CN110155152A - Crumple energy-absorbing anti-dropout steering column - Google Patents
Crumple energy-absorbing anti-dropout steering column Download PDFInfo
- Publication number
- CN110155152A CN110155152A CN201910505658.0A CN201910505658A CN110155152A CN 110155152 A CN110155152 A CN 110155152A CN 201910505658 A CN201910505658 A CN 201910505658A CN 110155152 A CN110155152 A CN 110155152A
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- Prior art keywords
- energy
- steering column
- absorbing
- mounting bracket
- steel band
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 230000007704 transition Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000000418 atomic force spectrum Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
Abstract
The invention discloses a kind of crumple energy-absorbing anti-dropout steering columns, including steering column ontology (1), retaining mechanism (2), mounting bracket (3) and energy-absorbing steel band (4), wherein, retaining mechanism (2) is fixedly connected with steering column ontology (1)；Mounting bracket (3) is fixedly connected with retaining mechanism (2)；Energy-absorbing steel band (4) is fixed on the instrument beam of vehicle；Sliding slot (43) are provided on energy-absorbing steel band (4), fastening screw (5) are provided in sliding slot (43), energy-absorbing steel band (4) is connected by fastening screw (5) with mounting bracket (3), mounting bracket (3) is configured as moving downward when steering column ontology (1) is by downward impact relative to energy-absorbing steel band (4), and fastening screw (5) is driven to move along the chute (43).The crumple energy-absorbing anti-dropout steering column crumple peak force is controllable, and steering column retentivity is stablized when crumple, and steering column will not fall off downwards in collision process.
Description
Technical field
The present invention relates to technical field of vehicle, in particular to a kind of crumple energy-absorbing anti-dropout steering column.
Background technique
With the fast development of automotive engineering, security legislation is higher and higher to vehicle safety requirement, has adjustable angle
Collapsible steering column has been popularized on passenger car.When sharp impacts occur for automobile, driver is often because strong
It fails and leans forward, thus collide with steering wheel, in order to reduce human body by the impact force of steering column, some vapour
Vehicle often steering column be designed to hit when because by the external world squeeze due to occur crumple fold, so as to disperse it is some because
Hit the impact force that human body is transmitted to by steering column.
In the related technology, a kind of crumple energy-absorbing steering tube column is provided, using upper and lower column tube riveting point interference fit, installation branch
Frame pulls block injection structure, and such structure is very high to the cooperation required precision of upper and lower column tube, and riveting process is extremely difficult to require, and leads
Cause the upper and lower column tube crumple power of steering not easy to control；Steering column pulls block and mounting bracket using being molded, and injection structure pulls
Power influence factor is more, and such as shot, injection temperature is molded pore size etc., thus pulling-out force is not easy to control, and the margin of tolerance is big,
Therefore traditional structure tubing string crumple peak force and retentivity are not easy to control.Without anti-dropout knot after traditional structure steering column crumple
Structure, steering column falls down during crumple, and tubing string cannot stablize energy-absorbing.
In the implementation of the present invention, inventor has found the relevant technologies the prior art has at least the following problems: steering column crumple
Peak force is big, and steering column retentivity fluctuation range is big, and steering column falls down in collision process.
Summary of the invention
The embodiment of the invention provides a kind of crumple energy-absorbing anti-dropout steering columns, can make steering column crumple energy-absorbing power
Steering column falls off when stablizing, and avoiding collision.Specific technical solution is as follows:
A kind of crumple energy-absorbing anti-dropout steering column, including steering column ontology, retaining mechanism, mounting bracket and energy-absorbing steel
Band, wherein the retaining mechanism is fixedly connected with the steering column ontology；The mounting bracket is fixed with the retaining mechanism
Connection；The energy-absorbing steel band is fixed on the instrument beam of vehicle；It is provided with sliding slot on the energy-absorbing steel band, is set in the sliding slot
It is equipped with fastening screw, the energy-absorbing steel band is connected by the fastening screw with the mounting bracket, and the mounting bracket is matched
It is set to and is moved downward when the steering column ontology is by downward impact relative to the energy-absorbing steel band, and drive the fastening
Screw is along the runner movement；.
