CN215096811U - Lightweight drive shaft assembly and wheel hub bearing connection structure - Google Patents
Lightweight drive shaft assembly and wheel hub bearing connection structure Download PDFInfo
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- CN215096811U CN215096811U CN202120999621.0U CN202120999621U CN215096811U CN 215096811 U CN215096811 U CN 215096811U CN 202120999621 U CN202120999621 U CN 202120999621U CN 215096811 U CN215096811 U CN 215096811U
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- 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
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Abstract
The utility model belongs to the technical field of automobile transmission system, concretely relates to lightweight drive shaft assembly and wheel hub bearing connection structure, including drive shaft, wheel hub bearing, semi-axis bolt, first lock solid glue film and second lock solid glue film. The first connecting shaft at the end part of the driving shaft is provided with a first connecting hole; the hub bearing is provided with a second connecting hole and is detachably connected to the first connecting shaft; the half shaft bolt comprises an end cover and a second connecting shaft detachably connected to the first connecting hole; the end cover is abutted against the hub bearing and used for keeping the driving shaft and the hub bearing relatively fixed; the first locking glue layer is arranged between the half-axle bolt and the driving shaft; the second locking glue layer is located between the hub bearing and the driving shaft. The lightweight drive shaft assembly and hub bearing connecting structure of the utility model has light weight, and can reduce oil consumption; the suspension control arm does not need to be disassembled during maintenance, the disassembly and assembly torque is small, and the maintenance efficiency is high; the structure is firm, the risk of connection failure is avoided, and abnormal sound of vehicle starting is eliminated.
Description
Technical Field
The utility model relates to an automobile transmission system technical field especially relates to a lightweight drive shaft assembly and wheel hub bearing connection structure.
Background
The conventional vehicle drive force transmission path is: the engine power is transmitted to the transmission, then to the drive shaft, then to the hub bearing and finally to the wheels. The driving shaft penetrates through the hub bearing, and the driving shaft and the hub bearing are fixed by adopting a half-shaft nut, so that the connection between the driving shaft and the hub bearing is easy to lose efficacy under the condition of a severe road; when the vehicle starts from a standstill, the driving shaft and the matching surface of the hub bearing slide in the circumferential direction at a small angle, and abnormal vehicle starting noise is generated between the matching surfaces due to friction.
Moreover, the drive shaft is provided with an external thread section, so that the suspension control arm needs to be detached during maintenance, the hub bearing needs to be pulled to one side, and an axial space can be made available, so that the drive shaft can be withdrawn from the internal spline of the hub bearing to the other side, the maintenance workload is large, and the maintenance efficiency is low; the mounting torque of the half-shaft nut is generally 300 Nm-500 Nm, the mounting torque is large, a large-torque tightening machine is needed to complete the assembly of the drive shaft assembly, and the assembly and the disassembly are difficult; in addition, the size of the drive shaft threaded section and the half shaft nut is generally M20-M24, which results in a large total weight of the drive shaft assembly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lightweight drive shaft assembly and wheel hub bearing connection structure, the structure is light in weight, helps the whole car to reduce the weight, reduces the oil consumption, improves the driving range; the suspension control arm does not need to be disassembled during maintenance, the mounting and dismounting torque is small, a large-torque tightening machine is not needed, the maintenance workload is small, and the maintenance efficiency is high; the structure is firm, the driving shaft and the hub bearing have no risk of connection failure, and abnormal sound of vehicle starting is eliminated.
To achieve the purpose, the utility model adopts the following technical proposal:
a lightweight drive shaft assembly and hub bearing connection structure, comprising:
the end part of the driving shaft is provided with a first connecting shaft, and one end of the first connecting shaft is provided with an opening and communicated with the first connecting hole;
the hub bearing is provided with a second connecting hole and is detachably connected to the first connecting shaft;
a half axle bolt including an end cap and a second connecting shaft, the end cap fixedly connected to the second connecting shaft, the second connecting shaft detachably connected to the first connecting hole, the end cap abutting an end of the hub bearing remote from the drive shaft, the end cap configured to keep the drive shaft and the hub bearing relatively fixed;
a first locking glue layer disposed between the half axle bolt and the drive shaft, the first locking glue layer configured to secure the half axle bolt and the drive shaft; and
a second locking glue layer disposed between the hub bearing and the drive shaft, the second locking glue layer configured to secure the hub bearing and the drive shaft.
