CN106394122A - Steering front shaft with strengthened fist part - Google Patents
Steering front shaft with strengthened fist part Download PDFInfo
- Publication number
- CN106394122A CN106394122A CN201610790205.3A CN201610790205A CN106394122A CN 106394122 A CN106394122 A CN 106394122A CN 201610790205 A CN201610790205 A CN 201610790205A CN 106394122 A CN106394122 A CN 106394122A
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- Prior art keywords
- flange
- front shaft
- steering front
- longitudinal
- fist
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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
- B60B35/02—Dead axles, i.e. not transmitting torque
- B60B35/06—Dead axles, i.e. not transmitting torque cranked
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
A steering front shaft with a strengthened fist part comprises a front shaft body, the steering front shaft fist part and a main pin hole. The outer end of the front shaft body is connected with the outer side of the steering front shaft fist part through an arc transition part. The cross section of the steering front shaft fist part is of a closed annular structure. The distance between a radial outer flange and the main pin shaft hole of the steering front shaft fist part, the distance between a longitudinal front flange and the main pin shaft hole of the steering front shaft fist part, the distance between a radial inner flange and the main pin shaft hole of the steering front shaft fist part and the distance between a longitudinal rear flange and the main pin shaft hole of the steering front shaft fist part are a, b, c and d correspondingly. The radius of the main pin hole is r, and b+2r+d is larger than 2r+2a. According to the design, the wall thickness of the steering front shaft fist part can be increased, the mechanical strength of the steering front shaft fist part can be improved, the space utilization rate can be increased, and the increased weight is small.
Description
Technical field
The present invention relates to a kind of steering front shaft facility, the steering front shaft that more particularly, to a kind of fist portion strengthens, specifically it is suitable for
In the mechanical strength improving steering front shaft fist portion.
Background technology
At present, in heavy-load automobile field particularly engineering truck field, steering front shaft fist portion passes through stub phase with knuckle
Connection, knuckle, with wheel left-right rotation, limits the appearance and size in steering front shaft fist portion, so, existing steering front shaft fist
The cross section in portion is generally circular in cross section, leads to that the wall thickness in steering front shaft fist portion is less, and intensity is relatively low, when carload is big or road conditions
When complicated, steering front shaft needs to carry very big load, and now, with road condition change, front axle load can occur very great fluctuation process, front
The load that axle fist portion bears so that the not enough problem of intensity in front axle fist portion, ultimately results in and turns easily higher than design setting
To front axle fist portion cracking.
Chinese patent, Authorization Notice No. is CN202368265U, and authorized announcement date is in August, 2012 utility model of 8 days
Patent discloses a kind of automobile front axle, and is symmetrically formed at this front axle main body two ends in I-shaped front axle main body including section
Front axle fist shape portion, is respectively provided with arc transition portion between described front axle main body and each front axle fist shape portion, preferably described front axle
Main body includes the body top of one, lower body part and is located at main body linking part between this body top and lower body part,
The opposite flank of this main body linking part is respectively formed as arcwall face, and this main body linking part and described body top and lower body part
Bond sites be respectively formed with arc transiting surface.Although this is designed in the premise not significantly increasing automobile front axle weight
Under, effectively improve the bearing capacity of automobile front axle, but in this design, the cross section in steering front shaft fist portion is circle, still deposits
In the less defect of wall thickness, mechanical strength is relatively low, easily causes the accident of steering front shaft fist dehiscence in the head in use.
Content of the invention
The purpose of the present invention is to overcome the defect that wall thickness present in prior art is less, mechanical strength is relatively low and problem,
The steering front shaft that the fist portion that a kind of wall thickness is larger, mechanical strength is higher strengthens is provided.
