CN116062019A - Large-stroke steering column and vehicle with same - Google Patents
Large-stroke steering column and vehicle with same Download PDFInfo
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- CN116062019A CN116062019A CN202310020921.3A CN202310020921A CN116062019A CN 116062019 A CN116062019 A CN 116062019A CN 202310020921 A CN202310020921 A CN 202310020921A CN 116062019 A CN116062019 A CN 116062019A
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- 230000007246 mechanism Effects 0.000 claims abstract description 96
- 238000004904 shortening Methods 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000009467 reduction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
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- 208000014674 injury Diseases 0.000 description 1
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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
- B62D1/183—Steering columns yieldable or adjustable, e.g. tiltable adjustable between in-use and out-of-use positions, e.g. to improve access
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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
- B62D1/185—Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
Abstract
The invention discloses a large-stroke steering column and a vehicle with the same, wherein the large-stroke steering column comprises a shell, an inner column tube, a steering shaft length adjusting mechanism and a steering column bracket; the shell is provided with an avoidance groove; the inner column tube comprises a first inner column tube and a second inner column tube, the first inner column tube is provided with a length adjusting guide groove, the inner column is arranged in the shell, and the second inner column tube is arranged in the first inner column tube; the steering shaft is arranged in the inner column tube; the steering column bracket is fixedly connected with the shell; the length adjusting mechanism drives the first inner column tube to correspondingly stretch and retract in the shell, and simultaneously drives the second inner column tube to correspondingly stretch and retract in the first inner column tube; the steering shaft length adjusting mechanism can enable each section of steering column tube to be adjusted at the same time, the adjusting speed is higher, two matching points are arranged between the driving mechanism and the screw rod, so that the stability of the structure is improved, and the problem that the assembly is difficult due to the fact that the matching sizes of the screw tube and the screw rod are too long and the straightness is not matched is avoided.
Description
Technical Field
The invention relates to the technical field of vehicle steering, in particular to a large-stroke steering column.
Background
With the increasing maturity of intelligent driving technology, it is possible in the future that the steering wheel may be folded and retracted into the instrument panel for the purpose of lifting the driver's space when the vehicle is automatically driven. The steering wheel can retract into the instrument board, the steering column is required to have a large enough length adjustment range, the current steering column technology basically adopts a one-section steering column tube, and the steering column length adjustment can be carried out through the telescopic steering column tube, so that the position of the steering wheel is adjusted. When driving the vehicle, a user can adjust the steering wheel to be the longest so as to facilitate control; after stopping the vehicle the user will adjust the steering column to a minimum to facilitate getting off. If the large-stroke steering column is manufactured by the existing structure, the length of a steering column tube of the steering column is too long, so that the steering column assembly cannot be arranged in an automobile chassis due to the too long steering column tube, and in the driving process, when a vehicle is impacted, a driver possibly collides with the steering wheel forwards, and the injury and even life are caused, so that the problem needs to be solved.
Disclosure of Invention
The invention aims to provide a large-stroke steering column and a vehicle with the same, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a large travel steering column comprising:
the shell is provided with an avoidance groove;
the inner column tube comprises a first inner column tube and a second inner column tube, the first inner column tube is provided with a length adjusting guide groove, the inner column is arranged in the shell, and the second inner column tube is arranged in the first inner column tube;
a steering shaft mounted in the inner column tube and rotating in the inner column tube;
the length adjusting mechanism is connected with the shell, penetrates through the avoidance groove and is connected with the first inner column tube, penetrates through the avoidance groove and the length adjusting guide groove and is connected with the second inner column tube, and drives the first inner column tube to correspondingly stretch and retract in the shell and simultaneously drives the second inner column tube to correspondingly stretch and retract in the first inner column tube;
the steering column support is fixedly connected with the shell.
