Tapered roller bearing with good sealing performance
By designing a sealing and protective device in the tapered roller bearing, the problems of jamming and friction caused by foreign matter entering are solved, improving sealing performance and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN GUANGYANG BEARING
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-26
AI Technical Summary
Existing tapered roller bearings have gaps between their components, which allow foreign matter to easily enter, causing jamming or increased friction and affecting their performance.
The design incorporates sealing and protective devices, including a sealing cover, reinforcing rods, steel balls, and sleeves. Through a combination of threaded connections and rubber materials, the clearance between the inner and outer rings of the bearing is sealed, reducing the ingress of debris and protecting the rollers and cage.
It improves the sealing performance and service life of the bearing, reduces friction and impact damage, and ensures normal use.
Smart Images
Figure CN224283239U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bearing technology, specifically a tapered roller bearing with good sealing performance. Background Technology
[0002] Tapered roller bearings are a common type of rolling bearing, mainly used to bear combined radial and axial loads, especially in working conditions where radial loads are dominant and axial loads are secondary. The rollers are truncated cones and make angular contact with the raceways of the inner and outer rings.
[0003] Most existing tapered roller bearings consist of an inner ring, an outer ring, a cage, and multiple rollers. They are commonly used in the transmission mechanisms of automobiles, industrial machinery, and agricultural machinery to withstand the combined radial and axial loads from the transmission mechanism.
[0004] However, due to the gaps between the various components of the bearing, external debris may fall into the bearing, causing jamming between the components or increasing friction, thus affecting the bearing's performance. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] In order to overcome the above-mentioned defects of the prior art, this utility model provides a tapered roller bearing with good sealing performance, which solves the problem that due to the gaps between the various components of the bearing, external debris may fall into the bearing, causing jamming or increased friction between the various components of the bearing, thus affecting the bearing performance.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a tapered roller bearing with good sealing performance, comprising a bearing body, a sealing device provided on one side of the bearing body, the sealing device comprising a sealing cover, the sealing cover being sleeved on the bearing body, wherein the sealing cover is positioned between the inner ring and the outer ring of the bearing body, a circular hole block is fixedly connected to one side of the sealing cover, a bolt is provided inside the circular hole block, a threaded groove is provided on one side of the inner ring of the bearing body, and the surface of the bolt is threadedly connected to the inner wall of the threaded groove.
[0009] As a further embodiment of this utility model: a plurality of reinforcing rods are fixedly connected to the inner side of the enclosure, and the reinforcing rods are made of stainless steel.
[0010] As a further embodiment of this utility model: an annular plate is fixedly connected to the side of the enclosure near the circular hole block, and the annular plate is made of rubber.
[0011] As a further embodiment of this utility model: a plurality of steel balls are rolled on the side of the enclosure near the outer ring of the bearing body, and the surface of the steel balls is in contact with the surface of the outer ring of the bearing body.
[0012] As a further embodiment of this utility model: a retaining ring is fixedly connected to one side of the inner ring of the bearing body, and the surface size and shape of the circular hole block are adapted to the inner wall size and shape of the retaining ring.
[0013] As a further embodiment of this utility model: a protective device is provided on one side of the bearing body, the protective device includes a sleeve, the sleeve is sleeved on the bearing body, a cylinder is fixedly connected to one side of the sleeve, the surface of the cylinder is slidably connected to the inner wall of the bearing body, and a plurality of baffles are fixedly connected to one side of the cylinder.
[0014] As a further embodiment of this utility model: a plurality of rubber strips are fixedly connected to the surface of the sleeve, and the plurality of rubber strips are arranged at equal intervals.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. This tapered roller bearing with good sealing performance can cover and seal the gap between the inner and outer rings of the bearing body by setting a sealing device. This reduces the possibility of external debris falling into the bearing body through the gap between the inner and outer rings, causing jamming or increased friction between the various parts of the bearing body, which would affect the performance of the bearing body. This improves the sealing performance and service life of the bearing body.
[0018] 2. This tapered roller bearing with good sealing performance can provide protection for the rollers and cage inside the bearing body by setting a sealing device, reducing the collision between external objects and the internal components of the bearing body, and preventing the rollers or cage from shifting.
[0019] 3. This tapered roller bearing with good sealing performance can be protected by a protective device during storage or transportation, reducing the risk of the bearing body colliding with external objects during storage or transportation, and preventing surface wear or deformation that could affect the normal use of the bearing body. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the retaining ring of this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the enclosure of this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the sleeve of this utility model.
