Automobile wheel end bearing

Abstract

The utility model provides an automobile wheel end bearing and relates to the technical field of bearings. The retainer is mounted in the bearing outer ring, and the cylindrical rollers are mounted in the retainer in a surrounding manner; the bearing inner ring is mounted in the center inside the bearing outer ring, the bearing inner ring is in contact with the retainer, and the cylindrical roller is in rolling contact with the bearing outer ring and the bearing inner ring; two countersunk bolts are connected to the interior of the retainer, and two sealing pieces are installed on the exterior of the retainer. According to the utility model, the stability of the rolling state of the cylindrical roller is guaranteed through the retainer, and gaps at the rotating contact parts of the bearing outer ring, the bearing inner ring and the retainer are blocked through the sealing sheets, so that external impurities are effectively prevented from entering the bearing; and the lubricating oil is located in the heat dissipation holes A and the heat dissipation holes B, so that the heat dissipation area of the bearing is increased, heat generated by the bearing can be quickly transmitted to the external lubricating oil, and the bearing is effectively prevented from being overheated.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to an automobile wheel end bearing. Background Art

[0002] Roller bearings are a type of rolling bearing and are one of the components widely used in modern machinery. They rely on rolling contact between the main components to support rotating parts. Roller bearings have the advantages of small starting torque, high rotation accuracy, and easy selection, and are widely used in the automotive field.

[0003] During use, existing automobile wheel-end bearings have poor sealing effects, which easily allow foreign matter to enter the bearings, affecting the smoothness of the bearing rotation. In addition, the assembly of the bearing components is relatively cumbersome and requires special assembly tools, which is time-consuming. Utility Model Content

[0004] The present disclosure relates to an automobile wheel-end bearing, which solves the problem that the existing automobile wheel-end bearings have poor sealing effect during use, which easily allows foreign matter to enter the interior of the bearing, affecting the smoothness of the bearing rotation, and the assembly of the various bearing components is relatively cumbersome, requiring special assembly tools for assembly operations, and is relatively time-consuming.

[0005] In a first aspect of the present disclosure, an automobile wheel-end bearing is provided, specifically comprising: a bearing outer ring; a retaining frame is installed inside the bearing outer ring, and a cylindrical roller is installed in a circumferential shape inside the retaining frame; a bearing inner ring is installed in the central part of the inner part of the bearing outer ring, the bearing inner ring is in contact with the retaining frame, and the cylindrical roller is in rolling contact with the bearing outer ring and the bearing inner ring; two countersunk bolts are connected to the inside of the retaining frame, and two sealing plates are installed outside the retaining frame.

[0006] Furthermore, the retaining frame is in rotational contact with the bearing outer ring and the bearing inner ring, and the sealing plate is in rotational contact with the bearing outer ring and the bearing inner ring. The retaining frame ensures the stability of the rolling state of the cylindrical roller, and the sealing plate seals the gap in the rotational contact area between the bearing outer ring, the bearing inner ring and the retaining frame.

[0007] Furthermore, the outer ring of the bearing is provided with heat dissipation holes A in a circumferential shape, and the heat dissipation holes A are inclined. The inner ring of the bearing is provided with heat dissipation holes B in a circumferential shape, and the heat dissipation holes B are inclined.

[0008] Furthermore, the retaining frame is composed of two frames, a retaining groove is arranged in a circumferential shape inside the frame, and the cylindrical roller rotates in the retaining groove. Two plug-in columns are arranged outside the frame, and two slots are arranged inside the frame, and the plug-in columns are inserted into the slots.

[0009] Furthermore, two connecting holes are provided inside the frame body, countersunk bolts are connected in the connecting holes, two threaded blind holes are provided inside the frame body, the inner ends of the connecting holes are connected to the threaded blind holes, and the countersunk bolts are threadedly connected in the threaded blind holes.

