CN109677483A - The axial interval regulator of electronic four-way adjustable steering pipe column - Google Patents
The axial interval regulator of electronic four-way adjustable steering pipe column Download PDFInfo
- Publication number
- CN109677483A CN109677483A CN201811553598.1A CN201811553598A CN109677483A CN 109677483 A CN109677483 A CN 109677483A CN 201811553598 A CN201811553598 A CN 201811553598A CN 109677483 A CN109677483 A CN 109677483A
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- steering shaft
- bearing
- electronic
- axial
- washer
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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
- B62D1/181—Steering columns yieldable or adjustable, e.g. tiltable with power actuated adjustment, e.g. with position memory
-
- 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
- B62D1/185—Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
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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 axial interval regulators of electronic four-way adjustable steering pipe column, electronic four-way adjustable steering pipe column includes upper tubing string assembly, lower tubular column assembly, first steering shaft, second steering shaft and third steering shaft, first steering shaft is mounted on upper tubing string assembly by first bearing and second bearing, the axial interval regulator includes applying the axial anti-backlash mechanism of load to the first bearing and being sheathed in first steering shaft and match with the second bearing to carry out the axis circlip of axial limiting to the first steering shaft, axial anti-backlash mechanism and second bearing are between first bearing and axis circlip.The axial interval regulator of the electronic four-way adjustable steering pipe column of the present invention, the axial gap between the first steering shaft and upper tubing string assembly can be eliminated, and then steering wheel is evaded and the problem of play up and down has occurred, the reliability for improving electronic four-way adjustable steering pipe column, also improves the comfortableness and security of driving.
Description
Technical field
The invention belongs to wheel steering system technical fields, specifically, the present invention relates to a kind of electronic four-ways to turn
To the axial interval regulator of tubing string.
Background technique
Steering system is a series of devices for changing or keeping vehicle driving or reverse direction, wherein steering column
It is one of significant components of automobile steering system for connecting steering wheel and diverter.In Vehicle Engineering, steering tube
Column can make the position of steering wheel in a certain range up and down, front and back adjusts to adapt to the operating habit of driver.
When need to by steering wheel to driver step down or adjustment direction disk suitable position when, the electronic adjustable steering tube of four-way
Column is to realize to adjust by regulating switch.When as needed adjust steering column, press manually adjust switch being capable of manual actuation
Steering column four-way is adjusted to required location status;Automatic regulating switch is pressed, steering column can be automatically adjusted to preset shape
State (can preset three kinds of location status).
Therefore, in order to realize steering wheel upper and lower and front-rear position adjusting, be easy to implement the tune of steering wheel spatial position
Section, so that driver easily converts different spatial positions, existing electronic four-way adjustable steering pipe column according to different demands
Mainly include upper tubing string assembly, lower tubular column assembly, be rotatably arranged in tubing string assembly and for being connect with steering wheel
First steering shaft, the second steering shaft that axis connection is turned to first, the third steering shaft and upper tube for turning to axis connection with second
The flexible pipe assembly of column assembly rotation connection is connect and for controlling upper tubing string assembly with flexible pipe assembly and upper tubing string assembly
It the angle adjustment device that is swung with the first steering shaft and is connect with lower tubular column assembly and flexible pipe assembly and for controlling
The axial-adjustment unit that flexible pipe assembly and the first steering shaft move along the axial direction, the second steering shaft are rotatable setting
In flexible pipe assembly and the second steering shaft can with flexible pipe assembly synchronize be axially moveable.
It is missed because the processing dimension of the components such as the first steering shaft, lower tubular column assembly, upper tubing string assembly and flexible pipe assembly exists
Difference, leading to the first steering shaft, there are axial gaps in height adjustment, will lead to showing for steering wheel generation or more play
As, and then will affect the comfort of the manipulation sense and driving of driver, it will affect the safety of driving when serious.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention provides a kind of electricity
The axial interval regulator of dynamic four-way adjustable steering pipe column, it is therefore an objective to improve the reliability of electronic four-way adjustable steering pipe column.
To achieve the goals above, the technical scheme adopted by the invention is as follows: between the axial direction of electronic four-way adjustable steering pipe column
Clearance adjustment apparatus, electronic four-way adjustable steering pipe column include that upper tubing string assembly, lower tubular column assembly, the first steering shaft and third turn
To axis, the first steering shaft is mounted on upper tubing string assembly by first bearing and second bearing, the axial interval regulator
Including applying the axial anti-backlash mechanism of load to the first bearing and being sheathed in first steering shaft and with described second
Bearing is matched to carry out the axis circlip of axial limiting to the first steering shaft, and axial anti-backlash mechanism and second bearing are located at the
Between one bearing and axis circlip.
