CN114179899A - Slippage and crushing integrated steering column and automobile - Google Patents
Slippage and crushing integrated steering column and automobile Download PDFInfo
- Publication number
- CN114179899A CN114179899A CN202111290729.3A CN202111290729A CN114179899A CN 114179899 A CN114179899 A CN 114179899A CN 202111290729 A CN202111290729 A CN 202111290729A CN 114179899 A CN114179899 A CN 114179899A
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- steering column
- groove
- raceway groove
- crush
- inner pipe
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/19—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
Abstract
The invention discloses a sliding and crushing integrated steering column and an automobile, which comprise: the outer periphery of the inner pipe is provided with an inner pipe raceway groove, and the groove wall of the inner pipe raceway groove is provided with a convex part; the inner circumference of the outer pipe is provided with an outer pipe raceway groove, and the outer pipe raceway groove can be matched with the inner pipe raceway groove to form an accommodating cavity; the needle roller is movably arranged in the accommodating cavity, interferes with the convex part and can crush the convex part when the thrust reaches a set value; this steering column optimizes the sliding fit between the outer tubular column in interior through the setting of kingpin, improves the operation and feels to the bellying that sets up on the cell wall through inner tube raceway groove and the cooperation of kingpin realize the design of the conquassation integral type that slides, improve the security of energy-absorbing effect and car.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to a sliding and crushing integrated steering column and an automobile.
Background
With the application of new technology, functions on automobiles are more and more, and function integration is imperative.
The steering column is used as an important part of a steering system, has a plurality of functions, and is designed and developed on the basis of functions required to be met in each structure, wherein the column regulating force influencing the operation comfort of customers and the column crushing characteristic influencing the collision safety are important functions of the column. The matching of the inner pipe and the outer pipe during axial adjustment has great influence on the axial adjustment force, but the inner pipe and the outer pipe are basically separated in the existing design, the difference of the matching state is large, and the adjustment hand feeling is influenced. The pipe column crushing peak value is mainly to provide peak crushing force through the crushing of the injection molding strip in the insert, the batch difference of injection molding materials, such as temperature and pressure, is influenced, and the debugging is required to be performed every time of injection molding, although the crushing result difference is large every time, the tolerance range is required to be enlarged to ensure the qualified rate. When the existing pipe column is adjusted, the handle is firstly loosened, the inner pipe and the outer pipe of the pipe column are separated, the outer pipe is attached to the mounting bracket, and the hand feeling is unsmooth when the pipe column is adjusted due to the uneven left-right matching of the inner pipe and the outer pipe of the pipe column and the bracket; the pipe column crushing energy absorption structure mainly provides peak force for injection molding, and crushing force control tolerance is larger due to the influence of an injection molding process.
Disclosure of Invention
The invention aims to provide a sliding and crushing integrated steering column and an automobile aiming at the defects in the prior art, the steering column optimizes the sliding fit between an inner pipe and an outer pipe through the arrangement of roller pins, improves the operation hand feeling, realizes the sliding and crushing integrated design through the matching of a convex part arranged on the groove wall of an inner pipe raceway groove and the roller pins, and improves the energy absorption effect and the safety of the automobile.
In order to achieve the above object, the present invention provides a slip-crush integrated steering column including:
the outer periphery of the inner pipe is provided with an inner pipe raceway groove, and the groove wall of the inner pipe raceway groove is provided with a convex part;
the inner circumference of the outer pipe is provided with an outer pipe raceway groove, and the outer pipe raceway groove can be matched with the inner pipe raceway groove to form an accommodating cavity;
the needle roller is movably arranged in the accommodating cavity, interferes with the lug boss and can crush the lug boss when the thrust force reaches a set value.
Optionally, the protruding portions are disposed at two ends of the needle roller, and a sliding gap is left between the protruding portions and the needle roller.
Optionally, the protrusions are symmetrically disposed on a groove wall of the inner pipe raceway groove along a center line of the inner pipe raceway groove.
Optionally, one end of the outer pipe raceway groove is provided with a sliding groove communicated with the outer pipe raceway groove, and a groove wall of the outer pipe raceway groove is connected with a groove wall of the sliding groove through a tapered first chamfer.
