Connecting bearing convenient for adding lubricating oil for sweeping robot

Abstract

The utility model discloses a connecting bearing convenient to add lubricating oil for a sweeping robot, and relates to the field of bearings, the connecting bearing comprises an outer ring, a threaded hole is formed in the outer ring, a clamping ring is installed on the outer wall of the outer ring, a through hole is formed in the clamping ring, a bolt is installed in the through hole, and the threaded hole is communicated with the threaded hole. The ball is placed between the outer ring and the inner ring, the clamping ring is moved and is in butt joint with the outer wall of the outer ring, the bolt penetrates through the through hole and is in butt joint with one end of the inner wall of the threaded hole, the bolt is rotated, the clamping ring can be installed on the outer wall of the outer ring, the ball is blocked, abrasion generated during bearing installation is reduced, and the service life of the bearing is prolonged. The service life of the connecting bearing of the sweeping robot is prolonged, lubricating oil is injected into the oil injection hole and flows into the bearing, an oil storage groove is formed in the inner side wall of the oil injection hole, some lubricating oil can be accumulated in the oil storage groove and slowly falls down along with rotation of the bearing, and the effect of conveniently adding the lubricating oil into the bearing is achieved.

Description

Technical Field

[0001] The utility model relates to the field of bearings, in particular to a connecting bearing for a floor sweeping robot which is convenient for adding lubricating oil. Background Technique

[0002] A bearing is an important component in contemporary mechanical equipment. Generally, a bearing consists of four parts: an inner ring, an outer ring, rolling elements and a cage. The function of the inner ring is to cooperate with the shaft and rotate together with the shaft. The function of the outer ring is to cooperate with the bearing housing to play a supporting role. The rolling elements are evenly distributed between the inner ring and the outer ring by means of the cage. Their shape, size and quantity directly affect the service performance and life of the rolling bearing. When a floor sweeping robot is produced, a connecting bearing will also be installed inside. At present, the bearing is often assembled by pressing the rolling elements into the space between the inner ring and the outer ring and then making the inner and outer rings snap together by hard pressing. However, the connecting bearing required inside the floor sweeping robot is relatively precise, and this assembly method will cause wear to the bearing, thus affecting the service life of the connecting bearing. Therefore, a connecting bearing for a floor sweeping robot which is convenient for adding lubricating oil is needed.

[0003] For the existing connecting bearing, during use, it is inconvenient to assemble the inner ring, outer ring and rolling elements, and it is also inconvenient to add lubricating oil to the connecting bearing. At the same time, the wear resistance of the inner ring of the current bearing is not good. Therefore, a connecting bearing for a floor sweeping robot which is convenient for adding lubricating oil is urgently needed. Content of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide a connecting bearing for a floor sweeping robot which is convenient for adding lubricating oil, so as to solve the problems that the existing connecting bearing is inconvenient to assemble the inner ring, outer ring and rolling elements, inconvenient to add lubricating oil to the connecting bearing and the wear resistance of the inner ring is not good.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A connecting bearing for a floor sweeping robot which is convenient for adding lubricating oil, including an outer ring, a threaded hole is opened inside the outer ring, a snap ring is installed on the outer wall of the outer ring, a through hole is opened inside the snap ring, and a bolt is installed inside the through hole.

[0006] An oil injection hole is opened at the top of the outer ring, and an oil storage groove is opened on the inner side wall of the oil injection hole.

[0007] The inner wall of the outer ring is movably connected with ball bearings, the outer wall of the ball bearings is movably connected with an inner ring, and a wear-resistant coating is fixedly connected to the outer wall of the inner ring.

[0008] Preferably, the bolt is threadedly connected with the outer ring through the threaded hole, and the bolt is adapted to the threaded hole.

[0009] Preferably, the threaded holes are evenly distributed along the outer wall of the outer ring, and the through holes are evenly distributed along the outer wall of the snap ring.

