Roller bearing

Abstract

The utility model discloses a roller bearing, which belongs to the technical field of bearings and comprises an inner ring sleeved with a roller mechanism, a detachable outer ring sleeved outside the roller mechanism, and side cover plates covered on two sides of the detachable outer ring and internally provided with an axial ball frame, a plurality of ball units are arranged in the inner ring in a rolling mode, an inner ring groove is formed in the outer wall of the inner ring, the side cover plate comprises a cover plate body, an outer ring groove is formed in the inner wall of the side cover plate, and the ball units are clamped in the inner ring groove and the outer ring groove in the two sides. According to the technical scheme, when the inner ring bears the axial load of the connecting shaft, the axial ball frame can transmit the axial force to the side cover plate, so that the overall axial force bearing capacity of the bearing is greatly improved, in addition, the axial ball frame is in rolling contact with the inner ring and the side cover plate through the ball units in the axial ball frame, and therefore the excessive friction effect is not generated.

Description

TECHNICAL FIELD

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

[0002] Roller bearing is mainly composed of inner ring, outer ring, rolling element and retainer, and the inner ring and outer ring are usually made of high-carbon steel, and the surface is quenched to improve hardness and wear resistance. The rolling element is the core component in the bearing, which reduces friction by rolling between the inner ring and the outer ring, supports the shaft, and the retainer is used to maintain the spacing between the rolling elements to avoid mutual contact and collision. The rolling element of the roller bearing is cylindrical, conical or drum-shaped.

[0003] The utility model discloses a kind of roller bearings, and the roller bearing is fixedly provided with fixed hole in the front end of bearing inner ring, when installing bearing, by fixed hole, it can be more firm, the outside of fixed hole is half-embedded structure, so that when installing, it can be more quickly and conveniently installed, and the fixed communication of fixed hole and the inner ring movable slot of bearing inner ring outside is fixed, when it needs to be injected with lubricating oil inside, it can be more conveniently operated, and the fixed connection portion can be lubricated to avoid rusting of connection part for long-term connection to facilitate disassembly.

[0004] In the above structure, the bearing outer ring and the bearing inner ring are connected by a steel ball to reduce friction, but the axial load capacity of the above connection form is weak. When the bearing bears a large axial force, the connection between the bearing outer ring, the bearing inner ring and the steel ball may shake, affecting normal use. Even when the axial force is large, the connection between the three may fail, causing the bearing to disintegrate. Therefore, a roller bearing is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to provide a roller bearing. The bearing realizes the rotational connection between the inner ring and the detachable outer ring through a roller mechanism to realize the basic function of the bearing. To enhance the axial load capacity, side cover plates are provided on both sides of the detachable outer ring, and an axial ball cage is clamped between the inner ring and the side cover plates. When the inner ring bears the axial load of the connecting shaft, the axial ball cage can transmit the axial force to the side cover plates, thereby greatly improving the axial load capacity of the entire bearing. In addition, the axial ball cage is in rolling contact with the inner ring and the side cover plates through the ball units inside, so there is no excessive friction. The utility model solves the technical problem that the roller bearing lacks measures to enhance the axial load capacity, which causes it to be easily affected by a large axial load during use and unable to function normally.

[0006] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0007] The application discloses a kind of roller bearings, including inner ring, its outside is equipped with roller mechanism, detachable outer ring is equipped with in roller mechanism outside, side cover plate is equipped with in both sides of detachable outer ring, and its inside is equipped with axial ball holder, wherein, the axial ball holder includes positioning ring holder, several ball units are arranged in the inside, the inner wall of the inner ring is provided with inner ring groove, the side cover plate includes cover plate body, the inner wall of the cover plate body is provided with outer ring groove, the ball unit is clamped in the inner ring groove and the outer ring groove on both sides, when inner ring bears the axial load of connecting shaft, axial ball holder can pass through ball unit in its inside and inner ring, side cover plate rolling contact, so excessive friction does not occur.

[0008] In a possible implementation, the positioning ring holder is provided with a plurality of positioning holes, the positioning holes can position the ball units to prevent them from colliding with each other, the positioning holes have a size corresponding to that of the ball units, and the large ends of the positioning holes are open toward the inside, the opening form can temporarily position the ball units when the ball units are installed, and facilitates positioning and installation of the ball units.