Optionally, a second chamfer is arranged at one end of the needle roller close to the first chamfer, and the second chamfer is matched with the first chamfer.
Optionally, the accommodating cavity is provided in plurality.
Optionally, the raised portion is barbed.
Optionally, one side of the protrusion is provided with a groove, and the volume of the protrusion is larger than that of the groove.
Optionally, the set value is a peak crushing force.
The invention also provides an automobile which comprises the sliding and crushing integrated steering column.
The invention provides a sliding and crushing integrated steering column and an automobile, which have the beneficial effects that:
1. the steering column optimizes the sliding fit between the inner and outer columns through the arrangement of the roller pins, realizes good fit of the inner and outer tubes of the column, and improves the operation hand feeling;
2. the steering column realizes the sliding and crushing integrated design through the matching of the convex parts arranged on the groove walls of the inner pipe raceway grooves and the rolling needles, and improves the energy absorption effect and the safety of an automobile;
3. the steering column is convenient to ensure that the steering column has stable peak crushing force and stable sliding force through the design of the convex part.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a front view schematic diagram of a slip-collapse integrated steering column according to an embodiment of the present invention.
Fig. 2 shows a side view of the structural diagram of fig. 1.
Fig. 3 shows an enlarged schematic view of the structure of fig. 1.
Fig. 4 shows an enlarged schematic view of the structure of fig. 1.
Fig. 5 is a cross-sectional view showing a fitted state of a slip-crush integrated steering column according to an embodiment of the present invention.
Fig. 6 shows a schematic diagram of a matching structure of a first chamfer and a second chamfer of a slip-crush integral steering column according to an embodiment of the invention.
Fig. 7 shows a schematic structural view of an outer tube of a slip-crush integrated steering column according to an embodiment of the present invention.
Description of reference numerals:
1. an inner tube; 2. an inner tube raceway groove; 3. a boss portion; 4. an outer tube; 5. an outer pipe raceway groove; 6. rolling needles; 7. a sliding groove; 8. and (4) a groove.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a sliding and crushing integrated steering column, which comprises:
the outer periphery of the inner pipe is provided with an inner pipe raceway groove, and the groove wall of the inner pipe raceway groove is provided with a convex part;
the inner circumference of the outer pipe is provided with an outer pipe raceway groove, and the outer pipe raceway groove can be matched with the inner pipe raceway groove to form an accommodating cavity;
the needle roller is movably arranged in the accommodating cavity, interferes with the convex part and can crush the convex part when the thrust reaches a set value.
Specifically, most of the existing pipe column crushing structures generate the maximum crushing force for shearing of injection molding strips, and the peak tolerance of the crushing force is large (plus or minus 750N) due to the influence of parameters such as injection molding temperature, material characteristics, injection molding hole size, heat preservation time, injection molding pressure and the like during injection molding, so that the control of product consistency is not facilitated, and the actual detection can be realized only by crushing (damage); according to the steering column provided by the invention, the roller pins are arranged between the inner pipe and the outer pipe, the sliding fit state between the inner pipe and the outer pipe is optimized, the smooth hand feeling is provided, the customer satisfaction degree is improved, the crushing of the roller pins on the convex parts is realized, the accuracy and consistency of the peak crushing force and the stable crushing force can be ensured by ensuring the structural size accuracy of the convex parts through a die or machining for the design of the crushing force, the structural size design is convenient, the control tolerance of the crushing force is reduced, the support is provided for accurately evaluating the collision result, the optimal collision result is further reached, the safe collision score of the whole vehicle is improved, and the safety performance of the vehicle is improved.
Optionally, the protruding portions are disposed at two ends of the needle roller, and a sliding gap is left between the protruding portions and the needle roller.
Specifically, the convex part at the downstream of the moving path of the outer tube pushing the roller pins can interfere with the roller pins when in collision and can be crushed when the thrust applied to the roller pins reaches a set value, so that a crushing force peak value is obtained, and the convex part at the upstream of the moving path of the outer tube pushing the roller pins when in collision can limit the roller pins when in no collision, so that the roller pins are always positioned between the two convex parts, and the roller pins are prevented from greatly shifting when the steering column is normally adjusted.