Selectively, the mounting bracket include top plate, two side plates and two flanks being respectively connected with the side plate,
The connecting plate of top plate and retaining mechanism is connected, fastening screw peace corresponding with the fastening screw is provided on each flank
Fill hole.
Selectively, the energy-absorbing steel band is arranged on the flank, including fixed part and sliding part, and the sliding slot setting exists
On the sliding part；It is provided with slot on the fixed part, fixing bolt, the fixation are provided in the slot
Bolt is fixedly connected with the instrument beam.
Selectively, downward arcuation protrusion is additionally provided on the fixed part.
Selectively, the energy-absorbing steel band further includes the lower board unit being separately positioned under the flank, the fixed part and
It is connected between lower plate with the interconnecting piece of back bending, the opening of upward opening is provided on the flank, the fixing bolt passes through institute
State slot, opening and lower board unit.
Selectively, the width of the sliding slot gradually becomes smaller along the mounting bracket direction of motion.
Selectively, the retaining mechanism and the connecting plate of the mounting bracket are bolted to connection.
Selectively, the steering column ontology includes upper column tube, and the upper steering shaft inside the upper column tube is arranged in, with
The connected lower steering shaft of the upper steering shaft is set in the lower column tube being connected on the outside of the lower steering shaft and with the upper column tube,
The retaining mechanism is fixedly connected with the upper column tube.
Selectively, the upper column tube and lower prop tube transitions cooperation, the upper steering shaft and the lower steering between centers
Gap cooperation.
Selectively, the energy-absorbing steel band and the mounting bracket are punch forming.
The beneficial effect of the embodiment of the present application includes at least:
Energy-absorbing steel band is fixed on instrument beam by crumple energy-absorbing anti-dropout steering column provided by the embodiments of the present application, is touched
When hitting generation, retaining mechanism drives mounting bracket and steering column ontology associated movement, and with energy-absorbing steel band phase occurs for mounting bracket
To movement, but mounting bracket is connected by fastening screw with energy-absorbing steel band sliding slot, therefore steering column still will not fall off, steering tube
Column can stablize energy-absorbing.
Downward arcuation protrusion is provided on energy-absorbing steel band to drop so that contacting between energy-absorbing steel band and mounting bracket for line
Low frictional force between the two, at the same arcuation protrusion can be provided between energy-absorbing steel band fixed part and mounting bracket it is certain between
Gap makes to be easier that relative motion occurs between mounting bracket and energy-absorbing steel band, thus crumple energy-absorbing.
Transition fit is used between the upper tubing string and lower tubular column of steering column, between using between upper steering shaft and lower steering shaft
Gap cooperation, mounting process is simple, influences on the crumple of steering column smaller.
The energy-absorbing steel band and mounting bracket of steering column are punching structure, and size is easy to control, therefore can pass through control
The size adjusting energy-absorbing power of energy-absorbing steel band processed and mounting bracket, thus matched well with air bag system, steering wheel system,
Realize the control to steering column crumple peak force and vitality, being finally reached reduces injury of the vehicle to driver when collision
Purpose.
