Deep groove ball bearing with oil retaining structure on outer ring

Abstract

The utility model relates to a deep groove ball bearing with an oil retaining structure on an outer ring. The deep groove ball bearing comprises the outer ring, an inner ring, a plurality of steel balls and a retainer, wherein the steel balls are annularly arranged between an outer ring raceway and an inner ring raceway; the retainer is used for accommodating the steel balls; the inner diameter of the outer ring and the outer diameter of the inner ring are correspondingly provided with arc-shaped raceways respectively, and the steel balls are arranged in the raceways of the outer ring and the inner ring in a rolling fit manner; annular grooves are symmetrically formed in the outer diameter face of the outer ring, and a plurality of oil holes are formed in each annular groove in the direction from a groove opening to the groove bottom. Groove oil grooves are formed in the annular grooves located in the two sides of any two adjacent oil holes in the direction from the outer diameter to the inner diameter respectively, and the interiors of the groove oil grooves extend to oil stopping blocks respectively. According to the bearing structure, the outer diameter surface of the outer ring is provided with the oil retaining structure, the defect of insufficient bearing lubrication caused by insufficient oil supply pressure and smaller movable oil holes is overcome, and the bearing structure can enable lubricating oil to be stored in the oil holes for a long time through the oil retaining structure, so that the effect of sufficient lubrication is achieved; the structural design is ingenious.

Description

Technical Field

[0001] The utility model relates to a deep groove ball bearing, in particular to a deep groove ball bearing with an outer ring oil retaining structure, which is applied to structural equipment where medium and large bearings need to be lubricated by outer ring oil, and belongs to the technical field of bearings. Background Art

[0002] The traditional design of large bearing lubrication oil hole structure has a large outer diameter end face. When the oil supply pressure is insufficient or the oil hole is small, the lubricating oil often does not flow into the bearing in time and flows along the oil groove on the outer ring end face, which cannot ensure that the bearing is fully lubricated. Utility Model Content

[0003] In order to avoid the above-mentioned problem of insufficient bearing lubrication, the utility model provides a deep groove ball bearing with an outer ring having an oil retaining structure. The design form of the outer ring of the bearing with the oil retaining structure can ensure sufficient lubrication of the bearing.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a deep groove ball bearing with an outer ring with an oil retaining structure, comprising: an outer ring, an inner ring, a plurality of steel balls arranged between the outer ring raceway and the inner ring raceway, and a retaining frame for containing the plurality of steel balls; the inner diameter of the outer ring and the outer diameter of the inner ring are respectively provided with arc-shaped raceways, and the steel balls are rollingly matched and arranged in the raceways of the outer ring and the inner ring; the outer diameter surface of the outer ring is symmetrically provided with annular grooves, and a plurality of oil holes are opened in each annular groove from the groove opening to the groove bottom; in the annular grooves on both sides of any two adjacent oil holes, a groove oil groove is respectively opened from the outer diameter to the inner diameter direction, and the groove oil grooves are respectively connected to the oil retaining blocks;

[0005] Furthermore, the angle between the center lines of the two oil holes between the two oil retaining blocks is 60 degrees, and the center line at half of the 60-degree angle is the oil flow position line of the bearing lubricating oil;

[0006] Furthermore, the other oil holes on the annular groove except the two oil holes between the two oil retaining blocks are evenly distributed along the circumference of the outer ring;

[0007] Furthermore, the two oil baffles are symmetrically arranged with the oil flow position line as the center;

[0008] Furthermore, the angle between the center line of each oil retaining block and the oil flow position line is 45 degrees;

[0009] Furthermore, the oil baffle is welded to the groove oil groove by spot welding;

[0010] Furthermore, the size of the oil baffle is matched with the inner diameter of the groove oil groove, and the depth of the oil baffle is less than the thickness of the outer ring;

[0011] Furthermore, the annular groove has a width of 9 mm and a depth of 2 mm;

[0012] Specifically, the width of the oil baffle is 5 mm;

[0013] Furthermore, the outer diameter surface of the oil retaining block is a curved surface structure, so as to be consistent with the curvature of the outer ring of the bearing;

[0014] Furthermore, the oil baffle is made of stainless steel.

[0015] Furthermore, the retaining frame is a split structure composed of two frames, and the two frames are connected together by rivets.

[0016] The outer part of the bearing outer ring of the utility model also includes a device shell matched with the outer ring, and the device shell is also provided with an annular groove corresponding to the outer ring; through the matching, the lubricating oil can stay in the oil hole position for a long time, thereby playing a role of full lubrication.

[0017] The beneficial effects of the utility model are:

[0018] The outer diameter surface of the outer ring is provided with an oil retaining structure, which overcomes the defect of insufficient bearing lubrication caused by insufficient oil supply pressure and small oil hole. The bearing structure can store the lubricating oil in the oil hole for a long time through the oil retaining structure, thereby achieving full lubrication. The structural design is ingenious. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a structural diagram of a deep groove ball bearing with an outer ring having an oil retaining structure.

[0020] Figure 2 for Figure 1 Outer ring structure diagram.

[0021] Figure 3 for Figure 1 Cross-sectional view of the middle and outer ring structures.

[0022] In the figure, 1, outer ring, 2, inner ring, 3, steel ball, 4, annular groove, 5, oil hole, 6, groove oil groove, 7, oil baffle, 8, oil flow position line, 9, retaining frame, 10, rivet. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0024] like Figure 1-3 A deep groove ball bearing with an outer ring oil retaining structure shown in the figure comprises: an outer ring 1, an inner ring 2, a plurality of steel balls 3 arranged between the outer ring raceway and the inner ring raceway, and a retaining frame 9 for containing the plurality of steel balls; the inner diameter of the outer ring and the outer diameter of the inner ring are respectively provided with arc raceways, and the steel balls 3 are rollingly arranged in the raceways of the outer ring 1 and the inner ring 2; the outer diameter surface of the outer ring 1 is symmetrically provided with annular grooves 4, and a plurality of oil holes 5 are opened in each annular groove 4 from the groove opening to the groove bottom; in the annular grooves 4 located on both sides of any two adjacent oil holes 5, a groove oil groove 6 is respectively opened from the outer diameter to the inner diameter direction, and the groove oil grooves 6 are respectively connected to the oil retaining blocks 7;

[0025] The angle between the center lines of the two oil holes between the two oil retaining blocks 7 is 60 degrees, and the center line at half of the 60-degree angle is the bearing lubricating oil outlet position line 8;

[0026] Furthermore, the other oil holes 5 on the annular groove 4 except the two oil holes 5 between the two oil retaining blocks 7 are evenly distributed along the circumference of the outer ring;

[0027] The two oil retaining blocks 7 are symmetrically arranged with the oil flow position line 8 as the center;

[0028] The angle between the center line of each oil retaining block 7 and the oil discharge position line 8 is 45 degrees;

[0029] The oil retaining block 7 is welded to the groove oil groove 6 by spot welding;

[0030] The size of the oil retaining block 7 matches the inner diameter of the groove oil groove 7, and the depth of the oil retaining block 7 is less than the thickness of the outer ring;

[0031] Specifically, the annular groove 4 has a width of 9 mm and a depth of 2 mm;

[0032] The width of the oil baffle 7 is 5 mm;

[0033] The outer diameter surface of the oil retaining block 7 is a curved surface structure, so as to be consistent with the curvature of the outer ring of the bearing;

[0034] The oil retaining block 7 is made of stainless steel.

[0035] The retaining frame 9 is a split structure composed of two frames, and the two frames are connected together by rivets 10.

[0036] In addition to the above structure, the bearing outer ring 1 also includes an equipment housing that cooperates with the outer ring, and the equipment housing is also provided with an annular groove corresponding to the outer ring 1; through the cooperation, the lubricating oil can stay in the oil hole 5 for a long time, thereby playing a role of full lubrication.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A deep groove ball bearing with an outer ring with an oil retaining structure, characterized in that: include: The outer ring, the inner ring, and the plurality of steel balls arranged between the outer ring raceway and the inner ring raceway and a retaining frame for containing the plurality of steel balls; the inner diameter of the outer ring and the outer diameter of the inner ring are respectively provided with arc raceways, and the steel balls are rollingly matched in the raceways of the outer ring and the inner ring; the outer diameter surface of the outer ring is symmetrically provided with annular grooves, and a plurality of oil holes are opened in each annular groove from the groove mouth to the groove bottom; in the annular grooves on both sides of any two adjacent oil holes, a groove oil groove is respectively opened from the outer diameter to the inner diameter direction, and the groove oil grooves are respectively connected to the oil retaining blocks.

2. A deep groove ball bearing with an outer ring oil retaining structure according to claim 1, characterized in that: The angle between the center lines of the two oil holes between the two oil retaining blocks is 60 degrees, and the center line at half of the 60-degree angle is the oil flow position line of the bearing lubricating oil.

3. The deep groove ball bearing with an outer ring oil retaining structure according to claim 1, characterized in that: The other oil holes on the annular groove except the two oil holes between the two oil retaining blocks are evenly distributed along the circumference of the outer ring.

4. A deep groove ball bearing with an outer ring oil retaining structure according to claim 2, characterized in that: The two oil baffles are symmetrically arranged with the oil flow position line as the center.

5. The deep groove ball bearing with an outer ring oil retaining structure according to claim 4, characterized in that: The angle between the center line of each oil retaining block and the oil flow position line is 45 degrees.

6. The deep groove ball bearing with an outer ring oil retaining structure according to claim 1, characterized in that: The oil retaining block is welded to the groove oil groove by spot welding.

7. A deep groove ball bearing with an outer ring oil retaining structure according to claim 6, characterized in that: The size of the oil retaining block matches the inner diameter of the groove oil groove, and the depth of the oil retaining block is smaller than the thickness of the outer ring.

8. The deep groove ball bearing with an outer ring oil retaining structure according to claim 1, characterized in that: The width of the annular groove is 9 mm and the depth is 2 mm; the width of the oil retaining block is 5 mm.

9. The deep groove ball bearing with an outer ring oil retaining structure according to claim 1, characterized in that: The outer diameter surface of the oil retaining block is a cambered surface structure.

10. The deep groove ball bearing with an outer ring oil retaining structure according to claim 1, characterized in that: The oil retaining block is made of stainless steel.

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