Cylindrical roller bearing with high rotating speed performance
By designing convenient devices in cylindrical roller bearings, including the first ring and the second ring, the serious wear of rollers and cages at high speeds is solved, and the bearings are achieved with a longer service life and lower cost of use.
Patent Information
- Application Number
- CN202422342109.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The high speed performance of cylindrical roller bearings leads to severe wear between the roller and the cage, resulting in unstable bearing speed and need to be replaced frequently, which increases the cost of use.
A convenient device is designed, including a first ring and a second ring. The roller body only comes into contact with one side of the cylindrical cylinder. When the surface is severely worn, the first ring or the second ring can be replaced separately to reduce the cost of use.
Through the design of convenient device, the wear of roller bodies and cages during bearing use is reduced, the service life of the bearing is extended, and the replacement frequency and cost of use is reduced.
Smart Images
Figure CN222991934U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cylindrical roller bearings, and specifically relates to a cylindrical roller bearing with high rotational speed performance. Background Technique
[0002] A cylindrical roller bearing is a rolling bearing, whose rolling elements are cylindrical and are in line contact with the raceway. This design enables the cylindrical roller bearing to have a relatively high radial load capacity and can also withstand a certain axial load.
[0003] A cylindrical roller bearing consists of an inner ring, a number of cylindrical rollers, a cylindrical roller cage and an outer ring. A rib is usually provided on one side of the inner ring or the outer ring. The inner ring, the cage and the outer ring are all separable structures, which is convenient for disassembling, assembling and overhauling the bearing.
[0004] During the actual use process, due to the relatively high rotational speed performance of the cylindrical roller bearing, the cylindrical rollers move rapidly inside the outer ring, resulting in relatively serious wear between the rollers and the cage, and wear is likely to occur at both side edges of the cage. As a result, the rotational speed of the bearing becomes unstable after being used for a period of time and needs to be replaced, leading to problems of reduced stability and increased cost during the use of the bearing. Content of the Utility Model
[0005] (I) Technical Problems to be Solved
[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a cylindrical roller bearing with high rotational speed performance, and solves the problems that due to the relatively high rotational speed performance of the cylindrical roller bearing, the cylindrical rollers move rapidly inside the outer ring, resulting in relatively serious wear between the rollers and the cage, and wear is likely to occur at both side edges of the cage. As a result, the rotational speed of the bearing becomes unstable after being used for a period of time and needs to be replaced, leading to problems of reduced stability and increased cost during the use of the bearing.
[0007] (II) Technical Solutions
[0008] To achieve the above object, the utility model provides the following technical solutions: A cylindrical roller bearing with high rotational speed performance, including an outer ring and an inner ring. A convenient device is arranged inside the outer ring. The convenient device includes a first ring and a second ring. A number of roller bodies are arranged between the first ring and the second ring. A number of cylindrical barrels are fixedly connected to the top end of the first ring. A number of round rods are fixedly connected to the bottom end of the second ring. Four screw rods are rotatably connected to the inner wall of the second ring, and a part of the outer surface of the screw rod is threadedly connected to the top end inner wall of the cylindrical barrel.
[0009] As a further solution of the utility model: The top end of the screw rod is fixedly connected with an operation block, and a number of convex blocks are fixedly connected to the outer surface of the operation block.
[0010] As a further solution of the utility model: the bottom end of the operating block is rotatably connected with a disc, and the bottom end of the disc is provided with a spring.
[0011] As a further solution of the utility model: a plurality of reinforcing rods are fixedly connected to the outer surfaces of the first and second circular rings, and the reinforcing rods are circumferentially distributed on the outer surfaces of the first and second circular rings.
[0012] As a further solution of the utility model: the outer surfaces of the first and second circular rings are provided with positioning devices, the positioning devices include an L-shaped rod, the top end of the L-shaped rod is fixedly connected with an L-shaped block, and the L-shaped block is made of metal with a certain elasticity.
[0013] As a further solution of the utility model: a plurality of convex strips are fixedly connected to one side of the L-shaped block, the convex strips are made of rubber material, and the convex strips are linearly distributed on one side of the L-shaped block.
[0014] As a further solution of the utility model: a convex piece is fixedly connected to one side of the L-shaped rod, and the convex piece is a rubber piece made of rubber material.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the beneficial effects of the present invention are:
[0017] 1. The cylindrical roller bearing with high speed performance is provided with a convenient device and the retaining frame is composed of a first ring and a second ring, so that the roller body only contacts one side of the cylindrical barrel during the use of the bearing. When the surface of the first ring or the second ring is severely worn, the first ring and the second ring can be disassembled and the first ring or the second ring can be replaced separately, thereby reducing the use cost of the bearing.
[0018] 2. The cylindrical roller bearing with high speed performance buffers the force on the loose screw by means of a spring, so as to keep the force on the outer surface of the second ring balanced as much as possible.
