Noise reduction type cylindrical roller bearing

Abstract

The utility model discloses a noise reduction type cylindrical roller bearing, which belongs to the technical field of cylindrical roller bearings and comprises a retainer, an oil groove is arranged in the retainer, six roller grooves are arranged in the outer cambered surface of the retainer, and a through groove is arranged in the retainer. According to the noise reduction type cylindrical roller bearing, lubricating oil is injected into an oil groove of the retainer, the lubricating oil in the oil groove can enter a lubricating hole through a through groove, after injection is completed, a torsion spring can drive a rotating block and a fixed cover to be closed in a covering mode, a rubber plug is plugged into an oil inlet cylinder, and then the lubricating oil is injected into the oil inlet cylinder; at the moment, when the roller block rotates in the retainer and is in contact with an outlet of the lubricating hole, the roller block can be in contact with lubricating oil through the lubricating hole to lubricate the roller block, so that certain noise generated in the using process due to insufficient lubrication degree after the roller block is used for a long time is prevented.

Description

Technical Field

[0001] This utility model belongs to the technical field of cylindrical roller bearings, specifically a noise-reducing cylindrical roller bearing. Background Technology

[0002] The internal structure of cylindrical roller bearings uses rollers arranged in parallel, with spacers or spacers between the rollers to prevent the rollers from tilting or rubbing against each other, effectively preventing an increase in rotational torque. However, existing cylindrical roller bearings do not have a self-lubricating function, which makes them prone to wear after long-term use. Over time, this can generate noise during use, which in turn affects the surrounding working environment to some extent. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a noise-reducing cylindrical roller bearing, which solves the problem that existing cylindrical roller bearings cannot have a self-lubricating function, which leads to wear after long-term use and eventually generates noise during use, thus affecting the surrounding working environment to a certain extent.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a noise-reducing cylindrical roller bearing, comprising a cage, an oil groove inside the cage, and six roller grooves inside the outer arc surface of the cage. A through groove is also provided inside the cage, located on both sides of the roller grooves. Multiple lubrication holes are provided on both sides of the through groove of the cage, and these lubrication holes communicate with the roller grooves. Roller blocks are disposed within the roller grooves. An oil inlet cylinder is fixedly connected to one side of the cage, and the oil inlet cylinder communicates with the oil groove. A fixing block is fixedly connected to the top outer arc surface of the oil inlet cylinder. A rotating rod is movably connected to one side of the fixing block, and a rotating block is fixedly connected to the surface of the rotating rod.

[0005] As a further embodiment of this utility model: a torsion spring is sleeved on the outer arc surface of the rotating rod, and one end of the torsion spring is fixedly connected to one side of the fixing block.

[0006] As a further embodiment of this utility model: the other end of the torsion spring is movably connected to one side of the rotating block, the bottom end of the rotating block is fixedly connected to a fixing cover, and one side of the fixing cover is fixedly connected to a rubber plug.

[0007] As a further embodiment of this utility model: an inner ring is provided inside the retainer, and an outer ring is provided outside the retainer.

[0008] As a further embodiment of this utility model: the number of outer rings is two, and one of the outer rings has a snap-fit ​​block fixedly connected to both sides of its outer arc surface.

[0009] As a further embodiment of this utility model: rotating snap rings are rotatably connected to both sides of the snap block, and connecting blocks are fixedly connected to both sides of the outer arc surface of the other outer ring, and the positions of the connecting blocks and the rotating snap rings correspond to each other.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This noise-reducing cylindrical roller bearing, through the configuration of a fixed cover, a rotating rod, a torsion spring, and a lubrication hole, firstly, by rotating the fixed cover, the rubber plug is pulled out from the oil inlet cylinder. The fixed cover then rotates around the connection of the rotating rod, driving the torsion spring to rotate as well. At this time, lubricating oil can be injected into the oil groove of the cage through the oil inlet cylinder. The lubricating oil in the oil groove can then enter the lubrication hole through a through groove. After injection, the torsion spring drives the rotating block to close the fixed cover, inserting the rubber plug into the oil inlet cylinder. When the roller block rotates within the cage, when the roller block contacts the outlet of the lubrication hole, the roller block can come into contact with the lubricating oil through the lubrication hole, thus lubricating the roller block and preventing insufficient lubrication after prolonged use, which could lead to noise during operation.

