A two-piece wheel hub

Abstract

The invention discloses a two-piece wheel hub, comprising a wheel spoke, a wheel rim, a sealing ring and a locking mechanism; the wheel rim comprises a first wheel rim, a straight wheel rim and a fixed wheel rim, the first wheel rim is located at one end of the straight wheel rim, a valve hole is arranged in the middle of the straight wheel rim, the outer side surface of the other end of the straight wheel rim has a taper, and is matched and connected with the wheel spoke; the fixed wheel rim is perpendicular to the straight wheel rim, and is located at the end of the straight wheel rim with the taper; the wheel spoke comprises a second wheel rim, a tapered ring and a mounting surface, the inner side surface of the tapered ring matches with the end of the wheel rim, connecting holes are arranged on the mounting surface of the wheel spoke and the fixed wheel rim, and are fixed by a locking mechanism; a circle of annular grooves is formed between the wheel spokes and the mounting surface of the wheel rim, and the sealing ring is arranged in the annular groove; the two-piece wheel hub provided by the invention is easy to install; it adopts a straight wheel rim structure, has strong impact resistance, the connecting surface of the wheel rim and the wheel spoke is located at the end of the wheel rim, has a large contact area, and is firmly fixed.

Description

Technical Field

[0001] The invention relates to the technical field of wheel hub manufacturing, and in particular to a two-piece wheel hub. Background Art

[0002] With the advancement of society and the rapid development of the automobile industry, people's living standards are constantly improving. Automobiles have become one of the commonly used means of transportation and transport. As the main supporting component, the strength and structure of the wheel hub play a vital role in the operation of the vehicle. The existing two-piece wheel hub production process and structure are difficult to meet the requirements of large vehicles, and are mainly used on vehicles with small loads. A rubber sealing layer is cast at the junction of the front middle piece and the rear piece of the rim. The connection between the front middle piece and the rear piece of the rim is in the middle of the rim. The two are combined and fixed by bolts, which are fixed by screw threads. The rear piece of the rim adopts a groove-deep slope rim. The main deficiencies are as follows: 1. The cast sealing layer is not firm and is easy to be damaged and leak. 2. The contact matching area is small, the bolt connection has no nut, and it relies on the thread of the hole and the bolt connection for locking. The load bearing capacity is poor and there is a risk of breakage. 3. The groove-deep slope rim has insufficient rim support and poor impact resistance. The rim is easy to deform or crack and leak at the groove bottom slope. Summary of the invention

[0003] Technical purpose: In view of the shortcomings of the existing two-piece wheel hub in connection and structure, the present invention discloses a two-piece wheel hub with large load bearing, convenient tire installation, good sealing and reliable fixation.

[0004] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution:

[0005] A two-piece wheel hub comprises a spoke, a rim, a sealing ring, a valve hole, a valve installation through hole, a valve and a locking mechanism; the spoke and the rim are fixedly connected by a locking mechanism, and a sealing ring is arranged on the connecting surface; the rim comprises a straight rim, a first wheel flange, a fixed wheel flange and a first connecting hole; the first wheel flange is located at one end of the straight wheel flange, the valve hole is arranged in the middle of the straight wheel flange, the valve hole at the installation end of the valve is sealed and connected, and the outer side surface of the other end of the straight wheel flange has a taper to facilitate tire installation; the fixed wheel flange is located at the tapered end of the straight wheel flange and is perpendicular to the straight wheel flange; the straight wheel flange has a strong impact resistance and there is no possibility of deformation, cracking or leakage of the wheel flange due to heavy load.

[0006] The fixed rim is provided with a center hole, and its outer end face includes three annular steps, namely the first step, the second step and the third step, and the third step is located at the outermost end; an axle mounting hole is provided on the end face of the third step, and the axle mounting hole and the center hole match the axle, and a first connecting hole is provided on the end face of the second step.

[0007] The spoke includes a second wheel rim, a conical ring and a mounting surface. A second connecting hole is arranged on the mounting surface. The taper of the inner side surface of the conical ring matches the taper of the outer side surface of the straight rim end, and the fit is good and tight, and it is not easy to leak or enter dust. The mounting surface, the conical ring, the upper end surface of the first step and the side surface of the second step form a circle of annular grooves. The sealing ring is installed in the annular groove and is pressed by the mounting surface and the upper end surface of the first step, so that effective sealing can be performed to prevent leakage.

[0008] The locking mechanism includes a locking bolt and a locking nut. The locking bolt passes through the first connecting hole and the second connecting hole and is connected to the locking nut to fix the rim and the spoke. The air nozzle mounting through hole is arranged at the second step, passes through the second step and the mounting surface, and is located at the outermost edge of the wheel hub. The air inlet end of the air nozzle passes through the air nozzle mounting through hole and protrudes from its end face. The hole is convenient for inflating the tire.

[0009] Preferably, the locking bolts are 10.9 grade high-strength bolts, and the locking nuts are 10 grade nuts, to ensure connection strength and increase the service life of the wheel hub.