Alternatively, the protrusions are symmetrically disposed on the groove wall of the inner pipe raceway groove along the center line of the inner pipe raceway groove.
Specifically, the bulges symmetrically arranged along the central line of the inner tube raceway groove are adopted, so that the stress of the two sides of the same roller pin in the accommodating cavity can be balanced when the roller pin crushes the bulges, and the roller pin is prevented from deviating when the bulges are crushed.
Optionally, one end of the outer pipe raceway groove is provided with a sliding groove communicated with the outer pipe raceway groove, and a groove wall of the outer pipe raceway groove is connected with a groove wall of the sliding groove through a tapered first chamfer.
Specifically, the inner space of the sliding groove is smaller than that of the outer tube raceway groove, the roller pins reach the end of the inner tube raceway groove after the roller pins crush the protruding portions and completely slide over the crushed protruding portions, at the moment, because the energy absorption process of collision is still carried out, the roller pins are squeezed into the sliding groove, the roller pins still generate stable sliding force with respect to the sliding groove in a sliding manner, and the collision energy absorption can be continuously maintained.
In other examples, the sliding groove may also be disposed at the end of the inner tube raceway groove, and similarly, after the roller pin crushes the protrusion and completely slides over the crushed protrusion, the roller pin reaches the boundary between the inner tube raceway groove and the sliding groove, and since the energy absorption process of the collision is still performed, the roller pin is squeezed into the sliding groove, and the relative sliding between the roller pin and the sliding groove still generates a stable sliding force, so that the energy absorption of the collision can be continuously maintained.
Optionally, one end of the needle roller close to the first chamfer is provided with a second chamfer, and the second chamfer is matched with the first chamfer.
Specifically, when the first chamfer and the second chamfer are attached, a certain force can be transmitted, and a guiding effect can be achieved when the stress reaches a certain value, so that the roller pins can be pressed into the sliding grooves to generate relative sliding of large sliding force, and an energy absorption effect is achieved.
Optionally, the accommodating chamber is provided in plurality.
Specifically, every holds intracavity and sets up a kingpin, and when the collision, a plurality of kingpins carry out the conquassation energy-absorbing simultaneously and the energy-absorbing that slides like this, and the power that the collision transmission was come is equallyd divide by a plurality of kingpins.
Optionally, the projections are barbed.
Specifically, the force when the needle roller presses the boss from one direction is greater than the force pressing the boss from the other direction.
Optionally, one side of the protrusion is provided with a groove, and the volume of the protrusion is larger than that of the groove.
Specifically, when the roller pins crush the convex parts, the convex parts are crushed when the crushing force is at a peak value, one part of the convex parts enter the grooves, and the other part of the convex parts are still exposed, so that the stable crushing force formed by the roller pins and the exposed convex parts is still kept between the inner pipe and the outer pipe when the roller pins continue to slide.
Optionally, the set point is a peak in crushing force.
Specifically, in order to generate the crushing force meeting the technical requirements, the design concept can be as follows:
1. maximum crushing force:
1.1, the maximum crushing force requirement is met by designing the size of the convex part;
1.2, if the maximum crushing force requirement is large, a plurality of roller pins can be designed to equally divide the maximum crushing force;
2. stable crushing force:
2.1, designing the size (such as the size or depth of a groove) of the volume of the bulge still protruding out of the groove wall of the inner pipe raceway after the bulge is crushed, and meeting the requirement of stable crushing force;
2.2 the size of the sliding groove is designed to meet the requirement of stable crushing force.
The invention also provides an automobile which comprises the sliding and crushing integrated steering column.
Examples
As shown in fig. 1 to 7, the present invention provides a slip-crush integrated steering column including:
an inner pipe 1, wherein an inner pipe raceway groove 2 is formed in the periphery of the inner pipe 1, and a protruding part 3 is formed in the groove wall of the inner pipe raceway groove 2;
the inner circumference of the outer pipe 4 is provided with an outer pipe rolling groove 5, and the outer pipe rolling groove 5 can be matched with the inner pipe rolling groove 2 to form an accommodating cavity;
and the needle roller 6 is movably arranged in the accommodating cavity, and the needle roller 6 is interfered with the lug boss 3 and can crush the lug boss 3 when the thrust received by the needle roller reaches a set value.
