Front-drive steering drive axle housing assembly, front-drive steering drive axle and vehicle

Abstract

The utility model relates to vehicle steering technical field, specifically disclose a kind of front drive steering drive axle housing assembly, front drive steering drive axle and vehicle, the front drive steering drive axle housing assembly includes axle housing body and two knuckle forks, axle housing body is along the both ends of its own extension direction and is provided with first flange, two knuckle forks are provided with second flange, and the second flange of two knuckle forks is connected with two first flange one-to-one, the size of first flange along horizontal direction is less than its own along vertical direction size, the size of second flange along horizontal direction is less than its own along vertical direction size.This front drive steering drive axle housing adopts split type structure, it is favorable to reduce under spring mass, avoid the influence of half axle sleeve pipe and other structures to corner;The size of first flange and second flange after connection in horizontal direction is smaller, can effectively reduce the influence to corner range, and then make the front drive steering drive axle housing assembly have greater corner range.

Description

Technical Field

[0001] This utility model relates to the field of vehicle steering technology, and in particular to a front-wheel drive steering drive axle housing assembly, a front-wheel drive steering drive axle, and a vehicle. Background Technology

[0002] The front-wheel drive steering axle is one of the main components of a vehicle. It typically consists of an axle housing, a final drive, a differential, half-shafts with constant velocity joints, and steering knuckle forks. The front-wheel drive steering axle transmits power from the engine to the front wheels, ensuring the vehicle is driven normally. It supports the front load of the vehicle; and the traction, braking, lateral, and vertical forces acting on the front wheels are transmitted to the suspension, frame, or chassis via the axle housing. Therefore, the axle housing is both a load-bearing and force-transmitting component. The steering function of the front-wheel drive steering axle is achieved through the axle housing and the steering knuckles mounted at both ends. The indicator of the steering function of the front-wheel drive steering axle is the steering angle. A larger steering angle results in a smaller turning radius, improving the vehicle's agility in tight spaces, enhancing its hazard avoidance capabilities, ensuring driving safety, and improving the driver's experience. There is still room for improvement in the steering angle of current front-wheel drive steering axles.

[0003] Therefore, a front-wheel drive steering drive axle housing assembly, a front-wheel drive steering drive axle, and a vehicle are needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a front-wheel drive steering drive axle housing assembly, a front-wheel drive steering drive axle, and a vehicle, so as to solve the related problems of the steering angle of the front-wheel drive steering drive axle in the prior art.

[0005] On one hand, this utility model provides a front-wheel drive steering axle housing assembly, which includes:

[0006] The bridge housing body has a first flange at both ends along its own extension direction;

[0007] Two steering knuckle forks, each of which is provided with a second flange, and the second flanges of the two steering knuckle forks are connected to the two first flanges in a one-to-one correspondence;

[0008] The first flange has a horizontal dimension smaller than its vertical dimension, and the second flange has a horizontal dimension smaller than its vertical dimension.

[0009] As an optional technical solution, the outer contours of both the first flange and the second flange are approximately elliptical.

[0010] As an optional technical solution, the outer contour of the first flange is exactly the same as that of the second flange.

[0011] As an optional technical solution, the two ends of the axle housing body are respectively provided with insertion slots, and the steering knuckle fork is provided with insertion parts. The insertion parts of the two steering knuckle forks are interference-fitted with the two insertion slots of the axle housing body one-to-one.

[0012] As an optional technical solution, the front-wheel drive steering axle housing assembly further includes a locating pin, the first flange is provided with a first pin hole, the second flange is provided with a second pin hole, the first pin hole and the second pin hole are provided correspondingly, one end of the locating pin is accommodated in the first pin hole, and the other end of the locating pin is accommodated in the second pin hole.

[0013] As an optional technical solution, the front-wheel drive steering axle housing assembly also includes fasteners. Two sets of fasteners are provided between a first flange and a second flange. One set of fasteners passes through the first flange and is fastened to the second flange, while the other set of fasteners passes through the second flange and is fastened to the first flange.

[0014] As an optional technical solution, the bridge housing body includes a bridge package and a connecting arm. The bridge package is located between the two first flanges and is connected to the first flanges through the connecting arm. Along the extension direction of the bridge package toward the first flange, at least the outer peripheral surface of the connecting arm is provided with reinforcing ribs.

[0015] As an optional technical solution, the reinforcing rib is connected to the bridge package; or, the two ends of the reinforcing rib are respectively connected to the bridge package and the first flange.

