CN217926771U

CN217926771U - Self-aligning roller bearing for vibrating machinery

Info

Publication number: CN217926771U
Application number: CN202222407712.8U
Authority: CN
Inventors: 孙晓军
Original assignee: Wuxi Yanpu Bearing Manufacturing Co ltd
Current assignee: Wuxi Yanpu Bearing Manufacturing Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-11-29
Anticipated expiration: 2032-09-09

Abstract

The utility model relates to a self-aligning roller bearing for vibrating machinery, it includes outer ring, inner ring, holder and roller, outer ring and the coaxial setting of inner ring, the holder is connected on the outer rampart of inner ring, it has a plurality of pockets hole, and is a plurality of to open on the holder the pocket hole sets into two rows, every row the pocket hole all sets up two rows of pockets hole relatively round the centre of a circle equipartition of holder, the roller all rotates in every pocket hole and connects one, on the inner rampart of roller conflict outer ring, two rows the relative both ends wall of roller has all opened the sliding hole, the sliding hole is located the axis position department of roller, sliding hole sliding fit has the gag lever post, be provided with ejecting spring between the diapire of gag lever post and sliding hole, the position department that the holder corresponds the sliding hole opens there is the spacing hole, works as when the roller is located the pocket hole, the gag lever post is located sliding hole and spacing hole simultaneously. The utility model discloses the effect that improves aligning roller bearing shock resistance has.

Description

Self-aligning roller bearing for vibrating machinery

Technical Field

The utility model belongs to the technical field of self-aligning roller bearing's technique and specifically relates to a self-aligning roller bearing for vibrating machinery is related to.

Background

The self-aligning roller bearing has two rows of rollers, the outer ring has a common spherical raceway, and the inner ring has two raceways and inclines at an angle relative to the bearing axis. The ingenious structure enables the bearing box to have self-aligning performance, so that the bearing box is not easily affected by the angle between the shaft and the bearing box seat to the error or the bending of the shaft, and is suitable for occasions with the angle error caused by installation error or shaft deflection. The bearing can bear radial load and axial load with bidirectional action.

People often use the MA type self-aligning roller bearing in vibration machinery (such as a vibrating screen, a vibrating feeder, a vibrating conveyor and the like), because the MA type self-aligning roller bearing leads rollers to rotate by an outer ring, a gap exists between a retainer and an inner ring, and the retainer does not completely wrap the rollers, the MA type self-aligning roller bearing is easier to vibrate, and therefore the MA type self-aligning roller bearing can be more suitable for vibration occasions.

In view of the above-mentioned related technologies, the inventor believes that, as the self-aligning roller bearing is used in a vibration machine for a period of time, the self-aligning roller bearing is always in a vibration impact load, so that the rollers cannot rotate in a balanced state, and the rollers deflect and displace, so that a gap exists between the rollers and the cage pockets, and the shock resistance of the self-aligning roller bearing is reduced.

SUMMERY OF THE UTILITY MODEL

In order to improve the shock resistance of a self-aligning roller bearing, the present application provides a self-aligning roller bearing for a vibration machine.

The application provides a self-aligning roller bearing for vibrating machinery adopts following technical scheme:

a self-aligning roller bearing for vibration machinery comprises an outer ring, an inner ring, a retainer and rollers, wherein the outer ring and the inner ring are coaxially arranged, the retainer is connected to the outer ring wall of the inner ring, a plurality of pocket holes are formed in the retainer, the pocket holes are arranged in two rows, each row of pocket holes are uniformly distributed around the center of the retainer, the two rows of pocket holes are oppositely arranged, one roller is rotatably connected in each pocket hole and abuts against the inner ring wall of the outer ring, sliding holes are formed in the two opposite end walls of the two rows of rollers, the sliding holes are located at the axial positions of the rollers and are in sliding fit with a limiting rod, an ejection spring is arranged between the limiting rod and the bottom wall of the sliding hole, a limiting hole is formed in the position of the retainer corresponding to the sliding hole, and when the rollers are located in the pocket holes, the limiting rod is located in the sliding holes and the limiting hole.

Through adopting above-mentioned technical scheme, when the roller installation advances the pocket downthehole, the gag lever post receives ejecting spring effort ejecting, and it is downthehole until the gag lever post gets into spacing, has realized the effect of restriction roller at the pocket downthehole internal rotation. The staff passes through gag lever post restriction roller and rotates in situ in the pocket, makes the roller be in same position all the time when rotating the pressurized, has reduced the possibility of roller displacement, deflection to this, has improved self-aligning roller bearing's shock resistance.

