High-precision hub

Abstract

The utility model provides a high-precision hub which comprises a hub body, a bearing installation module is arranged in the center of the interior of the hub body, the outer side wall of the bearing installation module is connected with the inner side wall of the hub body through a connecting rod, and a bearing connecting hole is formed in the center of the bearing installation module. The bearing connecting hole comprises an inner hole and an outer hole, the circle center of the inner hole and the circle center of the outer hole are located on the bearing center line, and the diameter of the inner hole is larger than that of the inner hole. According to the high-precision hub provided by the utility model, the bearing connecting holes of the bearing mounting module used for connecting the bearing are divided into the inner hole and the outer hole, and the diameters of the inner hole and the outer hole are different, so that the two ends of the used bearing are also provided with thinner mounting parts, and the thinner mounting parts are mounted in the outer hole in the bearing mounting process; other installation parts are arranged in the inner hole, the connection strength of the bearing and the hub is improved through two-position connection, and therefore the use precision of the hub is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel hubs, and particularly relates to a high-precision hub. Background Art

[0002] A hub is a cylindrical metal part that supports the tire inside the tire profile and is centered on the axle. It is also called a wheel rim, steel rim, wheel, or tire bell. There are many types of hubs according to different diameters, widths, forming methods, and materials. A hub includes many parameters, and each parameter will affect the use of the vehicle.

[0003] The connection strength between the hub and the bearing also affects the use accuracy of the hub. However, the existing connection method between the hub and the bearing is simple, so the use accuracy of the hub is not high enough. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a high-precision hub, which is used to enhance the connection strength between the hub and the bearing, thereby improving the use accuracy of the hub.

[0005] To achieve the above object, the utility model provides a high-precision hub, which includes a hub body. A bearing installation module is arranged at the center inside the hub body. The outer side wall of the bearing installation module is connected to the inner side wall of the hub body through a connecting rod. A bearing connection hole is arranged at the center of the bearing installation module. The bearing connection hole includes an inner hole and an outer hole. The centers of the inner hole and the outer hole are on the bearing center line, and the diameter of the inner hole is larger than that of the inner hole.

[0006] For the high-precision hub provided by the utility model, the bearing connection hole of the bearing installation module for connecting the bearing inside it is divided into an inner hole and an outer hole, and the diameters of the inner and outer holes are different. Therefore, a thinner section of the installation part is also provided at both ends of the used bearing. During the bearing installation, the thinner section is installed into the outer hole, and other installation parts are installed in the inner hole. The two connections improve the connection strength between the bearing and the hub, thereby improving the use accuracy of the hub.

[0007] In a possible implementation manner, a groove is arranged on the outer surface of the bearing installation module. The groove is circular, and a plurality of fixing holes are arranged along the circumference at the bottom of the groove. The plurality of fixing holes are arranged around the outer hole. A connection component is also arranged on the bearing, and the connection component is installed through the fixing holes, further improving the connection strength between the bearing and the hub.

[0008] In a possible implementation manner, a plurality of seal cover installation holes are arranged along the circumference on the outer surface of the bearing installation module. The seal cover installation holes are used to install the outer seal cover to reduce the entry of external dust into the bearing connection.

[0009] In a possible implementation, the inner surface of the bearing mounting module is arched.

[0010] In a possible implementation, the connecting rod is an arc-shaped rod.

[0011] In a possible implementation, the cross-section of the bearing mounting module is a regular decagon, there are ten connecting rods provided, and the connecting rods are connected to the vertices of the regular decagon. Description of the Drawings

[0012] Figure 1 is a schematic diagram of a high-precision hub structure provided by the present utility model;

[0013] Figure 2 is a schematic diagram of the back of a high-precision hub provided by the present utility model. Detailed Embodiments

[0014] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes that do not depart from the spirit and scope of the present utility model.

[0015] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0016] In the description of the present application, terms such as "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0017] Referring to the drawings Figure 1 and Figure 2 , as shown in the figure, a high-precision hub provided by the present utility model, the high-precision hub includes a hub body 1, the hub body 1, a bearing mounting module 2 is provided at the center inside the hub body 1, the outer side wall of the bearing mounting module 2 is connected to the inner side wall of the hub body 1 through a connecting rod 3, a bearing connection hole 4 is provided at the center of the bearing mounting module 2, the bearing connection hole 4 includes an inner hole 41 and an outer hole 42, the centers of the inner hole 41 and the outer hole 42 are on the bearing center line, and the diameter of the inner hole 41 is greater than the diameter of the inner hole 41.

[0018] The high-precision hub provided by the present utility model has a bearing connection hole 4 of a bearing installation module 2 for connecting a bearing inside it, which is divided into an inner hole 41 and an outer hole 42. The diameters of the inner and outer holes 42 are different. Therefore, a thinner installation part is also provided at both ends of the used bearing. During the bearing installation, the thinner part is installed into the outer hole 42, and the other installation parts are installed in the inner hole 41. The two connections improve the connection strength between the bearing and the hub, thereby improving the use precision of the hub.

[0019] In a possible implementation manner, a groove 5 is provided on the outer surface of the bearing installation module 2. The groove 5 is circular, and a plurality of fixing holes 6 are arranged along the circumference at the bottom of the groove 5. The plurality of fixing holes 6 are arranged around the outer hole 42. A connection component is also provided on the bearing, and the connection component is installed through the fixing holes 6, further improving the connection strength between the bearing and the hub.

[0020] In a possible implementation manner, a plurality of seal cover installation holes 7 are arranged along the circumference on the outer surface of the bearing installation module 2. The seal cover installation holes 7 are used to install an outer seal cover to reduce the entry of external dust into the bearing connection.

[0021] In a possible implementation manner, the inner surface of the bearing installation module 2 is arched in a circular arc shape.

[0022] In a possible implementation manner, the connecting rod 3 is an arc-shaped rod.

[0023] In a possible implementation manner, the cross-section of the bearing installation module 2 is a regular decagon, and there are ten connecting rods 3, and the connecting rods 3 are connected to the vertices of the regular decagon.

[0024] It is worth mentioning that for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some of the technical features can be equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A high-precision wheel hub, characterized in that: It includes a hub body, wherein a bearing mounting module is arranged at the center of the hub body, the outer wall of the bearing mounting module is connected to the inner wall of the hub body by a connecting rod, and a bearing connecting hole is arranged at the center of the bearing mounting module, the bearing connecting hole includes an inner hole and an outer hole, the centers of the inner hole and the outer hole are on the center line of the bearing, and the diameter of the inner hole is larger than the diameter of the outer hole.

2. The high-precision wheel hub according to claim 1, characterized in that: A groove is arranged on the outer surface of the bearing installation module, the groove is circular, a plurality of fixing holes are arranged along the circumference of the bottom of the groove, and the plurality of fixing holes are arranged around the outer hole.

3. The high-precision wheel hub according to claim 2, characterized in that: A plurality of sealing cover mounting holes are arranged along the circumference on the outer surface of the bearing mounting module.

4. The high-precision wheel hub according to claim 3, characterized in that: The inner surface of the bearing mounting module is arched in an arc shape.

5. The high-precision wheel hub according to claim 4, characterized in that: The connecting rod is an arc-shaped rod.

6. The high-precision wheel hub according to claim 5, characterized in that: The cross section of the bearing installation module is a regular decagon, and ten connecting rods are provided, and the connecting rods are connected to the vertices of the regular decagon.

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