[0010] Preferably, the sealing ring is an annular rubber ring with good sealing performance, which is installed in the annular groove and is easy to replace.

[0011] Preferably, the spoke is mounted on the end of the rim, and the mounting surface contacts the upper end surface of the second step, with a large contact area and a large contact matching area, so that the installation is stable and firm.

[0012] Preferably, the spokes and rims can be integrally cast or forged according to actual needs, and the spokes and rims are processed in the same way to ensure matching strengths to meet the needs of different types of vehicles.

[0013] When the two-piece wheel hub provided by the present invention is in use, the tire is installed through the tapered end of the straight rim; a sealing ring is installed on the end face of the first step, and the spoke is placed so that the inner surface of the tapered ring contacts the tapered end of the straight rim, and the installation surface fits the upper surface of the second step, the sealing ring is pressed, the first connecting hole and the second connecting hole are aligned, the air inlet end of the air nozzle protrudes from the air nozzle installation through hole, the locking bolt passes through the first connecting hole and the second connecting hole, and the end thereof is locked with a locking nut, and the second wheel rim on the spoke and the second wheel rim at the end of the straight rim jointly limit the position of the tire and keep the seal at the same time; then it is connected to the axle through the center hole on the fixed rim and the axle installation hole, and then installed.

[0014] Beneficial effects: The two-piece wheel hub disclosed in the present invention adopts a straight rim structure, has strong impact resistance, and is not easy to deform and break; the contact area between the spoke and the rim is large, and high-strength locking bolts and locking nuts are used, which are firmly fixed and highly safe; the air inlet end of the air nozzle protrudes from the spoke end face and is located on the side of the wheel hub to facilitate inflation; a sealing ring is provided for sealing, which is convenient for replacement and maintenance; the two-piece wheel hub structure does not require overall replacement, saving maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0016] Figure 1 It is a front view of the present invention;

[0017] Figure 2 The present invention is Figure 1 Sectional view of AA in the middle;

[0018] Figure 3 The spoke edge of the present invention Figure 1 Sectional view of AA in the middle;

[0019] Figure 4 The wheel rim of the present invention Figure 1 Cross-sectional view of the middle BB;

[0020] Figure 5 is a partial enlarged view of the connection between the spoke and the rim of the present invention;

[0021] Among them, 1-wheel spoke, 2-wheel rim, 3-annular groove, 4-sealing ring, 5-air nozzle hole, 6-air nozzle mounting through hole, 7-locking mechanism, 8-air nozzle;

[0022] 11-second wheel rim, 12-mounting surface, 13-conical ring, 14-second connecting hole;

[0023] 21-straight rim, 22-first wheel flange, 23-fixed rim, 24-first connecting hole;

[0024] 71-locking bolt, 72-locking nut;

[0025] 231 - first step, 232 - second step, 233 - third step, 234 - center hole, 235 - axle mounting hole. DETAILED DESCRIPTION

[0026] The present invention will be described more clearly and completely below by way of a preferred embodiment in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiment.

[0027] like Figure 1 , Figure 2 The figure shows a two-piece wheel hub provided by the present invention, including a spoke 1, a rim 2, a sealing ring 4, a valve hole 5, a valve installation through hole 6, a locking mechanism 7 and a valve 8, wherein the spoke 1 and the rim 2 are processed in the same way and can be cast or forged; the locking mechanism 7 includes a locking bolt 71 and a locking nut 72, the locking bolt 71 is a 10.9 grade bolt, and the locking nut 72 is a nut with a strength grade of 10, to ensure that the locking mechanism 7 has sufficient strength to fix the spoke 1 and the rim 2.

[0028] like Figure 3 The wheel spoke 1 shown comprises a second wheel flange 11, a mounting surface 12 and a conical ring 13, wherein the mounting surface 12 is provided with a second connecting hole 14; the wheel rim 2 comprises a straight wheel flange 21, a first wheel flange 22 and a fixed wheel flange 23, wherein one end of the straight wheel flange 21 is the first wheel flange 22, a valve hole (5) is provided in the middle thereof, and the outer side surface of the other end is tapered to facilitate the installation of the tire; the fixed wheel flange 23 is perpendicular to the straight wheel flange 21 and is located at the tapered end of the straight wheel flange 21.

[0029] like Figure 4 The fixed rim 23 shown is provided with a center hole 234, and the end face of the fixed rim 23 is a three-level annular step, which is the first step 231, the second step 232, and the third step 233, wherein the third step is located at the outermost end, and the end face of the third step 233 is provided with an axle mounting hole 235; the center hole 234 and the axle mounting hole 235 match the axle.

[0030] like Figure 5 As shown, a first connecting hole 24 is provided on the end face of the second step 232, and the first connecting hole 24 corresponds to the second connecting hole 14. A locking bolt 71 passes through the first connecting hole 24 and the second connecting hole 14, and the ends are fixed with the locking bolt 72 to fix the spoke 1 and the rim 2. The contact area between the spoke 1 and the rim 2 is large and is firmly fixed.

