CN219345260U

CN219345260U - Rolling bearing

Info

Publication number: CN219345260U
Application number: CN202320937195.7U
Authority: CN
Inventors: 黄伦忠; 阙桂英; 徐慧红
Original assignee: Ningbo Essen Boleyn Bearing Co ltd
Current assignee: Ningbo Essen Boleyn Bearing Co ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-07-14
Anticipated expiration: 2033-04-21

Abstract

The utility model discloses a rolling bearing, which comprises an inner ring, wherein an outer ring is sleeved on the inner ring in a rotating way, a retainer is movably arranged between the inner ring and the outer ring, a plurality of rolling bodies are arranged in the middle of the retainer in a rolling way, the rolling bodies are movably clamped between the inner ring and the outer ring, a first bearing seat and a second bearing seat are movably sleeved on the outer ring, and fixing mechanisms for fixing the rolling bearing in the bearing seats are arranged on the outer ring, the first bearing seat and the second bearing seat.

Description

Rolling bearing

Technical Field

The utility model relates to the technical field of rolling bearings, in particular to a rolling bearing.

Background

The rolling bearing is a precise mechanical element which changes sliding friction between an operating shaft and a shaft seat into rolling friction so as to reduce friction loss, the rolling bearing generally consists of an inner ring, an outer ring, rolling bodies and a retainer, the inner ring is used for being matched with the shaft and rotating together with the shaft, the outer ring is used for being matched with a bearing seat to play a supporting role, the rolling bodies are uniformly distributed between the inner ring and the outer ring by means of the retainer, the shape, the size and the number of the rolling bodies directly influence the service performance and the service life of the rolling bearing, the retainer can uniformly distribute the rolling bodies and guide the rolling bodies to rotate for lubrication, and the common rolling bearing is used for connecting the bearing outer ring with the bearing seat in a welding mode, so that the rolling bearing is very complicated to install and is not easy to detach.

Among the prior art, the antifriction bearing of publication No. CN203585128U, including the outer lane of assembly on the lower carriage, the inner circle of assembly on the axle, rolling element and holder, the rolling element sets up on the holder, rolling element and holder set up in the raceway that outer lane and inner circle formed, the outer lane includes outer lane halve and outer lane halve, the support includes upper bracket and lower carriage, wherein, outer lane halve and upper bracket welding, outer lane halve and lower carriage welding, upper bracket and lower carriage pass through bolted connection, outer lane halve and outer lane halve cooperation become circular.

However, the prior art still has great disadvantages, such as:

the upper half part of the outer ring of the rolling bearing is welded with the upper support, the lower half part of the outer ring is welded with the lower support, and the upper support and the lower support are connected through bolts, so that the rolling bearing is connected with the support in a welding mode, the rolling bearing or the support is very complicated to install, and when the rolling bearing or the support needs to be replaced, the rolling bearing and the support cannot be separated, and only the rolling bearing and the support can be replaced together, so that the use cost is increased.

Disclosure of Invention

The present utility model is directed to a rolling bearing to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the rolling bearing comprises an inner ring, wherein an outer ring is sleeved on the inner ring in a rotating manner, a retainer is movably arranged between the inner ring and the outer ring, a plurality of rolling bodies are arranged in the middle of the retainer in a rolling manner, the rolling bodies are movably clamped between the inner ring and the outer ring, a first bearing seat and a second bearing seat are movably sleeved on the outer ring, and first threaded holes are formed in the first bearing seat and the second bearing seat;

the outer ring, the first bearing seat and the second bearing seat are provided with fixing mechanisms for fixing the rolling bearings in the bearing seats.

Preferably, the fixing mechanism comprises a protruding block fixedly arranged on the outer side wall of the outer ring, the first bearing seat and the second bearing seat are both provided with bearing grooves, the first bearing seat and the second bearing seat are both provided with rotating shaft holes communicated with the bearing grooves, and the inner wall of the bearing grooves is provided with clamping grooves for the protruding blocks to be inserted.

Preferably, the first bearing seat and the second bearing seat are fixedly provided with inserted bars on the inner wall far away from one side of the rotating shaft hole, slots for enabling the inserted bars to be inserted are formed in one sides far away from the rotating shaft hole, movable plates are movably arranged in the clamping grooves, ejector rods are fixedly connected with the movable plates, one ends of the ejector rods far away from the movable plates are movably inserted into the slots, extension springs sleeved on the ejector rods are fixedly connected with the inner walls of the movable plates and the clamping grooves, and wedge blocks are symmetrically and fixedly arranged on one sides of the movable plates far away from the ejector rods.