[0009] In a possible implementation, the roller mechanism includes two symmetrically arranged roller ring holders provided with mounting holes, the roller ring holders are provided with roller units therebetween, and the roller units are fixedly connected with positioning shafts, wherein the positioning shafts are rotationally connected with the mounting holes, and the above structure can position and install the roller units.

[0010] In a possible implementation, the detachable outer ring includes two symmetrically arranged half rings provided with contact rings on the inner walls, the contact rings are provided with grooves corresponding to the sizes of the roller units in the inner walls, and the inner wall of the inner ring is provided with grooves corresponding to the sizes of the roller units, in the above structure, the clamping action between the roller units and the grooves can limit the positions of the roller units to prevent the roller units from being separated from the detachable outer ring and the inner ring, in addition, the inner wall of the half ring is provided with a clamping groove, and the outer wall of the contact ring is fixedly provided with a clamping ring clamped in the clamping groove, and the above structure can detachably connect the contact ring and the half ring, and the contact ring can be individually replaced when it is seriously worn.

[0011] In a possible implementation, the inner wall of the cover plate body is fixedly provided with two sealing rings located on both sides of the axial ball holder, and the end of each sealing ring is fixedly provided with a rubber ring ring abutting against the inner ring, and the above structure can form a protective measure by the combination of the sealing rings and the rubber ring rings to prevent external dust and foreign matters from entering the inside of the bearing through the contact gap.

[0012] In a possible implementation, the two half-rings are fixedly provided with connecting ears at both ends, and the two half-rings are fixedly connected through the threaded connection of the outer ring and the connecting ears.

[0013] In a possible implementation, the inner wall of one of the roller ring frames is fixedly provided with a plurality of insertion shafts, and the inner wall of the other roller ring frame is fixedly provided with a plurality of insertion sleeves, wherein the insertion shafts and the insertion sleeves are insertionally connected, and the above structure can realize detachable connection between the roller ring frames, and after the roller units are installed on one side, the positioning and installation of all the roller units can be completed by covering the other roller ring frame.

[0014] In a possible implementation, the edge of the cover plate body is fixedly provided with a connecting ring, and the connecting ring is fixedly connected with the detachable outer ring through a fixing bolt, and the above structure can realize the fixed connection between the side cover plate and the detachable outer ring.

[0015] In summary, the utility model has the following beneficial technical effects:

[0016] The bearing is rotatably connected between the inner ring and the detachable outer ring through a roller mechanism to realize the basic function of the bearing, and in order to enhance the axial load capacity, the side cover plates are arranged on both sides of the detachable outer ring, and the axial ball cage is arranged between the inner ring and the side cover plates, so that when the inner ring bears the axial load of the connecting shaft, the axial ball cage can transmit the axial force to the side cover plates, thereby greatly improving the axial load capacity of the bearing as a whole; in addition, the axial ball cage is in rolling contact with the inner ring and the side cover plates through the ball units in the axial ball cage, so that excessive friction is not generated. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model. In the drawings:

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a structure schematic view of the utility model;

[0020] Figure 3 It is a whole structure sectional view of the utility model;

[0021] Figure 4 It is a local structure sectional view of the utility model;

[0022] Figure 5 It is a roller mechanism structure schematic view of the utility model;

[0023] Figure 6 The axial ball cage structure schematic diagram of the utility model.

[0024] In the figure: 1, inner ring; 11, inner ring groove; 2, roller mechanism; 21, roller ring holder; 22, mounting hole; 23, roller unit; 24, positioning shaft; 25, plug-in shaft; 26, plug-in barrel; 3, detachable outer ring; 31, half ring; 32, contact ring; 33, clamping groove; 34, clamping ring; 35, connecting lug; 36, outer ring bolt; 4, axial ball cage; 41, positioning ring holder; 42, ball unit; 43, positioning hole; 5, side cover plate; 51, cover plate body; 52, outer ring groove; 53, closed ring; 54, rubber ring; 55, connecting ring; 56, fixing bolt. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the present application is to solve the problems in the above background art, and the general idea is as follows:

