CN113511258A - Prevent top tooth's car steering column and adjust locking mechanism - Google Patents
Prevent top tooth's car steering column and adjust locking mechanism Download PDFInfo
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- CN113511258A CN113511258A CN202110903798.0A CN202110903798A CN113511258A CN 113511258 A CN113511258 A CN 113511258A CN 202110903798 A CN202110903798 A CN 202110903798A CN 113511258 A CN113511258 A CN 113511258A
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- pin shaft
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- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/184—Mechanisms for locking columns at selected positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/19—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
- B62D1/192—Yieldable or collapsible columns
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
Abstract
The invention discloses an anti-tooth jacking automobile steering column adjusting and locking mechanism, which comprises a pin shaft and an adjusting cam pair penetrating through the pin shaft; the device also comprises an axial toothed plate fixed on the upper pipe column body and a radial toothed plate fixed on the mounting bracket; the mounting bracket is fixed with the frame; the axial toothed block can move relative to the pin shaft along the extension direction of the pin shaft and is pressed towards the axial toothed plate through an elastic component I; the radial tooth block can move relative to the pin shaft along the extension direction of the pin shaft, and presses the radial tooth block to the radial tooth plate through the elastic component II. This adjust locking mechanism can effectively eliminate the influence to adjusting locking mechanism when pinion rack and tooth piece take place the apical tooth for its overall structure height does not change, thereby lets the regulation cam to still can rotate to target in place and accomplish to press from both sides tightly, thereby realizes to steering column axial and radial locking function.
Description
Technical Field
The invention relates to an adjusting and locking mechanism of an automobile steering shaft, in particular to an adjusting and locking mechanism of an automobile steering shaft, which can prevent tooth jacking.
Background
Most of the existing automobile steering columns have a steering wheel four-way adjusting function, and the locking and the keeping of the steering wheel by an adjusting mechanism are basic requirements of four-way adjusting of the steering columns in normal use. Under the normal condition, in order to ensure that the position of a steering wheel is fixed after the adjusting mechanism is locked and avoid that the steering column adjusting mechanism cannot loosen and displace in the collision and crumple process to cause that the crumple energy absorption performance deviates from the design curve requirement, a tooth structure is designed and installed on the adjusting mechanism. The steering wheel is free of displacement after the adjusting mechanism is locked through the meshing of the toothed block and the toothed plate. The tooth structure belongs to step locking, and the tooth locking structure is adopted to realize the locking function of the adjusting mechanism by normally meshing and locking the tooth crest to the tooth socket in a locking state.
However, the existing tooth structure has the condition of top teeth (namely, the teeth are not normally meshed with each other, but the tooth tops are opposite to the tooth tops) when the adjusting handle is locked, and the existing adjusting and locking mechanism depends on the lift change of a pair of adjusting cams to realize locking and unlocking. And the lift of the adjusting cam is fixed, if the height of the whole structure of the tooth block and the tooth plate top tooth changes, the adjusting cam cannot rotate to the position to reach the maximum lift, and the locking function cannot be realized by the adjusting locking mechanism under the condition.
Disclosure of Invention
In view of the above, the invention provides an anti-tooth-jacking automobile steering column adjusting and locking mechanism, which can still realize a locking function under the condition that the tooth block and the toothed plate generate tooth jacking.
In order to solve the technical problems, the technical scheme of the invention is that an anti-tooth jacking automobile steering column adjusting and locking mechanism is adopted, and the anti-tooth jacking automobile steering column adjusting and locking mechanism comprises a pin shaft and an adjusting cam pair penetrating through the pin shaft; the device also comprises an axial toothed plate fixed on the upper pipe column body and a radial toothed plate fixed on the mounting bracket; the mounting bracket is fixed with the frame; the axial toothed block can move relative to the pin shaft along the extension direction of the pin shaft and is pressed towards the axial toothed plate through an elastic component I; the radial tooth block can move relative to the pin shaft along the extension direction of the pin shaft, and presses the radial tooth block to the radial tooth plate through the elastic component II.
The principle of the invention is as follows: the root cause that the locking mechanism is adjusted to take place the apical tooth and can not lock is not apical tooth (in fact, even take place the apical tooth as long as can press from both sides tightly still can play the locking effect between tooth piece and the pinion rack), but appear behind the apical tooth because the change of overall structure height makes the adjustment cam to can't rotate to the position and let whole regulation locking device can't press from both sides tightly the result. In the invention, the axial tooth block and the radial tooth block are floatable, and the height of the whole structure can be ensured not to be changed even if the top teeth occur, so that the adjusting cam pair can still rotate to the proper position to ensure that the whole device is clamped.
