Tapered roller bearing with sealing structure

Abstract

The utility model belongs to the technical field of tapered roller bearings, and particularly relates to a tapered roller bearing with a sealing structure, which comprises an outer ring and an inner ring, a connecting groove is arranged on the outer surface of the outer ring, an annular groove is arranged on the side surface of the inner ring, and a sealing component is mounted on the surface of the outer ring and comprises a lower pressing ring. The inner surface of the lower pressing ring is in threaded connection with the outer surface of the connecting groove, a connecting plate is arranged on the side surface of the outer ring, a pin roller is movably connected into the connecting plate, the outer surface of the pin roller is attached to the side surface of the inner ring, a sealing gasket is fixedly connected to the side surface of the connecting plate, and a sealing ring is fixedly connected to the side surface of the sealing gasket. The side surface of the sealing ring is movably connected with the interior of the annular groove. The gap between the outer ring and the inner ring can be sealed, external dust is prevented from entering the rolling groove, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of tapered roller bearings, specifically a tapered roller bearing with a sealing structure. Background Technology

[0002] Tapered roller bearings are a type of rolling bearing, mainly composed of an inner ring, an outer ring, tapered rollers, and a cage. Both the inner and outer rings have raceways with a conical cross-section, a key structural feature that mates with the tapered rollers. The tapered rollers, located between the inner and outer rings, are cone-shaped and roll within the raceways.

[0003] In the prior art, because tapered roller bearings have a separable structure with a large gap between the inner and outer rings, external dust can easily enter the roller groove through the gap during use, which leads to increased friction between the roller and the roller groove and shortens the service life of the bearing. Summary of the Invention

[0004] The purpose of this invention is to provide a tapered roller bearing with a sealing structure that can seal the gap between the outer and inner rings, preventing external dust from entering the roller groove and extending the bearing's service life.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A tapered roller bearing with a sealing structure is provided, comprising an outer ring and an inner ring. A connecting groove is formed on the outer surface of the outer ring, and an annular groove is formed on the side surface of the inner ring. A sealing assembly is installed on the surface of the outer ring. The sealing assembly includes a lower pressure ring, the inner surface of which is threadedly connected to the outer surface of the connecting groove. A connecting plate is provided on the side surface of the outer ring, and a roller is movably connected inside the connecting plate. The outer surface of the roller is in contact with the side surface of the inner ring. A sealing gasket is fixedly connected to the side surface of the connecting plate, and a sealing ring is fixedly connected to the side surface of the sealing gasket. The side surface of the sealing ring is movably connected to the inside of the annular groove.

[0006] Optionally, the number of the connecting groove, the annular groove, and the sealing assembly is two, and they are mirror-symmetrical along the central axis of the outer ring.

[0007] Optionally, the inner surface of the outer ring is provided with an inner groove, and the inner groove is inclined.

[0008] Optionally, the outer surface of the inner ring is provided with an outer groove, the outer groove is inclined, and the position of the outer groove corresponds to that of the inner groove.

[0009] Optionally, a retainer is provided inside the outer groove, and the outer surface of the retainer is provided with a mounting groove, and the number of mounting grooves is multiple.

[0010] Optionally, a tapered roller is movably connected inside the mounting groove, and the number of tapered rollers is multiple, the tapered rollers being conical in shape.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention features a connecting groove, an annular groove, and a sealing assembly. The connecting plate is brought close to the outer ring, and then the lower pressure ring is threadedly connected to the outer ring and continuously rotated, pushing the connecting plate to move. This causes the sealing gasket to come into contact with the outer ring, and the sealing ring enters the annular groove. The lower pressure ring stops rotating when the ball contacts the inner ring. At this point, the sealing gasket and sealing ring seal the gap between the outer and inner rings. Compared to existing technologies, this invention can seal the gap between the outer and inner rings, preventing external dust from entering the groove and extending the bearing's service life. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a partial structural schematic diagram of the present invention;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0018] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B;

[0019] Figure 6 This utility model Figure 3 A magnified structural diagram at point C.