In the present embodiment, the bosses 3 are provided at both ends of the needle rollers 6, and a sliding gap is left between the bosses 3 and the needle rollers 6.
In the present embodiment, the protrusions 3 are symmetrically provided on the groove wall of the inner pipe raceway groove 2 along the center line of the inner pipe raceway groove 2.
In the present embodiment, one end of the outer pipe raceway groove 5 is provided with a sliding groove 7 communicating with the outer pipe raceway groove 5, and the groove wall of the outer pipe raceway groove 5 is connected to the groove wall of the sliding groove 7 by a tapered first chamfer.
In this embodiment, one end of the needle roller 6 close to the first chamfer is provided with a second chamfer, and the second chamfer is matched with the first chamfer.
In the present embodiment, the accommodation chamber is provided in plurality.
In the present embodiment, the boss 3 has a barb shape.
In this embodiment, one side of the protrusion 3 is provided with a groove 8, the volume of the protrusion being larger than the volume of the groove.
In the present embodiment, the set value is a peak of the crushing force.
The invention also provides an automobile which comprises the sliding and crushing integrated steering column.
In conclusion, when the slip-crush integrated steering column provided by the invention is used, taking the collision of an automobile as an example: when an automobile collision happens, the outer tube 4 moves axially along the inner tube 1, when the surface of the first chamfer on the outer tube 4 abuts against the surface of the second chamfer on the roller pin 6, the outer tube 4 pushes and the roller pin 6 slides along the accommodating cavity, and when the roller pin 6 presses the bulge 3, the maximum crushing force is generated, namely the peak value of the crushing force; then the outer tube 4 and the roller pins 6 continuously slide downwards, and after the convex parts 3 are pressed into the grooves 8, stable sliding force, namely stable crushing force, is generated between the roller pins 6 and the parts of the convex parts 3 exposed out of the grooves 8; when the roller pins 6 are separated from the convex parts 3, the roller pins 6 enter the sliding groove 7, and because the inner space of the sliding groove 7 is reduced compared with the inner pipe raceway groove 2, stable sliding force is still generated between the roller pins 6 and the groove wall of the sliding groove 7, and the steering column generates a crushing energy absorption function in the process.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. The utility model provides a collapse integral type steering column slides which characterized in that, this steering column includes:
the outer periphery of the inner pipe is provided with an inner pipe raceway groove, and the groove wall of the inner pipe raceway groove is provided with a convex part;
the inner circumference of the outer pipe is provided with an outer pipe raceway groove, and the outer pipe raceway groove can be matched with the inner pipe raceway groove to form an accommodating cavity;
the needle roller is movably arranged in the accommodating cavity, interferes with the lug boss and can crush the lug boss when the thrust force reaches a set value.
2. The slipping crush one-piece steering column according to claim 1, wherein the boss is provided at both ends of the roller pin with a sliding gap left therebetween.
3. The slipping crushing integrated steering column according to claim 1, wherein the protrusions are symmetrically provided on the groove wall of the inner pipe raceway groove along a center line of the inner pipe raceway groove.
4. The slip-crush integrated steering column according to claim 1, wherein one end of the outer tube raceway groove is provided with a slip groove communicating with the outer tube raceway groove, and a groove wall of the outer tube raceway groove is connected to a groove wall of the slip groove by a first tapered chamfer.
5. The slipping crushing integrated steering column according to claim 4, wherein one end of the roller pin near the first chamfer is provided with a second chamfer, and the second chamfer is matched with the first chamfer.
6. The slipping crush integrated steering column according to claim 1, wherein the accommodation chamber is provided in plurality.
7. The slip crush integrated steering column according to claim 1, wherein the boss is barb-shaped.
8. The slip and crush integrated steering column according to claim 7, wherein a groove is provided on one side of the boss, and a volume of the boss is larger than a volume of the groove.
