CN103387002A - Structure for preventing misconnection of intermediate shaft and input shaft of diverter - Google Patents
Structure for preventing misconnection of intermediate shaft and input shaft of diverter Download PDFInfo
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- CN103387002A CN103387002A CN2013103592618A CN201310359261A CN103387002A CN 103387002 A CN103387002 A CN 103387002A CN 2013103592618 A CN2013103592618 A CN 2013103592618A CN 201310359261 A CN201310359261 A CN 201310359261A CN 103387002 A CN103387002 A CN 103387002A
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- input shaft
- fastening structure
- steering gear
- bolt
- gear input
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Abstract
The invention provides a structure for preventing the misconnection of an intermediate shaft and the input shaft of a diverter, which is characterized in that a pre-insertion section is arranged for the front end of an outer spline section of the input shaft of the diverter, the diameter D1 of the pre-insertion section meets the following requirement: D1 is greater than D2 minus h and is smaller than the D2, wherein the D2 is the inner diameter of a fastening structure, the h is the distance of a bolt going deep into the fastening structure in the radial direction after the bolt is inserted in a bolt hole of the fastening structure, and meanwhile the length L1 of the pre-insertion section meets the following requirement: the L1 is greater than L2, wherein the L2 is the distance from a straight line, generated during the superposition of the diameter of the bolt and the inner diameter of the fastening structure after the bolt is inserted in the bolt hole of the fastening structure, to the insertion end of the input shaft of the diverter. The structure provided by the invention is simple, and can be used for effectively avoiding the misconnection phenomenon of the intermediate shaft and the input shaft of the diverter.
Description
Technical field
The present invention relates to automobile steering system, be specifically related to the connection structure between tween drive shaft and steering gear input shaft.
Background technology
In automobile steering system, be connected by universal-joint between the steering gear input shaft of tween drive shaft and steering assembly.The joint fork of universal-joint has female splines, steering gear input shaft has male splines, both are by inside and outside spline fitted transmitting torque, and in the fastening structure on the joint fork, inserting bolt is blocked the binding groove on steering gear input shaft and locks,, with the axial motion between restriction steering gear input shaft and universal-joint, prevent from that generation between universal-joint and steering gear input shaft from getting loose automobile to be lost turn to.But in practical set, due to narrow space, can't observe steering gear input shaft and whether insert universal-joint to correct position, therefore there will be bolt to pass the tapped bore of fastening structure but be not stuck in phenomenon in the binding groove of steering gear input shaft, this has just caused misconnection, automobile is lost suddenly turn to and accidents caused.Occurred abroad making the automaker recall in a large number the situation of automobile due to the misconnection of universal-joint and steering gear input shaft.Even and this misconnection is difficult for found reason at assembling stage and is that steering gear input shaft does not insert and puts in place, but the female splines of its male splines and universal-joint can transmitting torque, and whole steering swivel system can correctly be worked when rotating steering handwheel.
Prior art one: at application number: 200680024455.0, the applying date: 2006.07.06, priority data: 102005033627.22005.07.19DE, denomination of invention: the Chinese invention patent of " being used for connecting the device of the driving gear shaft of tween drive shaft and steering structure ", what adopt is namely the mode that tapped bore that fastening bolt passes fastening parts blocks the driving gear shaft (being steering gear input shaft) of steering hardware, and the contriver guarantees by clamping element is set on fastening bolt the steadiness that connects.But this invention and unresolved steering gear input shaft do not insert the misconnection problem that puts in place and cause.
Prior art two: at application number: 201120166238.3, the applying date: 2011.05.24, utility model title: in the Chinese utility model patent of " a kind of steering gear input shaft with stopper ", the contriver by arrange on steering gear input shaft boss solve in the middle of joint fork cover downslide problem.What but this structure prevented is the problem that steering gear input shaft and universal-joint excessively insert, and can not solve steering gear input shaft and insert problem not in place.
Prior art three: at application number: 200910184949.0, the applying date: 2009.10.22, denomination of invention: in the Chinese invention patent of " a kind of steering transmission device for vehicle ", disclose the double D structure that the lower cardan of tween drive shaft is connected with steering box, this structure is identical with the fastening parts structure in prior art one.
