Adjustable hub structure

Abstract

The utility model discloses an adjustable hub structure which comprises a hub, bearings, a dustproof ring, a shaft, a check ring and a locking screw, and the two ends of the hub are connected with the shaft through the bearings; the two ends of the hub are each provided with a dustproof ring and a check ring, and the dustproof rings are located between the check rings and the bearings. The check ring is fixedly connected to the shaft through a locking screw, and the position of the check ring relative to the shaft is adjustable; the shaft is a standardized shaft with a single outer circle diameter. The adjustable hub structure disclosed by the utility model has the beneficial effects that the two ends of the hub are positioned through the bearings by improving the machining sizes of the two ends of the hub. Meanwhile, the dustproof rings are installed at the two ends of the hub, the possibility that water and dust enter the hub in the actual using process is reduced, and the service life of the hub is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of machinery, specifically relating to an adjustable wheel hub structure. Background Technology

[0002] The patent, with publication number CN202345760U and subject title "A Utility Model Patent for a Heavy-Duty Forklift Steering Axle with Improved Hub Bearing Positioning," and IPC classification number B62D7 / 18, discloses the following technical solution: "Both ends of the steering axle are connected to steering knuckles. A hub is provided on the stepped shaft of the steering knuckle via a large tapered roller bearing, a small tapered roller bearing, and a locking nut. The stepped shaft of the steering knuckle has two steps, namely an inner step and an outer step. The large tapered roller bearing is located at the inner step, and the small tapered roller bearing is located at the outer step. A kingpin cap is provided at the outer end of the hub. An outer retaining ring is provided between the inner step and the large tapered roller bearing. An O-ring is provided between the inner step and the outer retaining ring. A dustproof ring is provided between the outer circumference of the outer retaining ring and the hub."

[0003] Therefore, it is evident that the original hub had a bearing on one side and the axle itself on the other, with a stepped outer diameter for positioning. Dust and moisture could enter the center of the hub, increasing the friction between the axle and the hub, accelerating hub wear, and requiring frequent hub replacement. Furthermore, the original hub's lateral distance was not adjustable, and its positioning was based on the axle's machining dimensions, severely limiting the hub's dimensional requirements during assembly. Additionally, the original axle's machining involved multiple steps and multiple outer diameters.

[0004] In other words, the original wheel hub has at least the following defects: 1. The single-sided bearing and single-sided shaft positioning and rotation method results in poor stability of the wheel hub during operation and large sway; 2. In actual operation, dust can easily enter the center of the wheel hub, and the shaft and wheel hub wear out quickly, which requires further improvement. Utility Model Content

[0005] This utility model addresses the shortcomings of the existing technology by providing an adjustable wheel hub structure.

[0006] This utility model adopts the following technical solution: the adjustable wheel hub structure includes a wheel hub, bearings, a dustproof ring, a shaft, a retaining ring, and locking screws. Both ends of the wheel hub are connected to the shaft via bearings, wherein:

[0007] Dustproof rings and retaining rings are provided at both ends of the wheel hub, with the dustproof rings located between the retaining rings and the bearings;

[0008] The retaining ring is fixedly connected to the shaft by a locking screw, and the position of the retaining ring relative to the shaft is adjustable.

[0009] The shaft is a standardized shaft with a single outer diameter.

[0010] As a preferred technical solution to the above technical solutions, the inner diameter of the dustproof ring is interference-fitted with the outer ring of the bearing, and the outer diameter of the dustproof ring is clearance-fitted with the inner wall of the wheel hub.

[0011] As a preferred technical solution to the above technical solutions, the single outer diameter of the shaft is fitted with a clearance between the inner ring of the bearing.

[0012] As the preferred technical solution among the above technical solutions, the thickness of the retaining ring is matched with the end face spacing of the wheel hub.

[0013] As the preferred technical solution among the above technical solutions, the dustproof ring is made of wear-resistant rubber material.

[0014] The adjustable wheel hub structure disclosed in this utility model has the following advantages:

[0015] 1. By improving the machining dimensions at both ends of the wheel hub, both ends are positioned using bearings. Additionally, dust seals are installed at both ends of the wheel hub to reduce the possibility of moisture and dust entering the hub during actual use, thus helping to extend the wheel hub's lifespan.

[0016] 2. The left and right adjustment of the wheel hub is fixed by locking the retaining ring, which improves the regularity of the wheel hub and axle and can be used in more mechanical equipment.

[0017] 3. The shaft machining was changed to a single outer diameter without multiple steps, reducing machining time and difficulty, and transforming the non-standardized material into a standardized one. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of this application.

[0019] Figure 2 This is the front view of the wheel hub in this application.

[0020] Figure 3 It is along Figure 2 A sectional view along the AA direction.

[0021] Figure 4 yes Figure 1 A magnified view of a portion of region A.

[0022] Figure 5 yes Figure 3 A magnified view of a portion of region B.

[0023] Figure 6 yes Figure 3 A magnified view of region C.

