126 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 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 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 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 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.

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.

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.

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.

The utility model discloses a kind of wear-resistant self-aligning roller bearings, it includes: outer ring, the side inner wall of the outer ring is rotatably connected with upper guard plate, the side inner wall of the upper guard plate is rotatably connected with inner ring, the lower surface of the upper guard plate is fixedly connected with upper limit rod, the lower end of the upper limit rod is fixedly connected with upper support plate, rotatably connected with upper roller between the upper limit rod, the side inner wall of the outer ring is rotatably connected with lower guard plate, the upper surface of the lower guard plate is fixedly connected with lower limit rod, rotatably connected with lower roller between the lower limit rod, the upper end of the lower limit rod is fixedly connected with lower support plate, the side inner wall of the outer ring is rotatably connected with bracket ring, the inside of the bracket ring is rotatably connected with support shaft, the side surface of the support shaft is rotatably connected with ball, by above device, it is beneficial to improve the wear resistance of bearing.

The invention discloses a transmission shaft mechanism high in bearing capacity and easy to assemble, a hot forging press and an assembling method.The machine body is provided with a left transmission shaft seat and a right transmission shaft seat, a transmission shaft is provided with a middle small gear located between the machine body, and the side, close to a flywheel, of the left transmission shaft seat is provided with a self-aligning roller bearing; a first NU type cylindrical roller bearing is arranged on the side, close to the middle small gear, in the right transmission shaft seat, a first NJ type cylindrical roller bearing is arranged on the side, close to the middle small gear, in the right transmission shaft seat, and a second NU type cylindrical roller bearing is arranged on the side, away from the middle small gear, in the right transmission shaft seat. The diameter of the first NJ type cylindrical roller bearing and the diameter of the second NU type cylindrical roller bearing are smaller than the diameter of the self-aligning roller bearing and the diameter of the first NU type cylindrical roller bearing, the outer diameter of the middle pinion is smaller than the outer diameter of the left transmission shaft seat, and the two ends of the transmission shaft are fixedly connected with a clutch and a brake respectively. The split type clutch brake is adopted, the heat dissipation effect is good, meanwhile, the bearing capacity can be effectively improved, and installation and maintenance are convenient.

The utility model relates to the technical field of soft soil foundation reinforcement treatment engineering, in particular to a vibrating vibroflot with a vertical impact function, which comprises a vibration exciter and a submersible motor. The vibration exciter comprises a vibration exciter shell, a transmission shaft arranged in the vibration exciter shell, an eccentric block arranged on one side of the transmission shaft and self-aligning roller bearings arranged at the two ends of the transmission shaft, the transmission shaft is connected with the submersible motor through a coupler, and a step-shaped positioning shaft shoulder is arranged on the inner side of the vibration exciter shell. The step-shaped positioning shaft shoulders are matched with outer rings of the self-aligning roller bearings at the two ends of the transmission shaft and are used for bearing axial vibration loads of the self-aligning roller bearings; the rear end of the vibroflot is connected with the vibratory hammer through the ball shock absorber, the ball shock absorber comprises a rigid spherical structure and a ball cup with a spherical groove, the spherical structure is connected with a shell of the vibroflot, and the ball cup is connected with the vibratory hammer through the guide rod. The utility model has the advantages that the vibration-resistant strength of the diving motor of the vibroflot and the bearing capacity of the bearing seat to the axial force in the vertical direction are enhanced.

A split type self-aligning roller bearing (100) comprises an outer ring (10), an inner ring (20) having the same axial (A) width as the outer ring (10), the inner ring (20) comprising a first inner ring (21) and a second inner ring (22) split along the circumferential direction (W), a cage (30) located between the inner ring (20) and the outer ring (10) along the radial direction (R), the cage (30) comprising a beam portion (33) and a clamping portion (34), the clamping portion (34) located on the outer side of the axial direction (A) of the beam portion (33) and extending towards the inner ring (20), rolling elements (40) located in the pockets (35) of the cage (30), and a locking ring (50) located on the outer side of the axial direction (A) of the rolling elements (40) and used to lock the first inner ring (21) and the second inner ring (22) in the circumferential direction (W), wherein the locking ring (50) is located on the inner side of the radial direction (R) of the clamping portion (34) of the cage (30) and overlaps the clamping portion (34) in the axial direction (A). By arranging the locking ring (50) and the cage (30) in the radial direction (R) in a stacked manner, the whole self-aligning roller bearing (100) can be replaced without changing other surrounding structures, and the original axial length and load capacity of the rolling elements (40) are ensured.

The invention discloses a design method for main parameters of a double-row self-aligning roller bearing of an asymmetric roller structure, belongs to the technical field of bearing design, and aims to solve the problem that in an existing design method for the double-row self-aligning roller bearing of the asymmetric roller structure, roller parameters and raceway parameters are not comprehensively designed. According to the method, the known basic size in the bearing design is utilized to calculate the main parameters of the roller diameter, the roller length, the minimum wall thickness of the bearing outer ring, the contact angle outer ring raceway diameter, the outer ring raceway radius and the inner ring raceway radius in the double-row self-aligning roller bearing; when the inner ring raceway radius is designed, the design thought of unequal curvature radiuses of the inner ring and the outer ring is innovatively adopted, the key matching coefficient of the adaptation is introduced, and accurate calculation of the inner ring raceway radius can be completed by combining the outer ring raceway radius with the adaptation parameter corresponding to the working condition. The method is mainly used for designing the main parameters of the double-row self-aligning roller bearing of the asymmetric roller structure.