Prior art four: at application number: 201210132147.7, the applying date: 2012.04.28, denomination of invention: in the Chinese invention patent application of " a kind of connection structure of automobile steering system ", a kind of universal-joint is disclosed, bolt inserts after the tapped bore of universal-joint fixedly input shaft, and this universal-joint itself has the structure that is similar to fastening parts or double D.The contriver of this patent application makes up gap error by the mode that the input axle sleeve is set, but input axle sleeve itself does not possess anti-misloading function.
Prior art five: at application number: 201120416581.9, the applying date: 2011.10.28, utility model title: in the Chinese utility model patent of " a kind of steering universal joint assembly with error prevention device ", the contriver axially slots at the deflector mounting pipe cover that turns to lower joint fork, and mounting blocks is set and has elastomeric banking stop, block the tapped bore that pipe box is installed in the banking stop insertion groove, only when steering gear input shaft insert put in place back down banking stop after the ability hold-down bolt.This scheme has solved the misconnection problem, but this need to increase parts for universal-joint, at first with mounting blocks with banking stop is installed on universal-joint and keep its position itself more difficult with regard to tool, secondly after assembling is completed, banking stop has been stayed in connection structure, it can bring to the spline of universal-joint or steering gear input shaft interference, infringement, moment of torsion transmission between universal-joint and steering gear input shaft is brought adverse effect, and at the connection location place, produced noise problem.
Summary of the invention
The objective of the invention is to overcome the problems referred to above, the connection structure that a kind of structure is simpler, be more convenient for assembling and can effectively prevent tween drive shaft and steering gear input shaft generation misconnection is provided.
For achieving the above object, the invention provides following technical scheme:
a kind of tween drive shaft and steering gear input shaft anti-misconnection structure, comprising: steering gear input shaft, tween drive shaft, universal-joint, described universal-joint one end is connected with described tween drive shaft, the other end has fastening structure, described fastening structure has female splines and has bolt hole, one end of described steering gear input shaft has outer spline section, described outer spline section has circumferential binding groove, in described steering gear input shaft and described fastening structure pass through, the cooperation transmitting torque of male splines, and in the bolt hole of described fastening structure, inserting bolt is blocked described binding groove to limit the axial relative motion of described steering gear input shaft and described fastening structure, the outer spline section front end of described steering gear input shaft has pre-inserting paragraph, the diameter D1 of described pre-inserting paragraph meets following the requirement:
（D2-h）＜D1＜D2，
Wherein, D2 is the internal diameter of described fastening structure, h be after inserting described bolt in the bolt hole of described fastening structure described bolt in the distance that protrudes in the radial direction described fastening structure inside;
Simultaneously, the length L 1 of described pre-inserting paragraph meets following the requirement:
L1>L2，
Wherein, L2 inserts after described bolt straight line when the diameter of described bolt overlaps with the internal diameter of described fastening structure to arrive distance between the steering gear input shaft insertion end of described fastening structure in the bolt hole of described fastening structure.
Beneficial effect of the present invention is:
The present invention has processed pre-inserting paragraph at the outer spline section front end of steering gear input shaft, and length, the diameter of pre-inserting paragraph meet above-mentioned formula, while therefore assembling on manufacturing line, if it is inner or before this with regard to binding bolt to only have pre-inserting paragraph to insert fastening structure, this moment, male splines did not coordinate with female splines, rotate steering handwheel this moment, and steering swivel system can not work, and therefore can in time find the misconnection phenomenon; And after pre-inserting paragraph is inserted fully, before binding groove does not put in place, although interior male splines has produced cooperation, but, due to the stopping of pre-inserting paragraph, can't carry out the bolted operation, therefore also can in time find the misconnection phenomenon; And only have binding groove to put in place, after meaning that namely the steering gear input shaft insertion puts in place, bolt could coordinate the axial motion to steering gear input shaft to limit with binding groove.Therefore, the present invention has avoided the misconnection between tween drive shaft and steering gear input shaft effectively, and, the present invention has just increased pre-inserting paragraph on existing steering gear input shaft, this is easily to realize in the production phase, and do not need to increase other parts, therefore can not bring thus to produce noise and to the infringement problem of other parts.
