CN211474670U - A tapered roller composite bearing - Google Patents

Abstract

A tapered roller composite bearing relates to a composite bearing, wherein two inner rings B (11) are respectively sleeved on both sides of the inner ring A (8), and the enlarged neck ends of the two inner rings B (11) are respectively connected to a raised ring. The two bottom surfaces of (9) are in contact, the two end caps (4) are placed on the two ends of the outer ring A (1) respectively, the two through holes (18) are respectively sleeved on both ends of the inner ring A (8), and the two top rings are (17) respectively penetrate deep into the inner wall A (14) of the outer ring and abut on the enlarged neck ends of the two outer rings B (13). The tapered roller bearings are arranged at intervals between the rings A, and the top ring provided on the end cover is used to top the outer ring B, so that the tapered rollers are used to drive the outer ring A, the end cover and the outer ring B to rotate together. The purpose of replacing a single tapered roller bearing when part of the tapered roller is worn.

Description

A tapered roller composite bearing

technical field

The utility model relates to a composite bearing, in particular to a tapered roller composite bearing.

Background technique

Bearing is an important component in contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy; ordinary double-row tapered rollers are used on the rolling machine. When the bearing is used, the entire tapered roller bearing must be replaced after the tapered roller on one side of the ordinary double-row tapered roller bearing is damaged, and the outer wall of the outer ring of the ordinary tapered roller bearing is generally flat, which is not conducive to the rolling machine. Use, ordinary double-row tapered roller bearings are not conducive to the long-term retention of bearing oil in the tapered rollers due to the existence of the cage. In order to avoid this drawback, it is necessary to use composite bearings.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies in the background technology, the present utility model discloses a tapered roller composite bearing. The inner ring A is sleeved in the outer ring A, and the tapered roller bearing is spaced between the inner ring A and the outer ring A. The top ring provided on the end cover is placed on the outer ring B, and the tapered rollers are used to drive the common rotation of the outer ring A, the end cover and the outer ring B, so that a single tapered roller can be replaced when some of the tapered rollers are worn. the purpose of the sub bearing.

In order to achieve the purpose of the invention, the utility model adopts the following technical solutions:

A tapered roller composite bearing, comprising an outer ring A, an end cover, a tapered roller bearing and an inner ring A, the end faces at both ends of the outer ring A are respectively provided with a number of screw holes around the central hole at intervals, and a central part of the end cover is provided with a plurality of screw holes. The perforation is provided with an annular groove on the inner wall of the perforation, a top ring is provided on a bottom surface of the end cover, and a through hole is provided on the end cover at the outer side of the top ring surrounding the perforation and corresponding to the screw hole, There is a raised ring in the middle of the outer edge surface of the inner ring A, the inner ring A is sleeved in the outer ring A, and the two tapered roller bearings are placed on both sides of the raised ring between the inner ring A and the outer ring A, respectively. The roller bearing includes outer ring B, inner ring B and tapered rollers. The inner wall B of the outer ring of the outer ring B is one side expanded and the other is constricted, and the inner ring outer wall B of the inner ring B is one side expanded and the other is constricted. The neck and cage confine the multiple tapered rollers on the outer wall B of the inner ring, the outer ring A is sleeved outside the multiple tapered rollers, the two inner rings B are respectively sleeved on both sides of the inner ring A, and the expansion of the two inner rings B is The neck ends are respectively in contact with the two bottom surfaces of the raised ring, the two end caps are respectively placed on the two ends of the outer ring A, the two through holes are respectively sleeved on both ends of the inner ring A, and the two top rings are respectively penetrated into the inner wall A of the outer ring and Abutting on the enlarged neck ends of the two outer rings B, a snap spring is respectively provided between the annular grooves provided by the two perforations and the inner ring outer wall A of the inner ring A, and the through holes and outer The screw holes provided at both ends of the ring A pass through and are fastened with bolts.

In the tapered roller composite bearing, the outer wall of the outer ring of the outer ring A is of a convex arc surface structure.

In the tapered roller composite bearing, a chamfer transition is set between the outer wall of the outer ring A and the two end faces of the outer ring A.

The tapered roller composite bearing is provided with a joint on the circlip.

In the tapered roller composite bearing, the through hole and the inner ring A are clearance fit.

In the tapered roller composite bearing, raised rings are respectively provided at both ends of the inner ring outer wall B of the inner ring B, and the cage confines the plurality of tapered rollers to the raised rings respectively provided at both ends of the inner ring outer wall B. between.

