High-rotating-speed low-friction deep groove ball bearing

Abstract

The utility model belongs to the technical field of deep groove ball bearings, and particularly relates to a high-rotating-speed low-friction deep groove ball bearing which comprises a bearing inner ring and a bearing outer ring, steel balls are movably connected between the bearing inner ring and the bearing outer ring, a retainer is movably connected to the outer sides of the steel balls, and sealing rings are fixedly connected to the top and the lower portion of the retainer. By arranging the sealing ring, lubricating oil can be quickly added to the surfaces of the steel balls; lubricating oil can be added into the connecting ring by pulling out the sealing plug, the added lubricating oil can enter the oil inlet hole through the oil outlet groove and make contact with the steel ball through the oil inlet hole, and when the steel ball rotates, the lubricating oil can completely cover the surface of the steel ball under the action of centrifugal force; therefore, friction force generated during operation of the ball bearing is reduced, lubricating oil does not need to be added to the surfaces of the steel balls by detaching the sealing ring, and working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to deep groove ball bearing technical field, concretely is a kind of high-speed low-friction deep groove ball bearing. BACKGROUND

[0002] Deep groove ball bearing is a common rolling bearing type, its structural feature is that spherical rolling body is embedded in two annular bearing grooves, deep groove ball bearing simple structure, compared with other type bearings, it is easy to realize higher manufacturing precision, it is convenient to be serially mass-produced, manufacturing cost is also lower, it is extremely common in mechanical manufacturing field.

[0003] The existing deep groove ball bearing is large in friction force when running, the bearing is prone to heat, the rotation speed of deep groove ball bearing cannot be improved, so that the working efficiency of deep groove ball bearing is low, the friction force when bearing operates can be reduced by adding lubricating oil to the surface of steel ball, so that deep groove ball bearing can adapt to high-speed rotating working condition, but steel ball is rotated simultaneously and can cause certain loss to lubricating oil, and staff needs to add lubricating oil to the surface of steel ball periodically, but sealing ring on deep groove ball bearing needs to be disassembled when adding, and the operation is inconvenient, and the working efficiency is low. SUMMARY

[0004] The utility model aims at providing a kind of high-speed low-friction deep groove ball bearing to solve the problems presented in the above background.

[0005] To achieve the above object, the utility model adopts the technical scheme that provide a kind of high-speed low-friction deep groove ball bearing, including bearing inner ring and bearing outer ring, the bearing inner ring and bearing outer ring between movable connection have steel ball, the outer side movable connection of steel ball has retainer, the top and lower part of retainer are all fixedly connected with sealing ring, the sealing ring includes fixed ball fixedly connected in the inside of retainer, the outer side of fixed ball is fixedly connected with fixed column, the end of fixed column away from fixed ball is fixedly connected with connecting ring, the outer side of connecting ring is fixedly connected with sealing outer ring, the inner side of connecting ring is fixedly connected with sealing inner ring, the side of connecting ring close to retainer is equipped with oil groove, the side of connecting ring away from retainer is fixedly connected with sealing plug.

[0006] Optionally, bearing inner ring includes inner ring main body, the outer side of inner ring main body is equipped with inner ring groove.

[0007] Optionally, bearing outer ring includes outer ring main body, the inner side of outer ring main body is equipped with outer ring groove.

[0008] Optionally, the retainer comprises an upper frame and a lower frame movably connected outside the steel ball, the upper frame and the lower frame are respectively provided with a fixed groove and an oil inlet hole, the upper frame and the fixed groove are respectively provided with a through hole and a ball groove, the lower part of the upper frame is fixedly connected with an extrusion cylinder, the top of the lower frame is fixedly connected with an extrusion column, and the lower part of the upper frame and the top of the lower frame are provided with heat dissipation holes.

[0009] Optionally, the sealing outer ring, the fixed ball and the sealing inner ring are made of rubber.

[0010] Optionally, the extrusion column and the extrusion cylinder are in interference fit.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The utility model discloses a sealing ring is set up, be favorable to the surface of steel ball is added lubricating oil fast, can the lubricating oil be added to the inside of connecting ring through pulling down the sealing plug, and the lubricating oil that adds can enter the oil inlet hole through the oil outlet groove, and through the oil inlet hole and the steel ball contact, when the steel ball rotates, under the action of centrifugal force makes the lubricating oil can completely cover the surface of steel ball, thereby reducing the friction between steel ball and bearing inner ring, bearing outer ring and retainer, so that the utility model can adapt to the working condition of high -speed rotation, and need not to dismount the sealing ring to add lubricating oil to the surface of steel ball, convenient operation has improved work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be to the embodiment or the prior art description needed to use the drawing briefly introduce, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0014] Figure 1 It is the cross-sectional structure schematic view of the utility model;

[0015] Figure 2 It is the overall structure schematic view of the utility model;

[0016] Figure 3 It is the structure schematic view of bearing inner ring and bearing outer ring of the utility model;

[0017] Figure 4 It is the cross-sectional structure schematic view of the retainer of the utility model;

[0018] Figure 5 It is the cross-sectional structure schematic view of the sealing ring of the utility model.