The axial direction anti-backlash mechanism includes mounting bracket, is set in mounting bracket and contacts with the first bearing
The inside of first axis spring and the second axle spring being set in mounting bracket, the upper tubing string assembly has and second
First confined planes of axle spring contact.
The first axis spring and second axle spring are disk spring and first axis spring and the second axis
It is to be arranged symmetrically to spring.
The first axis spring and second axle spring are respectively provided with multiple.
The mounting bracket includes being sheathed in first steering shaft and being located at the first axis spring and described the
Washer and the first clamping ear being set on washer and second between two axle springs are clamped ear, and first axis spring is set
It is placed on the first clamping ear, the second axle spring is set on the second clamping ear.
It is to be uniformly distributed circumferentially on the washer that multiple and all first clamping ears, which are arranged, in the first clamping ear,
It is to be uniformly distributed circumferentially on the washer that multiple and all second clamping ears, which are arranged, in the second clamping ear, each second
Clamping ear is located between two first adjacent clamping ears.
The mounting bracket further includes the first flange and the second flange being set on the washer, the first flange and institute
State the side that the first clamping ear is located at washer, the second flange and the second clamping ear are located at the other side of washer, and described first
Multiple and all first flange are arranged on the washer to be uniformly distributed circumferentially in flange, and the second flange setting is multiple
And all second flange on the washer to be uniformly distributed circumferentially, each second flange is located at adjacent two the
Between one flange.
The third steering shaft is mounted on the lower tubular column assembly by 3rd bearing, the axial gap adjustment dress
Setting further includes the disk circlip for being sheathed in third steering shaft and applying to 3rd bearing load, and disk circlip includes disk sheet
Body, the first connection sheet being set in disk body and the second connection sheet, be set in the first connection sheet and with the third axis
Accept the first flap of touching and the second flap that is set in the second connection sheet, the third steering shaft, which has, allows second flap
The card slot of insertion.
It is circumferentially uniform point that multiple and all first connection sheets, which are arranged, in the disk body in first connection sheet
One end of cloth, the first connection sheet is connect with disk body, and the other end of the first connection sheet is arranged in the first flap, is owned
First flap is distributed in the surrounding of the third steering shaft.
It is circumferentially uniform point that multiple and all second connection sheets, which are arranged, in the disk body in second connection sheet
One end of cloth, the second connection sheet is connect with disk body, and the other end of the second connection sheet is arranged in the second flap, is owned
Second flap is distributed in the surrounding of the third steering shaft, and the length of the second connection sheet is greater than the length of the first connection sheet.
The axial interval regulator of the electronic four-way adjustable steering pipe column of the present invention, can eliminate the first steering shaft with it is upper
Axial gap between tubing string assembly, and then evaded steering wheel and the problem of play up and down occurred, it is adjustable to improve electronic four-way
The reliability of steering column also improves the comfortableness and security of driving.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the structural schematic diagram of electronic four-way adjustable steering pipe column;
Fig. 2 is the main view of electronic four-way adjustable steering pipe column;
Fig. 3 is the cross-sectional view of electronic four-way adjustable steering pipe column;
Fig. 4 is the structural schematic diagram of axial anti-backlash mechanism;
Fig. 5 is the main view of axial anti-backlash mechanism;
Fig. 6 is the structural schematic diagram of axis circlip;
Fig. 7 is the structural schematic diagram of disk circlip;
Fig. 8 is the main view of disk circlip;
In the figure, it is marked as the 1, first steering shaft;2, the second steering shaft;3, third steering shaft;4, axis circlip;5, axial
Regulating device;6, upper tubing string assembly;7, lower tubular column assembly;8, axial anti-backlash mechanism;801, washer;802, first axis spring;
803, the second axle spring;804, the first clamping ear;805, the second clamping ear;806, the first flange;807, the second flange;9,
Disk circlip;901, disk body;902, the first connection sheet;903, the second connection sheet;904, first flap;905, second gear
Piece;10, angle adjustment device;11, Hooke's joint;12, stretch pipe assembly;13, first bearing;14, second bearing;
15,3rd bearing.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Explanation, it is therefore an objective to help those skilled in the art to have design of the invention, technical solution more complete, accurate and deep
Understand, and facilitates its implementation.
