Inner ring oil storage structure for ball bearing

Abstract

The inner ring oil storage structure comprises an inner ring, an outer ring, a roller and a retainer, the roller and the retainer are arranged between the inner ring and the outer ring, arc-shaped roller paths are arranged on the side walls of the sides, facing the roller, of the inner ring and the outer ring, and the roller is partially contained in the arc-shaped roller paths and is in running fit with the arc-shaped roller paths. An oil storage groove with an opening facing the roller is formed in the position, corresponding to the roller path, of the inner ring in the circumferential direction of the outer circumferential wall of the inner ring, a plurality of oil guiding pieces are arranged in the oil storage groove, each oil guiding piece is rotationally connected with the inner circumferential wall of the oil storage groove, one side of each oil guiding piece makes contact with the bottom of the oil storage groove, and the other side of each oil guiding piece makes contact with the outer circumferential wall of the roller. The oil storage structure can guide lubricating oil at the bottom of the oil storage tank to the upper portion of the oil storage tank to make contact with the roller, the oil guide effect is good, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of ball bearings, in particular to an inner ring oil storage structure for a ball bearing. Background Art

[0002] Ball bearings are a very common mechanical component. They are mainly used to reduce friction during movement and provide support and guidance. Each ball bearing is generally composed of an inner ring, an outer ring, a cage and several rollers. This ball bearing is designed to support radial loads (perpendicular to the axis) and axial loads (parallel to the axis). They are widely used in various industrial applications, including motors, automobiles, bicycles, machine tools, etc. Existing ball bearings generally add lubricating oil to the corresponding roller position when in use to ensure that the roller can maintain low friction under high-speed operation. However, when too much lubricating oil is added, the rolling of the rollers can easily cause excess grease to overflow. Existing ball bearings generally use an oil storage tank in the bearing to store excess grease. The larger the volume of the oil storage tank, the more grease can be stored. However, since this oil storage tank has a certain radial depth, the rollers in the bearing can only contact with the opening of the oil storage tank, but cannot contact with the bottom of the oil storage tank, and the lubricating oil is easily deposited at the bottom of the oil storage tank. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an inner ring oil storage structure for a ball bearing, which can guide the lubricating oil at the bottom of the oil storage tank to the upper part of the oil storage tank to contact the roller, has good oil guiding effect and simple structure.

[0004] To achieve the above-mentioned purpose, the utility model provides an inner ring oil storage structure for a ball bearing, comprising an inner ring, an outer ring, a roller and a retaining frame arranged between the inner ring and the outer ring, the side walls of the inner ring and the outer ring facing the roller are both provided with an arcuate raceway, the roller is partially accommodated in the arcuate raceway and rotatably cooperates therewith, an oil storage groove with an opening facing the roller is circumferentially provided along the outer peripheral wall of the inner ring at a position corresponding to the raceway of the inner ring, a plurality of oil guide members are provided in the oil storage groove, each of the oil guide members is rotatably connected to the inner peripheral wall of the oil storage groove, one side of the oil guide member contacts the bottom of the oil storage groove, and the other side contacts the outer peripheral wall of the roller, and the oil guide member rotates in cooperation with the roller.