[0024] In the diagram: 1. Bearing body; 2. Sealing device; 21. Sealing cover; 22. Circular hole block; 23. Bolt; 24. Reinforcing rod; 25. Annular plate; 26. Steel ball; 27. Threaded groove; 28. Snap ring; 3. Protective device; 31. Sleeve; 32. Cylinder; 33. Baffle; 34. Rubber strip. Detailed Implementation
[0025] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0026] like Figure 1-4 As shown, this utility model provides a technical solution: a tapered roller bearing with good sealing performance, including a bearing body 1, a sealing device 2 provided on one side of the bearing body 1, the sealing device 2 including a sealing cover 21, the sealing cover 21 being sleeved on the bearing body 1, wherein the sealing cover 21 is positioned between the inner ring and the outer ring of the bearing body 1, a circular hole block 22 is fixedly connected to one side of the sealing cover 21, a bolt 23 is provided inside the circular hole block 22, a threaded groove 27 is provided on one side of the inner ring of the bearing body 1, the surface of the bolt 23 is threadedly connected to the inner wall of the threaded groove 27, by setting the sealing device 2, firstly, the sealing cover 21 is manually moved, so that the sealing cover 21 drives the circular hole block 22 to move, when the sealing cover 21 moves to the bearing body When the surface position is 1, the inner wall of the circular hole block 22 coincides with the inner wall of the threaded groove 27. At this time, the bolt 23 is rotated by a tool, so that the bolt 23 is turned into the internal position of the circular hole block 22 and the threaded groove 27 to fix the sealing cover 21. The sealing cover 21 is fitted on the bearing body 1 and covers the gap between the outer ring and the inner ring of the bearing body 1, increasing the sealing between the outer ring and the inner ring, preventing the entry of external debris, thereby achieving the sealing protection of the bearing body 1. This reduces the possibility of external debris falling into the bearing body 1 through the gap between the inner ring and the outer ring, causing jamming or increased friction between the various parts of the bearing body 1, affecting the performance of the bearing body 1, and improving the sealing performance and service life of the bearing body 1.
[0027] Specifically, such as Figure 2 and Figure 3 As shown, multiple reinforcing rods 24 are fixedly connected to the inner side of the sealing cover 21. The reinforcing rods 24 are made of stainless steel. By setting the reinforcing rods 24, the strength of the sealing cover 21 can be increased, reducing the possibility of deformation or breakage caused by pressure or impact during use. An annular plate 25 is fixedly connected to the side of the sealing cover 21 near the circular hole block 22. The annular plate 25 is made of rubber. By setting the annular plate 25, the annular plate 25 can fill and cover the gap between the sealing cover 21 and the inner ring, further improving the sealing effect of the bearing body 1.
[0028] Specifically, such as Figure 2 and Figure 3 As shown, multiple steel balls 26 are rolled on the side of the enclosure 21 near the outer ring of the bearing body 1. The surface of the steel balls 26 is in contact with the surface of the outer ring of the bearing body 1. By setting the steel balls 26, the steel balls 26 can replace the enclosure 21 in contact with the surface of the outer ring of the bearing body 1. Under the rolling action of the steel balls 26, the friction between the two is reduced, and the service life of the enclosure 21 is improved. A retaining ring 28 is fixedly connected to one side of the inner ring of the bearing body 1. The surface size and shape of the round hole block 22 are adapted to the inner wall size and shape of the retaining ring 28. By setting the retaining ring 28, the round hole block 22 can be quickly positioned by inserting into the retaining ring 28, which improves the convenience and efficiency of personnel in installing and calibrating the enclosure 21.
[0029] Specifically, such as Figure 4 As shown, a protective device 3 is provided on one side of the bearing body 1. The protective device 3 includes a sleeve 31, which is fitted onto the bearing body 1. A cylinder 32 is fixedly connected to one side of the sleeve 31. The surface of the cylinder 32 is slidably connected to the inner wall of the bearing body 1. Multiple baffles 33 are fixedly connected to one side of the cylinder 32. By setting the protective device 3, the sleeve 31 is first manually moved to move the cylinder 32. When the sleeve 31 moves to fit on the outer ring of the bearing body 1, the cylinder 32 is inserted into the inner ring of the bearing body 1. This allows the multiple baffles 33 to pass through the interior of the bearing body 1 and fit against the surface of the inner ring. The multiple baffles 33 limit and fix the cylinder 32 and the sleeve 31, so that the sleeve 31 fits on the bearing body 1 and separates it from the outside world, thereby protecting the bearing body 1 and reducing the possibility of the bearing body 1 colliding with external objects during storage or transportation, resulting in surface wear or deformation, which would affect the normal use of the bearing body 1.