Crumple energy-absorbing anti-dropout steering column installing component provided by the embodiments of the present application is few, and structure process is simple, in reality
While turning now to tubing string crumple anti-drop function, manufacturing cost is reduced.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of schematic perspective view of crumple energy-absorbing anti-dropout steering column provided by the embodiments of the present application；
Fig. 2 is a kind of positive structure diagram of crumple energy-absorbing anti-dropout steering column provided by the embodiments of the present application；
Fig. 3 is a kind of side structure schematic view of crumple energy-absorbing anti-dropout steering column provided by the embodiments of the present application；
Fig. 4 is a kind of partial structurtes enlarged drawing of crumple energy-absorbing anti-dropout steering column provided by the embodiments of the present application；
Fig. 5 is a kind of facing structure of the mounting bracket of crumple energy-absorbing anti-dropout steering column provided by the embodiments of the present application
Schematic diagram；
Fig. 6 is a kind of facing structure of the energy-absorbing steel band of crumple energy-absorbing anti-dropout steering column provided by the embodiments of the present application
Schematic diagram；
Fig. 7 is a kind of cutting structural schematic diagram of crumple energy-absorbing anti-dropout steering column provided by the embodiments of the present application；
Fig. 8 is a kind of cutting of the steering column ontology of crumple energy-absorbing anti-dropout steering column provided by the embodiments of the present application
Structural schematic diagram；
Fig. 9 is a kind of conquassation of crumple energy-absorbing anti-dropout steering column and other collapsing structures provided by the embodiments of the present application
Force curve comparison diagram.
Appended drawing reference respectively indicates:
1, steering column ontology；11, upper column tube；12, upper steering shaft；13, lower steering shaft；14, lower column tube；2, machine is locked
Structure；3, mounting bracket；31, top plate；32, side plate；33, flank；34, fastening screw mounting hole；35, it is open；36, connecting plate；4,
Energy-absorbing steel band；41, fixed part；42, sliding part；43, sliding slot；, 44, slot；45, lower board unit；46, interconnecting piece；5, it fastens
Screw；6, fixing bolt.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
General plotting based on the application, the embodiment of the present application provide a kind of crumple energy-absorbing anti-dropout steering column, packet
Include steering column ontology, retaining mechanism, mounting bracket and energy-absorbing steel band, wherein retaining mechanism and the fixed company of steering column ontology
It connects；Mounting bracket is fixedly connected with retaining mechanism, and energy-absorbing steel band is fixed on the instrument beam of vehicle, is provided on energy-absorbing steel band
Sliding slot is provided with fastening screw in sliding slot, and energy-absorbing steel band is connected by fastening screw with mounting bracket, and mounting bracket is configured as
It is moved downward when steering column ontology is by downward impact relative to energy-absorbing steel band, and fastening screw is driven to move along the chute.
The crumple energy-absorbing anti-dropout steering column, retaining mechanism are fixedly connected with steering column ontology, mounting bracket and lock
Tight mechanism is fixedly connected.When a vehicle is in a collision, the reaction force that safety airbag explosion generates is transferred to by steering wheel to be turned
To tubular column main body, power is transferred to mounting bracket by retaining mechanism by steering column ontology.Steering column ontology is by due to gas
When capsule or human impact's steering wheel bring are impacted downwards, retaining mechanism drive mounting bracket with steering column ontology downwardly together
Movement.Mounting bracket is connected by fastening screw with energy-absorbing steel band, and fastening screw passes through the sliding slot being arranged on energy-absorbing steel band.Turn
When driving mounting bracket to move generation crumple to tubular column main body, mounting bracket drives fastening screw along runner movement, energy-absorbing steel
Band realizes energy-absorbing function.
Since energy-absorbing steel band is fixed on instrument beam, mounting bracket is connected by fastening screw with energy-absorbing steel band, therefore
When relative motion occurs for mounting bracket and energy-absorbing steel band, the fastening screw in mounting bracket is fastened in the sliding slot of energy-absorbing steel band
Sliding, therefore steering column ontology will not fall off, so that steering column can realize stable energy-absorbing.
In crumple energy-absorbing anti-dropout steering column provided by the embodiments of the present application, referring to Fig. 1, which includes turning
To tubular column main body 1, retaining mechanism 2, mounting bracket 3 and energy-absorbing steel band 4.
Retaining mechanism 2 is fixedly connected with steering column ontology 1.For example, with reference to Fig. 1, retaining mechanism 2 can be set in steering tube
On column ontology 1.
