Hub assembly without PCD hole

Abstract

The hub assembly without the PCD hole comprises a hub body, the hub body comprises a hub portion, a central through hole is formed in the middle of the hub portion, the edge portion of the outer end face of a connecting disc abuts against the inner end face of the hub portion in a pressing mode, a screw joint column is formed in the middle of the outer end face of the connecting disc, and the screw joint column is inserted in the central through hole in a sleeved mode. The outer end of the screw joint column extends out of the outer end of the central through hole and is in screw joint with a first hub cover, the outer side wall of the first hub cover is a conical wall surface, the inner side wall of the outer end of the central through hole is a conical wall surface, and the outer side wall of the inner end of the first hub cover is pressed against the inner side wall of the outer end of the central through hole. According to the hub, a PCB hole is directly omitted in the hub part, so that the machining difficulty of the hub is greatly reduced, the stepped connecting through hole is machined in the connecting disc connected to the hub and used for being connected with a shaft head of an automobile, the connecting disc is small in size and convenient to clamp, the stepped connecting through hole is convenient to machine, and the machining difficulty of the stepped connecting through hole is reduced.

Description

Technical fields:

[0001] This utility model relates to the field of automotive component technology, and more specifically to a wheel hub assembly without PCD holes. Background technology:

[0002] A wheel hub is a cylindrical metal component that supports the tire and is centrally mounted on an axle. Wheel hubs come in many varieties depending on their diameter, width, forming method, and materials. A wheel hub generally includes the rim, spokes, flange, and bead seat.

[0003] Existing wheel hubs typically have PCB holes directly machined on the hub for connection to the axle of the vehicle. These PCB holes require high precision, and machining them directly on the wheel hub results in a large wheel hub, complicated clamping, high processing costs, and high processing difficulty.

[0004] Moreover, if the PCB hole is machined incorrectly, the entire wheel hub will be scrapped, resulting in high scrapping costs.

[0005] Furthermore, different cars have different PCB hole specifications according to design requirements. However, the other dimensions of their wheel rims are the same. For example, even for the same 17-inch wheel rim, the specifications and positions of the PCB holes will be different. This means that wheel rims can only be produced with PCB holes of the corresponding specifications when there is an order, and it is not possible to prepare orders in advance, that is, to produce and stock in advance. Otherwise, wheel rims may be scrapped due to inconsistent PCB hole specifications. Utility model content:

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a wheel hub assembly without PCD holes. It directly eliminates the PCB holes on the hub, which greatly reduces the processing difficulty of the wheel hub. It uses a connecting plate connected to the wheel hub to process stepped connecting through holes for connecting the axle head of the car. The connecting plate is small in size and easy to clamp, which makes it easy to process the stepped connecting through holes and reduces the difficulty.

[0007] The solution of this utility model to the aforementioned technical problem is:

[0008] A wheel hub assembly without a PCD hole includes a wheel hub body. The wheel hub body includes a central through hole formed in the middle of a hub portion. The outer end face edge of a connecting disc presses against the inner end face of the hub portion. A threaded post is formed in the middle of the outer end face of the connecting disc. The threaded post is inserted into the central through hole. The outer end of the threaded post extends out of the outer end of the central through hole and is threaded onto a first wheel hub cover. The outer side wall of the first wheel hub cover is a conical wall surface. The inner side wall of the outer end of the central through hole is a conical wall surface. The outer side wall of the inner end of the first wheel hub cover presses against the inner side wall of the outer end of the central through hole.

[0009] The top surface of the edge of the connecting plate is formed with multiple stepped connecting through holes that extend downwards, with the outer end having a larger inner diameter and the inner end having a smaller inner diameter. All the stepped connecting through holes are evenly distributed on the edge of the connecting plate with the central axis of the connecting plate as the center.

[0010] The inner end face of the hub covers the outer end face of all stepped connecting through holes.

[0011] The first hubcap has a central through-hole for threaded connection formed in the middle. A threaded post is threaded into the central through-hole for threaded connection. An annular groove is formed on the inner side wall of the outer end of the central through-hole for threaded connection. The inner end of the second decorative cover is inserted into the annular groove of the central through-hole for threaded connection of the first hubcap. An internal thread is formed on the inner side wall of the inner end of the second decorative cover, which is threaded into the outer end of the threaded post. The inner end face of the second decorative cover presses against the inner end face of the annular groove.