Description of drawings
Next in connection with accompanying drawing, specific embodiments of the invention are described in further detail, wherein:
Fig. 1 is associated components annexation schematic diagram in automobile steering system;
Fig. 2 is the partial enlarged drawing of the A part in Fig. 1;
Fig. 3 is the cutaway view along the B-B line in Fig. 2, and it has shown each self-structure that connects front fastening structure in the prior art and turn to input shaft;
Fig. 4 is the view that is similar to Fig. 3, and it has shown fastening structure and the exact connect ion structure that turns to input shaft in the prior art;
Fig. 5 is the view that is similar to Fig. 3 and Fig. 4, and it has shown fastening structure and the misconnection structure that turns to input shaft in the prior art;
Fig. 6 has shown the end construction of the steering gear input shaft in embodiments of the invention;
Fig. 7 has shown that the steering gear input shaft in embodiments of the invention inserts the first stage process of fastening structure;
Fig. 8 has shown that the steering gear input shaft in embodiments of the invention inserts the subordinate phase process of fastening structure;
Fig. 9 has shown that the steering gear input shaft in embodiments of the invention inserts the phase III process of fastening structure.
Description of symbols in upper figure: steering handwheel 1, column assy 2, tween drive shaft 3, universal-joint 4, steering gear input shaft 5, deflector 6, bolt 7, input axle sleeve 8, fastening structure 41, bolt hole 42, outer spline section 51, binding groove 52, pre-inserting paragraph 53, straight line S1, steering gear input shaft insertion end 411.
The specific embodiment
With reference to figure 1, it has shown in the automobile steering system annexation of each parts between 6 from steering handwheel 1 to deflector.Chaufeur rotates steering handwheel 1, steering column 2 passes to tween drive shaft 3 with this handling maneuver, tween drive shaft 3 passes to steering gear input shaft 5 by universal-joint 4 with rotation again, steering gear input shaft 5 by with deflector 6 between gear, tooth bar the mode such as coordinate the rotation of steering handwheel 1 to be converted to the straight-line motion of deflector 6, and then pull wheel to make motor turning.Effective connection in figure between each parts and transmission are vital for vehicle safety travel, in case occur that incorrect link namely likely causes severe traffic accidents.
With reference to figure 2, it has shown the connection mode between tween drive shaft 3 and steering gear input shaft 5.As seen from the figure, universal-joint 4 one ends are connected with tween drive shaft 3, and the other end has fastening structure 41, and fastening structure 41 is connected with steering gear input shaft 5 again, thereby transmit the moment of torsion of tween drive shaft 3 and change its direction.In ensuing description, fastening structure 41 adopts is structure described in prior art four or prior art five, be that fastening structure 41 itself is also the part of universal-joint 4, but those of ordinary skills can imagine at an easy rate, fastening structure 41 can also be to be similar to fastening parts in prior art one or the double D structure in prior art three, and namely then fastening structure 41 itself can be attached on universal-joint 4 as an independent part." other end has fastening structure 41 " in this specification sheets comprised above-mentioned two situations.
For clear, in ensuing accompanying drawing 3-5,7-9, only show the cut-away section of the lower joint fork of universal-joint 4, divide and omitted upper joint fork.Simultaneously, it should be understood by one skilled in the art that in the present invention, universal-joint 4 not only can be the universal-joint of the joint V shape shown in figure, can also be the universal-joint of other forms such as ball cage type.
With reference to figure 3.Under prior art, fastening structure 41 has female splines and has bolt hole 42, and an end of steering gear input shaft 5 only has outer spline section 51, and the axle that perhaps also has stretches out a bit of again in outer spline section 51 the place aheads, only plays the directional tagging while installing.Outer spline section 51 has circumferential binding groove 52.In order to make up tolerance clearance, input axle sleeve 8 is set sometimes also.
With reference to figure 4, in the prior art, during exact connect ion, steering gear input shaft 5 inserts fastening structure 41 inside, and both are by the cooperation transmitting torque of inside and outside spline.Steering gear input shaft 5 inserts and puts in place, be after binding groove 52 arrives bolt hole 42 positions, inserting bolt 7 in the bolt hole 42 of fastening structure 41, bolt 7 blocks binding groove 52 to limit the axial relative motion of steering gear input shaft 5 and fastening structure 41, prevents in steering procedure between universal-joint 4 and steering gear input shaft 5 that disengagement makes the moment of torsion of tween drive shaft 3 can't be passed to steering gear input shaft 5.
