CN105835940A - Steering column and automobile steering system - Google Patents
Steering column and automobile steering system Download PDFInfo
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- CN105835940A CN105835940A CN201610194407.1A CN201610194407A CN105835940A CN 105835940 A CN105835940 A CN 105835940A CN 201610194407 A CN201610194407 A CN 201610194407A CN 105835940 A CN105835940 A CN 105835940A
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- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000006096 absorbing agent Substances 0.000 description 18
- 238000000418 atomic force spectrum Methods 0.000 description 10
- 239000004677 Nylon Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 229920001778 nylon Polymers 0.000 description 6
- 230000003068 static effect Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
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- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010019196 Head injury Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000641 cold extrusion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/19—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
- B62D1/192—Yieldable or collapsible columns
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- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
Abstract
The invention provides a steering column and an automobile steering system. The steering column comprises an upper pipe, a lower pipe, a bush, an upper mandrel, a lower mandrel, a pipe column support and a pressing force adjusting mechanism. An upper pipe support pressed to the outer side of the pipe column support is arranged on the periphery of the upper pipe. The pressing force adjusting mechanism is used for the pressing force applied to the upper pipe support by the pipe column support. The lower pipe partially extends into the upper pipe. The bush is pressed to the position between the upper pipe and the lower pipe. The upper mandrel is a hollow shaft and is inserted in the upper pipe and the lower pipe. The lower mandrel comprises a mandrel body part. Multiple arc-shaped grooves extending in the axial direction are formed in the periphery of the mandrel body part. The upper mandrel is provided with at least one multi-blade-shaped shaft segment. The multi-blade-shaped shaft segments comprise multiple arc-shaped recessed parts corresponding to the arc-shaped grooves in number. The inner side walls of the arc-shaped recessed parts are in interference contact with the bottom faces of the arc-shaped grooves. By the adoption of the steering column, the sustaining force large enough is obtained at the later half collapsing stage, and a better energy absorption effect is achieved.
Description
Technical field
The invention belongs to Automotive Steering Technology field, particularly relate to a kind of steering column and automobile steering system.
Background technology
Steering is one of important system of automobile chassis, and the effect of steering is to make driver act on moment on the steering wheel to pass through steering column, jackshaft, turn to the parts such as machine, track rod to be converted into the motion of wheel, it is achieved the purpose turned to.
Steering column is the vitals of steering, is also the safe level functor on automobile, has the advantages that structure is complicated, functional requirement is many.Its major function includes: steering-wheel torque is delivered to steering intermediate shaft；There is provided for opponent's parts such as steering wheel, ignition lock and cubicle switchs and support etc. is installed.
Preferably protect driver during for making collision occur, steering column be it is also proposed requirement.Collapsible steering column has become the mainstay of steering column, and the quality of crumple performance is directly connected to the life security of driver, and therefore design crumple steering column of good performance is significant.
For solving the problems referred to above, it is desirable to steering column occurs crumple in collision start time, the most provides more vivosphere for driver.Simultaneously after crumple occurs in a period of time, the crumple that steering column can not be too fast is on earth, in addition it is also necessary to be continuously steering wheel, air bag provides support force, continues energy-absorbing.This just requires:
(1) tubing string crumple starting force can not excessive (the biggest, the active force of air bag can not make tubing string crumple), can not too small (there is crumple tubing string generation crumple when easily making normally to use the most easily, destroy tubing string)；
(2) vitality size to fit (the biggest vitality makes crumple insufficient, and the least crumple power can not play energy-absorbing function) during crumple.
Existing a kind of steering column, it includes internal spline, external splines, inner tube, outer tube, the second support and for the first support being fixed on vehicle body；Second support and the first support are riveted by energy-absorbing pin；Outer tube is fixed on the second support；Inner pipe portion extends in outer tube, and is connected with outer tube；When energy-absorbing pin ruptures, the second support can be along inner tube axially-movable together with outer tube；The external splines being arranged in inner tube and the internal spline spline being arranged in outer tube connect；Steering column also includes pad, fastening bolt and for the 3rd support being fixed on vehicle body；Having along the axially arranged chute of outer tube on 3rd support, pad and the second support lay respectively at the 3rd support two sides and by connecting through the fastening bolt of chute is fixing, and pad and the second support are all along fastening bolt axial compression the 3rd support.
