CN221090376U - Lightweight front axle structure - Google Patents
Lightweight front axle structure Download PDFInfo
- Publication number
- CN221090376U CN221090376U CN202323458661.2U CN202323458661U CN221090376U CN 221090376 U CN221090376 U CN 221090376U CN 202323458661 U CN202323458661 U CN 202323458661U CN 221090376 U CN221090376 U CN 221090376U
- Authority
- CN
- China
- Prior art keywords
- hub
- frame
- front axle
- bearing
- hub frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005266 casting Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model provides a lightweight front axle structure, which comprises: a front axle, one side of which is provided with a tie rod; the brake drum comprises a hub unit and a bearing unit, wherein the hub unit comprises an outer hub frame and an inner hub frame, the outer hub frame is sleeved on the outer side of the inner hub frame, the bearing unit is arranged between the outer hub frame and the inner hub frame, and the bearing unit comprises a first bearing and a second bearing which are adjacently arranged; the hub end cover comprises a hub body and an end cover body which are connected, wherein the end cover body is in an arc-shaped structure, the hub flange and the bearing unit are connected with a split structure, the lightweight hub flange and the integral bearing unit are adopted, the weight of the hub end is reduced, the service life of the hub is prolonged, the hub adopts a petal-shaped structure, the hub end cover and the hub are directly designed into an integral structure, and the hub end cover and the hub are cast into an integral structure without separate processing and installation, so that the tightness of the hub end is improved.
Description
Technical Field
The utility model belongs to the technical field, and particularly relates to a lightweight front axle structure.
Background
At present, the front axle of the automobile bears the vertical load, longitudinal force and lateral force between the frame and the ground, and ensures that the steering wheel moves correctly. The existing front axle assembly adopts an integral hub, a first bearing and a second bearing are required to be pressed into the hub respectively when the hub bearing is installed, the design size of the hub and a steering knuckle is greatly increased by the interval between the first bearing and the second bearing, the weight is increased, the sealing performance of the bearing is poor, maintenance-free use cannot be met, a threaded screwing or bolt fastening mode is adopted between the hub end cover and the hub, the processing and installation procedures are increased, and the sealing performance of the wheel end is not easy to control.
Disclosure of utility model
The utility model provides a lightweight front axle structure, which solves the problems.
The technical scheme of the utility model is realized as follows: a lightweight front axle structure comprising:
a front axle, one side of which is provided with a tie rod;
The brake drum comprises a hub unit and a bearing unit, wherein the hub unit comprises an outer hub frame and an inner hub frame, the outer hub frame is sleeved on the outer side of the inner hub frame, the bearing unit is arranged between the outer hub frame and the inner hub frame, and the bearing unit comprises a first bearing and a second bearing which are adjacently arranged;
The hub end cover comprises a hub body and an end cover body which are connected, wherein the end cover body is in an arc-shaped arrangement.
As a preferred embodiment, the outer hub frame comprises a first outer hub frame and a second outer hub frame which are integrally connected, wherein the first outer hub frame is arranged close to the hub body, the inner hub frame comprises a first inner hub frame and a second inner hub frame, wherein the first inner hub frame is arranged close to the hub body, the first bearing is arranged between the first outer hub frame and the first inner hub frame, and the second bearing is arranged between the second outer hub frame and the second inner hub frame.
As a preferred embodiment, the hub body comprises a first hub connecting part, a second hub connecting part and a third hub connecting part, wherein the first hub connecting part is in a petal shape, the third hub connecting part is provided with a threaded hole for fixedly connecting with the hub unit through a bolt, the second hub connecting part is connected with the first hub connecting part and the third hub connecting part, and a plurality of casting pit grooves are uniformly distributed on the second hub connecting part along the circumference.
As a preferred embodiment, a spigot boss is provided at the edge of the second hub connection portion.
As a preferred embodiment, the front axle is asymmetrically arranged in an I shape, the cross-sectional area of the front end of the front axle is smaller than the cross-sectional area of the front end of the front axle, and the cross-sectional area of the rear end of the front axle is larger than the cross-sectional area of the rear end of the front axle.
