Full-floating half shaft assembly and vehicle with same
By designing a fully floating half-axle assembly, the modification of the semi-floating half-axle is achieved by using the combination of adapter plates and ball heads, the modification difficulties caused by the structural differences between the semi-floating and fully floating half-axle are solved, convenient modification and maintenance are achieved, and the driving performance of the vehicle is maintained.
Patent Information
- Application Number
- CN202422344795.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The structural differences between the existing semi-floating half-axle and the fully floating half-axle are large, which makes it difficult to modify and cannot be conveniently modified on the semi-floating half-axle structure.
A fully floating semi-axle assembly is designed, including an adapter plate, a ball head and a half shaft. Through the combination of the ball head inner bushing, the ball head outer bushing and bearing, the fully floating connection of the half shaft is realized, and fixed to the substrate of the bridge pipe through the adapter plate, allowing direct modification on the semi-floating half shaft structure.
It realizes convenient modification of the fully floating half-axle assembly on the semi-floating half-axle structure, and is easy to assemble and repair, maintains the driving performance of the vehicle without the need for structural improvement of the bridge pipe.
Smart Images
Figure CN223237295U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automobile structures, in particular to a full-floating half-axle assembly and a vehicle having the same. Background Art
[0002] Axles are a crucial component in vehicle transmissions. In existing technology, there are two types of axle support: semi-floating and fully-floating. The difference between these two types lies in whether the axle supports the vehicle's bending moments. Semi-floating axles have a simpler structure, but they support not only torque but also bending moments. Full-floating axles, on the other hand, are more complex, but they only support torque and not bending moments. Therefore, fully-floating axles offer improved vehicle drivability.
[0003] The related structures near the half-axles between the semi-floating half-axles and the full-floating half-axles are quite different, and the two cannot be used interchangeably, which is not conducive to modification according to the needs of the car owner. Utility Model Content
[0004] In order to solve the above problems, the utility model provides a full-floating half-axle assembly and a vehicle having the same. The full-floating half-axle assembly can be easily modified on the structure of the semi-floating half-axle.
[0005] The utility model provides a fully floating half-axle assembly, including an adapter plate, a ball head and a half-axle, wherein the adapter plate is used to be fixed on the base plate of the bridge tube, the ball head is used to be arranged between the adapter plate and the wheel to connect the adapter plate and the wheel, and the half-axle can pass through the ball head and be fully floatingly connected to the ball head.
[0006] Furthermore, the ball head includes an inner ball head sleeve, an outer ball head sleeve and a bearing. The outer ball head sleeve is integrally formed on the adapter plate. The inner ball head sleeve extends into the outer ball head sleeve from the side of the outer ball head sleeve away from the bridge tube. The bearing is arranged between the inner ball head sleeve and the outer ball head sleeve. The inner ball head sleeve is used to be connected to the wheel. One end of the half-shaft passes through the ball head and the adapter plate and extends into the bridge tube. The other end of the half-shaft is dynamically connected to the inner sleeve, and the inner ball head sleeve is driven to rotate relative to the outer ball head sleeve through the half-shaft.
[0007] Furthermore, the bearing is a tapered bearing, which includes a first bearing, which includes a bearing inner sleeve and a bearing rolling kit, the bearing inner sleeve is fixedly connected to the ball head inner sleeve, and the bearing rolling kit is arranged between the bearing inner sleeve and the ball head outer sleeve.
[0008] Furthermore, a step surface is formed on the bearing inner sleeve so that the bearing inner sleeve has a sealing section and a bearing section. The sealing section is closer to the bridge tube direction than the bearing section, and the outer diameter of the sealing section is larger than the outer diameter of the bearing section. When the first bearing is installed in the ball head, the bearing rolling kit is arranged between the bearing section and the ball head outer sleeve, and the sealing section seals the inside of the ball head from the side where the first bearing is located.
[0009] Furthermore, the tapered bearing also includes a second bearing, which is arranged between the ball head inner sleeve and the ball head outer sleeve. The first bearing and the second bearing are arranged in sequence along the axial direction of the half shaft. The first bearing is closer to the bridge tube than the second bearing. A sealing ring is provided on the end face of the second bearing away from the first bearing to seal the ball head from the side of the second bearing away from the first bearing.
[0010] Furthermore, a connecting plate for connecting to a wheel is formed on the ball head inner bushing, and the full-floating half-axle assembly also includes an ABS signal ring gear, which is sleeved on the half-axle and clamped between the end face of the ball head outer bushing and the connecting plate.
