Combined bearing capable of being spliced

Abstract

The utility model relates to the technical field of bearings, and discloses a splicable combined bearing which comprises an outer ring, an oil groove is formed in the outer wall of the outer ring, a plurality of oil inlet holes are formed in the inner wall of the oil groove and used for adding lubricating oil into the bearing, and the upper end and the lower end of the outer ring are connected with a dust cover through clamping assemblies. The inner ring is arranged in the outer ring and used for preventing dust from entering the bearing, annular grooves are formed in the upper side and the lower side of the inner wall of the outer ring correspondingly, annular plates are slidably connected to the inner walls of the annular grooves correspondingly, and the annular plates are connected with the inner ring through connecting assemblies so that the inner ring can rotate on the inner wall of the outer ring. According to the utility model, when the inner ring rotates, the friction force between the inner ring and the connecting body is reduced through the balls, and part of the friction force can drive the whole connecting body to rotate in the outer ring and the connecting body rotates along the direction of the driving source, so that the loss of power in the transmission process is reduced; and dust covers are arranged on the two sides of the bearing to prevent dust from entering the bearing.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a splicable and combinable bearing. Background Art

[0002] A bearing is a mechanical component that supports a mechanical rotating body during the mechanical transmission process, reduces the friction coefficient during its movement, and ensures its rotational accuracy. A bearing usually consists of four parts: an inner ring, an outer ring, rolling elements, and a cage.

[0003] Currently, the main rotation mode of a bearing is that the inner ring rotates inside the outer ring, and between the inner ring and the outer ring, balls or needles are used to change the sliding friction into rolling friction to avoid the loss of the power source. However, the rolling friction still reduces the power during the transmission process.

[0004] In view of the problem that the rolling friction still reduces the power during the transmission process and the friction generated during the rotation of the bearing is not reasonably utilized, this application proposes a splicable and combinable bearing. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a splicable and combinable bearing is proposed. By using balls to reduce the friction between the connecting body, and part of the friction will drive the whole connecting body to rotate inside the outer ring, and the connecting body rotates along the direction of the driving source, thereby reducing the loss of power during the transmission process, and dust covers are arranged on both sides of the bearing to prevent dust from entering the bearing interior.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A splicable and combinable bearing, including an outer ring, an oil groove is opened on the outer wall of the outer ring, and a plurality of oil inlet holes are opened on the inner wall of the oil groove for adding lubricating oil into the bearing interior. Both the upper and lower ends of the outer ring are connected to dust covers through clamping components to prevent dust from entering the bearing interior. Both the upper and lower sides of the inner wall of the outer ring are provided with annular grooves, and annular plates are slidably connected to the inner walls of the annular grooves. The annular plates are connected to the inner ring through connecting components to enable the inner ring to rotate on the inner wall of the outer ring.

[0007] Further, the clamping component includes a plurality of buckles fixedly connected to the opposite ends of the dust cover, and a plurality of clamping grooves are opened at both the upper and lower ends of the outer ring. The shapes of the buckles and the clamping grooves are matched.

[0008] Further, the connecting component includes a plurality of rotating shafts fixedly connected to the opposite ends of the annular plate. Rolling shafts are rotatably connected to the outer walls of the rotating shafts, and the outer sides of the rolling shafts are closely attached to the inner wall of the outer ring.

[0009] Further, one end of the rotating shaft is fixedly connected with a connecting body. An outer arc-shaped groove is formed in the inner wall of the connecting body, an inner arc-shaped groove is formed in the outer wall of the inner ring, and a ball is clamped between the outer arc-shaped groove and the inner arc-shaped groove.

[0010] Further, the balls and the rollers are arranged at equal intervals.

[0011] Further, limiting rings are installed at both upper and lower ends of the inner ring through bolts, and opposite ends of the limiting rings are close to opposite ends of the upper and lower rollers.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the utility model, when the inner ring rotates, the friction between the inner ring and the connecting body is reduced by the balls. Part of the friction will drive the whole connecting body to rotate inside the outer ring, and the connecting body will rotate along the direction of the driving source, thereby reducing the loss of power during transmission.

