CN102530069A - Structure and method for connecting torsion bar with outer shaft in automobile steering system - Google Patents
Structure and method for connecting torsion bar with outer shaft in automobile steering system Download PDFInfo
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- CN102530069A CN102530069A CN2012100452512A CN201210045251A CN102530069A CN 102530069 A CN102530069 A CN 102530069A CN 2012100452512 A CN2012100452512 A CN 2012100452512A CN 201210045251 A CN201210045251 A CN 201210045251A CN 102530069 A CN102530069 A CN 102530069A
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- torsion bar
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- spline
- connecting bore
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Abstract
The invention provides a structure and a method for connecting a torsion bar with an outer shaft in an automobile steering system, belonging to the technical field of machinery, and solving the problem that an inserted pin between a torsion bar and an outer shaft in the existing automobile steering system is easy to fall off, and the connecting stability of the torsion bar and the outer shaft is poor. In the structure for connecting the torsion bar with an outer shaft in an automobile steering system, one end of the torsion bar is a connecting end, the outer shaft is provided with a connecting hole, the connecting end of the torsion bar is provided with a spline, the connecting hole of the outer shaft is provided with a spline groove matched with the spline, the hardness of the torsion bar is greater than that of the outer shaft, and the spline is matched with the spline groove, so that the torsion bar and the outer shaft are circumferentially fixed. The structure and method disclosed by the invention have the advantages of low processing precision, firm assembling, high connecting stability, and the like.
Description
Technical field
The invention belongs to field of mechanical technique, relate to the connection structure and the method for attachment of torsion bar and outer shaft in a kind of automobile steering system, particularly automobile steering system.
Background technology
Torsion bar is as one of core part of hydrostatic steering system and electric power steering, and the quality of its assembling directly influences the performance of deflector and the safety of automobile, belongs to the operation of emphasis control.
Yet it is fixing that the assembling of deflector torsion bar at present normally adopts the spline interference to press-fit, and the torsion bar that is about to splined is pressed in the unthreaded hole of outer shaft; Spline is pressed into the back gyratory directions and connects reliable; Because of vibratory impulse has loosening possibility, once become flexible the possibility that axially just has, torsion bar is deviate from automobile steering system with malfunctioning in just using; Automobile can not reliably turn to, and will be extremely dangerous.
Its publication number of Chinese patent CN200948815Y provide a kind of " automobile power steering ", and it comprises power cylinder body, control valve body, torsion bar, input shaft, end cap, steering screw, steering nut, pitman shaft, pitman arm, side cover, side cover consistent lubricant envelope etc.The assembling of steering nut and steering screw, steering nut are packed in the power cylinder body, and steering screw one end and control valve body assembling are characterized in that six oil grooves of steering screw endoporus are low cost of manufacture, the numerical control scale-division abnormal shape oil groove that work efficiency is high; Input shaft connects torsion bar, torsion bar termination and steering screw assembling, and clearance seal is adopted in sealing therebetween.Side cover and pitman shaft assembling, sealing therebetween adopt side cover consistent lubricant envelope and O RunddichtringO to add the combination sealing of back-up ring, and side cover is fixed on power cylinder inner bore one side, and safer two O RunddichtringO sealings are adopted in cylindrical sealing therebetween.Torsion bar links through latch and steering screw in the above-mentioned patent, and latch is prone to come off in this method of attachment, and its connective stability is not high.
Existing other deflector torsion bar also all exists similar problem.
Summary of the invention
The objective of the invention is the problems referred to above of existing to prior art, the connection structure of torsion bar and outer shaft in a kind of automobile steering system is provided.
First purpose of the present invention is the problems referred to above that exist to prior art, and the connection structure of torsion bar and outer shaft in a kind of simple in structure, automobile steering system that stability is high is provided.
Another object of the present invention provides a kind of method of attachment of implementing conveniently, connecting torsion bar and outer Axile connection structure in the simple automobile steering system.