[0011] Furthermore, the bearing is a cylindrical bearing, and the fully floating half-shaft assembly includes a sealing ring and an ABS signal gear ring. The ABS signal gear ring is located at the end of the cylindrical bearing facing the bridge tube, and the sealing ring is located at the end of the cylindrical bearing away from the bridge tube. The ABS signal gear ring is fixed on the ball head inner sleeve, and the ABS signal gear ring and the sealing ring seal the cylindrical bearing from both sides respectively.
[0012] Furthermore, a plurality of first gear teeth are formed on the side wall of the inner ring of the ball head liner, each of the first gear teeth extends along the axial direction of the ball head inner sleeve, and the plurality of first gear teeth are arranged in sequence along the circumference of the ball head inner sleeve. Second gear teeth are formed at positions corresponding to the half-shaft and the ball head inner sleeve, and the first gear teeth are combined with the second gear teeth to transmit the torque of the half-shaft to the ball head inner sleeve.
[0013] Furthermore, the fully-floating half-shaft assembly also includes a plug, which is arranged in the ball head inner sleeve and is located on the side of the half-shaft away from the bridge tube to seal the half-shaft.
[0014] Furthermore, a reinforcement block is provided on the adapter plate. The reinforcement block is arranged around the periphery of the ball head outer bushing and is connected to the outer side wall of the ball head outer bushing.
[0015] The utility model also provides a vehicle, comprising the above-mentioned full-floating half-axle assembly.
[0016] In summary, in the present invention, the adapter plate is provided so that it can be fixed to the base plate of the bridge tube and connected between the adapter plate and the wheel via a ball head. Specifically, the ball head outer bushing is integrally connected to the adapter plate. In combination with the ball head inner bushing and bearing connected to the ball head outer bushing, a fully floating connection of the half-axle can be achieved. This fully floating half-axle assembly can utilize existing technology, enabling it to be fixed to the base plate of the bridge tube in existing semi-floating half-axle assemblies. It is also relatively easy to assemble and maintain. It can be modified by replacing components in the structure of a semi-floating half-axle and has good market prospects.
[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In addition, in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 Shown is a schematic diagram of the shaft side structure of the full-floating half-shaft assembly provided by the first embodiment of the present utility model.
[0019] Figure 2 Shown Figure 1 Schematic diagram of the exploded structure of the full-floating half-shaft assembly.
[0020] Figure 3 Shown Figure 1 Schematic diagram of the front view of the full-floating half-shaft assembly.
[0021] Figure 4 Shown Figure 3 Schematic diagram of the cross-sectional structure along the IV-IV direction.
[0022] Figure 5 Shown Figure 4 Schematic diagram of the enlarged structure in the middle circle.
[0023] Figure 6 Shown Figure 2 Schematic diagram of the shaft side structure of the inner sleeve of the middle bearing.
[0024] Figure 7 Shown Figure 2 Schematic diagram of the axial structure of the ball head inner sleeve from the first perspective.
[0025] Figure 8 Shown Figure 2 Schematic diagram of the axial structure of the ball head inner sleeve from the second perspective.
[0026] Figure 9 Shown Figure 2 Schematic diagram of the axial structure of the transfer plate.
[0027] Figure 10 Shown is a schematic diagram of the shaft side structure of the full-floating half-shaft assembly provided by the second embodiment of the present utility model.
[0028] Figure 11 Shown Figure 10 Schematic diagram of the front view of the full-floating half-shaft assembly.
[0029] Figure 12 Shown Figure 11 Schematic diagram of the cross-sectional structure along the XII-XII direction. DETAILED DESCRIPTION
[0030] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description with reference to the accompanying drawings and preferred embodiments.
[0031] The utility model provides a full-floating half-axle assembly and a vehicle having the same. The full-floating half-axle assembly can be easily modified on the structure of a semi-floating half-axle.
[0032] Figure 1 The figure shows the shaft side structure diagram of the full floating half-axle assembly provided by the first embodiment of the present utility model. Figure 2 Shown Figure 1 Schematic diagram of the exploded structure of the full-floating half-shaft assembly. Figure 3 Shown Figure 1 Schematic diagram of the front view of the full-floating half-shaft assembly. Figure 4 Shown Figure 3 Schematic diagram of the cross-sectional structure along the IV-IV direction, Figure 5 Shown Figure 4 The enlarged structure diagram of the circle in the middle. Figures 1 to 5 As shown, the fully floating axle shaft assembly provided by the first embodiment of the present invention includes an adapter plate 30, a ball head 40, and an axle shaft 50. The adapter plate 30 is used to be fixed to the base plate 20 of the bridge tube 10 via a connecting structure (such as bolts and nuts). The ball head 40 is used to be disposed between the adapter plate 30 and a wheel (not shown) to connect the adapter plate 30 and the wheel. The axle shaft 50 can pass through the ball head 40 and is fully floatingly connected to the ball head. This fully floating connection means that during normal operation, the axle shaft only bears the vehicle's torque and does not bear the vehicle's bending moment.
