Cross tapered roller bearing

Abstract

The utility model discloses a crossed tapered roller bearing, which relates to the technical field of bearings and comprises an inner ring, a plurality of groups of inner mounting holes are formed in the inner ring, an outer ring is sleeved outside the inner ring, a plurality of groups of tapered rollers are arranged in a retainer in a crossed manner, and a plurality of groups of inner mounting holes are formed in the outer ring. An assembly type inner diameter adjusting assembly facilitating inner diameter adjustment is arranged in the inner ring. According to the crossed tapered roller bearing, the upper annular groove, the upper positioning ring, the inner diameter ring and the preformed hole are arranged, when the crossed tapered roller bearing is used, the inner diameter ring is screwed in along the opening of the inner ring until the upper positioning ring is completely pressed into the upper annular groove, the preformed hole is aligned with the inner mounting hole, and a bolt can be screwed in for further position limitation; the upper positioning ring and the inner diameter ring are assembly type modular components, the corresponding sizes can be flexibly selected for replacement according to needs, the function of adjusting the inner diameter of the assembly type component is achieved, and the problem that the device does not have the function of adjusting the inner diameter of the assembly type component is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, concretely is a kind of cross conical roller bearing. BACKGROUND

[0002] Cross conical roller bearing is a kind of high-precision bearing, it can provide higher rotation accuracy and rigidity in smaller space, while it is greatly saved material, and the roller in its interior is conical roller and is cross distribution.

[0003] The cross conical roller bearing commonly seen in current market is mostly similar in overall structure, is divided into inner ring, outer ring, retainer and conical roller, there is some deficiency in actual use process in function, and it has certain improvement space, such as interference fit between bearing and shaft, and the inner diameter of bearing is fixed, so the shaft rod that it is adapted is also limited, cannot be adjusted according to the actual specification of shaft rod, does not have the function of adjusting the inner diameter of assembly type component.

[0004] Now, a new type of cross conical roller bearing is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model is to provide a kind of cross conical roller bearing to solve the problem of not having the function of adjusting the inner diameter of assembly type component in the background technique described above.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of cross conical roller bearing, including inner ring, the inside of the inner ring ring is provided with multiple groups of inner installation hole, the middle position of the outer side of the inner ring ring is provided with inner raceway, the outside of the inner ring ring is sleeved with outer ring, the middle position of the inner side of the outer ring is provided with outer raceway, the inner raceway, outer raceway between horizontal placement has retainer, the inside of the retainer is cross provided with multiple groups of conical roller, the inside of the outer ring is provided with multiple groups of outer installation hole, the inside of the inner ring ring is provided with the assembly type inner diameter adjusting assembly facilitating adjustment inner diameter.

[0007] The assembly type inner diameter adjusting assembly includes inner diameter ring, the inner diameter ring is arranged in the inside of inner ring, the top of the inner diameter ring is welded with upper positioning ring, the inside of the upper positioning ring is provided with multiple groups of reserved hole, the top of the inner ring ring is provided with upper annular groove.

[0008] As a further technical scheme of the utility model, the shape size of the inside of the upper annular groove and the shape size of the outside of the upper positioning ring are matched, and the top of the inner ring ring and the upper positioning ring is flush.

[0009] As a further technical scheme of the utility model, the outer diameter of the inner diameter ring and the inner diameter of the inner ring ring are matched, and the inner ring ring and the inner diameter ring are screw-threaded.

[0010] As a further technical scheme of the utility model, the position size number of the inner mounting hole and the reserved hole are one-to-one correspondence, the inner mounting hole and the reserved hole are arranged at equal intervals.

[0011] As a further technical scheme of the utility model, the both sides of the top of the outer ring are vertically provided with internal thread oil channels, the top of the internal thread oil channel is provided with a counterbore, and the internal thread oil channel is internally inserted with a sealing bolt from top to bottom.

[0012] As a further technical scheme of the utility model, the internal thread oil channel and the outer raceway are connected, and the top of the outer ring and the counterbore are flush.