[0016] As an optional technical solution, the outer peripheral surface of the connecting arm is also provided with a transition surface.

[0017] As an optional technical solution, the forming processes of both the axle housing body and the steering knuckle fork include casting.

[0018] On the other hand, the present invention provides a front-wheel drive steering drive axle, which includes a differential and a front-wheel drive steering drive axle housing assembly as described in any of the above-mentioned solutions, wherein the differential is mounted in the mounting cavity of the axle housing body.

[0019] On the other hand, the present invention provides a vehicle that includes a front-wheel drive steering drive axle as described in any of the above-mentioned solutions.

[0020] The beneficial effects of this utility model are:

[0021] This utility model discloses a front-wheel drive steering drive axle housing assembly, which includes a housing body and two steering knuckle forks. The housing body has a first flange at each end along its extension direction, and each steering knuckle fork has a second flange. The second flanges of the two steering knuckle forks are connected to the two first flanges in a one-to-one correspondence. The horizontal dimension of the first flange is smaller than its vertical dimension, and the horizontal dimension of the second flange is smaller than its vertical dimension. This front-wheel drive steering drive axle housing assembly features a detachable connection between the housing body and the two steering knuckle forks. Compared to the existing integral cast front-wheel drive steering drive axle housing, it eliminates the heavy integral housing and axle sleeve, reducing unsprung mass and improving vehicle safety during driving. Furthermore, it avoids the influence of structures such as axle sleeves on the steering angle, thereby increasing the vehicle's steering range and improving driving safety. Furthermore, the first flange's horizontal dimension is smaller than its vertical dimension, and the second flange's horizontal dimension is smaller than its vertical dimension. After the first and second flanges are connected, their horizontal dimensions are relatively small. Under the premise of ensuring good connection stability of the first and second flanges, the influence of the first and second flanges on the steering angle range can be effectively reduced, thereby enabling the front-wheel drive steering axle housing assembly to have a larger steering angle range, improving performance and safety.

[0022] This utility model also provides a front-wheel drive steering axle, including a differential and the aforementioned front-wheel drive steering axle housing assembly, with the differential mounted in a mounting cavity within the housing body. This front-wheel drive steering axle, by incorporating the aforementioned front-wheel drive steering axle housing assembly, can achieve a larger steering angle range, thereby improving the steering performance of the front-wheel drive steering axle.

[0023] This utility model also discloses a vehicle that includes the aforementioned front-wheel drive steering drive axle, thereby meeting the need for a smaller turning angle range of the vehicle, thereby improving the vehicle's safety and performance, and enhancing the driver's driving experience. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the first structure of the front-wheel drive steering axle housing assembly in this embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the second structure of the front-wheel drive steering axle housing assembly in an embodiment of this utility model;

[0026] Figure 3 This is a side view of the front-wheel drive steering axle housing assembly in an embodiment of the present invention;

[0027] Figure 4This is a schematic diagram of the first structure of the steering knuckle fork in an embodiment of this utility model.

[0028] In the picture:

[0029] 10. Bridge housing body; 11. First flange; 12. Insertion groove; 13. Bridge housing; 131. Oil reservoir; 14. Connecting arm;

[0030] 20. Steering knuckle fork; 21. Second flange; 22. Connecting part;

[0031] 30. Positioning pin;

[0032] 40. Fasteners;

[0033] 50. Reinforcing ribs;

[0034] 60. Transition surface. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0039] like Figures 1 to 4 As shown, this embodiment provides a front-wheel drive steering drive axle housing assembly, which includes a housing body 10 and two steering knuckle forks 20. The housing body 10 has a first flange 11 at both ends along its extension direction, and the two steering knuckle forks 20 have a second flange 21. The second flange 21 of the two steering knuckle forks 20 are connected to the two first flanges 11 in a one-to-one correspondence. The dimension of the first flange 11 in the horizontal direction is smaller than its dimension in the vertical direction, and the dimension of the second flange 21 in the horizontal direction is smaller than its dimension in the vertical direction.