It should be noted that " first ", " second " and " third " do not represent in embodiment disclosed below
Structure and/or absolute differentiation relationship functionally, do not represent the successive sequence that executes yet, and merely for convenience of description.
It as shown in Figures 1 to 8, is a kind of electronic four-way adjustable steering pipe column, which includes
Upper tubing string assembly 6, lower tubular column assembly 7, the first steering shaft 1, the second steering shaft 2 being connect with the first steering shaft 1 and second turn
The flexible pipe assembly and flexible pipe assembly and upper tube that the third steering shaft 3 connected to axis 2 and upper tubing string assembly 6 are rotatablely connected
The connection of column assembly 6 and for control tubing string assembly 6 and angle adjustment device 10 that the first steering shaft 1 is swung and with
Lower tubular column assembly 7 connects with flexible pipe assembly and for controlling flexible pipe assembly and the first steering shaft 1 move alongs the axial direction
Axial-adjustment unit, the second steering shaft 2 are to be rotatably arranged in flexible pipe assembly and the second steering shaft 2 can be with telescoping tube
Assembly, which synchronizes, to be axially moveable.
Specifically, as shown in Figure 1 to Figure 3, upper tubing string assembly 6 and lower tubular column assembly 7 are both ends open, in inside
Empty structure, upper tubing string assembly 6 are located at the top of lower tubular column assembly 7, and steering wheel is located at the top of upper tubing string assembly 6 and direction
Disk is fixedly connected with the first steering shaft 1, and the first steering shaft 1 is set to the two of the inside of tubing string assembly 6 and the first steering shaft 1
Hold protruding from the both ends of upper tubing string assembly 6, the first steering shaft 1 is rotatable relative to upper tubing string assembly 6 and the first steering shaft
1 with upper tubing string assembly 6 be coaxial arrangement, the first steering shaft 1 can rotate about the axis thereof on upper tubing string assembly 6, by direction
The rotary force that disk generates is transferred to the second steering shaft 2.Lower tubular column assembly 7 is to be fixedly installed on the instrument beam of vehicle, is stretched
Draw assembly is the structure of both ends open, inner hollow, and lower tubular column assembly 7 is sheathed on flexible pipe assembly, lower tubular column assembly 7
With flexible pipe assembly and to be coaxially disposed, lower tubular column assembly 7 is for playing the guiding role to flexible pipe assembly, it is ensured that telescoping tube is total
At straight reciprocating motion can be done along axial direction, the lifting of steering wheel is realized.Second steering shaft 2 is set to the interior of flexible pipe assembly
Portion and one end of the second steering shaft 2 is from the open at one end protruding of flexible pipe assembly, the second steering shaft 2 is relative to telescoping tube
Assembly is only rotatable and the second steering shaft 2 and flexible pipe assembly are coaxial arrangement, and the second steering shaft 2 is axially relative to stretch
Draw assembly is fixed setting, and the second steering shaft 2 can do linear reciprocating motion along axial direction in company with flexible pipe assembly is synchronous.The
Two steering shafts 2 can rotate about the axis thereof on flexible pipe assembly, and the rotary force that the first steering shaft 1 is transmitted is transferred to the
Three steering shafts 3.Third steering shaft 3 is to be rotatably arranged on the inside of lower tubular column assembly 7, one end of third steering shaft 3 and the
The connection of two steering shafts 2, the other end of third steering shaft 3 extend out to the end of the outside of lower tubular column assembly 7 and third steering shaft 3
For with intermediate axis connection, the rotary force that the second steering shaft 2 is transmitted is transferred to diverter.Third steering shaft 3 is relative under
Tubing string assembly 7 is only rotatable and third steering shaft 3 and lower tubular column assembly 7 and the second steering shaft 2 are coaxial arrangement, and third turns
Lower tubular column assembly 7 is axially relative to as fixed setting to axis 3, and the second steering shaft 2 and third steering shaft 3 can pass through spline
It realizes connection, realizes synchronous rotary.First steering shaft 1 is connected with the second steering shaft 2 by Hooke's joint, cross axle ten thousand
To section between upper tubing string assembly 6 and flexible pipe assembly, Hooke's joint makes the first steering shaft 1 and the second steering shaft 2
Can synchronous rotary, realize steering wheel generate rotary force transmitting, and make the first steering shaft 1 axis and second turn to
Angle can be generated between the axis of axis 2, adapt to the variation of steering wheel position.One end of flexible pipe assembly and upper tubing string assembly 6
One end rotation connection, upper tubing string assembly 6 is to be rotatably arranged on flexible pipe assembly and in the rotation of upper tubing string assembly 6
The axis perpendicular of heart line and the first steering shaft 1.The end of flexible pipe assembly connecting with upper tubing string assembly 6 is located at lower tubular column
The outside of assembly 7, the end of upper tubing string assembly 6 connecting with flexible pipe assembly are one end far from steering wheel, upper tubing string assembly
6 realize rotation connection by two bolts with flexible pipe assembly, and two bolts are coaxial arrangement and two bolts are located at
The side of Hooke's joint, flexible pipe assembly are is threadedly coupled with bolt, and upper tubing string assembly 6 is equipped with allowing bolt insertion
Mounting hole.
