Assembly type deep groove ball bearing

Abstract

The utility model provides an assembly type deep groove ball bearing which comprises an inner ring and an outer ring, a retainer and a plurality of rolling bodies distributed on the retainer are arranged between the inner ring and the outer ring, and a protection assembly used for shielding the retainer and the rolling bodies is further arranged between the inner ring and the outer ring. The protection assembly comprises a sealing ring, a positioning piece used for limiting the sealing ring and a clamping ring used for limiting the positioning piece. At least two limiting columns are evenly arranged in the circumferential direction of the outer ring, one end of each limiting column is arranged on the outer ring, the other end of each limiting column is provided with a limiting block, the positioning pieces and the limiting columns are arranged in a one-to-one correspondence mode, and each positioning piece is provided with a limiting groove matched with the corresponding limiting column. The sealing ring is provided with a limiting hole matched with the limiting block, and a positioning groove matched with the positioning piece is formed in the position, corresponding to the limiting hole, of the sealing ring. The assembly type deep groove ball bearing has the advantages of being simple in structure, easy to assemble and good in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearings, in particular to an assembled deep groove ball bearing. Background Art

[0002] Bearings are components that fix and reduce the load friction coefficient during mechanical transmission. Bearings are an important component in contemporary mechanical equipment. Rolling bearings include ball bearings, cylindrical roller bearings, and tapered roller bearings, etc. They are generally composed of four parts: an outer ring, an inner ring, a rolling element, and a cage. A sealing ring is usually arranged between the outer ring and the inner ring to seal and protect the lubricating grease. Deep groove ball bearings are a type of high-speed bearings. In the prior art, deep groove ball bearings are divided into sealed and open types. Sealed deep groove ball bearings have sealing rings stamped on both sides. However, deep groove ball bearings are often affected by high-speed operation and external stress impact, which causes the sealing ring to peel off, thereby causing the bearing seal to fail. However, reinstalling the sealing ring requires re-stamping it. The entire sealing ring installation process is relatively troublesome, and re-stamping it will cause a secondary impact on the bearing, which will cause the bearing to become fragile and significantly reduce the bearing service life.

[0003] The Chinese utility model patent with the existing application number 202321200243.0 provides a fast disassembly and assembly high-speed bearing, including an outer ring, an inner ring and a roller group, the outer ring is sleeved on the inner ring, a sealing ring is arranged on both sides of the outer ring, a plurality of positioning holes are arranged circumferentially on both sides of the outer ring wall, each positioning hole is attached with a positioning sheet, each positioning sheet is connected with the inner side wall of the adjacent sealing ring, a first thread groove is partially opened on the inner peripheral wall of each positioning hole, a second thread groove is opened on the inner wall of each positioning sheet, each first thread groove is combined with the adjacent second thread groove to form a connecting thread groove, a connecting hole is opened on the sealing ring, each connecting hole is arranged close to the corresponding and adjacent positioning sheet, and a connecting rod for threading with the connecting thread groove is arranged in each connecting hole. Although the above-mentioned bearing realizes the assembly of the sealing ring, since it is still assembled by threaded connection, each connecting rod needs to be screwed during the assembly process, which is not conducive to reducing the difficulty of operation of the operator, and when the sealing ring needs to be replaced, there is still a problem of low assembly efficiency. Utility Model Content

[0004] In view of this, the utility model aims to provide an assembled deep groove ball bearing to solve the problem that the existing assembled bearings are inconvenient to assemble and affect the assembly efficiency.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] An assembled deep groove ball bearing comprises an inner ring and an outer ring, a cage and a plurality of rolling bodies distributed on the cage are arranged between the inner ring and the outer ring, and a protective component for shielding the cage and the rolling bodies is also arranged between the inner ring and the outer ring;

