CN211684519U - Vehicle front axle, steering axle assembly and vehicle - Google Patents
Vehicle front axle, steering axle assembly and vehicle Download PDFInfo
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- CN211684519U CN211684519U CN201922287104.6U CN201922287104U CN211684519U CN 211684519 U CN211684519 U CN 211684519U CN 201922287104 U CN201922287104 U CN 201922287104U CN 211684519 U CN211684519 U CN 211684519U
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- leaf spring
- fist
- circular arc
- front axle
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Abstract
The utility model relates to a vehicle front axle, steering axle assembly and vehicle, vehicle front axle include middle part (1), leaf spring installation department (2), transition portion (3) and fist portion (4) that the centre outwards set gradually, wherein fist portion is used for connecting knuckle (6), transition portion for leaf spring installation department squints forward, so that two of vehicle front axle the center line of fist portion squints forward in two the center line of leaf spring installation department. The center connecting lines of the two fist parts are shifted forward compared with the center connecting lines of the two plate spring mounting parts, so that the space on the rear side of the connecting position of the transition part and the plate spring mounting parts can be increased. Like this, can provide bigger space for the pull rod arm, the corner of wheel end when having improved the pull rod arm and having moved extreme position, the rotation of bigger angle can be done to the wheel end promptly for the vehicle turns to the operation of process more nimble, promotes whole driving experience.
Description
Technical Field
The disclosure relates to the field of vehicle parts, in particular to a vehicle front axle, a steering axle assembly and a vehicle.
Background
In the driving process of the vehicle, the driving experience during turning is an important part influencing the overall use feeling of the vehicle, and the operation flexibility during driving and turning is improved, so that the competitiveness of the vehicle can be increased. The larger the angle of rotation that the front axle can provide during a turn of the vehicle, the smaller the turning radius required by the vehicle, and the greater the flexibility of the vehicle. In the related art, for some steering axles, when the wheel end is rotated to the extreme position, the tie rod arm interferes with the front axle of the vehicle formed as an i-beam, thereby limiting the maximum rotation angle of the wheel end and limiting the flexibility of the vehicle in the turning process. Therefore, the vehicle competitiveness can be improved by improving the structure of the vehicle steer axle to increase the maximum steering angle of the wheel end.
SUMMERY OF THE UTILITY MODEL
A first object of the present disclosure is to provide a vehicle front axle to increase the maximum turning angle of the wheel ends, improving the flexibility of turning of the vehicle.
A second object of the present disclosure is to provide a steer axle assembly that can improve the flexibility of the vehicle when steering.
A third object of the present disclosure is to provide a vehicle including the steer axle assembly provided by the present disclosure.
In order to realize this disclosed purpose, this disclosure provides a vehicle front axle, include middle part, leaf spring installation department, transition portion and fist portion that outwards sets gradually from the centre, wherein fist portion is used for connecting the knuckle, transition portion for leaf spring installation department offsets forward, so that two of vehicle front axle the center line of fist portion offsets forward in two the center line of leaf spring installation department.
Optionally, the transition portion includes an arc segment connected to the leaf spring mounting portion and a straight segment connected to the fist portion, the arc segment includes a first arc extending from a front side of the leaf spring mounting portion to the straight segment in a curved manner, and a second arc extending from a rear side of the leaf spring mounting portion to the straight segment in a curved manner, and a curvature of the second arc is greater than a curvature of the first arc.
Optionally, the centre line of the straight section is coplanar with the line joining the centres of the two punches.
Optionally, the offset distance between the central connecting line of the two fist parts and the central connecting line of the two plate spring mounting parts is a, the width of the plate spring mounting part is b, and the ratio of a to b is 1:4-1: 12.
Optionally, the vehicle front axle is configured as an i-beam and includes a top beam, a bottom beam, and a vertical beam connecting the top beam and the bottom beam.
According to the second aspect of the present disclosure, a steer axle assembly is provided, including vehicle front axle, king pin and knuckle, the vehicle front axle includes middle part, leaf spring installation department, transition portion and fist that outwards set gradually from the centre, fist passes through the king pin is connected to on the knuckle, the transition portion for leaf spring installation department squints forward, so that two of vehicle front axle the center line of fist squints the center line in two leaf spring installation departments forward.
Optionally, the transition portion includes an arc segment connected to the leaf spring mounting portion and a straight segment connected to the fist portion, the arc segment includes a first arc extending from a front side of the leaf spring mounting portion to the straight segment in a curved manner, and a second arc extending from a rear side of the leaf spring mounting portion to the straight segment in a curved manner, and a curvature of the second arc is greater than a curvature of the first arc.