Mounting bracket 3 is fixedly connected with retaining mechanism 2.For example, with reference to Fig. 1, mounting bracket 3 can pass through with retaining mechanism 2
Two bolts for being separately positioned on 2 two sides of retaining mechanism are fixedly connected.
Energy-absorbing steel band 4 is fixed on instrument beam.For example, energy-absorbing steel band 4 can be fixed on the instrument of vehicle by a bolt
On table crossbeam.
Certainly, in the application, steering column ontology 1 and retaining mechanism 2, retaining mechanism 2 and mounting bracket 3, mounting bracket 3
Fixed form between energy-absorbing steel band 4 is not limited in being bolted.For example, in other realizations of the embodiment of the present application
Both bonding also can be used in mode, between retaining mechanism 2 and mounting bracket 3 plus the mode of bolt cooperates fixation, thus enhance
Between fixing intensity, avoid the crumple energy-absorbing that steering column is influenced because of solid failure.
Referring to Fig. 1 and 2, it is provided with sliding slot 43 on energy-absorbing steel band 4, fastening screw 5, energy-absorbing steel band 4 are provided in sliding slot 43
It is connected by fastening screw 5 with mounting bracket 3.Mounting bracket 3 is when steering column ontology 1 is by downward impact relative to energy-absorbing
Steel band 4 moves downward, and drives 43 movement along the chute of fastening screw 5.
For example, energy-absorbing steel band may be configured as two in a kind of implementation of the embodiment of the present application, it is separately fixed at peace
The two sides of bracket are filled, may be provided with a sliding slot on each energy-absorbing steel band.
Certainly, in the application, it is not limited in that a sliding slot is arranged on each energy-absorbing steel band.In the embodiment of the present application
Two sliding slots can be set side by side in other implementations, on energy-absorbing steel band, correspondingly, settable in every sliding slot and installation branch
The connected fastening screw of frame.
Referring to Fig. 1,2 and 5, mounting bracket 3 may include 31, two side plates 32 of top plate and the side that is respectively connected with two side plates
The wing 33, and the connecting plate 36 of top plate 31 and retaining mechanism 2 is connected, it is right with fastening screw 5 to may be provided on each flank 33
The fastening screw mounting hole 34 answered.
For example, referring to Fig. 1,2 and 5, connecting plate 36 may include the second top in a kind of implementation of the embodiment of the present application
Plate and the second side plate that the second top plate two sides are set, thus the cutting in the direction of motion perpendicular to mounting bracket 3 of connecting plate 36
Face shape can be " door " font.Second side plate may be provided at 2 two sides of retaining mechanism, is fixedly connected by bolt with retaining mechanism 2.
Second top plate can be welded with top plate 31.Movement side of other parts of the mounting bracket 3 in addition to connecting plate 36 perpendicular to mounting bracket 3
To section can be " several " font.Side plate 32 can be connected with top plate 31 in certain tilt angle.The plate of flank 33 and top plate 31
It face can be parallel.The junction of side plate 32 and top plate 31 and flank 33 may be provided with chamfering, molding easy to process.In the present embodiment
In, it can be used as retaining mechanism for adjusting the angle adjustment device of angle of steering tubular column in vehicle, i.e. retaining mechanism can also have
Adjust the function of angle of steering tubular column.
Certainly, in the application, the shape setting of mounting bracket is not limited to described above.In the embodiment of the present application
In other implementations, mounting bracket may include a plate and two pieces of square baffles.Square baffle can be bolted
In retaining mechanism two sides.Square baffle and the plate of mounting bracket are attached using bolt, thus realize retaining mechanism and
Mounting bracket is fixedly connected.
Meanwhile in the application, the setting of energy-absorbing steel band is not limited in being arranged on flank.In its of the embodiment of the present application
In his implementation, energy-absorbing steel band may also set up on the top plate of mounting bracket, correspondingly, can also set on the top plate of mounting bracket
It is equipped with fastening screw mounting hole.
