Combined deep groove ball bearing

Abstract

The utility model discloses a combined deep groove ball bearing, which relates to the technical field of deep groove ball bearings and comprises an outer ring, an inner ring, balls and a retainer, the outer ring is mounted outside the inner ring, the balls and the retainer are mounted between the inner side of the outer ring and the outer side of the inner ring, and first annular grooves are formed in the upper end and the lower end of the inner ring respectively. Second annular grooves are formed in the inner walls of the two first annular grooves correspondingly, the rotating rings continue to press downwards in the first annular grooves, then the two rotating balls enter the second annular grooves correspondingly, then the two rotating balls make sliding contact with the inner walls of the second annular grooves, and then the rotating rings can be installed at the top end of the integral bearing. And meanwhile, the installation mode of the dustproof plate is convenient and fast, the dustproof plate can further rotate on the surface of the whole bearing through the rotating ball, and therefore follow-up oil injection lubrication maintenance of the ball is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of deep groove ball bearings, in particular to a combined deep groove ball bearing. Background Art

[0002] Deep groove ball bearings are a type of rolling bearing. Due to their advantages such as low friction resistance and high speed, they are the most widely used type of rolling bearings. They can be used on parts that bear radial loads or combined loads of radial and axial loads. They can also be used on parts that bear axial loads. This type of deep groove ball bearings is used in components such as electric motors and gearboxes.

[0003] The existing common deep groove ball bearings are composed of four parts: an outer ring, an inner ring, balls and a cage. When the deep groove ball bearings are used for a long time, dust and impurities are easily introduced between the outer ring and the inner ring of the bearing, making the installed balls easily affected by the dust and impurities, thereby affecting the normal use of the balls and easily damaging the bearings. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a combined deep groove ball bearing that can solve the problem that dust and impurities easily enter between the outer ring and the inner ring of the bearing, thereby making the installed balls easily affected by the dust and impurities, thereby affecting the normal use of the balls.

[0005] To achieve the above object, the utility model provides the following technical solution: a combined deep groove ball bearing, comprising an outer ring, an inner ring, balls, and a cage, wherein the outer ring is mounted outside the inner ring, and the balls and the cage are mounted between the inner side of the outer ring and the outer side of the inner ring;

[0006] The upper and lower ends of the inner ring are both provided with first annular grooves, and the inner walls of the two first annular grooves are both provided with second annular grooves;

[0007] The dustproof component includes a rotating ring, the outer surface of the rotating ring is slidably connected to the inner wall of the first annular groove, a dustproof plate is fixedly connected to the top of the rotating ring, two limiting sliding grooves are provided inside the rotating ring, and two limiting slide plates are provided on the inner walls of the two limiting sliding grooves, and the outer surfaces of the two limiting slide plates are respectively slidably connected to the inner walls of the corresponding limiting sliding grooves.

[0008] Preferably, the opposite ends of the two limit slide plates are provided with rotation grooves, and the interiors of the two rotation grooves are rotatably connected with rotation balls.

[0009] Preferably, the opposite ends of the two limiting slide plates are fixedly connected with pressure springs, and the opposite ends of the two pressure springs are respectively fixedly connected to the inner walls of the corresponding limiting slide grooves.

[0010] Preferably, the inner circular hole of the dustproof plate is the same size as the inner part of the inner ring, an oil groove is provided inside the dustproof plate, and a rotating ball is rotatably connected inside the oil groove.

[0011] Preferably, the outer surface of the rotating ball contacts the outer surface of the rolling ball, and an oil leakage groove is provided inside the rotating ball.

[0012] Preferably, the inner wall of the oil groove is provided with threads, the inner wall of the oil groove is threadedly connected with a threaded cover, and two dustproof components are provided, and the two dustproof components are respectively arranged at the upper and lower ends of the inner ring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The combined deep groove ball bearing continues to press down inside the first annular groove through the rotating ring, and then the two rotating balls will enter the inside of the second annular groove respectively, and then the two rotating balls will slide and contact with the inner wall of the second annular groove, and then the rotating ring can be installed on the top of the integral bearing, so that the dustproof plate can prevent dust from adhering to the surface of the ball. At the same time, the installation method of the dustproof plate is relatively convenient. At the same time, the dustproof plate can also rotate on the surface of the integral bearing through the rotating ball, so as to facilitate the subsequent oiling, lubrication and maintenance of the ball.