Further, the length adjustment mechanism includes:
a drive mechanism, the drive mechanism and the housing;
the driving mechanism is connected with the adjusting screw rod and can drive the adjusting screw rod to rotate;
the adjusting screw is sleeved on the adjusting screw rod, and the internal thread of the adjusting screw is correspondingly arranged with the external thread of the adjusting screw rod;
the internal thread wire tube is sleeved on the adjusting screw rod, and the internal thread of the internal thread wire tube is correspondingly arranged with the external thread of the adjusting screw rod;
the first inner column tube is provided with a length adjusting guide groove, the adjusting nut penetrates through the avoiding groove and is connected with the first inner column tube, and the inner thread tube penetrates through the avoiding groove and the length adjusting guide groove and is connected with the second inner column tube.
Further, the driving mechanism includes:
a length adjusting motor;
the turbine worm speed reducing mechanism is connected with the shell, the turbine worm speed reducing mechanism is in driving connection with the length adjusting motor, and the turbine worm speed reducing mechanism is connected with the adjusting screw rod.
Further, the method comprises the steps of:
the first bracket is connected with the adjusting nut;
the first bracket passes through the avoidance groove and is connected with the first bracket mounting hole;
the second support penetrates through the avoidance groove and the length adjustment guide groove to be connected with the second inner column tube, and the second support is connected with the inner thread wire tube.
Further, the adjusting screw includes:
the first adjusting part is provided with the adjusting nut;
the second adjusting part is arranged on the internal thread wire tube;
the limiting polish rod is arranged between the first adjusting part and the second adjusting part, and the driving mechanism stops working when the adjusting screw rod drives the adjusting screw nut to move to the limiting polish rod;
when the adjusting screw rod rotates, the moving distance of the adjusting screw nut on the first adjusting part in unit time is smaller than the moving distance of the internal thread screw tube on the second adjusting part, when the adjusting screw nut is close to the bottom end of the adjusting screw rod of the driving mechanism, the joint of the internal thread screw tube and the second internal column tube is located at one end of the length adjusting guide groove close to the driving mechanism, and when the adjusting screw nut is located at the position of the limiting polish rod, the joint of the internal thread screw tube and the second internal column tube is located at one end of the length adjusting guide groove far away from the driving mechanism.
Further, the control mechanism is also included, the control mechanism includes:
the controller is used for controlling the action of the length adjusting motor;
when the adjusting nut moves to the limiting polish rod, triggering the extending limiter, sending a limiting signal by the extending limiter, and receiving the limiting signal by the controller to generate a control instruction, wherein the control instruction controls the length adjusting motor to stop working;
when the adjusting screw moves to the joint of the adjusting screw rod and the worm and gear speed reducing mechanism, triggering the shortening limiter, sending a limiting signal by the shortening limiter, receiving the limiting signal by the controller, and generating a control instruction, wherein the control instruction controls the length adjusting motor to stop working;
the telescopic switch can send out an extension signal or a shortening signal, when the controller receives the extension signal or the shortening signal, an extension instruction or a shortening instruction is generated, and the extension instruction or the shortening instruction can control the length adjusting motor to rotate forward or reversely, so that the adjusting screw rod is driven to rotate forward or reversely, and the adjusting screw nut and the internal thread screw tube are driven to move in the direction away from the driving mechanism or move in the direction close to the driving mechanism at the same time.
Further, the steering wheel is provided with a collapsing mechanism, the collapsing mechanism is arranged on the first inner column tube and the second inner column tube, and when collision occurs and the steering wheel is extruded, the second inner column tube collapses into the first inner column tube.
Further, the mechanism of collapsing includes second support and the guide way that collapses, the guide way that collapses from wearing to establish the one end of second support to the structure that the other end becomes narrow gradually, the second support wear to locate the part in the guide way with interference fit in the guide way, when second inner column pipe stretches out the end atress and exceeds the peak force that collapses, the second support wear to locate the part in the guide way will the inner wall extrusion deformation that the guide way becomes narrow gradually collapses to extrude into the region that the guide way becomes narrow gradually.