Axial-adjustment unit for realizing steering wheel up and down direction position adjusting, under the action of axial-adjustment unit,
Flexible pipe assembly can move up and down relative to lower tubular column assembly 7, and flexible pipe assembly does linear reciprocating motion along axial direction, stretch
Pipe assembly can drive tubing string assembly 6, the second steering shaft 2, the first steering shaft 1 and direction thereon while moving up and down
Disk, which synchronizes, to be moved up and down, and then realizes the adjusting of steering wheel up and down direction position.The structure of axial-adjustment unit is such as this field
As well known to technical staff, details are not described herein.
As shown in Figure 1 to Figure 3, the first steering shaft 1 is mounted on tubing string assembly by first bearing 13 and second bearing 14
On 6, first bearing 13 and second bearing 14 are ball bearing, and first bearing 13 and second bearing 14 are located at upper tubing string assembly 6
Inside, first bearing 13 are located at one end close to flexible pipe assembly of upper tubing string assembly 6, and it is total that second bearing 14 is located at upper tubing string
At 6 one end far from flexible pipe assembly.The axial interval regulator of the electronic four-way adjustable steering pipe column of the present invention includes pair
First bearing 13 apply load axial anti-backlash mechanism 8 and be sheathed in the first steering shaft 1 and matched with second bearing 14 with
The axis circlip 4 of axial limiting, the load transmission that first bearing 13 applies axial anti-backlash mechanism 8 are carried out to the first steering shaft 1
To the first steering shaft 1.In the axial direction of the first steering shaft 1, axial anti-backlash mechanism 8 and second bearing 14 are located at first bearing 13
And axis is between circlip 4.
As shown in Fig. 3, Fig. 4 and Fig. 5, axial anti-backlash mechanism 8 includes mounting bracket, is set in mounting bracket and with the
The first axis spring 802 of one bearing 13 contact and the second axle spring 803 being set in mounting bracket, upper tubing string assembly 6
Inside the second limit that there are the first confined planes for being in contact with the second axle spring 803 and be in contact with second bearing 14
Face.First steering shaft 1 passes through mounting bracket, and the first confined planes are the inner wall and the first confined planes inside upper tubing string assembly 6
For the plane of the axis perpendicular with the first steering shaft 1.First axis spring 802 be clipped in first bearing 13 and mounting bracket it
Between, the second axle spring 803 is clipped between the first confined planes and mounting bracket, and axial anti-backlash mechanism 8 is used for first bearing 13
Apply along axial elastic acting force, and then the first steering shaft 1 can be applied along axial load, is turned to eliminating first
Axial gap between axis 1 and upper tubing string assembly 6, and then evaded steering wheel and the problem of play up and down occurred, improve driving
Comfort.
As shown in Fig. 3, Fig. 4 and Fig. 5, axial anti-backlash mechanism 8 can produce flexible deformation, and axial anti-backlash mechanism 8 has certain
Elastic deformation amount, axial anti-backlash mechanism 8 can stretch along the axial direction of the first steering shaft 1.802 He of first axis spring
Second axle spring 803 is disk spring and first axis spring 802 and the second axle spring 803 is to be arranged symmetrically, and first
Axle spring 802 is identical with the size of the second axle spring 803 and first axis spring 802 and the second axle spring 803
For coaxial arrangement, first axis spring 802 and the second axle spring 803 and the first steering shaft 1 are also coaxial arrangement, first axle
One and first axis spring 802 and the second axle spring 803 are at least set to spring 802 and the second axle spring 803
Quantity is identical.When first axis spring 802 and the second axle spring 803 are respectively provided with multiple, all first axis springs
802 is successively overlap along axial direction, and the second all axle springs 803 along axial direction also successively to overlap, and apart from first bearing
13 farthest first axis springs 802 carry out cloth with second axle spring 803 nearest apart from first bearing 13 in a manner of pairing
It sets namely all first axis springs 802 stacks and form the first groups of springs, all second axle springs 803, which stack, forms second
Groups of springs, the first groups of springs are to be arranged symmetrically with second spring group.The axial direction that two disk spring groups are formed with mounting bracket disappears
Gap mechanism 8 applies along axial pressure first bearing 13, and then applies elastic acting force, this axial direction to the first steering shaft 1
Anti-backlash mechanism 8 occupies little space, convenient for arranging inside upper tubing string assembly 6.