Referring to Fig. 6 and 7, energy-absorbing steel band 4 be may be provided on flank 33, including connected fixed part 41 and sliding part 42.It is sliding
Slot 43 may be provided on sliding part 42.It may be provided with slot 44 on fixed part 41, may be provided with fixation in slot 44
Bolt 6.Fixing bolt 6 can be fixedly connected with instrument beam.
For example, referring to Fig. 6 and 7,41 surface shape of fixed part can be square in a kind of implementation of the embodiment of the present application
Shape, and be long side perpendicular to the side of the direction of motion of mounting bracket 3.The width of sliding part 42 can be along the movement side of mounting bracket 3
To being gradually reduced.The maximum width of sliding part 42 is smaller than the width of fixed part 41.Arc-shaped transition company can be used in the two junction
It connects.
Certainly, in the application, the shape of sliding part and fixed part is not limited to described above.In the embodiment of the present application
Other implementations in, sliding part may be configured as rectangle identical with fixed part shape.
Meanwhile in the application, the shape that the hole of fixing bolt is arranged is not limited to slot.In the embodiment of the present application
In other implementations, the shape that the hole of fixing bolt is arranged may also be configured to round or square.
Further, in the application, the quantity of slot, which is also not limited on each energy-absorbing steel band, is arranged one.At this
In other implementations for applying for embodiment, it can be set side by side in the direction of motion perpendicular to mounting bracket on each energy-absorbing steel band
Two slots.
Referring to Fig. 3,4 and 7, downward arcuation protrusion is also provided on fixed part 41.
For example, in a kind of implementation of the embodiment of the present application, it, can be in the interposition of fixed part 41 referring to Fig. 3,4 and 7
It installs and is equipped with slot 44.44 two sides of slot may be provided with downwards in the ear of arcuation protrusion.Ear and slot
Gap is provided between 44.Ear is set as the close fixed part one side edge part in gap, and protrudes in arcuation downwards, thus
Contacted between energy-absorbing steel band 4 and mounting bracket 3 for line, at the same provide between energy-absorbing steel band 4 and mounting bracket 3 it is certain between
Gap makes frictional force between the two be less than the impulse force from steering column that mounting bracket 3 is subject to, to be prone to opposite transport
It is dynamic, realize crumple energy-absorbing.
Certainly, in the application, the set-up mode of arcuation protrusion is not limited to described above.In the embodiment of the present application
In other implementations, it can also set the hole wall of slot to being downwards in arcuation protrusion.
In the application, for rectangle hole wall be in downwards arcuation protrusion direction with no restriction.The direction of arcuation protrusion can
Perpendicular to the direction of motion of mounting bracket, the direction of motion of mounting bracket can also be parallel to.
On the set-up mode of frictional force is not limited in meanwhile in the application, between reduction energy-absorbing steel band and mounting bracket
Described in face.In other implementations of the embodiment of the present application, semicolumn may be provided between fixed part and mounting bracket.
The top surface of semicolumn can weld in the lower surface of fixed part.The curved surface of semicolumn can be in contact with mounting bracket.At this point, can be half
Slot is arranged in the top of cylinder, may be provided with the fixing bolt being fixedly connected with the instrument beam of vehicle in slot.
Referring to Fig. 1,4 and 7, energy-absorbing steel band 4 may also include the lower board unit 45 being arranged under flank 33.Fixed part 41 and lower plate
The interconnecting piece 46 that back bending can be used between portion 45 is connected.It may be provided with the opening 35 of upward opening on flank 33.Fixing bolt 6 can
Across 1 slot 44, opening 35 and lower board unit 45.