[0013] As a further technical scheme of the utility model, the upper and lower ends of the inner side of the outer ring are respectively glued with concave outer sealing rings, the upper and lower ends of the internal thread oil channel are respectively provided with a plurality of annular sealing grooves, the upper and lower ends of the outer side of the inner ring are respectively glued with convex inner sealing rings, and the upper and lower ends of the convex inner sealing ring are respectively provided with a plurality of annular sealing edges.

[0014] As a further technical scheme of the utility model, the position size number of the annular sealing groove and the annular sealing edge are one-to-one correspondence, and the concave outer sealing ring and the convex inner sealing ring are elastic.

[0015] Compared with the prior art, the utility model has the advantages that the cross-cone roller bearing not only realizes the function of adjusting the inner diameter of the assembled part, but also realizes the function of facilitating oil injection lubrication and the function of multi-level sealing and dust prevention.

[0016] (1) by setting up the annular groove, the upper positioning ring, the inner diameter ring and the reserved hole, when using, the inner ring and the outer ring are used as the main body of the bearing, a plurality of cross-cone rollers are arranged between the two, when the inner diameter ring is connected with the shaft, according to the outer diameter of the shaft, when the two need to be adjusted, the inner diameter ring is screwed into the opening of the inner ring until the upper positioning ring is completely pressed into the annular groove, the reserved hole and the inner mounting hole are aligned, and the bolt can be screwed in for further position limitation, the upper positioning ring and the inner diameter ring are modular components, and the corresponding size can be replaced flexibly according to the requirement, so that the function of adjusting the inner diameter of the assembled part is realized.

[0017] (2) by setting up the internal thread oil channel, the counterbore and the sealing bolt, when using, the sealing bolt is unscrewed and pulled out when the cross-cone roller is lubricated, and then the lubricating oil can be continuously injected into the outer raceway through the internal thread oil channel, the counterbore reserves space for the sinking of the sealing bolt, so that the function of facilitating oil injection lubrication is realized.

[0018] (3) through the setting has the concave outer sealing ring, annular sealing groove, convex inner sealing ring and annular sealing edge, when using, the concave outer sealing ring and the convex inner sealing ring mutually engage and form double sealing ring, the upper and lower annular sealing edge of the convex inner sealing ring and the annular sealing groove in the concave outer sealing ring correspond one to one, further increase the sealing, realize the function of multilayer sealing dustproof. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view sectional structure schematic diagram of the utility model;

[0020] Figure 2 It is the front view sectional structure schematic diagram of the utility model;

[0021] Figure 3 It is the Figure 1 It is the sectional view enlarged structure schematic diagram of A place in the utility model;

[0022] Figure 4 It is the inner diameter ring bottom view structure schematic diagram of the utility model.

[0023] In the drawing: 1, inner ring; 2, inner mounting hole; 3, inner raceway; 4, retainer; 5, conical roller; 6, outer ring; 7, outer raceway; 8, outer mounting hole; 9, upper annular groove; 10, upper positioning ring; 11, inner diameter ring; 12, reserved hole; 13, inner thread oil channel; 14, countersunk hole; 15, sealing bolt; 16, concave outer sealing ring; 17, annular sealing groove; 18, convex inner sealing ring; 19, annular sealing edge. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Embodiment: please refer to Figures 1-4 A cross conical roller bearing, including inner ring 1, the inside of inner ring 1 is provided with multiple inner mounting holes 2, the middle position of the outer side of inner ring 1 is provided with inner raceway 3, the outside of inner ring 1 is sleeved with outer ring 6, the middle position of the inner side of outer ring 6 is provided with outer raceway 7, the horizontal placement between inner raceway 3, outer raceway 7 has retainer 4, multiple conical rollers 5 are arranged in the inside of retainer 4, the inside of outer ring 6 is provided with multiple outer mounting holes 8, the inside of inner ring 1 is provided with assembly type inner diameter adjusting assembly for adjusting inner diameter;