[0024] The reference numerals in the attached diagram include: 10-hub; 20-bearing; 30-dust seal; 40-shaft; 50-retaining ring; 60-locking screw. Detailed Implementation

[0025] This utility model discloses an adjustable wheel hub structure. The following description, in conjunction with a preferred embodiment (Embodiment 1), is shown in the accompanying drawings. Figures 1 to 6 The specific embodiments of this utility model will be further described below.

[0026] See attached diagram. Figures 1 to 6 , Figure 1 The assembly structure of the adjustable hub structure is shown. Figure 2 and Figure 3 The adjustable wheel hub structure is shown from different perspectives. Figures 4 to 6 The partial structures of the adjustable wheel hub are shown respectively.

[0027] Example 1.

[0028] Preferably, the adjustable hub structure includes a hub 10, a bearing 20, a dust seal 30, a shaft 40, a retaining ring 50, and a locking screw 60. Both ends of the hub 10 are connected to the shaft 40 via the bearing 20, wherein:

[0029] Dustproof rings 30 and retaining rings 50 are provided at both ends of the wheel hub 10. The dustproof rings 30 are located between the retaining rings 50 and the bearings 20. Through the positioning and cooperation between the bearings 20 and the wheel hub 10, and by setting the dustproof rings 30 between the retaining rings 50 and the bearings 20, the adjustable wheel hub structure reduces the possibility of moisture and dust entering the interior of the wheel hub 10 during actual use, which helps to improve the service life of the wheel hub 10.

[0030] The retaining ring 50 is fixedly connected to the shaft 40 by the locking screw 60, and the position of the retaining ring 50 relative to the shaft 40 is adjustable. This allows the retaining ring 50 to adjust the left and right position of the hub 10 relative to the shaft 40, thereby achieving axial positioning of the hub 10. The left and right adjustment of the hub 10 is locked and fixed by the retaining ring 50, improving the standardization and versatility of the hub 10 and the shaft 40. The adjustable hub structure can be used in more mechanical equipment. This is equivalent to allowing the left and right position of the hub 10 on the shaft 40 to be adjusted according to actual assembly requirements, thus forming an adjustable hub structure.

[0031] Shaft 40 is a standardized shaft with a single outer diameter, which means that shaft 40 does not have a multi-step structure.

[0032] The inner diameter of the dustproof ring 30 is interference-fitted with the outer ring of the bearing 20, and the outer diameter of the dustproof ring 30 is clearance-fitted with the inner wall of the hub 10.

[0033] The outer diameter of the shaft 40 is clearance-fitted with the inner ring of the bearing 20, so that the hub 10 can be directly fitted onto the shaft 40 during final assembly.

[0034] The thickness of the retaining ring 50 matches the end face spacing of the wheel hub 10 to ensure the rotational stability of the wheel hub 10 and the shaft 40 after locking.

[0035] The dustproof ring 30 is made of wear-resistant rubber material.

[0036] The following describes the overall concept of the adjustable wheel hub structure disclosed in this embodiment.

[0037] Specifically, by improving the machining dimensions at both ends of the wheel hub 10, both ends of the wheel hub 10 are positioned by bearings 20. At the same time, dust seals 30 are installed at both ends of the wheel hub 10 to reduce the possibility of moisture and dust entering the interior of the wheel hub 10 during actual use, which helps to improve the service life of the wheel hub 10.

[0038] Specifically, the left and right adjustment of the hub 10 is fixed by locking the retaining ring 50, which improves the regularity of the hub 10 and the shaft 40 and can be used in more mechanical equipment.

[0039] Specifically, the machining of shaft 40 was changed to an outer diameter without multiple steps, reducing machining time and difficulty, and transforming the non-standardized material into a standardized one.

[0040] It is worth mentioning that the specific components and other technical features of the wear-resistant rubber material involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be conventionally selected in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0041] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable wheel hub structure, characterized in that, This includes the hub, bearings, dust seal, shaft, retaining ring, and locking screws. Both ends of the hub are connected to the shaft via bearings. Dustproof rings and retaining rings are provided at both ends of the wheel hub, with the dustproof rings located between the retaining rings and the bearings; The retaining ring is fixedly connected to the shaft by a locking screw, and the position of the retaining ring relative to the shaft is adjustable. The shaft is a standardized shaft with a single outer diameter.

2. The adjustable hub structure according to claim 1, characterized in that, The inner diameter of the dust seal is interference-fitted with the outer ring of the bearing, while the outer diameter of the dust seal is clearance-fitted with the inner wall of the hub.

3. The adjustable hub structure according to claim 2, characterized in that, The single outer diameter of the shaft is clearance-fitted with the inner ring of the bearing.

4. The adjustable hub structure according to claim 1, characterized in that, The thickness of the retaining ring matches the end face spacing of the wheel hub.

5. The adjustable hub structure according to claim 1, characterized in that, The dust ring is made of wear-resistant rubber material.

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