[0030] Specifically, such as Figure 4 As shown, multiple rubber strips 34 are fixedly connected to the surface of the sleeve 31. The multiple rubber strips 34 are arranged at equal intervals. By setting the rubber strips 34, the rubber strips 34 can prevent objects from directly colliding with the sleeve 31, and absorb the impact force by utilizing the elastic deformation ability of the rubber material, thereby further improving the protection effect on the bearing body 1.
[0031] The working principle of this utility model is as follows:
[0032] S1. First, manually move the sealing cover 21 so that the sealing cover 21 moves the round hole block 22. When the sealing cover 21 moves to the position where it is fitted on the surface of the bearing body 1, the inner wall of the round hole block 22 coincides with the inner wall of the threaded groove 27. At this time, use a tool to rotate the bolt 23 so that the bolt 23 is turned into the position inside the round hole block 22 and the threaded groove 27 to fix the sealing cover 21. This allows the sealing cover 21 to be fitted on the bearing body 1 and cover the gap between the outer ring and the inner ring of the bearing body 1, increasing the sealing between the outer ring and the inner ring, preventing the entry of external debris, and thus achieving the sealing protection of the bearing body 1.
[0033] S2. First, manually move the sleeve 31 to drive the cylinder 32 to move. When the sleeve 31 moves to fit on the outer ring of the bearing body 1, the cylinder 32 is inserted into the inner ring of the bearing body 1, so that multiple baffles 33 pass through the inside of the bearing body 1 and fit against the surface of the inner ring. The multiple baffles 33 limit and fix the cylinder 32 and the sleeve 31, so that the sleeve 31 fits on the bearing body 1 and separates it from the outside world, thereby achieving the protection of the bearing body 1.
[0034] 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.
[0035] 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 sealed tapered roller bearing comprising a bearing body (1), characterised in that: A sealing device (2) is provided on one side of the bearing body (1). The sealing device (2) includes a sealing cover (21). The sealing cover (21) is sleeved on the bearing body (1). The sealing cover (21) is placed between the inner ring and the outer ring of the bearing body (1). A round hole block (22) is fixedly connected to one side of the sealing cover (21). A bolt (23) is provided inside the round hole block (22). A threaded groove (27) is opened on one side of the inner ring of the bearing body (1). The surface of the bolt (23) is threadedly connected to the inner wall of the threaded groove (27).
2. The tapered roller bearing with good sealing performance according to claim 1, characterized in that: The inner side of the enclosure (21) is fixedly connected with a plurality of reinforcing rods (24), which are made of stainless steel.
3. The tapered roller bearing with good sealing performance according to claim 1, characterized in that: The sealing cover (21) is fixedly connected to an annular plate (25) on the side near the circular hole block (22), and the annular plate (25) is made of rubber.
4. A tapered roller bearing with good sealing performance according to claim 1, characterized in that: The enclosure (21) has multiple steel balls (26) rolled on the side near the outer ring of the bearing body (1), and the surface of the steel balls (26) is in contact with the surface of the outer ring of the bearing body (1).
5. A tapered roller bearing with good sealing performance according to claim 1, characterized in that: A retaining ring (28) is fixedly connected to one side of the inner ring of the bearing body (1), and the surface size and shape of the circular hole block (22) are adapted to the size and shape of the inner wall of the retaining ring (28).
6. A tapered roller bearing with good sealing performance according to claim 1, characterized in that: A protective device (3) is provided on one side of the bearing body (1). The protective device (3) includes a sleeve (31), which is sleeved on the bearing body (1). A cylinder (32) is fixedly connected to one side of the sleeve (31). The surface of the cylinder (32) is slidably connected to the inner wall of the bearing body (1). A plurality of baffles (33) are fixedly connected to one side of the cylinder (32).
7. A tapered roller bearing with good sealing performance according to claim 6, characterized in that: The sleeve (31) has multiple rubber strips (34) fixedly connected to its surface, and the multiple rubber strips (34) are arranged at equal intervals.