As shown in Fig. 3, Fig. 4 and Fig. 5, one end end of the outer ring of the bigger diameter end and first bearing 13 of first axis spring 802
Face is in contact, and the miner diameter end of first axis spring 802 is in contact with washer, the first steering shaft 1 have in first bearing 13
The contact surface that one end end face of circle is in contact, the contact surface be the plane parallel with the first confined planes, the contact surface and for circle
Shape plane, the diameter of the contact surface are greater than the interior diameter of the inner ring of first bearing 13.The bigger diameter end of second axle spring 803 with
First confined planes are in contact, and the miner diameter end of the second axle spring 803 is in contact with washer.
As shown in Fig. 3, Fig. 4 and Fig. 5, mounting bracket includes being sheathed in the first steering shaft 1 and being located at first axis spring
802 and second washer 801 between axle spring 803 and the first clamping ear 804 and the second card that are set on washer 801
Lug 805, first axis spring 802 are set on the first clamping ear 804, and the second axle spring 803 is set to the second clamping ear
On 805.Washer 801 is cirque structure and washer 801 and first axis spring 802 and the second axle spring 803 are coaxially to set
Set, the first steering shaft 1 passes through washer 801, the miner diameter end of first axis spring 802 and the second axle spring 803 respectively with washer
One side be in contact.First clamping ear 804 in the axial direction of washer 801 for making first axis spring 802 and washer 801
Keep relatively fixed, the first clamping ear 804 catches on first axis spring 802, and first is clamped ear 804 and for right radially
First axis spring 802 provides a supporting role, so that first axis spring 802 and washer 801 keep coaxial state;Second card
Lug 805 in the axial direction of washer 801 for making the second axle spring 803 keep relatively fixed with washer 801, the second clamping
Ear 805 catches on the second axle spring 803, and the second clamping ear 805 simultaneously is used to provide branch to the second axle spring 803 radially
Support effect, so that the second axle spring 803 keeps coaxial state with washer 801.First clamping ear 804 and the second clamping ear 805
It is L-shaped structure, the first clamping ear 804 and the second clamping ear 805 are respectively facing the two sides of washer 801 along the axial direction of washer 801
It stretches out.The setting of first clamping ear 804 and the second clamping ear 805, guarantees that disk spring will not shift, and then guarantee
It is enough that first steering shaft 1 is applied along axial load, improve reliability;And it is formed and integrates the axial direction of formula structure and disappear
Gap mechanism 8, axial anti-backlash mechanism 8 is compact-sized, facilitates arrangement and installation.
As shown in Figure 4 and Figure 5, first clamping ear 804 be arranged it is multiple and it is all first clamping ears 804 be on washer 801
It is uniformly distributed circumferentially, it is circumferentially equal on washer 801 that multiple and all second clamping ears 805, which are arranged, in the second clamping ear 805
Even distribution, each second clamping ear 805 are located between two first adjacent clamping ears 804, each first clamping ear
804 are located between two second adjacent clamping ears 805.First clamping ear 804 be washer 801 inside edge with
Washer 801 is fixedly connected and the first clamping ear 804 is stretched out towards the side of washer 801, and the first clamping ear 804 is along pad
Circle 801 be axially facing extended a distance on the outside of washer 801 after in bending certain angle, be finally directed away from washer 801
The L-shaped structure formed after being extended a distance at center;Second clamping ear 805 is the inside edge and washer in washer 801
801 be fixedly connected and second clamping ear 805 towards washer 801 the other side stretch out, and second clamping ear 805 be along washer
801 be axially facing extended a distance on the outside of washer 801 after in bending certain angle, be finally directed away from washer 801
The L-shaped structure formed after being extended a distance at the heart.