For realizing object above, the technical solution of the present invention is：The steering front shaft that a kind of fist portion strengthens, including before
Axle main body, steering front shaft fist portion and kingpin bore, arc transition portion and steering front shaft fist are passed through in the outer end of described front axle main body
The outside in portion is connected, and described steering front shaft fist portion is the cylinder type of hollow, and the middle part in steering front shaft fist portion
Offer the kingpin bore of insertion；
The cross section in described steering front shaft fist portion is enclosed loop configuration, and this loop configuration includes being all the radial direction of camber
Outward flange, longitudinal front flange, radially inner flange, longitudinal rear flange, the upper lateral part of described radially outer flange and longitudinal front flange
Left side is connected, and the right side of longitudinal front flange is connected with the upper lateral part of radially inner flange, the following side of radially inner flange
It is connected with the right side of longitudinal rear flange, the left side of longitudinal rear flange is connected with the following side of radially outer flange；
Maximum radial spacing between described radially outer flange and the left side wall of kingpin bore is a, radially inner flange and kingpin bore
Maximum radial spacing between right side wall is c, and the maximum longitudinal pitch between longitudinal front flange and the upper side wall of kingpin bore is b,
Maximum longitudinal pitch between longitudinal rear flange and the lower wall of kingpin bore is d, and the radius of kingpin bore is r, and b+2r+d is more than
2r+2a.
The scope that described b+2r+d is more than 2r+2a is 5 millimeters to 15 millimeters.
The scope that described b+2r+d is more than 2r+2a is 10 millimeters.
The numerical value of described b, d is equal, and the numerical value of a, c is equal, and b is more than a.
The numerical value of described a, c is equal, and b is more than d, and d is more than a.
Described longitudinal front flange, the junction of radially outer flange are provided with the upper left arc carrier of an indent, longitudinally
Front flange, radially inner flange junction be provided with the upper right arc carrier of an indent.
The radian of described upper right arc carrier is more than the radian of upper left arc carrier.
Described longitudinal rear flange, the junction of radially outer flange are provided with the lower-left arc carrier of an evagination, longitudinally
Rear flange, radially inner flange junction be provided with the bottom right arc carrier of an evagination.
The radian of described lower-left arc carrier is less than bottom right arc carrier.
Compared with prior art, beneficial effects of the present invention are：
1st, in the steering front shaft that a kind of fist of present invention portion strengthens, the cross section in steering front shaft fist portion is enclosed ring junction
Structure, between radially outer flange in this loop configuration, longitudinal front flange, radially inner flange, longitudinal rear flange and kingpin bore between
Away from for a, b, c, d, wherein, b+2r+d is the longitudinal length of dangerouse cross-section in steering front shaft fist portion, when b+2r+d is more than 2r+2a
When, the longitudinal length of dangerouse cross-section is extended, and thickness is increased, and the section factor of dangerouse cross-section gets a promotion, steering front shaft
The mechanical strength in fist portion increases therewith, thus being prevented effectively from the accident occurring to ftracture in use.Therefore, turn in the present invention
The wall thickness in front axle fist portion is larger, and mechanical strength is higher.
2nd, in the steering front shaft that a kind of fist of present invention portion strengthens, emphasize that b+2r+d is more than 2r+2a, prolongation be turn to before
Axle fist portion is in longitudinal length, this is because wheel steering angle is big laterally, little to inner side, so fist portion longitudinal space ratio
More rich, especially other front spaces are more, therefore in the length longitudinally extending fist portion, can not only strengthen the machine in fist portion
Tool intensity, and the utilization rate of fist portion peripheral space can be improved, especially when b is more than d, and d is more than a, better.Cause
This, the present invention can not only strengthen the mechanical strength in steering front shaft fist portion, and can improve space availability ratio.
3rd, in the steering front shaft that a kind of fist of present invention portion strengthens, the scope that b+2r+d is more than 2r+2a is 5 millimeters to 15 millis
Rice, this design can not only strengthen the mechanical strength in steering front shaft fist portion, and defines the scope that longitudinal length extends, and makes
With its occur in steering front shaft fist portion increase quality for whole front axle assembly very little.Therefore, this
The weight very little of bright increase, cost performance is higher.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is structural representation during b=d in the present invention.
Fig. 3 is b in the present invention>Structural representation during d.
In figure：Front axle main body 1, arc transition portion 11, steering front shaft fist portion 2, kingpin bore 3, radially outer flange 4, longitudinal direction
Front flange 5, upper left arc carrier 51, upper right arc carrier 52, radially inner flange 6, longitudinal rear flange 7, lower-left arc hold
Socket part 71, bottom right arc carrier 72；
Maximum radial spacing between the left side wall of radially outer flange 4 and kingpin bore 3 is a, longitudinal front flange 5 and kingpin bore 3
Maximum longitudinal pitch between upper side wall is b, and the maximum radial spacing between the right side wall of radially inner flange 6 and kingpin bore 3 is
C, the maximum longitudinal pitch between longitudinal rear flange 7 and the lower wall of kingpin bore 3 is d, and the radius of kingpin bore 3 is r.Retouching herein
The orientation of the upper and lower, left and right used in stating, the orientation diagram all being marked in Fig. 1 is defined.