[0007] The protective component includes a sealing ring, a positioning piece for limiting the sealing ring, and a retaining ring for limiting the positioning piece; at least two limiting posts are evenly arranged around the outer ring, one end of each limiting post is arranged on the outer ring, and the other end is provided with a limiting block, the positioning pieces are arranged one-to-one with the limiting posts, and each positioning piece is provided with a limiting groove that cooperates with the limiting post; the sealing ring is provided with a limiting hole that cooperates with the limiting block, and a positioning groove that cooperates with the positioning piece is provided at a position corresponding to the limiting hole on the sealing ring, the positioning groove is connected with the limiting hole, and the retaining ring is detachably installed on the sealing ring to achieve shielding of the opening of the positioning groove.

[0008] Furthermore, the sealing ring is provided with an annular groove for installing a clamping ring, and the annular groove is communicated with the positioning groove.

[0009] Furthermore, the positioning groove is arranged corresponding to the middle part of the sealing ring.

[0010] Furthermore, one end of the limit block is arranged on the limit column, and the other end is provided with a tapered end portion for easy insertion into the limit hole.

[0011] Furthermore, the inner side of the clamping ring is provided with a curved surface or a conical end surface.

[0012] Furthermore, the limiting groove is arranged corresponding to the middle part of the positioning piece.

[0013] Compared with the prior art, the assembled deep groove ball bearing described in the utility model has the following advantages:

[0014] The utility model discloses an assembled deep groove ball bearing, which has the advantages of simple structure, easy assembly and good stability. By inserting the positioning piece into the positioning groove of the sealing ring and limiting the positioning piece by installing the retaining ring, under the tightening and limiting of the limiting block, the positioning piece can continuously and stably limit the sealing ring to prevent the sealing ring from falling off the outer ring. The positioning piece can not only ensure the stability of the sealing ring on the outer ring, but also improve the shielding and sealing effect of the sealing ring by supporting the inner wall of the positioning groove. In addition, the positioning piece can also play a good skeleton support role for the sealing ring, which is beneficial to improve the structural strength and stability of the sealing ring, avoid deformation of the sealing ring during the use of the bearing, and also help to improve the sealing performance of the sealing ring during the use of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0016] Figure 1 This is a structural schematic diagram of an assembled deep groove ball bearing according to an embodiment of the utility model;

[0017] Figure 2 for Figure 1 Exploded diagram of

[0018] Figure 3 This is a schematic diagram of the structure of the middle and outer rings of an assembled deep groove ball bearing according to an embodiment of the utility model;

[0019] Figure 4 This is a schematic structural diagram of a snap ring in an assembled deep groove ball bearing according to an embodiment of the utility model;

[0020] Figure 5 It is a schematic structural diagram of a sealing ring in an assembled deep groove ball bearing according to an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Outer ring; 2. Inner ring; 3. Sealing ring; 4. Limit block; 5. Snap ring; 6. Positioning piece; 7. Limit groove; 8. Limit hole; 9. Limit column; 10. Cage; 11. Positioning groove; 12. Annular snap groove. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] An assembled deep groove ball bearing, such as Figures 1 to 5 As shown, it includes an inner ring 2 and an outer ring 1, a retaining frame 10 and a plurality of rolling bodies distributed on the retaining frame 10 are arranged between the inner ring 2 and the outer ring 1, and a protective component for shielding the retaining frame 10 and the rolling bodies is also arranged between the inner ring 2 and the outer ring 1.

[0028] The above-mentioned protective component includes a sealing ring 3, a positioning piece 6 for limiting the sealing ring 3, and a retaining ring 5 for limiting the positioning piece 6; at least two limiting columns 9 are evenly arranged in the circumference of the outer ring 1, and each limiting column 9 is arranged on the outer ring 1 at one end and a limiting block 4 is arranged at the other end. The positioning pieces 6 are arranged one by one with the limiting columns 9, and each positioning piece 6 is provided with a limiting groove 7 that cooperates with the limiting column 9, and there is an accommodating gap between the limiting block 4 and the outer ring 1 for accommodating the positioning piece 6; the sealing ring 3 is provided with a limiting hole 8 that cooperates with the limiting block 4, and a positioning groove 11 that cooperates with the positioning piece 6 is provided at a position corresponding to the limiting hole 8 on the sealing ring 3, and the positioning groove 11 is connected with the limiting hole 8, and the retaining ring 5 is detachably installed on the sealing ring 3 to achieve shielding of the opening of the positioning groove 11.