[0012] 2. This noise-reducing cylindrical roller bearing, by setting an outer ring, a rotating snap ring, and a connecting block, when it is necessary to disassemble the two outer rings, first rotate the rotating snap ring to disengage it from the roller block, so that the connecting block and the rotating snap ring are no longer snapped together. At this time, the two outer rings can be disassembled and removed from the surface of the cage, making it convenient to disassemble the outer rings for inspection, cleaning, and maintenance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the cage and inner ring structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the oil inlet cylinder and fixed cover structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the snap-fit ​​block and connecting block structure of this utility model;

[0017] In the diagram: 1. Cage; 2. Oil groove; 3. Through groove; 4. Lubrication hole; 5. Roller groove; 6. Roller block; 7. Oil inlet cylinder; 8. Fixing block; 9. Rotating rod; 10. Torsion spring; 11. Rotating block; 12. Inner ring; 13. Outer ring; 14. Snap-fit ​​block; 15. Rotating snap-fit ​​ring; 16. Connecting block; 17. Fixing cover; 18. Rubber plug. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] like Figure 1-4 As shown, this utility model provides a technical solution: a noise-reducing cylindrical roller bearing, including a cage 1, an oil groove 2 inside the cage 1, an inner ring 12 inside the cage 1, and an outer ring 13 outside the cage 1. The inner ring 12 of the outer ring 13 tightly engages with the roller block 6, thereby limiting the position of the roller block 6 and ensuring the rotational accuracy of the entire bearing.

[0020] The outer arc surface of the cage 1 is provided with six roller grooves 5. The cage 1 is provided with a through groove 3 located on both sides of the roller grooves 5. The cage 1 is provided with multiple lubrication holes 4 on both sides of the through groove 3. The lubrication holes 4 are connected to the roller grooves 5. Roller blocks 6 are provided in the roller grooves 5. An oil inlet cylinder 7 is fixedly connected to one side of the cage 1. The oil inlet cylinder 7 is connected to the oil groove 2. Through the setting of the oil cylinder and the oil groove 2, when lubricating oil is injected into the oil inlet cylinder 7, the lubricating oil can be injected into the oil groove 2 through the oil inlet cylinder 7. This facilitates the flow of lubricating oil from the oil groove 2 to the lubrication holes 4. The lubricating oil flows out from the lubrication holes 4 and is attached to the surface of the roller blocks 6 inside the roller grooves 5, thus lubricating the surface of the roller blocks 6.

[0021] A fixed block 8 is fixedly connected to the top outer arc surface of the oil inlet cylinder 7. A rotating rod 9 is movably connected to one side of the fixed block 8. A torsion spring 10 is sleeved on the outer arc surface of the rotating rod 9. One end of the torsion spring 10 is fixedly connected to one side of the fixed block 8. A rotating block 11 is fixedly connected to the surface of the rotating rod 9. The other end of the torsion spring 10 is movably connected to one side of the rotating block 11. A fixed cover 17 is fixedly connected to the bottom end of the rotating block 11. A rubber plug 18 is fixedly connected to one side of the fixed cover 17. With the setting of the torsion spring 10, when the fixed cover 17 is rotated, the fixed cover 17 and the rotating block 11 drive the torsion spring 10 to rotate, applying pressure to the torsion spring 10. When the rotation ends, the elastic force of the torsion spring 10 can drive the rotating block 11 and the fixed cover 17 to close, inserting the rubber plug 18 into the oil inlet cylinder 7 to prevent lubricating oil from flowing out.