The tapered roller composite bearing is provided with an expanding neck at one end of the through hole, and the bolt head of the bolt is placed in the expanding neck.

Owing to adopting the above-mentioned technical scheme, the utility model has the following beneficial effects:

In the tapered roller composite bearing of the present invention, the inner ring A is sleeved in the outer ring A, the tapered roller bearing is spaced between the inner ring A and the outer ring A, and the top ring provided on the end cover is used. On top of the outer ring B, the tapered rollers are used to drive the common rotation of the outer ring A, the end cover and the outer ring B, so that a single tapered roller bearing can be replaced when some tapered rollers are worn out. The roller bearing also provides larger axial and radial loads; the utility model has novel and unique design, strong axial and radial bearing capacities, stable operation, and great market promotion value.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the left side view of Fig. 1;

Fig. 3 is the structural representation of the outer ring of the utility model;

Fig. 4 is the structural representation of the inner ring of the utility model;

5 is a schematic structural diagram of an end cap of the present invention;

Fig. 6 is the three-dimensional structure schematic diagram of the end cap of the present invention;

Fig. 7 is the structural representation of the circlip of the present utility model;

FIG. 8 is a schematic structural diagram of the tapered roller bearing of the present invention.

In the figure: 1. Outer ring A; 2. Bolt; 3. Tapped hole; 4. End cover; 5. Tapered roller bearing; 6. Annular groove; 7. Circlip; 8. Inner ring A; 9. Convex 10. Outer wall of inner ring; 11. Inner ring B; 12. Tapered roller; 13. Outer ring B; 14. Inner wall of outer ring; 18, perforation; 19, joint; 20, inner wall B of outer ring; 21, cage; 22, outer wall B of inner ring.

Detailed ways

The present utility model can be explained in more detail through the following examples, the present utility model is not limited to the following examples, and the purpose of disclosing the present utility model is to protect all changes and improvements within the scope of the present utility model;

The tapered roller composite bearing described in conjunction with Figures 1 to 8 includes an outer ring A1, an end cover 4, a tapered roller bearing 5 and an inner ring A8. The outer wall of the outer ring of the outer ring A1 is a convex arc structure, and the A chamfer transition is set between the outer wall of the outer ring and the two end faces of the outer ring A1. The end faces of the two ends of the outer ring A1 are respectively provided with a number of screw holes 3 around the central hole, and a perforation 18 is provided in the center of the end cover 4. The inner wall of the through hole 18 is provided with an annular groove 6, a bottom surface of the end cover 4 is provided with a top ring 17, and the end cover 4 is located on the outer side of the top ring 17 surrounding the through hole 18 and at the position corresponding to the screw hole 3 A through hole 15 is provided, a raised ring 9 is provided in the middle of the outer edge surface of the inner ring A8, the inner ring A8 is sleeved in the outer ring A1, and the two tapered roller bearings 5 are respectively placed between the inner ring A8 and the outer ring A1 On both sides of the raised ring 9, the tapered roller bearing 5 includes the outer ring B13, the inner ring B11 and the tapered roller 12. The inner wall B20 of the outer ring of the outer ring B13 is necked on one side and necked on the other side. The outer wall B22 of the ring is necked on one side and necked on the other side, and two ends of the outer wall B22 of the inner ring of the inner ring B11 are respectively provided with raised rings. The cage 21 confines the plurality of tapered rollers 12 at both ends of the outer wall B22 of the inner ring respectively Between the raised rings provided, the outer ring A1 is sleeved on the outside of the plurality of tapered rollers 12, the two inner rings B11 are sleeved on both sides of the inner ring A8 respectively, and the enlarged neck ends of the two inner rings B11 are respectively connected to the raised ring 9. The two bottom surfaces of the outer ring A1 are in contact with each other, the two end caps 4 are respectively placed at both ends of the outer ring A1, the two through holes 18 are respectively sleeved on both ends of the inner ring A8, the through holes 18 and the inner ring A8 are clearance fit, and the two top rings 17 are respectively deep The inner wall A14 of the outer ring is in contact with the enlarged neck ends of the two outer rings B13, and a retaining spring 7 is respectively provided between the annular groove 6 provided by the two through holes 18 and the outer wall A10 of the inner ring of the inner ring A8. The spring 7 is provided with a joint 19, the through holes 15 respectively provided in the two end caps 4 and the screw holes 3 respectively provided at both ends of the outer ring A1 pass through and are fastened with bolts 2, and an expansion neck is provided at one end of the through hole 15. 16. The head of the bolt 2 is placed in the expanded neck 16.