Further, the steering shaft includes:
the device comprises an upper pipe, a steering wheel and a lower pipe, wherein a multi-tooth spline is arranged at one end of the upper pipe and connected with the steering wheel;
the lower shaft is connected with the upper pipe through a spline and is provided with a nylon injection molding layer.
In another aspect, there is provided a vehicle comprising a large travel steering column as claimed in any one of the preceding claims.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a stepped steering column tube type large-adjustment-stroke steering column and a coaxial same-step type adjustment mechanism, wherein a driving mechanism drives a first inner column tube and a second inner column tube to stretch and retract simultaneously, so that the coaxial step type adjustment mechanism enables each section of steering column tube to be adjusted simultaneously, compared with a section of steering column with the same adjustment stroke, the adjustment speed is faster under the condition of the same motor rotating speed, so that the height adjustment time of a steering wheel is not overlong after the adjustment stroke is increased, the problems that the assembly length is overlong and the adjustment speed of the large-stroke steering column is slow due to the traditional design and manufacture of the large-stroke steering column are solved, meanwhile, as the length adjustment screw rod of the large-stroke steering column is longer, if the screw rod is used for adjustment singly, the screw rod engagement distance is short, the risk of shaking generated by the screw rod and the screw rod during adjustment exists, and the stability is poor; if the internal thread screw tube is used independently for adjustment, the matching length of the screw rod screw nut is longer, and the shape and position tolerance such as straightness and the like are not easy to control during part processing, so that the problems of difficult assembly, large abnormal sound due to gaps and the like during adjustment can be caused. The coaxial stepping type driving mechanism adopts the screw nut and the internal thread screw tube to be synchronously matched with the screw rod, and two matching points are arranged between the driving mechanism and the screw rod, so that the stability of the structure is improved, and the problem of difficult assembly caused by overlong matching dimensions of the screw tube and the screw rod and unmatched straightness is also avoided.
Drawings
FIG. 1 is a schematic view of a large-stroke steering column connection structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of a steering shaft connection structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of an inner pillar tube connection structure according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a connection structure of a length adjustment mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic view of a large-stroke steering column according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5 in accordance with an embodiment of the present invention;
FIG. 7 is a schematic diagram of a connection structure of a collapsing mechanism according to an embodiment of the present invention;
FIG. 8 is a schematic view of a housing structure according to an embodiment of the present invention;
FIG. 9 is a schematic diagram showing the connection of control mechanisms according to an embodiment of the present invention;
in the figure: 100. a housing; 200. a steering shaft; 300. an inner column tube; 400. a length adjusting mechanism; 500. an angle adjusting mechanism; 600. a collapsing mechanism; 700. steering column bracket; 800. a control mechanism; 101. an avoidance groove; 201. an upper pipe; 202. a lower shaft; 301. a first inner column tube; 302. a second inner column tube; 401. a length adjusting motor; 402. a worm gear speed reducing mechanism; 403. adjusting a screw rod; 404. adjusting a nut; 405. an internally threaded wire tube; 406. a first bracket; 407. a second bracket; 601. a collapsing guide groove; 801. a controller; 802. an extension limiter; 803. shortening the limiter; 804. a telescopic switch; 2011. a multi-tooth spline; 2021. a nylon injection molding layer; 3011. a length adjusting guide groove; 3012. a first bracket mounting hole; 4031. a first adjusting part; 4032. a second adjusting part; 4033. and (5) limiting the polished rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to the drawings in the specification, the invention provides a technical scheme that: a large travel steering column comprising: a housing 100, an inner column tube 300, a steering shaft 200, a length adjustment mechanism 400, and a steering column bracket 700; the shell is provided with an avoidance groove 101; the inner column 300 comprises a first inner column 301 and a second inner column 302, the first inner column 301 is provided with a length adjusting guide slot 3011, the inner column 300 is arranged in the shell 100, and the second inner column 302 is arranged in the first inner column 301; the steering shaft 200 is installed in the inner column tube 300 and rotates in the inner column tube 300; the length adjusting mechanism 400 is connected with the shell 100, the length adjusting mechanism 400 passes through the avoiding groove 101 and is connected with the first inner column tube 301, the length adjusting mechanism 400 passes through the avoiding groove 101 and the length adjusting guide groove 3011 and is connected with the second inner column tube 302, and the length adjusting mechanism 400 drives the first inner column tube 301 to correspondingly stretch and retract in the shell 100 and simultaneously drives the second inner column tube 302 to correspondingly stretch and retract in the first inner column tube 301; the steering column bracket 700 is fixedly coupled to the housing 100.