In this steering column, first energy absorber includes the first support, energy-absorbing pin, the second support, second energy absorber includes that the 3rd support, the 3rd energy absorber include the nylon coating that external splines, internal spline and interference are filled in the gap between external splines and internal spline.
When outer tube is by impulsive force, producing the trend moved along outer tube pipe axially inward, when the shearing force that impulsive force can bear more than energy-absorbing pin, energy-absorbing pin ruptures, plays the effect of energy-absorbing.Then, fastening bolt the frictional force between the pad and the second support and the 3rd support that connect carries out energy-absorbing.The nylon coating filled by interference makes to there is certain frictional force between internal spline and external splines, improves energy-absorbing effect further.
Visible, existing steering column, the first energy absorber realizes energy-absorbing by the fracture of energy-absorbing pin；Second endergonic structure carries out energy-absorbing by the frictional force between pad and the second support and the 3rd support；3rd energy absorber makes to there is certain frictional force between internal spline and external splines by the nylon coating that interference is filled and realizes energy-absorbing.
Fig. 1 is the existing steering column crumple force curve that inventor measures, it is appreciated that from figure, crumple force curve exists a kurtosis, and (crumple peak value a), crumple peak value a are together decided on by the first energy absorber, the second energy absorber and the 3rd energy absorber.The excessive then steering wheel of crumple peak value a and air bag can not down crumple, easily cause driver head's injury.Peak value a is too small in crumple, easily causes tubing string crumple too fast (too easily crumple), and it is inadequate to there is tubing string retentivity, the possibility that the possible maloperation of driver causes tubing string to destroy.Visible, when designing steering column, the first necessary suitable size meeting crumple peak value a.This steering column, after energy-absorbing pin ruptures, owing to the first energy absorber had lost efficacy, on the right side of crumple peak value a, crumple power (vitality) is mainly provided by the second energy absorber and the 3rd energy absorber, the decline (dropping near 1700N near 3700N) it is therefore provided that vitality is suddenlyd change rapidly after crossing crumple peak value a.Visible, existing steering column, on the premise of must being fulfilled for crumple peak value a requirement, the second half vitality tending to cause steering column crumple is not enough, and then energy-absorbing effect is had a greatly reduced quality.
And, 3rd energy absorber makes to there is certain frictional force between internal spline and external splines by the nylon coating that interference is filled and realizes energy-absorbing, this kind of energy-absorbing scheme has following defects that one, frictional force between internal spline and external splines is provided by nylon coating, the frictional force between internal spline and external splines is caused to be difficult to control, thus, the crumple power contribution to entirety of the 3rd energy absorber is wayward；Its two, interference fill nylon coating add manufacturing cost.
It addition, existing steering column, the first energy absorber owing to using the mode energy-absorbing cutting off energy-absorbing pin, thus, the first energy absorber wayward to overall crumple power contribution.
Owing to the first energy absorber and the 3rd energy absorber are the most wayward to overall crumple power contribution so that existing steering column crumple process is wayward, hardly results in preferable steering column crumple force curve, and energy-absorbing effect is the best.
Additionally, the slightly aobvious complexity of the first energy absorber structure comprising the first support, energy-absorbing pin and the second support.
Summary of the invention
The technical problem to be solved is not enough for the second half vitality during its generation crumple of existing steering column, causes the defect that energy-absorbing effect is the best, it is provided that a kind of steering column.
The present invention solves the technical scheme that above-mentioned technical problem used:
A kind of steering column of offer, including upper pipe, down tube, lining, upper spindle, lower spindle, tubular column bracket and thrust governor motion, wherein,
Being provided with the upper pipe holder being pressed on outside tubular column bracket on described upper pipe periphery, described thrust governor motion is for regulating the described tubular column bracket thrust to described upper pipe holder；
Described down tube extends partially in described upper pipe, and described bushing press-mounting is managed between down tube on described；
Described upper spindle is hollow axle, and inserts in described upper pipe and down tube；Described lower spindle includes axis body part, the a plurality of arcuate groove axially extended it is provided with on described axis body portion perimeter, described upper spindle has at least one multi-leaf-shaped shaft part, described multi-leaf-shaped shaft part includes and multiple arc-shaped recess of described arcuate groove respective amount, the medial wall of described arc-shaped recess and the bottom surface Interference contact of described arcuate groove.
Further, the bottom surface of described arcuate groove having primary importance and the second position, the form that the medial wall of described arc-shaped recess contacts with point cantact or face with the bottom surface of described arcuate groove in described primary importance and the second position forms Interference contact.