Preferably, the first bearing seat and the second bearing seat are both fixedly provided with fixed feet, and the fixed feet are provided with second threaded holes.

Preferably, the number of the lugs is consistent with the number of the lugs and the positions of the lugs are corresponding, and the space for the lugs is larger than the lug.

Preferably, the first threaded holes are at least four and symmetrically arranged, and the first threaded holes formed in the first bearing seat and the second bearing seat can be communicated.

Preferably, the wedge is inverted triangle and is fixedly arranged at two ends of the movable plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. the first bearing seat and the second bearing seat are combined through bolts, the rolling bearing is clamped in the bearing grooves of the first bearing seat and the second bearing seat, the lug on the outer ring of the rolling bearing is inserted into the clamping groove of the bearing seat, when the first bearing seat and the second bearing seat are combined, the inserted rod is inserted into the inserting groove to extrude the ejector rod, so that the wedge block moves towards the rolling bearing, the lug is propped and fixed, the outer ring of the lug is limited to rotate on the bearing seat in the clamping groove, the lug is fixedly clamped in the clamping groove, the rolling bearing is prevented from loosening in the bearing seat, the rolling bearing is firmly fixed in the bearing seat and cannot loosen, and the rolling bearing is convenient to install and detach in the bearing seat.

2. The inner walls of the bearing grooves of the first bearing seat and the second bearing seat can block the gap between the inner ring and the outer ring of the rolling bearing, so that foreign matters or dust can be prevented from entering the rolling bodies in the use process to influence the rotation of the rolling bearing in the bearing seat.

In the using process, the lug on the outer ring of the rolling bearing is aligned with the clamping groove on the first bearing seat, the rolling bearing is placed in the bearing groove, the first bearing seat and the second bearing seat are combined by utilizing the bolts, so that the rolling bearing is wrapped in the bearing seat, when the first bearing seat and the second bearing seat are combined, the inserted rod on the inserted rod is inserted into the slot, the inserted rod extrudes the ejector rod to enable the ejector rod to eject towards the lug, so that the movable plate and the wedge block are driven to slide towards the lug, the wedge block supports and fixes the lug, the rolling bearing is firmly fixed in the bearing seat, the rolling bearing is prevented from loosening in the bearing seat, gaps between the inner ring and the outer ring at the rolling body are blocked by the inner wall of the bearing groove, and dust and foreign matters are prevented from entering the gaps to influence the rolling of the rolling body, so that the rotation of the rolling bearing is influenced.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of a first bearing seat according to the present utility model;

FIG. 3 is a schematic perspective view of a rolling bearing according to the present utility model;

FIG. 4 is a schematic diagram of a test structure according to the present utility model;

fig. 5 is an enlarged schematic view of the area of fig. 4A.

In the figure: 1. an inner ring; 2. an outer ring; 3. a retainer; 4. a rolling element; 5. a first bearing seat; 6. a second bearing seat; 7. a first threaded hole; 8. a bump; 9. a bearing groove; 10. a rotation shaft hole; 11. a clamping groove; 12. a rod; 13. a slot; 14. a movable plate; 15. a push rod; 16. a tension spring; 17. wedge blocks; 18. a fixed foot; 19. and a second threaded hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution:

embodiment one:

the utility model provides a antifriction bearing, including inner circle 1, inner circle 1 and pivot fixed connection, and rotate along with the pivot, inner circle 1 rotates the cover and is equipped with outer lane 2, outer lane 2 is fixed in the bearing frame, inner circle 1 rotates with outer lane 2 relatively, movable cage 3 is provided with between inner circle 1 and the outer lane 2, cage 3 intermediate roll is provided with a plurality of rolling element 4, rolling element 4 activity card is established between inner circle 1 and outer lane 2, rolling element 4 sets up to four and evenly distributed in the track of inner circle 1 and outer lane 2 at least, cage 3 can make rolling element 4 evenly distributed, guide rolling element 4 rotation lubrication action, movable sleeve is equipped with first bearing frame 5 and second bearing frame 6 on the outer lane 2, first bearing frame 5 and second bearing frame 6 merge the back and can form a complete bearing frame, first screw hole 7 has all been seted up to first bearing frame 5 and second bearing frame 6, first screw hole 7 is provided with four and symmetry setting at least, first screw hole 7 that set up on first bearing frame 5 and the second bearing frame 6 can communicate, first screw hole 7 on them align when the bearing frame 6 aligns, first screw hole 7 on them also can pass first bearing frame 5 and second bearing frame 6 and just fix the second bearing frame 5 through first bearing frame 5 and second bearing frame 6 on the second bearing frame 6.