[0012] The outer end face of the connecting plate is formed with multiple positioning protrusions. All positioning protrusions are evenly distributed on the outer end face of the connecting plate with the central axis of the connecting plate as the center. The positioning protrusions are inserted into the positioning recesses formed on the inner end face of the hub and cooperate with the positioning recesses.

[0013] The outstanding effect of this utility model is:

[0014] Compared with existing technologies, it directly eliminates PCB holes on the hub, greatly reducing the difficulty of hub processing. It uses a connecting plate on the hub to process stepped connecting through holes for connecting the axle head of the car. The connecting plate is small in size and easy to clamp, making it easy to process the stepped connecting through holes and reducing the difficulty.

[0015] Furthermore, the absence of PCB holes on the wheel hubs reduces the likelihood of them being scrapped due to substandard machining precision, significantly lowering manufacturing costs. Moreover, the elimination of PCB holes allows for the stocking of wheel hubs of the corresponding size as needed. Then, based on the installation specifications of the PCB holes in subsequent orders, connecting plates with stepped connecting through holes of the corresponding specifications and positions can be installed before shipment for installation. This approach offers high flexibility, convenient installation, and excellent results. Attached image description:

[0016] Figure 1 This is a partial structural schematic diagram of the present invention;

[0017] Figure 2 yes Figure 1 A schematic diagram of the local structure from a different angle;

[0018] Figure 3 yes Figure 1 A partial sectional view;

[0019] Figure 4 yes Figure 3 A magnified view of a portion of the image;

[0020] Figure 5 This is a partial structural diagram of the connecting plate;

[0021] Figure 6 This is a partial structural diagram of the connection disc and the first hub cover and the second decorative cover;

[0022] Figure 7 This is a partial structural diagram of the wheel hub body with components such as the connecting disc removed. Detailed implementation method:

[0023] For example, see below. Figures 1 to 7 As shown, a wheel hub assembly without PCD holes includes a wheel hub body 10, which includes a hub portion 11, multiple spokes 12 and a rim 13; a weight-reducing side groove is formed on the adjacent inner sidewall between two adjacent spokes 12.

[0024] The spokes 12 are herringbone shaped, with one end near the hub 11 and two ends near the rim 13. The end near the hub 11 is formed on the outer side wall of the hub 11, and the two ends near the rim 13 are formed on the inner side wall of the outer end of the rim 13.

[0025] An inwardly extending annular groove 131 is formed on the outer side wall of the rim 13 near the outer rim flange. An inwardly extending annular protrusion is formed on the inner side wall of the rim 13 corresponding to the annular groove 131. The two ends of the spokes 12 near the rim 13 are formed on the outer side wall of the annular protrusion and the inner side wall of the outer end of the rim 13.

[0026] All spokes 12 are evenly distributed between the hub 11 and the rim 13, with the central axis of the hub 11 as the center.

[0027] Furthermore, the hub body 10 has a central through hole formed in the middle of the hub portion 11, the outer end face edge of the connecting disc 20 is pressed against the inner end face of the hub portion 11, a threaded post 21 is formed in the middle of the outer end face of the connecting disc 20, and a weight reduction hole 24 is formed in the middle of the inner end face of the connecting disc 20, with the weight reduction hole 24 extending outward into the interior of the threaded post 21.

[0028] The threaded post 21 is inserted into the central through hole. The outer end of the threaded post 21 extends out of the outer end of the central through hole and is threaded onto the first hub cover 30. The outer wall of the first hub cover 30 is a conical wall, and the inner wall of the outer end of the central through hole is a conical wall. The outer wall of the inner end of the first hub cover 30 presses against the inner wall of the outer end of the central through hole.

[0029] The top surface of the edge of the connecting plate 20 is formed with a plurality of stepped connecting through holes 22 extending downward, with the outer end having a larger inner diameter and the inner end having a smaller inner diameter. All the stepped connecting through holes 22 are evenly distributed on the edge of the connecting plate 20 with the central axis of the connecting plate 20 as the center.

