CN108327462B - Driving axle wheel edge structure, front axle system and vehicle - Google Patents
Driving axle wheel edge structure, front axle system and vehicle Download PDFInfo
- Publication number
- CN108327462B CN108327462B CN201810288667.4A CN201810288667A CN108327462B CN 108327462 B CN108327462 B CN 108327462B CN 201810288667 A CN201810288667 A CN 201810288667A CN 108327462 B CN108327462 B CN 108327462B
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- Prior art keywords
- driving
- drive
- flange
- spline
- internal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The invention provides a drive axle hub structure, a front axle system and a vehicle, wherein the drive axle hub structure comprises a drive half shaft, a drive flange and a hub, wherein the drive flange is fixedly connected with the hub, an external spline is arranged on the outer surface of the drive half shaft, an internal spline is arranged on an inner ring of the drive flange, the drive half shaft is inserted into the inner ring of the drive flange and is connected with the external spline, at least one tooth-missing structure is further arranged on the inner ring of the drive flange, and the number of the internal spline is smaller than that of the external spline. The driving axle wheel side structure, the front axle system and the vehicle provided by the invention can simplify maintenance procedures and save maintenance cost under the condition that the driving axle wheel side structure exceeds the rated load safety coefficient to cause damage of parts.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a driving axle wheel rim structure, a front axle system and a vehicle.
Background
The driving axle rim structure is used for distributing power transmitted by the transmission device to the driving wheels at the left side and the right side, so that the vehicle can run, is an essential ring in a vehicle transmission system, and plays a key role in driving the driving wheels of the vehicle.
In the running process of the vehicle, the whole vehicle transmission system bears extremely large torque force and impact load, and components in the transmission system are easy to damage. In the prior art, in order to protect large assembly parts such as a transfer case and a main speed reducer in a transmission system from being damaged, a driving half shaft in a wheel edge structure of a driving axle is used as the weakest part of the transmission system, and under the working condition of exceeding a rated load safety coefficient, the driving half shaft is overloaded and damaged first, so that the purpose of protecting the large assembly parts from being damaged is achieved.
However, in the replacement process after the drive axle shaft is damaged, the tire is removed, the knuckle belt brake assembly is removed, the drive axle shaft can be replaced, the drive axle shaft is replaced, the assembly is resumed in sequence, and finally, the four-wheel positioning is performed on the vehicle. The whole maintenance work user cannot independently finish the operation, and needs to go to a professional maintenance point, so that the replaced driving half shaft is high in price, and meanwhile, the maintenance process is complex and the maintenance cost is high.
Disclosure of Invention
The invention provides a driving axle wheel edge structure, a front axle system and a vehicle, which are used for solving the problem of high maintenance cost under the condition that parts are damaged due to the fact that the vehicle exceeds a rated load safety coefficient.
In order to solve the technical problems, the invention provides a driving axle wheel edge structure which is applied to a front axle system of a vehicle, and comprises a driving half shaft, a driving flange and a hub, wherein the driving flange is fixedly connected with the hub, an external spline is arranged on the outer surface of the driving half shaft, an internal spline is arranged on the inner ring of the driving flange, the driving half shaft is inserted into the driving flange and is connected with the external spline, at least one tooth-missing structure is further arranged on the inner ring of the driving flange, the tooth-missing structure is arranged in the internal spline, and the number of the internal spline is smaller than that of the external spline.
Optionally, the safe torque between the internal spline and the external spline is less than the safe torque of the drive half shaft.
Optionally, the at least one tooth missing structure is uniformly distributed in the internal spline.
Optionally, the length of the internal spline is in the range of 12-30 mm.
Optionally, the driving flange is provided with a plurality of first screw holes, the hub is provided with second screw holes corresponding to the first screw holes in number and positions, and the driving flange is connected with the hub through the first screw holes and the second screw holes through bolts.
Optionally, the internal spline is made of one of a forged aluminum alloy, cast steel and medium carbon alloy structural steel.
The present invention also provides a front axle system comprising a front axle assembly and a drive axle rim structure as described above, the drive axle shaft being connected to a side gear or inner axle shaft in the front axle assembly.
The invention also provides a vehicle comprising a front axle system as described above.