Optionally, pocket hole axial direction's opening part is connected with the shutoff board, the shutoff board laminating the tip of roller.

By adopting the technical scheme, the blocking plate is used for wrapping the rollers, the area of the retainer wrapping the rollers is increased, the possibility of roller displacement is reduced, and the shock resistance of the self-aligning roller bearing is improved.

Optionally, a placing groove is formed in the blocking plate, an elastic metal sheet is installed in the placing groove, the elastic metal sheet is arranged in a hollow round table shape, the axial direction of the elastic metal sheet and the axial direction of the roller are located on the same straight line, the smaller end of the elastic metal sheet is close to the roller, the roller is far away from one end of the sliding hole, a limiting groove matched with the appearance of the elastic metal sheet is formed in the end of the sliding hole, and a part of the elastic metal sheet is located in the limiting groove.

Through adopting above-mentioned technical scheme, utilize the elasticity of elasticity sheetmetal, through the cooperation of elasticity sheetmetal and spacing groove, make the roller further restricted in the pocket hole, further reduced the possibility of roller at the pressurized in-process displacement, improved self-aligning roller bearing's shock resistance.

Optionally, a plurality of first oil through holes are formed in the outer ring, the first oil through holes are uniformly distributed around the circle center of the outer ring, an oil groove is formed in the position, corresponding to the first oil through hole, of the retainer, and the oil groove is communicated with each pocket.

Through adopting above-mentioned technical scheme, the staff makes lubricating oil fall on the oil groove through filling lubricating oil for first oil through hole, and lubricating oil flows to every pocket downtheholely through the oil groove, has realized lubricated roller's effect, has improved self-aligning roller bearing's life.

Optionally, the oil groove is provided with a plurality of oil passages, and the oil passages are communicated with the limiting holes.

Through adopting above-mentioned technical scheme, lubricating oil in the oil groove flows into spacing downthehole through oil pipe way, makes the gag lever post obtain lubricated, makes the gag lever post restrict the roller better and rotates, reduces the possibility of gag lever post card dead roller.

Optionally, a second oil through hole is formed in the bottom wall of the sliding hole, and the second oil through hole is communicated with the limiting groove.

By adopting the technical scheme, when the self-aligning roller bearing works, the roller rotates and rubs with the elastic metal sheet, the temperature of the elastic metal sheet is raised by friction, the elasticity of the elastic metal sheet can be reduced, and the possibility of roller displacement is improved. The lubricating oil entering the limiting hole enters the sliding hole along with the sliding hole and enters the limiting groove through the second oil through hole, so that the elastic metal sheet is lubricated, the friction force between the elastic metal sheet and the roller is reduced, the lubricating oil also has the effect of cooling the elastic metal sheet, the elasticity of the elastic metal sheet is better maintained, and the service life of the elastic metal sheet is prolonged.

Optionally, a rounded corner is arranged at the end part of the limiting rod close to the limiting hole.

By adopting the technical scheme, the round angle is arranged at one end, close to the limiting hole, of the limiting rod, so that the limiting rod can better enter the limiting hole, and the mounting efficiency of the limiting rod is improved.

Optionally, two ends of the outer ring wall of the inner ring, which are close to the inner ring, are respectively connected with a baffle ring, and a gap is reserved between the baffle ring and the inner ring wall of the outer ring.

Through adopting above-mentioned technical scheme, keep off the ring and be used for blockking off impurity, reduced the possibility that impurity got into in the self-aligning roller bearing, improved self-aligning roller bearing's life.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the roller is installed in the pocket hole, the limiting rod is ejected out by the acting force of the ejection spring until the limiting rod enters the limiting hole, and the effect of limiting the roller to rotate in the pocket hole is achieved. Workers limit the rollers to rotate in situ in the pockets through the limiting rods, so that the rollers are always located at the same position when rotating and being pressed, the possibility of displacement and deflection of the rollers is reduced, and the shock resistance of the self-aligning roller bearing is improved;

2. by utilizing the elasticity of the elastic metal sheet and the matching of the elastic metal sheet and the limiting groove, the roller is further limited in the pocket, the possibility of displacement of the roller in the compression process is further reduced, and the shock resistance of the self-aligning roller bearing is improved.

Drawings

Fig. 1 is a schematic view of an overall structure of a self-aligning roller bearing for a vibration machine according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a roller, a cage, and an inner race ring in an embodiment of the present application.

Fig. 3 is a plan view of the self-aligning roller bearing in the embodiment of the present application.

Fig. 4 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 3.

Fig. 5 is a schematic structural diagram of an elastic metal sheet in an embodiment of the present application.