Further, described primary importance and the second position are symmetrical about the extreme lower position of described arcuate groove.
Further, described arcuate groove is circular arc, described arc-shaped recess, in " W " shape, the medial wall of the arc-shaped recess of described " W " shape is formed with two symmetrical arch, described primary importance and two positions contacted with said two arch on the bottom surface that the second position is described arcuate groove.
Further, described a plurality of arcuate groove is equidistantly arranged along the peripheral direction of described axis body part, and the plurality of arc-shaped recess is equidistantly arranged along the peripheral direction of described multi-leaf-shaped shaft part.
Further, described tubular column bracket includes being connected to the fixed plate of instrument panel tube beam, being connected to the first wing plate of described fixed plate side and be connected to the second wing plate of described fixed plate opposite side；Described upper pipe holder includes top board, the first side plate being connected to described top board side and is connected to the second side plate of described top board opposite side, described first side plate and the second side plate are fixed on the periphery of described upper pipe, and described first wing plate and the second wing plate are pressed on described first side plate and the second side plate respectively.
Further, described first wing plate and the second wing plate are respectively formed with the first slotted eye and the second slotted eye, described first side plate and the second side plate are respectively formed with the first chute and the second chute；nullDescribed thrust governor motion includes handle、Fixing cam、Movable cam、Screw rod、Nut and pad，Described handle is fixed on one end of described screw rod，Described fixing cam sleeve is located on described screw rod and is fixed on the inner side of described handle，Described movable cam is placed between described fixing cam and described first wing plate，The side that described fixing cam deviates from described handle is provided with the first tooth，The second tooth mated with described first tooth that described movable cam is arranged near the side of described fixing cam，Described movable cam deviates from the side of described fixing cam and is provided with the rotary stopper block inserted in described first slotted eye，Described screw rod sequentially pass through described first slotted eye、First chute、Second chute and the second slotted eye，Described pad is set in the end of described screw rod，Described nut in the outside of described pad so that described pad is pressed on the outside of described second wing plate.
Further, described tubular bracket forms turnup structure respectively at the marginal position of described fixed plate, the first wing plate and the second wing plate.
Further, described steering column also includes that back-moving spring, one end of described back-moving spring are connected in the fixed plate of described tubular column bracket, and the other end is connected on the periphery of described upper pipe.
Steering column according to the present invention, when steering column generation crumple, the opposite force (i.e. crumple power) stoping movement is produced by following three energy absorbing portion, and one is, frictional force produced by the bottom surface Interference contact of the medial wall of the arc-shaped recess of upper spindle and the arcuate groove of lower spindle；Two are, the frictional force between upper pipe, lining and down tube three；Three are, the frictional force between tubular column bracket and upper pipe holder.When impulsive force is more than the stiction summation at three, crumple power reaches crumple peak value, afterwards, upper pipe slides relative to down tube, upper spindle slides relative to lower mandrel, upper pipe holder slides relative to tubular column bracket, the stiction summation that the vitality of the second half produces when mainly being slided by above three provides, relative to prior art, the steering column of the present invention, after crumple peak value, energy absorbing portion is still effective at three, and during tubing string crumple, the second half has sufficiently large vitality, it is thus possible to have more preferable energy-absorbing effect.And, in the case of material is certain, the adjustment of the frictional force (static friction and dynamic friction) of energy absorbing portion at three can be realized by the associated components size and pretightning force adjusting corresponding energy absorbing portion, flexible design, and the frictional force size of often locating energy absorbing portion is easily controllable, it is easy to be met the steering column crumple force curve of requirement.Further, relative to prior art, the parts such as pin are eliminated, it is possible to simplify the structure of steering column.
It addition, present invention also offers a kind of automobile steering system, it includes above-mentioned steering column.
Accompanying drawing explanation
Fig. 1 is the steering column crumple force curve of the CN203158060U that inventor measures；
Fig. 2 is the steering column crumple force curve of one embodiment of the invention that inventor measures；
Fig. 3 is the structural representation of the steering column that one embodiment of the invention provides；
Fig. 4 is the sectional view in A-A direction along Fig. 3；
Fig. 5 is the structural representation of its lower spindle of steering column that one embodiment of the invention provides；
Fig. 6 is its upper spindle of the steering column installation diagram with lower spindle of one embodiment of the invention offer；
Fig. 7 is the sectional view (amplification) in B-B direction along Fig. 6；
Fig. 8 is the structural representation of its tubular column bracket of steering column that one embodiment of the invention provides；
Fig. 9 is the structural representation of its thrust governor motion of steering column that one embodiment of the invention provides；
Figure 10 is its thrust governor motion of the steering column assembling schematic diagram with steering column of one embodiment of the invention offer；
Figure 11 is steering column and instrument panel tube beam and the assembling schematic diagram of steering wheel of one embodiment of the invention offer；
Figure 12 is the structural representation of the automobile steering system that one embodiment of the invention provides.
