CN215097516U - Front axle brake drum and wheel hub subassembly structure - Google Patents
Front axle brake drum and wheel hub subassembly structure Download PDFInfo
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- CN215097516U CN215097516U CN202121546523.8U CN202121546523U CN215097516U CN 215097516 U CN215097516 U CN 215097516U CN 202121546523 U CN202121546523 U CN 202121546523U CN 215097516 U CN215097516 U CN 215097516U
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Abstract
The utility model relates to a front axle brake drum and wheel hub assembly structure, which is characterized in that the brake drum and the wheel hub are assembled and connected through end face teeth and bolt pieces; the brake drum is characterized in that the non-working contact surface area, close to the wheel edge, of the brake drum is provided with heat dissipation holes, the non-working contact surface area, close to the wheel edge, of the inner cavity of the brake drum is provided with wind blade ribs, and the wind blade ribs and the heat dissipation holes are arranged at intervals in the circumferential direction. The utility model has the advantages of reasonable design compactness, the simple and direct high efficiency of assembly, with the integrated partly original wheel hub structure of brake drum, brake drum and wheel hub connect and adopt the terminal surface tooth structure, the modern design, the high-efficient accuracy of counterpointing, assembly efficiency is high. The heat dissipation holes and the wind blade ribs are uniformly arranged in the non-working contact surface area of the brake drum, the wind generated by the wind blade ribs can accelerate the air flow in the wheel rim in the running process of the vehicle, the temperature of wheel rim parts can be effectively reduced, the heat dissipation performance is good, the tire burst risk is reduced, and the service life of the friction plate is prolonged.
Description
Technical Field
The utility model relates to an automobile structure technical field particularly, is a front axle brake drum and wheel hub subassembly structure.
Background
No matter the current commercial car front axle adopts built-in or external structure of brake drum, all has the problem that the temperature of wheel limit part is higher than normal in the vehicle use, and high temperature easily causes the emergence of phenomena such as tire burst and friction lining wearing and tearing too fast to cause user driving safety and vehicle use cost to increase. In addition, the assembly structure between current brake drum and the wheel hub is unreasonable, leads to the problem that the assembly is wasted time and energy because of difficult counterpoint when the two assembles, because of crossing by bolted connection between the terminal surface of brake drum and wheel hub, in order to guarantee sufficient moment, connecting bolt's quantity sets up more, has further reduced assembly efficiency.
Disclosure of Invention
The utility model aims at providing a front axle brake drum and wheel hub subassembly structure, this supplementary gas circuit system has realized the independent air feed to the AMT gearbox, has solved in the traditional supplementary gas circuit AMT gearbox because of with preceding/back return circuit and the supplementary gas device shared gas circuit that remains and lead to the atmospheric pressure unstability, the problem of manipulating unsmooth.
In order to solve the above problems, the utility model adopts the following technical scheme:
a front axle brake drum and hub component structure, which is characterized in that,
the brake drum and the hub are assembled and connected through end face teeth and bolt pieces;
the brake drum is characterized in that the non-working contact surface area, close to the wheel edge, of the brake drum is provided with heat dissipation holes, the non-working contact surface area, close to the wheel edge, of the inner cavity of the brake drum is provided with wind blade ribs, and the wind blade ribs and the heat dissipation holes are arranged at intervals in the circumferential direction.
And a circle of positioning spigot aligned with the wheel is arranged on the outer end surface of the brake drum.
The whole body of the wheel hub is of a cylindrical structure and is provided with a cylindrical core for installing a brake and an end face for being in alignment connection with the brake drum.
The brake drum with the face tooth structure of wheel hub includes: the brake drum comprises a hub, a brake drum and a wheel hub, wherein concave end face teeth are uniformly distributed on the end face of an inner cavity of the brake drum along the circumferential direction, and convex end face teeth are arranged on the end face of the wheel hub.
Concave type terminal surface tooth is four groups, follows the fan-shaped evenly distributed of inner chamber terminal surface circumference of brake drum, and is corresponding, protruding type terminal surface tooth is four groups together, personally submits the fan-shaped evenly distributed of circumference along the wheel hub outer end.
The bolt connecting pieces are four sets and comprise four pairs of bolt holes correspondingly formed in the concave end face teeth and the convex end face teeth and bolts penetrating through the four pairs of bolt holes.
