A bearing cage and a rolling bearing having the same

Abstract

The utility model provides a kind of bearing retainer and rolling bearing with the bearing retainer, it is related to bearing rolling body installation technical field, including bearing and support assembly being set in bearing, two support assemblies are set on every one roller in bearing, support assembly includes two short side insertion strips and two long side insertion strips, two the short side insertion strips are set in the both ends of roller, two the long side insertion strips are set between two short side insertion strips along the direction of roller central axis, the size of rectangular frame formed by driving short side insertion frame to slide on short side insertion strip or driving long side insertion frame to slide on long side insertion strip can be adjusted, it is convenient to install in the surface of different specifications roller, and two support assemblies are connected using steel bar, i.

Description

Technical Field

[0001] This utility model relates to the field of bearing rolling element installation technology, and in particular to a bearing cage and a rolling bearing having the bearing cage. Background Technology

[0002] The bearing cage is an important component of the bearing. Its main function is to evenly separate the rolling elements (such as balls or rollers) to prevent direct contact and collision between the rolling elements, thereby reducing friction and wear.

[0003] For example, the existing bearing cage, publication number CN219809286U, includes a frame body, which comprises a top ring, a bottom ring, and several support members evenly distributed circumferentially between the top and bottom rings. Windows for installing rolling elements are formed between adjacent support members. It includes an axial limiting mechanism and a radial limiting mechanism. The radial limiting mechanism includes a plug on the top ring and a corresponding slot on the bottom ring. Upper and lower adjacent frames are axially fixed by the plug and slot engagement. The radial limiting mechanism includes a retaining spring. The plug has a corresponding slot. After the plug is inserted into the slot, its slot extends beyond the slot. The upper and lower adjacent frames are axially fixed by the retaining spring engaging with the slot.

[0004] However, existing bearing cages have a rigid structure and their dimensions cannot be adjusted. The fixed size of a rigid cage makes it impossible to adapt to different bearing sizes or application scenarios. If it is necessary to accommodate bearings of different specifications, it may be necessary to redesign and manufacture cages of different sizes. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a bearing cage and a rolling bearing having the bearing cage.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a bearing cage and a rolling bearing having the bearing cage, comprising a bearing and a support assembly disposed within the bearing. Each roller within the bearing is provided with two support assemblies. Each support assembly includes two short side inserts and two long side inserts. The two short side inserts are disposed at both ends of the roller, and the two long side inserts are disposed along the central axis of the roller and between the two short side inserts. Short side frames are inserted into the short side inserts, and long side frames are inserted into the long side inserts. The same side ends of the two short side inserts are respectively fixedly connected to the long side frames and long side insert surfaces on one side of the bearing roller, and the same side ends of the two short side frames are respectively fixedly connected to the long side frames and long side insert surfaces on the other side of the bearing roller. A steel strip is disposed between the two support assemblies on the bearing roller.

[0007] Preferably, one end of the short side insert is rotatably connected to a short side screw threaded to the inner wall of the short side insert frame, and the end face of the long side insert is rotatably connected to a long side screw threaded to the inner wall of the long side insert frame.

[0008] Preferably, both the long side insert and the long side frame are rotatably connected to a rotating roller that is in rolling connection with the bearing roller.

[0009] Preferably, the bearing has four steel bars at any roller position, and the four steel bars are distributed at the four corners of the support assembly.

[0010] Preferably, one end of each of the four steel bars is fixedly connected to the short side insert and the short side frame in one of the support assemblies, and the other end of the steel bars passes through the short side insert and the short side frame in the other support assemblies.

[0011] Preferably, a spring rod is fixedly installed on the surface of the long side insert frame and the long side insert strip in the bracket assembly on the other side of the bearing roller, and a post penetrating the surface of the steel strip is fixedly installed at the telescopic end of the spring rod.

[0012] Preferably, the bearing is provided with four chains, which are arranged in pairs on both sides of the bearing, and the two chains in each pair pass through several support assemblies on both sides of the roller.

[0013] Preferably, the chain includes several staggered chain plates, with screws extending through the overlapping ends of two adjacent chain plates, and the screws on the chain plates passing through the bracket assembly are threadedly connected to the surface of the short side insert.

[0014] Preferably, both sides of the outer ring of the bearing are threaded with outer threaded rings, and both sides of the inner ring of the bearing are threaded with inner threaded rings, and the outer and inner threaded rings are slidably connected to the chain surface.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the size of the rectangular frame formed by the bracket assembly can be adjusted by driving the short side insert frame to slide on the short side insert strip or by driving the long side insert frame to slide on the long side insert strip, which is convenient for installation on the surface of rollers of different specifications. By connecting the two bracket assemblies with steel strips, the bracket assembly can be firmly clamped on the surface of the bearing roller. The position of the roller in the bearing can be fixed by fixing the position of the bracket assembly.