[0014] 2. In the utility model, dust covers are arranged on both sides of the bearing to prevent dust from entering the bearing and aggravating the wear of the internal parts of the bearing, thereby prolonging the overall service life of the bearing. At the same time, through the oil groove and the oil inlet hole, it is possible to avoid disassembling the bearing and directly adding lubricating oil into the bearing, which greatly improves the portability of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of a splicable and combinable bearing proposed by the utility model;

[0016] Figure 2 is an unfolded view of the dust cover of a splicable and combinable bearing proposed by the utility model;

[0017] Figure 3 is a schematic diagram of the buckle of a splicable and combinable bearing proposed by the utility model;

[0018] Figure 4 is a schematic diagram of the annular plate of a splicable and combinable bearing proposed by the utility model;

[0019] Figure 5 is a schematic diagram of the connecting body of a splicable and combinable bearing proposed by the utility model;

[0020] Figure 6 is an unfolded view of the connecting body and the inner ring of a splicable and combinable bearing proposed by the utility model.

[0021] Legend:

[0022] 1. Outer ring; 2. Dust cover; 3. Snap; 4. Card slot; 5. Oil groove; 6. Oil inlet hole; 7. Annular groove; 8. Annular plate; 9. Rotating shaft; 10. Roller; 11. Ball; 12. Outer arc groove; 13. Inner arc groove; 14. Inner ring; 15. Limit ring; 16. Connecting body. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] Refer to Figures 1 - 3 , an embodiment provided by the present invention: a splicable and combinable bearing, including an outer ring 1, an oil groove 5 is opened on the outer wall of the outer ring 1, and a plurality of oil inlet holes 6 are opened on the inner wall of the oil groove 5 for adding lubricating oil to the inside of the bearing. A plurality of snaps 3 fixedly connected to opposite ends of the dust cover 2, and a plurality of card slots 4 are opened at the upper and lower ends of the outer ring 1. The snaps 3 and the card slots 4 are in a matching shape to prevent dust from entering the inside of the bearing.

[0025] Specifically, the snap 3 on the dust cover 2 is buckled into the card slot 4 on the outer ring 1, so that dust covers 2 are clamped on both sides of the bearing to protect both sides of the bearing and prevent dust from entering. At the same time, lubricating oil is added to the oil groove 5 on the outside of the outer ring 1, and the lubricating oil will enter the inside of the outer ring 1 along the oil inlet holes 6, avoiding the need to disassemble the bearing to add lubricating oil.

[0026] Refer to Figures 4 - 6 , annular grooves 7 are opened on both the upper and lower sides of the inner wall of the outer ring 1, annular plates 8 are slidably connected to the inner walls of the annular grooves 7, a plurality of rotating shafts 9 fixedly connected to opposite ends of the annular plates 8, rollers 10 are rotatably connected to the outer walls of the rotating shafts 9, the outer sides of the rollers 10 are tightly attached to the inner wall of the outer ring 1, a connecting body 16 is fixedly connected to the opposite ends of the rotating shafts 9, an outer arc groove 12 is opened on the inner wall of the connecting body 16, an inner arc groove 13 is opened on the outer wall of the inner ring 14, a ball 11 is clamped between the outer arc groove 12 and the inner arc groove 13, the balls 11 and the rollers 10 are arranged at equal distances, and limit rings 15 are installed at both the upper and lower ends of the inner ring 14 through bolts. The opposite ends of the limit rings 15 are close to the opposite ends of the upper and lower rollers 10 to enable the inner ring 14 to rotate on the inner wall of the outer ring 1.