[0026] As shown in Figure 1 - Figure 3 The present embodiment provides a roller bearing, which comprises an inner ring 1, an outer roller mechanism 2 is arranged on the outer side of the inner ring 1, a detachable outer ring 3 is arranged on the outer side of the roller mechanism 2, and a side cover plate 5 is arranged on both sides of the detachable outer ring 3, and the inner side of the side cover plate 5 is provided with an axial ball cage 4. The axial ball cage 4 comprises a positioning ring holder 41, and a plurality of ball units 42 are arranged in the positioning ring holder 41. An inner ring groove 11 is formed in the outer wall of the inner ring 1. The side cover plate 5 comprises a cover plate body 51, and an outer ring groove 52 is formed in the inner wall of the cover plate body 51. The ball units 42 are clamped in the inner ring groove 11 and the outer ring groove 52 on both sides. When the inner ring 1 bears the axial load of the connecting shaft, the axial ball cage 4 can transmit the axial force to the side cover plate 5, thereby greatly improving the axial force bearing capacity of the whole bearing. In addition, the axial ball cage 4 is in rolling contact with the inner ring 1 and the side cover plate 5 through the ball units 42 in the axial ball cage 4, so that excessive friction is not generated.

[0027] As shown in Figure 6 A plurality of positioning holes 43 are formed in the positioning ring holder 41. The positioning holes 43 can position the ball units 42 and prevent the ball units 42 from colliding with each other. The size of the positioning holes 43 is consistent with the size of the ball units 42. The large end opening of the positioning holes 43 faces the inner side. This kind of opening form can temporarily position the ball units 42 when the ball units 42 are installed, thereby facilitating the positioning and installation of the ball units 42.

[0028] As shown in Figure 5As shown, the roller mechanism 2 includes two symmetrically arranged roller ring frames 21, which are provided with mounting holes 22, and a roller unit 23 is arranged between the roller ring frames 21, and the two ends of the roller unit 23 are fixedly connected with positioning shafts 24, wherein the positioning shafts 24 are rotatably connected with the mounting holes 22, and the above structure can realize positioning and installation of the roller unit 23; a plurality of plug-in shafts 25 are fixedly arranged on the inner wall of one of the roller ring frames 21, and a plurality of plug-in sleeves 26 are fixedly arranged on the inner wall of the other roller ring frame 21, wherein the plug-in shafts 25 are plug-in connected with the plug-in sleeves 26, and the above structure can realize detachable connection between the roller ring frames 21, and after the roller unit 23 is installed on one side, the positioning and installation of all the roller units 23 can be completed by covering the other roller ring frame 21.

[0029] As shown in Figure 1 , Figure 4 As shown, the detachable outer ring 3 includes two symmetrically arranged half rings 31, and the inner wall of the half ring 31 is provided with a contact ring 32, and the inner wall of the contact ring 32 is provided with a groove matched with the size of the roller unit 23, and the outer wall of the inner ring 1 is provided with a groove matched with the size of the roller unit 23, and in the above structure, the clamping effect between the roller unit 23 and the groove can play a limiting role, so that the roller unit 23 is prevented from being separated from the detachable outer ring 3 and the inner ring 1, in addition, the inner wall of the half ring 31 is provided with a clamping groove 33, the outer wall of the contact ring 32 is fixedly provided with a clamping ring 34, and the clamping ring 34 is clamped in the clamping groove 33, and the above structure can realize detachable connection between the contact ring 32 and the half ring 31, and the contact ring 32 can be replaced alone when it is seriously worn; in addition, the two ends of the half ring 31 are fixedly provided with connecting ears 35, and the two half rings 31 are fixedly connected through the outer ring bolt 36 and the connecting ear 35 in a threaded connection manner, and the above structure can realize fixed connection between the two half rings 31.

[0030] As shown in Figure 3 As shown, the inner wall of the cover plate body 51 is fixedly provided with two closed rings 53 located on both sides of the axial ball bearing 4, and the end of the closed ring 53 is fixedly provided with a rubber ring 54 abutting against the inner ring 1, and the above structure can form a protection measure by the combined action of the closed ring 53 and the rubber ring 54, so as to prevent external dust and foreign matters from entering the bearing through the contact gap.

[0031] As shown in Figure 2 As shown, the edge of the cover plate body 51 is fixedly provided with a connecting ring 55, which is fixedly connected with the detachable outer ring 3 through a fixing bolt 56, and the above structure can realize fixed connection between the side cover plate 5 and the detachable outer ring 3.