With reference to figure 5, it has shown the situation of the incorrect link that occurs in the prior art.On the auto production line of reality, while assembling,, due to narrow space, turn and join personnel and can't observe bolt 7 and whether really blocked binding groove 52.And in situation shown in Figure 5, steering gear input shaft 5 does not insert in situation about putting in place has just completed the fastening of bolt 7, although this moment, bolt 7 did not block binding groove 52, but during the assembling test, therefore owing to there being one section male splines to produce and coordinated with female splines, while rotating steering handwheel 1, moment of torsion can normal delivery, namely In the view of the assembly crewman, the steering swivel system of whole automobile is to connect normally, and the incorrect link in Fig. 5 can not be found.And in case this situation occurs, after automobile normally dispatched from the factory, chaufeur drove a car after a period of time, and steering gear input shaft 5 is probably deviate from suddenly from fastening structure 41, cause automobile to lose to turn to, and this is danger close.
In conjunction with Fig. 6 to Fig. 9, in the present invention, the front end of the outer spline section 51 of steering gear input shaft 5 has also stretched out one section pre-inserting paragraph 53, and the diameter D1 of this pre-inserting paragraph 53 meets following the requirement:
（D2-h）＜D1＜D2；
Wherein, D2 is the internal diameter of fastening structure 41, and h is in the bolt hole 42 of fastening structure 41 after inserting bolt 7, and bolt 7 is in the distance that protrudes in the radial direction fastening structure 41 inside;
Simultaneously, the length L 1 of pre-inserting paragraph 41 meets following the requirement:
L1>L2；
Wherein, L2 is in the bolt hole 42 of fastening structure 41 after inserting bolt 7, and the straight line S1 the when diameter of bolt 7 overlaps with the internal diameter of fastening structure 41 is to the distance between the steering gear input shaft insertion end 411 of fastening structure 41.
With reference to figure 7.At first stage, the pre-inserting paragraph 53 of steering gear input shaft 5 is from holding 411 to start at first to insert in fastening structure 41, due to the certain D1 of D1＜D2(also less than the external diameter of outer spline section 51), free-running fit between therefore pre-inserting paragraph 53 and fastening structure 41, no matter whether have male splines on inserting paragraph 53 in advance, the moment of torsion of tween drive shaft 3 all can't only depend on pre-inserting paragraph 53 to be passed to steering gear input shaft 5.And due to L1 L2, therefore until before arrival straight line S1 position, the top of pre-inserting paragraph 53, outer spline section 51 does not insert fastening structure 4, that is to say that outer spline section 51 can't coordinate transmitting torque with the female splines of fastening structure 41 always.Therefore at first stage, although bolt 7 can inserting bolt hole 42, formed the misconnection that is similar to Fig. 5, but when the assembly crewman detects, the moment of torsion of steering handwheel 1 can't be passed to steering gear input shaft 5, deflector 6 and wheel attonity, steering swivel system is inoperative, and the assembly crewman can find this misconnection and corrigendum soon.
With reference to figure 8, if first stage not inserting bolt 7 carry out fastening, steering gear input shaft 5 can be continued to insert fastening structure 41, but before steering gear input shaft 5 puts in place, before namely binding groove 52 arrives the position of bolt hole 42, due to (D2-h)＜D1, if therefore in this stage inserting bolt 7, bolt 7 can produce and interfere with pre-inserting paragraph 53 or outer spline section 51, and bolt 7 can't pass bolt hole 42, and the assembly crewman can't complete connection.
With reference to figure 9, in the phase III, steering gear input shaft 5 puts in place, and namely binding groove 52 arrives the position of bolt hole 42, and inserting bolt hole 42 is also fastening smoothly for bolt 7 at this moment, blocks binding groove 52, realizes the exact connect ion between tween drive shaft 3 and steering gear input shaft 5.
In sum, in whole fitting process, at first stage, misconnection can be easy to be found and then avoided, and in subordinate phase, misconnection can't occur, and only in the phase III, can realize exact connect ion, therefore before automobile dispatched from the factory, misconnection problem of the prior art was namely avoided.And for car manufactures or fittings supply business, be that to process the pre-inserting paragraph that meets dimensional characteristic be quite to be easy to steering gear input shaft 5 in the production phase, substantially do not need to increase manufacturing procedure or cost, nor need to increase any other annex, can not bring problem on difficulty and physical construction to the assembly crewman yet.
Although in the present invention not the length upper limit to pre-inserting paragraph L1 limit, those of ordinary skills are to be understood that, the length of pre-inserting paragraph L1 can endless, and it is fixed that its length upper limit will be come according to the concrete length of fastening structure 41, with the normal operation that does not hinder universal-joint 4, is limited.