[0015] (2) The combined deep groove ball bearing is provided with a threaded cover, and then the threaded cover is removed from the inside of the oil leakage groove, and then the lubricating oil is poured into the inside of the oil groove, and then the dust plate is rotated, and then the ball will rotate and move on the surface of the ball, and then the lubricating oil inside the oil leakage groove will flow through the inside of the oil leakage groove to the surface of the ball, thereby lubricating and maintaining the ball, so that the deep groove ball bearing can be more convenient to maintain and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a combined deep groove ball bearing of the utility model;

[0018] Figure 2 It is a plan view of the cage of the utility model;

[0019] Figure 3 It is a plan view of the limiting slideway of the utility model;

[0020] Figure 4 This is a schematic diagram of the rotating bead structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the second annular groove structure of the utility model.

[0022] Figure numerals: 1. outer ring; 2. inner ring; 3. first annular groove; 4. ball; 5. second annular groove; 6. rotating ring; 7. dust plate; 8. oil groove; 9. rotating ball; 10. oil leakage groove; 11. threaded cover; 12. rotating ball; 13. limiting slide groove; 14. limiting slide plate; 15. pressure spring; 16. rotating groove; 17. retaining frame. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] See also Figure 1-5 The utility model provides a technical solution: a combined deep groove ball bearing, comprising an outer ring 1, an inner ring 2, balls 4, and a retainer 17, wherein the outer ring 1 is mounted outside the inner ring 2, and the balls 4 and the retainer 17 are mounted between the inner side of the outer ring 1 and the outer side of the inner ring 2;

[0028] The inner ring 2 has first annular grooves 3 at both ends, and the inner walls of the two first annular grooves 3 have second annular grooves 5.

[0029] The dustproof component includes a rotating ring 6, the outer surface of the rotating ring 6 is slidably connected to the inner wall of the first annular groove 3, the top of the rotating ring 6 is fixedly connected with a dustproof plate 7, the interior of the rotating ring 6 is provided with two limiting slide grooves 13, the inner walls of the two limiting slide grooves are provided with two limiting slide plates 14, and the outer surfaces of the two limiting slide plates 14 are respectively slidably connected to the inner walls of the corresponding limiting slide grooves 13.

[0030] Furthermore, the opposite ends of the two limiting slides 14 are provided with a rotating groove 16, and the interiors of the two rotating grooves 16 are rotatably connected with a rotating ball 12. The opposite ends of the two limiting slides 14 are fixedly connected with a pressure spring 15, and the opposite ends of the two pressure springs 15 are respectively fixedly connected to the inner walls of the corresponding limiting slide grooves 13.

[0031] Furthermore, the internal circular hole of the dustproof plate 7 is the same size as the internal part of the inner ring 2, and an oil groove 8 is opened inside the dustproof plate 7, and a rotating ball 9 is rotatably connected inside the oil groove 8. The outer surface of the rotating ball 9 contacts the outer surface of the ball 4, and an oil leakage groove 10 is opened inside the rotating ball 9. The inner wall of the oil groove 8 is threaded, and the inner wall of the oil groove 8 is threadedly connected with a threaded cover 11. Two dustproof components are provided, and the two dustproof components are respectively arranged at the upper and lower ends of the inner ring 2.

[0032] Furthermore, the staff will push the dustproof plate 7 together with the rotating ring 6 into the interior of the first annular groove 3, and then the rotating balls 12 on both sides of the rotating ring 6 will respectively contact and squeeze the inner walls of the limiting slide groove 13, and then the two rotating balls 12 will respectively drive the two limiting slide plates 14 to move in opposite directions, and then the rotating ring 6 will continue to press down inside the first annular groove 3, and then the two rotating balls 12 will respectively enter the interior of the second annular groove 5, and then the two rotating balls 12 will slide in contact with the inner wall of the second annular groove 5, and then the rotating ring 6 can be installed on the top of the integral bearing, so that the dustproof plate 7 can prevent dust from adhering to the surface of the ball 4.