As an improvement, the locking device also comprises a locking block which is penetrated on the pin shaft; the axial tooth block is fixed with a guide rod I parallel to the pin shaft, the radial tooth block is fixed with a guide rod II parallel to the pin shaft, and the guide rod I and the guide rod II penetrate through the locking block. The locking block is utilized to conveniently arrange the radial tooth block and the axial tooth block, and the radial tooth block and the axial tooth block are synchronous in motion.
As a further improvement, the elastic component I and the elastic component II are both springs, the elastic component I is sleeved on the guide rod I and is located between the axial tooth block and the locking block, and the elastic component II is sleeved on the guide rod II and is located between the radial tooth block and the locking block. The locking is achieved by using a spring as the resilient member so that the tooth block is pressed against the tooth plate.
As another further improvement, a through hole is formed in the mounting bracket, and the guide rod I penetrates through the through hole.
As an improvement, the radial toothed plate is divided into two blocks arranged on two sides of the through hole, and the number of the radial toothed blocks is also two, so that the locking force is improved.
As an improvement, a crumple block is fixed on the upper tube column, and the axial toothed plate is fixed on the crumple block through a crumple shear rivet. When collision occurs, the crumple shear rivet bears shear force, and when the shear force is larger than the strength of the crumple shear rivet, the crumple shear rivet is sheared, so that the steering column is crumpled and absorbs energy.
As an improvement, the crumple block is provided with a crumple slot along the axial direction of the upper tube cylinder, and the axial toothed plate is provided with a crumple pin which extends into the crumple slot and is in interference fit with the crumple slot. The collapse energy absorption is realized through the sliding of the collapse pin in the collapse elongated slot.
As an improvement, the crush cans are divided into sections of different widths. Different vehicle types have different energy absorption requirements and can be realized through the crumple elongated slots with different widths.
As an improvement, one of the adjusting cams in the adjusting cam pair is fixed on the mounting bracket, and an adjusting handle is fixed on the other adjusting cam.
As an improvement, the surfaces of the axial toothed plate and the axial toothed block, which are opposite to each other, are provided with teeth which are axially arranged along the upper pipe column body; and teeth which are radially arranged along the upper pipe cylinder are arranged on the opposite surfaces of the radial toothed plate and the radial toothed block. The axially arranged teeth effect an axial locking and the radially arranged teeth effect a radial locking.
The invention has the advantages that: the steering column adjusting and locking mechanism with the structure can effectively eliminate the influence on the adjusting and locking mechanism when the toothed plate and the toothed block generate the top teeth, so that the overall structure height of the steering column adjusting and locking mechanism is not changed, the adjusting cam can still rotate to the right position to complete clamping, and the axial and radial locking functions of the steering column are realized. The requirement for stable energy absorption characteristic in the collision and collapse process of the steering column is met, and safer collision protection is provided for drivers.
Drawings
Fig. 1 is a schematic view of the appearance structure of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a partially enlarged view of the present invention.
Fig. 4 is a schematic structural diagram of the adjusting cam pair.
FIG. 5 is a schematic view of the structure of the crumple.
Fig. 6 is a schematic view of the adjustment cam pair, where the two adjustment cams are engaged.
Fig. 7 is a schematic view of the adjustment cam pair, in which the teeth of the two adjustment cams interfere with each other.
The labels in the figure are: the device comprises an upper pipe column 1, a collapsing block 2, a locking block 3, a mounting bracket 4, a lower pipe column 5, an adjusting handle 6, a radial toothed plate 7, an axial toothed plate 8, a pin shaft 9, a guide rod I10, a guide rod II11, a collapsing shear rivet 12, an elastic component I13, an axial toothed block 14, an elastic component II15, a radial toothed block 16, an adjusting cam pair 17, a collapsing elongated slot 201, 701 teeth, a collapsing pin 801 and 802 teeth.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the present invention will be further described in detail with reference to the following embodiments.
As shown in fig. 1, the steering column of the present invention includes an upper column body 1 and a lower column body 5 which are nested and can slide relatively, the upper steering column and the lower steering column are respectively disposed in the upper column body 1 and the lower column body 5, and a steering wheel is fixed on the upper steering column. In addition, in the embodiment, the lower tubular column 5 is larger, so the lower tubular column 5 is sleeved outside the upper tubular column 1.