[0010] Furthermore, four mushroom columns are arranged in a circular shape on the outside of the frame, and four arc-shaped clamping holes are arranged in a circular shape on the inside of the sealing plate. The aperture of one end of the arc-shaped clamping hole is larger than the aperture of the other end, and the mushroom columns are connected to the arc-shaped clamping holes provided in the sealing plate.

[0011] Furthermore, two limiting holes are provided inside the sealing sheet, the limiting holes are communicated with the outer ends of the connecting holes provided on the frame, and the ends of the countersunk bolts are located in the limiting holes.

[0012] The utility model provides an automobile wheel end bearing, which has the following beneficial effects:

[0013] When the utility model is in use, the stability of the rolling state of the cylindrical roller is ensured by the cage, and the gap between the rotating contact parts of the bearing outer ring, the bearing inner ring and the cage is sealed by the sealing sheet, effectively preventing external impurities from entering the interior of the bearing; the lubricating oil is located in the heat dissipation holes A and the heat dissipation holes B, increasing the heat dissipation area of the bearing itself, so that the heat generated by the bearing can be quickly transmitted to the external lubricating oil, effectively preventing the occurrence of bearing overheating.

[0014] In addition, when the column is inserted into the slot, the connecting hole and the threaded blind hole are connected. The countersunk bolts are connected to the connecting hole and the threaded blind hole, and the two frames are connected together by the countersunk bolts, making the assembly and fixation of the retaining frame easier.

[0015] In addition, the sealing piece is connected to the frame by a rotating clamping method, which makes it easier to assemble and disassemble the sealing piece and the frame; when the mushroom column is inserted into the end with a larger aperture of the arc-shaped clamping hole, the sealing piece is rotated to move the mushroom column to the end with a smaller aperture of the arc-shaped clamping hole. At this time, the limiting hole and the connecting hole are connected, and the countersunk bolt is connected to the limiting hole and the connecting hole. The sealing piece is fixed by the countersunk bolt to prevent the sealing piece from rotating in the opposite direction, thereby ensuring the firmness of the sealing piece connection.

[0016] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0018] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached figure:

[0020] Figure 1 The figure shows the overall axial side structure diagram of the automobile wheel end bearing of the present application;

[0021] Figure 2 A schematic diagram of the axial structure of the bearing outer ring and the bearing inner ring of the automobile wheel end bearing of the present application is shown;

[0022] Figure 3 A schematic diagram of the connection structure of the cylindrical roller, retainer, countersunk bolt and sealing plate of the automobile wheel end bearing of the present application is shown;

[0023] Figure 4 A schematic diagram of the split structure of the frame and sealing sheet of the automobile wheel end bearing of the present application is shown.

[0024] Reference Signs List

[0025] 1. Bearing outer ring; 101. Heat dissipation hole A; 2. Bearing inner ring; 201. Heat dissipation hole B; 3. Cylindrical roller; 4. Cage; 41. Frame; 411. Retaining groove; 412. Insert column; 413. Slot; 414. Connecting hole; 415. Threaded blind hole; 416. Mushroom column; 5. Countersunk bolt; 6. Sealing piece; 601. Arc-shaped hole; 602. Limit hole. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1: Please refer to Figures 1 to 4 :

[0028] The utility model proposes an automobile wheel-end bearing, comprising: a bearing outer ring 1; a retaining frame 4 is installed inside the bearing outer ring 1, and a cylindrical roller 3 is installed in a circumferential shape inside the retaining frame 4; a bearing inner ring 2 is installed at the center part of the bearing outer ring 1, the bearing inner ring 2 is in contact with the retaining frame 4, and the cylindrical roller 3 is in rolling contact with the bearing outer ring 1 and the bearing inner ring 2; two countersunk bolts 5 are connected to the inside of the retaining frame 4, and two sealing plates 6 are installed outside the retaining frame 4; the retaining frame 4 is in rotational contact with the bearing outer ring 1 and the bearing inner ring 2, and the sealing plates 6 are in rotational contact with the bearing outer ring 1 and the bearing inner ring 2, the stability of the rolling state of the cylindrical roller 3 is ensured by the retaining frame 4, and the gaps in the rotational contact parts of the bearing outer ring 1, the bearing inner ring 2 and the retaining frame 4 are sealed by the sealing plates 6, effectively preventing external impurities from entering the bearing interior.