[0033] More specifically, the ball joint 40 includes an inner ball joint bushing 41, an outer ball joint bushing 42, and a bearing. The outer ball joint bushing 42 is integrally formed on the adapter plate 30. The inner ball joint bushing 41 extends into the outer ball joint bushing 42 from the side of the outer ball joint bushing 42 away from the axle tube 10. The bearing is disposed between the inner ball joint bushing 41 and the outer ball joint bushing 42. The inner ball joint bushing 41 is used to connect to a wheel (not shown). One end of the axle shaft 50 passes through the bearing, the outer ball joint bushing 42, and the adapter plate 30, then extends into the axle tube 10 and connects to the reduction mechanism within the axle tube 10. The other end of the axle shaft 50 is power-connected to the inner ball joint bushing 41. That is, the torque on the axle shaft 50 is directly transmitted to the inner ball joint bushing 41. The inner ball joint bushing 41 is driven by the axle shaft 50 to rotate relative to the outer ball joint bushing 42.
[0034] Furthermore, by separately arranging the ball head inner bushing 41, the bearing and the ball head outer bushing 42, the assembly can be easily assembled and disassembled, and maintenance is facilitated.
[0035] Figure 6 Shown Figure 2 Please refer to the shaft side structure diagram of the inner sleeve of the middle bearing. Figure 2 、 Figure 5 and Figure 6 In this embodiment, the bearing can be a tapered bearing, which includes a first bearing 43 and a second bearing 44. The first bearing 43 and the second bearing 44 are arranged in sequence in the ball head 40 along the axial direction of the half shaft 50. The first bearing 43 is closer to the bridge tube 10 than the second bearing 44.
[0036] The first bearing 43 includes a bearing inner sleeve 431 and a bearing rolling element 432 . The bearing inner sleeve 431 is fixedly connected to the ball head inner sleeve 41 , and the bearing rolling element 432 is disposed between the bearing inner sleeve 431 and the ball head outer sleeve 42 .
[0037] like Figures 4 to 6 As shown, a stepped surface is formed on the bearing inner sleeve 431, forming a blocking section 4311 and a load-bearing section 4312. The blocking section 4311 is closer to the bridge tube 10 than the load-bearing section 4312, and the outer diameter of the blocking section 4311 is larger than that of the load-bearing section 4312. When the first bearing 43 is installed in the ball head 40, the bearing rolling element 432 is disposed between the load-bearing section 4312 of the bearing inner sleeve 431 and the ball head outer sleeve 42. The blocking section 4311 of the bearing inner sleeve 431 blocks the interior of the ball head 40 from the side where the first bearing 43 is located, preventing foreign matter from entering the ball head 40.
[0038] Furthermore, a thread is formed on the inner surface of the ball head inner bushing 41 (see Figure 8 ), the bearing inner sleeve 431 is connected to the ball head inner sleeve 41 through threaded fitting.
[0039] The bearing inner sleeve 431 is also provided with a through hole 4313 extending in a direction perpendicular to the axis of the bearing inner sleeve 431 . The through hole 4313 radially penetrates the bearing inner sleeve 431 and connects the outer and inner spaces of the bearing inner sleeve 431 for filling lubricating oil.
[0040] The second bearing 44 is directly arranged between the ball head inner sleeve 41 and the ball head outer sleeve 42. A sealing ring 441 is formed on the end face of the second bearing 44 away from the first bearing 43 to seal the inside of the ball head 40 from the side where the second bearing 44 is located.
[0041] Figure 7 Shown Figure 2 Schematic diagram of the axial structure of the ball head inner sleeve from the first perspective, Figure 8 Shown Figure 2 The axial structure diagram of the second angle of view of the inner sleeve of the ball head. Please continue to refer to Figure 2 、 Figure 5 、 Figure 7 and Figure 8 In this embodiment, a plurality of first gear teeth 411 are formed on the side wall of the inner ring of the ball head inner sleeve 41, and each first gear tooth 411 extends along the axial direction of the ball head inner sleeve 41. The plurality of first gear teeth 411 are arranged in sequence along the circumference of the ball head inner sleeve 41, and second gear teeth 51 are formed at positions corresponding to the half shaft 50 and the ball head inner sleeve 41. The combination of the first gear teeth 411 and the second gear teeth 51 transmits the torque of the half shaft 50 to the ball head inner sleeve 41.