[0019] 3. The cylindrical roller bearing with high speed performance can further restrict the position of the screw on the outer surfaces of the first ring and the second ring by clamping the top of the L-shaped block on one side of the operating block at the top of the screw and then clamping the bottom end of the L-shaped rod on the bottom end of the second ring, thereby avoiding the screw from loosening when the bearing is used as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0021] Figure 2 It is an exploded schematic diagram of the three-dimensional structure of the utility model;
[0022] Figure 3 Structural schematic diagram of the first ring of the present utility model;
[0023] Figure 4 Structural schematic diagram of the second ring of the present utility model;
[0024] Figure 5 Structural schematic diagram of the screw rod of the present utility model;
[0025] Figure 6 Structural schematic diagram of the L-shaped rod of the present utility model.
[0026] In the figure: 1, outer ring; 2, convenient device; 3, positioning device; 4, roller body; 5, inner ring; 21, first ring; 22, cylindrical barrel; 23, second ring; 24, round rod; 25, screw rod; 26, operation block; 27, round plate; 28, spring; 29, reinforcing rod; 31, L-shaped rod; 32, L-shaped block; 33, convex strip; 34, convex piece. Specific implementation manner
[0027] The technical solution of this patent will be further described in detail below in conjunction with the specific implementation manner.
[0028] As Figure 1-4 shown, the present utility model provides a technical solution: a cylindrical roller bearing with high rotational speed performance, including an outer ring 1 and an inner ring 5. A convenient device 2 is arranged inside the outer ring 1. The convenient device 2 includes a first ring 21 and a second ring 23. A number of roller bodies 4 are arranged between the first ring 21 and the second ring 23. A number of cylindrical barrels 22 are fixedly connected to the top end of the first ring 21. A number of round rods 24 are fixedly connected to the bottom end of the second ring 23. The inner wall of the second ring 23 is rotatably connected with four screw rods 25. A part of the outer surface of the screw rod 25 is threadedly connected to the top end inner wall of the cylindrical barrel 22. By arranging the first ring 21 and the second ring 23, when installing the bearing, a number of roller bodies 4 are placed between the respective cylindrical barrels 22 on the outer surface of the first ring 21. Subsequently, the respective round rods 24 and screw rods 25 at the bottom end of the second ring 23 are inserted at the cylindrical barrels 22, and then each screw rod 25 is rotated to make the screw rod 25 threadedly connected to the inner wall of the cylindrical barrel 22 to connect the first ring 21 and the second ring 23 to form a cage. Subsequently, the cage is placed inside the outer ring 1, and then the inner ring 5 is placed inside the cage to complete the assembly. By arranging the convenient device 2, since the cage is composed of the first ring 21 and the second ring 23, during the use of the bearing, the roller body 4 only contacts one side of the cylindrical barrel 22. When the surface of the first ring 21 or the second ring 23 is severely worn, the first ring 21 and the second ring 23 can be disassembled, and the first ring 21 or the second ring 23 can be replaced separately, reducing the use cost of the bearing.
[0029] Specifically, as Figure 2-5As shown in the figure, an operation block 26 is fixedly connected to the top end of the screw rod 25. A number of convex blocks are fixedly connected to the outer surface of the operation block 26. Holding the convex blocks on the outer surface of the operation block 26 can more conveniently push the operation block 26 to control the rotation of the screw rod 25 and is not prone to hand slipping. The bottom end of the operation block 26 is rotatably connected to a disc 27. A spring 28 is arranged at the bottom end of the disc 27. When the screw rod 25 is rotated to be threadedly connected with the inner wall of the cylindrical barrel 22 to fix the first ring 21 and the second ring 23, the spring 28 at the bottom end of the disc 27 will be compressed. When the screw rod 25 on one side of the second ring 23 becomes loose, the spring 28 can buffer the force at the loose screw rod 25, and as much as possible, keep the force on the outer surface of the second ring 23 balanced.
[0030] Specifically, as Figure 2-5 shown, a number of reinforcing rods 29 are fixedly connected to the outer surfaces of the first ring 21 and the second ring 23. The reinforcing rods 29 are circumferentially distributed on the outer surfaces of the first ring 21 and the second ring 23. By arranging the reinforcing rods 29, the outer surface shapes of the first ring 21 and the second ring 23 can be strengthened, and as much as possible, avoid deformation when the first ring 21 and the second ring 23 are used.
[0031] Specifically, as Figure 1 、 Figure 2 and Figure 6 shown, a positioning device 3 is arranged on the outer surfaces of the first ring 21 and the second ring 23. The positioning device 3 includes an L-shaped rod 31. The top end of the L-shaped rod 31 is fixedly connected to an L-shaped block 32. The L-shaped block 32 is made of a metal with a certain elasticity. After the first ring 21 and the second ring 23 are installed, multiple L-shaped rods 31 can be respectively attached to the sides of the first ring 21 and the second ring 23 close to the screw rod 25 on the inner sides of the first ring 21 and the second ring 23. Bend the L-shaped block 32 to deform it, and clamp the top end of the L-shaped block 32 on one side of the operation block 26 at the top end of the screw rod 25. Then clamp the bottom end of the L-shaped rod 31 at the bottom end of the second ring 23 to further limit the position of the screw rod 25 on the outer surfaces of the first ring 21 and the second ring 23, and as much as possible, avoid the screw rod 25 from becoming loose when the bearing is used.
