CN102730050A - Method for connecting yoke and shaft - Google Patents
Method for connecting yoke and shaft Download PDFInfo
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- CN102730050A CN102730050A CN201110085119XA CN201110085119A CN102730050A CN 102730050 A CN102730050 A CN 102730050A CN 201110085119X A CN201110085119X A CN 201110085119XA CN 201110085119 A CN201110085119 A CN 201110085119A CN 102730050 A CN102730050 A CN 102730050A
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- yoke
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Abstract
The invention provides a method for connecting a yoke and a shaft. The yoke with a through type kidney-shaped inner hole and a transmission shaft with a transmission end manufactured to be a flat and square transmission end are provided; the flat and square transmission end of the transmission shaft, which is connected with the yoke, and the through type kidney-shaped inner hole of the yoke are assembled in mutual gap fit or interference fit so as to be integrally connected; and a fixed welding point or riveting point is arranged at the connection part of the transmission end and the kidney-shaped inner hole after the both are assembled. According to the method for connecting the yoke and the shaft, provided by the invention, the structure is simple; a more complex yoke machining process in the prior art is changed; compared with the former design, the method for connecting the yoke and the shaft, disclosed by the invention, has the advantages that the mechanical machining cost is reduced by 10-15%, the cost of a whole steering column is remarkably reduced, and the torque can be effectively transmitted, difficulty of sliding and a better transmission effect can be realized, the effect of safe transmission can be met, and the security of the whole vehicle is improved; and the method for connecting the yoke and the shaft, disclosed by the invention, is suitable for the field of steering columns of various automobiles.
Description
Technical field
The present invention relates to a kind of connection mode that makes the device of vehicle change of direction, promptly a kind of steering controlling device field relates in particular to the method for attachment of joint fork that a kind of auto steerer uses and axle.
Background technology
As everyone knows, one of key parts of automobile-steering column, this steering column device has been related to the behaviour in service of car load, and whether the quality of steering column directly has influence on the automobile single-piece and turns to steadily, even has influence on the safety of vehicle complete vehicle.
And the fork of the joint in steering column device assembly; Be one of core component of motor turning driving system, joint fork assembly is directly to influence normal vehicle operation and whether turn to the key part of safety, so to the design and the manufacturing of this joint fork assembly high requirement is arranged all; As depicted in figs. 1 and 2; Joint under the prior art is pitched assembly at present, and it has generally adopted a kind of connection mode that fork matches with transmission shaft that saves, and wherein the joint fork is for offering the spline joint fork of interior circular hole; Offer corresponding male splines again pitching on the bonded assembly driving end on the transmission shaft with joint; This transmission shaft is inserted the interior circular hole that joint is pitched, and the spline of circular hole closely cooperates in its male splines and the joint fork, drives to save through rotating drive shaft and pitches running; And there are following two problems in this type of design under the prior art through the feedback on long manufacturing the and the statistics of later period maintenance:
1. the design of existing joint fork is as depicted in figs. 1 and 2; Because the endoporus of this joint fork is interior circular hole spline; And should in circular hole spline must with the motion thread perfect fitting of the driving end of transmission shaft, so its manufacture process requirement is higher, cause the also corresponding raising of manufacturing cost and manufacturing time; Make that the cost of this joint fork assembly is high always, be difficult to tackle the market demand of develop rapidly.
2. from the statistics of follow-up maintenance; Automobile steering system is through turn to running for a long time; The screw thread of the driving end of transmission shaft receives load impacting to cause wearing and tearing bigger with the spline place of closely cooperating of the interior circular hole of joint fork, like the maintaining of NO Fixed Time, gently then causes steering power not transmit fully; Heavy then to cause automobile steering system to skid suddenly malfunctioning, have an accident when serious.
A kind of autocar spindle fork vertical type forging technique method of application number 200810246365.7; The spindle fork forms an integral body by the fork ear of symmetry on bar portion, flange, the flange; It is characterized in that particular content is: from spindle fork flange, take into account both sides fork ear and carry out vertical minute mould, the Joint face of a pattern of vertical minute mould is vertical with bar portion; Fork ear home record to the spindle fork carries out feed supplement, forms draft angle; On forging machine, carry out vertical formed by forging then; Said fork ear home record bottom is formed by forging directly.Owing to changed the branch modular form, feed supplement has been carried out at the part processing position, optimized preforming, realize vertical forging; Joint face of a pattern is long-pending to be reduced, and overlap reduces, and improves stock utilization more than 20%, reduces the secondary base link in horizontal the forging, and improves and forges efficient, reduces production costs.Said fork ear home record bottom is formed by forging directly, has eliminated internal arm bottom stock left for machining.
