CN217582883U

CN217582883U - Double concentric sleeve outer spherical surface ball bearing

Info

Publication number: CN217582883U
Application number: CN202221435375.7U
Authority: CN
Inventors: 沈士礼
Original assignee: Jiangsu Suxin Bearing Housings Co ltd
Current assignee: Jiangsu Suxin Bearing Housings Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-10-14
Anticipated expiration: 2032-06-10

Abstract

The utility model relates to a two concentric cover insert ball bearing, including bearing inner race, the bearing inner race that the roll set up on bearing inner race and set up the locking Assembly who circles in the bearing, locking Assembly is a set of, two locking Assembly symmetries set up the outer wall both ends at bearing inner race, locking Assembly includes the through-hole, the arc wall, the arc gasket, concentric cover and locking screw, circle and set up locking Assembly through setting up in the bearing, the cracked problem of bearing that the screw department stress concentration of bearing inner race eccentric end caused has been solved, through setting up the contained angle in the axle center of two through-holes to one hundred twenty degrees, make and can form the moment contained angle of two directions, can bear the rotatory moment of just reversing, the area of contact through setting up arc gasket has increased locking screw, avoid at locking screw fish tail rotation axis, influence the assembly performance of rotation axis, through seting up ring channel and oil filler point on the bearing outer race, the relubrication system that can cooperate the bearing frame, for the inside lubricating grease that fills of bearing.

Description

Double concentric sleeve outer spherical surface ball bearing

The technical field is as follows:

the utility model relates to an insert ball bearing technical field especially relates to a two concentric cover insert ball bearing.

Background art:

at present, the spherical outer bearing is widely used in agricultural machinery, textile machinery, food machinery, mining machinery, refrigeration machinery, conveyer belt system and other equipment, and the existing spherical outer bearing locking mode is as follows: the UC series bearings are directly locked by screws, the UEL series bearings are locked by eccentric sleeves, the UK series bearings are locked by tightening sleeves, and the SC series bearings are locked by inner hole interference fit. The locking modes are different and have defects respectively, for example, in a screw locking mode bearing, when an inner ring is subjected to large starting torque, the inner ring is easy to crack, and as shown in an eccentric sleeve locking mode bearing shown in fig. 5, the bearing can only rotate towards one direction, and the inner ring of the bearing can be cracked due to stress concentration at the thread part of the eccentric end of the inner ring.

The utility model has the following contents:

the utility model aims at prior art's defect, provide a structural design is reasonable, can positive and negative rotatory moment, prevent the cracked two concentric cover insert spherical ball bearings of bearing inner circle.

The utility model discloses a realize through following technical scheme: the utility model provides a two concentric cover insert spherical ball bearing, includes bearing inner race, rolls bearing inner race and the locking Assembly who sets up at bearing inner race on, locking Assembly is a set of, and two locking Assembly symmetries set up the outer wall both ends at bearing inner race, and locking Assembly includes through-hole, arc wall, arc gasket, concentric cover and locking screw, the arc wall is seted up on bearing inner race's inner wall, and the embedding has the arc gasket corresponding with the arc wall in the arc wall, and the through-hole that runs through bearing inner race outer wall is seted up at the both ends of arc wall, concentric cover is a set of, and two concentric cover cup joints the both ends at bearing inner race, and concentric sheathes in and set up a set of screw hole that runs through its outer wall, and two screw holes set up with two through-hole coaxial respectively, and the diameter of through-hole is greater than the internal diameter of screw hole, screw hole female connection has locking screw, locking screw and arc gasket counterbalance lean on.

In order to conveniently install the arc-shaped gasket and form a moment included angle in two directions, the rotating moment capable of rotating forward and backward can be borne, and the included angle of the axes of the two through holes of the locking assembly is one hundred twenty degrees.

In order to match a re-lubrication system of the bearing seat, lubricating grease is filled in the bearing, an annular groove is formed in the outer wall of the bearing outer ring, and a plurality of oil injection holes penetrating through the inner wall of the bearing outer ring are formed in the bottom end of the annular groove.

In order to avoid the overflow of grease and the entry of dust into the bearing, a seal is arranged between the bearing inner ring and the bearing outer ring.

The utility model has the advantages that: set up locking Assembly on bearing inner race through the setting, the cracked problem of bearing that the screw thread department stress concentration of bearing inner race eccentric end caused has been solved, the contained angle through the axle center with two through-holes sets up to one hundred twenty degrees, make and can form the moment contained angle of two directions, can bear the rotatory moment of just reversing, area of contact through setting up the arc gasket and having increased locking screw, avoid at locking screw fish tail rotation axis, influence the assembly performance of rotation axis, through seting up ring channel and oil filler point on the bearing outer race, the relubrication system of bearing frame can cooperate, for the inside lubricating grease that fills of bearing.