[0022] There are two outer rings 13. One outer ring 13 has a snap-fit ​​block 14 fixedly connected to both sides of its outer arc surface. The snap-fit ​​block 14 has a rotating snap-fit ​​ring 15 rotatably connected to both sides of its outer arc surface. The other outer ring 13 has a connecting block 16 fixedly connected to both sides of its outer arc surface. The connecting block 16 and the rotating snap-fit ​​ring 15 are positioned correspondingly. By rotating the rotating snap-fit ​​ring 15, the rotating snap-fit ​​ring 15 is snapped onto one side of the connecting block 16, so that the rotating snap-fit ​​ring 15 and the connecting block 16 are snapped and fixed, which facilitates the fixed snap-fit ​​of the two outer rings 13.

[0023] The working principle of this utility model is as follows: When the roller block 6 rotates in the roller groove 5, and contacts the outlet of the lubrication hole 4, the roller block 6 can come into contact with the lubricating oil for lubrication. When the oil groove 2 is lacking lubricating oil, the rubber plug 18 can be pulled out of the oil inlet cylinder 7 by rotating the fixed cover 17. The fixed cover 17 then rotates around the connection of the rotating rod 9, driving the torsion spring 10 to rotate. At this time, lubricating oil can be injected into the oil groove 2 through the oil inlet cylinder 7. The lubricating oil in the oil groove 2 can then enter the lubrication hole 4 through the through groove 3. After the injection is completed, the torsion spring 10 will drive the fixed cover 17 to close and insert the rubber plug 18 into the oil inlet cylinder 7. When it is necessary to disassemble and inspect the bearing, the rotating snap ring 15 can be rotated to rotate the rotating snap ring 15 out of the connecting block 16, so that the connecting block 16 and the rotating snap ring 15 are no longer snapped together, and the outer ring 13 can be disassembled.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A noise-reducing cylindrical roller bearing, comprising a cage (1), characterized in that: The retainer (1) has an oil groove (2) inside, and a roller groove (5) is opened in the outer arc surface of the retainer (1). There are six roller grooves (5). A through groove (3) is opened in the retainer (1). The through groove (3) is located on both sides of the roller groove (5). Multiple lubrication holes (4) are opened on both sides of the through groove (3) of the retainer (1). The lubrication holes (4) are connected to the roller groove (5). A roller block (6) is provided in the roller groove (5). An oil inlet cylinder (7) is fixedly connected to one side of the retainer (1). The oil inlet cylinder (7) is connected to the oil groove (2). A fixing block (8) is fixedly connected to the top outer arc surface of the oil inlet cylinder (7). A rotating rod (9) is movably connected to one side of the fixing block (8). A rotating block (11) is fixedly connected to the surface of the rotating rod (9).

2. The noise-reducing cylindrical roller bearing according to claim 1, characterized in that: A torsion spring (10) is sleeved on the outer arc surface of the rotating rod (9), and one end of the torsion spring (10) is fixedly connected to one side of the fixing block (8).

3. The noise-reducing cylindrical roller bearing according to claim 2, characterized in that: The other end of the torsion spring (10) is movably connected to one side of the rotating block (11), and a fixed cover (17) is fixedly connected to the bottom end of the rotating block (11), and a rubber plug (18) is fixedly connected to one side of the fixed cover (17).

4. The noise-reducing cylindrical roller bearing according to claim 1, characterized in that: The retainer (1) has an inner ring (12) inside and an outer ring (13) outside.

5. A noise-reducing cylindrical roller bearing according to claim 4, characterized in that: There are two outer rings (13), and one of the outer rings (13) has a snap-fit ​​block (14) fixedly connected to both sides of the outer arc surface.

6. A noise-reducing cylindrical roller bearing according to claim 5, characterized in that: Rotary snap rings (15) are rotatably connected to both sides of the snap block (14), and connecting blocks (16) are fixedly connected to both sides of the outer arc surface of the other outer ring (13), and the positions of the connecting blocks (16) and the rotating snap rings (15) correspond to each other.

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