This patent improves from the manufacturing process of joint fork, has improved stock utilization and has reduced productive costs, but still solved the problem that is connected existence between joint fork and the transmission shaft.
Shaft universal-joint under a kind of motor turning of application number 200720192779.7.It comprises castellated shaft; This castellated shaft is with splined tube outward, and this splined tube one termination has joint fork A, and castellated shaft one end connects joint fork B; Between this joint fork B and castellated shaft coupling end, be provided with spacer assembly; The spacer assembly outer end is provided with baffle plate, it is characterized in that described spacer assembly comprises outer wire loop and interior wire loop, is provided with elastic layer between this outer wire loop and the interior wire loop.Through the setting of this elastic layer, when moment of torsion direction of passage dish was passed to universal-joint, smaller when steering torque, baffle plate moved between the joint fork pockets through spacer assembly, at this moment flexible the transmission, and traveling comfort is relatively good, and can play cushioning effect; When steering torque was bigger, when baffle plate moved to joint fork pockets wall, thereby can prevent turn to transition lag behind, can better play turning efficiency through rigid of transmission this moment.
The logical spacer assembly of setting up of this patent improves transmission shaft is connected generation with the joint fork problem, but still changes joint fork overall structure, still is interior circular hole spline connection, exists structural different with the present invention.
A kind of motor turning tween drive spindle of application number 201020210084.9; Said transmission shaft comprises first joint yoke, primary shaft, second joint yoke, second, intermediate jacket and plain bearing; Said first joint yoke is connected with primary shaft through center cross; Second joint yoke is connected with second through center cross, connects through spline between primary shaft and second, and said intermediate jacket passes through plain bearing and is connected with primary shaft.The intermediate jacket of motor turning tween drive spindle of the present invention is connected with primary shaft through plain bearing, thereby reduced the noise that rubs and produced between two parts, and reduced the wearing and tearing of intermediate jacket, improved the NVH performance of automobile greatly.
This patent has been made improvement to transmission shaft, has increased intermediate jacket, but does not still change joint fork overall structure, still is that interior circular hole spline connects, and exists structural different with the present invention.
In sum, need pitch assembly by a kind of later-model joint at present, not only can solve joint fork and transmission shaft manufacturing complicacy under the prior art, the cost problem of higher needs in cost-cutting, also can guarantee safety.
Summary of the invention
In order to address the above problem; The invention provides a kind of method of attachment that saves fork and axle; Its design concept has changed the design of circular hole in the joint fork under the prior art connects, and has guaranteed safety for the joint fork assembly manufacturing cost that solves under the prior art is high; Make it to become a kind of parts of low-cost steering column, concrete structure of the present invention is described below:
A kind of method of attachment that saves fork and axle comprises joint fork and transmission shaft, it is characterized in that:
Described joint fork, it has through waist type endoporus;
Described transmission shaft, it is the flat-square-shaped driving end with joint fork bonded assembly driving end.
Be designed to key Design point of the present invention here; Changed the spline joint fork that joint fork under the prior art has adopted interior circular hole, on the transmission shaft with joint fork bonded assembly driving end on offer corresponding spline again motion thread make its type of drive that cooperates between the two, and adopted the through waist type endoporus and the driving end of flat-square-shaped; This fit system; The joint fork assembly of this type, processing technology requires to reduce greatly, has promptly reduced cost.
Based on a kind of method of attachment that saves fork and axle of the present invention, it is characterized in that, be mutual matched in clearance between the driving end of the flat-square-shaped that is connected with the joint fork of described power transmission shaft and the through waist type endoporus that joint is pitched.
The design-calculated purpose is here; The driving end of the deltiod of transmission shaft is mutual free-running fit with the through waist type endoporus of joint fork; This kind fit system; Make that torque drive can be more smooth and easy tight, the wearing and tearing that the difficult spline place of closely cooperating that produces under the prior art is caused by load impacting are bigger, the problem that causes steering power not transmit fully.
According to a kind of method of attachment that saves fork and axle of the present invention, it is characterized in that the junction of described driving end and waist type endoporus is provided with fixedly weld nugget of 4～6 places, is the welded type connection mode.
Design goal is here; Increased weld nugget in the junction; On the basis that does not change connection mode, strengthened the connection effect, made the moment of torsion transmission more reliable, whole joint fork assembly is more durable; Improve the safety of car load indirectly, also can be coated with the full circular welding in addition in the contact position of driving end and waist type endoporus again.