A weight-reducing counter bore is formed in the wheel disc mounting surface of the brake drum.
The utility model discloses a front axle brake drum and wheel hub subassembly structure, structural design is reasonable compact, assembles simple and direct high-efficient, with the integrated partly original wheel hub structure of brake drum, brake drum and wheel hub connect and adopt the terminal surface tooth structure, and the modern design is counterpointed high-efficiently accurate, and assembly efficiency is high. The heat dissipation holes and the wind blade ribs are uniformly arranged in the non-working contact surface area of the brake drum, the wind generated by the wind blade ribs can accelerate the air flow in the wheel rim in the running process of the vehicle, the temperature of wheel rim parts can be effectively reduced, the heat dissipation performance is good, the tire burst risk is reduced, and the service life of the friction plate is prolonged.
Drawings
FIG. 1: the outer end face structure of a front axle brake drum of the first embodiment is schematic;
FIG. 2: a schematic structural diagram of an inner cavity of a front axle hub of the first embodiment;
FIG. 3: a front axle hub structure schematic diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
The front axle brake drum and hub assembly structure of this embodiment, including brake drum 1 and wheel hub 2, fig. 1 shows that the outer terminal surface structure of brake drum in this embodiment assembly structure is schematic, can see from the figure brake drum 1 is close to the non-working contact surface region 13 on wheel limit and has seted up a plurality of louvres 13a along circumference, and this louvre 13a does benefit to the heat dissipation, can effectively improve the heat dispersion on front axle wheel limit. Meanwhile, a plurality of weight-reducing counterbores 14a for reducing the overall weight are formed in the wheel disc mounting surface 14 of the brake drum 1 along the circumferential direction.
Fig. 2 is a schematic diagram of a brake drum inner cavity structure in the assembly structure of this embodiment, fig. 3 is a schematic diagram of a hub structure in the assembly structure of this embodiment, and as can be seen from fig. 2-3, four groups of concave end face teeth 11 uniformly distributed in the circumferential direction are arranged on the end face of the inner cavity of the brake drum 1 in butt joint with the hub 2, and one brake drum bolt hole 12 is respectively formed on each group of concave end face teeth 11, a convex end face tooth 21 adapted to the concave end face teeth 11 is arranged on the end face of the hub 2 in butt joint with the brake drum 1, correspondingly, the convex end face teeth 21 are also four groups uniformly distributed in the circumferential direction along the outer end face of the hub 2, and one hub bolt hole 22 is also respectively formed on each group of convex end face teeth 21; the brake drum 1 and the hub 2 are combined in a contraposition mode through the concave end face teeth 11 and the convex end face teeth 21 and are fixedly connected through four groups of bolt holes formed between the brake drum 1 and the hub 2.
As shown in fig. 3, the hub 2 of the present embodiment has a cylindrical structure, which is simplified compared to the conventional hub structure, and has a cylindrical core 23 for mounting the brake and an end surface for aligning and connecting with the brake drum 1.
In order to solve the heat dissipation problem, in this embodiment, besides the heat dissipation holes 13a are formed in the non-working contact surface area 13 of the brake drum 1, the wind blade ribs 13b with a predetermined shape are also designed in the non-working contact surface area 13 of the inner cavity of the brake drum 1, and the wind blade ribs 13b are also arranged along the periphery of the non-working contact surface area 13 and are arranged at intervals with the heat dissipation holes 13 a. The wind leaf ribs 13b can generate larger wind power during the running of the vehicle, and accelerate the air flow at the wheel edge, thereby quickly reducing the temperature at the wheel edge and achieving the heat dissipation effect.
In addition, a circle of positioning spigots 15 are arranged on the outer end face of the brake drum 1, and the positioning spigots 15 are used for improving the positioning precision of installation between the brake drum 1 and a wheel, so that the assembly efficiency is further improved.
The front axle brake drum and hub assembly structure of this embodiment, its assembly process is:
after the front axle finishes assembling the steering knuckle and the brake, the hub assembly can be assembled in sequence, the locking nut fixes the hub assembly, the concave teeth of the brake drum are aligned with the convex teeth of the hub, and the brake drum is fastened through 4 bolts to finish assembling.
The front axle brake drum and hub assembly structure of this embodiment has the following several main structural features:
1) the brake drum integrates a part of the original hub structure, and the weight is lighter.