[0029] In the disclosed embodiment, a heat dissipation hole A101 is provided in a circumferential shape inside the outer ring 1 of the bearing, and the heat dissipation hole A101 is inclined; a heat dissipation hole B201 is provided in a circumferential shape inside the inner ring 2 of the bearing, and the heat dissipation hole B201 is inclined; by adopting the above technical solution, the lubricating oil is located in the heat dissipation holes A101 and the heat dissipation holes B201, thereby increasing the heat dissipation area of the bearing itself, so that the heat generated by the bearing can be quickly transferred to the external lubricating oil, effectively avoiding the occurrence of bearing overheating.

[0030] In the embodiment of the present disclosure, the retaining frame 4 is composed of two frame bodies 41, and a retaining groove 411 is arranged in a circumferential shape inside the frame body 41. The cylindrical roller 3 rotates in the retaining groove 411. Two plug posts 412 are arranged on the outside of the frame body 41, and two slots 413 are arranged inside the frame body 41. The plug posts 412 are inserted into the slots 413. Two connecting holes 414 are provided inside the frame body 41, and the countersunk bolts 5 are connected to the connecting holes 414. Two threaded blind holes 415 are provided inside the frame body 41, and the inner ends of the connecting holes 414 are connected to the threaded blind holes 415. The countersunk bolts 5 are threadedly connected to the threaded blind holes 415. By adopting the above technical solution, when the plug post 412 is inserted into the slots 413, the connecting hole 414 and the threaded blind hole 415 are connected, and the countersunk bolts 5 are connected to the connecting hole 414 and the threaded blind hole 415. The two frame bodies 41 are connected together by the countersunk bolts 5, which makes it easier to assemble and fix the retaining frame 4.

[0031] In the embodiment of the present disclosure, four mushroom columns 416 are arranged in a circular shape on the outside of the frame 41, and four arc-shaped card holes 601 are arranged in a circular shape on the inside of the sealing plate 6. The aperture of one end of the arc-shaped card hole 601 is larger than the aperture of the other end, and the mushroom columns 416 are connected to the arc-shaped card hole 601 provided on the sealing plate 6; by adopting the above technical solution, the sealing plate 6 and the frame 41 are connected together by a rotating card connection, which makes it easier to disassemble and assemble the sealing plate 6 and the frame 41.

[0032] In the embodiment of the present disclosure, two limiting holes 602 are provided inside the sealing plate 6, and the limiting holes 602 are connected to the outer ends of the connecting holes 414 provided on the frame 41, and the ends of the countersunk bolts 5 are located in the limiting holes 602; using the above technical solution, when the mushroom column 416 is inserted into the end with a larger aperture of the arc-shaped card hole 601, the sealing plate 6 is rotated to move the mushroom column 416 to the end with a smaller aperture of the arc-shaped card hole 601. At this time, the limiting hole 602 and the connecting hole 414 are connected, and the countersunk bolts 5 are connected to the limiting holes 602 and the connecting hole 414. The sealing plate 6 is fixed by the countersunk bolts 5 to prevent the sealing plate 6 from rotating in the opposite direction, thereby ensuring the firmness of the connection of the sealing plate 6.