As shown in fig. 1 to 4, the present invention includes a pin 9 and an adjusting cam pair 17 penetrating through the pin 9; the device also comprises an axial toothed plate 8 fixed on the upper pipe column body 1 and a radial toothed plate 7 fixed on the mounting bracket 4; the mounting bracket 4 is fixed with the frame; one of the adjusting cams in the adjusting cam pair 17 is fixed on the mounting bracket 4, and the other adjusting cam is fixed with an adjusting handle 6. The axial toothed block 14 is matched and locked with the axial toothed plate 8, the axial toothed block 14 can move relative to the pin shaft 9 along the extending direction of the pin shaft 9, and the axial toothed block 14 is pressed to the axial toothed plate 8 through an elastic component I13; the radial tooth plate structure further comprises a radial tooth block 16 matched and locked with the radial tooth plate 7, wherein the radial tooth block 16 can move relative to the pin shaft 9 along the extending direction of the pin shaft 9, and the radial tooth block 16 is pressed towards the radial tooth plate 7 through an elastic component II 15. In order to achieve the purposes of axial locking and radial locking, the surfaces of the axial toothed plate 14 and the axial toothed block 8 opposite to each other are provided with mutually engageable teeth 801 arranged along the axial direction of the upper tube cylinder; but radial pinion rack all is provided with along the radial intermeshing's that arranges of upper tube cylinder tooth 701 on the relative one side of radial pinion rack and radial tooth piece.
The adjusting cam pair 17 further comprises two adjusting cams, the two adjusting cams being provided with engageable teeth on their facing end faces. The two adjustment cams are rotatable relative to each other, as shown in fig. 6, and when they are rotated to a state where the teeth are engaged, the lift is minimized. And as shown in fig. 7, the lift is maximized when it is rotated until the teeth interfere with each other. When the lift of the adjusting cam pair 17 is increased, the axial tooth blocks 14 are meshed with the axial tooth plates 8, and the radial tooth blocks 16 are meshed with the radial tooth plates 7 to achieve locking of the steering column. When the lift of the adjusting cam pair 17 is reduced, the axial tooth block 14 and the axial toothed plate 8 are loosened, the radial tooth block 16 and the radial toothed plate 7 are loosened, and at the moment, the upper pipe column body 1 can be axially adjusted. If the axial tooth blocks and 14 or/and the radial tooth blocks 16 and 7 are not meshed in place to generate top teeth in the locking process, when the adjusting cam is rotated, the positions of the axial tooth blocks 14 and the radial tooth blocks 16 can be retreated, so that the adjusting cam pair 17 can still rotate to the position reaching the maximum lift and be stabilized at the position, and the locking purpose is achieved. And as long as the axial or radial movement is generated due to collision, the teeth on the axial tooth block 14 and the radial tooth block 16 naturally slide into the tooth grooves of the axial tooth plate 8 and the radial tooth plate 7 to complete meshing, so that the locking is ensured.
In order to facilitate arrangement and enable the axial tooth block 14 and the radial tooth block 16 to be synchronous, the locking device also comprises a locking block 3 penetrating through the pin shaft 9, and a check ring or a nut is arranged at the end part of the pin shaft 9 and can pull the locking block 3 to move radially; a guide rod I10 parallel to the pin shaft 9 is fixed on the axial tooth block 14, a guide rod II11 parallel to the pin shaft 9 is fixed on the radial tooth block 16, and the guide rod I10 and the guide rod II11 both penetrate through the locking block 3. The guide rod I10 and the guide II11 ensure the moving direction of the axial tooth block 14 and the radial tooth block 16. Of course, the tooth block and the locking block can be directly connected through the elastic component without the guide rod, and the movement direction of the tooth block is difficult and easy to guarantee. In addition, in order to avoid the guide bar I10 and the guide bar II11 from slipping off the locking blocks, a stop ring may be provided at the ends of the guide bar I10 and the guide bar II 11.