2) The air flap rib is uniformly arranged in the non-working contact surface area of the inner cavity of the brake drum, and can generate large wind power when a vehicle runs, so that the air flow in the wheel edge is accelerated, the temperature of each part on the wheel edge can be quickly reduced, and the rib can also play a role in improving the strength of the brake drum.
3) Brake drum and wheel hub's connection adopt unsmooth complex terminal surface tooth structure, and this structure can guarantee that transmission moment is more reliable to construction bolt quantity is reduced by 10 and is 4, improves assembly efficiency greatly, and it is more convenient to dismantle.
4) A boss spigot is designed on the brake drum to position and be used for mounting the wheel, and the positioning precision is high.
5) The non-working contact surface area of the brake drum and the wheel disk mounting surface are respectively provided with a heat dissipation hole and a weight reduction counter bore, so that the weight is lighter.
6) The hub is regular in shape, imbalance control is facilitated, and vehicle resonance is reduced.
In summary, although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (7)
1. A front axle brake drum and hub assembly structure is characterized in that,
the brake drum and the hub are assembled and connected through end face teeth and bolt pieces;
the brake drum is characterized in that the non-working contact surface area, close to the wheel edge, of the brake drum is provided with heat dissipation holes, the non-working contact surface area, close to the wheel edge, of the inner cavity of the brake drum is provided with wind blade ribs, and the wind blade ribs and the heat dissipation holes are arranged at intervals in the circumferential direction.
2. A front axle brake drum and hub assembly arrangement according to claim 1,
and a circle of positioning spigot aligned with the wheel is arranged on the outer end surface of the brake drum.
3. A front axle brake drum and hub assembly arrangement according to claim 1,
the whole body of the wheel hub is of a cylindrical structure and is provided with a cylindrical core for installing a brake and an end face for being in alignment connection with the brake drum.
4. A front axle brake drum and hub assembly arrangement according to claim 1,
the brake drum with the face tooth structure of wheel hub includes: the brake drum comprises a hub, a brake drum and a wheel hub, wherein concave end face teeth are uniformly distributed on the end face of an inner cavity of the brake drum along the circumferential direction, and convex end face teeth are arranged on the end face of the wheel hub.
5. A front axle brake drum and hub assembly arrangement according to claim 4,
concave type terminal surface tooth is four groups, follows the fan-shaped evenly distributed of inner chamber terminal surface circumference of brake drum, and is corresponding, protruding type terminal surface tooth is four groups together, personally submits the fan-shaped evenly distributed of circumference along the wheel hub outer end.
6. A front axle brake drum and hub assembly arrangement according to claim 1,
the bolt pieces are four sets, and comprise four pairs of bolt holes correspondingly arranged on the concave end face teeth and the convex end face teeth and bolts penetrating through the four pairs of bolt holes.
7. A front axle brake drum and hub assembly arrangement according to claim 1,
a weight-reducing counter bore is formed in the wheel disc mounting surface of the brake drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121546523.8U CN215097516U (en) | 2021-07-08 | 2021-07-08 | Front axle brake drum and wheel hub subassembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121546523.8U CN215097516U (en) | 2021-07-08 | 2021-07-08 | Front axle brake drum and wheel hub subassembly structure |
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| Publication Number | Publication Date |
|---|---|
| CN215097516U true CN215097516U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121546523.8U Active CN215097516U (en) | 2021-07-08 | 2021-07-08 | Front axle brake drum and wheel hub subassembly structure |
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| CN (1) | CN215097516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116588046A (en) * | 2023-07-18 | 2023-08-15 | 中国重汽集团济南动力有限公司 | Axle wheel end structure capable of realizing active ventilation and cooling, axle and vehicle |
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2021
- 2021-07-08 CN CN202121546523.8U patent/CN215097516U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116588046A (en) * | 2023-07-18 | 2023-08-15 | 中国重汽集团济南动力有限公司 | Axle wheel end structure capable of realizing active ventilation and cooling, axle and vehicle |
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Address after: No.99 Fushan Road, Laiyang Economic Development Zone, Yantai City, Shandong Province Patentee after: Weichai New Energy Commercial Vehicle Co.,Ltd. Address before: No.99 Fushan Road, Laiyang Economic Development Zone, Yantai City, Shandong Province Patentee before: Shandong Automobile Manufacturing Co.,Ltd. |