[0040] In this embodiment, the axle housing body 10 and the two steering knuckle forks 20 of this front-wheel drive steering axle housing are detachably connected. Compared with the integral cast front-wheel drive steering axle housing in the prior art, on the one hand, the heavy integral axle housing and half-shaft sleeve are eliminated, which helps to reduce unsprung mass and improve vehicle safety during driving. Moreover, it avoids the influence of structures such as half-shaft sleeves on the steering angle, thereby increasing the vehicle's steering angle range and improving driving safety. On the other hand, the steering knuckle fork 20 has a small part size and good casting and machining processability, which can ensure the assembly accuracy of the steering system. Furthermore, the first flange 11 has a smaller horizontal dimension than its vertical dimension, and the second flange 21 has a smaller horizontal dimension than its vertical dimension. After the first flange 11 and the second flange 21 are connected, the horizontal dimension is small. Under the premise of ensuring good connection stability of the first flange 11 and the second flange 21, the influence of the first flange 11 and the second flange 21 on the steering angle range can be effectively reduced. This allows the front-wheel drive steering axle housing assembly to have a larger steering angle range, improving performance and safety.

[0041] Preferably, in this embodiment, the axle housing body 10 is made of ductile iron, and the steering knuckle fork 20 is made of cast steel. This results in the steering knuckle fork 20 having higher hardness than the axle housing body 10, thereby ensuring a longer service life and reducing costs, which in turn helps ensure safety during use. The specific grades of the materials used for the axle housing body 10 and the steering knuckle fork 20 are not specifically limited here; they can be selected according to the actual application scenario and will not be elaborated upon further.

[0042] Specifically, the forming processes of both the axle housing body 10 and the steering knuckle fork 20 include casting forming processes. Casting forming processes are existing technologies and will not be described in detail here.

[0043] Furthermore, such as Figure 3 As shown, the outer contours of the first flange 11 and the second flange 21 are both approximately elliptical. Specifically, in this embodiment, the elliptical shape of the first flange 11 avoids affecting the casting of the axle housing body 10, thus ensuring the casting quality of the axle housing body 10. Similarly, the elliptical shape of the second flange 21 also avoids affecting the casting of the steering knuckle fork 20, thus ensuring the casting quality of the steering knuckle fork 20. This, in turn, ensures that the front-drive steering drive axle housing assembly has good quality and ensures safety during use.

[0044] Alternatively, in another embodiment, the outer contours of the first flange 11 and the second flange 21 can also be other shapes with horizontal dimensions smaller than vertical dimensions, such as teardrop shape or spindle shape, etc., without specific limitations.

[0045] Furthermore, such as Figures 1 to 3 As shown, the outer contours of the first flange 11 and the second flange 21 are completely identical. Specifically, in this embodiment, the outer contours of the first flange 11 and the second flange 21 are completely identical, thereby maximizing the stability of the connection between the first flange 11 and the second flange 21, ensuring the connection stability between the steering knuckle fork 20 and the axle housing body 10, reducing the risk of collisions between the first flange 11 and the second flange 21 due to their different outer contours, and extending the service life of the first flange 11 and the second flange 21.

[0046] Furthermore, such as Figure 1 and Figure 4As shown, the axle housing body 10 has insertion slots 12 at both ends, and the steering knuckle fork 20 has insertion portions 22. The insertion portions 22 of the two steering knuckle forks 20 are interference-fitted with the two insertion slots 12 of the axle housing body 10 in a one-to-one correspondence. Specifically, in this embodiment, the insertion portion 22 is the shaft tube of the steering knuckle fork 20. The interference fit between the shaft tube of the steering knuckle fork 20 and the insertion slots 12 at both ends of the axle housing body 10 can improve the connection strength between the steering knuckle fork 20 and the axle housing body 10, thereby improving the overall rigidity of the front-drive steering drive axle housing assembly and ensuring that the front-drive steering drive axle housing assembly has good performance.

[0047] Furthermore, such as Figure 1 As shown, the front-wheel drive steering axle housing assembly also includes a locating pin 30. The first flange 11 has a first pin hole, and the second flange 21 has a second pin hole. The first and second pin holes are correspondingly arranged. One end of the locating pin 30 is inserted into the first pin hole, and the other end of the locating pin 30 is inserted into the second pin hole. Specifically, in this embodiment, a first pin hole is provided on the first flange 11, and a second pin hole is provided on the second flange 21. When connecting the first flange 11 and the second flange 21, one end of the locating pin 30 is first inserted into the first pin hole, and then the second pin hole is aligned with the other end of the locating pin 30. This limits the positioning of the first flange 11 and the second flange 21, thereby improving the installation accuracy and efficiency of the first flange 11 and the second flange 21.

[0048] Alternatively, in another embodiment, when connecting the first flange 11 and the second flange 21, one end of the positioning pin 30 is first inserted into the second pin hole, and then the first pin hole is aligned with the other end of the positioning pin 30. This can limit the first flange 11 and the second flange 21, thereby improving the installation accuracy and efficiency of the first flange 11 and the second flange 21. This will not be elaborated in detail here.

