Plastic self-locking cylindrical bearing retainer

Abstract

The utility model discloses a plastic self-locking cylindrical bearing retainer which comprises an annular frame body, the bottom of the annular frame body is fixedly connected with an edge beam, a pocket hole is formed in the edge beam, one side of the inner wall of the pocket hole is fixedly connected with a reinforcing rib, one side of an elastic piece is fixedly connected with an elastic hemisphere protruding block, and the other side of the elastic piece is fixedly connected with a locking piece. An oil groove is formed in the side surface of the edge beam, and a locking frame body is movably connected to the bottom of the edge beam; according to the self-locking roller bearing, the cylindrical roller can be tightly clasped through tiny elastic deformation of the elastic hemispherical protruding blocks, the self-locking function is achieved, the risk that the roller falls off due to instability in the running process is effectively avoided, the running stability of the bearing is remarkably improved, the elastic pieces provide necessary elasticity and restoring force, and the service life of the bearing is prolonged. The self-locking function is still reliable in long-term use, and the structural strength of the retainer is further improved by adding the reinforcing ribs, so that the locking force is enhanced, and bearing damage and potential safety hazards are avoided.

Description

Technical Field

[0001] This utility model relates to the field of bearing cage technology, and in particular to a plastic self-locking cylindrical bearing cage. Background Technology

[0002] A cylindrical bearing cage, also known as a bearing retainer, is a bearing component that partially encloses all or part of the rolling elements and moves with them. Its main function is to isolate the rolling elements, and it usually also guides the rolling elements and holds them within the bearing. Cylindrical bearing cages are made of a variety of materials, mainly including stamped steel, machined steel, stamped brass, machined brass, and polymer materials.

[0003] The existing device directly places the cylindrical roller into the pocket and then uses a buckle and locking frame to prevent the cylindrical roller from falling off. The roller may become unstable or even fall off during operation, which will cause bearing damage and safety hazards. At the same time, the existing device cannot withstand large loads and impacts, which will cause the cage to deform or be damaged.

[0004] Therefore, we provide a plastic self-locking cylindrical bearing cage. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a plastic self-locking cylindrical bearing cage that achieves the self-locking function.

[0006] In view of this, the present invention provides a plastic self-locking cylindrical bearing cage, comprising an annular frame, a side beam fixedly connected to the bottom of the annular frame, a pocket formed inside the side beam, a reinforcing rib fixedly connected to one side of the inner wall of the pocket, an elastic sheet fixedly connected to one side of the reinforcing rib, an elastic hemispherical protrusion fixedly connected to one side of the elastic sheet, and an oil groove formed on the side surface of the side beam. Through the slight elastic deformation of the elastic hemispherical protrusion, the cylindrical roller can be tightly held, realizing the self-locking function, effectively avoiding the risk of the roller falling off due to instability during operation, and significantly improving the operating stability of the bearing. The elastic sheet provides the necessary elasticity and restoring force to ensure that the self-locking function remains reliable during long-term use. The addition of the reinforcing rib further improves the structural strength of the cage, thereby enhancing the locking force and avoiding bearing damage and safety hazards.

[0007] Preferably, a locking frame is movably connected to the bottom of the side beam, a segment is fixedly connected to the top of the locking frame, and a threaded hole is provided at the bottom of the side beam.

[0008] Preferably, the locking frame has a second threaded hole inside, and a threaded rod is threadedly connected inside the second threaded hole. A knob is fixedly connected to the bottom of the threaded rod.

[0009] Preferably, the diameter of the annular frame is the same as the diameter of the side beam, the pockets are arranged in a ring array, and the oil grooves are arranged in a ring array.

[0010] Preferably, the reinforcing ribs are arranged in a ring array, the elastic sheets are arranged in a ring array, and the elastic hemispherical protrusions are arranged in a ring array. By installing the reinforcing ribs, the load-bearing capacity of the cage is improved, which enables the bearing to withstand greater loads and impacts, reducing the risk of cage deformation or damage due to excessive loads. The oil groove design allows the lubricating oil to be evenly distributed between the rollers and the pockets, reducing friction and wear. This not only improves the operating efficiency of the bearing but also extends its service life.