[0042] Furthermore, the fully floating half-shaft assembly also includes a plug 61, which is arranged in the ball head inner sleeve 41 by means of threaded fitting, etc., and is fixed to the end of the half-shaft 50 away from the bridge tube 10 by means of bolt connection, etc., so as to seal the half-shaft 50, prevent the half-shaft 50 from falling out of the ball head inner sleeve 41, and prevent foreign debris from entering the ball head inner sleeve 41 and contacting the half-shaft 50.
[0043] Figure 9 Shown Figure 2 Schematic diagram of the shaft side structure of the transfer plate. Please continue to refer to Figure 9 A reinforcement block 31 is also provided on the adapter plate 30. The reinforcement block 31 is arranged around the periphery of the ball head outer bushing 42 and is connected to the outer side wall of the ball head outer bushing 42 to strengthen the ball head outer bushing 42 so that it can better bear the bending moment.
[0044] Further, if Figure 7 As shown, the ball head inner bushing 41 is also formed with a connecting plate 412 for connecting with the wheel, as shown in FIG. Figure 5As shown, the fully floating half-shaft assembly further includes an ABS signal gear ring 62 , which is sleeved on the half-shaft 50 and clamped between the end surface of the ball head outer bushing 42 and the connecting plate 412 .
[0045] A sealing ring 63 is also provided on the half shaft 50 (see Figure 2 ), a sealing ring 63 is arranged between the half shaft 50 and the ball head inner sleeve 41 to further improve the sealing performance of the ball head.
[0046] Figure 10 The figure shows the shaft side structure diagram of the full floating half-axle assembly provided by the second embodiment of the present utility model. Figure 11 Shown Figure 10 Schematic diagram of the front view of the full-floating half-shaft assembly. Figure 12 Shown Figure 11 Schematic diagram of the cross-sectional structure in the XII-XII direction. Figures 10 to 12 As shown, the second embodiment of the present invention is substantially the same as the first embodiment, except that, in this embodiment, the bearing is a cylindrical bearing 45, which can be integral and no longer requires a separate arrangement. The fully floating half-shaft assembly also includes a blocking ring 441 and an ABS signal gear ring 62. The ABS signal gear ring 62 is located at the end of the cylindrical bearing 45 facing the bridge tube 10, and the blocking ring 441 is located at the end of the cylindrical bearing away from the bridge tube 10. The ABS signal gear ring 62 is fixed to the ball head inner bushing 41, such as by threaded engagement. The ABS signal gear ring 62 and the blocking ring 441 respectively block the cylindrical bearing from both sides.
[0047] In the present invention, an adapter plate 30 and a ball head 40 are provided on the fully-floating half-shaft assembly, and the ball head outer bushing 42 is integrally formed on the adapter plate 30. When performing modification from a semi-floating half-shaft assembly to a fully-floating half-shaft assembly, the ball head outer bushing 40 in the related structure of the semi-floating half-shaft assembly can be first fixed to the adapter plate 30, and then the adapter plate 30 can be assembled on the base plate 20 of the bridge tube 10, and then the ball head inner bushing 41, the bearing and the ball head outer bushing 42 are assembled together to form an integral ball head 40, and finally the half-shaft 50 is passed through the ball head 40 and the adapter plate 30, and extended into the bridge tube 10, and connected to the deceleration mechanism in the bridge tube 10 to complete the assembly. Because the base plate 20 is the original structure of the semi-floating axle assembly, the installation of the adapter plate 30 and ball head 40 allows the semi-floating axle assembly to be directly converted into a fully floating axle assembly, eliminating the need for structural modifications to the axle tube 10. During use, torque on the axle 50 is transmitted to the ball head inner bushing 41, which is connected to the wheel. Therefore, when a bending moment is applied to the ball head inner bushing 41, the moment is transmitted through the ball head inner bushing 41, the bearing, and the ball head outer bushing 42 to the adapter plate 30, and ultimately to the axle tube 10 through the base plate 20. This bending moment does not act on the axle 50, thus preventing the axle 50 from bending.
[0048] That is, in the present invention, the adapter plate 30 is fixed to the base plate 20 of the bridge tube 10 through the provision of the adapter plate 30. The ball head 40 connects the adapter plate 30 to the wheel. Specifically, the ball head outer bushing 42 is integrally connected to the adapter plate 30. In combination with the ball head inner bushing 41 and bearing connected to the ball head outer bushing 42, a fully floating connection of the axle shaft 50 is achieved. This fully floating axle shaft assembly can be fixed to the base plate 20 of the bridge tube 10 in existing semi-floating axle shaft assemblies using existing technology, and is relatively easy to assemble and maintain. It can be modified by replacing components in the structure of the semi-floating axle shaft 50, and has a good market prospect.