As a preferred embodiment, a box-type oil seal is provided between the outer hub frame and the inner hub frame.
As a preferred embodiment, a knuckle is provided on one side of the brake drum, a kingpin is inserted into the knuckle, and the kingpin and the knuckle are connected by an upper needle bearing.
After the technical scheme is adopted, the utility model has the beneficial effects that:
1. The wheel end adopts a split structure of connecting the wheel hub flange and the bearing unit, adopts a lightweight wheel hub flange and an integral bearing unit, reduces the weight of the wheel end, improves the service life, adopts a petal-shaped structure, directly designs the wheel hub end cover and the wheel hub into an integral structure, does not need to be independently processed and installed during casting integral molding, and improves the tightness of the wheel end;
2. The air chamber is arranged above the steering knuckle to increase the steering angle, the steering knuckle assembly comprises an upper main pin hole and a lower main pin hole, the lower main pin hole adopts an integrated thrust damping bearing, the upper main pin hole adopts a needle bearing to be matched with an oil seal ring, the steering starting force is reduced, the stability of steering operation is improved, the friction resistance of the needle bearing is small, the suitability of a steering system is improved, and the service life and the maintenance period are prolonged.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic cross-sectional view of the front axle;
FIG. 4 is a schematic structural view of a hub unit;
FIG. 5 is a schematic view of the structure of a bearing unit;
FIG. 6 is a schematic structural view of a hub body;
FIG. 7 is another structural schematic view of the hub body;
Fig. 8 is a schematic structural view of a knuckle.
In the figure, 1-front axle; 2-tie rods; 3-wheel hubs; 4-a brake drum; 5-air chamber; 6-steering knuckle; 7-a brake assembly; 8-ABS gear ring; a 9-ABS sensor; 30-a hub unit; 31-a hub body; 32-an end cap body; 33-a bearing unit; 300-a first outer hub carrier; 301-a second outer hub carrier; 302-a first inner hub carrier; 303-a second inner hub carrier; 304-box type oil seal; 305-outer oil seal; 310-a first hub connection; 311-a second hub connection; 312-third hub connection; 313-dimple grooves; 314-spigot boss; 330-a first bearing; 331-a second bearing; 60-master pin; 61-upper needle bearings; 62-lower blanking cover; 63-integral thrust damping bearing.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
According to the fig. 2 to 8, a lightweight front axle structure includes:
a front axle 1, one side of which is provided with a tie rod 2;
the brake drum comprises a hub unit 30 and a bearing unit 33, wherein the hub unit 30 comprises an outer hub frame and an inner hub frame, the outer hub frame is sleeved on the outer side of the inner hub frame, the bearing unit 33 is arranged between the outer hub frame and the inner hub frame, and the bearing unit 33 comprises a first bearing 330 and a second bearing 331 which are adjacently arranged;
the hub end cover comprises a hub body 31 and an end cover body 32 which are connected, wherein the end cover body 32 is in an arc-shaped arrangement.
The outer hub frame comprises a first outer hub frame 300 and a second outer hub frame 301 which are integrally connected, wherein the first outer hub frame 300 is arranged close to the hub body 31, the inner hub frame comprises a first inner hub frame 302 and a second inner hub frame 303, wherein the first inner hub frame 302 is arranged close to the hub body 31, the first bearing 330 is arranged between the first outer hub frame 300 and the first inner hub frame 302, and the second bearing 331 is arranged between the second outer hub frame 301 and the second inner hub frame 303. A box oil seal 304 is provided between the outer hub frame and the inner hub frame.
The utility model realizes the sealing of the bearing inner cavity through the box type oil seal 304 and the outer oil seal, prevents impurities from entering and oil from overflowing, prevents abnormal abrasion of rolling bodies, and the outer hub frame is connected with the inner hub frame through the buckle.