Optionally, the centre line of the straight section is coplanar with the line joining the centres of the two punches.
Optionally, the offset distance between the central connecting line of the two fist parts and the central connecting line of the two plate spring mounting parts is a, the width of the plate spring mounting part is b, and the ratio of a to b is 1:4-1: 12.
According to a third aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned steer axle assembly.
Through above-mentioned technical scheme, the central line of two fist portions compares the central line skew forward in two leaf spring installation departments, can make the space increase of the rear side of handing-over position of transition portion and leaf spring installation department. Like this, can provide bigger space for the pull rod arm, the corner of wheel end when having improved the pull rod arm and having moved extreme position, the rotation of bigger angle can be done to the wheel end promptly for the vehicle turns to the operation of process more nimble, promotes whole driving experience.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic illustration of a steering axle assembly of the related art;
FIG. 2 is a schematic view of a front axle of a vehicle in the related art;
FIG. 3 is a schematic illustration of a vehicle front axle according to one embodiment of the present disclosure;
fig. 4 is a partially enlarged view of a portion Y in fig. 3.
Description of the reference numerals
1 middle 11 top beam
12 bottom beam and 13 vertical beam
2 leaf spring mounting part 3 transition part
31 arc segment 311 first arc segment
312 second arc segment 313 third arc segment
314 fourth arc segment 32 straight segment
4 fist 5 draw bar arm
6 knuckle
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise stated, directional words such as "front and rear" are used as defined in front and rear of the vehicle body, and may be specifically directed with reference to the arrows in fig. 3. The "inner and outer" are relative to the self-profile of the corresponding component. The terms "first," "second," and the like as used in this disclosure are used to distinguish one element from another, and do not denote any order or importance. The following description refers to the accompanying drawings in which like references indicate the same or similar elements in different figures.
In the related art, referring to fig. 1 and 2, a front axle of a vehicle includes a middle portion 1, a leaf spring mounting portion 2, a transition portion 3, and a fist portion 4, which are sequentially provided outward from the middle. Since the leaf spring mounting portion 2 is generally designed to have a large width for mounting the leaf spring, the transition portion 3 is formed in a shape gradually decreasing in width from the center toward the outside, and a line connecting centers of the two fist portions 4 is collinear with a line connecting centers of the two leaf spring mounting portions 2, where the width refers to a dimension in the vehicle front-rear direction, i.e., the up-down direction of the drawing in fig. 2. The steering axle of the vehicle comprises a front axle of the vehicle, a main pin and steering knuckles 6, wherein the fist part 4 is connected to the steering knuckles 6 through the main pin, and a pull rod arm 5 is rotatably connected between the steering knuckles 6 at two sides and is positioned at the rear part of the front axle of the vehicle. Since the width of the plate spring mounting portion 2 is large, the connecting position of the transition portion 3 and the plate spring mounting portion 2 is wide, and when the vehicle turns in a large range, the wheel end rotation angle reaches a certain angle, at this time, the lever arm 5 easily interferes with the connecting position of the transition portion 3 and the plate spring mounting portion 2, that is, interferes with the X region shown in fig. 1, so that the maximum rotation angle of the wheel end is limited.
To the above-mentioned problem, the present disclosure provides a vehicle front axle, including middle part 1, leaf spring installation department 2, transition portion 3 and fist 4 that outwards set gradually from the middle, fist 4 is used for connecting knuckle 6. Referring to fig. 3, the transition portion 3 is offset forward with respect to the leaf spring mounting portion 2 such that a center connecting line of two fist portions 4 of the vehicle front axle is offset forward from a center connecting line of the two leaf spring mounting portions 2.
Compared with the vehicle front axle in the related art, the center connecting line of the two fist portions 4 is shifted forward compared with the center connecting line of the two leaf spring mounting portions 2, and the space on the rear side of the joint position of the transition portion 3 and the leaf spring mounting portions 2 can be increased. Like this, can provide bigger space for pull rod arm 5, the corner of wheel end when having improved pull rod arm 5 and having moved extreme position, wheel end can do the rotation of bigger angle promptly for the vehicle turns to the operation of process more nimble, promotes whole driving experience.