Reference in description is as follows:
1, upper pipe；2, down tube；3, lining；4, upper spindle；41, multi-leaf-shaped shaft part；411, arc-shaped recess；412, arch；5, lower spindle；51, axis body part；511, arcuate groove；6, tubular column bracket；61, fixed plate；62, the first wing plate；621, the first slotted eye；63, the second wing plate；631, the second slotted eye；64, turnup structure；7, thrust governor motion；71, handle；72, fixing cam；721, the first tooth；73, movable cam；731, the second tooth；732, rotary stopper block；74, screw rod；75, nut；76, pad；8, upper pipe holder；81, top board；82, the first side plate；821, the first chute；83, the second side plate；831, the second chute；9, clutch shaft bearing；10, instrument panel tube beam；20, back-moving spring；100, steering column；200, steering wheel；300, power steering apparatus；400, jackshaft.
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figures 3 and 4, the steering column 100 that one embodiment of the invention provides, including upper pipe 1, down tube 2, lining 3, upper spindle 4, lower spindle 5, tubular column bracket 6 and thrust governor motion 7, wherein, being provided with the upper pipe holder 8 being pressed on outside tubular column bracket 6 on described upper pipe 1 periphery, described thrust governor motion is for regulating the described tubular column bracket 6 thrust to described upper pipe holder 8.
As it is shown on figure 3, described down tube 2 extends partially in described upper pipe 1, described lining 3 is fitted between described upper pipe 1 and down tube 2.
Under normal circumstances, there is not relative displacement between lining 3 and upper pipe 1, down tube 2.When collision causes steering column crumple, owing to down tube 2 is fixed on vehicle body, upper pipe 2 drivening piece lining 3 slides downwardly together, forms sliding friction between lining 3 and upper pipe 2, down tube 3.So, the compression degree of the size and lining by controlling these three part can change frictional force (static friction and the dynamic friction) size at this.
As it is shown on figure 3, described upper spindle 4 is hollow axle, and insert in described upper pipe 1 and down tube 2；Described lower spindle 5 includes axis body part 51, four arcuate grooves 511 axially extended it are provided with on described axis body part 51 periphery, described upper spindle 4 has two multi-leaf-shaped shaft parts 41, described multi-leaf-shaped shaft part 41 includes the bottom surface Interference contact of four arc-shaped recess 411 corresponding with described arcuate groove 511, the medial wall of described arc-shaped recess 411 and described arcuate groove 511.In the case of upper spindle 4, the material of lower spindle 5, size determine, by controlling the magnitude of interference of upper spindle 4 and lower spindle 5, frictional force size herein can be controlled easily.
In the present embodiment, the arc-shaped recess 411 of upper spindle and the arcuate groove 511 of lower spindle are all obtained by cold extrusion shaped.
It addition, in other embodiments, multi-leaf-shaped shaft part 41 is not limited to two.According to intensity and force of sliding friction requirement, multi-leaf-shaped shaft part 41 can be one or more than three.
Under normal circumstances, the driving torque of steering wheel can be passed to lower spindle via upper spindle by the Interference contact of upper and lower mandrel.When collision causes steering column crumple, upper and lower mandrel can be slided (arc-shaped recess is slided in arcuate groove axis) relatively, produces force of sliding friction, continues energy-absorbing.
As shown in Figure 7, having primary importance L1 and second position L2 on the bottom surface of described arcuate groove 511, the form that the medial wall of described arc-shaped recess 411 contacts with point cantact or face with the bottom surface of described arcuate groove 511 in described primary importance L1 and second position L2 forms Interference contact.Described primary importance L1 and second position L2 are symmetrical about the extreme lower position of described arcuate groove 511.Upper spindle 4 and lower spindle 5 Interference contact symmetrically on this position symmetrical at two of primary importance L1 and second position L2 so that when steering column commutates, upper spindle 4 and lower spindle 5 are constantly in contact condition, it is to avoid commutation noise.