[0011] Preferably, the diameter of the annular frame is the same as the diameter of the locking frame, and the diameter of the locking frame is the same as the diameter of the side beam.

[0012] Preferably, the first threaded hole and the second threaded hole are the same size and are symmetrical vertically, and the threaded rod is threadedly connected to the first threaded hole.

[0013] Compared with the prior art, this utility model provides a plastic self-locking cylindrical bearing cage, which has the following advantages:

[0014] 1. This utility model, through the minute elastic deformation of the elastic hemispherical protrusion, can tightly hold the cylindrical roller, realizing a self-locking function, effectively avoiding the risk of the roller falling off due to instability during operation, significantly improving the running stability of the bearing. The elastic sheet provides the necessary elasticity and restoring force to ensure that the self-locking function remains reliable in long-term use. The addition of reinforcing ribs further improves the structural strength of the cage, thereby enhancing the locking force and avoiding bearing damage and safety hazards.

[0015] 2. This utility model improves the load-bearing capacity of the cage by installing reinforcing ribs, which enables the bearing to withstand greater loads and impacts, reducing the risk of cage deformation or damage due to excessive load. The oil groove design allows the lubricating oil to be evenly distributed between the rollers and the pockets, reducing friction and wear. This not only improves the operating efficiency of the bearing, but also extends its service life.

[0016] 3. In this invention, the arc surface of the elastic hemispherical protrusion contacts the cylindrical roller, allowing the elastic hemispherical protrusion to better adapt to the shape of the cylindrical roller, thereby ensuring a more stable contact between the two. This stability helps reduce noise and vibration caused by wobbling or instability during roller operation, improves the overall performance of the bearing, and helps reduce friction and wear between the roller and the protrusion.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a plastic self-locking cylindrical bearing cage proposed in this utility model;

[0019] Figure 2 This is a three-dimensional unfolded structural diagram of a plastic self-locking cylindrical bearing cage proposed in this utility model;

[0020] Figure 3 This utility model proposes a plastic self-locking cylindrical bearing cage. Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a partially enlarged three-dimensional structural diagram of a plastic self-locking cylindrical bearing cage proposed in this utility model;

[0022] Figure 5 This utility model proposes a plastic self-locking cylindrical bearing cage. Figure 4 Enlarged structural diagram at point B.

[0023] In the diagram: 1. Annular frame; 2. Side beam; 3. Pocket; 4. Reinforcing rib; 5. Elastic sheet; 6. Elastic hemispherical protrusion; 7. Oil groove; 8. Locking frame; 9. Section; 10. Threaded hole one; 11. Threaded hole two; 12. Threaded rod; 13. Knob. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example 1: A plastic self-locking cylindrical bearing cage, such as... Figure 1 - Figure 3As shown, there is an annular frame 1, and a side beam 2 is fixedly connected to the bottom of the annular frame 1. A pocket 3 is opened inside the side beam 2. A reinforcing rib 4 is fixedly connected to one side of the inner wall of the pocket 3. An elastic sheet 5 is fixedly connected to one side of the reinforcing rib 4. An elastic hemispherical protrusion 6 is fixedly connected to one side of the elastic sheet 5. An oil groove 7 is opened on the side surface of the side beam 2.

[0027] Cylindrical rollers are placed one by one into pocket 3. When a cylindrical roller enters pocket 3, the elastic hemispherical protrusion 6 will undergo slight elastic deformation under the pressure of the roller, thereby tightly holding the roller and realizing the self-locking function. The elastic plate 5 provides the necessary elasticity and restoring force to ensure the reliability of the self-locking function. The reinforcing rib 4 is located behind the elastic plate 5, which further improves the locking force by increasing the structural strength and preventing the roller from falling off during operation. The oil groove 7 is used to store and transport lubricating oil. When the bearing is running, the lubricating oil will be evenly distributed between the roller and pocket 3, reducing friction and wear, and improving the operating efficiency and service life of the bearing.

[0028] like Figure 1 - Figure 5 As shown, a locking frame 8 is movably connected to the bottom of the side beam 2, and a segment 9 is fixedly connected to the top of the locking frame 8. A threaded hole 10 is opened at the bottom of the side beam 2, and a threaded hole 11 is opened inside the locking frame 8. A threaded rod 12 is threadedly connected inside the threaded hole 11, and a knob 13 is fixedly connected to the bottom of the threaded rod 12.

