CN216580676U - Length adjustment guide structure of long flexible regulation steering column - Google Patents
Length adjustment guide structure of long flexible regulation steering column Download PDFInfo
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- CN216580676U CN216580676U CN202123312013.7U CN202123312013U CN216580676U CN 216580676 U CN216580676 U CN 216580676U CN 202123312013 U CN202123312013 U CN 202123312013U CN 216580676 U CN216580676 U CN 216580676U
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Abstract
The utility model relates to a length adjusting guide structure of a long telescopic adjusting steering column, which comprises a guide strip, a guide block and a guide pin; the guide strip is arranged on the supporting sleeve and limited by the supporting sleeve; the guide block is installed on the inner pipe column, the guide pin is installed on the guide pipe, the inner pipe column is sleeved in the guide pipe, the guide pipe is sleeved in the support sleeve, and when the inner pipe column and the guide pipe perform telescopic motion relative to the support sleeve, the guide block and the guide pin slide along the length direction of the guide strip. The guide structure is reasonable in arrangement, compact in installation and small in occupied space, the installation of the guide structure improves the stability of the inner pipe column and the guide column during length adjustment, and the shaking of the adjusting screw rod and the motor during the length adjustment process is reduced.
Description
Technical Field
The utility model relates to a steering column technical field for the vehicle, concretely relates to length adjustment guide structure of long flexible regulation steering column.
Background
A steering column is a mechanism for connecting a steering wheel and a steering gear. In order to ensure driving comfort and to achieve unmanned driving at the same time, the steering column length needs to be adjusted. The steering column at the present stage comprises a support sleeve, an inner column, a length adjusting motor, a bracket and an energy absorption sheet, wherein the inner column is arranged in the support sleeve and performs telescopic motion relative to the support sleeve; the length adjusting motor is fixed on the supporting sleeve and is connected with the support through a nut, the energy absorbing piece is connected with the inner pipe column, and the support is connected with the energy absorbing piece. When the length needs to be adjusted, the length adjusting motor drives the energy absorption piece through the support so as to drive the inner pipe column to stretch out and contract in the supporting sleeve, and then the length of the steering pipe column is adjusted. However, the existing steering column has unreasonable design of a guide structure between the inner column and the support sleeve, is unstable in adjustment process, is easy to shake, and cannot meet the requirements of modern people; in addition, the adjustable length of the inner pipe column is limited due to the limitation of the length of the extending end of the inner pipe column, and the inner pipe column can only move within the length range of +/-30 mm.
Disclosure of Invention
An object of the utility model is to provide a length adjustment guide structure of long flexible regulation steering column, this guide structure is rationally arranged, and the installation is compact, and occupation space is little, and the installation of this guide structure is interior tubular column when having improved length adjustment and the stationarity of guide column, has reduced rocking of adjusting lead screw and motor among the length adjustment process.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a length adjusting guide structure of a long telescopic adjusting steering column comprises a guide strip, a guide block and a guide pin; the guide strip is arranged on the supporting sleeve and limited by the supporting sleeve; the guide block is installed on the inner pipe column, the guide pin is installed on the guide pipe, the inner pipe column is sleeved in the guide pipe, the guide pipe is sleeved in the support sleeve, and when the inner pipe column and the guide pipe perform telescopic motion relative to the support sleeve, the guide block and the guide pin slide along the length direction of the guide strip.
As the utility model discloses a preferred, the outside of gib block is provided with the baffle, the baffle mounting is on the support sleeve.
Preferably, two sides of the guide block in sliding contact with the guide strip are concave cambered surfaces; the end face of the guide pin, which is in contact with the guide strip, is of a circular structure.
As a preferred aspect of the present invention, the inner tubular column is provided with a C-shaped strip, the guide tube is provided with an avoidance gap at a position opposite to the C-shaped strip along the length direction of the guide tube, the end of the C-shaped strip is provided with a length adjusting bracket, the length adjusting bracket is fixedly connected with an adjusting nut of a length adjusting mechanism, and the guide block is press-fitted on the length adjusting bracket and the C-shaped strip; the guide pipe is provided with a C-shaped support at the tail end of the avoidance opening, the C-shaped support is fixedly connected with the motor support, the motor support is provided with a length adjusting mechanism, and the guide pin is pressed on the motor support.