[0020] In the diagram: 1. Outer ring; 101. Connecting groove; 2. Inner ring; 201. Annular groove; 3. Sealing assembly; 301. Lower pressure ring; 302. Connecting plate; 303. Roller; 304. Sealing gasket; 305. Sealing ring; 4. Inner groove; 5. Outer groove; 6. Cage; 7. Mounting groove; 8. Tapered roller. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] The present invention will now describe a tapered roller bearing with a sealing structure according to an embodiment of the present invention. Please refer to [link / reference]. Figures 1 to 6A tapered roller bearing with a sealing structure includes an outer ring 1 and an inner ring 2. The outer surface of the outer ring 1 has a connecting groove 101, and the side surface of the inner ring 2 has an annular groove 201. A sealing assembly 3 is mounted on the surface of the outer ring 1. The sealing assembly 3 includes a lower pressure ring 301, the inner surface of which is threadedly connected to the outer surface of the connecting groove 101. A connecting plate 302 is provided on the side surface of the outer ring 1. The connecting plate 302 can apply pressure to a sealing gasket 304, bringing the sealing gasket 304 closer to the outer ring 1. A roller 303 is movably connected inside the connecting plate 302. The roller 303 can convert the friction between the inner ring 2 and the connecting plate 302 into rolling friction when the inner ring 2 rotates, facilitating the use of the inner ring 2. The outer surface of the roller 303 is threadedly connected to the connecting plate 302. The side surfaces of the inner ring 2 are fitted together, and the side surface of the connecting plate 302 is fixedly connected to the sealing gasket 304. Under the pressure of the lower pressure ring 301, the outer part of the sealing gasket 304 is tightly fitted to the outer ring 1, thereby forming a seal on the side near the outer ring 1. The side surface of the sealing gasket 304 is fixedly connected to the sealing ring 305. The side surface of the sealing ring 305 is movably connected to the inside of the annular groove 201. The sealing ring 305 is located in the annular groove 201 and blocks the gap on one side of the inner ring 2, thus forming a seal on the side near the inner ring 2. There are two connecting grooves 101, annular grooves 201 and sealing components 3, and they are mirror symmetrical along the central axis of the outer ring 1, which can form a sealing structure on both sides of the outer ring 1 to prevent dust from entering.

[0026] In this embodiment of the utility model, please refer to Figures 1 to 6 The inner surface of the outer ring 1 has an inner groove 4, which is inclined. The outer surface of the inner ring 2 has an outer groove 5, which is also inclined. The inner groove 4 and the outer groove 5 cooperate to allow the tapered rollers 8 to rotate within them. The position of the outer groove 5 corresponds to that of the inner groove 4. A retainer 6 is provided inside the outer groove 5. The retainer 6 can keep the distance between the tapered rollers 8 inside the retainer 6 consistent. The outer surface of the retainer 6 has mounting grooves 7. There are multiple mounting grooves 7. Tapered rollers 8 are movably connected inside the mounting grooves 7. There are multiple tapered rollers 8. The tapered rollers 8 are conical. The tapered rollers 8 can reduce the friction when the inner ring 2 rotates, which is convenient for the use of the bearing.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tapered roller bearing with a sealed construction comprising an outer ring (1) and an inner ring (2), characterized in that: The outer surface of the outer ring (1) is provided with a connecting groove (101), the side surface of the inner ring (2) is provided with an annular groove (201), the surface of the outer ring (1) is provided with a sealing assembly (3), the sealing assembly (3) comprises a pressing ring (301), the inner surface of the pressing ring (301) is screwed with the outer surface of the connecting groove (101), the side surface of the outer ring (1) is provided with a connecting plate (302), the inner part of the connecting plate (302) is movably connected with a roller (303), the outer surface of the roller (303) is fitted with the side surface of the inner ring (2), the side surface of the connecting plate (302) is fixedly connected with a sealing pad (304), the side surface of the sealing pad (304) is fixedly connected with a sealing ring (305), and the side surface of the sealing ring (305) is movably connected with the inner part of the annular groove (201).

2. A tapered roller bearing having a seal arrangement as claimed in claim 1, characterized in that: The number of the connecting groove (101), the annular groove (201) and the sealing assembly (3) is two, and they are mirror-symmetric along the central axis of the outer ring (1).

3. A tapered roller bearing having a seal arrangement as set forth in claim 1 wherein: The inner surface of the outer ring (1) is provided with an inner groove (4), and the inner groove (4) is inclined.

4. A tapered roller bearing having a seal arrangement as claimed in claim 3, characterised in that: The outer surface of the inner ring (2) is provided with an outer groove (5), and the outer groove (5) is inclined.

5. A sealed conical roller bearing as in claim 4 wherein: The position of the outer groove (5) corresponds to the inner groove (4).

6. A sealed conical roller bearing as in claim 5 wherein: The inner part of the outer groove (5) is provided with a retainer (6), the outer surface of the retainer (6) is provided with a mounting groove (7), and the number of the mounting groove (7) is multiple. The inner part of the mounting groove (7) is movably connected with a tapered roller (8), the number of the tapered roller (8) is multiple, and the tapered roller (8) is conical.

Images