In the above embodiment, when the steering wheel height needs to be adjusted, the length adjustment mechanism 400 drives the first inner column tube 301 to correspondingly move in a telescopic manner in the housing 100, and simultaneously drives the second inner column tube 302 to correspondingly move in a telescopic manner in the first inner column tube 301; the second inner column tube 302 pushes the steering shaft 200 to slide to complete the steering wheel length adjustment; the length adjusting mechanism 400 drives the first inner column tube 301 and the second inner column tube 302 respectively, the length adjusting mechanism 400 drives the first inner column tube 301 and the second inner column tube 302 to stretch and retract simultaneously, so that the coaxial stepping adjusting mechanism is realized, each section of steering column tube can be adjusted simultaneously, compared with a section of steering column with the same adjusting stroke, the adjusting speed is faster under the condition of the same motor rotating speed, the height adjusting time of the steering wheel is ensured not to be too long after the adjusting stroke is increased, and the problems that the assembly length is too long and the adjusting speed of the large-stroke steering column is slow due to the traditional design and manufacture of the large-stroke steering column are solved.
Optionally, the length adjustment mechanism 400 includes:
a drive mechanism, the drive mechanism and the housing 100;
the adjusting screw rod 403, the driving mechanism is connected with the adjusting screw rod 403 and can drive the adjusting screw rod 403 to rotate;
the adjusting screw 404 is sleeved on the adjusting screw 403, and the internal thread of the adjusting screw 404 is correspondingly arranged with the external thread of the adjusting screw 403;
an internal thread wire tube 405, wherein the internal thread wire tube 405 is sleeved on the adjusting screw rod 403, and an internal thread of the internal thread wire tube 405 is correspondingly arranged with an external thread of the adjusting screw rod 403;
the first inner column tube 301 is provided with a length adjusting guide groove 3011, the adjusting nut 404 passes through the avoiding groove 101 and is connected with the first inner column tube 301, and the inner thread tube 405 passes through the avoiding groove 101 and the length adjusting guide groove 3011 and is connected with the second inner column tube 302.
In the above embodiment, since the adjusting screw 403 of the large-stroke steering column is long, if the adjusting screw 404 is used alone for adjustment, the meshing distance between the adjusting screw 403 and the adjusting screw 404 is short, and there is a risk that the adjusting screw 404 and the adjusting screw 403 shake during adjustment, so that the stability is poor; if the internal thread tube 405 is used singly for adjustment, the matching length of the adjusting screw 403 and the internal thread tube 405 is longer, the shape and position tolerance such as straightness and the like are not easy to control during part processing, and the problems of difficult assembly, large clearance and abnormal sound during adjustment and the like can be caused; the coaxial stepping driving mechanism adopts the adjusting screw 404 and the internal thread screw tube 405 to be synchronously matched with the adjusting screw 403, and two matching points are arranged between the driving mechanism and the adjusting screw 403, so that the stability of the structure is improved, and the problem of difficult assembly caused by overlong matching dimensions of the internal thread screw tube 405 and the adjusting screw 403 and unmatched straightness is also avoided.
Optionally, the driving mechanism includes:
a length adjustment motor 401;
the turbine worm reduction mechanism 402, the turbine worm reduction mechanism 402 is connected with the housing 100, the turbine worm reduction mechanism 402 is in driving connection with the length adjustment motor 401, and the turbine worm reduction mechanism 402 is connected with the adjustment screw 403.