[0026] Please refer toFigures 1-4 The cross taper roller bearing further comprises an assembled inner diameter adjusting assembly, the assembled inner diameter adjusting assembly comprises an inner diameter ring 11 arranged inside the inner ring 1, and a top end of the inner diameter ring 11 is welded with an upper positioning ring 10, and an inside of the upper positioning ring 10 is provided with a plurality of reserved holes 12, and a top end of the inner ring 1 is provided with an upper annular groove 9;

[0027] The shape and size of the inside of the upper annular groove 9 are matched with the shape and size of the outside of the upper positioning ring 10, the top ends of the inner ring 1 and the upper positioning ring 10 are flush, the outer diameter of the inner diameter ring 11 is matched with the inner diameter of the inner ring 1, the inner ring 1 and the inner diameter ring 11 are threadedly connected, the positions and sizes of the inner mounting holes 2 and the reserved holes 12 are one-to-one corresponding, the inner mounting holes 2 and the reserved holes 12 are arranged at equal intervals, and the bearing inner diameter is conveniently adjusted;

[0028] Specifically, as shown in Figure 1 , Figure 2 and Figure 4 , the inner diameter ring 11 is screwed along the opening of the inner ring 1 until the upper positioning ring 10 is completely pressed into the upper annular groove 9, the reserved holes 12 and the inner mounting holes 2 are aligned, a bolt can be driven in for further position limitation, and the upper positioning ring 10 and the inner diameter ring 11 are modular components in an assembled mode, which can be replaced with corresponding sizes as needed.

[0029] The outer ring 6 is vertically provided with inner threaded oil channels 13 on both sides of the top, the top end of the inner threaded oil channel 13 is provided with a countersunk hole 14, the inside of the inner threaded oil channel 13 is inserted from top to bottom with a sealing bolt 15, the inside of the outer raceway 7 and the inner threaded oil channel 13 are connected, the top ends of the outer ring 6 and the countersunk hole 14 are flush, and oil injection and lubrication are facilitated;

[0030] Specifically, as shown in Figure 1 and Figure 3 , the sealing bolt 15 is loosened and withdrawn, and lubricating oil can be continuously injected into the inside of the outer raceway 7 along the inner threaded oil channel 13, and the countersunk hole 14 reserves space for the sinking of the sealing bolt 15.

[0031] The concave outer sealing ring 16 is glued to the upper and lower ends of the inner side surface of the outer ring 6, the concave outer sealing ring 16 is provided with a plurality of annular sealing grooves 17 at the upper and lower ends inside, the convex inner sealing ring 18 is glued to the upper and lower ends of the outer side surface of the inner ring 1, the convex inner sealing ring 18 is provided with a plurality of annular sealing edges 19 at the upper and lower ends, the positions and sizes of the annular sealing grooves 17 and the annular sealing edges 19 are one-to-one corresponding, and the concave outer sealing ring 16 and the convex inner sealing ring 18 are elastic to increase the sealing performance;

[0032] Specifically, as shown in Figure 1 and Figure 3As shown, the annular sealing edges 19 on the convex inner sealing ring 18 correspond to the annular sealing grooves 17 in the concave outer sealing ring 16, further increasing the sealing performance.

[0033] Working principle: when the utility model is used, firstly, the inner ring 1 and the outer ring 6 are the main body of the bearing, and a plurality of groups of conical rollers 5 are arranged between the inner ring 1 and the outer ring 6, when the inner ring 1 is connected with the shaft, according to the outer diameter of the shaft, when the inner ring 1 and the outer ring 6 need to be adjusted, the inner diameter ring 11 is screwed along the opening of the inner ring 1, until the upper positioning ring 10 is completely pressed into the upper annular groove 9, the reserved hole 12 and the inner mounting hole 2 are aligned, and the bolt can be hit to further limit the position, the upper positioning ring 10 and the inner diameter ring 11 are modular components, and the corresponding size can be replaced flexibly according to the requirement. When the conical roller 5 is lubricated and maintained, the sealing bolt 15 is unscrewed and extracted, and then the lubricating oil can be continuously injected into the outer raceway 7 inside along the internal thread oil channel 13, and the countersunk hole 14 reserves space for the sinking of the sealing bolt 15. The concave outer sealing ring 16 and the convex inner sealing ring 18 are engaged to form double sealing rings, the annular sealing edges 19 on the convex inner sealing ring 18 correspond to the annular sealing grooves 17 in the concave outer sealing ring 16, further increasing the sealing performance.