[0030] The inner end face of the hub 11 covers the outer end face of all stepped connecting through holes 22 (basically covering them, but some parts will not be covered).

[0031] Furthermore, the first hubcap 30 has a central through-hole formed in its center, and a threaded post 21 is threaded into the central through-hole. An annular groove 211 is formed on the inner sidewall of the outer end of the central through-hole. The inner end of the second decorative cover 40 is inserted into the annular groove 211 of the central through-hole of the first hubcap 30. An internal thread is formed on the inner sidewall of the inner end of the second decorative cover 40, which is threaded onto the outer end of the threaded post 21. The inner end face of the second decorative cover 40 presses against the inner end face of the annular groove 211. By pressing the second decorative cover 40 against the inner end face of the annular groove 211 of the first hubcap 30, the first hubcap 30 is locked, thus...

[0032] The outer wall of the inner end of the second decorative cover 40 is in close contact with or near the inner wall of the annular groove 211;

[0033] The outer end face of the connecting disc 20 is formed with a plurality of positioning protrusions 23. All positioning protrusions 23 are evenly distributed on the outer end face of the connecting disc 20 with the central axis of the connecting disc 20 as the center. The positioning protrusions 23 are inserted into the positioning recesses formed on the inner end face of the hub 11 and cooperate with the positioning recesses. That is, the outer side wall of the positioning protrusion 23 is close to the inner side wall of the corresponding positioning recess, so as to achieve a tight connection and improve the connection between the connecting disc 20 and the hub body 10.

[0034] Both the positioning protrusion 23 and the positioning recess are waist-shaped.

[0035] Furthermore, the outer end face of the second decorative cover 40 is formed with an inwardly extending concave hole 41.

[0036] Multiple slots 31 are formed on the outer side wall of the outer end of the first hub cover 30. All slots 31 are evenly distributed on the outer side wall of the outer end of the first hub cover 30 with the central axis of the first hub cover 30 as the center. The outer end of the first hub cover 30 extends out of the outer end of the central through hole of the hub 11.

[0037] The outer side wall of the portion of the second decorative cover 40 located at the outer end of the annular groove 211 is a tapered side wall with a smaller outer diameter at the outer end and a larger outer diameter at the inner end. Multiple outer grooves 42 are formed on it, and all the outer grooves 42 are evenly distributed on the outer side wall at the outer end of the second decorative cover 40 with the central axis of the second decorative cover 40 as the center.

[0038] Multiple inner protruding support portions 43 are formed on the inner sidewall of the outer concave hole 41, and the inner end face of the inner protruding support portion 43 is formed on the inner end face of the outer concave hole 41.

[0039] All the inner protruding support parts 43 are evenly distributed on the inner sidewall of the outer concave hole 41 with the central axis of the outer concave hole 41 as the center.

[0040] In this embodiment, there is no need to machine PCB holes on the hub 11 during the processing, which greatly reduces the processing difficulty. Moreover, since there are no requirements for the specifications, size and position of the PCB holes, the hub body 10 can be prepared as needed. As can be seen from previous orders, 17-inch hubs are a common specification, but the specifications, size and position of the PCB holes on the hub may vary slightly depending on the batch. Therefore, the hub body 10 can be prepared first, and then, according to the order requirements, stepped connecting through holes 22 of the corresponding specifications and positions can be machined on the corresponding connecting plate 20 (this also applies to PCB holes). Then, it can be installed on the corresponding hub body 10. This makes subsequent order submission fast, supply effect good and efficiency high.

[0041] Its connecting plate 20 is small in size, easy to clamp, and easy to process.

[0042] Furthermore, the second decorative cover 40 and the first hub cover 30 also have dustproof and decorative effects.

[0043] Meanwhile, in this embodiment, the connecting disc 20, the first hub cover 30, and the second decorative cover 40 are made of T6061 aluminum alloy or higher strength materials, and their thread tightening force reaches 600 N·m to ensure connection safety.