As the utility model discloses a preferred, the lateral wall of stand pipe is opened has the groove that compresses tightly, and the compact heap is arranged in and is compressed tightly the inslot, the terminal of compact heap supports on the lateral wall of interior tubular column.
As a further preferred aspect of the present invention, the C-shaped strip is provided with a crumple groove and a mounting hole communicating with the crumple groove along the length direction of the C-shaped strip, the crumple groove includes a diameter-variable region and an equal-diameter region, the diameter-variable region is communicated with the mounting hole, and the minimum width of the diameter-variable region is greater than the width of the equal-diameter region; the bottom of the guide block is provided with a connecting part, the connecting part comprises a small round connecting end and a large round connecting end, the small round connecting end and the large round connecting end are both of a circular structure, the diameter of the large round connecting end is larger than that of the small round connecting end, and the width of the equal-diameter area of the crumpling groove is smaller than that of the large round connecting end; the length adjustment support is processed with the pressure equipment hole in the position relative with the connecting portion of guide block, and the guide block pressure equipment is on the length adjustment support, with length adjustment support transition fit, the little round connection end of guide block and the mounting hole of C shape strip little clearance fit, the big round connection end interference pressure of guide block is in the reducing region of the groove of collapsing.
As a further preferred aspect of the present invention, the length adjusting mechanism includes a motor, a driving screw, and an adjusting nut; wherein the motor is arranged on the motor bracket; threads with opposite spiral directions are processed at two ends of the transmission screw rod, the transmission screw rod penetrates through a gear box of the motor, and the transmission screw rod is electrically driven to rotate through the motor; the two adjusting nuts are respectively installed at two ends of the transmission screw rod, the adjusting nut close to the inner pipe column is fixedly connected with the inner pipe column, and the adjusting nut far away from the inner pipe column is fixedly connected with the supporting sleeve.
As the utility model discloses a further preferred, length adjustment mechanism still includes first stopper, second stopper, chucking ring, the position that is close to the motor is provided with first stopper on the drive screw, drive screw's both ends have set gradually second stopper, chucking ring from inside to outside in the position that is close to the tip.
The utility model has the advantages and beneficial effect:
1. the utility model provides a guide structure is rationally arranged, and the installation is compact, and occupation space is little, and the installation of this guide structure has improved the stationarity of interior tubular column and guide post when length adjustment, has reduced rocking of adjusting lead screw and motor among the length adjustment process, and through the design to guide block and uide pin special construction, makes it reduce the slip frictional force when playing good guide effect moreover.
2. The guide block in this application guide structure when playing the guide effect, through with the cooperation of C shape strip on the inner tube post make the steering column possess the function of bursting to contract, the guide block has the direction simultaneously and the function of bursting to contract promptly.
3. Adopt the guide structure of this application to realize including add the stand pipe between tubular column and the support sleeve, reach the flexible purpose of second grade to make the steering column have bigger length control scope (the length control scope of conventional steering column is about 30mm, the utility model discloses a steering column length control scope has promoted 3 times at 125 mm).
4. This application makes the steering column both realize the long stroke regulatory function of tubular column through the rational design to guide structure and length adjustment mechanism, can also guarantee that accommodation process is stable simultaneously, satisfies unmanned driving's demand.
5. The both ends processing of the drive screw that the length adjustment mechanism on the stand pipe adopted has screw opposite direction, in the length adjustment process, the support sleeve is motionless, motor drive screw rotates the back, tubular column along drive screw reciprocating motion in the regulation screw drive of front end, the regulation screw of rear end keeps motionless, drive screw drives the motor, reciprocating motion in the regulation screw of stand pipe on the support sleeve, the speed of the motion of the inner tubular column that this kind of regulation mode front end was adjusted the screw and is driven is the twice of the speed of the stand pipe that the motor drove, can promote governing speed greatly (be the twice of the speed of current length adjustment mode), make the tubular column can accomplish length adjustment in the time of regulation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is an axonometric view of the installation guide structure of the present invention, with the long telescopic adjustment steering column in an extended state;
fig. 2 is an isometric view of the installation guide structure of the present invention with the long telescopic adjustment steering column in a semi-extended state;
fig. 3 is an axonometric view of the installation guide structure of the present invention, in which the long telescopic adjustment steering column is in a contracted state;
fig. 4 is an axonometric view of the inner tubular column of the present invention;
fig. 5 is an axonometric view of the guide tube of the present invention;
FIG. 6 is a schematic view of the connection between the inner tubular column and the guide tube of the present invention
Fig. 7 is an isometric view of the length adjustment mechanism of the present invention;
fig. 8 is an exploded view of the guide structure of the present invention;
fig. 9 is an isometric view of the guide block of the present invention;
fig. 10 is a top view of the guide block of the present invention;
fig. 11 is a bottom view of the guide block of the present invention;
fig. 12 is a top view of the C-shaped strip of the present invention.