In one embodiment, as shown in Figure 7, described arcuate groove 511 is in circular arc, described arc-shaped recess 411 is in " W " shape, two symmetrical arch 412, described primary importance L1 and two positions contacted on the bottom surface that second position L2 is described arcuate groove 511 it are formed with said two arch 412 on the medial wall of the arc-shaped recess 411 of described " W " shape.
Certainly, in other embodiments, it is also possible to realize arc-shaped recess 411 and arcuate groove 511 contacting on two positions by forming two symmetrical arc surfaces on the medial wall of arc-shaped recess 411.
As it is shown on figure 3, be provided with the first block bearing 9 between described upper spindle 4 and upper pipe 1, realize the support between upper spindle 4 and upper pipe 1 with this；Similarly, it is provided with the second block bearing (not indicating in figure) between described lower spindle 5 and down tube 2, realizes the support between lower spindle 5 and down tube 2 with this.
As shown in Fig. 3, Fig. 8 and Figure 11, described tubular column bracket 6 includes being connected to the fixed plate 61 of instrument panel tube beam 10, being connected to the first wing plate 62 of described fixed plate 61 side and be connected to the second wing plate 63 of described fixed plate 6 opposite side；Described upper pipe holder 8 includes top board 81, the first side plate 82 being connected to described top board 81 side and is connected to the second side plate 83 of described top board opposite side, described first side plate 82 and the second side plate 83 are fixed on the periphery of described upper pipe 1, and described first wing plate 62 and the second wing plate 63 are pressed on described first side plate 82 and the second side plate 83 respectively.
As shown in Fig. 4, Fig. 8 and Figure 12, described first wing plate 62 and the second wing plate 63 are respectively formed with the first slotted eye 621 and the second slotted eye 631, described first side plate 82 and the second side plate 83 are respectively formed with the first chute 821 and the second chute 831.
nullAs shown in Figures 8 to 10，Described thrust governor motion 7 includes handle 71、Fixing cam 72、Movable cam 73、Screw rod 74、Nut 75 and pad 76，Described handle 71 is fixed on one end of described screw rod 74，Described fixing cam 72 is set on described screw rod 74 and is fixed on the inner side of described handle 71，Described movable cam 73 is placed between described fixing cam 72 and described first wing plate 62，Described fixing cam 72 deviates from the side of described handle 71 and is provided with the first tooth 721，The second tooth 731 mated with described first tooth 721 that described movable cam 73 is arranged near the side of described fixing cam 72，Described movable cam 73 deviates from the side of described fixing cam 72 and is provided with the rotary stopper block 732 inserted in described first slotted eye 621，Rotation in order to restraint cam 73 phase tubular column bracket 6，Described screw rod 74 sequentially pass through described first slotted eye 621、First chute 821、Second chute 831 and the second slotted eye 631，Described pad 76 is set in the end of described screw rod 74，Described nut 75 is tightened on the outside of described pad 76 so that described pad 76 is pressed on the outside of described second wing plate 63.In other embodiments, above-mentioned nut shim 76 can use flange surface nut to replace with nut 75.
It addition, in other embodiments, thrust governor motion 7 can also be directly made up of screw rod, nut and pad.
As shown in Fig. 3 and 12, described steering column also includes that back-moving spring 20, one end of described back-moving spring 20 are connected in the fixed plate 61 of described tubular column bracket 6, and the other end is connected on the periphery of described upper pipe 1.As it is shown on figure 3, include two back-moving springs 20 being symmetricly set on pipe 1 both sides.
Under normal circumstances, as shown in figure 12, thrust governor motion 7 is unclamped, by adjusting steering wheel 200 up and down so that the thrust governor motion 7 first slotted eye 621 along tubular column bracket 6 slides up and down, it is achieved that the angular adjustment of steering column.Before steering column crumple, thrust governor motion 7 is in locking state, and tubular column bracket 6, upper pipe holder 8 are clamped condition.During steering column crumple, owing to tubular column bracket 6 maintains static, upper pipe holder 8 moves down, and tubular column bracket 6, upper pipe holder 8 occur sliding friction at clamping face.
During steering column crumple, there is sliding friction between tubular column bracket 6, upper pipe holder 8, by pretightning force (clamping force) the i.e. size of both adjustable force of sliding friction of thrust governor motion.Before steering column crumple, by the size of pretightning force (clamping force) both adjustable stiction of thrust governor motion.Visible, the frictional force between tubular column bracket 6, upper pipe holder 8 is the most relatively easy to control.