[0029] Place the locking frame 8 at the bottom of the side beam 2, and screw the threaded rod 12 into the threaded hole 10 and the threaded hole 11 by rotating the knob 13 to complete the locking.

[0030] Example 2: A plastic self-locking cylindrical bearing cage, such as Figure 1 - Figure 3 As shown, the diameter of the annular frame 1 is the same as the diameter of the side beam 2. The pockets 3 are arranged in a ring array, the oil grooves 7 are arranged in a ring array, the reinforcing ribs 4 are arranged in a ring array, the elastic sheets 5 are arranged in a ring array, and the elastic hemispherical protrusions 6 are arranged in a ring array.

[0031] like Figure 1 - Figure 5 As shown, the diameter of the annular frame 1 is the same as the diameter of the locking frame 8, the diameter of the locking frame 8 is the same as the diameter of the side beam 2, the threaded hole 10 and the threaded hole 11 are the same size and are symmetrical from top to bottom, and the threaded rod 12 is threadedly connected to the threaded hole 10.

[0032] Working principle: Cylindrical rollers are placed one by one into pocket 3. When a cylindrical roller enters pocket 3, the elastic hemispherical protrusion 6 will undergo slight elastic deformation under the pressure of the roller, thus tightly holding the roller and realizing the self-locking function. The elastic plate 5 provides the necessary elasticity and restoring force to ensure the reliability of the self-locking function. The reinforcing rib 4 is located behind the elastic plate 5, which further improves the locking force by increasing the structural strength and preventing the roller from falling off during operation. The oil groove 7 is used to store and transport lubricating oil. When the bearing is running, the lubricating oil will be evenly distributed between the roller and pocket 3, reducing friction and wear, and improving the bearing's operating efficiency and service life. The locking frame 8 is placed at the bottom of the side beam 2, and the threaded rod 12 is screwed into the threaded hole 10 and the threaded hole 11 by rotating the knob 13 to complete the locking.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic self-locking cylindrical bearing cage, comprising an annular frame (1), characterized in that, The bottom of the annular frame (1) is fixedly connected to a side beam (2). The side beam (2) has a pocket (3) inside. A reinforcing rib (4) is fixedly connected to one side of the inner wall of the pocket (3). An elastic sheet (5) is fixedly connected to one side of the reinforcing rib (4). An elastic hemispherical protrusion (6) is fixedly connected to one side of the elastic sheet (5). An oil groove (7) is opened on the side surface of the side beam (2).

2. The plastic self-locking cylindrical bearing cage according to claim 1, characterized in that, The bottom of the side beam (2) is movably connected to a locking frame (8), the top of the locking frame (8) is fixedly connected to a segment (9), and the bottom of the side beam (2) is provided with a threaded hole (10).

3. A plastic self-locking cylindrical bearing cage according to claim 2, characterized in that, The locking frame (8) has a threaded hole (11) inside, and a threaded rod (12) is threaded inside the threaded hole (11). A knob (13) is fixedly connected to the bottom of the threaded rod (12).

4. A plastic self-locking cylindrical bearing cage according to claim 1, characterized in that, The diameter of the annular frame (1) is the same as the diameter of the side beam (2), the pockets (3) are arranged in a ring array, and the oil grooves (7) are arranged in a ring array.

5. A plastic self-locking cylindrical bearing cage according to claim 1, characterized in that, The reinforcing ribs (4) are arranged in a ring array, the elastic sheets (5) are arranged in a ring array, and the elastic hemispherical protrusions (6) are arranged in a ring array.

6. A plastic self-locking cylindrical bearing cage according to claim 1, characterized in that, The diameter of the annular frame (1) is the same as the diameter of the locking frame (8), and the diameter of the locking frame (8) is the same as the diameter of the side beam (2).

7. A plastic self-locking cylindrical bearing cage according to claim 3, characterized in that, The threaded hole one (10) and the threaded hole two (11) are the same size and are symmetrical. The threaded rod (12) is threadedly connected to the threaded hole one (10).

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