the lifting rod; S3: Connecting the equipment to be hoisted to the lifting lugs at both ends of the balance beam, simultaneously lifting the multiple chain hoists to raise the hoisting platform, balance beam, and equipment to be hoisted until the equipment reaches a predetermined height; S4: Applying a horizontal torque to the lifting rod or the equipment to be hoisted, causing the balance beam, along with the equipment to be hoisted, to rotate around the rotation axis of the thrust self-aligning roller bearing to a predetermined angle. This invention balances hoisting stability, operational flexibility, and operational safety within confined spaces.

The invention discloses a heat treatment process method for a self-aligning roller bearing ring, and belongs to the field of heat treatment processing of self-aligning roller bearing parts. And 2, quenching and heating the ferrule on a roller hearth furnace salt bath martensite quenching production line with a protective atmosphere, and inspecting after salt bath cooling, air cooling, cleaning and rust prevention and salt bath tempering treatment. In the effective wall thickness range of 18-25 mm, the GCr15SiMn high-carbon chromium bearing steel with better hardenability is selected to replace GCr15; and when the sleeve ring is placed, the soft point defect of the contact part of the sleeve ring in the quenching process can be prevented, and the processing yield is improved. Contact type salt bath tempering is adopted, so that the structure is sufficiently transformed, and tempering is sufficient; and the tempering temperature of 200-250 DEG C is adopted, it is guaranteed that the impact toughness of the ferrule is improved by 10%-15% compared with an original technological method, the content of retained austenite in the ferrule after heat treatment is reduced to be within 5%, and it is guaranteed that the dimensional stability of the ferrule is high during subsequent machining and later use.

A spherical roller bearing for a wind turbine main shaft includes an outer ring, an inner ring having a bore with a diameter of at least 499 mm, two sets of spherical rollers which roll on raceways of the rings, and at least one roller cage. Each cage includes an axial inner cage ring extending in a circumferential direction of the bearing, a first axial outer cage ring spaced from the axial inner cage ring on a first axial side and connected by cage bars to form pockets receiving the first set of rollers, and a second axial outer cage ring spaced from the axial inner cage ring on a second axial side and connected by cage bars to form pockets receiving the second set of rollers. The cage bars are at least partially arranged at a position in a radial direction that is offset to a pitch diameter.

This invention provides a method and apparatus for detecting the inner ring raceway of a self-aligning roller bearing. The method includes: S1, fixing the self-aligning roller bearing on the worktable of a coordinate measuring machine; S2, using the coordinate measuring machine to measure four arc lines and eight straight lines of the four circular arc raceways of the self-aligning roller bearing on the maximum diameter section; S3, obtaining the raceway radius of curvature, raceway width, raceway eccentricity distance, position between two raceways, and raceway diameter of each arc raceway based on the four arc lines and eight straight lines, thereby realizing the detection of the inner ring raceway of the self-aligning roller bearing. This method uses general-purpose equipment to achieve precise detection of the dimensions and position of the bearing's inner ring raceway, eliminating the need for specialized measuring equipment. While providing convenient and quick detection, it effectively solves the problems of inaccurate measurement of the eccentricity of the inner ring raceway and the position between two rows of raceways in self-aligning roller bearings.

The utility model relates to cast steel bearing seat technical field especially is a universal adjusting type cast steel axle seat, including bearing base, the self -aligning roller bearing, bearing top cover, oil injection subassembly and sealing assembly, be provided with the self -aligning roller bearing between bearing base, bearing top cover, be provided with oil injection subassembly between the self -aligning roller bearing, bearing top cover, bearing base and bearing top cover front end, rear end symmetrical distribution are provided with two groups of sealing assembly, in the utility model, through the bearing base, the self -aligning roller bearing, bearing top cover, oil injection subassembly and sealing assembly of above -mentioned setting, the inside of lower connecting plate, the inside of upper connecting plate are through combination stud and are threadedly assembled combination, the outside of connecting cylinder and the inside of upper cavity shell are threadedly assembled, the inside of gland, the inside of lower cavity shell, the inside of upper cavity shell are through locking stud and are threadedly assembled, the modularization setting of device main part adopts easy to dismouting combination, has the oil injection channel and lubrication space of combination type.