For example, energy-absorbing steel band 4 may be provided at 33 top of flank in a kind of implementation of the embodiment of the present application, including
The biggish fixed part 41 of width and the lesser sliding part 42 of width.Lower board unit 45 may be provided at the lower section of flank 33, shape and solid
It is identical to determine 41 shape of portion.The cross-sectional width of interconnecting piece 46 can be much smaller than the width of fixed part 41 and lower board unit 45.Fixed part 41 with
Certain interval may be present between flank 33.Setting can be bonded between lower board unit 45 and flank 33.Fixing bolt 6 may pass through fixed part
41 and lower board unit 45, and the opening 35 by being arranged on flank 33.
Certainly, in the application, the shape of energy-absorbing steel band is not limited in described above.In its of the embodiment of the present application
In his implementation, energy-absorbing steel band may be configured as the rectangle bent downward.Rectangular upper portion quartile is above flank and is provided with cunning
Slot, lower part, which is set up separately, sets below flank.Fixing bolt may pass through two parts up and down of energy-absorbing steel band.Further, energy-absorbing steel band
Lower part may also be configured to triangle, and gable top may be provided with through the bolt being connected with upper plate that is open, thus reduces and inhale
The material loss of energy steel band.
Meanwhile in the application, the quantity of opening and position are with no restriction.For example, in a kind of realization of the embodiment of the present application
In mode, referring to Fig. 5, an end margin of flank 33 may be provided with " n " shape opening.Opening can be by solid with instrument beam
Surely the bolt connected.When mounting bracket moves, opening is disengaged with bolt.In other implementations of the embodiment of the present application,
More openings can be set, to increase the bolt quantity that mounting bracket is connect with instrument beam.
Furthermore in the application, the quantity and set-up mode of fixing bolt are not limited to described above.In the application reality
It applies in other implementations of example, fixing bolt can be divided into the upper fixing bolt for being set to column tube position and be set to lower column tube
The lower fixing bolt of position.Upper fixing bolt and lower fixing bolt can be fixed together with the welded nut on instrument beam.
Referring to fig. 2 with 6, the width of sliding slot 43 can gradually become smaller along the direction of motion of mounting bracket 3.
For example, the width of sliding slot 43 is slow after can strongly reducing first in a kind of implementation of the embodiment of the present application
Reduce, until the both sides of sliding slot 43 are parallel.The width of 43 initial position of sliding slot may be slightly larger than the diameter of fastening screw.
Certainly, in the application, the setting of sliding slot shape is not limited in described above.In its of the embodiment of the present application
In his implementation, the shape of sliding slot may be arranged as uniformly reducing, until both ends pool a bit.
Energy-absorbing steel band length is related to crumple distance, and crumple distance is bigger, and the length of sliding slot is longer, the length of energy-absorbing steel band
Also longer.The width of sliding slot is set as gradually becoming smaller along the direction of motion of mounting bracket, thus with the fortune of mounting bracket
Dynamic, fastening screw gradually supports sliding slot greatly, to provide stable extrusion friction.It, can be under identical explosion momentum effect
Shorten crumple distance, reduces energy-absorbing steel band length.
Referring to Fig. 1, the connecting plate 36 of retaining mechanism 2 and mounting bracket 3 can be bolted to connection.
For example, in a kind of implementation of the embodiment of the present application, referring to Fig. 1, for adjusting steering column angle in vehicle
The angle adjustment device of degree can be used as retaining mechanism, i.e. retaining mechanism can also have the function of adjusting angle of steering tubular column.Lock
Tight mechanism 2 may include the semi-circular component for being set in column tube, is connected with semi-circular component and is arranged in dynamic below upper column tube
Power component.The connecting plate 36 of mounting bracket 3 can be bolted on dynamic component two sides.Connecting plate 36 may be provided at steering column
Above pipe.