The present disclosure is not limited to a specific manner of biasing the transition portion 3 forward relative to the leaf spring mounting portion 2. According to an embodiment, referring to fig. 3 and 4, the transition portion 3 in the present embodiment may include a circular arc section 31 connected to the leaf spring mounting portion 2 and a straight section 32 connected to the fist portion 4. The circular arc segment 31 includes a first circular arc 311 extending from the front side of the plate spring mounting portion 2 to the straight segment 32 while being curved, and a second circular arc 312 extending from the rear side of the plate spring mounting portion 2 to the straight segment 32 while being curved. The projecting directions of the first circular arc 311 and the second circular arc 312 are respectively far away from the plate spring mounting part 2, namely the projecting direction of the first circular arc 311 is approximately forward, the projecting direction of the second circular arc section 312 is approximately backward, and the curvature of the second circular arc 312 is larger than that of the first circular arc 311, so that the transition part 3 can be forwardly offset relative to the plate spring mounting part 2, and the maximum rotation angle of the wheel end of the front axle assembly is increased. The method has low improvement requirement on the original machining process and low cost, and particularly, the curvature of the first circular arc 311 can be the same as that of the corresponding position in the related technology, namely, the aim of improving the maximum turning angle of the wheel end can be fulfilled only by improving the curvature of the second circular arc 312.
It should be noted that, since the circular arc segment 31 needs to be gently transited between the straight portion 32 and the plate spring mounting portion 2 to avoid stress concentration, referring to fig. 4, the circular arc segment 31 may further include a third circular arc segment 313 and a fourth circular arc segment 314, wherein the third circular arc segment 313 is connected between the first circular arc segment 311 and the straight portion 32 on the front side, the third circular arc segment 313 is opposite to the bending direction of the first circular arc segment 311, the fourth circular arc segment 314 is connected between the second circular arc segment 312 and the straight portion 32 on the rear side, and the fourth circular arc segment 314 is opposite to the bending direction of the second circular arc segment 312.
Further, referring to fig. 3, the center line of the straight section 32 of the front axle of the vehicle in the present disclosure may be coplanar with the center connecting line of the two fist portions 4, that is, the overall extending direction of the transition portion 3 is the width direction of the vehicle, and no forward or backward inclination occurs, that is, compared with the related art solution, the straight section 32 of the transition portion 3 and the fist portions 4 of the present disclosure are offset forward as a whole without angle change, and the components of the front axle of the vehicle do not need to be adjusted adaptively, for example, the main pin connected with the fist portions 4 is configured as the existing structure.
The present disclosure does not specifically limit the offset distance of the center connecting lines of the two fist portions 4. According to one embodiment, the center connecting line of the two fist parts 4 is offset from the center connecting line of the two leaf spring mounting parts 2 by an offset distance a, and the width of the leaf spring mounting part 2 is b, wherein the ratio of a to b can be 1:4-1: 12. When the offset distance a is smaller than that b, the space increase range of the rear side of the connecting position of the transition part 3 and the plate spring mounting part 2 is smaller, so that the larger angle increase range of the wheel end capable of rotating is smaller; when the offset distance a is too large compared to b, the overall strength of the front axle of the vehicle is affected, and the difficulty of processing increases. Therefore, the offset distance a and the width b of the leaf spring mounting portion 2 are limited within a certain range, so that the vehicle front axle of a certain vehicle type can be improved to increase the operation flexibility during steering and ensure the integral strength of the vehicle front axle.
In the present disclosure, the front axle of the vehicle may be configured as an i-beam and include a top beam 11, a bottom beam 12, and a vertical beam 13 connecting the top beam 11 and the bottom beam 12. The I-beam structure composed of the top beam 11, the bottom beam 12 and the vertical beam 13 can increase the mechanical strength of the front axle of the vehicle, can reduce the weight to a certain degree, and meets the design requirement of the light vehicle.
The utility model also provides a steering axle assembly, including vehicle front axle, king pin and knuckle 6, the vehicle front axle includes middle part 1, leaf spring installation department 2, transition portion 3 and fist 4 that outwards set gradually from the centre, and fist 4 is connected to on the knuckle 6 through the king pin. The transition portion 3 is offset forward with respect to the leaf spring mounting portion 2 such that a center connecting line of two fist portions 4 of the vehicle front axle is offset forward from a center connecting line of the two leaf spring mounting portions 2. The center connecting lines of the two fist portions 4 are offset forward from the center connecting lines of the two leaf spring attachment portions 2, and the space on the rear side of the connecting position of the transition portion 3 and the leaf spring attachment portions 2 can be increased. Like this, can provide bigger space for pull rod arm 5, the corner of wheel end when having improved pull rod arm 5 and having moved extreme position, wheel end can do the rotation of bigger angle promptly for the vehicle turns to the operation of process more nimble, promotes whole driving experience.