Optionally include
A first bracket 406, the first bracket 406 being connected to the adjusting nut 404;
a first bracket mounting hole 3012, wherein the first bracket 406 passes through the avoidance groove 101 and is connected with the first bracket mounting hole 3012;
the second bracket 407 is connected to the second inner column tube 302 through the avoidance groove 101 and the length adjustment guide groove 3011, and the second bracket 407 is connected to the internally threaded wire tube 405.
Optionally, the adjusting screw 403 includes:
a first adjusting portion 4031, in which the adjusting nut 404 is disposed;
a second adjusting portion 4032, in which the internally threaded wire tube 405 is provided;
a limiting polish rod 4033, wherein the limiting polish rod 4033 is arranged between the first adjusting part 4031 and the second adjusting part 4032, and the adjusting screw 403 drives the adjusting screw 404 to move to the limiting polish rod 4033, and the driving mechanism stops working;
when the adjusting screw 403 rotates, the moving distance of the adjusting screw 404 on the first adjusting portion in unit time is smaller than the moving distance of the internal thread screw tube 405 on the second adjusting portion, when the adjusting screw 404 is near the bottom end of the adjusting screw 403 of the driving mechanism, the connection part of the internal thread screw tube 405 and the second internal column tube 302 is located near one end of the driving mechanism of the length adjusting guide groove 3011, and when the adjusting screw 404 is located at the position of the limiting polish rod 4033, the connection part of the internal thread screw tube 405 and the second internal column tube 302 is located far away from one end of the driving mechanism of the length adjusting guide groove 3011.
In the above embodiment, since the first adjusting portion 4031 and the second adjusting portion 4032 are designed to have different thread specifications, when the adjusting screw 403 rotates, the adjusting screw 404 and the female screw 405 move synchronously on the adjusting screw 403 in a unit time, but the displacement of their relative movements is different, and the displacement of the female screw 405 is larger than the displacement of the adjusting screw 404, so that when the first inner column 301 extends from the housing 100, the second inner column 302 extends from the first inner column, and similarly, when the first inner column 301 retracts into the housing 100, the second inner column 302 retracts into the first inner column synchronously.
Optionally, a control mechanism 800 is further included, the control mechanism 800 including:
a controller 801 for controlling the operation of the length adjustment motor 401;
the extension limiter 802 is triggered when the adjusting nut 404 moves to the limit polish rod 4033, the extension limiter 802 sends a limit signal, the controller 801 receives the limit signal and generates a control instruction, and the control instruction controls the length adjusting motor 401 to stop working;
the shortening limiter 803 is triggered when the adjusting screw 404 moves to the joint of the adjusting screw 403 and the worm and gear speed reducing mechanism 402, the shortening limiter 803 sends out a limiting signal, the controller 801 receives the limiting signal and generates a control instruction, and the control instruction controls the length adjusting motor 401 to stop working;
the expansion switch 804 may send an expansion signal or a shortening signal, and when the controller 801 receives the expansion signal or the shortening signal, an expansion instruction or a shortening instruction is generated, and the expansion instruction or the shortening instruction may control the length adjusting motor 401 to rotate forward or reverse, so as to drive the adjusting screw 403 to rotate forward or reverse, and drive the adjusting screw 404 and the internal thread tube 405 to move in a direction away from the driving mechanism or move close to the driving mechanism at the same time.
In the above embodiment, when the steering wheel height needs to be adjusted, the driver adjusts by controlling the steering column controller, and when the length adjusting motor 401 receives a signal, starts to output torque, and drives the adjusting screw 403 to rotate by reducing the speed and increasing the torque through the worm and gear reducing mechanism 402, the adjusting screw 403 drives the adjusting screw 404 and the internal thread screw tube 405 to slide simultaneously, so as to drive the first inner column tube 301 and the second inner column tube 302 to slide. The second inner tube 302 pushes the upper tube 201 to slide to complete the steering wheel length adjustment. If no soft limit exists, when the adjusting screw 404 slides to the position where no thread exists at the tail end of the adjusting screw 403, the length adjusting hard limit is reached, and the motor stops working.