As from the foregoing, the steering column of the present invention, frictional force (including stiction and force of sliding friction) between frictional force (including stiction and force of sliding friction) produced by the bottom surface Interference contact of the medial wall of the arc-shaped recess of upper spindle and the arcuate groove of lower spindle, upper pipe, frictional force (including stiction and force of sliding friction) and tubular column bracket and upper pipe holder between lining and down tube three is all easily controlled, by controlling the frictional force size of each energy absorbing portion, it is possible to obtain ideal steering column crumple force curve.As shown in Figure 2, steering column crumple force curve for the present invention that inventor measures, it is appreciated that from Fig. 2, this crumple force curve is compared to Figure 1, it is little (dropping near 3400N near 3850N) that vitality declines degree after crossing crumple peak value b, the vitality making crumple the second half is bigger, it is possible to continued smooth ground energy-absorbing.
In the present embodiment, described tubular bracket 6 forms turnup structure 64 respectively at the marginal position of described fixed plate the 61, first wing plate 62 and the second wing plate 63.Preferably, fixed plate the 61, first wing plate 62 and the second wing plate 63 are three pieces of panel beatings with turnup structure, and tubular column bracket 6 is welded by these three pieces of panel beatings.Turnup structure 64 can improve Integral modes.
Steering column according to the above embodiment of the present invention, when steering column generation crumple, the opposite force (i.e. crumple power) stoping movement is produced by following three energy absorbing portion, one is, frictional force produced by the bottom surface Interference contact of the medial wall of the arc-shaped recess of upper spindle and the arcuate groove of lower spindle；Two are, the frictional force between upper pipe, lining and down tube three；Three are, the frictional force between tubular column bracket and upper pipe holder.When impulsive force is more than the stiction summation at three, crumple power reaches crumple peak value, afterwards, upper pipe slides relative to down tube, upper spindle slides relative to lower mandrel, upper pipe holder slides relative to tubular column bracket, the stiction summation that the vitality of the second half produces when mainly being slided by above three provides, relative to prior art, the steering column of the present invention, after crumple peak value, energy absorbing portion is still effective at three, and during tubing string crumple, the second half has sufficiently large vitality, it is thus possible to have more preferable energy-absorbing effect.And, in the case of material is certain, the adjustment of the frictional force (static friction and dynamic friction) of energy absorbing portion at three can be realized by the associated components size and pretightning force adjusting corresponding energy absorbing portion, flexible design, and the frictional force size of often locating energy absorbing portion is easily controllable, it is easy to be met the steering column crumple force curve of requirement.Further, relative to prior art, the parts such as pin are eliminated, it is possible to simplify the structure of steering column.
Additionally, as shown in figure 12, one embodiment of the invention additionally provides a kind of automobile steering system, it include above-mentioned steering column 100, the steering wheel 200 being connected to steering column 100 upper end, be connected to that the jackshaft 400 that the power steering apparatus 300 of steering column lower end is connected with power steering apparatus 300 universal joint is connected with jackshaft 400 turn to machine (not indicating in figure) and with the drag link (not indicating in figure) turning to machine to be connected.
Driver acts on the moment on steering wheel 200 and passes through steering column 100, jackshaft 400, turns to the parts such as machine, drag link to be converted into the motion of wheel, it is achieved the purpose turned to.Power steering apparatus 300 provides power-assisted when turning to so that driver can rotate steering wheel 200 easily, it is achieved laborsaving.
Certainly, steering column 100 being also equipped with cubicle switch, ignition lock, protecting casing of steering wheel, wire harness grafting first-class opponent part, it is routine techniques, and little with technical key point relation, these parts do not describe in detail.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (10)
1. a steering column, it is characterised in that include pipe, down tube, lining, upper spindle, lower spindle,
Tubular column bracket and thrust governor motion, wherein,
Being provided with the upper pipe holder being pressed on outside tubular column bracket on described upper pipe periphery, described thrust regulates
Mechanism is for regulating the described tubular column bracket thrust to described upper pipe holder；
Described down tube extends partially in described upper pipe, and described bushing press-mounting is managed between down tube on described；
Described upper spindle is hollow axle, and inserts in described upper pipe and down tube；Described lower spindle includes axis body portion
Point, described axis body portion perimeter is provided with a plurality of arcuate groove axially extended, described upper spindle have to
A few multi-leaf-shaped shaft part, described multi-leaf-shaped shaft part includes recessed with multiple arcs of described arcuate groove respective amount
Fall into, the medial wall of described arc-shaped recess and the bottom surface Interference contact of described arcuate groove.