As a preferred structure of the utility model, its characterized in that, the second connecting axle is provided with the external screw thread, first connecting hole is provided with the internal thread, the half axle bolt with drive shaft threaded connection.
As a preferred structure of the utility model, first connecting shaft is provided with external splines, the second connecting hole is provided with internal splines, the drive shaft with wheel hub bearing spline connects.
As the utility model discloses a preferred structure, second lock solid glue film coat in first connecting axle on the external splines, second lock solid glue film is followed the axial extension of first connecting axle.
As a preferred structure of the utility model, first locking glue layer coat in on the second connecting axle.
As a preferred structure of the present invention, the driving shaft further includes a first end surface, and the first end surface is located at the other end of the first connecting shaft away from the half-shaft bolt; the wheel hub bearing still includes the second terminal surface, the second terminal surface set up in the wheel hub bearing keeps away from the other end of half axle bolt, first terminal surface butt the second terminal surface.
As an optimized structure of the present invention, the end cap and the second connecting shaft are integrally formed.
As an optimized structure of the utility model, the width of the first locking glue layer is 10mm ~ 14 mm.
As an optimized structure of the utility model, the first lock solid glue film with the distance between the second connecting shaft tip is 3mm ~ 5 mm.
As a preferred structure of the utility model, the semi-axis bolt still includes the enhancement section, the enhancement section includes the conical surface, the conical surface is connected respectively the end cover with the second connecting axle.
The utility model has the advantages that: the utility model provides a lightweight drive shaft assembly and wheel hub bearing connection structure has cancelled the external screw thread section of drive shaft, sets up first connecting hole on the first connecting axle that is used for connecting the wheel hub bearing to adopt half axle bolt to fix, the axial length of drive shaft can shorten about 40mm ~ 50mm, consequently, has reduced the total weight of drive shaft assembly greatly, helps whole car to fall heavy, reduces the oil consumption, improves the continuation of the journey mileage; during maintenance, the half shaft bolt is removed, the driving shaft assembly rotates in a certain direction, an axial space is made available, the driving shaft can be removed without disassembling a suspension control arm, maintenance workload is greatly reduced, and maintenance efficiency is high; because the half-shaft bolt is adopted, the mounting and dismounting torque is smaller, a large-torque tightening machine is not needed, and the cost is reduced; a first locking glue layer is arranged between the half shaft bolt and the driving shaft, so that the half shaft bolt and the driving shaft can be prevented from loosening, and the driving shaft and the hub bearing are free of connection failure risk; a second locking glue layer is arranged between the driving shaft and the hub bearing, and the matching surfaces of the driving shaft and the hub bearing cannot slide relatively, so that abnormal vehicle starting noise caused by friction is avoided.
Drawings
Fig. 1 is a structural sectional view of a connection structure of a lightweight drive shaft assembly and a hub bearing provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a driving shaft assembly provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a hub bearing provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a half-axle bolt provided by an embodiment of the present invention.
In the figure:
1. a drive shaft; 11. a first connecting shaft; 12. a first connection hole; 13. a first end face; 2. a hub bearing; 21. a second connection hole; 22. a second end face; 3. a half-shaft bolt; 31. an end cap; 32. a second connecting shaft; 33. and a reinforcing section.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1-4, the embodiment of the utility model provides a lightweight drive shaft assembly and wheel hub bearing connection structure, including drive shaft 1, wheel hub bearing 2, half axle bolt 3, first lock solid glue film and second lock solid glue film. The end of the driving shaft 1 is provided with a first connecting shaft 11, and one end of the first connecting shaft 11 has an opening and communicates with a first connecting hole 12. The hub bearing 2 is provided with a second connecting hole 21, and the hub bearing 2 is detachably connected with the first connecting shaft 11. The half-axle bolt 3 comprises an end cover 31 and a second connecting shaft 32, the end cover 31 is fixedly connected with the second connecting shaft 32, the second connecting shaft 32 is detachably connected with the first connecting hole 12, the end cover 31 abuts against one end, far away from the driving shaft 1, of the hub bearing 2, and the end cover 31 is used for keeping the driving shaft 1 and the hub bearing 2 relatively fixed. Preferably, the second connecting shaft 32 adopts M10-M14, and is light in weight. The first locking glue layer is provided between the half-shaft bolt 3 and the drive shaft 1, and the first locking glue layer is configured to fasten the half-shaft bolt 3 and the drive shaft 1. A second layer of locking glue is arranged between the hub bearing 2 and the drive shaft 1, the second layer of locking glue being configured to secure the hub bearing 2 and the drive shaft 1.