Based on a kind of method of attachment that saves fork and axle of the present invention, it is characterized in that, be mutual interference fit between the driving end of the flat-square-shaped that is connected with the joint fork of described power transmission shaft and the through waist type endoporus that joint is pitched.
According to a kind of method of attachment that saves fork and axle of the present invention, it is characterized in that the junction of described driving end and waist type endoporus is provided with fixedly riveting point, 4～6 places, is the riveted type connection mode.
This design-calculated purpose is; This connection mode is the other a kind of connection mode of method of attachment of joint fork of the present invention and axle; Driving end and waist type endoporus interference fit, and distributed riveting point is fixed around adopting, and this connection mode is compared with the interference connection mode; Lower to processing request, be applicable to that low-cost steering column connects.
Use a kind of method of attachment that saves fork and axle of the present invention, obtained following beneficial effect:
1. a kind of method of attachment that saves fork and axle of the present invention, the joint fork design of the flat cellular type of its waist type has changed existing structure, and this structure can reduce manufacturing procedure, reduces working accuracy relatively, can enhance productivity greatly like this.
2. of the present invention a kind of save the fork with the axle method of attachment, adopt new structure and processing technology after, its machinework cost is compared with original design and has been reduced by 10%～15%, has tangible cost-cutting effect.
3. a kind of method of attachment that saves fork and axle of the present invention, because the driving end of transmission shaft is a flat-square-shaped, the flat cellular type of waist type that cooperates joint to pitch; Transfer torque effectively after both connect; Reach the effect of transfer torque of the joint fork assembly of the interior circular hole spline under the prior art equally, and the transmission better effects if, be difficult for skidding; Can satisfy the effect of safe transmission, improve the safety of car load.
Description of drawings
Fig. 1 is the concrete structure scheme drawing of the joint fork assembly under the prior art;
Fig. 2 is that the A of joint fork of the joint fork assembly under the prior art is to view;
Fig. 3 is a kind of concrete structure scheme drawing that saves the method for attachment of fork and axle of the present invention;
Fig. 4 for a kind of B that saves fork and the joint fork of the method for attachment of axle of the present invention to scheme drawing;
Fig. 5 for of the present invention a kind of save fork with spool being connected of method of attachment after the concrete structure scheme drawing;
Fig. 6 for of the present invention a kind of save fork with spool being connected of method of attachment after C to scheme drawing;
Fig. 7 is a kind of employing riveted type bonded assembly concrete structure scheme drawing that saves the method for attachment of fork and axle of the present invention;
Fig. 8 for a kind of employing riveted type bonded assembly D of method of attachment that saves fork and axle of the present invention to scheme drawing.
Among the figure: 1-saves fork, the 2-transmission shaft, and 3-waist type endoporus, the 4-driving end, 5-is weld nugget fixedly, and 6-is the riveting point fixedly.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment a kind of method of attachment that saves fork and axle of the present invention is further described.
Embodiment
To shown in Figure 6, the joint fork that has through waist type endoporus 3 is processed joint fork 1 in a kind of method of attachment that saves fork and axle of the present invention like Fig. 3; Then the driving end 4 of a transmission shaft 2 is processed the flat-square-shaped driving end, be assembled into mutual interference fit between the through waist type endoporus with driving end transmission shaft and joint fork bonded assembly flat-square-shaped and joint fork during assembling, make its whole connection; It should be noted that; Connection mode adopts the full week welding of cover type after also can be free-running fit here, equally also can reach the connection effect, has improved torque-transfer capability; In the junction of driving end and waist type endoporus fixedly weld nugget 5 is set after the assembled; Adopt 4 weld nuggets in the present embodiment, on the basis that does not change connection mode, strengthened the connection effect, further strengthened making the moment of torsion transmission more reliable; Whole joint fork assembly is more durable, the safety that has improved car load indirectly.
Extremely shown in Figure 8 like Fig. 7; A kind of method of attachment that saves fork and axle of the present invention, all the other steps such as embodiment 1, but fixedly riveting point 6 is set in the junction of its driving end 4 and waist type endoporus 3; 4 riveting points have been adopted in the present embodiment; Riveted joint connects with being welded to connect to be compared, lower to processing request, is applicable to that low-cost steering column connects.
