Cylindrical roller bearing cage for adjusting the motion of rollers

Abstract

This utility model discloses a cylindrical roller bearing cage for adjusting roller motion, including a first annular base, a second annular base, and a circumferentially distributed partition assembly. The partition assembly consists of a limiting beam and a first partition and a second partition fixedly connected together, forming a roller receiving space between adjacent partitions. The outwardly expanding arc-shaped cross-section of the first annular base guides the axial flow of lubricating oil, while the inwardly concave arc-shaped cross-section of the second annular base, in conjunction with a groove, forms an oil storage area, enhancing positioning and lubrication effects. The arc-shaped contact surfaces of the first and second partitions are adapted to the roller contour, restricting the radial movement of the rollers and controlling the roller trajectory. The two ends of the limiting beam are connected to the inner side of the first annular base and the outer side of the second annular base, improving torsional stiffness, extending service life, and reducing maintenance costs.

Description

Technical Field

[0001] This utility model relates to the technical field of bearing cages, specifically a cylindrical roller bearing cage for adjusting the movement of rollers. Background Technology

[0002] As a core component of mechanical transmission systems, cylindrical roller bearings directly affect the load-bearing capacity, speed limits, and service life of equipment. The cage, as a key component inside the bearing, mainly undertakes the functions of isolating the rollers, guiding movement, reducing friction, and maintaining the stability of the roller space.

[0003] However, under high-speed, heavy-load, or variable-load conditions, traditional cage designs face significant challenges. First, there is the issue of motion stability, as the rollers are prone to skew or oscillation during operation, leading to localized stress concentration, increased wear, and the induction of vibration and noise. Second, there is the risk of structural strength and deformation, as the cage is prone to elliptical deformation or fatigue fracture under load fluctuations. Third, there is the problem of low lubrication efficiency, as the enclosed roller cavity hinders the circulation of lubricating oil, and the roller end faces experience abnormal wear due to insufficient boundary lubrication. Utility Model Content

[0004] The purpose of this invention is to provide a cylindrical roller bearing cage for adjusting roller movement, which guides roller movement and improves lubrication through a partition assembly.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a cylindrical roller bearing cage for adjusting roller movement, comprising a first annular base and a second annular base, the first annular base and the second annular base being coaxially arranged, and a plurality of partition assemblies evenly arranged in a circle being provided between the first annular base and the second annular base; a roller receiving space is formed between two adjacent partition assemblies.

[0006] The partition assembly includes a limiting beam and a first partition and a second partition fixed on the limiting beam. The limiting beam extends axially and is fixedly connected to the first annular base and the second annular base.

[0007] The design of the first annular base and the second annular base + partition assembly enables precise control of the roller motion trajectory, reduces skew friction, and thus achieves the purpose of adjusting the roller motion.

[0008] In a further technical solution, a groove is provided on the side of the second annular base near the roller receiving space.

[0009] The slot structure enhances the assembly stability of the cage and the inner and outer rings of the bearing, prevents axial movement, and can form an oil reservoir by injecting grease, thereby enhancing the boundary lubrication effect and lubricating the rollers.

[0010] In a further technical solution, the two sides of the first and second partitions that are far apart from each other are curved surfaces.

[0011] The first and second partitions are designed with arc-shaped concave surfaces to fit the roller profile, allowing the roller to rotate within the roller housing space, ensuring uniform stress distribution, reducing local contact stress peaks, and guaranteeing smooth roller rolling. Since the first and second partitions are arc-shaped plates, they undergo elastic deformation during roller installation, facilitating roller assembly.

[0012] A further technical solution is that the axial cross-section of the first annular base is arc-shaped, specifically: it transitions from a state parallel to the axis of the first annular base near the limiting beam, to a state perpendicular to the axis of the first annular base away from the limiting beam, and then bends outward.

[0013] The first annular base with outward-expanding curved structure guides the grease to the rollers, improving heat dissipation and lubrication.

[0014] A further technical solution is that the axial cross-section of the second annular base is arc-shaped, specifically: it transitions from being parallel to the axial direction near the limiting beam to bending inwards towards the side away from the limiting beam and perpendicular to the axial direction.

[0015] Guiding the lubricating oil path: The first annular base is arc-shaped to guide the lubricating oil axially into the raceway, and the second annular base is arc-shaped to cooperate with the groove so that the lubricating oil can circulate within the groove; the arc surface reduces the accumulation of impurities and prevents impurities from being retained in the raceway; the second annular base facilitates the machining of the groove, enhances the constraint on the axial displacement of the roller, reduces the elliptical deformation of the cage, and enhances the structural strength.

[0016] In a further technical solution, the outer end face of the first annular substrate is parallel to its axial direction, and the inner end face of the first annular substrate is perpendicular to its axial direction.

[0017] The inner and outer rings of the first annular matrix are differentiated to enhance the structure's resistance to deformation.