Both the elastic component I13 and the elastic component II15 are preferably springs in this embodiment, the elastic component I13 is sleeved on the guide rod I10 and located between the axial tooth block 14 and the locking block 3, and the elastic component II15 is sleeved on the guide rod II11 and located between the radial tooth block 16 and the locking block 3. The elastic component can force the meshing between tooth piece and the pinion rack in the locking, can promote compact heap 3 again when loosening for compact heap 3 drives the tooth piece and breaks away from the pinion rack, avoids causing the obstacle when adjusting upper tube cylinder 1.
The mounting bracket 4 is provided with a through hole, and the guide rod I10 penetrates through the through hole. Radial pinion rack 7 is for dividing two of locating the through-hole both sides, radial tooth piece 16 also is two for improve the locking force.
As shown in fig. 5, a crush block 2 is fixed on the upper tube column 1, and the axial toothed plate 8 is fixed on the crush block 2 by a crush shear rivet 12. The upper edge of the crumple block 2 along the axial direction of the upper tube column 1 is provided with a crumple slot 201, and the axial toothed plate 8 is provided with a crumple pin 801 which extends into the crumple slot 201 and is in interference fit with the crumple slot 201. Crush can 201 can be divided into sections of different widths. In this embodiment, the crush can 201 has two front and rear sections with different widths.
When the locking device works, one of the adjusting cam pairs 17 is rotated through the adjusting handle 6, so that the adjusting cam pair 17 reaches the maximum lift, and the locking block 3 moves radially towards the axis direction of the upper tube column body 1 through the pin shaft 9. The movement of the locking block 3 also drives the axial toothed block 14 and the radial toothed block 16 to move towards the axial toothed plate 8 and the radial toothed plate 7. When the upper pipe column body 1 is moved to the right position, the axial tooth block 14 is meshed with the axial tooth plate 8, and the radial tooth block 16 is meshed with the radial tooth plate 7, so that the upper pipe column body 1 is locked. Once the axial tooth block 14 and the axial toothed plate 8 occur or/and the radial tooth block 16 and the radial toothed plate 7 push teeth, the tooth block retreats under the compression of the toothed plate (at the moment, the tooth block and the toothed plate are tightly abutted by the pretightening force of the elastic component, and the locking force is still generated), so that the height of the whole adjusting mechanism is ensured to be unchanged, and the adjusting cam pair 17 can still reach the maximum lift to realize locking. And in case of collision, the tooth block is displaced under the action of collision force and is successfully meshed with the toothed plate, so that the stability of the upper tube column body 1 is ensured, and the collapse and energy absorption are smoothly completed.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. An anti-tooth-jacking automobile steering column adjusting and locking mechanism comprises a pin shaft and an adjusting cam pair penetrating through the pin shaft; the device also comprises an axial toothed plate fixed on the upper pipe column body and a radial toothed plate fixed on the mounting bracket; the mounting bracket is fixed with the frame; the method is characterized in that: the axial toothed block can move relative to the pin shaft along the extension direction of the pin shaft and is pressed towards the axial toothed plate through an elastic component I; the radial tooth block can move relative to the pin shaft along the extension direction of the pin shaft, and presses the radial tooth block to the radial tooth plate through the elastic component II.
2. The anti-tooth-jacking automobile steering column adjusting and locking mechanism according to claim 1, wherein: the locking block penetrates through the pin shaft; the axial tooth block is fixed with a guide rod I parallel to the pin shaft, the radial tooth block is fixed with a guide rod II parallel to the pin shaft, and the guide rod I and the guide rod II penetrate through the locking block.
3. The anti-tooth-jacking automobile steering column adjusting and locking mechanism according to claim 2, wherein: elastic component I and elastic component II are the spring, elastic component I cover is established on guide bar I and is located between axial tooth piece and the latch segment, elastic component II cover is established on guide bar II and is located between radial tooth piece and the latch segment.
4. The anti-tooth-jacking automobile steering column adjusting and locking mechanism according to claim 2, wherein: the mounting bracket is provided with a through hole, and the guide rod I penetrates through the through hole.
5. The anti-tooth-jacking automobile steering column adjusting and locking mechanism according to claim 4, wherein: the radial pinion rack is for dividing two of locating the through-hole both sides, radial tooth piece also is two.
6. The anti-tooth-jacking automobile steering column adjusting and locking mechanism according to claim 1, wherein: the upper tube column body is fixed with a collapse block, and the axial toothed plate is fixed on the collapse block through a collapse shear rivet.
7. The anti-tooth-jacking automobile steering column adjusting and locking mechanism according to claim 1, wherein: the axial toothed plate is provided with a crumple pin which extends into the crumple slot and is in interference fit with the crumple slot.