Certainly, in the application, the set-up mode of retaining mechanism is not limited in described above.In the embodiment of the present application
Other implementations in, retaining mechanism may be configured as the direction of motion of right angle setting bracket section be fall " recessed " shape it is hollow
Component.Depressed section below retaining mechanism can be bonded with steering column.The upper plate opposite with depressed section of retaining mechanism
It can be welded and fixed with the top plate of mounting bracket.Retaining mechanism can be bolted with steering column fitting part.Retaining mechanism
It can be moved with steering column and bolt will not be thrust.
In other implementations of the embodiment of the present application, retaining mechanism can also further will fall the hollow structure of " recessed " shape
The upper plate of part is set as the supporting plate to turn up to two sides.Supporting plate can be bolted to connection with mounting bracket.
Referring to Fig. 8, steering column ontology 1 may include upper column tube 11, and the upper steering shaft 12 inside upper column tube 11 is arranged in, with
The connected lower steering shaft 13 of upper steering shaft 12 is set in the lower lower column tube 14 steering shaft 13 outside and be connected with upper column tube 11.Lock
Tight mechanism 2 can be fixedly connected with upper column tube 11.
For example, upper steering shaft 12 can be partially arranged in outside upper column tube 11 in a kind of implementation of the embodiment of the present application
Side, the part beyond upper column tube 11 can be connected with steering wheel.Upper column tube 11 may be configured as ladder-like.Lower steering shaft 13 may be provided at
Inside upper steering shaft 12.Lower column tube 14 may be provided inside column tube 11.It can be interference fit between steering shaft and column tube.
Referring to Fig. 8, transition fit is can be used in upper column tube 11 and lower column tube 14, and upper steering shaft 12 and lower steering shaft 13 can be used
Clearance fit.
Certainly, in the application, the fit system between column tube and steering shaft is not limited in described above.In this Shen
Please be in other implementations of embodiment, riveting point interference fit can be used in upper column tube and lower prop.
Transition fit is used between column tube, is gap-matched between steering shaft, and sliding force when crumple between column tube can
To control within 100N, the crumple of steering column influence can be ignored, to keep crumple peak force easily controllable.
In a kind of implementation of the embodiment of the present application, energy-absorbing steel band and mounting bracket can be punch forming.
Certainly, in the application, the molding mode of energy-absorbing steel band and mounting bracket is not limited in punch forming, in the application
It, can also be using the molding mode of the easily controllable scantlings such as welding, 3D printing in other implementations of embodiment.
Steering column crumple peak force is related with the size of size and mounting bracket of vitality and energy-absorbing steel band.Due to
Energy-absorbing steel band and mounting bracket are all made of punch forming, and size is easy to control, therefore can be very good the peak value of control steering column
Power and vitality.
Referring to Fig. 9, from static crushing test it is found that the static conquassation peak force and retentivity stability of the application are obviously excellent
In traditional collapsing structure.
The foregoing is merely presently preferred embodiments of the present invention, the protection scope being not intended to limit the invention, all in this hair
Within bright spirit and principle, any modification, equivalent replacement, improvement and so on should be included in protection scope of the present invention
Within.
Claims (10)
1. a kind of crumple energy-absorbing anti-dropout steering column, which is characterized in that including steering column ontology (1), retaining mechanism (2),
Mounting bracket (3) and energy-absorbing steel band (4), wherein
The retaining mechanism (2) is fixedly connected with the steering column ontology (1)；
The mounting bracket (3) is fixedly connected with the retaining mechanism (2)；
The energy-absorbing steel band (4) is fixed on the instrument beam of vehicle；
It is provided with sliding slot (43) on the energy-absorbing steel band (4), is provided with fastening screw (5), the energy-absorbing in the sliding slot (43)
Steel band (4) is connected by the fastening screw (5) with the mounting bracket (3), and the mounting bracket (3) is configured as described
It is moved downward when steering column ontology (1) is by downward impact relative to the energy-absorbing steel band (4), and drives the fastening screw
(5) it is moved along the sliding slot (43).