Specific embodiment
Below in conjunction with brief description and specific embodiment, the present invention is further detailed explanation.
Referring to Fig. 1 to Fig. 3, the steering front shaft that a kind of fist portion strengthens, include front axle main body 1, steering front shaft fist portion 2 and
Kingpin bore 3, the outer end of described front axle main body 1 is connected with the outside in steering front shaft fist portion 2 by arc transition portion 11, described
Steering front shaft fist portion 2 is the cylinder type of hollow, and offers the kingpin bore of insertion at the middle part in steering front shaft fist portion 2
3；
The cross section in described steering front shaft fist portion 2 is enclosed loop configuration, and this loop configuration includes being all the footpath of camber
Outward flange 4, longitudinal front flange 5, radially inner flange 6, longitudinal rear flange 7, before the upper lateral part of described radially outer flange 4 and longitudinal direction
The left side of flange 5 is connected, and the right side of longitudinal front flange 5 is connected with the upper lateral part of radially inner flange 6, radially inner flange
6 following side is connected with the right side of longitudinal rear flange 7, the left side of longitudinal rear flange 7 and the following side of radially outer flange 4
It is connected；
Maximum radial spacing between described radially outer flange 4 and the left side wall of kingpin bore 3 is a, radially inner flange 6 and kingpin bore
Maximum radial spacing between 3 right side wall is c, the maximum longitudinal pitch between longitudinal front flange 5 and the upper side wall of kingpin bore 3
For b, the maximum longitudinal pitch between longitudinal rear flange 7 and the lower wall of kingpin bore 3 is d, and the radius of kingpin bore 3 is r, and b+2r
+ d is more than 2r+2a.
The scope that described b+2r+d is more than 2r+2a is 5 millimeters to 15 millimeters.
The scope that described b+2r+d is more than 2r+2a is 10 millimeters.
The numerical value of described b, d is equal, and the numerical value of a, c is equal, and b is more than a.
The numerical value of described a, c is equal, and b is more than d, and d is more than a.
Described longitudinal front flange 5, the junction of radially outer flange 4 are provided with the upper left arc carrier 51 of an indent,
Longitudinal front flange 5, radially inner flange 6 junction be provided with the upper right arc carrier 52 of an indent.
The radian of described upper right arc carrier 52 is more than the radian of upper left arc carrier 51.
Described longitudinal rear flange 7, the junction of radially outer flange 4 are provided with the lower-left arc carrier 71 of an evagination,
Longitudinal rear flange 7, radially inner flange 6 junction be provided with the bottom right arc carrier 72 of an evagination.
The radian of described lower-left arc carrier 71 is less than bottom right arc carrier 72.
The principle of the present invention is described as follows：
In prior art, the cross section due to steering front shaft fist portion is circular design, is affected by arrangement space, overall wall ratio
Less, mechanical strength is relatively low, easy to crack in use.The present invention has abandoned circular design of the prior art, with steering front shaft with
Space between knuckle, extends its longitudinal length（I.e. b+2r+d is more than 2r+2a）, thickened the danger in steering front shaft fist portion
Section, increased the section factor of dangerouse cross-section, improves its mechanical strength, it is to avoid rupture in use.Meanwhile, longitudinally long
Degree prolongation, using be steering front shaft fist portion periphery excess room（Wheel steering angle is big laterally, institute little to inner side
More with the space that fist portion is longitudinal, the space of especially front side is more）, both the assembling of remaining parts will not be produced and hinder,
The utilization rate of existing space can also be improved.