Description of the reference numerals: 1. an outer ring; 11. a first oil passage hole; 2. an inner ring; 3. a cage; 31. a pocket hole; 32. a limiting hole; 33. an oil sump; 34. an oil duct; 35. a plugging plate; 351. a placement groove; 4. a roller; 41. a slide hole; 411. a second oil through hole; 42. a limiting rod; 43. ejecting a spring; 44. a limiting groove; 5. an elastic metal sheet; 6. and (4) a baffle ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses self-aligning roller bearing for vibration machinery. Referring to fig. 1 and 2, a self-aligning roller bearing for a vibration machine includes an outer ring 1, an inner ring 2, a cage 3, and rollers 4. The outer ring 1 and the inner ring 2 are coaxially arranged, and the retainer 3 is fixedly connected to the outer ring wall of the inner ring 2. The retainer 3 is provided with a plurality of pockets 31, the pockets 31 are arranged in two rows, the two rows of pockets 31 are arranged oppositely, the rollers 4 are rotatably connected in each pocket 31, and the arc surfaces of the rollers 4 are abutted against the inner ring wall of the outer ring 1.

Referring to fig. 2, 3 and 4, two opposite end walls of the two rows of rollers 4 are respectively provided with a sliding hole 41, the sliding holes 41 are located at the axial positions of the rollers 4, a limiting rod 42 is in sliding fit in the sliding holes 41, an ejection spring 43 is placed in the sliding holes 41, the ejection spring 43 is located between the limiting rod 42 and the bottom of the sliding hole 41, and a limiting hole 32 is formed at the position of the retainer 3 corresponding to the sliding hole 41.

When the roller 4 is installed in the pocket 31, the stopper rod 42 is ejected by the urging force of the ejection spring 43 until the stopper rod 42 enters the stopper hole 32, thereby achieving the effect of restricting the roller 4 from rotating in the pocket 31. The staff restricts the roller 4 to rotate in situ in the pocket 31 through the limiting rod 42, so that the roller 4 is always in the same position when rotating and being pressed, the possibility of displacement and deflection of the roller 4 is reduced, and the shock resistance of the self-aligning roller 4 bearing is improved.

Referring to fig. 4, in order to make it easier for the stopper rod 42 to enter the stopper hole 32, the end of the stopper rod 42 near the stopper hole 32 is provided with a rounded corner.

Referring to fig. 2 and 4, in order to better lubricate the rollers 4, the outer ring 1 is provided with a plurality of first oil through holes 11, the retainer 3 is provided with an oil groove 33 at a position corresponding to the first through hole, and the oil groove 33 communicates with each pocket 31. The oil groove 33 is provided with an oil passage 34 corresponding to each position of the limiting hole 32, the oil passage 34 is communicated with the limiting hole 32, and the oil passage 34 is used for guiding lubricating oil to flow into the limiting hole 32, so that the limiting rod 42 is lubricated, the limiting rod 42 can better limit the rotation of the roller 4, and the possibility that the roller 4 is blocked by the limiting rod 42 is reduced.

Referring to fig. 2, 4 and 5, a blocking plate 35 is fixedly connected to an opening of the pocket 31 in the axial direction, the blocking plate 35 is attached to the roller 4, and the blocking plate 35 is used for increasing the area of wrapping the roller 4 and reducing the possibility of deflection of the roller 4. The position of the plugging plate 35 corresponding to the sliding hole 41 is provided with a placing groove 351, an elastic metal sheet 5 is placed in the placing groove 351, the elastic metal sheet 5 can be made of beryllium copper alloy, the elastic metal sheet 5 is arranged in a hollow round table shape, and the smaller end of the elastic metal sheet 5 is close to the roller 4. One end of the roller 4 close to the elastic metal sheet 5 is provided with a limit groove 44 matched with the shape of the elastic metal sheet 5, a part of the elastic metal sheet 5 is positioned in the limit groove 44, and the axial direction of the elastic metal sheet 5 and the axial direction of the roller 4 are positioned on the same straight line. The matching of the elastic metal sheet 5 and the limiting groove 44 further enables the roller 4 to be limited in the pocket 31 to rotate in situ, reduces the possibility of deflection and displacement of the roller 4, and improves the shock resistance of the self-aligning roller 4 bearing.

Referring to fig. 4, in order to increase the life of the elastic metal sheet 5, a second oil passage hole 411 is opened in the slide hole 41, and the second oil passage hole 411 communicates with the stopper groove 44.