Optionally, a collapsing mechanism 600 is further included, where the collapsing mechanism 600 is disposed on the first inner pillar 301 and the second inner pillar 302, and when the collision occurs and the steering wheel is pressed, the second inner pillar 302 collapses into the first inner pillar 301.
Optionally, the crush mechanism 600 includes a second bracket 407 and a crush guide groove 601, where the crush guide groove 601 is gradually narrowed from one end penetrating through the second bracket 407 to the other end, a portion of the second bracket 407 penetrating through the guide groove 601 is in interference fit with the guide groove 601, and when the extending end of the second inner pillar 302 is stressed beyond the crush peak force, the portion of the second bracket 407 penetrating through the guide groove 601 extrudes and deforms the gradually narrowed inner wall of the crush guide groove 601 and extrudes into the gradually narrowed region of the crush guide groove 601.
In the above embodiment, when the vehicle collides with the steering wheel, the steering column needs to be passively collapsed to protect the driver, and when the collision force is transmitted to the steering column upper shaft 201 through the steering wheel, the length-adjusting second bracket 407 and the collapse structure hole 601 generate a relative movement trend, and when the collision force exceeds the collapse peak force, the length-adjusting second bracket 407 extrudes and deforms the collapse structure hole into the collapse structure Kong Changkong region to realize the collapse function.
Optionally, the steering shaft 200 includes:
an upper pipe 201, wherein a multi-tooth spline 2011 is arranged at one end of the upper pipe 201, and the multi-tooth spline 2011 is connected with a steering wheel;
the lower shaft 202 is connected with the upper pipe 201 through a spline, and the lower shaft 202 is provided with a nylon injection molding layer 2021.
In another aspect, there is provided a vehicle comprising a large travel steering column as claimed in any one of the preceding claims.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A large travel steering column, comprising:
a housing (100) provided with a relief groove (101);
the inner column tube (300), the inner column tube (300) comprises a first inner column tube (301) and a second inner column tube (302), the first inner column tube (301) is provided with a length adjusting guide groove (3011), the inner column tube (300) is arranged in the shell (100), and the second inner column tube (302) is arranged in the first inner column tube (301);
a steering shaft (200), the steering shaft (200) being mounted within the inner column tube (300) and rotating within the inner column tube (300);
the length adjusting mechanism (400) is connected with the shell (100), the length adjusting mechanism (400) penetrates through the avoidance groove (101) to be connected with the first inner column tube (301), the length adjusting mechanism (400) penetrates through the avoidance groove (101) and the length adjusting guide groove (3011) to be connected with the second inner column tube (302), and the length adjusting mechanism (400) drives the first inner column tube (301) to correspondingly stretch in the shell (100) and simultaneously drives the second inner column tube (302) to correspondingly stretch in the first inner column tube (301);
and the steering column support (700) is fixedly connected with the shell (100).
2. The large stroke steering column according to claim 1, wherein the length adjustment mechanism (400) comprises:
a drive mechanism, the drive mechanism being associated with the housing (100);
the driving mechanism is connected with the adjusting screw (403) and can drive the adjusting screw (403) to rotate;
the adjusting screw (404), the adjusting screw (404) is sleeved on the adjusting screw rod (403), and the internal thread of the adjusting screw (404) is correspondingly arranged with the external thread of the adjusting screw rod (403);
the internal thread wire tube (405), the internal thread wire tube (405) is sleeved on the adjusting screw rod (403), and the internal thread of the internal thread wire tube (405) is correspondingly arranged with the external thread of the adjusting screw rod (403);
the first inner column tube (301) is provided with a length adjusting guide groove (3011), the adjusting nut (404) penetrates through the avoidance groove (101) to be connected with the first inner column tube (301), and the inner thread tube (405) penetrates through the avoidance groove (101) and the length adjusting guide groove (3011) to be connected with the second inner column tube (302).