[0049] The present invention also provides a vehicle, including the above-mentioned full-floating half-axle assembly. For other technical features of the vehicle, please refer to the prior art and will not be described in detail here.
[0050] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A fully floating half-shaft assembly, characterized by: It includes an adapter plate, a ball head and a half-axle. The adapter plate is used to be fixed on the base plate of the bridge tube. The ball head is used to be arranged between the adapter plate and the wheel to connect the adapter plate and the wheel. The half-axle can pass through the ball head and be fully floatingly connected to the ball head.
2. The fully floating half-shaft assembly according to claim 1, characterized in that: The ball head includes an inner ball head sleeve, an outer ball head sleeve and a bearing. The outer ball head sleeve is integrally formed on the adapter plate. The inner ball head sleeve extends into the outer ball head sleeve from the side of the outer ball head sleeve away from the bridge tube. The bearing is arranged between the inner ball head sleeve and the outer ball head sleeve. The inner ball head sleeve is used to be connected to the wheel. One end of the half shaft passes through the ball head and the adapter plate and extends into the bridge tube. The other end of the half shaft is dynamically connected to the inner ball head sleeve, and the inner ball head sleeve is driven to rotate relative to the outer ball head sleeve through the half shaft.
3. The fully floating half-shaft assembly according to claim 2, characterized in that: The bearing is a tapered bearing, which includes a first bearing. The first bearing includes a bearing inner sleeve and a bearing rolling kit. The bearing inner sleeve is fixedly connected to the ball head inner sleeve, and the bearing rolling kit is arranged between the bearing inner sleeve and the ball head outer sleeve.
4. The fully floating half-shaft assembly according to claim 3, characterized in that: A step surface is formed on the bearing inner sleeve so that the bearing inner sleeve has a sealing section and a bearing section. The sealing section is closer to the bridge tube direction than the bearing section, and the outer diameter of the sealing section is larger than the outer diameter of the bearing section. When the first bearing is installed in the ball head, the bearing rolling kit is arranged between the bearing section and the ball head outer sleeve, and the sealing section seals the inside of the ball head from the side where the first bearing is located.
5. The fully floating half-shaft assembly according to claim 3 is characterized in that: The tapered bearing also includes a second bearing, which is arranged between the inner sleeve of the ball head and the outer sleeve of the ball head. The first bearing and the second bearing are arranged in sequence along the axial direction of the half shaft. The first bearing is closer to the bridge tube than the second bearing. A sealing ring is provided on the end face of the second bearing away from the first bearing to seal the ball head from the side of the second bearing away from the first bearing.
6. The fully floating half-shaft assembly according to claim 2, characterized in that: A connecting plate for connecting to a wheel is also formed on the ball head inner bushing. The fully floating half-axle assembly also includes an ABS signal gear ring, which is sleeved on the half-axle and clamped between the end face of the ball head outer bushing and the connecting plate.
7. The fully floating half-shaft assembly according to claim 2, characterized in that: The bearing is a cylindrical bearing, and the fully floating half-axle assembly includes a sealing ring and an ABS signal gear ring. The ABS signal gear ring is located at the end of the cylindrical bearing facing the bridge tube, and the sealing ring is located at the end of the cylindrical bearing away from the bridge tube. The ABS signal gear ring is fixed on the ball head inner sleeve, and the ABS signal gear ring and the sealing ring seal the cylindrical bearing from both sides respectively.
8. The fully floating half-shaft assembly according to claim 2, characterized in that: A plurality of first gear teeth are formed on the side wall of the inner ring of the ball head liner, each of the first gear teeth extends along the axial direction of the ball head inner sleeve, and the plurality of first gear teeth are arranged in sequence along the circumference of the ball head inner sleeve. Second gear teeth are formed at positions corresponding to the half shaft and the ball head inner sleeve, and the first gear teeth are combined with the second gear teeth to transmit the torque of the half shaft to the ball head inner sleeve.
9. The fully floating half-shaft assembly according to claim 2, characterized in that: The fully floating half-shaft assembly further includes a plug, which is disposed in the ball head inner bushing and located on a side of the half-shaft away from the bridge tube to seal the half-shaft.
10. A vehicle, characterized in that: A full-floating half-shaft assembly comprising any one of claims 1 to 9.