[0016] 2. In this utility model, the length of the chain can be adjusted by removing the screws according to the size of the bearing and the distribution route of the rollers inside the bearing. Furthermore, when the chain passes through the support assembly of the bearing rollers, a longer screw can be replaced, and the chain can be fixed to several support assemblies by using the screw and the short side insert threaded connection. Therefore, it is convenient to fix the relative position of two adjacent support assemblies. Attached Figure Description

[0017] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a bearing cage and a rolling bearing having the bearing cage; Figure 2 This utility model proposes a bearing cage and a rolling bearing having the bearing cage. Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 This utility model provides a bearing cage and a bottom view of the internal structure of a rolling bearing having the bearing cage. Figure 4 This is a structural schematic diagram of the support assembly; Figure 5 for Figure 3 Enlarged view of point A.

[0018] Legend: 1. Bearing; 2. Roller; 3. Outer threaded ring; 4. Inner threaded ring; 5. Chain; 6. Chain plate; 7. Spring rod; 8. Insert post; 9. Steel bar; 10. Screw; 11. Short side insert; 12. Short side insert frame; 13. Long side insert; 14. Long side insert frame; 15. Long side screw; 16. Short side screw. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] like Figures 1-5As shown, a bearing cage and a rolling bearing having the bearing cage are disclosed. The bearing 1 includes a bearing 1 and a support assembly disposed within the bearing 1. Each roller within the bearing 1 is provided with two support assemblies. Each support assembly includes two short side inserts 11 and two long side inserts 13. The two short side inserts 11 are disposed at both ends of the roller, and the two long side inserts 13 are disposed along the central axis of the roller and between the two short side inserts 11. Short side frames 12 are inserted into the short side inserts 11, and long side frames 14 are inserted into the long side inserts 13. The ends of the two short side inserts 11 on the same side are respectively connected to the long side frames 14 and long side inserts 13 on one side of the roller of the bearing 1. The two short side insert frames 12 are fixedly connected to the surfaces of the long side insert frame 14 and long side insert strip 13 on the other side of the bearing 1 roller, respectively. A steel strip 9 is provided between the two support assemblies on the bearing 1 roller. In use, the size of the rectangular frame formed by the support assemblies can be adjusted by driving the short side insert frame 12 to slide on the short side insert strip 11 or driving the long side insert frame 14 to slide on the long side insert strip 13, which is convenient for installation on the surface of rollers of different specifications. By connecting the two support assemblies with the steel strip 9, the support assemblies can be firmly clamped on the surface of the bearing 1 roller. The position of the roller inside the bearing 1 is fixed by fixing the position of the support assemblies.

[0022] Regarding the structural description of the bracket assembly size adjustment: One end of the short side insert 11 is rotatably connected to a short side screw 16 threadedly connected to the inner wall of the short side frame 12. In use, by holding the short side insert 11 and the short side frame 12, rotating the short side screw 16 allows the short side frame 12 to slide. Similarly, the end face of the long side insert 13 is rotatably connected to a long side screw 15 threadedly connected to the inner wall of the long side frame 14. By holding the long side insert 13 and the long side frame 14, rotating the long side screw 15 allows the long side frame 14 to slide along the surface of the long side insert 13. Both the long side insert 13 and the long side frame 14 are rotatably connected to rollers of the bearing 1. The rotating roller 2, connected by a rolling mechanism, rotates by contacting the surface of the rollers in the bearing 1. Four steel bars 9 are positioned at any roller within the bearing 1, distributed at the four corners of the support assembly. One end of each steel bar 9 is fixedly connected to a short side insert 11 and a short side frame 12 in one side of the support assembly, while the other end of each steel bar 9 passes through the short side insert 11 and short side frame 12 in the other side of the support assembly. A spring rod 7 is fixedly installed on the surface of the long side frame 14 and long side insert 13 in the support assembly on the other side of the bearing 1 roller. A post 8, penetrating the surface of the steel bar 9, is fixedly installed at the telescopic end of the spring rod 7. Figure 4 As shown, the surface of the steel bar 9 has perforated holes. Therefore, by using the thrust of the spring rod 7, the insert 8 can be moved to pass through the perforations at different positions on the surface of the steel bar 9, and the distance between the support assemblies on both sides of the roller can be adjusted according to the diameter of the roller of the bearing 1.