[0034] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A crossed cone roller bearing comprising an inner ring (1), characterized in that: The inner circle ring (1) is internally provided with a plurality of inner mounting holes (2), the middle position of the outer side surface of the inner circle ring (1) is provided with an inner raceway (3), the outer circle ring (6) is sleeved on the outer side of the inner circle ring (1), the middle position of the inner side surface of the outer circle ring (6) is provided with an outer raceway (7), the retaining ring (4) is horizontally arranged between the inner raceway (3) and the outer raceway (7), a plurality of conical rollers (5) are cross arranged in the inner part of the retaining ring (4), a plurality of outer mounting holes (8) are arranged in the inner part of the outer circle ring (6), and the inner circle ring (1) is provided with an assembled inner diameter adjusting assembly for conveniently adjusting the inner diameter. The assembled inner diameter adjusting assembly comprises an inner diameter ring (11), the inner diameter ring (11) is arranged in the inner part of the inner circle ring (1), the top end of the inner diameter ring (11) is welded with an upper positioning ring (10), a plurality of reserved holes (12) are arranged in the inner part of the upper positioning ring (10), and the top end of the inner circle ring (1) is provided with an upper annular groove (9).

2. A crossed tapered roller bearing according to claim 1, characterized in that: The shape and size of the inner part of the upper annular groove (9) are matched with the shape and size of the outer part of the upper positioning ring (10), and the top ends of the inner circle ring (1) and the upper positioning ring (10) are flush.

3. A crossed tapered roller bearing according to claim 1, characterized in that: The outer diameter of the inner diameter ring (11) is matched with the inner diameter of the inner circle ring (1), and the inner circle ring (1) and the inner diameter ring (11) are screw-connected.

4. A crossed tapered roller bearing according to claim 1, characterized in that: The position, size and number of the inner mounting hole (2) and the reserved hole (12) are one-to-one corresponding, and the inner mounting hole (2) and the reserved hole (12) are arranged at equal intervals.

5. A crossed tapered roller bearing according to claim 1, characterized in that: The inner thread oil channel (13) is vertically arranged on both sides of the top of the outer circle ring (6), the top end of the inner thread oil channel (13) is provided with a countersunk hole (14), and the sealing bolt (15) is inserted into the inner thread oil channel (13) from top to bottom.

6. A crossed tapered roller bearing according to claim 5, characterized in that: The inner parts of the outer raceway (7) and the inner thread oil channel (13) are communicated, and the top ends of the outer circle ring (6) and the countersunk hole (14) are flush.

7. A crossed tapered roller bearing according to claim 1, characterized in that: The recessed outer sealing ring (16) is glued to the upper and lower ends of the inner side surface of the outer circle ring (6), a plurality of annular sealing grooves (17) are arranged at the upper and lower ends of the inner part of the recessed outer sealing ring (16), the convex inner sealing ring (18) is glued to the upper and lower ends of the outer side surface of the inner circle ring (1), and a plurality of annular sealing ribs (19) are arranged at the upper and lower ends of the convex inner sealing ring (18).

8. A crossed tapered roller bearing according to claim 7, characterized in that: The position, size and number of the annular sealing groove (17) and the annular sealing rib (19) are one-to-one corresponding, and the recessed outer sealing ring (16) and the convex inner sealing ring (18) are elastic.

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