First purpose of the present invention can realize through following technical proposal:
The connection structure of torsion bar and outer shaft in a kind of automobile steering system; One end of torsion bar is a coupling end, has connecting bore on the outer shaft, it is characterized in that; Said torque rod joint end has spline; The connection hole of said outer shaft has the spline that is complementary with spline, and the hardness of said torsion bar is greater than the hardness of outer shaft, and said spline cooperates with spline makes torsion bar and outer shaft circumferentially fixing.
In above-mentioned automobile steering system in the connection structure of torsion bar and outer shaft; Said torsion bar middle part is close to the riveted post that the spline place has column; Said connecting bore port has riveting part larger-size and that be complementary with the riveted post, and above-mentioned riveted post cooperates with the riveting part makes torsion bar and outer shaft axial restraint.
Spline cooperates with spline to make between torsion bar and the outer shaft circumferentially to be fixed, and it is torsion bar and outer shaft axial restraint that the riveted post cooperates with the riveting part.Make like this between torsion bar and the outer shaft can be reliable and stable transfer torque.
In the connection structure of torsion bar and outer shaft, said splined end has the importing portion that is tapering in above-mentioned automobile steering system.
Press-fit in the process, make spline can insert the connecting bore of outer shaft smoothly through importing portion.
In above-mentioned automobile steering system in the connection structure of torsion bar and outer shaft, described importing portion is the chamfering of splined end.
The present invention also provides the method for attachment of above-mentioned connection structure, and this method may further comprise the steps:
A, crimping: torsion bar or outer shaft are exerted pressure; The torsion bar that hardness is higher is connected with the lower outer shaft of hardness; The connecting bore aperture is less than the big footpath of coupling end spline, and the spline on the torsion bar is pressed in the connecting bore process, and spline squeezes out the spline that matches with spline in the connection hole;
B, riveted joint: the riveted column diameter that the torsion bar middle part is close to the spline place is bigger than connecting bore aperture; Continuation is exerted pressure to torsion bar or outer shaft and is made torsion bar continue in the outer shaft connecting bore, to be pressed into; The riveted post is partly clamp-oned the spline that the connecting bore port extrudes in the connecting bore; Connecting bore port spline is filled and led up, and made the connection hole riveted joint of torsion bar riveted post and outer shaft.
Adopt in this method of attachment from press, from the mode of riveting.Torque rod joint end spline is pressed in the connecting bore process of outer shaft; Because of torsion bar hardness ratio outer shaft height; The spline of torsion bar is equivalent to a squeezing dies, and coupling end is squeezed in the connecting bore, and the spline of torsion bar extrudes spline at the hole surface of outer shaft connecting bore; Thereby make torsion bar and outer shaft form firm interference fit and circumferentially fixing, reliable delivery moment of torsion.
Simultaneously; The connecting bore surface of outer shaft is forced out spline, when torsion bar continues in the outer shaft connecting bore, to be pressed into, because the riveted column diameter is bigger than connecting bore aperture; Therefore; The riveted post of the light circular portion of torsion bar spline back is clamp-oned the part at the spline place that extrudes in the connecting bore in the connecting bore again, and spline is filled and led up, and makes the connecting bore port form the riveting part that is complementary with the riveted post.Make that through spline and riveted post torsion bar and outer shaft circumferential and axial are all fixed.
In the method for attachment of torsion bar and outer shaft, said torque rod joint end end has the importing portion that is tapering in above-mentioned automobile steering system, in steps A, imports radicals by which characters are arranged in traditional Chinese dictionaries and is pressed into the outer shaft connection hole earlier.
Importing portion makes that the torque rod joint end can the smooth and easy outer shaft connection hole that is pressed into, and also is convenient in the next step extrusion forming to the outer shaft connection hole simultaneously.
In the method for attachment of torsion bar and outer shaft, riveted post outer end is concordant with outer shaft connecting bore port behind the said step B in above-mentioned automobile steering system.