To implement the tapered roller composite bearing of the present invention, when in use, the inner ring A8 is sleeved in the outer ring A1, and the two tapered roller bearings 5 are respectively placed on the raised ring 9 between the inner ring A8 and the outer ring A1. On both sides, the two inner rings B11 are respectively sleeved on both sides of the inner ring A8, the enlarged neck ends of the two inner rings B11 are in contact with the two bottom surfaces of the raised ring 9 respectively, and appropriate bearings are injected into the two tapered roller bearings 5. Oil, place the two end caps 4 on the two ends of the outer ring A1 respectively, so that the two through holes 18 are respectively sleeved on the two ends of the inner ring A8, and the two top rings 17 are respectively penetrated into the inner wall A14 of the outer ring and abut against the two outer rings B13 On the expanded neck end, the through holes 15 provided on the two end caps 4 and the screw holes 3 respectively provided on both ends of the outer ring A1 are passed through and fastened with bolts 2, and the utility model is sleeved on the coil of the plate rolling machine. On the plate shaft, the outer ring A1 together with the end cover 4 and the outer ring B13 are all driven by the tapered roller 12 to rotate, and the outer wall of the outer ring of the outer ring A1 is used to contact the plate to be rolled, and the purpose of stabilizing the plate by the utility model can be realized. , when some of the tapered rollers 12 are damaged, the detachable bolts 2 can be replaced.

The part not described in detail in this utility model is the prior art.

Claims (7)

1. A tapered roller composite bearing is characterized in that: the bearing comprises an outer ring A (1), an end cover (4), tapered roller bearings (5) and an inner ring A (8), wherein a plurality of screw holes (3) are formed in the end faces of two ends of the outer ring A (1) in a surrounding mode at intervals of a central hole respectively, a through hole (18) is formed in the central portion of the end cover (4), an annular groove (6) is formed in the inner wall of the through hole (18), a top ring (17) is arranged on the bottom face of the end cover (4), the outer side of the top ring (17) on the end cover (4) surrounds the through hole (18) and is provided with a through hole (15) corresponding to the screw hole (3), a convex ring (9) is arranged in the middle of the outer edge face of the inner ring A (8), the inner ring A (8) is sleeved in the outer ring A (1), the two tapered roller bearings (5) are arranged on two sides of the convex ring (9) between the inner ring A (8) and the outer ring A, The tapered roller bearing comprises inner rings B (11) and tapered rollers (12), an outer ring inner wall B (20) of an outer ring B (13) is one-side expanded neck and one-side reduced neck, a plurality of tapered rollers (12) are limited on the inner ring outer wall B (22) by a retainer (21), the outer ring A (1) is sleeved outside the tapered rollers (12), the two inner rings B (11) are respectively sleeved on two sides of an inner ring A (8), the expanded neck ends of the two inner rings B (11) are respectively contacted with two bottom surfaces of a raised ring (9), two end covers (4) are respectively arranged at two ends of the outer ring A (1), two through holes (18) are respectively sleeved at two ends of the inner ring A (8), two top rings (17) respectively penetrate into the outer ring inner wall A (14) and are abutted against the expanded neck ends of the two outer rings B (13), clamp springs (7) are respectively arranged between annular grooves (6) respectively arranged in the two through holes (18) and the inner ring A (10) of the inner ring A (8), through holes (15) respectively arranged on the two end covers (4) and screw holes (3) respectively arranged on the two ends of the outer ring A (1) are communicated and fastened by bolts (2).

2. The tapered roller composite bearing according to claim 1, wherein: the outer wall of the outer ring A (1) is of a convex cambered surface structure.

3. The tapered roller composite bearing according to claim 2, wherein: and chamfer transition is arranged between the outer wall of the outer ring A (1) and two end faces of the outer ring A (1).

4. The tapered roller composite bearing according to claim 1, wherein: the clamp spring (7) is provided with a joint (19).

5. The tapered roller composite bearing according to claim 1, wherein: the through hole (18) and the inner ring A (8) are in clearance fit.

6. The tapered roller composite bearing according to claim 1, wherein: the two ends of the inner ring outer wall B (22) of the inner ring B (11) are respectively provided with a convex ring, and the retainer (21) limits the plurality of tapered rollers (12) between the convex rings respectively arranged at the two ends of the inner ring outer wall B (22).

7. The tapered roller composite bearing according to claim 1, wherein: one end of the through hole (15) is provided with a flared neck (16), and the head of the bolt (2) is arranged in the flared neck (16).

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