[0010] Preferably, the oil injection holes are symmetrically arranged with respect to the central axis of the outer ring, and the oil storage grooves are symmetrically arranged with respect to the central axis of the oil injection holes.

[0011] Preferably, the balls are embedded and installed between the outer ring and the inner ring, and the outer ring and the inner ring form a rotating structure through the balls.

[0012] Preferably, the material of the inner ring is carbon steel, and the material of the wear-resistant coating is a polymer coating.

[0013] Preferably, the inner ring and the wear-resistant coating are closely fitted, and the inner ring is in contact with the balls.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By providing the outer ring, threaded holes, snap ring, through holes, bolts, balls and inner ring, the balls are placed between the outer ring and the inner ring, the snap ring is moved and docked to the outer wall of the outer ring, the bolts are passed through the through holes and docked to one end of the inner wall of the threaded holes, and by rotating the bolts, the snap ring can be installed on the outer wall of the outer ring and the balls can be blocked, which facilitates the assembly of the connecting bearing, reduces the wear generated during the installation of the bearing, and improves the service life of the connecting bearing of the sweeping robot;

[0016] 2. By providing the oil injection holes and the oil storage grooves, by injecting lubricating oil into the oil injection holes, the lubricating oil flows into the bearing. The oil storage grooves are provided on the inner side wall of the oil injection holes, so that some lubricating oil can accumulate in the oil storage grooves and slowly fall as the bearing rotates, which facilitates the addition of lubricating oil to the bearing;

[0017] 3. By providing the inner ring and the wear-resistant coating, since the material of the inner ring is carbon steel, the high-temperature resistance of the inner ring can be improved. Since the outer wall of the inner ring is fixedly connected with a wear-resistant coating and the material of the wear-resistant coating is a polymer coating, the wear resistance of the inner ring can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0019] Figure 2 is a three-dimensional view of the outer ring of the present utility model;

[0020] Figure 3 is the present utility model Figure 2 The enlarged view of the structure at A in;

[0021] Figure 4 is a three-dimensional cross-sectional view of the outer ring of the present utility model;

[0022] Figure 5 This is a three-dimensional cross-sectional view of the inner ring of the utility model.

[0023] In the figure: 1. Outer ring; 2. Threaded hole; 3. Snap ring; 4. Through hole; 5. Bolt; 6. Oil filling hole; 7. Oil reservoir; 8. Ball; 9. Inner ring; 10. Wear-resistant coating. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] The following describes an embodiment of the present invention based on its overall structure.

[0026] See also Figures 1-5 A connecting bearing for a sweeping robot that is easy to add lubricating oil includes an outer ring 1, a threaded hole 2 is opened inside the outer ring 1, a retaining ring 3 is installed on the outer wall of the outer ring 1, a through hole 4 is opened inside the retaining ring 3, a bolt 5 is installed inside the through hole 4, the bolt 5 is threadedly connected to the outer ring 1 through the threaded hole 2, and the bolt 5 is adapted to the threaded hole 2. The threaded holes 2 are evenly distributed along the outer wall of the outer ring 1, and the through holes 4 are evenly distributed along the outer wall of the retaining ring 3, which can facilitate the assembly of the connecting bearing.

[0027] See also Figures 1-5 A connecting bearing for a sweeping robot that is easy to add lubricating oil. An oil filling hole 6 is opened on the top of the outer ring 1, and an oil storage tank 7 is opened on the inner wall of the oil filling hole 6. The oil filling hole 6 is symmetrically arranged with the central axis of the outer ring 1, and the oil storage tank 7 is symmetrically arranged with the central axis of the oil filling hole 6, which can facilitate the addition of lubricating oil to the bearing.