Torsion bar and outer shaft compact conformation after the feasible connection of such structure.
In the method for attachment of torsion bar and outer shaft, the big footpath of riveted post external diameter and spline is measure-alike or bigger among the said step B in above-mentioned automobile steering system.
Such structure makes circumferential that riveted post and outer shaft can be firm fix.
Compared with prior art, the connection structure of torsion bar and outer shaft in this automobile steering system, because just torsion bar is pressed into outer shaft can accomplish installation, therefore simple in structure, technological requirement is low, and is lower than other structural requirements to the working accuracy of hole and torsion bar.
Simultaneously, make that through spline and riveted torsion bar and outer shaft circumferentially and are axially all fixed, assemble solid and reliable, stable high.
Description of drawings
Fig. 1 is the sectional structure scheme drawing of the connection structure of torsion bar and outer shaft in this automobile steering system.
Fig. 2 is along the A-A sectional structure scheme drawing among Fig. 1.
Fig. 3 is the connection structure scheme drawing that spline is pressed into the connection hole in the connection structure of torsion bar and outer shaft in this automobile steering system.
Fig. 4 is along the B-B sectional structure scheme drawing among Fig. 3.
Fig. 5 is the sectional structure scheme drawing of outer shaft in the connection structure of torsion bar and outer shaft in this automobile steering system.
Fig. 6 is along the C-C sectional structure scheme drawing among Fig. 5.
Fig. 7 is the structural representation of torsion bar in the connection structure of torsion bar and outer shaft in this automobile steering system.
Fig. 8 is the local structure scheme drawing of torsion bar in the connection structure of torsion bar and outer shaft in this automobile steering system.
Among the figure, 1, torsion bar; 1a, spline; 1b, riveted post; 1c, importing portion; 2, outer shaft; 2a, connecting bore; 2b, riveting part.
The specific embodiment
As depicted in figs. 1 and 2, an end of torsion bar 1 is a coupling end in this automobile steering system, has connecting bore 2a on the outer shaft 2.The torsion bar 1 coupling end outside has spline 1a in this connection structure.The connecting bore 2a place of outer shaft 2 has the spline that is complementary with spline 1a, and the hardness of torsion bar 1 is greater than the hardness of outer shaft 2, and spline 1a cooperates with spline makes torsion bar 1 and outer shaft 2 interference fit.
In the present embodiment, spline 1a end has the 1c of importing portion that is tapering, and the 1c of importing portion is the chamfering of spline 1a end.
Like Fig. 3-shown in Figure 8, the present invention also provides the method for attachment of above-mentioned connection structure, and this method may further comprise the steps:
A, crimping: torsion bar 1 or outer shaft 2 are exerted pressure; The torsion bar 1 that hardness is higher is connected with the lower outer shaft 2 of hardness; Connecting bore 2a aperture is less than the big footpath of spline 1a; Torsion bar 1 coupling end inserts in the connecting bore 2a process, imports radicals by which characters are arranged in traditional Chinese dictionaries and is pressed into the outer shaft connection hole earlier, and importing portion makes that the torque rod joint end can the smooth and easy outer shaft connection hole that is pressed into.Then, the spline at coupling end place squeezes out the spline that matches with spline in the connection hole.
B, riveted joint: the riveted column diameter that the torsion bar middle part is close to the spline place is bigger than connecting bore aperture; Continuation is exerted pressure when making torsion bar continue in the outer shaft connecting bore, to be pressed into to torsion bar or outer shaft; The riveted post is partly clamp-oned the spline that the connecting bore port extrudes in the connecting bore; Connecting bore port spline is filled and led up, and makes the connection hole riveted joint of torsion bar riveted post and outer shaft.Riveted post outer end is concordant with outer shaft connecting bore port in this step, and simultaneously, the big footpath of riveted post external diameter and spline is measure-alike or bigger among the step B.