The utility model discloses lightweight drive shaft assembly and wheel hub bearing connection structure has cancelled the external screw thread section of drive shaft 1, sets up first connecting hole 12 on the first connecting axle 11 that is used for connecting wheel hub bearing 2 to adopt half axle bolt 3 to fix, the axial length of drive shaft 1 can shorten about 40mm ~ 50mm, consequently, has reduced the total weight of drive shaft assembly greatly, helps whole car to fall heavy, reduces the oil consumption, improves the continuation of the journey mileage; during maintenance, the half shaft bolt 3 is removed, the driving shaft assembly rotates in a certain direction, an axial space is made available, the driving shaft 1 can be removed without detaching a suspension control arm, the maintenance workload is greatly reduced, and the maintenance efficiency is high; because the half-shaft bolt 3 is adopted, the mounting and dismounting torque is small, a large-torque tightening machine is not needed, and the cost is reduced; a first locking glue layer is arranged between the half shaft bolt 3 and the driving shaft 1, so that the half shaft bolt 3 and the driving shaft 1 cannot be loosened, the reliability is improved, and the driving shaft 1 and the hub bearing 2 have no risk of connection failure; a second locking glue layer is arranged between the hub bearing 2 and the driving shaft 1, so that relative sliding cannot be generated between matching surfaces of the hub bearing 2 and the driving shaft 1, and abnormal vehicle starting noise generated by friction is eliminated.
Further, the second connecting shaft 32 is provided with an external thread, the first connecting hole 12 is provided with an internal thread, and the half bolt 3 is threadedly connected to the drive shaft 1. Through threaded connection, dismouting half axle bolt 3 is comparatively convenient.
Further, the first connecting shaft 11 is provided with an external spline, the second connecting hole 21 is provided with an internal spline, and the driving shaft 1 is splined to the hub bearing 2.
Further, a second glue locking layer is coated on the external spline of the first connecting shaft 11, and the second glue locking layer extends along the axial direction of the first connecting shaft 11. Through coating second lock solid glue film on the external splines of drive shaft 1, then with drive shaft 1 and wheel hub bearing 2 assembly together, because the spline gap is whole to be filled by the locking glue, when the vehicle starts, can avoid appearing the slip of circumferencial direction between the fitting surface of drive shaft 1 and wheel hub bearing 2 to eliminate the car start abnormal sound, promote the NVH (noise, vibration and sound roughness) quality of whole car, promote customer satisfaction. Preferably, the locking glue is coated on the external spline of the driving shaft 1 and left standing for 24 hours, and the second locking glue layer can be formed after the locking glue is completely solidified.
Further, the first locking glue layer is coated on the second connecting shaft 11 in an abutting mode. The first locking glue layer is coated on the second connecting shaft 11, so that the operation is facilitated.
Further, the driving shaft 1 further includes a first end surface 13, and the first end surface 13 is connected to the other end of the first connecting shaft 11 away from the half-shaft bolt 3; the hub bearing 2 further comprises a second end face 22, the second end face 22 is arranged at the other end, away from the half-shaft bolt 3, of the hub bearing 2, and the first end face 13 abuts against the second end face 22. When the axle bolt 3 is tightened to relatively fix the hub bearing 2 and the drive shaft 1, the first end surface 13 abuts against the second end surface 22.
Furthermore, the width of the first locking glue layer is 10 mm-14 mm. The first locking glue layer with the width of 10 mm-14 mm has enough locking force. In other embodiments, the first locking glue layer with other widths may be selected according to the length of the half bolt 3, which is not limited to this embodiment.
Further, the distance between the first locking glue layer and the end of the second connecting shaft 32 is 3 mm-5 mm. The assembly of the half shaft bolt 3 and the driving shaft 1 is prevented from being influenced by excessive locking glue.