[0018] In a further technical solution, the outer ring side of the second annular substrate is perpendicular to its axial direction, and the inner ring end face of the second annular substrate is parallel to its axial direction.

[0019] The inner and outer rings of the second annular base are differentiated to enhance the structure's resistance to deformation and to limit the rollers in the axial direction; the inner ring end face of the first annular base is perpendicular to its axial direction, and the outer ring end face of the second annular base is perpendicular to its axial direction, which facilitates the processing of the limiting beam and reduces the difficulty of installation and alignment; it also facilitates the installation of the rollers, reserves installation space for bearing seals or shoulders, and avoids the risk of interference.

[0020] In a further technical solution, the diameter of the first annular substrate is larger than the diameter of the second annular substrate.

[0021] In a further technical solution, the limiting beam is parallel to the axial direction of the first annular base and the second annular base, and one end of the limiting beam is fixed to the inner side of the first annular base, while the other end of the limiting beam is fixed to the outer side of the second annular base.

[0022] The limiting beam is fixed at both ends on opposite sides, connecting the inner ring of the first annular base and the outer ring of the second annular base to form a support structure that resists the torque generated by the rollers.

[0023] In summary, the present invention has the following beneficial effects: the present invention significantly improves the roller motion control accuracy through the coordinated design of the first annular base, the second annular base and the partition assembly; the roller covering cavity formed by the first partition, the second partition and the limiting beam effectively suppresses roller skew, reduces sliding friction and improves motion stability.

[0024] The arc-shaped design of the slot and the second annular base forms a lubricating oil guiding channel, enhancing the lubrication effect;

[0025] The first and second annular bases are arc-shaped, and the limiting beam connects the inner ring of the first annular base and the outer ring of the second annular base to form a support structure, which resists the torque generated by the rollers, improves the impact resistance, and extends the service life. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0027] Figure 1 This is a first three-dimensional structural schematic diagram of the present invention;

[0028] Figure 2 This is a second three-dimensional structural schematic diagram of the present invention;

[0029] Figure 3 This is a schematic diagram of the third three-dimensional structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the fourth three-dimensional structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the chamfered structure of this utility model;

[0032] Figure 6 This is an axial cross-sectional view of the first and second annular bases of this application.

[0033] In the figure: 1. First annular base; 2. Second annular base; 21. Slot; 3. Limiting beam; 31. First partition; 32. Second partition; 33. Chamfered structure; 4. Roller receiving space. Detailed Implementation

[0034] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0035] 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 scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0036] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", 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.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] like Figures 1-6As shown, a cylindrical roller bearing cage for adjusting roller motion includes a first annular base 1 and a second annular base 2. The first annular base 1 and the second annular base 2 are coaxially arranged, and a plurality of partition assemblies are arranged evenly in a circle between the first annular base 1 and the second annular base 2; a roller receiving space 4 is formed between two adjacent partition assemblies.

[0040] The partition assembly includes a limiting beam 3 and a first partition 31 and a second partition 32 fixed on the limiting beam 3. The limiting beam 3 extends axially and is fixedly connected to the first annular base 1 and the second annular base 2.

[0041] In one embodiment, a groove 21 is provided on the side of the second annular base 2 near the roller receiving space 4.

[0042] In one embodiment, the two sides of the first partition 31 and the second partition 32 that are far apart from each other are arc-shaped surfaces.

[0043] In one embodiment, both the first partition 31 and the second partition 32 are arc-shaped, and the sides of the first partition 31 and the second partition 32 that are far apart from each other are arc-shaped concave surfaces. The first partition 31 and the second partition 32 on the adjacent limiting beam 3 form the roller receiving space 4, and the second partition 32 and the first partition 31 on the adjacent limiting beam 3 form the roller receiving space 4.

[0044] The concave curvature matches the roller profile, allowing the roller to rotate within the roller receiving space 4. Since the first partition 31 and the second partition 32 are arc-shaped plates, when the roller is installed into the roller receiving space 4, the first partition 31 and the second partition 32 will undergo elastic deformation, which facilitates the assembly of the roller.

[0045] In one embodiment, the axial cross-section of the first annular base 1 is arc-shaped, specifically: it transitions from a position parallel to the axis of the first annular base 1 near the limiting beam 3, to a position perpendicular to the axis of the first annular base 1 away from the limiting beam 3, and then curves outwards. Figure 6 As shown.

[0046] In one embodiment, the axial cross-section of the second annular base 2 is arc-shaped, specifically: it transitions from a state parallel to the axial direction of the second annular base 2 near the limiting beam 3 to a state perpendicular to the axial direction of the second annular base 2 away from the limiting beam 3, bending inwards. Figure 6 As shown.