[0019] In the figure: 1, bearing inner ring; 101, inner ring main body; 102, inner ring groove; 2, steel ball; 3, bearing outer ring; 301, outer ring main body; 302, outer ring groove; 4, retainer; 401, upper frame; 402, fixed groove; 403, through hole; 404, lower frame; 405, extrusion column; 406, extrusion cylinder; 407, oil inlet hole; 408, heat dissipation hole; 409, ball groove; 5, sealing ring; 501, connecting ring; 502, sealing outer ring; 503, oil outlet groove; 504, fixed column; 505, fixed ball; 506, sealing inner ring; 507, sealing plug. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the following will further describe the present application in conjunction with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] In addition, the terms "first", "second", "third", etc. are only used for description purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0024] Reference Figures 1 to 5The utility model discloses a high -speed low friction deep groove ball bearing provided with a bearing inner ring 1, a bearing outer ring 3, a steel ball 2, a retainer 4, a sealing ring 5, a fixed ball 505, a fixed column 504, a connecting ring 501, a sealing outer ring 502, a sealing inner ring 506 and a sealing plug 507.

[0025] Further, the bearing inner ring 1 includes an inner ring body 101, and an inner ring groove 102 is arranged on the outer side of the inner ring body 101 and is in contact with the surface of the steel ball 2. The steel ball 2 can roll in the inner ring groove 102.

[0026] Further, the bearing outer ring 3 includes an outer ring body 301, and an outer ring groove 302 is arranged on the inner side of the outer ring body 301 and is in contact with the surface of the steel ball 2. The steel ball 2 can roll in the outer ring groove 302.

[0027] Further, the retainer 4 comprises an upper holder 401 and a lower holder 404 movably connected outside the steel ball 2, the top of the upper holder 401 and the lower part of the lower holder 404 are respectively provided with a fixing groove 402 and an oil inlet hole 407, the fixing groove 402 is used for fixing the pressing of the ball 505, and the oil inlet hole 407 corresponds to the oil outlet groove 503, so that the lubricating oil can enter the oil inlet hole 407 through the oil outlet groove 503, and the lubricating oil can flow to the surface of the steel ball 2 through the oil inlet hole 407, the upper holder 401 and the inside of the fixing groove 402 are respectively provided with a through hole 403 and a ball groove 409, the ball groove 409 is used for limiting the steel ball 2, and the steel ball 2 can roll in the ball groove 409, the lower part of the upper holder 401 is fixedly connected with an extrusion cylinder 406, the top of the lower holder 404 is fixedly connected with an extrusion column 405, and the lower part of the upper holder 401 and the top of the lower holder 404 are respectively provided with a heat dissipation hole 408, the heat dissipation hole 408 is communicated with the through hole 403, when the steel ball 2 generates heat due to friction, the heat can enter the through hole 403 through the heat dissipation hole 408, so that the utility model is cooled.

[0028] Further, the materials of the sealing outer ring 502, the fixed ball 505 and the sealing inner ring 506 are all rubber, the fixed ball 505 can be deformed through extrusion, so that the fixed ball 505 can be pressed into the fixing groove 402, so as to fix the sealing ring 5.

[0029] Further, the extrusion column 405 and the extrusion cylinder 406 are in interference fit, the extrusion column 405 and the extrusion cylinder 406 can be fixed together through the interference fit, so that the upper holder 401 and the lower holder 404 can be fixed together, so that the upper holder 401 and the lower holder 404 can limit the steel ball 2.

[0030] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high speed, low friction deep groove ball bearing comprising an inner bearing ring (1) and an outer bearing ring (3), characterized in that: The bearing inner ring (1) and the bearing outer ring (3) are movably connected with the steel ball (2), the outer side of the steel ball (2) is movably connected with the retainer (4), the top and the lower part of the retainer (4) are fixedly connected with the sealing ring (5), the sealing ring (5) comprises a fixed ball (505) fixedly connected inside the retainer (4), the outer side of the fixed ball (505) is fixedly connected with a fixed column (504), the fixed column (504) is fixedly connected with a connecting ring (501) at the end away from the fixed ball (505), the outer side of the connecting ring (501) is fixedly connected with a sealing outer ring (502), the inner side of the connecting ring (501) is fixedly connected with a sealing inner ring (506), one side of the connecting ring (501) close to the retainer (4) is provided with an oil outlet groove (503), the side of the connecting ring (501) away from the retainer (4) is fixedly connected with a sealing plug (507).

2. The high-rotational-speed low-friction deep-groove ball bearing according to claim 1, characterized in that: The bearing inner ring (1) comprises an inner ring body (101), and the outer side of the inner ring body (101) is provided with an inner ring groove (102).

3. The high-rotational-speed low-friction deep-groove ball bearing of claim 1, wherein: The bearing outer ring (3) comprises an outer ring body (301), and the inner side of the outer ring body (301) is provided with an outer ring groove (302).

4. The high-rotational-speed low-friction deep-groove ball bearing of claim 1, wherein: The retainer (4) comprises an upper frame (401) and a lower frame (404) movably connected outside the steel ball (2), the top of the upper frame (401) and the lower part of the lower frame (404) are provided with a fixed groove (402) and an oil inlet hole (407), the inside of the upper frame (401) and the fixed groove (402) are provided with a through hole (403) and a ball groove (409), the lower part of the upper frame (401) is fixedly connected with an extrusion cylinder (406), the top of the lower frame (404) is fixedly connected with an extrusion column (405), and the lower part of the upper frame (401) and the top of the lower frame (404) are provided with a heat dissipation hole (408).

5. The high-rotational-speed low-friction deep-groove ball bearing of claim 1, wherein: The sealing outer ring (502), the fixed ball (505) and the sealing inner ring (506) are all made of rubber.

6. The high-rotational-speed low-friction deep-groove ball bearing of claim 4, wherein: The extrusion column (405) and the extrusion cylinder (406) are in interference fit.

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