Embodiment two:

the first embodiment discloses a fixing mechanism, specifically: the fixing mechanism comprises a bump 8 fixedly arranged on the outer side wall of the outer ring 2, the bump 8 is at least provided with two, and symmetrically and fixedly arranged on the outer side wall of the outer ring 2, a bearing groove 9 is formed in each of the first bearing seat 5 and the second bearing seat 6, a rotating shaft hole 10 communicated with the bearing groove 9 is formed in each of the first bearing seat 5 and the second bearing seat 6, a clamping groove 11 for inserting the bump 8 is formed in the inner wall of the bearing groove 9, the number of the clamping grooves 11 formed in each of the first bearing seat 5 and the second bearing seat 6 is consistent with the number of the bumps 8 and the positions of the clamping grooves are corresponding, the radial height of the clamping grooves 11 is required to be greater than the radial height of the bumps 8, the width of the clamping grooves 11 is required to be greater than the width of the bumps 8, the bumps 8 are conveniently placed in the clamping grooves 11, the depth of the clamping grooves 11 is half the length of the bumps 8, and the corresponding depths of the two clamping grooves 11 when the first bearing seat 5 and the second bearing seat 6 are combined are exactly the length of the bumps 8, the outer ring 2 will not shake left and right between the first bearing seat 5 and the second bearing seat 6, the diameter of the bearing groove 9 is slightly larger than the diameter of the outer side of the outer ring 2, the rolling bearing is conveniently placed in the bearing groove 9, the diameter of the rotating shaft hole 10 needs to be larger than the diameter of the inner side of the inner ring 1 and smaller than the diameter of the outer side of the inner ring 1, the rotating shaft can pass through the rotating shaft hole 10, the friction between the rotating shaft and the inner wall of the rotating shaft hole 10 is avoided, the annular baffle formed by the bearing groove 9 and the rotating shaft hole 10 can block the gap between the inner ring 1 and the outer ring 2, dust and foreign matters are prevented from entering the rolling body 4, the first bearing seat 5 and the second bearing seat 6 are fixedly provided with inserting rods 12 on the inner wall of one side far away from the rotating shaft hole 10, the first bearing seat 5 and the second bearing seat 6 are provided with inserting slots 13 which can enable the inserting rods 12 to be inserted on one side far away from the rotating shaft hole 10, the number of the inserted bars 12 and the slots 13 is consistent with that of the convex blocks 8 and the clamping grooves 11, the movable plates 14 are movably arranged in the clamping grooves 11, the ejector rods 15 are fixedly connected with the movable plates 14, one ends of the ejector rods 15, which are far away from the movable plates 14, are movably inserted into the slots 13, the movable plates 14 and the inner walls of the clamping grooves 11 are fixedly connected with the extension springs 16 sleeved on the ejector rods 15, wedge blocks 17 are symmetrically and fixedly arranged on one sides of the movable plates 14, which are far away from the ejector rods 15, the wedge blocks 17 are inverted triangle-shaped and fixedly arranged at two ends of the movable plates 14, the parts of the ejector rods 15 in the slots 13 are triangle-shaped, the inserted bars 12 are conveniently extruded to move, the ejector rods 15 can drive the movable plates 14 and the wedge blocks 17 to move in the clamping grooves 11, after the inserted bars 12 are inserted into the slots 13, the ejector rods 15 drive the movable plates 14 and the wedge blocks 17 to move towards the convex blocks 8, the wedge blocks 17 are inverted triangle-shaped, and are inserted into gaps between the convex blocks 8 and the inner walls of the clamping grooves 11 during movement, thereby the convex blocks 8 are fixedly arranged, the rolling bearings are fixedly arranged on the sides of the inner walls of the ejector blocks, the bearing blocks cannot shake in the bearing blocks, the first bearing blocks 5 and the second bearing blocks 6 are fixedly arranged at the positions, the second threaded holes 18 are fixedly arranged at the positions, and the positions of the second bearing blocks can be fixedly arranged at the positions and fixed by bolts 19.