Reference numerals: the pipe column comprises an inner pipe column 1, a support sleeve 2, a guide pipe 3, a length adjusting mechanism 4, a guide structure 5, a C-shaped strip 11, a length adjusting support 12, an avoiding notch 31, a C-shaped support 32, a motor support 33, a pressing groove 34, a pressing block 35, a motor 41, a transmission lead screw 42, an adjusting screw nut 43, a first limiting block 44, a second limiting block 45, a clamping ring 46, a guide strip 51, a guide block 52, a guide pin 53, a baffle plate 54, a collapsing groove 111, a mounting hole 112, a connecting part 521, a reducing area 1111, an equal diameter area 1112, a small round connecting end 5211 and a large round connecting end 5212.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
In the description of the present application, it should be noted that the terms "in", "under", and the like indicate the orientation or positional relationship: the particular arrangements or components shown in the drawings, or the orientations or positional relationships conventionally used in the manufacture of the applications, are for convenience only and to simplify the description, and are not intended to indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are not to be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1 to 3, the long telescopic adjusting steering column includes an inner column 1, a support sleeve 2, a guide tube 3, a length adjusting mechanism 4, and a guide structure 5; the inner pipe column 1 is sleeved in the guide pipe 3, and the guide pipe 3 is sleeved in the support sleeve 2; the length adjusting mechanism 4 is installed on the guide pipe 3, and two adjusting nuts 43 capable of moving towards opposite directions or moving towards opposite directions on the length adjusting mechanism 4 are fixedly connected with the inner pipe column 1 and the support sleeve 2 respectively; the guide structure 5 is arranged between the inner pipe column 1, the guide pipe 3 and the support sleeve 2, and the support sleeve 2 can be an aluminum casting, a stamped iron piece and the like.
Referring to fig. 4 to 6, a C-shaped strip 11 is arranged on the inner tubular column 1, the end of the C-shaped strip 11 is connected with a length adjusting bracket 12 through a rivet, the length adjusting bracket 12 is fixedly connected with an adjusting nut 43 of the length adjusting mechanism 4, and the guide block 52 is press-fitted on the length adjusting bracket and the C-shaped strip;
an avoiding opening 31 is processed in the position, opposite to the C-shaped strip, of the guide pipe 3 along the length direction of the guide pipe, a C-shaped support 32 is arranged at the tail end of the avoiding opening on the guide pipe 3, the C-shaped support 32 is fixedly connected with a motor support 33 through a flat head bolt, a length adjusting mechanism 4 is installed on the motor support 33, and the guide pin 53 is pressed on the motor support 33; in addition, the side wall of the guide tube 3 is provided with a pressing groove 34, a pressing block 35 is arranged in the pressing groove, and the tail end of the pressing block 35 abuts against the side wall of the inner pipe column 1 (see fig. 1).
Referring to fig. 4 to 6 and 8, the guide structure 5 includes a guide bar 51, a guide block 52, a guide pin 53, and a baffle 54; the guide strip 51 is arranged on the support sleeve 2 and limited by the support sleeve; the guide block 52 is mounted on the inner pipe column, specifically on the length adjusting bracket and the C-shaped strip of the inner pipe column, and two side surfaces of the guide block 52 in sliding contact with the guide strip are concave cambered surfaces (see fig. 9 and 10); the guide pin 53 is arranged on the guide tube, particularly on the motor bracket 33 of the guide tube, the end surface of the guide pin 53, which is contacted with the guide strip 51, is of a circular structure, and the guide block and the guide pin are designed into the structure so as to reduce sliding friction while having good guiding effect; when the inner pipe column 1 and the guide pipe 3 perform telescopic motion relative to the support sleeve 2, the guide block 52 and the guide pin 53 slide along the length direction of the guide strip 51; the baffle plate 54 is arranged outside the guide strip 51, and the baffle plate 54 is fixed on the support sleeve 2 through bolts.