[0028] See also Figures 1-5 A connecting bearing for a sweeping robot that is easy to add lubricating oil, the inner wall of the outer ring 1 is movably connected to the ball 8, the outer wall of the ball 8 is movably connected to the inner ring 9, the outer wall of the inner ring 9 is fixedly connected to the wear-resistant coating 10, the ball 8 is embedded and installed between the outer ring 1 and the inner ring 9, and the outer ring 1 forms a rotating structure with the inner ring 9 through the ball 8. The material of the inner ring 9 is carbon steel, and the material of the wear-resistant coating 10 is a polymer coating. The inner ring 9 is tightly fitted with the wear-resistant coating 10, and the inner ring 9 is fitted with the ball 8, which can improve the wear resistance and high temperature resistance of the inner ring 9.

[0029] Working principle: When in use, by placing the ball 8 between the outer ring 1 and the inner ring 9, moving the snap ring 3 and making it dock with the outer wall of the outer ring 1, passing the bolt 5 through the through hole 4 and docking it to one end of the inner wall of the threaded hole 2, and rotating the bolt 5, the snap ring 3 can be installed on the outer wall of the outer ring 1 to block the ball 8, achieving the effect of facilitating the assembly of the connecting bearing. By injecting lubricating oil into the oil injection hole 6, the lubricating oil flows into the bearing. Since the inner side wall of the oil injection hole 6 is provided with an oil storage groove 7, some lubricating oil can accumulate in the oil storage groove 7 and slowly fall as the bearing rotates, achieving the effect of facilitating the addition of lubricating oil to the bearing. By using carbon steel as the material of the inner ring 9, the high-temperature resistance of the inner ring 9 can be improved. By fixedly connecting a wear-resistant coating 10 to the outer wall of the inner ring 9, and the material of the wear-resistant coating 10 is a polymer coating, the wear resistance of the inner ring 9 can be improved. In this way, the use process of the device is completed. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] The orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only a simplified description for facilitating the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the protection scope of the present invention.

[0031] 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 described 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 connecting bearing for a floor sweeping robot that is convenient for adding lubricating oil, including an outer ring (1), characterized in that: A threaded hole (2) is provided inside the outer ring (1). A snap ring (3) is installed on the outer wall of the outer ring (1). A through hole (4) is provided inside the snap ring (3). A bolt (5) is installed inside the through hole (4). An oil injection hole (6) is provided at the top of the outer ring (1). An oil storage groove (7) is provided on the inner side wall of the oil injection hole (6). The inner wall of the outer ring (1) is movably connected to a ball (8). The outer wall of the ball (8) is movably connected to an inner ring (9). A wear-resistant coating (10) is fixedly connected to the outer wall of the inner ring (9).

2. The connecting bearing for a floor sweeping robot that is convenient for adding lubricating oil according to claim 1, wherein: The bolt (5) is threadedly connected to the outer ring (1) through the threaded hole (2), and the bolt (5) is adapted to the threaded hole (2).

3. A connecting bearing for a floor sweeping robot that is convenient for adding lubricating oil according to claim 1, wherein: The threaded holes (2) are evenly distributed along the outer wall of the outer ring (1), and the through holes (4) are evenly distributed along the outer wall of the snap ring (3).

4. The connecting bearing for a floor sweeping robot that is convenient for adding lubricating oil according to claim 1, wherein: The oil injection holes (6) are symmetrically arranged with respect to the central axis of the outer ring (1), and the oil storage grooves (7) are symmetrically arranged with respect to the central axis of the oil injection holes (6).

5. A connecting bearing for a floor sweeping robot that is convenient for adding lubricating oil, characterized in that: The balls (8) are embedded between the outer ring (1) and the inner ring (9), and the outer ring (1) and the inner ring (9) form a rotating structure through the balls (8).

6. The connecting bearing for a floor sweeping robot that is convenient for adding lubricating oil according to claim 1, wherein: The material of the inner ring (9) is carbon steel, and the material of the wear-resistant coating (10) is a polymer coating.

7. A connecting bearing for a floor sweeping robot that is convenient for adding lubricating oil according to claim 1, characterized in that: The inner ring (9) and the wear-resistant coating (10) are closely fitted, and the inner ring (9) is in contact with the balls (8).

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