2. crumple energy-absorbing anti-dropout steering column according to claim 1, which is characterized in that mounting bracket (3) packet
It includes top plate (31), two side plates (32) and two flanks (33) being respectively connected with described two side plates, connect the top plate
(31) and the connecting plate (36) of retaining mechanism (2) it, is provided on each flank (33) corresponding with the fastening screw (5)
Fastening screw mounting hole (34).
3. crumple energy-absorbing anti-dropout steering column according to claim 2, which is characterized in that the energy-absorbing steel band (4) sets
It sets on the flank (33), including connected fixed part (41) and sliding part (42), the sliding slot (43) is arranged in the sliding
In portion (42)；It is provided with slot (44) on the fixed part (41), is set in slot (44) slot (414)
It is equipped with fixing bolt (6), the fixing bolt (6) is fixedly connected with the instrument beam.
4. crumple energy-absorbing anti-dropout steering column according to claim 3, which is characterized in that on the fixed part (41) also
It is provided with downward arcuation protrusion.
5. crumple energy-absorbing anti-dropout steering column according to claim 3, which is characterized in that the energy-absorbing steel band (4) is also
Including the lower board unit (45) being arranged under the flank (33), with back bending between the fixed part (41) and the lower board unit (45)
Interconnecting piece (46) be connected, be provided with the opening (35) of upward opening on the flank (33), the fixing bolt (6) passes through institute
State slot (44), opening (35) and the lower board unit (45).
6. crumple energy-absorbing anti-dropout steering column according to claim 1, which is characterized in that the width of the sliding slot (43)
Along the mounting bracket (3), the direction of motion is gradually become smaller.
7. crumple energy-absorbing anti-dropout steering column according to claim 2, which is characterized in that the retaining mechanism (2) and
The connecting plate (36) of the mounting bracket (3) is bolted to connection.
8. crumple energy-absorbing anti-dropout steering column according to claim 1, which is characterized in that the steering column ontology
(1) include upper column tube (11), the upper steering shaft (12) internal in the upper column tube (11) is set, with upper steering shaft (12) phase
Lower steering shaft (13) even is set in the lower column tube being connected on the outside of the lower steering shaft (13) and with the upper column tube (11)
(14), the retaining mechanism (2) is fixedly connected with the upper column tube (11).
9. crumple energy-absorbing anti-dropout steering column according to claim 8, which is characterized in that the upper column tube (11) and institute
State lower column tube (14) transition fit, the upper steering shaft (12) and the lower steering shaft (13) clearance fit.
10. crumple energy-absorbing anti-dropout steering column according to claim 1, which is characterized in that the energy-absorbing steel band (4) and
The mounting bracket (3) is punch forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910505658.0A CN110155152B (en) | 2019-06-12 | 2019-06-12 | Collapse energy-absorbing anti-drop steering column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910505658.0A CN110155152B (en) | 2019-06-12 | 2019-06-12 | Collapse energy-absorbing anti-drop steering column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110155152A true CN110155152A (en) | 2019-08-23 |
| CN110155152B CN110155152B (en) | 2021-11-30 |
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ID=67628736
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910505658.0A Active CN110155152B (en) | 2019-06-12 | 2019-06-12 | Collapse energy-absorbing anti-drop steering column |
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| Country | Link |
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| CN (1) | CN110155152B (en) |
Cited By (2)
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|---|---|---|---|---|
| CN111645752A (en) * | 2019-11-21 | 2020-09-11 | 摩登汽车有限公司 | Steering column assembly |
| WO2024041693A1 (en) | 2022-08-22 | 2024-02-29 | Schaeffler Technologies AG & Co. KG | Length-adjustable operating unit and steer-by-wire system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022119870A1 (en) | 2022-08-08 | 2024-02-08 | Schaeffler Technologies AG & Co. KG | Energy absorption assembly, automotive safety steering column and kit-of-parts |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110155152B (en) | 2021-11-30 |
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