[0049] Optionally, the number of locating pins 30 is set to be multiple. Correspondingly, the first flange 11 is provided with multiple first pin holes, and the second flange 21 is provided with multiple second pin holes. One end of the multiple locating pins 30 is inserted into the multiple first pin holes in a one-to-one correspondence, and the other end of the multiple locating pins 30 is inserted into the multiple second pin holes in a one-to-one correspondence. The details are not elaborated here.

[0050] Optionally, the cross-sectional shape of the locating pin 30 can be circular or other irregular shapes, as long as the shape of the cross-section of the first pin hole and the cross-section of the second pin hole are consistent with the cross-sectional shape of the locating pin 30. No specific restrictions are imposed here.

[0051] It is understandable that when the cross-sectional shape of the locating pin 30 is circular, the cross-sectional shapes of the first pin hole and the second pin hole are also circular. Here, the number of locating pins 30, the first pin hole and the second pin hole must be greater than or equal to 2 to ensure a good limiting effect between the first flange 11 and the second flange 21.

[0052] It is understandable that when the cross-sectional shape of the locating pin 30 is irregular, the cross-sectional shapes of the first pin hole and the second pin hole are also irregular shapes corresponding to the cross-sectional shape of the locating pin 30. The number of locating pins 30, the first pin hole and the second pin hole can be specifically set according to actual use to ensure a good limiting effect between the first flange 11 and the second flange 21.

[0053] Furthermore, such as Figures 1 to 3 As shown, the front-wheel drive steering axle housing assembly also includes fasteners 40. Two sets of fasteners 40 are provided between a first flange 11 and a second flange 21. One set of fasteners 40 passes through the first flange 11 and is fastened to the second flange 21, while the other set of fasteners 40 passes through the second flange 21 and is fastened to the first flange 11. Specifically, in this embodiment, the fasteners 40 are bolts. Two sets of bolts are provided between the first flange 11 and the second flange 21. One set of bolts passes through the first flange 11 and is fastened to the second flange 21, while the other set of bolts passes through the second flange 21 and is fastened to the first flange 11. This arrangement ensures that the tightening directions of the two sets of bolts are opposite, thereby improving the reliability of the threaded connection and the connection reliability of the first flange 11 and the second flange 21, which helps to extend the service life of the front-wheel drive steering axle housing assembly.

[0054] Specifically, in this embodiment, each group of bolts includes 6 bolts, of which 3 bolts and the other 3 bolts are arranged symmetrically about the vertical direction, which will not be described in detail here.

[0055] Furthermore, such as Figure 1 and Figure 2 As shown, the bridge housing body 10 includes a bridge housing 13 and a connecting arm 14. The bridge housing 13 is located between two first flanges 11, and the bridge housing 13 is connected to the first flanges 11 via the connecting arm 14. At least the outer peripheral surface of the connecting arm 14 is provided with reinforcing ribs 50 along the extension direction of the bridge housing 13 towards the first flanges 11. Specifically, in this embodiment, providing reinforcing ribs 50 on the outer peripheral surface of the connecting arm 14 on one side of the bridge housing 13 can improve the structural strength of the bridge housing body 10, thereby helping to extend the service life of the bridge housing body 10.

[0056] Furthermore, such as Figure 1 and Figure 2As shown, the reinforcing rib 50 is connected to the bridge housing 13; or, the two ends of the reinforcing rib 50 are connected to the bridge housing 13 and the first flange 11, respectively. Specifically, in this embodiment, the reinforcing rib 50 is connected to the bridge housing 13, thereby improving the structural strength, load-bearing capacity and stiffness of the bridge housing body 10.

[0057] Alternatively, in another embodiment, the two ends of the reinforcing rib 50 are connected to the bridge housing 13 and the first flange 11 respectively, which can enhance the integrity of the bridge housing body 10 and thus improve the structural strength, load-bearing capacity and stiffness of the bridge housing body 10.

[0058] Furthermore, such as Figure 1 As shown, a transition surface 60 is also provided on the outer peripheral surface of the connecting arm 14. Specifically, in this embodiment, the addition of the transition surface 60 on the lower side of the connecting arms 14 on both sides of the bridge housing 13 can also improve the stiffness of the connecting arm 14, thereby improving the structural strength, load-bearing capacity and stiffness of the bridge housing body 10.