Although the present invention is described in conjunction with above embodiment, the present invention is not defined to above-described embodiment, and those of ordinary skills can easily carry out equivalence to it and replace and modification, but does not leave the protection domain of claim of the present invention.
Claims (1)
1. a tween drive shaft and steering gear input shaft anti-misconnection structure comprise:
Steering gear input shaft;
Tween drive shaft;
Universal-joint;
described universal-joint one end is connected with described tween drive shaft, the other end has fastening structure, described fastening structure has female splines and has bolt hole, one end of described steering gear input shaft has outer spline section, described outer spline section has circumferential binding groove, in described steering gear input shaft and described fastening structure pass through, the cooperation transmitting torque of male splines, and in the bolt hole of described fastening structure, inserting bolt is blocked described binding groove to limit the axial relative motion of described steering gear input shaft and described fastening structure, it is characterized in that, the outer spline section front end of described steering gear input shaft has pre-inserting paragraph, the diameter D1 of described pre-inserting paragraph meets following the requirement:
（D2-h）＜D1＜D2，
Wherein, D2 is the internal diameter of described fastening structure, and h is that after inserting described bolt in the bolt hole of described fastening structure, described bolt is in the distance that protrudes in the radial direction described fastening structure inside;
Simultaneously, the length L 1 of described pre-inserting paragraph meets following the requirement:
L1>L2，
Wherein, L2 is that after inserting described bolt in the bolt hole of described fastening structure, the straight line the when diameter of described bolt overlaps with the internal diameter of described fastening structure arrives the distance between the steering gear input shaft insertion end of described fastening structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103592618A CN103387002A (en) | 2013-08-16 | 2013-08-16 | Structure for preventing misconnection of intermediate shaft and input shaft of diverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103592618A CN103387002A (en) | 2013-08-16 | 2013-08-16 | Structure for preventing misconnection of intermediate shaft and input shaft of diverter |
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| CN103387002A true CN103387002A (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013103592618A Pending CN103387002A (en) | 2013-08-16 | 2013-08-16 | Structure for preventing misconnection of intermediate shaft and input shaft of diverter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494686A (en) * | 2014-12-03 | 2015-04-08 | 安徽江淮汽车股份有限公司 | Steering gear assembly and vehicle |
| CN107191499A (en) * | 2017-05-23 | 2017-09-22 | 万向进出口有限公司 | A kind of new constant velocity cardan joint internal spline axial fixing structure |
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| CN101522503A (en) * | 2006-08-02 | 2009-09-02 | 雷诺股份公司 | Linkage device for a steering system |
| CN101939206A (en) * | 2009-04-07 | 2011-01-05 | 丰田自动车株式会社 | Shaft coupling structure |
| JP2011163482A (en) * | 2010-02-12 | 2011-08-25 | Suzuki Motor Corp | Connecting structure between shaft member and receiving member |
| CN103057580A (en) * | 2011-10-24 | 2013-04-24 | 万都株式会社 | Steering shaft with misassembly prevention structure |
| CN203381677U (en) * | 2013-08-16 | 2014-01-08 | 安徽江淮汽车股份有限公司 | Misconnection preventing structure of intermediate shaft and steering gear input shaft |
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2013
- 2013-08-16 CN CN2013103592618A patent/CN103387002A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821603A (en) * | 2005-02-17 | 2006-08-23 | 株式会社捷太格特 | Tool for preventing an erroneous assembly of universal joints and universal joint |
| JP2007232004A (en) * | 2006-02-28 | 2007-09-13 | Nsk Ltd | Joint structure of universal joint with shaft |
| CN101522503A (en) * | 2006-08-02 | 2009-09-02 | 雷诺股份公司 | Linkage device for a steering system |
| CN101939206A (en) * | 2009-04-07 | 2011-01-05 | 丰田自动车株式会社 | Shaft coupling structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494686A (en) * | 2014-12-03 | 2015-04-08 | 安徽江淮汽车股份有限公司 | Steering gear assembly and vehicle |
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| CN107191499A (en) * | 2017-05-23 | 2017-09-22 | 万向进出口有限公司 | A kind of new constant velocity cardan joint internal spline axial fixing structure |
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Application publication date: 20131113 |