Description of the drawings:

fig. 1 is a schematic plan structure view of a double concentric sleeve insert spherical ball bearing of the present invention;

FIG. 2 is a schematic view of the assembly of the bearing inner race and the concentric sleeve of the present invention;

fig. 3 is a schematic perspective view of the bearing inner race of the present invention;

fig. 4 is a schematic perspective view of the arc-shaped gasket of the present invention;

fig. 5 is a schematic view of a bearing structure before the improvement of the present invention.

The specific implementation mode is as follows:

the following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.

As shown in fig. 1-4, the double-concentric-sleeve spherical outside surface ball bearing comprises a bearing inner ring 1, a bearing outer ring 2 arranged on the bearing inner ring 1 in a rolling manner, and locking assemblies 3 arranged on the bearing inner ring 1, wherein the locking assemblies 3 are in a group, the two locking assemblies 3 are symmetrically arranged at two ends of the outer wall of the bearing inner ring 1, each locking assembly 3 comprises a through hole 31, an arc-shaped groove 32, an arc-shaped gasket 33, a concentric sleeve 34 and a locking screw 35, the arc-shaped groove 32 is arranged on the inner wall of the bearing inner ring 1, the arc-shaped gasket 33 corresponding to the arc-shaped groove 32 is embedded in the arc-shaped groove 32, the through holes 31 penetrating through the outer wall of the bearing inner ring 1 are arranged at two ends of the arc-shaped groove 32, the concentric sleeve 34 is in a group, two concentric sleeves 34 cup joint at the both ends of bearing inner race 1, set up a set of screw hole 341 that runs through its outer wall on the concentric sleeve 34, two screw holes 341 respectively with two through-holes 31 coaxial setting, and the diameter of through-hole 31 is greater than the internal diameter of screw hole 341, seted up the internal thread in the screw hole 341, locking screw 35 threaded connection is in screw hole 341, locking screw 35 supports with arc gasket 33 and leans on, adjusts the elasticity between arc gasket 33 and the rotation axis through screwing up locking screw 35, has increased locking screw 35's area of contact through setting up arc gasket 33, avoids at locking screw 35 fish tail rotation axis, influences the assembly performance of rotation axis.

The arc-shaped gasket 33 is made by rolling a copper sheet, and the copper sheet has good ductility and can be tightly attached to the rotating shaft.

The bearing is characterized in that the outer wall of the bearing outer ring 2 is provided with an annular groove 4, the bottom end of the annular groove 4 is provided with a plurality of oil injection holes 5 penetrating through the inner wall of the bearing outer ring 2, and the annular groove 4 is communicated with an oil nozzle of a bearing seat, so that rolling ball lubrication of the bearing can be rapidly realized, and the service life of the bearing is prolonged.

And a pair of seals 6 for dust prevention and oil spill prevention are arranged between the bearing inner ring 1 and the bearing outer ring 2.

The bearing inner ring is assembled on the rotating shaft, the locking screw 35 is screwed down, so that the arc-shaped gasket 33 is in close contact with the rotating shaft, and the radial fixation of the rotating shaft and the bearing inner ring is realized.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a two outer spherical ball bearings of concentric cover, includes bearing inner race (1), rolls bearing inner race (2) and locking Assembly (3) of setting on bearing inner race (1) that set up on bearing inner race (1), its characterized in that: locking Assembly (3) are a set of, and two locking Assembly (3) symmetry sets up at the outer wall both ends of bearing inner race (1), and locking Assembly (3) include through-hole (31), arc wall (32), arc gasket (33), concentric cover (34) and locking screw (35), arc wall (32) are seted up on the inner wall of bearing inner race (1), and arc gasket (33) corresponding with arc wall (32) are embedded into in arc wall (32), and through-hole (31) that run through bearing inner race (1) outer wall are seted up at the both ends of arc wall (32), and concentric cover (34) are a set of, and two concentric cover (34) cup joint the both ends of bearing inner race (1), set up a set of screw hole (341) that run through its outer wall on concentric cover (34), and two screw hole (341) are respectively with two through-hole (31) coaxial settings, and the diameter of through-hole (31) is greater than the internal diameter of screw hole (341), and screw hole (35) female connection has locking screw (35), locking Assembly (35) lean on the counterbalance with arc gasket (33).

2. The dual concentric sleeve insert spherical bearing according to claim 1, wherein: the included angle of the axes of the two through holes (31) of the locking component (3) is one hundred twenty degrees.

3. The dual concentric sleeve insert spherical ball bearing of claim 1, wherein: the bearing outer ring is characterized in that the outer wall of the bearing outer ring (2) is provided with an annular groove (4), and the bottom end of the annular groove (4) is provided with a plurality of oil filling holes (5) penetrating through the inner wall of the bearing outer ring (2).

4. The dual concentric sleeve spherical-outside bearing according to claim 2, wherein: and a seal (6) is arranged between the bearing inner ring (1) and the bearing outer ring (2).