A kind of method of attachment that saves fork and axle of the present invention, simple in structure, changed joint fork processing technology comparatively complicated under the prior art; Its machinework cost is compared with original design and has been reduced by 10%～15%, has the effect of the whole steering column cost of tangible reduction, and transfer torque effectively; Be difficult for skidding, the transmission better effects if can satisfy the effect of safe transmission; Improved the safety of car load, be applicable to that various automobiles use the steering column field.
Claims (5)
1. method of attachment that saves fork and axle comprises joint fork (1) and transmission shaft (2), it is characterized in that:
Described joint fork (1), it has through waist type endoporus (3);
Described transmission shaft (2), it is the flat-square-shaped driving end with joint fork bonded assembly driving end (4).
2. a kind of method of attachment that saves fork and axle as claimed in claim 1 is characterized in that, is mutual free-running fit between the through waist type endoporus (3) that driving end (4) described transmission shaft (2) and that save fork (1) bonded assembly flat-square-shaped and joint are pitched.
3. a kind of method of attachment that saves fork and axle as claimed in claim 2 is characterized in that described driving end (4) is provided with fixedly weld nugget (5) of 4～6 places with the junction of waist type endoporus (3), is the welded type connection mode.
4. a kind of method of attachment that saves fork and axle as claimed in claim 1 is characterized in that, is mutual interference fit between the through waist type endoporus (3) that driving end (4) described transmission shaft (2) and that save fork (1) bonded assembly flat-square-shaped and joint are pitched.
5. a kind of method of attachment that saves fork and axle as claimed in claim 4 is characterized in that described driving end (4) is provided with 4～6 places fixedly riveting point (6) with the junction of waist type endoporus (3), is the riveted type connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110085119XA CN102730050A (en) | 2011-04-06 | 2011-04-06 | Method for connecting yoke and shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110085119XA CN102730050A (en) | 2011-04-06 | 2011-04-06 | Method for connecting yoke and shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102730050A true CN102730050A (en) | 2012-10-17 |
Family
ID=46986532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110085119XA Pending CN102730050A (en) | 2011-04-06 | 2011-04-06 | Method for connecting yoke and shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102730050A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115339503A (en) * | 2022-09-01 | 2022-11-15 | 浙江汇丰汽车零部件股份有限公司 | Steering mechanism, steering signal output mechanism and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010007625A1 (en) * | 2000-01-07 | 2001-07-12 | Moon Han Kwan | Yoke unit |
| EP1867884A1 (en) * | 2006-06-16 | 2007-12-19 | Nissan Motor Manufacturing (UK) Ltd. | Improvements relating to vehicle steering |
| US20090060637A1 (en) * | 2007-08-31 | 2009-03-05 | Jtekt Corporation | Assembly error prevention member and universal joint having same member |
| JP2010084897A (en) * | 2008-10-01 | 2010-04-15 | Jtekt Corp | Joint, and joining method of joint and shaft |
| CN201547151U (en) * | 2009-12-04 | 2010-08-11 | 麻城纳福传动机械有限公司 | Universal coupler |
| CN201902470U (en) * | 2011-01-12 | 2011-07-20 | 上海采埃孚转向系统有限公司 | Yoke assembly for automobile steering column |
-
2011
- 2011-04-06 CN CN201110085119XA patent/CN102730050A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010007625A1 (en) * | 2000-01-07 | 2001-07-12 | Moon Han Kwan | Yoke unit |
| EP1867884A1 (en) * | 2006-06-16 | 2007-12-19 | Nissan Motor Manufacturing (UK) Ltd. | Improvements relating to vehicle steering |
| US20090060637A1 (en) * | 2007-08-31 | 2009-03-05 | Jtekt Corporation | Assembly error prevention member and universal joint having same member |
| JP2010084897A (en) * | 2008-10-01 | 2010-04-15 | Jtekt Corp | Joint, and joining method of joint and shaft |
| CN201547151U (en) * | 2009-12-04 | 2010-08-11 | 麻城纳福传动机械有限公司 | Universal coupler |
| CN201902470U (en) * | 2011-01-12 | 2011-07-20 | 上海采埃孚转向系统有限公司 | Yoke assembly for automobile steering column |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115339503A (en) * | 2022-09-01 | 2022-11-15 | 浙江汇丰汽车零部件股份有限公司 | Steering mechanism, steering signal output mechanism and vehicle |
| CN115339503B (en) * | 2022-09-01 | 2023-06-27 | 浙江汇丰汽车零部件股份有限公司 | Steering mechanism, steering signal output mechanism and vehicle |
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Application publication date: 20121017 |