[0032] The use principle and use process of the utility model are as follows:

[0033] The bearing realizes the rotary connection between the inner ring 1 and the detachable outer ring 3 by the roller mechanism 2 to realize the basic function of the bearing, and side cover plates 5 are arranged on both sides of the detachable outer ring 3 to enhance the axial load capacity of the bearing, and an axial ball cage 4 is arranged between the inner ring 1 and the side cover plate 5, so that when the inner ring 1 bears the axial load of the connecting shaft, the axial ball cage 4 can transmit the axial force to the side cover plate 5, thereby greatly improving the axial force bearing capacity of the bearing as a whole; in addition, the axial ball cage 4 is in rolling contact with the inner ring 1 and the side cover plate 5 through the internal ball unit 42, so that excessive friction is not generated.

[0034] The roller mechanism 2 comprises two symmetrically arranged roller ring frames 21, mounting holes 22 are formed in the roller ring frames 21, a roller unit 23 is arranged between the roller ring frames 21, and positioning shafts 24 are fixedly connected to both ends of the roller unit 23, wherein the positioning shafts 24 are in rotary connection with the mounting holes 22, and the above structure can realize the positioning and installation of the roller unit 23; a plurality of plug-in shafts 25 are fixedly arranged on the inner wall of one of the roller ring frames 21, and a plurality of plug-in sleeves 26 are fixedly arranged on the inner wall of the other roller ring frame 21, wherein the plug-in shafts 25 are in plug-in connection with the plug-in sleeves 26, and the above structure can realize the detachable connection between the roller ring frames 21; after the roller unit 23 is installed on one side, the other roller ring frame 21 is closed to complete the positioning and installation of all the roller units 23.

[0035] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the present application, and are not limitations of the embodiments. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A roller bearing, characterized by, The utility model relates to a kind of detachable roller bearing, including: Inner ring (1), its outside is equipped with roller mechanism (2); Detachable outer ring (3), it is equipped outside roller mechanism (2); Side cover plate (5), it is equipped on both sides of detachable outer ring (3), and its inside is equipped with axial ball holder (4); Wherein, the axial ball holder (4) includes positioning ring holder (41), several ball units (42) are arranged inside, the inner wall of the inner ring (1) is provided with inner ring groove (11), the side cover plate (5) includes cover plate body (51), the inner wall of which is provided with outer ring groove (52), the ball unit (42) is clamped in the inner ring groove (11) and outer ring groove (52) on both sides.

2. A roller bearing according to claim 1, characterised in that: Several positioning holes (43) are provided on the positioning ring holder (41), which are consistent with the size of the ball unit (42), and the large end opening of the positioning hole (43) faces the inside.

3. A roller bearing according to claim 1, wherein: The roller mechanism (2) includes two symmetrically arranged roller ring holders (21), which are provided with mounting holes (22), and the roller ring holder (21) is provided with a roller unit (23) therebetween, and the two ends of the roller unit (23) are fixedly connected with positioning shafts (24), wherein the positioning shafts (24) are rotatably connected with the mounting holes (22).

4. A roller bearing according to claim 1, characterized in that: The detachable outer ring (3) includes two symmetrically arranged half rings (31), which are provided with contact rings (32) on the inner wall, the inner wall of the contact ring (32) is provided with a groove consistent with the size of the roller unit (23), and the outer wall of the inner ring (1) is provided with a groove consistent with the size of the roller unit (23). In addition, the inner wall of the half ring (31) is provided with a clamping groove (33), and the outer wall of the contact ring (32) is fixedly provided with a clamping ring (34), which is clamped in the clamping groove (33).

5. A roller bearing according to claim 1, wherein: The inner wall of the cover plate body (51) is fixedly provided with two sealing rings (53) on both sides of the axial ball holder (4), and the end of the sealing ring (53) is fixedly provided with a rubber ring (54) abutting against the inner ring (1).

6. A roller bearing according to claim 4, wherein: The two ends of the half ring (31) are fixedly provided with connecting ears (35), and the two half rings (31) are fixedly connected by the threaded connection of the outer ring bolt (36) and the connecting ear (35).

7. A roller bearing according to claim 3, wherein: The inner wall of one of the roller ring holders (21) is fixedly provided with several plug-in shafts (25), and the inner wall of the other roller ring holder (21) is fixedly provided with several plug-in sleeves (26), wherein the plug-in shaft (25) is plug-in connected with the plug-in sleeve (26).

8. A roller bearing according to claim 1, characterized in that: The edge of the cover plate body (51) is fixedly provided with a connecting ring (55), which is fixedly connected with the detachable outer ring (3) by the fixing bolt (56).

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