[0005] The effect that can be produced by adopting the above technical scheme is as follows: the ball bearing in this scheme is composed of an inner ring, an outer ring, a retaining frame and a plurality of rollers. An arc-shaped raceway is set and the roller is set at a position corresponding to the arc-shaped raceway, so that the roller can be located in the arc-shaped raceway when rolling at high speed and is not easy to escape from the arc-shaped raceway. The outer peripheral wall of the roller can contact the inner ring and the outer ring. This scheme adopts an oil storage tank set in the inner ring, and the oil storage tank is opened at a position corresponding to the raceway. The opening of the oil storage tank faces the roller, and the roller set in the arc-shaped raceway can contact the opening of the oil storage tank. Since friction will be generated when the roller rotates at a high speed, technical personnel in this field will add grease to the raceway when installing the bearing to reduce the friction between the roller and the inner ring / outer ring. When there is too much grease attached to the surface of the roller, the roller can store the excess grease on its surface in the roller by rolling at high speed. In the oil storage tank arranged in the arc-shaped raceway, since the oil storage tank has a certain depth, the roller can only roll in the arc-shaped raceway and cannot directly contact the bottom of the oil storage tank. A plurality of oil guide parts are arranged in the oil storage tank, one side of the oil guide part can contact the bottom of the oil storage tank and the other side can contact the roller. When the roller rolls, the oil guide part can be driven to rotate. After the oil guide part rotates, part of the grease can adhere to the surface of the oil guide part. When the bottom side rotates to the roller position and contacts the roller, the bottom side of the oil guide part can also adhere the grease at the bottom of the oil storage tank to the surface of the oil guide part and guide it to the contact position with the roller. Then, through the continuous rotation of the roller, the grease on the surface of the oil guide part can adhere to the surface of the roller. The oil guide part can guide the grease at the bottom of the oil storage tank to the surface of the roller, so as to avoid the accumulation of grease at the bottom of the oil storage tank. The structure is simple and the oil guiding effect is good.

[0006] The utility model is further configured that: the oil guide member is an oil guide bead, the oil guide beads are evenly distributed along the length direction of the oil storage tank, and an oil storage notch is provided on the surface of each oil guide bead.

[0007] The effect that can be produced by adopting the above technical scheme is: in this scheme, oil guide beads are used as oil guide parts, and the oil guide beads are a sphere, which can be smoother when rolling, and the oil guide beads are evenly distributed along the length direction of the oil storage tank so that the oil guide beads can be evenly arranged in the oil storage tank. When the bearing runs at high speed, the rollers in the bearing can effectively contact the oil guide beads, and the oil guide efficiency is high. An oil storage notch is set on the surface of the oil guide ball. When the oil guide ball rolls, the oil storage notch on the bottom side of the oil guide ball can accommodate part of the grease at the bottom of the oil storage tank in the oil storage notch, and the oil storage notch originally on the bottom side of the oil guide ball is rotated to the side of the oil guide ball facing the roller through the rolling of the oil guide ball. The oil storage notch has a good oil storage effect. The oil guide effect of the oil guide ball is better by setting the notch, and the structure is simple.

[0008] The utility model is further configured that: an elastic rubber pad is arranged at the position of the oil guide bead at the bottom of the oil storage tank corresponding to the position of the oil guide bead, and the oil guide bead can contact the elastic rubber pad.

[0009] The effect that can be produced by adopting the above technical scheme is: an elastic rubber pad is set at the bottom of the oil storage tank. When a technical personnel in this field installs the roller in the roller, the roller contacts the oil guide ball and generates pressure on the oil guide ball. At this time, the oil guide ball can squeeze the elastic rubber pad set at the bottom of the oil storage tank so that the elastic rubber pad is deformed and the oil guide ball and the roller can be fully in contact, thereby avoiding excessive mutual force between the roller and the oil guide ball to damage the bearing. The structure is simple and the contact efficiency and grease conduction efficiency are improved.

[0010] The utility model is further configured that: an inner side wall of the oil storage tank is provided with a positioning arc groove corresponding to each oil guide bead, and the oil guide bead is partially accommodated in the positioning arc groove.

[0011] The effect that can be produced by adopting the above-mentioned technical scheme is: a positioning arc groove is provided on the inner wall of the oil storage tank corresponding to each oil guide bead, and the positioning arc groove is used to position the oil guide bead in the oil storage tank. Since the oil guide bead will roll with the roller, the positioning arc groove can position the oil guide bead when it rolls, thereby preventing the oil guide bead from deviating from the position and affecting the service life of the bearing.

[0012] The utility model is further provided that: the inner peripheral wall of the inner ring is provided with a tool withdrawal groove for withdrawing the tool after the bearing is processed.