In the present embodiment, as shown in Figure 4 and Figure 5, the first clamping ear 804 and the second clamping ear 805 are respectively provided with three.
Mounting bracket further includes the first flange 806 and the second flange 807 being set on washer 801, the first flange 806
It is located at the side of washer 801 with the first clamping ear 804, the second flange 807 and the second clamping ear 805 are located at the another of washer 801
Side.It is to be uniformly distributed circumferentially on washer 801 that multiple and all first flange 806, which are arranged, in first flange 806, the first flange
806 setting, guarantee first axis spring 802 along axial direction to washer 801 occur flexible deformation when, first axis spring 802
Surrender will not be flattened completely.It is circumferentially uniform that multiple and all second flange 807, which are arranged, on washer 801 in second flange 807
Distribution, 807 setting of the second flange, when guaranteeing that washer 801 flexible deformation occurs for the second axle spring 803 along axial direction, the
Two axle springs 803 will not flatten surrender completely.Each second flange 807 is located at two adjacent the first flange 806
Between, each first flange 806 is located between two adjacent the second flange 807.First flange 806 is in washer 801
Outer edge be fixedly connected with washer 801, the second flange 807 be also washer 801 outer edge and washer 801 it is fixed
Connection.For first flange 806 between first axis spring 802 and washer 801, the second flange 807 is located at the second axle spring
Between 803 and washer 801.Each first flange 806 and each second flange 807 is circumferentially alternating is uniformly distributed, guarantees first
When flexible deformation occurs for axle spring 802 and the second axle spring 803, washer 801 will not bend deformation because of stress.
As shown in Figure 3 and Figure 6, second bearing 14 is clipped between axis circlip 4 and the second confined planes, the first steering shaft 1 tool
There is the card slot for allowing axis circlip 4 to be embedded in, which is on the periphery of the first steering shaft 1 along the annular entirely circumferentially extended
Groove, the second confined planes are the inner wall inside upper tubing string assembly 6 and the second confined planes are the axis with the first steering shaft 1
Perpendicular plane.Axis circlip 4 be c-type circlip, axis circlip 4 inner peripheral area insertion card slot in, axis with circlip 4 most
Big outer peripheral diameter is greater than the interior diameter of second bearing 14, and axis is bonded with circlip 4 with one end end face of the inner ring of second bearing 14,
One end end face of the outer ring of second bearing 14 is bonded with the second confined planes.Using circlip with axially engage, to the first steering shaft 1
Axial limiting is carried out, and cooperates axial anti-backlash mechanism 8, the axial gap between steering shaft and upper tubing string assembly 6 can be eliminated.
As shown in Fig. 3, Fig. 7 and Fig. 8, third steering shaft 3 is mounted on lower tubular column assembly 7 by 3rd bearing 15, this hair
The axial interval regulator of bright electronic four-way adjustable steering pipe column further includes being sheathed in third steering shaft 3 and to third axis
Hold the disk circlip 9 of 15 application load, the load transmission that 3rd bearing 15 is used to apply disk circlip 9 to third steering shaft
3.3rd bearing 15 is ball bearing, and 3rd bearing 15 is located at the position between the both ends of third steering shaft 3, lower tubular column assembly 7
Inside there are the third confined planes that are in contact with 3rd bearing 15, third confined planes are the inner wall inside lower tubular column assembly 7
Face and third confined planes are the plane with the axis perpendicular of third steering shaft 3, and 3rd bearing 15 is located at disk circlip 9 and the
Between three confined planes.Third confined planes are bonded with one end end face of the outer ring of 3rd bearing 15, and third steering shaft 3 has and the
The 4th confined planes that one end end face of the inner ring of three bearings 15 is in contact, the 4th confined planes are the axis with third steering shaft 3
Perpendicular plane, the 4th confined planes and be circular flat, the diameters of the 4th confined planes is greater than the inner ring of 3rd bearing 15
Interior diameter.