[0033] Furthermore, through the setting of the threaded cover 11, the threaded cover 11 is then removed from the inside of the oil leakage groove 8, and then the lubricating oil is poured into the inside of the oil groove 8, and then the dust plate 7 is rotated, and then the rotating ball 9 will rotate and move on the surface of the ball 4, and then the lubricating oil inside the oil leakage groove 8 will flow through the inside of the oil leakage groove 10 to the surface of the ball 4, thereby lubricating and maintaining the ball 4, so that the deep groove ball bearing can be more convenient to maintain and use.

[0034] Working principle: The staff will put the dustproof plate 7 together with the rotating ring 6 into the interior of the first annular groove 3, and then the rotating balls 12 on both sides of the rotating ring 6 will contact and squeeze with the inner walls of the limiting slide groove 13 respectively, and then the two rotating balls 12 will respectively drive the two limiting slide plates 14 to move in opposite directions, and then the rotating ring 6 will continue to press down inside the first annular groove 3, and then the two rotating balls 12 will respectively enter the interior of the second annular groove 5, and then the two rotating balls 12 will slide in contact with the inner wall of the second annular groove 5, and then the rotating ring 6 can be installed on the top of the integral bearing, so that the dustproof plate 7 can prevent dust from sticking to the surface of the ball 4. After installing the dustproof plate 7 at one end of the complete bearing, the dustproof plate 7 at the other end can be installed.

[0035] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A combined deep groove ball bearing, characterized in that: The invention comprises an outer ring (1), an inner ring (2), balls (4), and a retaining frame (17), wherein the outer ring (1) is mounted outside the inner ring (2), and the balls (4) and the retaining frame (17) are mounted between the inner side of the outer ring (1) and the outer side of the inner ring (2); The inner ring (2) is provided with first annular grooves (3) at both upper and lower ends, and the inner walls of the two first annular grooves (3) are provided with second annular grooves (5); The dustproof component comprises a rotating ring (6), the outer surface of the rotating ring (6) is slidably connected to the inner wall of the first annular groove (3), the top of the rotating ring (6) is fixedly connected to a dustproof plate (7), the interior of the rotating ring (6) is provided with two limiting sliding grooves (13), the inner walls of the two limiting sliding grooves are provided with two limiting slide plates (14), and the outer surfaces of the two limiting slide plates (14) are respectively slidably connected to the inner walls of the corresponding limiting sliding grooves (13).

2. A combined deep groove ball bearing according to claim 1, characterized in that: The two limiting slide plates (14) are provided with rotation grooves (16) at the opposite ends thereof; The insides of the two rotating grooves (16) are both rotatably connected with rotating balls (12).

3. A combined deep groove ball bearing according to claim 1, characterized in that: The opposite ends of the two limiting slide plates (14) are fixedly connected with pressure springs (15); The opposite ends of the two pressure springs (15) are respectively fixedly connected to the inner walls of the corresponding limiting sliding grooves (13).

4. A combined deep groove ball bearing according to claim 1, characterized in that: The inner circular hole of the dustproof plate (7) is the same size as the inner hole of the inner ring (2); An oil groove (8) is provided inside the dustproof plate (7), and a rotating ball (9) is rotatably connected inside the oil groove (8).

5. A combined deep groove ball bearing according to claim 4, characterized in that: The outer surface of the rotating ball (9) contacts the outer surface of the rolling ball (4), and an oil leakage groove (10) is provided inside the rotating ball (9).

6. A combined deep groove ball bearing according to claim 4, characterized in that: The inner wall of the oil groove (8) is provided with a thread, and the inner wall of the oil groove (8) is threadedly connected with a threaded cover (11); There are two dustproof components, which are respectively arranged at the upper and lower ends of the inner ring (2).

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