Adopt in this method of attachment from press, from the mode of riveting.Torque rod joint end spline is pressed in the connecting bore process of outer shaft; Because of torsion bar hardness ratio outer shaft height; The spline of torsion bar is equivalent to a squeezing dies, and coupling end is squeezed in the connecting bore, and the spline of torsion bar extrudes spline at the hole surface of outer shaft connecting bore; Thereby make torsion bar and outer shaft form firm interference fit and circumferentially fixing, reliable delivery moment of torsion.
Simultaneously; The connecting bore surface of outer shaft is forced out spline, when torsion bar continues in the outer shaft connecting bore, to be pressed into, because the riveted column diameter is bigger than connecting bore aperture; Therefore; The riveted post of the light circular portion of torsion bar spline back is clamp-oned the part at the spline place that extrudes in the connecting bore in the connecting bore again, and spline is filled and led up, and makes the connecting bore port form the riveting part that is complementary with the riveted post.Make that through spline and riveted post torsion bar and outer shaft circumferential and axial are all fixed.
Claims (9)
1. the connection structure of torsion bar and outer shaft in the automobile steering system; One end of torsion bar (1) is a coupling end, has connecting bore (2a) on the outer shaft (2), it is characterized in that; Said torsion bar (1) coupling end has spline (1a); The connecting bore (2a) of said outer shaft (2) locates to have the spline that is complementary with spline (1a), and the hardness of said torsion bar (1) is greater than the hardness of outer shaft (2), and said spline (1a) cooperates with spline makes torsion bar (1) and outer shaft (2) circumferentially fixing.
2. the connection structure of torsion bar and outer shaft in the automobile steering system according to claim 1; It is characterized in that; Said torsion bar (1) middle part is close to the riveted post (1b) that spline (1a) locates to have column; Said connecting bore (2a) port has riveting part (2b) larger-size and that be complementary with riveted post (1b), and above-mentioned riveted post (1b) cooperates with riveting part (2b) makes torsion bar (1) and outer shaft (2) axial restraint.
3. the connection structure of torsion bar and outer shaft is characterized in that in the automobile steering system according to claim 1 and 2, and said spline (1a) end that connects has the importing portion (1c) that is tapering.
4. the connection structure of torsion bar and outer shaft is characterized in that in the automobile steering system according to claim 3, and described importing portion (1c) is the chamfering of spline (1a) end.
5. the method for attachment of the connection structure of torsion bar and outer shaft in the automobile steering system is characterized in that this method comprises step:
A, crimping: torsion bar (1) or outer shaft (2) are exerted pressure; The outer shaft (2) that the torsion bar that hardness is higher (1) is lower with hardness is connected; Connecting bore (2a) aperture is less than the big footpath of coupling end spline (1a); Spline (1a) on the torsion bar (1) is pressed in connecting bore (2a) process, and spline (1a) locates to squeeze out the spline that matches with spline (1a) at connecting bore (2a);
B, riveted joint: it is bigger than connecting bore (2a) aperture that torsion bar (1) middle part is close to riveted post (1b) diameter that spline (1a) locates; Continuation is exerted pressure to torsion bar (1) or outer shaft (2) and is made torsion bar (1) continue in outer shaft (2) connecting bore (2a), to be pressed into; Riveted post (1b) is partly clamp-oned the spline that connecting bore (2a) port extrudes in the connecting bore (2a); Connecting bore (2a) port spline is filled and led up, and made torsion bar (1) the riveted post (1b) and the connecting bore (2a) of outer shaft (2) locate riveted joint.
6. the method for attachment of the connection structure of torsion bar and outer shaft in the automobile steering system according to claim 5; It is characterized in that; Said torsion bar (1) coupling end end has the importing portion (1c) that is tapering, and importing portion (1c) at first is pressed into outer shaft (2) connecting bore (2a) and locates in steps A.