[0023] Regarding the connection of the support assemblies between the rollers: Four chains 5 are installed inside the bearing 1, arranged in pairs on both sides of the bearing 1. Each pair of chains 5 passes through several support assemblies on both sides of the roller. Each chain 5 includes several staggered chain plates 6. A screw 10 is inserted through the overlapping end of two adjacent chain plates 6. The screw 10 on the chain plate 6 passing through the support assembly is threaded to the surface of the short side insert 11. Both sides of the outer ring of the bearing 1 are threaded with outer threaded rings 3, and both sides of the inner ring of the bearing 1 are threaded with inner threaded rings 4. The threaded ring 3 and the inner threaded ring 4 are slidably connected to the surface of the chain 5. The outer threaded ring 3 and the inner threaded ring 4 can cover the chain 5. The length of the chain 5 can be adjusted by removing the screw 10 according to the size of the bearing 1 and the distribution route of the rollers inside the bearing 1. When the chain 5 passes through the support assembly of the rollers of the bearing 1, the chain 5 can be fixed to several support assemblies by replacing the screw 10 with a longer one and using the screw 10 to connect with the short side insert 11. Therefore, it is convenient to fix the relative position of two adjacent support assemblies.

[0024] The working principle is as follows: Based on the size of the inner roller of bearing 1, the size of the bracket assembly is adjusted by rotating the short-side screw 16 and the long-side screw 15 so that the bracket assembly is clamped on the surface of the roller of bearing 1. The insert 8 passes through the surface of the steel strip 9 to make the two bracket assemblies tightly clamp the surface of the roller. According to the diameter of the distribution path of the roller of bearing 1, the length of the chain 5 is adjusted by the screw 10. The longer screw 10 is selected to connect the chain 5 and the bracket assembly. Several bracket assemblies can be connected as a whole through the chain 5. Finally, the outer threaded ring 3 and the inner threaded ring 4 are rotated and installed.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A bearing cage and a rolling bearing having the bearing cage, comprising a bearing (1) and a support assembly disposed within the bearing (1), characterized in that: Two support assemblies are provided on each roller inside the bearing (1). The support assembly includes two short side inserts (11) and two long side inserts (13). The two short side inserts (11) are located at both ends of the roller. The two long side inserts (13) are located along the central axis of the roller and are located between the two short side inserts (11). A short side frame (12) is inserted into the short side insert (11), and a long side frame (14) is inserted into the long side insert (13). The same side ends of the two short side inserts (11) are fixedly connected to the surface of the long side frame (14) and the long side insert (13) on one side of the roller of the bearing (1), respectively. The same side ends of the two short side inserts (12) are fixedly connected to the surface of the long side frame (14) and the long side insert (13) on the other side of the roller of the bearing (1), respectively. A steel strip (9) is provided between the two support assemblies on the roller of the bearing (1).

2. Bearing cage according to claim 1 and rolling bearing having such a bearing cage, characterized in that: One end of the short side insert (11) is rotatably connected to a short side screw (16) that is threaded to the inner wall of the short side insert frame (12), and the end face of the long side insert (13) is rotatably connected to a long side screw (15) that is threaded to the inner wall of the long side insert frame (14).

3. Bearing cage and rolling bearing having such a bearing cage according to claim 2, characterized in that: Both the long side insert (13) and the long side insert frame (14) are rotatably connected to a rotating roller (2) that is rolled and connected to the roller of the bearing (1).

4. The bearing cage according to claim 1 and a rolling bearing having the same, characterized in that: The bearing (1) has four steel bars (9) at any roller and the four steel bars (9) are distributed at the four corners of the support assembly.

5. Bearing cage and rolling bearing having such a bearing cage according to claim 4, characterized in that: One end of each of the four steel bars (9) is fixedly connected to the short side insert (11) and the short side insert frame (12) in one of the side bracket assemblies, and the other end of the steel bars (9) passes through the short side insert (11) and the short side insert frame (12) in the other side bracket assemblies.

6. Bearing cage and rolling bearing having such a bearing cage according to claim 5, characterized in that: A spring rod (7) is fixedly installed on the surface of the long side insert frame (14) and the long side insert strip (13) in the bracket assembly on the other side of the bearing (1). A post (8) penetrating the surface of the steel strip (9) is fixedly installed at the telescopic end of the spring rod (7).

7. The bearing cage according to claim 1 and a rolling bearing having the same, characterized in that: The bearing (1) is provided with four chains (5), which are arranged in pairs on both sides of the bearing (1), and the two chains (5) in each pair pass through several support assemblies on both sides of the roller.

8. Bearing cage according to claim 7 and rolling bearing having such a bearing cage, characterized in that: The chain (5) includes several staggered chain plates (6), and screws (10) are provided through the overlapping ends of two adjacent chain plates (6). The screws (10) on the chain plates (6) of the support assembly are threadedly connected to the surface of the short side insert (11).

9. The bearing cage according to claim 7 and rolling bearing having the same, characterized in that: The outer ring of the bearing (1) is threaded with an outer threaded ring (3) on both sides, and the inner ring of the bearing (1) is threaded with an inner threaded ring (4) on both sides. The outer threaded ring (3) and the inner threaded ring (4) are slidably connected to the surface of the chain (5).

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