Embodiment 1：
The steering front shaft strengthened referring to Fig. 1 to Fig. 3, a kind of fist portion, including front axle main body 1, steering front shaft fist portion 2 and stub
Hole 3, the outer end of described front axle main body 1 is connected with the outside in steering front shaft fist portion 2 by arc transition portion 11, described steering
Front axle fist portion 2 is the cylinder type of hollow, and offers the kingpin bore 3 of insertion at the middle part in steering front shaft fist portion 2；
The cross section in described steering front shaft fist portion 2 is enclosed loop configuration, and this loop configuration includes being all the footpath of camber
Outward flange 4, longitudinal front flange 5, radially inner flange 6, longitudinal rear flange 7, before the upper lateral part of described radially outer flange 4 and longitudinal direction
The left side of flange 5 is connected, and the right side of longitudinal front flange 5 is connected with the upper lateral part of radially inner flange 6, radially inner flange
6 following side is connected with the right side of longitudinal rear flange 7, the left side of longitudinal rear flange 7 and the following side of radially outer flange 4
It is connected；
Maximum radial spacing between described radially outer flange 4 and the left side wall of kingpin bore 3 is a, radially inner flange 6 and kingpin bore
Maximum radial spacing between 3 right side wall is c, the maximum longitudinal pitch between longitudinal front flange 5 and the upper side wall of kingpin bore 3
For b, the maximum longitudinal pitch between longitudinal rear flange 7 and the lower wall of kingpin bore 3 is d, and the radius of kingpin bore 3 is r, and b+2r
+ d is more than 2r+2a.
Embodiment 2：
With embodiment 1, difference is substance：
The scope that described b+2r+d is more than 2r+2a is 5 millimeters to 15 millimeters, and the scope that preferably b+2r+d is more than 2r+2a is 10 millis
Rice.
Embodiment 3：
With embodiment 1, difference is substance：
The numerical value of described b, d is equal, and the numerical value of a, c is equal, and b is more than a.Now the cross section in steering front shaft fist portion 2 is approximate
For ellipse.
Embodiment 4：
With embodiment 1, difference is substance：
The numerical value of described a, c is equal, and b is more than d, and d is more than a.Now the cross section in steering front shaft fist portion 2 is approximately with ellipse
Based on a kind of deformation, be longitudinally dissymmetrical structure, this is designed to better profit from the front side in steering front shaft fist portion 2
Excess room, this asymmetric design can lift 20% about compared to circular design, security system.
Embodiment 5：
With embodiment 3, difference is substance：
Described longitudinal front flange 5, the junction of radially outer flange 4 are provided with the upper left arc carrier 51 of an indent, longitudinally
Front flange 5, radially inner flange 6 junction be provided with the upper right arc carrier 52 of an indent.Described upper right arc holds
The radian of socket part 52 is more than the radian of upper left arc carrier 51.This be designed to longitudinal front flange 5 and radially outer flange 4,
Between radially inner flange 6, row buffering is entered in the load of junction, it is to avoid infringement.
Embodiment 6：
With embodiment 4, difference is substance：
Described longitudinal rear flange 7, the junction of radially outer flange 4 are provided with the lower-left arc carrier 71 of an evagination, longitudinally
Rear flange 7, radially inner flange 6 junction be provided with the bottom right arc carrier 72 of an evagination.Described lower-left arc holds
The radian of socket part 71 is less than bottom right arc carrier 72.This is designed to inside with radially outer flange 4, footpath to longitudinal rear flange 7
Between flange 6, row buffering is entered in the load of junction, it is to avoid infringement.
Claims (9)
1. the steering front shaft that a kind of fist portion strengthens, including front axle main body（1）, steering front shaft fist portion（2）With kingpin bore（3）,
Described front axle main body（1）Outer end pass through arc transition portion（11）With steering front shaft fist portion（2）Outside be connected, described turn
To front axle fist portion（2）For the cylinder type of hollow, and in steering front shaft fist portion（2）Middle part offer the stub of insertion
Hole（3）It is characterised in that：
Described steering front shaft fist portion（2）Cross section be enclosed loop configuration, this loop configuration includes being all camber
Radially outer flange（4）, longitudinal front flange（5）, radially inner flange（6）, longitudinal rear flange（7）, described radially outer flange（4）Upper
Sidepiece and longitudinal front flange（5）Left side be connected, longitudinal front flange（5）Right side and radially inner flange（6）Upside
Portion is connected, radially inner flange（6）Following side and longitudinal rear flange（7）Right side be connected, longitudinal rear flange（7）A left side
Sidepiece and radially outer flange（4）Following side be connected；
Described radially outer flange（4）With kingpin bore（3）Left side wall between maximum radial spacing be a, radially inner flange（6）With
Kingpin bore（3）Right side wall between maximum radial spacing be c, longitudinal front flange（5）With kingpin bore（3）Upper side wall between
Maximum longitudinal pitch is b, longitudinal rear flange（7）With kingpin bore（3）Lower wall between maximum longitudinal pitch be d, kingpin bore
（3）Radius be r, and b+2r+d be more than 2r+2a.