[0032] Specifically, as Figure 2 and Figure 6 shown, a number of convex strips 33 are fixedly connected to one side of the L-shaped block 32. The convex strips 33 are made of rubber material. The convex strips 33 are linearly distributed on one side of the L-shaped block 32. By arranging the rubber convex strips 33, the friction force when the L-shaped block 32 contacts the outer surface of the operation block 26 can be increased, so that the operation block 26 and the screw rod 25 are not prone to accidental rotation. A convex piece 34 is fixedly connected to one side of the L-shaped rod 31. The convex piece 34 is a rubber sheet made of rubber material. Pinching one side of the convex piece 34 can more conveniently pull the L-shaped rod 31 to bend the L-shaped block 32 to deform and remove the L-shaped rod 31.
[0033] The working principle of the present utility model is as follows:
[0034] S1. When installing the bearing, place a plurality of roller bodies 4 between the respective cylindrical barrels 22 on the outer surface of the first ring 21. Subsequently, insert the respective round rods 24 and screws 25 at the bottom end of the second ring 23 into the cylindrical barrels 22, and then rotate each screw 25 to threadedly connect the screw 25 with the inner wall of the cylindrical barrel 22 to connect the first ring 21 and the second ring 23 to form a cage. Then, place the cage inside the outer ring 1, and then place the inner ring 5 inside the cage to complete the assembly.
[0035] S2. After the first ring 21 and the second ring 23 are installed, a plurality of L-shaped rods 31 can be respectively attached to the sides of the first ring 21 and the second ring 23 close to the screws 25 on the inner sides of the first ring 21 and the second ring 23. Bend the L-shaped block 32 to deform it, and clamp the top end of the L-shaped block 32 on one side of the operating block 26 at the top end of the screw 25. Then, clamp the bottom end of the L-shaped rod 31 at the bottom end of the second ring 23 to further limit the position of the screw 25 on the outer surfaces of the first ring 21 and the second ring 23.
[0036] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.
[0037] The above has made a detailed description of the preferred embodiment of this patent, but this patent is not limited to the above embodiment. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can also be made without departing from the gist of this patent.
Claims
1. A cylindrical roller bearing with high speed performance, comprising an outer ring (1) and an inner ring (5), characterized in that: A convenient device (2) is arranged inside the outer ring (1), and the convenient device (2) comprises a first circular ring (21) and a second circular ring (23), a plurality of roller bodies (4) are arranged between the first circular ring (21) and the second circular ring (23), a plurality of cylindrical barrels (22) are fixedly connected to the top end of the first circular ring (21), a plurality of round rods (24) are fixedly connected to the bottom end of the second circular ring (23), and four screw rods (25) are rotatably connected to the inner wall of the second circular ring (23), and the outer surface portion of the screw rod (25) is threadedly connected to the top end of the inner wall of the cylindrical barrel (22).
2. The cylindrical roller bearing with high speed performance according to claim 1, characterized in that: The top end of the screw rod (25) is fixedly connected to an operating block (26), and the outer surface of the operating block (26) is fixedly connected to a plurality of protrusions.
3. The cylindrical roller bearing with high speed performance according to claim 2, characterized in that: The bottom end of the operating block (26) is rotatably connected to a disc (27), and the bottom end of the disc (27) is provided with a spring (28).
4. The cylindrical roller bearing with high speed performance according to claim 3, characterized in that: A plurality of reinforcing rods (29) are fixedly connected to the outer surfaces of the first circular ring (21) and the second circular ring (23); the reinforcing rods (29) are distributed in a circumferential manner on the outer surfaces of the first circular ring (21) and the second circular ring (23).
5. The cylindrical roller bearing with high speed performance according to claim 2, characterized in that: The outer surfaces of the first circular ring (21) and the second circular ring (23) are provided with positioning devices (3), the positioning devices (3) comprising an L-shaped rod (31), the top end of the L-shaped rod (31) being fixedly connected with an L-shaped block (32), the L-shaped block (32) being made of metal with a certain elasticity.
6. The cylindrical roller bearing with high speed performance according to claim 5, characterized in that: A plurality of convex strips (33) are fixedly connected to one side of the L-shaped block (32); the convex strips (33) are made of rubber material and are linearly distributed on one side of the L-shaped block (32).
7. The cylindrical roller bearing with high speed performance according to claim 6, characterized in that: A convex piece (34) is fixedly connected to one side of the L-shaped rod (31), and the convex piece (34) is a rubber piece made of rubber material.