The invention provides a driving axle wheel edge structure which is applied to a front axle system of a vehicle, and comprises a driving half shaft, a driving flange and a hub, wherein the driving flange is fixedly connected with the hub, an external spline is arranged on the outer surface of the driving half shaft, an internal spline is arranged on an inner ring of the driving flange, the driving half shaft is inserted into the driving flange and is connected with the external spline, at least one tooth-missing structure is further arranged on the inner ring of the driving flange, the tooth-missing structure is arranged in the internal spline, and the number of the internal spline is smaller than that of the external spline. Therefore, the safety torque between the driving flange with the tooth-missing structure and the driving half shaft is reduced, so that the spline connection between the driving flange and the driving half shaft becomes the weakest link of the transmission system, and under the working condition that the transmission system of the vehicle exceeds the rated load safety coefficient, the driving flange is damaged firstly, so that other parts are protected. The driving flange is replaced without lifting the vehicle or special maintenance tools, the vehicle can be replaced after stopping, four-wheel positioning is not needed again after replacement and assembly are completed, maintenance procedures are greatly simplified, maintenance time is shortened, maintenance cost is saved, in addition, the driving flange is low in price, and the cost of replacing damaged parts in maintenance is further saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a wheel rim structure of a driving axle according to an embodiment of the present invention;
FIG. 2 is a front view of a prior art drive flange;
FIG. 3 is a side view of the drive flange of FIG. 1;
fig. 4 is a partial elevation view of the drive flange of fig. 1.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, in the driving axle rim structure provided by the embodiment of the invention, the driving axle rim structure 100 is applied to a front axle system of a vehicle, and comprises a driving half axle 110, a driving flange 120 and a hub 130, wherein the driving flange 120 is fixedly connected with the hub 130, an external spline is arranged on the outer surface of the driving half axle 110, an internal spline 121 is arranged on the inner ring of the driving flange 120, the driving half axle 110 is inserted into the inner ring of the driving flange 120 and is connected with the external spline, at least one tooth-missing structure 122 is further arranged on the inner ring of the driving flange 120, the at least one tooth-missing structure 122 is arranged in the internal spline 121, and the number of the internal spline 121 is smaller than that of the external spline.
The drive axle shafts 110 are a transmission structure for transmitting power to the wheel hubs 130 to drive the wheels in rotation. The driving half shaft 110 drives the driving flange 120 to rotate, so that the hub 130 fixed with the driving flange 120 is driven to rotate, and the effect of driving the wheels to rotate is achieved.
The driving half shaft 110 is in spline connection with the driving flange 120, specifically, in this embodiment, an external spline is disposed on the outer surface of the driving half shaft 110, an internal spline 121 is disposed on the inner ring of the driving flange 120, the driving half shaft 110 is inserted into the inner ring of the driving flange 120, so that the external spline and the internal spline 121 form spline connection, and the driving half shaft 110 drives the driving flange 120 to rotate through spline connection.
In the prior art, as shown in fig. 2, the inner ring of the driving flange is fully covered with the internal spline, and the internal spline is fully meshed with the external spline, and even the number of the internal spline and the external spline is intentionally increased to improve the connection strength, for example: under the condition that 25 teeth can meet the limit torque transmission requirement, 30 teeth are actually selected to enhance the connection strength of the driving flange and the diameter of the driving half shaft. In the driving axle rim structure 100 provided by the embodiment of the present invention, at least one tooth-missing structure 122 is further provided on the inner ring of the driving flange 120, the sum of the numbers of the tooth-missing structures 122 and the internal splines 121 is equal to the number of the external splines, and the shapes and sizes of the internal splines 121 and the external splines are adapted, for example: as shown in fig. 3 and 4, there are 5 tooth missing structures 122, and 5 tooth missing structures 122 are disposed between the internal splines 121. In the embodiment of the invention, the drive flange 120 with the tooth-missing structure 122 can be directly connected with the drive half shaft spline of the existing structure by adopting the tooth-missing structure 122 instead of adopting a tooth-missing mode, and the external spline of the existing drive half shaft is not required to be modified, so that the universality of the drive flange 120 is improved, and the modification cost is reduced.
By replacing the original position of the internal spline with the tooth missing structure 122, the number of the internal spline and the external spline is intentionally reduced, so that the coupling strength between the driving flange 120 and the driving half shaft 110 is reduced, in the embodiment, the safety torque between the internal spline 121 and the external spline is smaller than that of the driving half shaft, so that the coupling between the driving flange 120 and the driving half shaft 110 becomes the weakest link in the transmission system, and under the working condition that the transmission system of the vehicle exceeds the rated load safety coefficient, the driving flange 120 is damaged firstly to protect other parts including the driving half shaft 110. It should be noted that, although the coupling strength between the driving flange 120 and the driving half shaft 110 is reduced in the embodiment of the present invention, the coupling strength between the driving flange 120 and the driving half shaft 110 is still not lower than the minimum coupling strength between the driving flange and the driving half shaft in the vehicle standard.