The integrated bearing unit 33 is directly provided with a threaded hole and is connected with the first hub connecting part 310 through a bolt, so that the reliability and the tightness of the bearing unit 33 can be effectively improved compared with the traditional split installation of the bearing and the hub; the joint between the bearing unit 33 and the knuckle is sealed by an O-ring to prevent entry of foreign matter.
The hub body 31 comprises a first hub connecting portion 310, a second hub connecting portion 311 and a third hub connecting portion 312, wherein the first hub connecting portion 310 is arranged in a petal shape, a threaded hole is formed in the third hub connecting portion 312 and used for being fixedly connected with the hub unit 30 through a bolt, the second hub connecting portion 311 is connected with the first hub connecting portion 310 and the third hub connecting portion 312, and a plurality of casting pit grooves are uniformly formed in the second hub connecting portion 311 along the circumference. A spigot boss 314 is provided at an edge of the second hub connection portion 311.
The front axle 1 is in an asymmetric I-shaped arrangement, the cross-sectional area of the front top end of the front axle 1 is smaller than that of the front bottom end of the front axle 1, and the cross-sectional area of the rear top end of the front axle 1 is larger than that of the rear bottom end of the front axle 1. One side of the brake drum is provided with a knuckle, a main pin is inserted in the knuckle, and the main pin and the knuckle are connected through an upper needle bearing 61.
The utility model adopts a split maintenance-free hub structure, realizes maintenance-free wheel end, and realizes light weight of the wheel end by using a light-weight hub flange and an integral hub bearing. Because the hub flange and the bearing assembly adopt a split structure, the hub flange mounting surface adopts 8 petal-shaped structures and spigot bosses 314 to reduce the weight, and the hub transition surface is designed with 6 casting pit structures to reduce the weight of the hub under the condition of meeting the structural strength requirement. The hub end cover cancels the traditional screw fastening or screw-in type end cover structure, directly casts the hub end cover and the hub as an integral structure, improves the tightness of the wheel end, avoids the entry of impurities, reduces the types of parts, and does not need to independently process the installation position of the hub end cover.
The steering knuckle adopts the needle roller bearing and the integrated damping thrust bearing, reduces the steering starting moment of the front axle assembly, reduces the bearing abrasion, reduces the shimmy of the front axle 1, and improves the stability of the front axle assembly. The improved integrated damping bearing has the characteristics of small damping and good sealing property. The damping ring friction surface has the oil storage pit of rational distribution, evenly spreads the lubricating grease in the oil pit, and when the bearing was used, the lubricating grease in the oil storage pit lubricated the bearing friction surface, and it is useful to reduce the resistance that the car turned to, makes to turn to lighter.
The upper blanking cover is connected with the steering knuckle through a bolt, the lower blanking cover is arranged in a main pin hole of the steering knuckle through a clamp spring, a needle bearing and an oil seal ring are arranged in the main pin hole of the steering knuckle, an integrated damping bearing is pressed in the main pin hole of the steering knuckle, the steering knuckle is connected with the front axle 1 through a main pin and is fixed in position through a lock pin, a wedge brake is positioned and arranged on the steering knuckle through a spigot and is connected through a bolt, an ABS gear ring 8 is pressed on a bearing unit 33 and is fastened through a lock nut when being pressed into the steering knuckle shaft head together, a hub flange plate and a brake drum copper are connected onto a bearing unit 33 through a stud bolt and a nut to form a hub brake drum assembly.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (7)
1. A lightweight front axle structure, comprising:
a front axle, one side of which is provided with a tie rod;
The brake drum comprises a hub unit and a bearing unit, wherein the hub unit comprises an outer hub frame and an inner hub frame, the outer hub frame is sleeved on the outer side of the inner hub frame, the bearing unit is arranged between the outer hub frame and the inner hub frame, and the bearing unit comprises a first bearing and a second bearing which are adjacently arranged;
The hub end cover comprises a hub body and an end cover body which are connected, wherein the end cover body is in an arc-shaped arrangement.