Further, the half-axle bolt 3 further comprises a reinforcing section 33, the reinforcing section 33 is provided with a conical surface, and the conical surface is connected with the end cover 31 and the second connecting shaft 32; the end cap 31 and the second connecting shaft 32 are integrally formed. As shown in fig. 4, the reinforcing segment 33 improves the overall strength of the side bolt 3, and prevents breakage between the end cover 31 and the second connecting shaft 32.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a lightweight drive shaft assembly and wheel hub bearing connection structure which characterized in that includes:
the driving shaft (1), the end of the driving shaft (1) is provided with a first connecting shaft (11), and one end of the first connecting shaft (11) is provided with an opening and communicated with a first connecting hole (12);
the hub bearing (2), the hub bearing (2) is provided with a second connecting hole (21), and the hub bearing (2) is detachably connected to the first connecting shaft (11);
a half axle bolt (3), the half axle bolt (3) comprising an end cap (31) and a second connecting shaft (32), the end cap (31) being fixedly connected to the second connecting shaft (32), the second connecting shaft (32) being detachably connected to the first connecting hole (12), the end cap (31) abutting an end of the hub bearing (2) remote from the drive shaft (1), the end cap (31) being configured to keep the drive shaft (1) and the hub bearing (2) relatively fixed;
a first locking glue layer disposed between the half-shaft bolt (3) and the drive shaft (1), the first locking glue layer configured to secure the half-shaft bolt (3) and the drive shaft (1); and
a second locking glue layer disposed between the hub bearing (2) and the drive shaft (1), the second locking glue layer configured to secure the hub bearing (2) and the drive shaft (1).
2. The lightweight driveshaft assembly and hub bearing connection structure according to claim 1, characterized in that the second connecting shaft (32) is provided with an external thread, the first connecting hole (12) is provided with an internal thread, and the half bolt (3) and the driveshaft (1) are threadedly connected.
3. The lightweight drive shaft assembly and hub bearing connection structure of claim 1, wherein the first connection shaft (11) is provided with an external spline, the second connection hole (21) is provided with an internal spline, and the drive shaft (1) and the hub bearing (2) are spline-connected.
4. The connecting structure of a lightweight drive shaft assembly and a hub bearing as set forth in claim 3, wherein the second glue locking layer is coated on the external spline of the first connecting shaft (11), and the second glue locking layer extends along the axial direction of the first connecting shaft (11).
5. The lightweight drive shaft assembly and hub bearing connection structure of claim 1, wherein the first locking glue layer is coated on the second connection shaft (32).
6. The lightweight driveshaft assembly and hub bearing connection structure according to claim 1, wherein the driveshaft (1) further includes a first end surface (13), the first end surface (13) being located at the other end of the first connecting shaft (11) away from the axle stud (3); the wheel hub bearing (2) further comprises a second end face (22), the second end face (22) is arranged at the other end, far away from the half-shaft bolt (3), of the wheel hub bearing (2), and the first end face (13) is abutted to the second end face (22).
7. The lightweight driveshaft assembly and hub bearing connection structure of any one of claims 1 to 6, wherein the end cap (31) and the second connecting shaft (32) are integrally formed.
8. The lightweight drive shaft assembly and hub bearing connection structure of any one of claims 1-6, wherein the width of the first locking glue layer is 10mm to 14 mm.
9. The connecting structure of the lightweight drive shaft assembly and the hub bearing as recited in any one of claims 1 to 6, wherein the distance between the first locking glue layer and the end of the second connecting shaft (32) is 3mm to 5 mm.
10. The lightweight driveshaft assembly and hub bearing connection structure according to any one of claims 1 to 6, characterized in that the side bolt (3) further includes a reinforcement section (33), and the reinforcement section (33) includes conical surfaces that connect the end cover (31) and the second connecting shaft (32), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120999621.0U CN215096811U (en) | 2021-05-11 | 2021-05-11 | Lightweight drive shaft assembly and wheel hub bearing connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120999621.0U CN215096811U (en) | 2021-05-11 | 2021-05-11 | Lightweight drive shaft assembly and wheel hub bearing connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215096811U true CN215096811U (en) | 2021-12-10 |
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ID=79295584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120999621.0U Active CN215096811U (en) | 2021-05-11 | 2021-05-11 | Lightweight drive shaft assembly and wheel hub bearing connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215096811U (en) |
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2021
- 2021-05-11 CN CN202120999621.0U patent/CN215096811U/en active Active
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