[0029] Exemplarily, the limiting column 9 can be fixed on the outer ring 1, and the limiting column 9 and the outer ring 1 can be connected by a thread, for example, a thread groove is provided on the outer ring 1, and an external thread matching the thread groove is provided on the limiting column 9. Those skilled in the art can also choose other ways to install and fix the limiting column 9 according to actual needs to achieve a stable setting of the limiting column 9 on the outer ring 1, which will not be repeated here.

[0030] In actual application, the limit block 4 and the limit column 9 can be integrally formed to ensure the structural strength of the connection between the limit block 4 and the limit column 9. When the sealing ring 3 needs to be assembled, the operator can first align the limit hole 8 on the sealing ring 3 with the limit block 4 and then assemble it; then insert the positioning piece 6 into the positioning groove 11 of the sealing ring 3, and make the limit groove 7 on the positioning piece 6 cooperate with the limit column 9; finally, the operator only needs to install the snap ring 5 on the sealing ring 3, and use the snap ring 5 to block the opening of the column positioning groove 11, so as to achieve the limit fixation of the positioning piece 6. At this time, with the cooperation of the positioning piece 6 and the limit block 4, the sealing ring 3 will not fall off the outer ring 1, so that the sealing ring 3 can be conveniently assembled, the operation is simpler, and it is conducive to improving the assembly efficiency of the bearing.

[0031] Optionally, the sealing ring 3 is provided with an annular groove 12 for installing the snap ring 5, and the annular groove 12 is connected to the positioning groove 11. Exemplarily, the snap ring 5 can be a closed snap ring 5, or a snap ring 5 with an opening. Those skilled in the art can use a suitable snap ring 5 according to actual needs, which will not be described here. By cooperating with the snap ring 5 and the annular groove 12, the snap ring 5 can be prevented from protruding from the side of the sealing ring 3, preventing the snap ring 5 from moving or being damaged, which is beneficial to improving the stability of the snap ring 5 during the use of the bearing, thereby ensuring the sealing effect of the sealing ring 3 on the gap between the outer ring 1 and the inner ring 2.

[0032] In actual application, the sealing ring 3 can be made of rubber or silicone. The outer diameter of the sealing ring 3 needs to be less than or equal to the outer diameter of the outer ring 1, and the inner diameter of the sealing ring 3 needs to be greater than the inner diameter of the inner ring 2 and smaller than the outer diameter of the inner ring 2 to achieve the shielding of the gap between the outer ring 1 and the inner ring 2.

[0033] Optionally, the inner side of the snap ring 5 is provided with an arc surface or a conical end surface. By providing an arc surface or a conical end surface on the inner side of the snap ring 5, it is convenient for the snap ring 5 to be assembled into the annular groove 12 through the edge of the sealing ring 3, which is conducive to reducing the difficulty of assembling and disassembling the snap ring 5 and facilitating the operator to assemble the positioning piece 6.

[0034] Optionally, the positioning groove 11 is set corresponding to the middle of the sealing ring 3. By setting the positioning groove 11 corresponding to the middle of the sealing ring 3, the positioning piece 6 is inserted into the positioning groove 11 to cooperate, and under the top limit of the limit block 4, the positioning piece 6 can also push the sealing ring 3 toward the side of the outer ring 1 to better fit the outer ring 1 to achieve sealing, which is not only conducive to improving the stability of the positioning piece 6 on the sealing ring 3, but also conducive to improving the shielding and sealing effect of the sealing ring 3. In addition, the positioning piece 6 can also play a good skeleton support role for the sealing ring 3, which is conducive to improving the structural strength and stability of the sealing ring 3, avoiding deformation of the sealing ring 3 during the use of the bearing, and also conducive to improving the sealing performance of the sealing ring 3 during the use of the bearing.