Referring to fig. 4, in order to reduce the possibility of impurities entering the self-aligning roller bearing, baffle rings 6 are fixedly connected to the outer end wall of the inner ring 2 at positions close to the two ends of the inner ring 2, respectively, and a gap is left between the baffle rings 6 and the inner ring wall of the outer ring 1.

The implementation principle of the self-aligning roller bearing for the vibrating machinery in the embodiment of the application is as follows: when the self-aligning roller 4 bearing needs to be installed, a worker firstly fixedly connects the retainer 3 to the outer ring wall of the inner ring 2, then installs the elastic metal sheet 5 in the placing groove 351, then utilizes the punching equipment to punch the roller 4 into the pocket hole 31, the elastic metal sheet 5 is deformed after being abutted against the roller 4, the elastic metal sheet 5 resets and enters the limiting groove 44 until the roller 4 is punched in place, meanwhile, the limiting rod 42 is pushed out of the sliding hole 41 by the action force of the ejection spring 43 until entering the limiting hole 32, then fixedly connects the baffle ring 6 to the outer ring wall of the inner ring 2, and finally, the inner ring 2 is punched into the outer ring 1 by the punching equipment, so that the self-aligning roller bearing is installed.

The staff makes the roller 4 always in the same position when rotating and being pressed through the restriction of the limit rod 42 and the cooperation of the elastic metal sheet 5 and the limit groove 44, so that the possibility of displacement and deflection of the roller 4 is reduced, and the shock resistance of the self-aligning roller bearing is improved.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a self-aligning roller bearing for vibrating machinery, includes outer ring (1), inner ring (2), holder (3) and roller (4), outer ring (1) with inner ring (2) coaxial setting, holder (3) are connected on the outer rampart of inner ring (2), it has a plurality of pocket holes (31) to open on holder (3), a plurality of pocket holes (31) set up into two rows, every row pocket hole (31) all round the centre of a circle equipartition of holder (3), two rows pocket hole (31) set up relatively, roller (4) are every all rotate in pocket hole (31) and connect one, roller (4) are contradicted on the inner rampart of outer ring (1), its characterized in that: two rows of opposite end walls of the rollers (4) are provided with sliding holes (41), the sliding holes (41) are located at the axis positions of the rollers (4), limiting rods (42) are in sliding fit in the sliding holes (41), ejection springs (43) are arranged between the limiting rods (42) and the bottom walls of the sliding holes (41), limiting holes (32) are formed in the positions, corresponding to the sliding holes (41), of the retainer (3), and when the rollers (4) are located in the pocket holes (31), the limiting rods (42) are located in the sliding holes (41) and the limiting holes (32) at the same time.

2. A self-aligning roller bearing for a vibration machine according to claim 1, wherein: pocket (31) axial direction's opening part is connected with shutoff board (35), shutoff board (35) laminating the tip of roller (4).

3. The self-aligning roller bearing for a vibration machine according to claim 2, wherein: the blocking plate (35) is provided with a placing groove (351), an elastic metal sheet (5) is installed in the placing groove (351), the elastic metal sheet (5) is arranged in a hollow round table shape, the axial direction of the elastic metal sheet (5) is located on the same straight line with the axial direction of the roller (4), the smaller end of the elastic metal sheet (5) is close to the roller (4), the roller (4) is far away from one end of the sliding hole (41) is provided with a limiting groove (44) matched with the appearance of the elastic metal sheet (5), and one part of the elastic metal sheet (5) is located in the limiting groove (44).

4. The self-aligning roller bearing for a vibration machine according to claim 1, wherein: it has a plurality of first oil through holes (11), a plurality of to open on outer ring (1) first oil through hole (11) round the centre of a circle equipartition of outer ring (1), holder (3) correspond the position department of first oil through hole (11) is opened there is oil groove (33), oil groove (33) intercommunication is every pocket hole (31).

5. The self-aligning roller bearing for a vibration machine according to claim 4, wherein: a plurality of oil passages (34) are formed in the oil groove (33), and the oil passages (34) are communicated with the limiting holes (32).

6. A self-aligning roller bearing for a vibration machine according to claim 3, wherein: and a second oil through hole (411) is formed in the bottom wall of the sliding hole (41), and the second oil through hole (411) is communicated with the limiting groove (44).

7. The self-aligning roller bearing for a vibration machine according to claim 1, wherein: the end part of the limiting rod (42) close to the limiting hole (32) is provided with a round angle.

8. The self-aligning roller bearing for a vibration machine according to claim 1, wherein: two ends, close to the inner ring (2), of the outer ring wall of the inner ring (2) are respectively connected with a retaining ring (6), and a gap is reserved between the retaining rings (6) and the inner ring wall of the outer ring (1).