8. The anti-tooth-jacking automobile steering column adjusting and locking mechanism according to claim 7, wherein: the crumple slot is divided into a plurality of sections with different widths.
9. The anti-tooth-jacking automobile steering column adjusting and locking mechanism according to claim 1, wherein: one of the adjusting cams in the adjusting cam pair is fixed on the mounting bracket, and the other adjusting cam is fixed with an adjusting handle.
10. The anti-tooth-jacking automobile steering column adjusting and locking mechanism according to claim 1, wherein: the surfaces of the axial toothed plates, which are opposite to the axial toothed blocks, are provided with teeth which are axially distributed along the upper pipe column body; and teeth which are radially arranged along the upper pipe cylinder are arranged on the opposite surfaces of the radial toothed plate and the radial toothed block.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110903798.0A CN113511258A (en) | 2021-08-06 | 2021-08-06 | Prevent top tooth's car steering column and adjust locking mechanism |
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CN202110903798.0A CN113511258A (en) | 2021-08-06 | 2021-08-06 | Prevent top tooth's car steering column and adjust locking mechanism |
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CN202110903798.0A Pending CN113511258A (en) | 2021-08-06 | 2021-08-06 | Prevent top tooth's car steering column and adjust locking mechanism |
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Citations (9)
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US20080178702A1 (en) * | 2005-08-01 | 2008-07-31 | Christian Lutz | Adjustable steering column for a motor vehicle |
CN102666250A (en) * | 2009-12-16 | 2012-09-12 | 蒂森克鲁伯普雷斯塔公司 | Steering column for a motor vehicle |
CN203511751U (en) * | 2013-08-08 | 2014-04-02 | 蒂森克虏伯富奥汽车转向柱(长春)有限公司 | Automobile steering column with energy absorption device |
CN103889820A (en) * | 2011-09-14 | 2014-06-25 | 采埃孚转向机***纳凯姆联合股份公司 | Steering column comprising an improved depth-blocking mechanism |
CN106080743A (en) * | 2016-08-01 | 2016-11-09 | 四川绵阳三力股份有限公司 | A kind of endergonic structure of column assy |
CN206437052U (en) * | 2017-01-18 | 2017-08-25 | 神龙汽车有限公司 | Improve clamping structure of the steering stem shaft to confining force |
WO2018069224A1 (en) * | 2016-10-13 | 2018-04-19 | Thyssenkrupp Presta Ag | Fixing element for a steering column and steering column for a motor vehicle |
CN111301511A (en) * | 2018-12-11 | 2020-06-19 | 富士机工株式会社 | Steering column device |
CN111361632A (en) * | 2018-12-26 | 2020-07-03 | 博世华域转向***有限公司 | Compact type automobile steering column rack structure |
-
2021
- 2021-08-06 CN CN202110903798.0A patent/CN113511258A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080178702A1 (en) * | 2005-08-01 | 2008-07-31 | Christian Lutz | Adjustable steering column for a motor vehicle |
CN102666250A (en) * | 2009-12-16 | 2012-09-12 | 蒂森克鲁伯普雷斯塔公司 | Steering column for a motor vehicle |
CN103889820A (en) * | 2011-09-14 | 2014-06-25 | 采埃孚转向机***纳凯姆联合股份公司 | Steering column comprising an improved depth-blocking mechanism |
CN203511751U (en) * | 2013-08-08 | 2014-04-02 | 蒂森克虏伯富奥汽车转向柱(长春)有限公司 | Automobile steering column with energy absorption device |
CN106080743A (en) * | 2016-08-01 | 2016-11-09 | 四川绵阳三力股份有限公司 | A kind of endergonic structure of column assy |
WO2018069224A1 (en) * | 2016-10-13 | 2018-04-19 | Thyssenkrupp Presta Ag | Fixing element for a steering column and steering column for a motor vehicle |
CN206437052U (en) * | 2017-01-18 | 2017-08-25 | 神龙汽车有限公司 | Improve clamping structure of the steering stem shaft to confining force |
CN111301511A (en) * | 2018-12-11 | 2020-06-19 | 富士机工株式会社 | Steering column device |
CN111361632A (en) * | 2018-12-26 | 2020-07-03 | 博世华域转向***有限公司 | Compact type automobile steering column rack structure |
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Application publication date: 20211019 |