[0013] The effect produced by adopting the above technical solution is: by setting a tool withdrawal groove on the inner circumferential wall of the inner ring, after the technical personnel in the field process the bearing, the tool can be withdrawn from the tool withdrawal groove, making the processing of the bearing more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A partial cross-sectional view of an embodiment of the utility model;

[0015] Figure 2 It is an enlarged view of the local structure of the oil storage tank of the embodiment of the utility model. DETAILED DESCRIPTION

[0016] An embodiment of an inner ring oil storage structure for a ball bearing of the utility model is shown in the figure. To achieve the above-mentioned purpose, the utility model provides an inner ring 1 oil storage structure for a ball bearing, comprising an inner ring 1, an outer ring 2, a roller 4 and a retaining frame 3 arranged between the inner ring 1 and the outer ring 2. The side walls of the inner ring 1 and the outer ring 2 facing the roller 4 are both provided with an arc-shaped raceway 5. The roller 4 is partially accommodated in the arc-shaped raceway 5 and rotatably cooperates with it. The inner ring 1 is provided with an oil storage groove 6 with an opening facing the roller 4 along the circumferential direction of the outer peripheral wall of the inner ring 1 at the corresponding raceway position. The oil storage groove 6 is provided with a plurality of oil guide members, each of which is provided with an oil guide member. The oil guide member is rotatably connected to the inner peripheral wall of the oil storage tank 6. One side of the oil guide member contacts the bottom of the oil storage tank 6, and the other side contacts the outer peripheral wall of the roller 4. The oil guide member rotates in coordination with the roller 4. The ball bearing in this scheme is composed of an inner ring 1, an outer ring 2, a retainer 3 and a plurality of rollers 4. An arc-shaped raceway 5 is set and the roller 4 is set at a position corresponding to the arc-shaped raceway 5, so that the roller 4 can be located in the arc-shaped raceway 5 when rolling at high speed, and it is not easy to escape from the arc-shaped raceway 5. The outer peripheral wall of the roller 4 can contact the inner ring 1 and the outer ring 2. This scheme adopts the arrangement of the oil storage tank 6 in the inner ring 1, and the oil storage tank 6 is opened at the position corresponding to the raceway. The opening of the oil storage tank 6 faces the roller 4, and the roller 4 arranged in the arc raceway 5 can contact with the opening of the oil storage tank 6. Since the high-speed rotation of the roller 4 will generate friction, the technicians in this field will add grease to the raceway when installing the bearing to reduce the friction between the roller 4 and the inner ring 1 / outer ring 2. When there is too much grease attached to the surface of the roller 4, the roller 4 can store the excess grease on its surface in the oil storage tank 6 arranged in the arc raceway 5 by rolling at high speed. Since the oil storage tank 6 has a certain depth, the roller 4 can only roll in the arc raceway 5 and cannot directly contact with the bottom of the oil storage tank 6. A plurality of oil guides are arranged in the groove 6, one side of the oil guide can contact the bottom of the oil storage groove 6 and the other side can contact the roller 4. When the roller 4 rolls, the oil guide can be driven to rotate. After the oil guide rotates, part of the grease can be attached to the surface of the oil guide. When the bottom side rotates to the position of the roller 4 and contacts the roller 4, the bottom side of the oil guide can also attach the grease at the bottom of the oil storage groove 6 to the surface of the oil guide and guide it to the contact position with the roller 4. Then, the grease on the surface of the oil guide can be attached to the surface of the roller 4 through the continuous rotation of the roller 4. The oil guide can guide the grease at the bottom of the oil storage groove 6 to the surface of the roller 4.The oil guide member is an oil guide bead 7, which is evenly arranged along the length direction of the oil storage tank 6. Each of the oil guide bead 7 is provided with an oil storage notch 8 on its surface. In this solution, the oil guide bead 7 is used as the oil guide member. The oil guide bead 7 is a sphere, which can be more smooth when rolling. The oil guide bead 7 is evenly arranged along the length direction of the oil storage tank 6 so that the oil guide bead 7 can be evenly arranged in the oil storage tank 6. When the bearing runs at a high speed, the roller 4 in the bearing can effectively contact the oil guide bead 7, and the efficiency of oil guide is high. The oil guide ball 7 is provided with an oil storage gap 8 on its surface. When the oil guide ball 7 rolls, the oil storage gap 8 on one side of the bottom of the oil guide ball 7 can accommodate part of the grease at the bottom of the oil storage tank 6 in the oil storage gap 8, and the oil guide ball 7 rolls so that the oil storage gap 8 originally on one side of the bottom of the oil guide ball 7 is rotated to the side of the oil guide ball 7 facing the roller 4; an elastic rubber pad 9 is provided at the bottom of the oil storage tank 6 corresponding to the position of the oil guide ball 7, and the oil guide ball 7 can contact the elastic rubber pad 9. An elastic rubber pad 9 is arranged. When a person skilled in the art installs the roller 4 in the roller, the roller 4 contacts the oil guide bead 7 and generates pressure on the oil guide bead 7. At this time, the oil guide bead 7 can squeeze the elastic rubber pad 9 arranged at the bottom of the oil storage tank 6 so that the elastic rubber pad 9 is deformed and the oil guide bead 7 can fully contact with the roller 4. The inner side wall of the oil storage tank 6 is provided with a positioning arc groove 10 corresponding to each oil guide bead 7. The oil guide bead 7 is partially accommodated in the positioning arc groove 10. The inner side wall of the oil storage tank 6 is provided with a positioning arc groove 10 corresponding to each oil guide bead 7. The positioning arc groove 10 is used to position the oil guide bead 7 in the oil storage tank 6. Since the oil guide bead 7 will roll with the roller 4, the positioning arc groove 10 can position the oil guide bead 7 when it rolls. The inner peripheral wall of the inner ring 1 is provided with a tool withdrawal groove 11 for withdrawing the tool after the bearing is processed. The tool withdrawal groove 11 is arranged on the inner peripheral wall of the inner ring 1. After the person skilled in the art processes the bearing, the tool can withdraw from the tool withdrawal groove 11. ;