2. The lightweight front axle structure of claim 1, wherein the outer hub frame comprises a first outer hub frame and a second outer hub frame integrally connected, wherein the first outer hub frame is disposed proximate to the hub body, the inner hub frame comprises a first inner hub frame and a second inner hub frame, wherein the first inner hub frame is disposed proximate to the hub body, the first bearing is disposed between the first outer hub frame and the first inner hub frame, and the second bearing is disposed between the second outer hub frame and the second inner hub frame.
3. The lightweight front axle structure of claim 1, wherein the hub body comprises a first hub connecting portion, a second hub connecting portion and a third hub connecting portion, wherein the first hub connecting portion is petal-shaped, a threaded hole is formed in the third hub connecting portion and is used for fixedly connecting with a hub unit through a bolt, the second hub connecting portion is connected with the first hub connecting portion and the third hub connecting portion, and a plurality of casting pit grooves are uniformly formed in the second hub connecting portion along the circumference.
4. A lightweight front axle construction as defined in claim 3, wherein the edge of the second hub connection portion is provided with a spigot boss.
5. The lightweight front axle structure of claim 1, wherein the front axle is asymmetrically configured in an i-shape, and the cross-sectional area of the front top end of the front axle is smaller than the cross-sectional area of the front bottom end of the front axle, and the cross-sectional area of the rear top end of the front axle is larger than the cross-sectional area of the rear bottom end of the front axle.
6. The lightweight front axle construction of claim 2, wherein a box oil seal is provided between the outer hub frame and the inner hub frame.
7. The light-weight front axle structure according to claim 1, wherein a knuckle is arranged on one side of the brake drum, a kingpin is inserted into the knuckle, and the kingpin and the knuckle are connected through an upper needle bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323458661.2U CN221090376U (en) | 2023-12-19 | 2023-12-19 | Lightweight front axle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323458661.2U CN221090376U (en) | 2023-12-19 | 2023-12-19 | Lightweight front axle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221090376U true CN221090376U (en) | 2024-06-07 |
Family
ID=91314340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323458661.2U Active CN221090376U (en) | 2023-12-19 | 2023-12-19 | Lightweight front axle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221090376U (en) |
-
2023
- 2023-12-19 CN CN202323458661.2U patent/CN221090376U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3339132B1 (en) | Central traction device for straddling monorail train | |
| CN103213455B (en) | Vehicle wheel hub assembly | |
| CN221090376U (en) | Lightweight front axle structure | |
| CN106891994B (en) | Agricultural machinery axle steering tie rod | |
| CN201747931U (en) | Brake drum double-layer sealing structure | |
| CN215409746U (en) | Pull rod bearing capable of adjusting center connection size in large range | |
| CN210027582U (en) | Automobile steering knuckle and hub assembly | |
| CN203126381U (en) | Maintenance-free wheel end type front steering axle assembly with disk brake structure | |
| CN201923205U (en) | Split type steering knuckle assembly | |
| CN201030846Y (en) | Air-braking drum type braking front axle | |
| CN220378672U (en) | Simple and reliable bearing nut | |
| CN116476959B (en) | Motorcycle pedal reinforcing and protecting structure | |
| CN215204335U (en) | Preceding upper front swing arm assembly | |
| CN210068743U (en) | Tie bar replaces welded pull rod bearing structure | |
| CN210063108U (en) | Knuckle assembly with blind hole at one end | |
| CN211519644U (en) | Automobile steering tie rod | |
| CN215205056U (en) | Automobile steering knuckle and swing arm matching mechanism | |
| CN216332274U (en) | Topology optimization steering knuckle for FSAE | |
| CN218806306U (en) | Motorcycle rocker arm assembly and motorcycle | |
| CN214118805U (en) | Suspension brake hub | |
| CN212360456U (en) | High anti vibration performance wheel hub unit | |
| CN216833047U (en) | Novel mounting structure of steering oil cylinder in drive axle | |
| CN212447777U (en) | High-performance maintenance-free transition swing arm assembly and heavy-duty car using same | |
| CN219198059U (en) | Rear axle wheel limit reduction gear casing | |
| CN220576962U (en) | Reinforced automobile hub |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |