Bearing spacer, retainer and bearing

Abstract

The application relates to the technical field of retainers, in particular to a bearing spacer, a retainer and a bearing, which comprise a longitudinal column, a first transverse beam and a second transverse beam, the longitudinal column is provided with two opposite first inner sides and second inner sides, the first inner side and the second inner side are both provided with lubricating grooves for accommodating lubricating medium; the first transverse beam is arranged at one end of the longitudinal column, the two ends of the first transverse beam protrude from the longitudinal column, and the two ends of the first transverse beam are both provided with first arc-shaped grooves for avoiding recesses of one end surface of a roller; the second transverse beam is arranged at the other end of the longitudinal column, the two ends of the second transverse beam protrude from the longitudinal column, and the two ends of the second transverse beam are both provided with second arc-shaped grooves for avoiding recesses of the other end surface of the roller. The application has low manufacturing difficulty, good lubricating effect, and smooth and stable work.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of retainer, in particular to a bearing spacer, a bearing retainer and a bearing. BACKGROUND

[0002] The tapered roller bearing retainer is divided into a stamped retainer or a brass solid retainer, both of which are metal structures, and the lubrication of the bearing is realized by storing lubricant through an oil groove. In harsh working conditions, the retainer is required to have higher precision, and sometimes it needs to be treated with phosphating or blackening, which has a long processing cycle and lacks certain detection standards, so it is difficult to guarantee the quality. SUMMARY

[0003] In view of the defects of the prior art, the present application provides a bearing spacer, a bearing retainer and a bearing, which has lower manufacturing difficulty, better lubrication effect and more smooth and stable work.

[0004] In order to achieve the above purpose, the technical scheme provided by the present application is a bearing spacer, which comprises a longitudinal column, a first transverse beam and a second transverse beam, the longitudinal column has two opposite first inner sides and second inner sides, the first inner side and the second inner side are provided with lubricating grooves, the lubricating grooves are used for accommodating lubricating medium, the first transverse beam is arranged at one end of the longitudinal column, the two ends of the first transverse beam protrude from the longitudinal column, and the two ends of the first transverse beam are provided with first arc-shaped grooves, the first arc-shaped grooves are used for avoiding the recess of one end surface of the roller, the second transverse beam is arranged at the other end of the longitudinal column, the two ends of the second transverse beam protrude from the longitudinal column, and the two ends of the second transverse beam are provided with second arc-shaped grooves, the second arc-shaped grooves are used for avoiding the recess of the other end surface of the roller.

[0005] Further, the lubricating groove comprises a serpentine groove arranged on the first inner side and the second inner side.

[0006] Further, the lubricating groove is a rectangular groove.

[0007] Further, the surface of the first transverse beam facing the roller is a first spherical base surface, the first spherical base surface is provided with a first lubricating groove extending from the first arc-shaped groove to the longitudinal column, and the first spherical base surface not provided with the first lubricating groove is provided with a first end surface lubricating groove; the surface of the second transverse beam facing the roller is a second spherical base surface, the second spherical base surface is provided with a second lubricating groove extending from the second arc-shaped groove to the longitudinal column, and the second spherical base surface not provided with the second lubricating groove is provided with a second end surface lubricating groove.

[0008] Further, the diameter of the first spherical surface is greater than the diameter of the spherical surface of the end of the roller facing the first spherical surface; and the diameter of the second spherical surface is greater than the diameter of the spherical surface of the end of the roller facing the second spherical surface.

[0009] Further, the first surface and the second surface of the longitudinal column, which are oppositely arranged in the bearing radial direction, are both circular arc curved surfaces.

[0010] Further, the third surface and the fourth surface of the first transverse beam, which are oppositely arranged in the bearing radial direction, are both circular arc curved surfaces.

[0011] Further, the fifth surface and the sixth surface of the second transverse beam, which are oppositely arranged in the bearing radial direction, are both circular arc curved surfaces.

[0012] A cage for a bearing, comprising the cage for a bearing according to any one of the preceding embodiments.

[0013] A bearing, comprising the cage for a bearing according to the preceding embodiment.

[0014] The first inner side surface and the second inner side surface of the longitudinal column are both provided with lubricating grooves, which can well lubricate the surface of the roller, so that the bearing works more smoothly and stably; the first arc-shaped grooves are arranged at the two ends of the first transverse beam of the cage for a bearing, and the second arc-shaped grooves are arranged at the two ends of the second transverse beam, which not only reduces the weight, but also does not block the recesses on the end surface of the roller, and further optimizes the lubricating effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a structural schematic view of a cage for a bearing in an embodiment of the present application;

[0016] Figure 2 FIG. 2 is a structural schematic view of a second inner side surface (flat) in an embodiment of the present application;

[0017] Figure 3 FIG. 3 is a structural schematic view of a second inner side surface (flat) in another embodiment of the present application;

[0018] Figure 4 FIG. 4 is a top view of a cage for a bearing in an embodiment of the present application;

[0019] Figure 5 FIG. 5 is a top view of a cage for a bearing and a roller cooperating with each other in an embodiment of the present application;

[0020] Figure 6 FIG. 6 is a structural schematic view of a bearing in an embodiment of the present application;

[0021] Figure 7 FIG. 7 is a structural schematic view of a cage for a bearing in another embodiment of the present application;

[0022] Figure 8 is a top view of the spacer block for bearing in another embodiment of the present application;

[0023] Figure 9 is a partial enlarged view of the intersection position of the longitudinal column and the second transverse beam in another embodiment of the present application;

[0024] Figure 10 is a partial structural schematic view of the retainer for bearing in an embodiment of the present application;

[0025] Fig. 10, spacer block for bearing,

[0026] 100, longitudinal column, 110, first inner side surface, 120, second inner side surface, 130, lubricating groove,

[0027] 200, first transverse beam, 210, first arc-shaped groove, 220, third surface, 230, fourth surface, 240, first spherical base surface, 241, first lubricating groove, 242, first end surface lubricating groove,

[0028] 300, second transverse beam, 310, second arc-shaped groove, 320, second spherical base surface, 321, second lubricating groove, 322, second end surface lubricating groove,

[0029] 20, roller,

[0030] 21, concave hole,

[0031] 30, inner ring,

[0032] 40, outer ring. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0034] Referring to Figure 1 , a structural schematic view of the spacer block 10 for bearing in an embodiment of the present application is shown, which includes a longitudinal column 100, a first transverse beam 200 and a second transverse beam 300, and the first transverse beam 200 and the second transverse beam 300 are respectively arranged at both ends of the longitudinal column 100, as Figure 1As shown, a H-shaped structure is formed, and the two adjacent bearing isolation blocks 10 form a pocket for mounting the roller 20, and the cage is composed of a plurality of bearing isolation blocks 10 which are not directly connected to each other.

[0035] With reference to Figure 1 , Figure 2 and Figure 5 , the longitudinal column 100 has two opposite first inner side 110 and second inner side 120, the first inner side 110 and the second inner side 120 are provided with lubricating grooves 130 for accommodating lubricating medium, which includes but is not limited to lubricating oil. The first transverse beam 200 is provided at one end of the longitudinal column 100, the two ends of the first transverse beam 200 protrude from the longitudinal column 10, and the two ends of the first transverse beam 200 are provided with first arc-shaped grooves 210 for avoiding the recess 21 of one end face of the roller 20; the second transverse beam 300 is provided at the other end of the longitudinal column 100, the two ends of the second transverse beam 300 protrude from the longitudinal column 100, and the two ends of the second transverse beam 300 are provided with second arc-shaped grooves 310 for avoiding the recess of the other end face of the roller 20.

[0036] It should be noted that the above-mentioned bearing isolation block 10 can be made of engineering plastic material, and a set of cages is made of the same mold, which greatly reduces the processing difficulty. In addition, the first inner side 110 and the second inner side 120 of the longitudinal column 100 are provided with lubricating grooves 130, which can well lubricate the surface of the roller, and further make the bearing work more smoothly and stably. The end face of the roller 20 is a large spherical base, that is, a spherical surface with a large radius, the upper and lower end faces of the bearing isolation block 10 protrude a section, and are provided with first arc-shaped grooves 210 and second arc-shaped grooves 310, the circular arc edges of the first arc-shaped grooves 210 and the second arc-shaped grooves 310 cooperate with the end face of the roller 20 to limit the displacement of the cage along the spherical surface direction of the roller 20, which can avoid the displacement of the bearing isolation block 10 towards the inner ring 30 or the outer ring 40, and prevent the interference and collision between the bearing isolation block 10 and the inner and outer rings. Furthermore, referring to Figure 4 , the two ends of the first transverse beam 200 of the bearing isolation block 10 are provided with first arc-shaped grooves 210, and the two ends of the second transverse beam 300 are provided with second arc-shaped grooves 310, which not only reduces the weight, but also does not block the recess 21 of the end face of the roller 20. The end face of the roller 20 is provided with a recess 21, which can retain a part of the lubricant, which is conducive to lubrication, and also facilitates the clamping of the roller 20 during processing.

[0037] Referring to Figure 2 , in an embodiment, the lubricating grooves 130 include serpentine grooves provided in the first inner side 110 and the second inner side 120, which is more conducive to the flow of lubricating grease / lubricant.

[0038] Referring to Figure 3 In another embodiment, the lubricating grooves 130 are distributed in an array on the first inner side surface 110 and the second inner side surface 120. In this way, the lubricating effect can be further improved. Further, in an embodiment, the lubricating grooves 130 are rectangular grooves. It should be noted that the lubricating grooves 130 can also be circular pits distributed in an array as shown in Figure 6 The array distribution on the first inner side surface 110 and the second inner side surface 120 can be uniform, so as to achieve a more uniform lubricating effect and further prolong the service life of the bearing.

[0039] Referring to Figure 7 and Figure 8 Further, in an embodiment, the surface of the first transverse beam 200 facing the roller is a first ball base surface 240, the first ball base surface 240 is provided with a first lubricating groove 241 extending from the first arc-shaped groove 210 to the longitudinal column 100, and the first ball base surface 240 not provided with the first lubricating groove 241 is provided with a first end surface lubricating groove 242; the surface of the second transverse beam 300 facing the roller is a second ball base surface 320, the second ball base surface 320 is provided with a second lubricating groove 321 extending from the second arc-shaped groove 310 to the longitudinal column 100, and the second ball base surface 320 not provided with the second lubricating groove 321 is provided with a second end surface lubricating groove 322.

[0040] It should be noted that the cross-sectional shape of the first lubricating groove 241 and the second lubricating groove 321 is not limited, and can be a rectangular groove or a semicircular groove, as long as it can provide a channel for the flow of lubricating grease. In addition, the shape of the first end surface lubricating groove 242 and the second end surface lubricating groove 322 is not limited, and can be an array of grooves as shown in Figure 7 or a serpentine groove as shown in Figure 8 When the grooves are arranged in an array, Figure 7 the shape in can be circular or rectangular, and can be set as needed. The density of the array distribution can also be set as needed.

[0041] Referring to Figure 9 In an embodiment, the first end surface lubricating groove 242 and the second end surface lubricating groove 322 are serpentine grooves, and in cooperation therewith, the lubricating grooves 130 include serpentine grooves provided on the first inner side surface 110 and the second inner side surface 120, and the two are one-to-one corresponding and penetrating each other. In this scheme, the lubricating grease forms a number of loops surrounding the roller, which is more conducive to the lubrication of the roller.

[0042] Preferably, the diameter of the first spherical surface 240 is greater than the diameter of the spherical surface of the end of the roller facing the first spherical surface 240; the diameter of the second spherical surface 320 is greater than the diameter of the spherical surface of the end of the roller facing the second spherical surface 320.

[0043] It should be noted that the contact surface of the cage and the spherical surface of the end of the roller 20 is a spherical surface slightly larger than the spherical surface of the roller 20. The spherical surface of the cage limits the position of the roller to a certain extent, and at the same time, the lubricating grease / lubricant can enter the lubrication groove of the spherical surface of the cage from the gap between the spherical surface of the roller 20 and the spherical surface of the cage, that is, the first lubrication groove 241 and the second lubrication groove 321, and then enter the lubrication groove 130 on the longitudinal column 100 along the channel of the lubrication groove of the spherical surface of the cage. At the same time, the first spherical surface 240 and the second spherical surface 320 also have grooves, that is, the first end surface lubrication groove 242 and the second end surface lubrication groove 322, which can enhance the lubrication of the spherical surface. In this way, the lubricating grease / lubricant inside the recess 21 on the upper end surface around the roller 20 serves as the source, enters the lubrication groove 130 on the longitudinal column 100 along the channel of the lubrication groove of the spherical surface of the cage, and penetrates the channel of the lower lubrication groove of the spherical surface of the cage, until the recess 21 on the lower end surface of the roller 20, forming a lubrication environment around the spherical cage, and further making the bearing run more smoothly.

[0044] As shown in Figure 5 and Figure 7 , in an embodiment, the first surface and the second surface of the longitudinal column 100 are both circular arc curved surfaces in the radial direction of the bearing.

[0045] As shown in Figure 5 and Figure 7 , in an embodiment, the third surface 220 and the fourth surface 230 of the first transverse beam 200 are both circular arc curved surfaces in the radial direction of the bearing.

[0046] As shown in Figure 5 and Figure 7 , in an embodiment, the fifth surface and the sixth surface of the second transverse beam 300 are both circular arc curved surfaces in the radial direction of the bearing.

[0047] On the basis of the above-mentioned embodiments, referring to Figure 4 , the first surface, the third surface 220 and the fifth surface are coplanar, and at the same time, the second surface, the fourth surface 230 and the sixth surface are coplanar. The inner and outer ring directions of the end surface of the bearing spacer 10 are curved surfaces, and there is a gap between the bearing inner and outer rings, which will not be in contact. After the roller is clamped by the spacer type cage, displacement is also limited, making the bearing run more stably.

[0048] Referring to Figure 10The bearing cage comprises the spacer block 10 according to any one of the above, and no other connection relationship exists between adjacent spacer blocks, and only one roller 20 is arranged. In order to show the position relationship between adjacent spacer blocks, the roller 20 is not shown in the figure. For understanding, please refer to the above description. Figure 5 The bearing cage is convenient to process and manufacture. The same mold can be used to manufacture multiple bearing spacer blocks 10, and then the bearing cage is manufactured after assembly.

[0049] Referring to Figure 6 The bearing comprises the bearing cage, the inner ring 30, the multiple rollers 20 and the outer ring 40. The bearing is convenient to process and manufacture. The same mold can be used to manufacture multiple bearing spacer blocks 10, and then the bearing is manufactured after assembly.

[0050] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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 devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0051] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot 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" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0052] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In the present application, unless otherwise explicitly specified and limited, a first feature is "on", "over", or "above" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact with a medium in between. Also, the first feature "over", "above", and "on" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature "under", "below", and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature. It is noted that when an element is referred to as being "fixed" or "attached" to another element, it can be directly on the other element or intervening elements can also be present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used herein are used for explanation only and are not meant to be limiting.

Claims

1. A spacer block for bearings, characterized by: Comprising a longitudinal column having two opposite first and second inner sides, each of the first and second inner sides being provided with a lubricating groove for accommodating a lubricating medium; a first transverse beam arranged at one end of the longitudinal column, both ends of the first transverse beam protruding from the longitudinal column, and each of the two ends of the first transverse beam being provided with a first arc-shaped groove for avoiding a recess of one end surface of a roller; and a second transverse beam arranged at the other end of the longitudinal column, both ends of the second transverse beam protruding from the longitudinal column, and each of the two ends of the second transverse beam being provided with a second arc-shaped groove for avoiding a recess of the other end surface of the roller; a surface of the first transverse beam facing the roller is a first spherical base surface, the first spherical base surface being provided with a first lubricating groove extending from the first arc-shaped groove to the longitudinal column, and the first spherical base surface not provided with the first lubricating groove being provided with a first end surface lubricating groove; a surface of the second transverse beam facing the roller is a second spherical base surface, the second spherical base surface being provided with a second lubricating groove extending from the second arc-shaped groove to the longitudinal column, and the second spherical base surface not provided with the second lubricating groove being provided with a second end surface lubricating groove; the lubricating groove comprises a serpentine groove provided in the first and second inner sides; the first and second end surface lubricating grooves are serpentine grooves, one end of the lubricating groove and the first end surface lubricating groove being mutually continuous, and the other end of the lubricating groove and the second end surface lubricating groove being mutually continuous.

2. The spacer block for bearings according to claim 1, characterized in that: a diameter of the first spherical base surface is greater than a diameter of a spherical base surface of an end of the roller facing the first spherical base surface; and a diameter of the second spherical base surface is greater than a diameter of a spherical base surface of an end of the roller facing the second spherical base surface.

3. The spacer block for bearings according to claim 1 or 2, characterized in that: both the first and second surfaces of the longitudinal column arranged opposite in a bearing radial direction are circular arc curved surfaces.

4. The spacer block for bearings according to claim 1 or 2, characterized in that: both the third and fourth surfaces of the first transverse beam arranged opposite in a bearing radial direction are circular arc curved surfaces.

5. The spacer block for bearings according to claim 1 or 2, characterized in that: both the fifth and sixth surfaces of the second transverse beam arranged opposite in a bearing radial direction are circular arc curved surfaces.

6. A cage for a bearing, characterized by: a bearing cage comprising the spacer block according to claim 1 or 2.

7. Bearing, characterized in that: a bearing cage comprising the spacer block according to claim 6.

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