[0031] The mounting surface 12 of the spoke 1, the side surface of the second step 232, the upper end surface of the first step 231 and the inner side surface of the tapered ring 13 together form a circle of annular groove 3. The inner side surface of the tapered ring 13 matches the taper of the outer side surface of the end of the straight rim 21. The sealing ring 4 is installed in the annular groove 3. The sealing ring 4 uses an annular rubber ring and is pressed by the mounting surface 12 and the upper end surface of the first step 231 to ensure the sealing effect and prevent air leakage.

[0032] The air valve mounting hole 6 is arranged at the second step 232, passing through the second step 232 and the mounting surface 12. The mounting end of the air valve 8 is threadedly connected to the air valve hole 5 for easy disassembly. The air valve 8 passes through the air valve mounting hole 6, and its air inlet end protrudes from the outside of the spoke 1 to facilitate tire inflation.

[0033] The present invention provides a two-piece wheel hub, in which the tire is installed through the tapered end of the straight rim 21, the upper end surface of the first step 231 is installed with the sealing ring 4, the mounting surface 12 of the spoke 1 is in contact with the upper end surface of the second step 232, the locking bolt 71 passes through the first connecting hole 24 and the second connecting hole 14, and is locked with the locking nut 72 to fix the spoke 1 and the rim 2; and is fixed to the axle through the center hole 234 and the axle mounting hole 235.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A two-piece wheel hub, Features: The wheel disc comprises a wheel spoke (1), a wheel rim (2), a sealing ring (4) and a locking mechanism (7); the wheel spoke (1) and the wheel rim (2) are fixed by the locking mechanism (7), and a sealing ring (4) is arranged between the connecting surfaces of the wheel spoke (1) and the wheel rim (2); The wheel rim (2) comprises a straight wheel rim (21), a first wheel edge (22) and a fixed wheel rim (23); the first wheel edge (22) is located at one end of the straight wheel rim (21); the outer side surface of the other end of the straight wheel rim (21) is tapered; the fixed wheel rim (23) is perpendicular to the end of the straight wheel rim (21) with the tapered end; and a first connecting hole (24) is provided on the outer end surface of the fixed wheel rim (23); The wheel spoke (1) comprises a second wheel rim (11), a mounting surface (12) and a tapered ring (13); the inner side surface of the tapered ring (13) has a taper, and the taper matches the taper of the outer side surface of the end of the straight wheel rim (21); and the mounting surface (12) is provided with a second connection hole (14); The mounting surface (12) of the spoke (1) matches the outer end surface of the fixed rim (23), the first connecting hole (24) corresponds to the second connecting hole (14), and is locked using a locking mechanism (7); the inner side surface of the conical ring (13) matches the end surface of the outer side rim (2) with a tapered end of the straight rim (21), and the second rim (11) and the first rim (22) are symmetrical about the straight rim (21); The fixed wheel rim (23) is provided with a center hole (234), and the outer end surface of the fixed wheel rim (23) is provided with three annular steps, namely a first step (231), a second step (232) and a third step (233); the third step (233) is located at the outermost end, and axle mounting holes (235) are evenly arranged on the step surface of the third step; the first connecting hole (24) is arranged on the step surface of the second step (232); the upper end surface of the first step (231), the mounting surface (12), the side surface of the second step (232) and the inner side surface of the conical ring (13) form an annular groove (3), and the sealing ring (4) is installed in the annular groove (3) and is pressed by the mounting surface (12) and the upper end surface of the second step (232); The locking mechanism (7) comprises a locking bolt (71) and a locking nut (72), wherein the locking bolt (71) passes through the first connecting hole (24), the second connecting hole (14) and the locking nut (72) in sequence to be connected; The two-piece wheel hub further comprises an air nozzle hole (5), an air nozzle (8) and an air nozzle mounting through hole (6); the air nozzle hole (5) is opened in the middle of the straight wheel rim (21), and the mounting end of the air nozzle (8) is fixedly connected to the air nozzle hole (5).

2. A two-piece wheel hub according to claim 1, Features: The sealing ring (4) is an annular rubber ring.

3. A two-piece wheel hub according to claim 1, Features: The locking bolt (71) is a 10.9 grade high-strength bolt, and the locking nut (72) is a 10 grade nut.

4. A two-piece wheel hub according to claim 1, Features: The air nozzle mounting through hole (6) is arranged at the second step (232), passes through the second step (232) and the mounting surface (12), the air nozzle (8) passes through the air nozzle mounting through hole (6), and the air inlet end of the air nozzle (8) protrudes out of the air nozzle mounting through hole (6).

5. A two-piece wheel hub according to claim 1, Features: The mounting end of the air nozzle (8) is connected to the air nozzle hole (5) by welding or threading.

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