Hub

Abstract

The utility model relates to a hub and relates to the field of hubs, the hub comprises a hub shaft, a spoke arranged on the hub shaft and a rim arranged on the spoke, and an elastic cushion is arranged on the spoke and protrudes out of the spoke. The elastic cushion protruding out of the spoke is arranged on the spoke, in the running process of an automobile, part of stones splashed on a road collide with the elastic cushion protruding out of the spoke, damage of the stones splashed on the road to the hub can be reduced, and the service life of the spoke can be prolonged. And the elastic pads protrude out of the spokes, so that the heat dissipation area of the hub is increased, and the heat dissipation capacity of the hub is improved.

Description

Technical field:

[0001] The utility model belongs to the technical field of wheel hubs, in particular to a wheel hub. Background technology:

[0002] The wheel hub is a cylindrical metal component whose center is mounted on the axle and whose inner profile supports the tire. The materials of the wheel hub mainly include steel wheel hub and alloy wheel hub (aluminum alloy wheel hub, magnesium alloy wheel hub, etc.). Among them, alloy wheel hub is very popular among car owners because of its light weight, high strength, beautiful appearance and good heat dissipation.

[0003] The wheel hub's sliding strips are an important component of the wheel, connecting the rim and hub to provide support and fixation. They also protect the wheel rim from external impact and damage, but their service life needs to be improved. Summary of the invention:

[0004] In order to increase the service life of the sliding strip, the utility model aims to provide a wheel hub.

[0005] The utility model is achieved in this way:

[0006] A wheel hub comprises a hub shaft, spokes arranged on the hub shaft and a rim arranged on the spokes. The spokes are provided with elastic pads, which protrude from the spokes.

[0007] Preferably, the spokes include a hub cover provided on the hub shaft and a plurality of sliding bars provided on the hub cover, wherein the plurality of sliding bars are spaced apart around the outer circumference of the hub shaft, a cross-section of the sliding bar in the axial direction of the hub shaft is larger than a cross-section of the hub cover in the axial direction of the hub shaft, and opposite ends of the sliding bar are respectively fixed to the hub shaft and the rim.

[0008] Preferably, the sliding bar is slidably connected to the hub cover, and the sliding bar slidably extends into or out of the hub cover. A driving member is provided on the hub cover, and the driving member drives the sliding bar to move.

[0009] Preferably, a plurality of limit blocks are provided on the sliding bar, and the limit blocks are located on opposite sides of the hub cover, and the limit blocks are used to abut against the hub cover for limiting.

[0010] Preferably, a sliding opening is provided on the hub cover, and the sliding bar slides into or out of the sliding opening. A plurality of elastic sealing pads are provided on the hub cover, and the elastic sealing pads are arranged corresponding to the sliding openings, and the elastic sealing pads cover the corresponding sliding openings.

[0011] Preferably, a plurality of the elastic pads are evenly distributed around the circumference of the hub shaft.

[0012] Preferably, a plurality of positioning grooves are provided on the hub cover, and the positioning grooves are arranged corresponding to the elastic pads.

[0013] Preferably, the elastic pad and the hub cover are fixed by gluing.

[0014] The outstanding advantages of the utility model compared with the prior art are:

[0015] 1. The present invention provides an elastic pad protruding from the wheel spoke. When the car is driving, some stones flying on the road will hit the elastic pad protruding from the wheel spoke, which is beneficial to reducing the damage to the wheel hub caused by stones flying on the road and improving the service life of the wheel spoke. In addition, the elastic pad protruding from the wheel spoke is beneficial to increasing the heat dissipation area of ​​the wheel hub and improving the heat dissipation capacity of the wheel hub.

[0016] 2. The utility model drives the sliding bar to move through the driving member. When the temperature of the wheel rises, the driving member drives the sliding bar to extend out of the hub cover, thereby increasing the heat dissipation area of ​​the wheel hub; when the car is running, the wheel does not heat up and the sliding bar does not protrude from the hub cover, which is conducive to reducing the impact force of gravel on the sliding bar.

[0017] 3. The utility model uses an elastic sealing gasket to cover the sliding groove, which is beneficial to reducing water and dust from entering the wheel hub through the gap between the sliding bar and the hub cover. When the sliding bar protrudes from the hub cover, the sliding bar presses against the elastic sealing gasket to make the elastic sealing gasket protrude from the hub cover. The elastic sealing gasket covers the sliding bar, which is beneficial to reducing the impact received by the sliding bar and improving the service life of the sliding bar. Description of the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model cut away on the rim, mainly showing the hub cavity;

[0020] Figure 3 It is a partial cross-sectional view of this embodiment, mainly showing the structure of the spoke.