[0047] Guiding the lubricating oil path: The first annular base 1 is arc-shaped to guide the lubricating oil axially into the raceway. The second annular base 2 is arc-shaped and works with the groove 21 to allow the lubricating oil to circulate within the annular groove 21. The arc-shaped surface reduces the accumulation of impurities and prevents impurities from being retained in the raceway. The second annular base 2 facilitates the machining of the groove 21, enhances the constraint on the axial displacement of the roller, reduces the elliptical deformation of the cage, and enhances the structural strength.

[0048] In one embodiment, the outer edge of the limiting beam 3 away from the axis is provided with a chamfered structure 33.

[0049] In one embodiment, the outer end face of the first annular base 1 is parallel to its axial direction, and the inner end face of the first annular base 1 is perpendicular to its axial direction.

[0050] In one embodiment, the outer end face of the second annular base 2 is perpendicular to its axial direction, and the inner end face of the second annular base 2 is parallel to its axial direction.

[0051] In one embodiment, the diameter of the first annular substrate 1 is larger than the diameter of the second annular substrate 2.

[0052] The inner ring end face of the first annular base 1 is perpendicular to its axial direction, and the outer ring end face of the second annular base 2 is perpendicular to its axial direction. This facilitates the processing of the limiting beam 3 and reduces the difficulty of installation and alignment. It also facilitates the installation of rollers, provides installation space for bearing seals or shoulders, and avoids the risk of interference.

[0053] In this embodiment, the limiting beam 3, the first annular base 1, and the second annular base 2 can be welded together, or they can be integrally cast and then precision machined.

[0054] In one embodiment, the limiting beam 3 is parallel to the axial direction of the first annular base 1 and the second annular base 2, and one end of the limiting beam 3 is fixed to the inner side of the first annular base 1, and the other end of the limiting beam 3 is fixed to the outer side of the second annular base 2.

[0055] The limiting beam 3 is fixed at both ends on opposite sides, connecting the inner ring of the first annular base 1 and the outer ring of the second annular base 2 to form a support structure that resists the torque generated by the rollers and facilitates roller installation.

[0056] Any aspects not described in this utility model can be implemented using or by referencing existing technologies. The various embodiments in this specification are described in a progressive manner; similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on its differences from other embodiments. The above descriptions are merely embodiments of this utility model and are not intended to limit the scope of this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A cylindrical roller bearing cage for adjusting roller motion, characterized in that, It includes a first annular base (1) and a second annular base (2), the first annular base (1) and the second annular base (2) are coaxially arranged, and a plurality of partition assemblies are arranged in a circumferentially uniform manner between the first annular base (1) and the second annular base (2), and a roller receiving space (4) is formed between two adjacent partition assemblies. The partition assembly includes a limiting beam (3) and a first partition (31) and a second partition (32) fixed on the limiting beam (3). The limiting beam (3) extends axially and is fixedly connected to the first annular base (1) and the second annular base (2). The second annular base (2) has a slot (21) on one side near the roller receiving space (4).

2. A cylindrical roller bearing cage for adjusting roller motion according to claim 1, characterized in that, The two sides of the first partition (31) and the second partition (32) that are far apart from each other are arc-shaped.

3. A cylindrical roller bearing cage for adjusting roller motion according to claim 2, characterized in that, The first partition (31) and the second partition (32) on the adjacent limiting beam (3) form the roller receiving space (4), and the second partition (32) and the first partition (31) on the adjacent limiting beam (3) form the roller receiving space (4).

4. A cylindrical roller bearing cage for adjusting roller motion according to claim 1, characterized in that, The axial cross section of the first annular base (1) is arc-shaped, specifically: it is in a state parallel to the axis of the first annular base (1) near the limiting beam (3), then moves away from the limiting beam (3) and perpendicular to the axis of the first annular base (1), and then bends outward.

5. A cylindrical roller bearing cage for adjusting roller motion according to claim 1, characterized in that, The axial cross section of the second annular base (2) is arc-shaped, specifically: it transitions from being parallel to the axial direction near the limiting beam (3) to being perpendicular to the axial direction away from the limiting beam (3) and bending inward.

6. A cylindrical roller bearing cage for adjusting roller motion according to claim 3, characterized in that, The outer end face of the first annular base (1) is parallel to its axial direction, and the inner end face of the first annular base (1) is perpendicular to its axial direction.

7. A cylindrical roller bearing cage for adjusting roller motion according to claim 3, characterized in that, The outer end face of the second annular base (2) is perpendicular to its axial direction, and the inner end face of the second annular base (2) is parallel to its axial direction.

8. A cylindrical roller bearing cage for adjusting roller motion according to claim 1, characterized in that, The diameter of the first annular matrix (1) is larger than the diameter of the second annular matrix (2).

9. A cylindrical roller bearing cage for adjusting roller motion according to claim 1, characterized in that, The limiting beam (3) is parallel to the axial direction of the first annular base (1) and the second annular base (2), and one end of the limiting beam (3) is fixed to the inner side of the first annular base (1), and the other end of the limiting beam (3) is fixed to the outer side of the second annular base (2).

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