9. The slip-crush integrated steering column according to claim 1, wherein the set value is a peak crush force value.
10. An automobile, characterized by comprising the slip-crush integrated steering column according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111290729.3A CN114179899B (en) | 2021-11-02 | 2021-11-02 | Sliding and crushing integrated steering column and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111290729.3A CN114179899B (en) | 2021-11-02 | 2021-11-02 | Sliding and crushing integrated steering column and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114179899A true CN114179899A (en) | 2022-03-15 |
| CN114179899B CN114179899B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111290729.3A Active CN114179899B (en) | 2021-11-02 | 2021-11-02 | Sliding and crushing integrated steering column and automobile |
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| CN (1) | CN114179899B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05105088A (en) * | 1991-10-16 | 1993-04-27 | Daihatsu Motor Co Ltd | Energy absorption type steering system |
| CN1561300A (en) * | 2001-10-01 | 2005-01-05 | 日本精工株式会社 | Vehicle steering telescopic shaft |
| US20070113701A1 (en) * | 2005-11-21 | 2007-05-24 | Delphi Technologies, Inc. | Energy absorbing apparatus |
| CN101450675A (en) * | 2007-12-03 | 2009-06-10 | 万都株式会社 | Slip joint of steering apparatus for vehicle |
| CN203186401U (en) * | 2013-04-01 | 2013-09-11 | 北汽福田汽车股份有限公司 | Steering column mounting structure and automobile |
| CN205524437U (en) * | 2016-01-28 | 2016-08-31 | 北京汽车股份有限公司 | Car steering column structure, Car steering wheel assembly and car |
| US20170043803A1 (en) * | 2015-08-11 | 2017-02-16 | Yamada Manufacturing Co., Ltd. | Steering apparatus |
| CN106428188A (en) * | 2015-08-11 | 2017-02-22 | 株式会社山田制作所 | Steering device |
| CN206528516U (en) * | 2017-02-22 | 2017-09-29 | 优立昂（上海）汽车零部件科技有限公司 | A kind of steering column of anticollision |
| JP2018184064A (en) * | 2017-04-25 | 2018-11-22 | 株式会社山田製作所 | Steering device |
| CN109533006A (en) * | 2018-12-12 | 2019-03-29 | 安徽江淮汽车集团股份有限公司 | A kind of steering intermediate shaft slipping mechanism |
| CN111247049A (en) * | 2017-10-19 | 2020-06-05 | 蒂森克虏伯普利斯坦股份公司 | Steering shaft for a motor vehicle |
-
2021
- 2021-11-02 CN CN202111290729.3A patent/CN114179899B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05105088A (en) * | 1991-10-16 | 1993-04-27 | Daihatsu Motor Co Ltd | Energy absorption type steering system |
| CN1561300A (en) * | 2001-10-01 | 2005-01-05 | 日本精工株式会社 | Vehicle steering telescopic shaft |
| US20070113701A1 (en) * | 2005-11-21 | 2007-05-24 | Delphi Technologies, Inc. | Energy absorbing apparatus |
| CN101450675A (en) * | 2007-12-03 | 2009-06-10 | 万都株式会社 | Slip joint of steering apparatus for vehicle |
| CN203186401U (en) * | 2013-04-01 | 2013-09-11 | 北汽福田汽车股份有限公司 | Steering column mounting structure and automobile |
| US20170043803A1 (en) * | 2015-08-11 | 2017-02-16 | Yamada Manufacturing Co., Ltd. | Steering apparatus |
| CN106428188A (en) * | 2015-08-11 | 2017-02-22 | 株式会社山田制作所 | Steering device |
| CN205524437U (en) * | 2016-01-28 | 2016-08-31 | 北京汽车股份有限公司 | Car steering column structure, Car steering wheel assembly and car |
| CN206528516U (en) * | 2017-02-22 | 2017-09-29 | 优立昂（上海）汽车零部件科技有限公司 | A kind of steering column of anticollision |
| JP2018184064A (en) * | 2017-04-25 | 2018-11-22 | 株式会社山田製作所 | Steering device |
| CN111247049A (en) * | 2017-10-19 | 2020-06-05 | 蒂森克虏伯普利斯坦股份公司 | Steering shaft for a motor vehicle |
| CN109533006A (en) * | 2018-12-12 | 2019-03-29 | 安徽江淮汽车集团股份有限公司 | A kind of steering intermediate shaft slipping mechanism |
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|---|---|
| CN114179899B (en) | 2023-05-23 |
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