3. The large travel steering column of claim 2, wherein the drive mechanism comprises:
a length adjustment motor (401);
the turbine worm speed reducing mechanism (402), turbine worm speed reducing mechanism (402) with casing (100) are connected, turbine worm speed reducing mechanism (402) with length adjustment motor (401) drive connection, turbine worm speed reducing mechanism (402) with accommodate the lead screw (403) and be connected.
4. A large travel steering column according to claim 2 or claim 3, comprising
A first bracket (406), the first bracket (406) being connected with the adjusting nut (404);
a first bracket mounting hole (3012), wherein the first bracket (406) passes through the avoidance groove (101) and is connected with the first bracket mounting hole (3012);
the second support (407) penetrates through the avoidance groove (101) and the length adjustment guide groove (3011) to be connected with the second inner column tube (302), and the second support (407) is connected with the inner thread wire tube (405).
5. A large travel steering column according to claim 2, characterized in that the adjusting screw (403) comprises:
a first adjustment unit (4031) to which the adjustment screw (404) is provided;
a second adjusting portion (4032) to which the internally threaded wire tube (405) is provided;
the limiting polished rod (4033), the limiting polished rod (4033) is arranged between the first adjusting part (4031) and the second adjusting part (4032), and the adjusting screw rod (403) drives the adjusting screw nut (404) to move to the limiting polished rod (4033), and the driving mechanism stops working;
when the adjusting screw rod (403) rotates, the moving distance of the adjusting screw nut (404) on the first adjusting part in unit time is smaller than the moving distance of the internal thread screw tube (405) on the second adjusting part, when the adjusting screw nut (404) is close to the bottom end of the adjusting screw rod (403) of the driving mechanism, the connecting part of the internal thread screw tube (405) and the second internal column tube (302) is located close to one end of the driving mechanism, and when the adjusting screw nut (404) is located at the position of the limiting polished rod (4033), the connecting part of the internal thread screw tube (405) and the second internal column tube (302) is located away from one end of the driving mechanism.
6. The large travel steering column according to claim 5, further comprising a control mechanism (800), the control mechanism (800) comprising:
-a controller (801) for controlling the action of the length adjustment motor (401);
the extension limiter (802), when the adjusting screw (404) moves to the limiting polished rod (4033), the extension limiter (802) is triggered, the extension limiter (802) sends out a limiting signal, the controller (801) receives the limiting signal and generates a control instruction, and the control instruction controls the length adjusting motor (401) to stop working;
the device comprises a shortening limiter (803), wherein when the adjusting screw (404) moves to the joint of the adjusting screw rod (403) and the worm and gear speed reducing mechanism (402), the shortening limiter (803) is triggered, the shortening limiter (803) sends out a limiting signal, and the controller (801) receives the limiting signal and generates a control instruction, and the control instruction controls the length adjusting motor (401) to stop working;
the telescopic switch (804), telescopic switch (804) can send out extension signal or shorten the signal, when controller (801) received extension signal or shorten the signal, generate extension instruction or shorten the instruction, extension instruction or shorten the instruction can control length adjustment motor (401) forward rotation or reverse rotation to drive adjusting screw (403) forward rotation or reverse rotation, make drive adjusting screw (404) and internal thread silk pipe (405) simultaneously to keeping away from actuating mechanism direction removal or be close to actuating mechanism direction removal.
7. The large travel steering column of claim 4, further comprising a crush mechanism (600), the crush mechanism (600) being disposed on the first inner column tube (301) and the second inner column tube (302), the second inner column tube (302) collapsing into the first inner column tube (301) upon impact and the steering wheel being squeezed.