2. a kind of fist portion according to claim 1 strengthens steering front shaft it is characterised in that：Described b+2r+d is more than 2r
The scope of+2a is 5 millimeters to 15 millimeters.
3. a kind of fist portion according to claim 2 strengthens steering front shaft it is characterised in that：Described b+2r+d is more than 2r
The scope of+2a is 10 millimeters.
4. a kind of fist portion according to claim 1,2 or 3 strengthens steering front shaft it is characterised in that：The number of described b, d
Value is equal, and the numerical value of a, c is equal, and b is more than a.
5. a kind of fist portion according to claim 1,2 or 3 strengthens steering front shaft it is characterised in that：The number of described a, c
Value is equal, and b is more than d, and d is more than a.
6. a kind of fist portion according to claim 4 strengthens steering front shaft it is characterised in that：Described longitudinal front flange
（5）, radially outer flange（4）Junction be provided with the upper left arc carrier of an indent（51）, longitudinal front flange（5）, footpath
Inward flange（6）Junction be provided with the upper right arc carrier of an indent（52）.
7. a kind of fist portion according to claim 6 strengthens steering front shaft it is characterised in that：Described upper right arc is accepted
Portion（52）Radian be more than upper left arc carrier（51）Radian.
8. a kind of fist portion according to claim 5 strengthens steering front shaft it is characterised in that：Described longitudinal rear flange
（7）, radially outer flange（4）Junction be provided with the lower-left arc carrier of an evagination（71）, longitudinal rear flange（7）, footpath
Inward flange（6）Junction be provided with the bottom right arc carrier of an evagination（72）.
9. a kind of fist portion according to claim 8 strengthens steering front shaft it is characterised in that：Described lower-left arc is accepted
Portion（71）Radian be less than bottom right arc carrier（72）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790205.3A CN106394122B (en) | 2016-08-31 | 2016-08-31 | A kind of steering front shaft that fist portion reinforces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790205.3A CN106394122B (en) | 2016-08-31 | 2016-08-31 | A kind of steering front shaft that fist portion reinforces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106394122A true CN106394122A (en) | 2017-02-15 |
| CN106394122B CN106394122B (en) | 2018-12-07 |
Family
ID=58000700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610790205.3A Active CN106394122B (en) | 2016-08-31 | 2016-08-31 | A kind of steering front shaft that fist portion reinforces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106394122B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3804467A (en) * | 1971-07-01 | 1974-04-16 | Lear Siegler Inc | Front axle |
| DE102007025684A1 (en) * | 2007-06-01 | 2008-04-30 | Daimler Ag | Steerable axle i.e. steerable front axle, for motor vehicle, has steering spindle standing in effective connection with steering gear that is fastened at axle body, and passage opening of axle body running in axle transverse direction |
| CN103260900A (en) * | 2010-12-14 | 2013-08-21 | 亨德里克森美国有限责任公司 | Head plate for vehicle axle |
| WO2015137606A1 (en) * | 2014-03-11 | 2015-09-17 | (주)화신 | Hollow axle having reinforced rigidity for vehicle |
| CN206124625U (en) * | 2016-08-31 | 2017-04-26 | 东风商用车有限公司 | Fist portion strengthens turns to front axle |
-
2016
- 2016-08-31 CN CN201610790205.3A patent/CN106394122B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3804467A (en) * | 1971-07-01 | 1974-04-16 | Lear Siegler Inc | Front axle |
| DE102007025684A1 (en) * | 2007-06-01 | 2008-04-30 | Daimler Ag | Steerable axle i.e. steerable front axle, for motor vehicle, has steering spindle standing in effective connection with steering gear that is fastened at axle body, and passage opening of axle body running in axle transverse direction |
| CN103260900A (en) * | 2010-12-14 | 2013-08-21 | 亨德里克森美国有限责任公司 | Head plate for vehicle axle |
| WO2015137606A1 (en) * | 2014-03-11 | 2015-09-17 | (주)화신 | Hollow axle having reinforced rigidity for vehicle |
| CN206124625U (en) * | 2016-08-31 | 2017-04-26 | 东风商用车有限公司 | Fist portion strengthens turns to front axle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106394122B (en) | 2018-12-07 |
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