Referring to fig. 9 to 12, a crush slot 111 and a mounting hole 112 communicated with the crush slot are formed in the C-shaped strip 11 along the length direction of the C-shaped strip, the crush slot 111 includes a variable diameter region 1111 and an equal diameter region 1112, the variable diameter region 1111 is communicated with the mounting hole 112, and the minimum width of the variable diameter region 1111 is greater than the width of the equal diameter region; the bottom of the guide block 52 is provided with a connecting part 521, the connecting part 521 comprises a small circular connecting end 5211 and a large circular connecting end 5212, the small circular connecting end 5211 and the large circular connecting end 5212 are both circular structures, the diameter of the large circular connecting end 5212 is larger than that of the small circular connecting end 5211, and the width of the equal-diameter area 1112 of the collapse groove is smaller than that of the large circular connecting end 5212; the length adjusting bracket 12 is provided with press-fitting holes at positions corresponding to the connecting portions 521 of the guide blocks, the guide blocks 52 are press-fitted on the length adjusting bracket 12 and are in transition fit with the length adjusting bracket, the small round connecting ends 5211 of the guide blocks are in small clearance fit with the mounting holes 112 of the C-shaped strips, and the large round connecting ends of the guide blocks are pressed in the diameter-changing area of the crumpling groove in an interference manner.
Referring to fig. 1, 5 to 7, the length adjusting mechanism 4 includes a motor 41, a transmission screw 42, an adjusting nut 43, a first limiting block 44, a second limiting block 45, and a clamping ring 46; wherein the motor 41 is mounted on the motor bracket 33; threads with opposite spiral directions are processed at two ends of the transmission screw rod 42, the transmission screw rod 42 penetrates through a gear box of the motor 41 and is electrically driven by the motor 41 to rotate, a first limiting block 44 is arranged at a position, close to the motor, on the transmission screw rod 42, and a second limiting block 45 and a clamping ring 46 are sequentially arranged at two ends of the transmission screw rod 42 from inside to outside at a position, close to the end part; the two adjusting nuts 43 are respectively installed at two ends of the transmission screw rod 42, the adjusting nut 43 close to the inner tubular column 1 is fixedly connected with the length adjusting support 12 on the inner tubular column 1, and the adjusting nut 43 far away from the inner tubular column is fixedly connected with the support sleeve 2.
The working process is as follows:
when the length of the steering column needs to be adjusted, the supporting sleeve is fixed, after the motor 41 drives the transmission screw 42 to rotate, the adjusting screw at the front end drives the inner column to reciprocate along the transmission screw, the adjusting screw at the rear end keeps fixed, and the transmission screw drives the motor and the guide pipe to reciprocate in the adjusting screw on the supporting sleeve, so that the purpose of quickly adjusting the length is achieved; in the process of adjusting the length, the guide block 52 and the guide pin 53 slide along the length direction of the guide strip 51, so that the stability of the adjusting process is ensured.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention, and not for limiting the same; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (8)
1. A length adjustment guide structure of a long telescopic adjustment steering column is characterized by comprising a guide strip, a guide block and a guide pin; the guide strip is arranged on the supporting sleeve and limited by the supporting sleeve; the guide block is installed on the inner pipe column, the guide pin is installed on the guide pipe, the inner pipe column is sleeved in the guide pipe, the guide pipe is sleeved in the support sleeve, and when the inner pipe column and the guide pipe perform telescopic motion relative to the support sleeve, the guide block and the guide pin slide along the length direction of the guide strip.
2. The length adjustment guide structure of a long telescopic adjustment steering column according to claim 1, wherein a baffle is provided outside the guide bar, and the baffle is mounted on the support sleeve.