[0035] Optionally, one end of the limit block 4 is arranged on the limit column 9, and the other end is provided with a tapered end portion for easy insertion into the limit hole 8. By providing the tapered end portion on the limit block 4, it is convenient for the limit block 4 to be aligned and assembled with the limit hole 8 on the sealing ring 3.

[0036] Optionally, the limiting groove 7 is arranged corresponding to the middle of the positioning piece 6. By arranging the limiting groove 7 corresponding to the middle of the positioning piece 6, it is beneficial to increase the contact area between the positioning piece 6 and the limiting block 4, thereby ensuring that the limiting block 4 can continuously and stably limit the positioning piece 6.

[0037] The utility model discloses an assembled deep groove ball bearing, which has the advantages of simple structure, easy assembly and good stability. By inserting the positioning piece into the positioning groove of the sealing ring, under the top tightening limit of the limit block, the positioning piece can push the sealing ring toward the outer ring side to better fit the outer ring to achieve sealing, which is not only conducive to improving the stability of the positioning piece on the sealing ring, but also conducive to improving the shielding and sealing effect of the sealing ring. In addition, the positioning piece can also play a good skeleton support role for the sealing ring, which is conducive to improving the structural strength and stability of the sealing ring, avoiding deformation of the sealing ring during the use of the bearing, and also conducive to improving the sealing performance of the sealing ring during the use of the bearing.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembled deep groove ball bearing, comprising an inner ring (2) and an outer ring (1), a retaining frame (10) and a plurality of rolling bodies distributed on the retaining frame (10) are arranged between the inner ring (2) and the outer ring (1), and a protective component for shielding the retaining frame (10) and the rolling bodies is also arranged between the inner ring (2) and the outer ring (1), characterized in that: The protective component comprises a sealing ring (3), a positioning piece (6) for limiting the sealing ring (3), and a snap ring (5) for limiting the positioning piece (6); at least two limiting posts (9) are evenly arranged around the outer ring (1); one end of each limiting post (9) is arranged on the outer ring (1) and the other end is provided with a limiting block (4); the positioning pieces (6) and the limiting posts (9) are arranged one-to-one correspondingly; each positioning piece (6) is provided with a limiting groove (7) that cooperates with the limiting post (9); a limiting hole (8) that cooperates with the limiting block (4) is provided on the sealing ring (3); a positioning groove (11) that cooperates with the positioning piece (6) is provided at a position corresponding to the limiting hole (8) on the sealing ring (3); the positioning groove (11) is connected with the limiting hole (8); the snap ring (5) is detachably mounted on the sealing ring (3) to cover the opening of the positioning groove (11).

2. The assembled deep groove ball bearing according to claim 1, characterized in that: The sealing ring (3) is provided with an annular groove (12) for mounting a snap ring (5), and the annular groove (12) is communicated with the positioning groove (11).

3. An assembled deep groove ball bearing according to claim 1 or 2, characterized in that: The positioning groove (11) is arranged corresponding to the middle part of the sealing ring (3).

4. The assembled deep groove ball bearing according to claim 1, characterized in that: One end of the limit block (4) is arranged on the limit column (9), and the other end is provided with a tapered end portion for easy insertion into the limit hole (8).

5. The assembled deep groove ball bearing according to claim 1, characterized in that: The inner side of the clamping ring (5) is provided with a curved surface or a conical end surface.

6. The assembled deep groove ball bearing according to claim 1, characterized in that: The limiting groove (7) is arranged corresponding to the middle part of the positioning piece (6).

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