Wear-resistant deep groove ball bearing

Abstract

The utility model discloses a wear-resistant deep groove ball bearing and relates to the technical field of bearings. A wear-resistant deep groove ball bearing comprises an outer ring, a groove is formed in the inner wall of the outer ring, an oil injection structure is arranged on the outer ring, the oil injection structure comprises four fixing rods, a sealing plug, a contraction cylinder and a spring, an oil inlet is formed in the outer surface of the outer ring, and an oil inlet groove communicated with the interior of the oil inlet is formed in the outer ring. The four fixing rods are fixedly connected to the inner wall of the oil inlet groove, and through cooperation of the four fixing rods, the sealing plug, the spring and the shrinkage cylinder, lubricating oil can be filled only by inserting the filling nozzle into the oil inlet during filling, so that the lubricating oil can uniformly and rapidly enter the outer ring under the guidance of the oil flowing groove, and the lubricating effect is improved. And under the support of the spring, the deep groove bearing can be directly closed after lubricating oil filling is finished, redundant operation is not needed, and the convenience of the deep groove bearing during lubricating oil filling is further improved.

Description

Technical Field

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

[0002] The deep groove ball bearing, formerly known as the single row radial ball bearing, is the most widely used rolling bearing. It is characterized by low friction resistance and high speed. It can be used on parts that bear radial loads or combined loads of radial and axial forces at the same time, and can also be used on parts that bear axial loads. The Chinese utility model patent, authorization announcement number "CN214617534U" discloses a double row deep groove ball bearing with good wear resistance. In the utility model, the screw is unscrewed from one end of the oil inlet pipe, and then the lubricating oil is injected into the oil inlet pipe through the injection needle. The lubricating oil enters the oil tank along the oil inlet pipe, and then the lubricating oil enters each oil tank through the connection of the connecting pipe. Finally, the screw is screwed into the oil inlet pipe. When the bearing rotates, the lubricating oil in the oil tank is immersed in the No. 1 penetration block through the guide tube. When the ball rotates, the surface contacts the No. 1 penetration block, so that the surface of the ball is covered with lubricating oil, reducing the friction between the ball and the inner ring, outer ring, sealing ring and retaining frame, thereby improving the wear resistance of the bearing.

[0003] During the use of the above-mentioned deep groove ball bearing, when filling the deep groove bearing with lubricating oil, it is necessary to use an external tool to screw the screw on the filling port, which makes the process of filling the deep groove bearing with lubricating oil more cumbersome and inconvenient. Therefore, we propose a wear-resistant deep groove ball bearing. 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 wear-resistant deep groove ball bearing, which can solve the problem that when filling lubricating oil into the deep groove bearing, it is necessary to use an external tool to screw the screw on the filling port, thereby causing the process of filling lubricating oil into the deep groove bearing to be cumbersome and inconvenient.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a wear-resistant deep groove ball bearing, comprising:

[0006] The outer ring has a groove on its inner wall and an oil injection structure on the outer ring;

[0007] The oil filling structure includes four fixed rods, a sealing plug, a shrinkage tube and a spring. An oil inlet is provided on the outer surface of the outer ring, and an oil inlet groove connected to the inside of the oil inlet is provided inside the outer ring. The four fixed rods are fixedly connected to the inner wall of the oil inlet groove, the shrinkage tube is fixedly connected to the opposite ends of the four fixed rods, the sealing plug is fixedly connected to the top of the shrinkage tube, the spring is fixedly connected to the inner bottom wall of the shrinkage tube, and the top end of the spring is fixedly connected to the sealing plug.

[0008] Preferably, an oil flow groove communicating with the oil inlet groove is provided inside the outer ring, and a plurality of oil inlet holes communicating with the groove are provided on one side of the inner wall of the oil flow groove.

[0009] Preferably, an inner ring is arranged inside the outer ring, a raceway is provided on the outer surface of the inner ring, a plurality of balls are rollingly connected between the outer ring and the inner ring, and a retaining frame is installed on the outer surface of the plurality of balls.