[0033] The working principle of this embodiment is as follows: first, when the mushroom column 416 is inserted into the end with the larger aperture of the arc-shaped card hole 601, the sealing plate 6 is rotated to move the mushroom column 416 to the end with the smaller aperture of the arc-shaped card hole 601. At this time, the limit hole 602 is connected with the connecting hole 414; the bearing inner ring 2 and the cylindrical roller 3 are located in the bearing outer ring 1, the retaining frame 4 is installed in the bearing outer ring 1, the cylindrical roller 3 is located in the retaining groove 411, the plug column 412 is inserted into the slot 413, the connecting hole 414 is connected with the threaded blind hole 415, and the countersunk bolt 5 is connected to the connecting hole 414 and the threaded blind hole 415. In the blind hole 415 and the limit hole 602, the two frames 41 are connected together by countersunk bolts 5, and the countersunk bolts 5 fix the sealing plate 6 to prevent the sealing plate 6 from rotating in the opposite direction; the retaining frame 4 ensures the stability of the rolling state of the cylindrical roller 3, and the gaps in the rotating contact parts of the bearing outer ring 1, the bearing inner ring 2 and the retaining frame 4 are sealed by the sealing plate 6, effectively preventing external impurities from entering the bearing; the lubricating oil is located in the heat dissipation holes A101 and the heat dissipation holes B201, which increases the heat dissipation area of the bearing itself, so that the heat generated by the bearing can be quickly transferred to the external lubricating oil.

[0034] In this article, there are several points to note:

[0035] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0036] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0037] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. Automobile wheel end bearing, characterized in that: include: A bearing outer ring (1); a retainer (4) is installed inside the bearing outer ring (1), and a cylindrical roller (3) is installed in a circumferential shape inside the retainer (4); a bearing inner ring (2) is installed at the center of the bearing outer ring (1), the bearing inner ring (2) is in contact with the retainer (4), and the cylindrical roller (3) is in rolling contact with the bearing outer ring (1) and the bearing inner ring (2); two countersunk bolts (5) are connected inside the retainer (4), and two sealing sheets (6) are installed outside the retainer (4).

2. The automobile wheel end bearing according to claim 1, characterized in that: The retaining frame (4) is in rotational contact with the bearing outer ring (1) and the bearing inner ring (2), and the sealing sheet (6) is in rotational contact with the bearing outer ring (1) and the bearing inner ring (2).

3. The automobile wheel end bearing according to claim 1, characterized in that: The bearing outer ring (1) is provided with a heat dissipation hole A (101) in a circumferential shape inside, and the heat dissipation hole A (101) is inclined. The bearing inner ring (2) is provided with a heat dissipation hole B (201) in a circumferential shape inside, and the heat dissipation hole B (201) is inclined.

4. The automobile wheel end bearing according to claim 1, characterized in that: The retaining frame (4) is composed of two frame bodies (41), the frame body (41) is provided with a retaining groove (411) in a circumferential shape inside, the cylindrical roller (3) rotates in the retaining groove (411), the frame body (41) is provided with two insertion columns (412) outside, and the frame body (41) is provided with two slots (413) inside, and the insertion columns (412) are inserted into the slots (413).

5. The automobile wheel end bearing according to claim 4, characterized in that: Two connecting holes (414) are provided inside the frame body (41), and the countersunk bolts (5) are connected to the connecting holes (414). Two threaded blind holes (415) are provided inside the frame body (41), and the inner ends of the connecting holes (414) are connected to the threaded blind holes (415), and the countersunk bolts (5) are threadedly connected to the threaded blind holes (415).

6. The automobile wheel end bearing according to claim 4, characterized in that: The frame (41) is provided with four mushroom columns (416) in a circumferential shape on the outside, and the sealing sheet (6) is provided with four arc-shaped clamping holes (601) in a circumferential shape on the inside. The aperture of one end of the arc-shaped clamping hole (601) is larger than the aperture of the other end. The mushroom columns (416) are connected to the arc-shaped clamping holes (601) provided on the sealing sheet (6).

7. The automobile wheel end bearing according to claim 5, characterized in that: Two limiting holes (602) are provided inside the sealing sheet (6), the limiting holes (602) are connected to the outer ends of the connecting holes (414) provided on the frame (41), and the ends of the countersunk bolts (5) are located in the limiting holes (602).

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