8. The large-stroke steering column according to claim 7, wherein the collapsing mechanism (600) comprises a second bracket (407) and a collapsing guide groove (601), the collapsing guide groove (601) is gradually narrowed from one end penetrating through the second bracket (407) to the other end, a portion of the second bracket (407) penetrating through the guide groove (601) is in interference fit with the inside of the guide groove (601), and when the extending end of the second inner column tube (302) is stressed beyond the collapsing peak force, the portion of the second bracket (407) penetrating through the guide groove (601) deforms the gradually narrowed inner wall of the collapsing guide groove (601) by extrusion, and the portion of the second bracket is extruded into the gradually narrowed region of the collapsing guide groove (601).
9. The large stroke steering column according to claim 1, wherein the steering shaft (200) comprises:
an upper pipe (201), wherein a multi-tooth spline (2011) is arranged at one end of the upper pipe (201), and the multi-tooth spline (2011) is connected with a steering wheel;
the lower shaft (202) is connected with the upper pipe (201) through a spline, and the lower shaft (202) is provided with a nylon injection molding layer (2021).
10. A vehicle comprising a large travel steering column according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310020921.3A CN116062019A (en) | 2023-01-06 | 2023-01-06 | Large-stroke steering column and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310020921.3A CN116062019A (en) | 2023-01-06 | 2023-01-06 | Large-stroke steering column and vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116062019A true CN116062019A (en) | 2023-05-05 |
Family
ID=86183245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310020921.3A Pending CN116062019A (en) | 2023-01-06 | 2023-01-06 | Large-stroke steering column and vehicle with same |
Country Status (1)
| Country | Link |
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| CN (1) | CN116062019A (en) |
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| JP2008006953A (en) * | 2006-06-29 | 2008-01-17 | Nsk Ltd | Impact absorbing device of steering device with electric position adjustment mechanism |
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| CN108045428A (en) * | 2017-12-08 | 2018-05-18 | 芜湖世特瑞转向系统有限公司 | Electronic four-way adjustable steering pipe column |
| CN110015337A (en) * | 2018-01-08 | 2019-07-16 | 操纵技术Ip控股公司 | Telescoping steering column |
| CN216580678U (en) * | 2021-12-27 | 2022-05-24 | 吉林世宝机械制造有限公司 | Long-stroke telescopic adjusting steering column |
| CN216580676U (en) * | 2021-12-27 | 2022-05-24 | 吉林世宝机械制造有限公司 | Length adjustment guide structure of long flexible regulation steering column |
| CN218172381U (en) * | 2022-08-05 | 2022-12-30 | 吉林世宝机械制造有限公司 | Wire-controlled steering long-stroke adjusting steering column |
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2023
- 2023-01-06 CN CN202310020921.3A patent/CN116062019A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008006953A (en) * | 2006-06-29 | 2008-01-17 | Nsk Ltd | Impact absorbing device of steering device with electric position adjustment mechanism |
| CN107985387A (en) * | 2017-12-08 | 2018-05-04 | 芜湖世特瑞转向系统有限公司 | Suitable for the nut assembly of electronic four-way adjustable steering pipe column angle regulator |
| CN108045428A (en) * | 2017-12-08 | 2018-05-18 | 芜湖世特瑞转向系统有限公司 | Electronic four-way adjustable steering pipe column |
| CN110015337A (en) * | 2018-01-08 | 2019-07-16 | 操纵技术Ip控股公司 | Telescoping steering column |
| CN216580678U (en) * | 2021-12-27 | 2022-05-24 | 吉林世宝机械制造有限公司 | Long-stroke telescopic adjusting steering column |
| CN216580676U (en) * | 2021-12-27 | 2022-05-24 | 吉林世宝机械制造有限公司 | Length adjustment guide structure of long flexible regulation steering column |
| CN218172381U (en) * | 2022-08-05 | 2022-12-30 | 吉林世宝机械制造有限公司 | Wire-controlled steering long-stroke adjusting steering column |
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