[0021] Figure markings in the specification: 1. hub shaft; 2. spoke; 21. hub cover; 211. sliding opening; 212. driving member; 213. elastic sealing gasket; 214. positioning groove; 215. elastic gasket; 22. sliding strip; 221. limiting block; 23. hub cavity; 3. rim. Specific implementation method:

[0022] The present invention is further described below with reference to specific embodiments. Figure 1 —3:

[0023] The utility model discloses a wheel hub. Figure 1, including a hub shaft 1, spokes 2 and a rim 3. The hub shaft 1 and the rim 3 are coaxial, the rim 3 is arranged around the outer circumference of the wheel shaft, the spokes 2 are arranged around the outer circumference of the hub shaft 1, and the spokes 2 are fixedly connected to the hub shaft 1 and the rim 3.

[0024] See also Figure 1 and Figure 2 The spoke 2 includes several hub covers 21 and several sliding strips 22. The number of hub covers 21 is 2. Several hub covers 21 are arranged around the outer circumference of the hub shaft 1. Two hub covers 21 are arranged at intervals. The distribution direction of the two hub covers 21 is parallel to the axis of the hub shaft 1. The rim 3 is arranged around the outer circumference of the hub cover 21. The outer ring and inner ring of the hub cover 21 are welded and fixedly connected to the rim 3 and the hub shaft 1 respectively. The hub shaft 1, the hub cover 21 and the rim 3 are spliced ​​to form a hub cavity 23.

[0025] See also Figure 2 and Figure 3 The hub cover 21 is provided with a plurality of sliding openings 211. The positions and number of the sliding openings 211 correspond to the positions and number of the sliding bars 22. The sliding openings 211 are communicated with the hub cavity 23. The sliding openings 211 are evenly spaced around the circumference of the hub shaft 1. The sliding bars 22 are snapped into the corresponding sliding openings 211. The sliding bars 22 slide into or out of the corresponding sliding openings 211. The cross-section of the sliding bar 22 in the direction parallel to the axis of the hub shaft 1 is thicker than the cross-section of the hub cover 21 in the direction of the axis of the hub shaft 1. The sliding bar 22 fits the inner wall of the corresponding sliding opening 211. The sliding bar 22 is slidably connected to the hub cover 21. The sliding direction of the sliding bar 22 is parallel to the axis of the hub shaft 1. A driving member 212 is fixed on the hub cover 21, and the driving member 212 drives the sliding bar 22 to move.

[0026] During the actual manufacturing process, several reinforcing ribs are machined and formed on one side of the hub cover 21 near the hub cavity 23. These ribs are spaced around the circumference of the hub axle 1 and welded to the rim 3 and the hub axle 1. The projection of the sliding opening 211 toward the hub cavity 23 lies within the ribs, which helps increase the structural strength of the wheel hub. The structure of the ribs is not shown in the drawings.

[0027] See also Figure 2 The sliding opening 211 penetrates the hub cover 21 along the radial direction of the positioning hub cover 21, and the sliding strip 22 is distributed along the opposite ends parallel to the radial direction of the hub cover 21 and fits the hub axle 1 and the rim 3 respectively. The sliding strip 22 is slidingly connected to both the axle and the rim 3, and the sliding strip 22 is used to improve the supporting strength of the spoke 2.

[0028] See also Figure 2 and Figure 3 A plurality of limit blocks 221 are fixed on the sliding bar 22. The limit blocks 221 are located on opposite sides of the hub cover 21 parallel to the sliding direction of the sliding bar 22. The limit blocks 221 abut against the hub cover 21, which helps to prevent the sliding bar 22 from escaping from the sliding opening 211.

[0029] In this embodiment, the driving member 212 is a thermal expansion and contraction block, which is located in the hub cavity 23 and is fixedly connected to the sliding bar 22. In other embodiments, the driving member 212 can also be a small driving cylinder.

[0030] See also Figure 2 and Figure 3 Several elastic sealing pads 213 are fixed on the hub cover 21. The position and number of the elastic sealing pads 213 correspond to the position and number of the sliding openings 211. The elastic sealing pads 213 are located on the side of the corresponding sliding openings 211 away from the fixed rod, and the elastic sealing pads 213 cover the corresponding sliding openings 211.