Steering column the most according to claim 1, it is characterised in that have on the bottom surface of described arcuate groove
Having primary importance and the second position, the medial wall of described arc-shaped recess is in described primary importance and the second position
The form contacted with point cantact or face with the bottom surface of described arcuate groove forms Interference contact.
Steering column the most according to claim 2, it is characterised in that described primary importance and second
Put the extreme lower position about described arcuate groove symmetrical.
Steering column the most according to claim 3, it is characterised in that described arcuate groove is circular arc,
Described arc-shaped recess, in " W " shape, the medial wall of the arc-shaped recess of described " W " shape is formed with two symmetries
Arch, described primary importance contacts with said two arch on the bottom surface that the second position is described arcuate groove
Two positions.
5. according to the steering column described in claim 1-4 any one, it is characterised in that described a plurality of arc
Shape groove is equidistantly arranged along the peripheral direction of described axis body part, and the plurality of arc-shaped recess is along described multi-leaf-shaped
The peripheral direction of shaft part is equidistantly arranged.
Steering column the most according to claim 1, it is characterised in that described tubular column bracket includes connecting
To instrument panel tube beam fixed plate, be connected to the first wing plate of described fixed plate side and be connected to described fixing
Second wing plate of plate opposite side；Described upper pipe holder includes top board, is connected to the first side of described top board side
Plate and be connected to the second side plate of described top board opposite side, described first side plate and the second side plate are fixed on described
On the periphery of upper pipe, described first wing plate and the second wing plate are pressed on described first side plate and the second side plate respectively
On.
Steering column the most according to claim 6, it is characterised in that described first wing plate and second wing
It is respectively formed with the first slotted eye and the second slotted eye on plate, described first side plate and the second side plate are respectively formed with
First chute and the second chute；Described thrust governor motion include handle, fixing cam, movable cam,
Screw rod, nut and pad, described handle is fixed on one end of described screw rod, and described fixing cam sleeve is located at institute
Stating on screw rod and be fixed on the inner side of described handle, described movable cam is placed in described fixing cam and described the
Between one wing plate, the side that described fixing cam deviates from described handle is provided with the first tooth, described movable cam
The second tooth mated with described first tooth arranged near the side of described fixing cam, described movable cam is carried on the back
The rotary stopper block inserted in described first slotted eye it is provided with from the side of described fixing cam, described screw rod
Sequentially passing through described first slotted eye, the first chute, the second chute and the second slotted eye, described pad is set in institute
State the end of screw rod, described nut in the outside of described pad so that described pad is pressed on described
The outside of two wing plates.
Steering column the most according to claim 6, it is characterised in that described tubular bracket is described solid
The marginal position determining plate, the first wing plate and the second wing plate forms turnup structure respectively.
Steering column the most according to claim 6, it is characterised in that described steering column also includes multiple
Position spring, one end of described back-moving spring is connected in the fixed plate of described tubular column bracket, and the other end is connected to
On the periphery of described upper pipe.