3. The length-adjusting guide structure of a long telescopic-adjusting steering column according to claim 1 or 2, wherein two side surfaces of the guide block in sliding contact with the guide bar are concave arc surfaces; the end face of the guide pin, which is in contact with the guide strip, is of a circular structure.
4. The length adjusting and guiding structure of the long telescopic adjusting steering column according to claim 1 or 2, characterized in that a C-shaped strip is arranged on the inner column, an avoiding notch is processed on the guiding tube at a position opposite to the C-shaped strip along the length direction of the guiding tube, a length adjusting bracket is mounted at the end part of the C-shaped strip, the length adjusting bracket is fixedly connected with an adjusting nut of the length adjusting mechanism, and the guiding block is pressed on the length adjusting bracket and the C-shaped strip; the guide pipe is provided with a C-shaped support at the tail end of the avoidance notch, the C-shaped support is fixedly connected with the motor support, the motor support is provided with a length adjusting mechanism, and the guide pin is pressed on the motor support.
5. The length adjustment guide structure of a long telescopic adjustment steering column according to claim 1 or 2, wherein a pressing groove is formed in a side wall of the guide tube, the pressing block is placed in the pressing groove, and the tail end of the pressing block abuts against the side wall of the inner column.
6. The length adjustment guide structure of a long telescopic adjustment steering column according to claim 4, wherein a crumple groove and a mounting hole communicated with the crumple groove are formed in the C-shaped strip along the length direction of the C-shaped strip, the crumple groove comprises a diameter-variable area and a constant-diameter area, the diameter-variable area is communicated with the mounting hole, and the minimum width of the diameter-variable area is greater than the width of the constant-diameter area; the bottom of the guide block is provided with a connecting part, the connecting part comprises a small round connecting end and a large round connecting end, the small round connecting end and the large round connecting end are both of a circular structure, the diameter of the large round connecting end is larger than that of the small round connecting end, and the width of the equal-diameter area of the crumpling groove is smaller than that of the large round connecting end; the length adjustment support is processed with the pressure equipment hole in the position relative with the connecting portion of guide block, and the guide block pressure equipment is on the length adjustment support, with length adjustment support transition fit, the little round connection end of guide block and the mounting hole of C shape strip little clearance fit, the big round connection end interference pressure of guide block is in the reducing region of the groove of collapsing.
7. The length adjustment guide structure of a long telescopic adjustment steering column according to claim 4, wherein the length adjustment mechanism comprises a motor, a transmission screw rod and an adjustment nut; wherein the motor is arranged on the motor bracket; threads with opposite spiral directions are processed at two ends of the transmission screw rod, the transmission screw rod penetrates through a gear box of the motor, and the transmission screw rod is electrically driven to rotate through the motor; the two adjusting nuts are respectively installed at two ends of the transmission screw rod, the adjusting nut close to the inner pipe column is fixedly connected with the inner pipe column, and the adjusting nut far away from the inner pipe column is fixedly connected with the supporting sleeve.
8. The length adjusting guide structure of the long telescopic adjusting steering column according to claim 7, wherein the length adjusting mechanism further comprises a first limiting block, a second limiting block and a clamping ring, the first limiting block is arranged on the transmission screw rod at a position close to the motor, and the second limiting block and the clamping ring are sequentially arranged at two ends of the transmission screw rod from inside to outside at a position close to the end part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123312013.7U CN216580676U (en) | 2021-12-27 | 2021-12-27 | Length adjustment guide structure of long flexible regulation steering column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123312013.7U CN216580676U (en) | 2021-12-27 | 2021-12-27 | Length adjustment guide structure of long flexible regulation steering column |
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| Publication Number | Publication Date |
|---|---|
| CN216580676U true CN216580676U (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123312013.7U Active CN216580676U (en) | 2021-12-27 | 2021-12-27 | Length adjustment guide structure of long flexible regulation steering column |
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| CN (1) | CN216580676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116062019A (en) * | 2023-01-06 | 2023-05-05 | 中国第一汽车股份有限公司 | Large-stroke steering column and vehicle with same |
-
2021
- 2021-12-27 CN CN202123312013.7U patent/CN216580676U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116062019A (en) * | 2023-01-06 | 2023-05-05 | 中国第一汽车股份有限公司 | Large-stroke steering column and vehicle with same |
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