[0027] Specifically, when assembling the bearing, the outer ring 1 is heated using the principle of thermal expansion and contraction to make it expand and become larger. Then, the annular plate 8 is placed into the outer arc-shaped groove 12 on the inner wall of the outer ring 1. Wait for the outer ring 1 to cool down so that the annular plate 8 can rotate within the annular groove 7, and the outer side of the roller 10 is closely attached to the inner wall of the outer ring 1, while the outer wall of the connecting body 16 does not contact the inner wall of the outer ring 1. In this way, the annular plate 8 and the connecting body 16 are driven to rotate inside the outer ring 1. Then, the inner ring 14 is placed into one side of the connecting body 16, and the balls 11 are placed on the other side inside the connecting body 16, so that the balls 11 are in a horizontal position with the outer arc-shaped groove 12 opened on the inner wall of the connecting body 16 and the inner arc-shaped groove 13 opened on the outer wall of the inner ring 14. Then, the inner ring 14 is squeezed towards the side of the balls 11 to make all the balls 11 return to their positions, thus completing the installation of the inner ring 14. Finally, the limit ring 15 is installed on the upper inner ring 14 through bolts to prevent the inner ring 14 from detaching.

[0028] Working principle: When assembling the bearing, the outer ring 1 is heated to expand and become larger. Then, the annular plate 8 is placed into the outer arc-shaped groove 12 on the inner wall of the outer ring 1. Wait for the outer ring 1 to cool down so that the annular plate 8 fits with the annular groove 7. The annular plate 8 will drive the connecting body 16 into the inside of the outer ring 1, and the outer side of the roller 10 is closely attached to the inner wall of the outer ring 1. In this way, the annular plate 8 and the connecting body 16 are driven to rotate inside the outer ring 1. Then, the inner ring 14 is placed into one side of the connecting body 16, and the balls 11 are placed on the other side inside the connecting body 16, so that the balls 11 are in a horizontal position with the outer arc-shaped groove 12 opened on the inner wall of the connecting body 16 and the inner arc-shaped groove 13 opened on the outer wall of the inner ring 14. Then, the inner ring 14 is squeezed towards the side of the balls 11 to make all the balls 11 return to their positions, thus completing the installation of the inner ring 14. Then, the limit ring 15 is installed on the inner ring 14 through bolts for limiting. Finally, the dust cover 2 is buckled into the card slot 4 on the outer ring 1 through the buckle 3, so that the dust cover 2 protects both sides of the bearing to prevent dust from entering.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A splicable combined bearing, characterized in that: The invention comprises an outer ring (1), the outer wall of the outer ring (1) is provided with an oil groove (5), the inner wall of the oil groove (5) is provided with a plurality of oil inlet holes (6) for adding lubricating oil to the interior of the bearing, the upper and lower ends of the outer ring (1) are connected to a dust cover (2) through a clamping assembly to prevent dust from entering the interior of the bearing, the upper and lower sides of the inner wall of the outer ring (1) are provided with annular grooves (7), the inner walls of the annular grooves (7) are slidably connected with annular plates (8), and the annular plates (8) are connected to the inner ring (14) through a connecting assembly to enable the inner ring (14) to be fixed on the outer ring (14). The inner wall of the ring (1) rotates, the connecting assembly comprises a plurality of rotating shafts (9) fixedly connected to the opposite end of the annular plate (8), the outer walls of the rotating shafts (9) are all rotatably connected to rollers (10), the outer sides of the rollers (10) are all in close contact with the inner wall of the outer ring (1), the opposite end of the rotating shaft (9) is fixedly connected to a connecting body (16), the inner wall of the connecting body (16) is provided with an outer arc groove (12), the outer wall of the inner ring (14) is provided with an inner arc groove (13), and a ball (11) is clamped between the outer arc groove (12) and the inner arc groove (13).

2. The splicable combined bearing according to claim 1, characterized in that: The snap-fit ​​assembly comprises a plurality of snaps (3) fixedly connected to the opposite end of the dust cover (2); a plurality of slots (4) are provided at the upper and lower ends of the outer ring (1); and the shapes of the snaps (3) and the slots (4) match each other.

3. The splicable combined bearing according to claim 1, characterized in that: The balls (11) and the rollers (10) are arranged at equal distances.

4. The splicable combined bearing according to claim 1, characterized in that: Limiting rings (15) are installed at both upper and lower ends of the inner ring (14) by means of bolts, and one opposite end of the limiting ring (15) is close to the opposite ends of the rollers (10) at the upper and lower sides.

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