[0017] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. An inner ring oil storage structure for a ball bearing, comprising an inner ring, an outer ring, a roller and a cage arranged between the inner ring and the outer ring, characterized in that: The side walls of the inner ring and the outer ring facing the roller are both provided with an arc-shaped raceway, the roller is partially accommodated in the arc-shaped raceway and rotatably cooperates with it, and an oil storage groove with an opening facing the roller is circumferentially provided along the outer peripheral wall of the inner ring at the position corresponding to the raceway of the inner ring, and a plurality of oil guide parts are provided in the oil storage groove, each of which is rotatably connected to the inner peripheral wall of the oil storage groove, one side of the oil guide part contacts the bottom of the oil storage groove, and the other side contacts the outer peripheral wall of the roller, and the oil guide part rotates in cooperation with the roller.

2. The inner ring oil storage structure for a ball bearing according to claim 1, characterized in that: The oil guide member is an oil guide bead, and the oil guide beads are evenly distributed along the length direction of the oil storage tank. An oil storage notch is arranged on the surface of each oil guide bead.

3. The inner ring oil storage structure for a ball bearing according to claim 2, characterized in that: An elastic rubber pad is arranged at the bottom of the oil storage tank at a position corresponding to the oil guide bead, and the oil guide bead can contact the elastic rubber pad.

4. The inner ring oil storage structure for a ball bearing according to claim 1, characterized in that: The inner side wall of the oil storage tank is provided with a positioning arc groove corresponding to each oil guide bead, and the oil guide bead is partially accommodated in the positioning arc groove.

5. The inner ring oil storage structure for a ball bearing according to claim 1, characterized in that: The inner peripheral wall of the inner ring is provided with a tool withdrawal groove for withdrawing the tool after bearing processing.

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