[0044] The above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. A wheel hub assembly without a PCD hole, comprising a wheel hub body (10), characterized in that: The hub body (10) includes a hub portion (11) with a central through hole formed in the middle. The outer end face of the connecting plate (20) is pressed against the inner end face of the hub portion (11). A threaded post (21) is formed in the middle of the outer end face of the connecting plate (20). The threaded post (21) is inserted into the central through hole. The outer end of the threaded post (21) extends out of the outer end of the central through hole and is threaded with a first hub cover (30). The outer side wall of the first hub cover (30) is a conical wall. The inner side wall of the outer end of the central through hole is a conical wall. The outer side wall of the inner end of the first hub cover (30) is pressed against the inner side wall of the outer end of the central through hole.

2. A wheel hub assembly without a PCD hole according to claim 1, characterized in that: The top surface of the connecting plate (20) is formed with a plurality of stepped connecting through holes (22) extending downward, with the outer end having a larger inner diameter and the inner end having a smaller inner diameter. All the stepped connecting through holes (22) are evenly distributed on the edge of the connecting plate (20) with the central axis of the connecting plate (20) as the center.

3. A wheel hub assembly without a PCD hole according to claim 2, characterized in that: The inner end face of the hub (11) covers the outer end face of all stepped connecting through holes (22).

4. A wheel hub assembly without a PCD hole according to claim 1, characterized in that: The first hub cover (30) has a central through-hole formed in the middle, and the threaded post (21) is threaded into the central through-hole. An annular groove (211) is formed on the inner side wall of the outer end of the central through-hole. The inner end of the second decorative cover (40) is inserted into the annular groove (211) of the central through-hole of the first hub cover (30). The inner side wall of the inner end of the second decorative cover (40) has an internal thread formed, which is threaded into the outer end of the threaded post (21). The inner end face of the second decorative cover (40) presses against the inner end face of the annular groove (211).

5. A wheel hub assembly without a PCD hole according to claim 4, characterized in that: The outer wall of the inner end of the second decorative cover (40) is in close contact with or near the inner wall of the annular groove (211); The outer end face of the connecting disk (20) is formed with a plurality of positioning protrusions (23). All positioning protrusions (23) are evenly distributed on the outer end face of the connecting disk (20) with the central axis of the connecting disk (20) as the center. The positioning protrusions (23) are inserted into the positioning recess formed on the inner end face of the hub (11) and cooperate with the positioning recess.

6. A wheel hub assembly without a PCD hole according to claim 4, characterized in that: The second decorative cover (40) has an inwardly extending concave hole (41) formed in the middle of the outer end face.

7. A wheel hub assembly without a PCD hole according to claim 1, characterized in that: Multiple slots (31) are formed on the outer side wall of the outer end of the first hub cover (30). All slots (31) are evenly distributed on the outer side wall of the outer end of the first hub cover (30) with the central axis of the first hub cover (30) as the center. The outer end of the first hub cover (30) extends out of the outer end of the central through hole of the hub (11).

8. A wheel hub assembly without a PCD hole according to claim 4, characterized in that: The outer side wall of the portion of the second decorative cover (40) located at the outer end of the annular groove (211) is a conical side wall with a small outer diameter at the outer end and a large outer diameter at the inner end. Multiple outer grooves (42) are formed on it. All the outer grooves (42) are evenly distributed on the outer side wall at the outer end of the second decorative cover (40) with the central axis of the second decorative cover (40) as the center.

9. A wheel hub assembly without a PCD hole according to claim 6, characterized in that: The inner wall of the concave hole (41) is formed with a plurality of inner protruding support portions (43), and the inner end face of the inner protruding support portions (43) is formed on the inner end face of the concave hole (41). All the inner protruding support parts (43) are evenly distributed on the inner sidewall of the outer concave hole (41) with the central axis of the outer concave hole (41) as the center.

10. A wheel hub assembly without a PCD hole according to claim 1, characterized in that: The hub body (10) includes a hub (11), multiple spokes (12) and a rim (13). The spokes (12) are herringbone shaped, with one end near the hub (11) and two ends near the rim (13). The end near the hub (11) is formed on the outer side wall of the hub (11), and the two ends near the rim (13) are formed on the inner side wall of the outer end of the rim (13).

Images