[0010] Preferably, dust-proof retaining rings are installed on both sides of the outer ring.

[0011] Preferably, the plurality of balls are respectively connected to the grooves and the raceways in a rolling manner.

[0012] Preferably, the oil inlet is internally sealed and connected with a dust plug.

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

[0014] (1) The wear-resistant deep groove ball bearing, through the cooperation of four fixing rods, a sealing plug, a spring and a shrink tube, allows the lubricating oil to be added by simply inserting the filling nozzle into the oil inlet, so that the lubricating oil can enter the outer ring evenly and quickly under the guidance of the oil flow groove, and under the support of the spring, the lubricating oil will be directly closed after the filling is completed, without the need for unnecessary operations, further improving the convenience of the deep groove bearing when filling the lubricating oil.

[0015] (2) The wear-resistant deep groove ball bearing has a dust plug, which can prevent external dust and impurities from entering the oil inlet, thereby ensuring that the lubricating oil inside the deep groove ball bearing maintains a high degree of cleanliness, thereby making its lubrication effect more significant and extending the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the retainer structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the outer ring of the utility model;

[0020] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the shrinking tube of the utility model.

[0022] Figure numerals: 1. outer ring; 2. dust plug; 3. retaining ring; 4. inner ring; 5. ball; 6. retaining frame; 7. groove; 8. oil inlet hole; 9. raceway; 10. oil flow groove; 11. oil inlet groove; 12. fixing rod; 13. shrink tube; 14. sealing plug; 15. oil inlet; 16. spring. 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 wear-resistant deep groove ball bearing, comprising:

[0028] The outer ring 1 has a groove 7 formed on its inner wall and an oil injection structure provided on the outer ring 1;

[0029] The oil injection structure includes four fixed rods 12, a sealing plug 14, a shrinking tube 13 and a spring 16. An oil inlet 15 is provided on the outer surface of the outer ring 1, and an oil inlet groove 11 connected to the inside of the oil inlet 15 is provided inside the outer ring 1. The four fixed rods 12 are fixedly connected to the inner wall of the oil inlet groove 11, the shrinking tube 13 is fixedly connected to the opposite ends of the four fixed rods 12, the sealing plug 14 is fixedly connected to the top of the shrinking tube 13, the spring 16 is fixedly connected to the inner bottom wall of the shrinking tube 13, and the top end of the spring 16 is fixedly connected to the sealing plug 14.

[0030] An oil flow groove 10 connected to the oil inlet groove 11 is provided inside the outer ring 1, and a plurality of oil inlet holes 8 connected to the interior of the groove 7 are provided on one side of the inner wall of the oil flow groove 10. A dust plug 2 is sealed inside the oil inlet 15 and is made of soft rubber material.

[0031] An inner ring 4 is arranged inside the outer ring 1, and a raceway 9 is provided on the outer surface of the inner ring 4. A plurality of balls 5 are rollingly connected between the outer ring 1 and the inner ring 4. A retaining frame 6 is installed on the outer surface of the plurality of balls 5. The plurality of balls 5 are rollingly connected with the groove 7 and the raceway 9 respectively. Dust-proof retaining rings 3 are installed on both sides of the outer ring 1.

[0032] Furthermore, when using the device, the operator first pulls out the dust plug 2, and then inserts the filling nozzle into the oil inlet 15. The filling nozzle entering the oil inlet 15 will squeeze the sealing plug 14 to make it move downward. The downward movement of the sealing plug 14 will drive the shrinkage tube 13 to shrink and compress the spring 16, so that the lubricating oil enters the oil flow groove 10 from the oil inlet cavity opened between the sealing plug 14 and the oil inlet groove 11, so that the lubricating oil will flow under the annular guide of the oil flow groove 10, so that the lubricating oil will be discharged into the outer ring 1 from the multiple oil inlet holes 8 on one side of the oil flow groove 10, so as to facilitate the lubrication of the multiple balls 5 in the outer ring 1. After the lubricating oil is filled, it is only necessary to detach the filling nozzle from the sealing plug 14, so that the sealing plug 14 will block the oil inlet 15 under the support of the spring 16.