7. the method for attachment of the connection structure of torsion bar and outer shaft is characterized in that in the automobile steering system according to claim 5, and riveted post (1b) outer end is concordant with outer shaft (2) connecting bore (2a) port behind the said step B.
8. the method for attachment of the connection structure of torsion bar and outer shaft is characterized in that in the automobile steering system according to claim 5, and the big footpath of riveted post (1b) external diameter and spline (1a) is measure-alike among the said step B.
9. the method for attachment of the connection structure of torsion bar and outer shaft is characterized in that in the automobile steering system according to claim 5, and the big footpath of riveted post (1b) external diameter and spline (1a) size is bigger among the said step B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210045251.2A CN102530069B (en) | 2012-02-27 | 2012-02-27 | Structure and method for connecting torsion bar with outer shaft in automobile steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210045251.2A CN102530069B (en) | 2012-02-27 | 2012-02-27 | Structure and method for connecting torsion bar with outer shaft in automobile steering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102530069A true CN102530069A (en) | 2012-07-04 |
| CN102530069B CN102530069B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210045251.2A Active CN102530069B (en) | 2012-02-27 | 2012-02-27 | Structure and method for connecting torsion bar with outer shaft in automobile steering system |
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| Country | Link |
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| CN (1) | CN102530069B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287478A (en) * | 2013-06-19 | 2013-09-11 | 常州机电职业技术学院 | Torsion bar of steering engine and manufacturing method thereof |
| CN108791467A (en) * | 2018-07-04 | 2018-11-13 | 湖北三环汽车方向机有限公司 | A kind of New Cycle ball-type power steering gear screw axis-torsion bar assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2426201C2 (en) * | 1973-06-02 | 1985-08-08 | Bendiberica, S.A., Barcelona | Hydraulic power steering for motor vehicles |
| CN2374423Y (en) * | 1999-01-22 | 2000-04-19 | 沈培德 | Reinforced anti-side-rolling torque rod |
| KR20030027285A (en) * | 2001-09-28 | 2003-04-07 | 주식회사 만도 | Torque limiter of electric power steering system |
| CN201619601U (en) * | 2010-03-15 | 2010-11-03 | 长丰汽车(惠州)有限公司 | Assembly structure of gear shaft and torsion bar of steering device |
| CN202593610U (en) * | 2012-02-27 | 2012-12-12 | 台州永安转向器有限公司 | Connecting structure for torsion bar and outer shaft in automobile steering system |
-
2012
- 2012-02-27 CN CN201210045251.2A patent/CN102530069B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2426201C2 (en) * | 1973-06-02 | 1985-08-08 | Bendiberica, S.A., Barcelona | Hydraulic power steering for motor vehicles |
| CN2374423Y (en) * | 1999-01-22 | 2000-04-19 | 沈培德 | Reinforced anti-side-rolling torque rod |
| KR20030027285A (en) * | 2001-09-28 | 2003-04-07 | 주식회사 만도 | Torque limiter of electric power steering system |
| CN201619601U (en) * | 2010-03-15 | 2010-11-03 | 长丰汽车(惠州)有限公司 | Assembly structure of gear shaft and torsion bar of steering device |
| CN202593610U (en) * | 2012-02-27 | 2012-12-12 | 台州永安转向器有限公司 | Connecting structure for torsion bar and outer shaft in automobile steering system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287478A (en) * | 2013-06-19 | 2013-09-11 | 常州机电职业技术学院 | Torsion bar of steering engine and manufacturing method thereof |
| CN108791467A (en) * | 2018-07-04 | 2018-11-13 | 湖北三环汽车方向机有限公司 | A kind of New Cycle ball-type power steering gear screw axis-torsion bar assembly |
| CN108791467B (en) * | 2018-07-04 | 2024-01-30 | 湖北三环汽车方向机有限公司 | Screw shaft-torsion bar assembly of recirculating ball type power steering gear |
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| Publication number | Publication date |
|---|---|
| CN102530069B (en) | 2015-06-10 |
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