As shown in Fig. 3, Fig. 7 and Fig. 8, disk circlip 9 is used to apply along axial elastic acting force 3rd bearing 15,
And then third steering shaft 3 can be applied along axial load, to eliminate the axis between third steering shaft 3 and lower tubular column assembly 7
To gap, evades steering wheel and the problem of play up and down occur, improve the comfort of driving.Disk circlip 9 can produce elastic change
Shape, disk circlip 9 have certain elastic deformation amount, and disk circlip 9 can be deformed along the axial direction of third steering shaft 3.Dish
Piece circlip 9 includes disk body 901, the first connection sheet 902 being set in disk body 901 and the second connection sheet 903, sets
It is placed in the first flap 904 contacted in the first connection sheet 902 and with 3rd bearing 15 and is set in the second connection sheet 903
Second flap 905, third steering shaft 3 have the card slot for allowing second flap 905 to be embedded in, which is in third steering shaft 3
Along the annular groove entirely circumferentially extended on periphery.Disk body 901 is cirque structure and disk body 901 and third
Steering shaft 3 is coaxial arrangement, and third steering shaft 3 passes through disk body 901.First connection sheet 902 and the second connection sheet 903 are
With certain length, the length of the second connection sheet 903 is greater than the length of the first connection sheet 902, the first connection sheet 902 and the
Two connection sheets 903 are extended at the center of disk body 901 along being radially orientated for disk body 901, the first connection sheet
902 and second connection sheet 903 thickness it is identical as the thickness size of disk body 901.One end of first connection sheet 902 be
The inside edge of disk body 901 is fixedly connected with disk body 901, and first flap 904 is another with the first connection sheet 902
End is fixedly connected, and first flap 904 is simultaneously clipped between 3rd bearing 15 and the first connection sheet 902, first flap 904 and with
One end end face of the inner ring of three bearings 15 is bonded.It is round between the end of first flap 904 and the end of the first connection sheet 902
Arc transition connection, has gap, when so that first flap 904 being squeezed between first flap 904 and the first connection sheet 902
It can be deflected towards at the first connection sheet 902, and the first connection sheet 902 can also be carried out relative to disk body 901
Deflection, disk spring generate flexible deformation.One end of second connection sheet 903 is the inside edge and disk in disk body 901
Ontology 901 is fixedly connected, and second flap 905 is fixedly connected with the other end of the second connection sheet 903, the end of second flap 905
It is connected between portion and the end of the second connection sheet 903 for arc transition, forms arc-shaped transition connection portion, transition connection
Portion is embedded in the card slot in third steering shaft 3, is played in position-limiting action namely one end insertion card slot of second flap 905, the
Between the other end of two baffles 905 is located at and has between the outside of card slot and the end of second flap 905 and the second connection sheet 903
Gap, when second flap 905 is squeezed, the second connection sheet 903 can be deflected relative to disk body 901, disk spring
Generate flexible deformation.
As shown in Figure 7 and Figure 8, multiple and all first connection sheets 902 are arranged in disk body 901 in the first connection sheet 902
Upper to be uniformly distributed circumferentially, one end of the first connection sheet 902 is connect with disk body 901, and first flap 904 is arranged the
The other end of a connecting piece 902, all first flaps 904 are distributed in the surrounding of third steering shaft 3.The setting of second connection sheet 903
Multiple and all second connection sheets 903 in disk body 901 to be uniformly distributed circumferentially, one end of the second connection sheet 903 with
Disk body 901 connects, and the other end of the second connection sheet 903 is arranged in second flap 905, and all second flaps 905 are distributed in
The surrounding of third steering shaft 3.Each second connection sheet 903 is located between two adjacent the first connection sheets 902, each
First connection sheet 902 is located between two adjacent the second connection sheets 903, the first connection sheet 902 and the second connection sheet
903 quantity is identical.
Axial interval regulator using the above structure, when steering wheel by driver apply along steering tube axis of a cylinder
When to upward pulling force, the extruding of disk circlip 9 and axial anti-backlash mechanism 8 by bearing, axial anti-backlash mechanism 8 is compressed, axis
The load applied to anti-backlash mechanism 8 is greater than the pulling force that is subject to of steering wheel, thus the problem of having evaded steering wheel upward play;When
Steering wheel by the person of sailing apply along steering column pressure axially downwardly when, due to the axis position-limiting action of circlip 4, disk
Circlip 9 is compressed, and the pulling-out force that the load and axis that disk circlip 9 applies are generated with circlip 4 is greater than the pressure that steering wheel is subject to,
The problem of equally also having evaded steering wheel upward play, improve the comfort of driving.