[0031] During the driving process of the car, when the temperature of the wheel hub rises, the thermal expansion and contraction block expands and drives the sliding bar 22 to move out of the sliding opening 211 away from the side of the hub cavity 23. The sliding bar 22 abuts the elastic sealing gasket 213, so that the elastic sealing gasket 213 protrudes out of the side of the hub cover 21 away from the hub cavity 23, which is beneficial to increase the heat dissipation area of ​​the wheel hub at this time and improve the heat dissipation efficiency of the wheel hub.

[0032] When it is rainy and the ambient temperature is low, the thermal expansion and contraction block contracts, causing the elastic sealing gasket 213 to cover the corresponding sliding opening 211 to prevent dust and water from entering the hub cavity 23 through the sliding opening 211 .

[0033] See also Figure 3 The hub cover 21 is provided with a plurality of positioning grooves 214, which are evenly spaced around the circumference of the hub shaft 1. The positioning grooves 214 are spaced apart from the sliding opening 211. A plurality of elastic pads 215 are adhesively fixed to the hub cover 21. The position and number of the elastic pads 215 correspond to the position and number of the positioning grooves 214. The elastic pads 215 snap into the corresponding positioning grooves 214, and the elastic pads 215 protrude from the end of the hub cover 21 away from the hub cavity 23. The elastic pads 215 are fixed to the hub cover 21 by adhesive, which facilitates replacement of the elastic pads 215.

[0034] When the car is driving, if stones fly up and hit the hub cover 21 , some of the stones directly hit the elastic pad 215 , which helps to reduce the number and strength of the impacts on the hub cover 21 and further helps to increase the service life of the wheel spoke 2 .

[0035] The implementation principle of a wheel hub in an embodiment of the present application is: by installing an elastic pad 215 on the hub cover 21, part of the gravel hits the elastic pad 215, which is beneficial to reducing the impact force on the hub cover 21, reducing scratches on the surface of the hub cover 21, and improving the service life of the hub cover 21.

[0036] The above embodiment is only one of the preferred embodiments of the present invention and is not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wheel hub, characterized in that: The invention comprises a hub shaft (1), a spoke (2) arranged on the hub shaft (1), and a rim (3) arranged on the spoke (2); an elastic pad (215) is provided on the spoke (2), and the elastic pad (215) protrudes from the spoke (2).

2. The wheel hub according to claim 1, characterized in that: The wheel spoke (2) comprises a hub cover (21) provided on the hub shaft (1) and a plurality of sliding strips (22) provided on the hub cover (21), wherein the plurality of sliding strips (22) are spaced apart around the outer periphery of the hub shaft (1), a cross section of the sliding strip (22) in the axial direction of the hub shaft (1) is larger than a cross section of the hub cover (21) in the axial direction of the hub shaft (1), and opposite ends of the sliding strip (22) are fixed to the hub shaft (1) and the wheel rim (3) respectively.

3. The wheel hub according to claim 2, characterized in that: The sliding bar (22) is slidably connected to the hub cover (21), and the sliding bar (22) slides into or out of the hub cover (21). A driving member (212) is provided on the hub cover (21), and the driving member (212) drives the sliding bar (22) to move.

4. The wheel hub according to claim 3, characterized in that: A plurality of limit blocks (221) are provided on the sliding bar (22), and the limit blocks (221) are located on opposite sides of the hub cover (21). The limit blocks (221) are used to abut against the hub cover (21) for limiting position.

5. The wheel hub according to claim 3, characterized in that: The hub cover (21) is provided with a sliding opening (211), the sliding strip (22) slides into or out of the sliding opening (211), and a plurality of elastic sealing pads (213) are provided on the hub cover (21), the elastic sealing pads (213) are arranged corresponding to the sliding opening (211), and the elastic sealing pads (213) cover the corresponding sliding openings (211).

6. The wheel hub according to claim 2, characterized in that: A plurality of elastic pads (215) are evenly distributed around the outer circumference of the hub shaft (1).

7. The wheel hub according to claim 6, characterized in that: The hub cover (21) is provided with a plurality of positioning grooves (214), and the positioning grooves (214) are arranged corresponding to the elastic pads (215).

8. The wheel hub according to claim 2, characterized in that: The elastic pad (215) and the hub cover (21) are fixed by gluing.

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