This utility model discloses a pressure-balancing rolling mill roll, including a high-carbon balancing mandrel. Several self-aligning roller bearings are fixedly mounted on the high-carbon balancing mandrel. A high-carbon inner roller body is fixedly connected to the outer ring of each self-aligning roller bearing. A balancing roller body is mounted outside the high-carbon inner roller body. A transmission sprocket is fixedly connected to one side of the high-carbon inner roller body, and a transparent cover is fixedly connected to the side of the high-carbon inner roller body away from the transmission sprocket. Through the design and manufacturing of the high-carbon inner roller body and the balancing roller body, the roller body itself, through its scientific structure, infinitely conforms to the linear pressure of two sets of pressure rollers on the roller surface, automatically balancing the linear pressure acting on the fabric evenly. After adjustment, adjusting the rotary knob to the required process production speed can effectively improve production capacity, ensure continuous fabric production, and output the fabric in a flat state to the next process production unit, achieving efficient, uniform, energy-saving, and emission-reducing production.

The present application relates to the technical field of double-effect mixed flow, and particularly relates to a multi-phase double-effect mixed flow machine, which comprises a support, a driving motor, a synchronous gear box, a shaft coupling, a planetary reducer, a self-aligning roller bearing, a box body, a supporting bearing, a mixed flow assembly and an exchange assembly; the support is sequentially provided with the driving motor, the synchronous gear box, the planetary reducer, the self-aligning roller bearing, the box body and the supporting bearing; the output end of the driving motor is connected with the synchronous gear box; two shaft couplings are arranged on the side of the synchronous gear box away from the driving motor; the two shaft couplings are respectively connected with two planetary reducers; and the exchange assembly is arranged in the mixed flow assembly; the present application can change the cold and hot exchange speed of the material according to the mixing speed when the material is mixed, and can improve the containing capacity, shorten the mixing time and greatly improve the mixing efficiency of the material.

The utility model discloses a vertical parallel shaft speed reducer, which belongs to the field of speed reducers and comprises a box body, an input shaft and an output shaft are arranged on the box body in parallel, the input shaft and the output shaft are linked through a reduction gear set, the input shaft is linked with an input flange, and the box body is hinged with an output flange and a transparent cover. The output shaft is provided with a first self-aligning roller bearing and a second self-aligning roller bearing in a penetrating mode, a first oil seal is arranged at the joint of the output flange and the output shaft, a second oil seal is arranged at the joint of the transparent cover and the output shaft, a thrust ball bearing is further arranged at the end, close to the transparent cover, of the output shaft, and the output shaft is in threaded connection with a round nut used for fixing the thrust ball bearing. When the output bearing bears a large radial load, the first self-aligning roller bearing and the second self-aligning roller bearing are respectively arranged at the edges of the output shaft and the box body, so that the radial bearing capacity of the output shaft is obviously improved, and the thrust ball bearing is additionally arranged at one end, far away from the output flange, of the output shaft, so that the axial loading capacity of the output shaft can be improved.

A kind of cage structure for single-row self-aligning roller bearing, adopts split structure, and is fixed into integrated cage structure by connecting piece, cage is evenly provided with several pockets, the shape of the middle part of pocket is cylindrical, and the shape of both ends of pocket is arc structure same as the shape of the end of installed spherical roller.By optimizing the structure, the end of both sides of pocket is machined into arc structure same as the shape of roller, which can guide spherical roller well and straighten the skew of roller movement, to avoid the problem that two half cages cannot be completely aligned due to the machining position precision of pocket, the middle section of pocket is designed as cylindrical, and the clearance between roller and pocket is larger than that of both end arc pocket section.The middle section of pocket does not contact with roller when bearing rotates, and does not participate in the straightening of roller skew;the straightening force only comes from both end arc pocket end.When roller is not skewed and contacts with pocket wall, there is an acting force in each of both end arc pocket section, which is balanced on roller to improve the stability of operation of self-aligning roller bearing.

The utility model designs a bearing body structure for a large vertical pump, which comprises a pump body outer ring, a pump body inner ring, a pump cover, a pump cover flange, an upper bearing seat, a pump shaft, a bearing body and a bearing body lower flange, and is characterized in that the pump cover flange at the upper part of the pump cover is connected with the bearing body lower flange at the lower part of the bearing body, and a mechanical seal is arranged at the opening of the pump cover; a bearing cavity is formed in the middle of the bearing body, a self-aligning roller bearing is installed in the bearing cavity, an upper bearing seat is arranged on the upper portion of the bearing body, two angular contact ball bearings connected in series are arranged on the lower portion of the upper bearing seat, a deep groove ball bearing is arranged on the upper portion of the upper bearing seat, and a bearing cover is connected to the top of the upper bearing seat. The utility model has the advantages that the force is directly transferred to different parts of the pump body, and the vibration resistance is better. And meanwhile, the deep groove ball bearing, the angular contact ball bearing which is connected in series and the self-aligning roller bearing are optimally matched, so that the bearing burning phenomenon caused by machining concentricity deviation due to large bearing position span of the large vertical pump is better adapted.

In the present invention, a plurality of column portions on one side of an annular body in the axial direction and a plurality of column portions on the other side of the annular body in the axial direction are arranged such that the phases thereof in the circumferential direction are shifted from each other by a half pitch. The annular body has: an outer protruding section that protrudes further outward than the column portions in the radial direction and is guided into the inner circumferential surface of the outer ring; and a small distance portion that has a radial-direction distance that is smaller than the outer diameter of the outer protruding section in order to enable the cage to be inserted into the outer ring in the axial direction in a state in which the axes of the outer ring and the cage are orthogonal to each other.