Firstly, because the driving flange 120 is arranged on the outer side of the wheel, after the driving flange 120 is damaged, a driver stops the vehicle at the roadside to replace the driving flange 120, and a special maintenance tool or a special maintenance point is not needed for maintenance, so that the limitation of a maintenance site is avoided, and the maintenance flexibility is improved; secondly, the driving half shaft can be replaced after the tire is removed and the knuckle belt brake assembly is removed without the need of replacing the driving half shaft in the prior art in the process of replacing the driving flange 120, and the driving half shaft is replaced and then assembled again in sequence, and finally the vehicle is subjected to four-wheel positioning and other steps, so that the maintenance procedure is greatly slowed down, the maintenance time is shortened, and the maintenance cost is saved. In addition, the price of replacing the driving flange is lower than that of replacing the driving half shaft in the prior art, and the cost of replacing damaged parts in maintenance is further saved.
Optionally, the at least one tooth missing structure 122 is uniformly distributed in the internal spline 121. By uniformly distributing the at least one tooth-missing structure 122 in the inner ring of the driving flange 120, the plurality of internal splines 121 are uniformly stressed, and the service life of the internal splines 121 is prolonged on the premise that the safety torque between the internal splines 121 and the external splines is smaller than that of the driving half shaft.
Further, the number of internal splines 121 that are required to be determined between the safe torque of the drive half shaft 110 and the minimum safe torque criteria of the vehicle drive flange 120 may also be understood as determining the number of tooth missing structures 122. The number of the internal splines 121 calculated is different due to different vehicles and different materials, and the number of the internal splines 121 finally obtained may not be an integer. In this embodiment, the internal spline 121 is made of one of a forged aluminum alloy, a cast steel, and a medium carbon alloy structural steel. In the case where the number of internal splines 121 is an integer when the internal splines 121 are made of wrought aluminum alloy, the data calculated for the internal splines 121 made of cast steel may not be an integer.
In the case where the data of the internal spline 121 is calculated not to be an integer, the integer number of internal splines 121 may be adjusted by adjusting the length of the internal spline 121. For example: if the calculation result is 12.36 internal splines, 12 internal splines 121 can be taken, and the length of the 12 internal splines 121 can be prolonged; alternatively, 13 internal splines 121 may be used, and the length of the 13 internal splines 121 may be shortened. In this embodiment, the length of the internal spline 121 ranges from 12 mm to 30 mm.
Optionally, the driving flange 120 is provided with a plurality of first screw holes, the hub 130 is provided with second screw holes corresponding to the first screw holes in number and positions, and the driving flange 120 is connected with the hub 130 through the first screw holes and the second screw holes by bolts.
In this embodiment, in order to facilitate the disassembly of the damaged driving flange 120, the driving flange 120 is bolted to the hub 130. In other embodiments of the present invention, the driving flange 120 and the hub 30 may be fixed by welding, clamping, screwing, etc., which is not limited in the present invention.
The embodiment of the invention also provides a front axle system, which comprises a front axle assembly and the driving axle wheel edge structure, wherein the driving axle is connected with an axle gear or an inner axle in the front axle assembly.
Since the structure of the front axle system body is the prior art, the specific structure of the driving axle rim structure is described in detail in the above embodiment, and therefore, the specific structure of the front axle system in this embodiment is not described again.
The invention also provides a vehicle comprising a front axle system as described above.
Since the structure of the vehicle body is the prior art, the structure of the front axle system is described in detail in the above embodiments, and therefore, the detailed description of the structure of the specific vehicle in this embodiment is omitted.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (7)
1. The driving axle wheel edge structure is applied to a front axle system of a vehicle and is characterized by comprising a driving half shaft, a driving flange and a hub, wherein the driving flange is fixedly connected with the hub, an external spline is arranged on the outer surface of the driving half shaft, an internal spline is arranged on an inner ring of the driving flange, the driving half shaft is inserted into the inner ring of the driving flange, the internal spline is connected with the external spline, at least one tooth-missing structure is further arranged on the inner ring of the driving flange, and the number of the internal spline is smaller than that of the external spline; the sum of the number of the tooth-missing structures and the number of the internal splines is equal to the number of the external splines, and the shapes and the sizes of the internal splines and the external splines are adapted; determining the number of internal splines between a safe torque for the drive half shaft and a standard for the lowest safe torque for the vehicle drive flange; under the condition that the internal spline data is not an integer, adjusting the length of the internal spline to obtain an integer number of internal splines; the safe torque between the internal spline and the external spline is less than the safe torque of the drive half shaft.
2. The drive axle rim structure of claim 1, wherein the at least one tooth missing structure is evenly distributed in the internal spline.
3. The drive axle rim structure of claim 1, wherein the internal spline has a length in the range of 12-30 millimeters.
4. The drive axle rim structure of claim 1, wherein the drive flange is provided with a plurality of first screw holes, the hub is provided with second screw holes corresponding to the first screw holes in number and positions, and the drive flange is connected with the hub through the first screw holes and the second screw holes.
5. The drive axle rim structure of claim 1, wherein the internal spline is made of one of wrought aluminum alloy, cast steel, and medium carbon alloy structural steel.