Working principle: firstly, a lug 8 on an outer ring 2 of a rolling bearing is aligned with a clamping groove 11 on a first bearing seat 5, the rolling bearing is placed in a bearing groove 9, the first bearing seat 5 and a second bearing seat 6 are combined by utilizing bolts, so that the rolling bearing is wrapped in the bearing seat, when the first bearing seat 5 and the second bearing seat 6 are combined, a plug rod 12 on the first bearing seat 5 is inserted into a slot 13, the plug rod 12 presses a push rod 15 to push the push rod 15 out of the direction of the lug 8, so that a movable plate 14 and a wedge block 17 are driven to slide towards the lug 8, the wedge block 17 is inserted into a gap between the lug 8 and the inner wall of the clamping groove 11, so that the lug 8 is propped against and fixed, the rolling bearing is firmly fixed in the bearing seat, a gap between the inner ring 1 and the outer ring 2 at a position of a rolling body 4 is blocked by the inner wall of the bearing groove 9, dust and foreign matters are prevented from entering the gap to influence the rolling of the rolling body 4, and when the combined first bearing seat 5 and second bearing seat 6 are inserted into a second threaded hole 19 by bolts, and when the rolling bearing is required to be separated from the bearing seat, the first bearing seat 5 and the second bearing seat 6 are required to be separated by opening the bolts, and the rolling bearing seat can be taken out.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a antifriction bearing, includes inner circle (1), inner circle (1) rotate the cover and are equipped with outer lane (2), the activity is provided with holder (3) between inner circle (1) and outer lane (2), the roll is provided with a plurality of rolling element (4) in the middle of holder (3), rolling element (4) activity card is established between inner circle (1) and outer lane (2), its characterized in that: a first bearing seat (5) and a second bearing seat (6) are movably sleeved on the outer ring (2), and the first bearing seat (5) and the second bearing seat (6) are provided with first threaded holes (7);

the outer ring (2), the first bearing seat (5) and the second bearing seat (6) are provided with fixing mechanisms for fixing the rolling bearings in the bearing seats.

2. A rolling bearing according to claim 1, characterized in that: the fixing mechanism comprises a protruding block (8) fixedly arranged on the outer side wall of the outer ring (2), bearing grooves (9) are formed in the first bearing seat (5) and the second bearing seat (6), rotating shaft holes (10) communicated with the bearing grooves (9) are formed in the first bearing seat (5) and the second bearing seat (6), and clamping grooves (11) for the protruding block (8) to be inserted are formed in the inner wall of the bearing grooves (9).

3. A rolling bearing according to claim 2, characterized in that: the utility model discloses a telescopic device for a bicycle, including pivot hole (10) and fixed slot (15) of inserting, first bearing frame (5) and second bearing frame (6) are all fixed on the inner wall of keeping away from pivot hole (10) one side, first bearing frame (5) and second bearing frame (6) all have seted up and have enabled inserted slot (13) of inserting of inserted bar (12) in one side of keeping away from pivot hole (10), draw-in groove (11) internal activity is provided with fly leaf (14), fly leaf (14) fixedly connected with ejector pin (15), in one end activity that fly leaf (14) were kept away from to ejector pin (15) inserts slot (13), extension spring (16) of cover on ejector pin (15) are established with the inner wall fixedly connected with cover of draw-in groove (11), one side symmetry that ejector pin (15) were kept away from to fly leaf (14) is provided with voussoir (17).

4. A rolling bearing according to claim 3, characterized in that: the first bearing seat (5) and the second bearing seat (6) are fixedly provided with fixing feet (18), and the fixing feet (18) are provided with second threaded holes (19).

5. A rolling bearing according to claim 2, characterized in that: the number of the clamping grooves (11) is consistent with the number of the protruding blocks (8) and the positions of the clamping grooves are corresponding, and the space of the clamping grooves (11) is larger than that of the protruding blocks (8).

6. A rolling bearing according to claim 1, characterized in that: the first threaded holes (7) are at least four and symmetrically arranged, and the first threaded holes (7) formed in the first bearing seat (5) and the second bearing seat (6) can be communicated.

7. A rolling bearing according to claim 3, characterized in that: the wedge blocks (17) are inverted triangle in shape and fixedly arranged at two ends of the movable plate (14).