In the steering axle assembly of the present disclosure, the structure of the transition portion 3 and the specific manner in which it is forwardly offset relative to the leaf spring mounting portion 2 can be set as described above, and the steering axle assembly is made to have all the beneficial effects of the vehicle front axle described above, and the explanation thereof will not be repeated here.
The present disclosure also provides a vehicle including the above-mentioned steer axle assembly, and having all the benefits of the steer axle assembly, which will not be described herein.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. The utility model provides a vehicle front axle, includes middle part (1), leaf spring installation department (2), transition portion (3) and fist portion (4) that outwards set gradually from the centre, wherein fist portion (4) are used for connecting knuckle (6), its characterized in that, transition portion (3) for leaf spring installation department (2) squint forward, so that two of vehicle front axle the central connecting line of fist portion (4) squints forward in two the central connecting line of leaf spring installation department (2).
2. The vehicle front axle according to claim 1, characterized in that the transition portion (3) includes a circular arc section (31) connected to the leaf spring mounting portion (2) and a straight section (32) connected to the fist portion (4), the circular arc section (31) includes a first circular arc (311) curvedly extending from a front side of the leaf spring mounting portion (2) to the straight section (32), and a second circular arc (312) curvedly extending from a rear side of the leaf spring mounting portion (2) to the straight section (32), a curvature of the second circular arc (312) being larger than a curvature of the first circular arc (311).
3. Vehicle front axle according to claim 2, characterized in that the centre line of the straight section (32) is coplanar with the line connecting the centres of the two fist portions (4).
4. The vehicle front axle according to claim 1, characterized in that the centre line of the two fist portions (4) is offset by a distance a compared to the centre line of the two leaf spring mounting portions (2), the width of the leaf spring mounting portion (2) is b, wherein the ratio of a to b is 1:4-1: 12.
5. Vehicle front axle according to claim 1, characterized in that it is configured as an i-beam and comprises a top beam (11), a bottom beam (12) and a vertical beam (13) connecting the top beam (11) and the bottom beam (12).
6. The utility model provides a steering axle assembly, includes vehicle front axle, king pin and knuckle (6), the vehicle front axle includes middle part (1), leaf spring installation department (2), transition portion (3) and fist (4) that set gradually outwards from the centre, fist (4) pass through the king pin is connected to on knuckle (6), its characterized in that, transition portion (3) for leaf spring installation department (2) squint forward, so that two of vehicle front axle the central line of fist (4) squints forward in the central line of two leaf spring installation departments (2).
7. The steer axle assembly according to claim 6 wherein said transition portion (3) comprises a circular arc segment (31) connected to said leaf spring mount portion (2) and a straight segment (32) connected to said fist portion (4), said circular arc segment (31) comprising a first circular arc (311) extending from a front side of said leaf spring mount portion (2) curvedly toward said straight segment (32), and a second circular arc (312) extending from a rear side of said leaf spring mount portion (2) curvedly toward said straight segment (32), a curvature of said second circular arc (312) being greater than a curvature of said first circular arc (311).
8. The steer axle assembly according to claim 7 wherein the centerline of said straight section (32) is coplanar with the line joining the centers of said two said fist portions (4).
9. The steer axle assembly according to claim 6 wherein the line of centers of the two fist portions (4) is offset a from the line of centers of the two leaf spring mounting portions (2) by a distance a and the leaf spring mounting portions (2) have a width b, wherein the ratio of a to b is 1:4-1: 12.
10. A vehicle comprising the steer axle assembly of any of claims 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922287104.6U CN211684519U (en) | 2019-12-17 | 2019-12-17 | Vehicle front axle, steering axle assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922287104.6U CN211684519U (en) | 2019-12-17 | 2019-12-17 | Vehicle front axle, steering axle assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211684519U true CN211684519U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922287104.6U Active CN211684519U (en) | 2019-12-17 | 2019-12-17 | Vehicle front axle, steering axle assembly and vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN211684519U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113561706A (en) * | 2021-07-30 | 2021-10-29 | 东风商用车有限公司 | Front axle structure and vehicle |
-
2019
- 2019-12-17 CN CN201922287104.6U patent/CN211684519U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113561706A (en) * | 2021-07-30 | 2021-10-29 | 东风商用车有限公司 | Front axle structure and vehicle |
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