6. A front axle system comprising a front axle assembly and the transaxle rim structure of any one of claims 1-5, the drive axle shaft being connected to a side gear or inner axle shaft in the front axle assembly.
7. A vehicle comprising the front axle system of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810288667.4A CN108327462B (en) | 2018-04-03 | 2018-04-03 | Driving axle wheel edge structure, front axle system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810288667.4A CN108327462B (en) | 2018-04-03 | 2018-04-03 | Driving axle wheel edge structure, front axle system and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108327462A CN108327462A (en) | 2018-07-27 |
| CN108327462B true CN108327462B (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810288667.4A Active CN108327462B (en) | 2018-04-03 | 2018-04-03 | Driving axle wheel edge structure, front axle system and vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN108327462B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2333561Y (en) * | 1998-06-11 | 1999-08-18 | 重庆星德汽车贸易有限公司 | Light rear axle set of vehicle |
| JP2008303943A (en) * | 2007-06-06 | 2008-12-18 | Ntn Corp | Bearing device for wheel |
| JP2009083814A (en) * | 2007-10-03 | 2009-04-23 | Jtekt Corp | Wheel support apparatus |
| CN103253082A (en) * | 2013-02-04 | 2013-08-21 | 三一汽车制造有限公司 | Drive axle and engineering machine |
| CN103568718A (en) * | 2012-07-24 | 2014-02-12 | 洪泽县汽车半轴制造有限公司 | Half rear axle of truck |
| CN203697862U (en) * | 2013-12-26 | 2014-07-09 | 江西江铃底盘股份有限公司 | Connecting structure of automobile rear drive axle wheel-side |
| CN205344378U (en) * | 2016-01-08 | 2016-06-29 | 北京长城华冠汽车科技股份有限公司 | But disconnected driven half shaft and car |
| CN205818808U (en) * | 2016-06-08 | 2016-12-21 | 浙江春风动力股份有限公司 | The attachment structure of a kind of semiaxis and wheel mounting bracket and apply its automobile |
| CN206201841U (en) * | 2016-09-24 | 2017-05-31 | 上海科曼车辆部件***股份有限公司 | Wheel side power transmission shaft |
| CN207059640U (en) * | 2017-08-14 | 2018-03-02 | 北京汽车研究总院有限公司 | A kind of semiaxis fracture protecting device and vehicle |
| CN208306267U (en) * | 2018-04-03 | 2019-01-01 | 北京汽车研究总院有限公司 | A kind of drive axle wheel edge structure, preceding bridge system and vehicle |
-
2018
- 2018-04-03 CN CN201810288667.4A patent/CN108327462B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2333561Y (en) * | 1998-06-11 | 1999-08-18 | 重庆星德汽车贸易有限公司 | Light rear axle set of vehicle |
| JP2008303943A (en) * | 2007-06-06 | 2008-12-18 | Ntn Corp | Bearing device for wheel |
| JP2009083814A (en) * | 2007-10-03 | 2009-04-23 | Jtekt Corp | Wheel support apparatus |
| CN103568718A (en) * | 2012-07-24 | 2014-02-12 | 洪泽县汽车半轴制造有限公司 | Half rear axle of truck |
| CN103253082A (en) * | 2013-02-04 | 2013-08-21 | 三一汽车制造有限公司 | Drive axle and engineering machine |
| CN203697862U (en) * | 2013-12-26 | 2014-07-09 | 江西江铃底盘股份有限公司 | Connecting structure of automobile rear drive axle wheel-side |
| CN205344378U (en) * | 2016-01-08 | 2016-06-29 | 北京长城华冠汽车科技股份有限公司 | But disconnected driven half shaft and car |
| CN205818808U (en) * | 2016-06-08 | 2016-12-21 | 浙江春风动力股份有限公司 | The attachment structure of a kind of semiaxis and wheel mounting bracket and apply its automobile |
| CN206201841U (en) * | 2016-09-24 | 2017-05-31 | 上海科曼车辆部件***股份有限公司 | Wheel side power transmission shaft |
| CN207059640U (en) * | 2017-08-14 | 2018-03-02 | 北京汽车研究总院有限公司 | A kind of semiaxis fracture protecting device and vehicle |
| CN208306267U (en) * | 2018-04-03 | 2019-01-01 | 北京汽车研究总院有限公司 | A kind of drive axle wheel edge structure, preceding bridge system and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108327462A (en) | 2018-07-27 |
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Effective date of registration: 20200506 Address after: 100130 Zhaofeng Town, Shunyi District, Beijing Zhaofeng industrial base Tongxin Road No. 1 Applicant after: BAIC GROUP ORV Co.,Ltd. Address before: 101300, 99, Shuanghe Avenue, Renhe Town, Beijing, Shunyi District Applicant before: BEIJING AUTOMOBILE RESEARCH GENERAL INSTITUTE Co.,Ltd. |
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