The present invention is exemplarily described in conjunction with attached drawing above.Obviously, present invention specific implementation is not by above-mentioned side
The limitation of formula.As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out;Or not
It is improved, above-mentioned conception and technical scheme of the invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (10)
1. the axial interval regulator of electronic four-way adjustable steering pipe column, electronic four-way adjustable steering pipe column includes that upper tubing string is total
At, lower tubular column assembly, the first steering shaft and third steering shaft, the first steering shaft be mounted on by first bearing and second bearing
On tubing string assembly, it is characterised in that: the axial interval regulator includes that the axial direction for applying load to the first bearing disappears
It gap mechanism and is sheathed in first steering shaft and is matched with the second bearing to carry out axial limit to the first steering shaft
The axis circlip of position, axial anti-backlash mechanism and second bearing are between first bearing and axis circlip.
2. the axial interval regulator of electronic four-way adjustable steering pipe column according to claim 1, it is characterised in that: institute
Stating axial anti-backlash mechanism includes mounting bracket, the first axis spring for being set in mounting bracket and contacting with the first bearing
With the second axle spring being set in mounting bracket, the inside of the upper tubing string assembly has to be contacted with the second axle spring
First confined planes.
3. the axial interval regulator of electronic four-way adjustable steering pipe column according to claim 2, it is characterised in that: institute
It states first axis spring and second axle spring is disk spring and first axis spring and the second axle spring are pair
Claim arrangement.
4. the axial interval regulator of electronic four-way adjustable steering pipe column according to claim 2 or 3, feature exist
It is respectively provided in: the first axis spring and second axle spring multiple.
5. according to the axial interval regulator of any electronic four-way adjustable steering pipe column of claim 2 to 4, feature
Be: the mounting bracket includes being sheathed in first steering shaft and being located at the first axis spring and second axis
The is set to the washer between spring and the first clamping ear being set on washer and the second clamping ear, first axis spring
On one clamping ear, the second axle spring is set on the second clamping ear.
6. the axial interval regulator of electronic four-way adjustable steering pipe column according to claim 5, it is characterised in that: institute
It states the first clamping ear and multiple and all first clamping ears is set on the washer to be uniformly distributed circumferentially, described second is clamped
Ear setting is multiple and all second is clamped ear on the washer to be uniformly distributed circumferentially, and each second clamping ear is located at
Between two first adjacent clamping ears.
7. the axial interval regulator of electronic four-way adjustable steering pipe column according to claim 5, it is characterised in that: institute
Stating mounting bracket further includes the first flange and the second flange being set on the washer, the first flange and the first clamping ear
Positioned at the side of washer, the second flange and described second is clamped the other side that ear is located at washer, and the first flange setting is multiple
And all first flange are uniformly distributed circumferentially on the washer, multiple and all second flange are arranged in second flange
To be uniformly distributed circumferentially on the washer, each second flange is located between two adjacent the first flange.
8. the axial interval regulator of electronic four-way adjustable steering pipe column according to any one of claims 1 to 7, feature
Be: the third steering shaft is mounted on the lower tubular column assembly by 3rd bearing, and the axial interval regulator is also
Disk circlip including being sheathed in third steering shaft and applying to 3rd bearing load, disk circlip include disk body, set
The first connection sheet and the second connection sheet that are placed in disk body are set in the first connection sheet and contact with the 3rd bearing
First flap and the second flap that is set in the second connection sheet, the third steering shaft there is the card for allowing second flap to be embedded in
Slot.
9. the axial interval regulator of electronic four-way adjustable steering pipe column according to claim 8, it is characterised in that: institute
It states the first connection sheet and multiple and all first connection sheets is set in the disk body to be uniformly distributed circumferentially, first connects
One end of piece is connect with disk body, and the other end of the first connection sheet, all first flap distributions are arranged in the first flap
In the surrounding of the third steering shaft.
10. the axial interval regulator of electronic four-way adjustable steering pipe column according to claim 9, it is characterised in that:
Multiple and all second connection sheets are arranged in the disk body to be uniformly distributed circumferentially in second connection sheet, and second connects
One end of contact pin is connect with disk body, and the other end of the second connection sheet, all second flaps point are arranged in the second flap
For cloth in the surrounding of the third steering shaft, the length of the second connection sheet is greater than the length of the first connection sheet.
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CN201811553598.1A CN109677483B (en) | 2018-12-19 | 2018-12-19 | Axial clearance adjusting device of electric four-direction adjustable steering column |
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CN201811553598.1A CN109677483B (en) | 2018-12-19 | 2018-12-19 | Axial clearance adjusting device of electric four-direction adjustable steering column |
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CN109677483B CN109677483B (en) | 2021-08-31 |
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