10. an automobile steering system, it is characterised in that include turning described in claim 1-9 any one
To tubing string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194407.1A CN105835940B (en) | 2016-03-31 | 2016-03-31 | Steering column and automobile steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194407.1A CN105835940B (en) | 2016-03-31 | 2016-03-31 | Steering column and automobile steering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105835940A true CN105835940A (en) | 2016-08-10 |
| CN105835940B CN105835940B (en) | 2019-02-19 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610194407.1A Active CN105835940B (en) | 2016-03-31 | 2016-03-31 | Steering column and automobile steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105835940B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407882A (en) * | 2018-03-06 | 2018-08-17 | 北京长安汽车工程技术研究有限责任公司 | A kind of collapsible steering column and a kind of automobile |
| CN108556903A (en) * | 2018-01-02 | 2018-09-21 | 北京汽车股份有限公司 | Steering column assembly for vehicle and the vehicle with it |
| CN111491849A (en) * | 2017-12-06 | 2020-08-04 | 蒂森克虏伯普利斯坦股份公司 | Main shaft and steering column assembly with main shaft |
| CN112298333A (en) * | 2019-07-30 | 2021-02-02 | 株式会社万都 | Telescopic adjusting mechanism, steering column and vehicle |
| CN112407027A (en) * | 2019-08-22 | 2021-02-26 | 株式会社万都 | Two-way adjusting pipe column and vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4572022A (en) * | 1981-07-03 | 1986-02-25 | Etablissement Supervis | Steering column for a motor vehicle steering mechanism and method of producing the column |
| CN1223212A (en) * | 1997-11-12 | 1999-07-21 | 苏珀维斯企业公司 | Steering shaft for steering devices of motor vehicles |
| US7784830B2 (en) * | 2003-10-23 | 2010-08-31 | Chrysler Group Llc | Axially adjustable steering column assembly with flexible bearing sleeve |
| CN102963414A (en) * | 2012-12-03 | 2013-03-13 | 四川绵阳三力股份有限公司 | Steering column of automobile |
| CN104002854A (en) * | 2014-06-16 | 2014-08-27 | 奇瑞汽车股份有限公司 | Energy absorption automotive steering column assembly |
| CN203920878U (en) * | 2014-06-08 | 2014-11-05 | 武汉捷隆汽车电动转向系统有限公司 | A kind of adjustable energy absorbing vehicle steering column of four-way with Double-linkage lockable mechanism |
| CN105443563A (en) * | 2008-10-01 | 2016-03-30 | 蒂森克虏伯普利斯坦有限公司 | Sliding sleeve |
-
2016
- 2016-03-31 CN CN201610194407.1A patent/CN105835940B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4572022A (en) * | 1981-07-03 | 1986-02-25 | Etablissement Supervis | Steering column for a motor vehicle steering mechanism and method of producing the column |
| CN1223212A (en) * | 1997-11-12 | 1999-07-21 | 苏珀维斯企业公司 | Steering shaft for steering devices of motor vehicles |
| US6149526A (en) * | 1997-11-12 | 2000-11-21 | Etablissement Supervis | Variable length steering shaft for steering mechanisms of motor vehicles |
| US7784830B2 (en) * | 2003-10-23 | 2010-08-31 | Chrysler Group Llc | Axially adjustable steering column assembly with flexible bearing sleeve |
| CN105443563A (en) * | 2008-10-01 | 2016-03-30 | 蒂森克虏伯普利斯坦有限公司 | Sliding sleeve |
| CN102963414A (en) * | 2012-12-03 | 2013-03-13 | 四川绵阳三力股份有限公司 | Steering column of automobile |
| CN203920878U (en) * | 2014-06-08 | 2014-11-05 | 武汉捷隆汽车电动转向系统有限公司 | A kind of adjustable energy absorbing vehicle steering column of four-way with Double-linkage lockable mechanism |
| CN104002854A (en) * | 2014-06-16 | 2014-08-27 | 奇瑞汽车股份有限公司 | Energy absorption automotive steering column assembly |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111491849A (en) * | 2017-12-06 | 2020-08-04 | 蒂森克虏伯普利斯坦股份公司 | Main shaft and steering column assembly with main shaft |
| CN108556903A (en) * | 2018-01-02 | 2018-09-21 | 北京汽车股份有限公司 | Steering column assembly for vehicle and the vehicle with it |
| CN108407882A (en) * | 2018-03-06 | 2018-08-17 | 北京长安汽车工程技术研究有限责任公司 | A kind of collapsible steering column and a kind of automobile |
| CN112298333A (en) * | 2019-07-30 | 2021-02-02 | 株式会社万都 | Telescopic adjusting mechanism, steering column and vehicle |
| CN112298333B (en) * | 2019-07-30 | 2024-04-12 | 汉拿万都株式会社 | Telescopic adjusting mechanism, steering column and vehicle |
| CN112407027A (en) * | 2019-08-22 | 2021-02-26 | 株式会社万都 | Two-way adjusting pipe column and vehicle |
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| Publication number | Publication date |
|---|---|
| CN105835940B (en) | 2019-02-19 |
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Effective date of registration: 20201230 Address after: 23 / F, Chengyue building, 448-458 Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong 510000 Patentee after: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. Patentee after: Guangzhou Automobile Passenger Car Co.,Ltd. Address before: 510030 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. |
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Address after: 23rd Floor, Chengyue Building, 448-458 Dongfeng Middle Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee after: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. Country or region after: China Address before: 23 / F, Chengyue building, 448-458 Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong 510000 Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. Country or region before: China Patentee before: Guangzhou Automobile Passenger Car Co.,Ltd. |
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