[0033] Through the cooperation of the four fixing rods 12, the sealing plug 14, the spring 16 and the shrinking tube 13, when filling the lubricating oil, it is only necessary to insert the filling nozzle into the oil inlet 15, so that under the guidance of the oil flow groove 10, the lubricating oil can enter the outer ring 1 evenly and quickly, and under the support of the spring 16, the lubricating oil will be directly closed after the filling is completed, without the need for unnecessary operations, further improving the convenience of deep groove bearings when filling with lubricating oil.

[0034] The dust plug 2 is provided to prevent external dust and impurities from entering the oil inlet 15, thereby ensuring that the lubricating oil inside the deep groove ball bearing maintains a high degree of cleanliness, thereby making its lubrication effect more significant and extending the service life of the bearing.

[0035] Working principle: The operator first pulls out the dust plug 2, and then inserts the filling nozzle into the oil inlet 15. The filling nozzle entering the oil inlet 15 will squeeze the sealing plug 14 to make it move downward. The downward movement of the sealing plug 14 will drive the shrinkage tube 13 to shrink and compress the spring 16, so that the lubricating oil enters the oil flow groove 10 from the oil inlet cavity opened between the sealing plug 14 and the oil inlet groove 11, so that the lubricating oil will flow under the annular guide of the oil flow groove 10, so that the lubricating oil will be discharged into the outer ring 1 from the multiple oil inlet holes 8 on one side of the oil flow groove 10, so as to facilitate the lubrication of the multiple balls 5 in the outer ring 1. After the lubricating oil is filled, it is only necessary to separate the filling nozzle from the sealing plug 14, so that the sealing plug 14 will block the oil inlet 15 under the support of the spring 16.

[0036] 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 wear-resistant deep groove ball bearing, characterized in that: include: An outer ring (1), the inner wall of the outer ring (1) is provided with a groove (7), and an oil injection structure is provided on the outer ring (1); The oil injection structure comprises four fixing rods (12), a sealing plug (14), a shrinking tube (13) and a spring (16); an oil inlet (15) is provided on the outer surface of the outer ring (1); and an oil inlet groove (11) is provided inside the outer ring (1) and is connected to the inside of the oil inlet (15); The four fixing rods (12) are all fixedly connected to the inner wall of the oil inlet groove (11), and the shrinking tube (13) is fixedly connected to the opposite ends of the four fixing rods (12); The sealing plug (14) is fixedly connected to the top of the shrink tube (13), the spring (16) is fixedly connected to the inner bottom wall of the shrink tube (13), and the top end of the spring (16) is fixedly connected to the sealing plug (14).

2. A wear-resistant deep groove ball bearing according to claim 1, characterized in that: The outer ring (1) is provided with an oil flow groove (10) in communication with the oil inlet groove (11); A plurality of oil inlet holes (8) communicating with the interior of the groove (7) are provided on one side of the inner wall of the oil flow groove (10).

3. A wear-resistant deep groove ball bearing according to claim 1, characterized in that: An inner ring (4) is arranged inside the outer ring (1), a raceway (9) is provided on the outer surface of the inner ring (4), and a plurality of balls (5) are rollingly connected between the outer ring (1) and the inner ring (4); A retaining frame (6) is installed on the outer surface of the plurality of balls (5).

4. A wear-resistant deep groove ball bearing according to claim 3, characterized in that: Dust-proof retaining rings (3) are installed on both sides of the outer ring (1).

5. The wear-resistant deep groove ball bearing according to claim 3, characterized in that: The plurality of balls (5) are respectively connected in a rolling manner to the grooves (7) and the raceways (9).

6. The wear-resistant deep groove ball bearing according to claim 1, characterized in that: The interior of the oil inlet (15) is sealed and connected with a dust plug (2).

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