[0059] This embodiment also provides a front-wheel drive steering axle, including a differential and the aforementioned front-wheel drive steering axle housing assembly, with the differential mounted in the mounting cavity of the housing body 10. This front-wheel drive steering axle, by incorporating the aforementioned front-wheel drive steering axle housing assembly, can achieve a larger steering angle range, thereby improving the steering performance of the front-wheel drive steering axle.

[0060] Specifically, in this embodiment, the mounting cavity of the bridge housing body 10 is opened in the bridge package 13, which will not be described in detail here.

[0061] Optionally, in this embodiment, the rear cover of the axle housing body 10 is provided with two oil reservoirs 131. One oil reservoir 131 can guide the lubricating oil splashed from the driven bevel gear into the differential lubrication channel, improve the internal wear of the differential, and extend the service life of the transmission system; the other oil reservoir 131 lubricates the through shaft bearing, extending the service life of the bearing.

[0062] This embodiment also provides a vehicle that includes the aforementioned front-wheel drive steering axle, thereby meeting the need for a smaller turning angle range, improving vehicle safety and performance, and enhancing the driver's driving experience.

[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A front-wheel drive steering axle housing assembly, characterized in that, include: Bridge shell body (10), wherein a first flange (11) is provided at both ends along its own extension direction; Two steering knuckle forks (20), each of the two steering knuckle forks (20) is provided with a second flange (21), and the second flange (21) of the two steering knuckle forks (20) is connected to the two first flanges (11) in a one-to-one correspondence; The first flange (11) has a horizontal dimension smaller than its vertical dimension, and the second flange (21) has a horizontal dimension smaller than its vertical dimension.

2. The front-wheel drive steering axle housing assembly according to claim 1, characterized in that, The outer contours of the first flange (11) and the second flange (21) are both elliptical.

3. The front-wheel drive steering axle housing assembly according to claim 2, characterized in that, The outer contour of the first flange (11) is exactly the same as that of the second flange (21).

4. The front-wheel drive steering axle housing assembly according to claim 1, characterized in that, The axle housing body (10) is provided with insertion slots (12) at both ends, and the steering knuckle fork (20) is provided with insertion part (22). The insertion parts (22) of the two steering knuckle forks (20) are interference-fitted with the two insertion slots (12) of the axle housing body (10) one by one.

5. The front-wheel drive steering axle housing assembly according to claim 4, characterized in that, The front-wheel drive steering axle housing assembly also includes a locating pin (30), the first flange (11) is provided with a first pin hole, the second flange (21) is provided with a second pin hole, the first pin hole and the second pin hole are provided correspondingly, one end of the locating pin (30) is inserted into the first pin hole, and the other end of the locating pin (30) is inserted into the second pin hole.

6. The front-wheel drive steering axle housing assembly according to claim 1, characterized in that, The front-wheel drive steering axle housing assembly also includes fasteners (40). Two sets of fasteners (40) are provided between a first flange (11) and a second flange (21). One set of fasteners (40) passes through the first flange (11) and is fastened to the second flange (21). The other set of fasteners (40) passes through the second flange (21) and is fastened to the first flange (11).

7. The front-wheel drive steering axle housing assembly according to claim 1, characterized in that, The bridge housing body (10) includes a bridge package (13) and a connecting arm (14). The bridge package (13) is located between the two first flanges (11), and the bridge package (13) is connected to the first flanges (11) through the connecting arm (14). Along the extension direction of the bridge package (13) toward the first flanges (11), at least the outer peripheral surface of the connecting arm (14) is provided with reinforcing ribs (50).

8. The front-wheel drive steering axle housing assembly according to claim 7, characterized in that, The reinforcing rib (50) is connected to the bridge package (13); or, the two ends of the reinforcing rib (50) are respectively connected to the bridge package (13) and the first flange (11).

9. The front-wheel drive steering axle housing assembly according to claim 7, characterized in that, The outer peripheral surface of the connecting arm (14) is also provided with a transition surface (60).

10. The front-wheel drive steering axle housing assembly according to any one of claims 1-9, characterized in that, The forming processes of both the axle housing body (10) and the steering knuckle fork (20) include casting.

11. A front-wheel drive steering axle, characterized in that, Includes a differential and a front-drive steering drive axle housing assembly as described in any one of claims 1-10, wherein the differential is mounted in the mounting cavity of the axle housing body (10).

12. A vehicle, characterized in that, Includes the front-drive steering drive axle as described in claim 11.

Images