CN114179899B - Sliding and crushing integrated steering column and automobile - Google Patents
Sliding and crushing integrated steering column and automobile Download PDFInfo
- Publication number
- CN114179899B CN114179899B CN202111290729.3A CN202111290729A CN114179899B CN 114179899 B CN114179899 B CN 114179899B CN 202111290729 A CN202111290729 A CN 202111290729A CN 114179899 B CN114179899 B CN 114179899B
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- groove
- raceway groove
- steering column
- outer tube
- protruding part
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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 slip and crush integrated steering column and an automobile, comprising: an inner pipe, wherein an inner pipe raceway groove is formed in the periphery of the inner pipe, and a protruding part is formed in the groove wall of the inner pipe raceway groove; an outer tube, the inner circumference of which is provided with an outer tube raceway groove, and the outer tube raceway groove can be matched with the inner tube raceway groove to form a containing cavity; the rolling pin is movably arranged in the accommodating cavity, interferes with the protruding part and can crush the protruding part when the received thrust reaches a set value; the steering column optimizes sliding fit between the inner column and the outer column through the arrangement of the roller pins, improves operation handfeel, realizes the design of a sliding and crushing integrated type through the matching of the protruding part arranged on the groove wall of the inner tube raceway groove and the roller pins, and improves energy absorption effect and safety of automobiles.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to a slip and crush integrated steering column and an automobile.
Background
With the application of new technologies, more and more functions are carried out on automobiles, and integration of functions is imperative.
The steering column is an important component of a steering system, and functions of the steering column are numerous, and each structure is designed and developed based on functions to be met, wherein column adjusting force affecting operation comfort of customers and column crushing characteristics affecting collision safety are important functions of the column. The matching of the inner tube and the outer tube has great influence on the axial adjusting force during axial adjustment, and the existing design is basically disconnected between the inner tube and the outer tube, so that the difference of the matching states is large, and the adjustment handfeel is influenced. The pipe column crushing peak value mainly provides peak crushing force through crushing of injection molding strips in the insert, injection molding is affected by temperature and pressure, batch differences of injection molding materials are influenced, debugging is needed when injection molding is carried out each time, and nevertheless, the crushing result difference each time is large, and the tolerance range is enlarged to ensure the qualification 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 not smooth when the pipe column is adjusted due to uneven left-right matching of the inner pipe and the outer pipe of the pipe column and the bracket; the tubular column crushing energy absorbing structure mainly provides peak force for injection molding, and the control tolerance of the crushing force is larger due to the influence of an injection molding process.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a sliding and crushing integrated steering column and an automobile.
In order to achieve the above object, the present invention provides a slip crushing integrated steering column comprising:
an inner pipe, wherein an inner pipe raceway groove is formed in the periphery of the inner pipe, and a protruding part is formed in the groove wall of the inner pipe raceway groove;
an outer tube, an outer tube raceway groove is arranged on the inner circumference of the outer tube, and the outer tube raceway groove can be matched with the inner tube raceway groove to form a containing cavity;
the rolling pin is movably arranged in the accommodating cavity, and the rolling pin interferes with the protruding part and can crush the protruding part when the received thrust reaches a set value.
Optionally, the protruding portion is arranged at two ends of the needle roller, and a sliding gap is reserved between the protruding portion and the needle roller.
Optionally, the protruding portions are symmetrically disposed on the groove wall of the inner tube raceway groove along the center line of the inner tube raceway groove.
Optionally, one end of the outer tube raceway groove is provided with a sliding groove communicated with the outer tube raceway groove, and a groove wall of the outer tube raceway groove is connected with a groove wall of the sliding groove through a tapered first chamfer.
Optionally, the one end that is close to first chamfer of kingpin is provided with the second chamfer, the second chamfer with first chamfer cooperatees.
Optionally, the accommodating cavity is provided with a plurality of accommodating cavities.
Optionally, the protruding portion is barb-shaped.
Optionally, a groove is formed on one side of the protruding portion, and the volume of the protruding portion is larger than that of the groove.
Optionally, the set point is a crushing force peak.
The invention further 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 sliding fit between the inner pipe column and the outer pipe column is optimized through the arrangement of the needle rollers, so that the good fit of the inner pipe column and the outer pipe column is realized, and the operation handfeel is improved;
2. the steering column realizes the design of a slip crushing integrated type through the matching of the protruding part arranged on the groove wall of the inner pipe raceway groove and the needle roller, 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 protruding part.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
Fig. 1 shows a schematic front view of a slip crush integrated steering column according to an embodiment of the present invention.
Fig. 2 shows a schematic side view of the structure 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 shows a schematic cross-sectional structure of a slip crush integrated steering column in accordance with an embodiment of the present invention.
Fig. 6 shows a schematic diagram of the mating structure of a first chamfer and a second chamfer of a slip crush integral steering column according to an embodiment of the present 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.
Reference numerals illustrate:
1. an inner tube; 2. an inner tube raceway groove; 3. a boss; 4. an outer tube; 5. an outer tube raceway groove; 6. needle roller; 7. a slip groove; 8. a groove.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to 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 present invention provides a slip crush integrated steering column comprising:
an inner pipe, wherein an inner pipe raceway groove is formed in the periphery of the inner pipe, and a protruding part is formed in the groove wall of the inner pipe raceway groove;
an outer tube, the inner circumference of which is provided with an outer tube raceway groove, and the outer tube raceway groove can be matched with the inner tube raceway groove to form a containing cavity;
the rolling needle is movably arranged in the accommodating cavity, interferes with the protruding part and can crush the protruding part when the received thrust reaches a set value.
Specifically, most of the existing tubular column crushing structures generate maximum crushing force due to shearing of injection molding strips, and the crushing force peak tolerance is larger (+/-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 the consistency of products is not facilitated, and the actual detection can be realized only by crushing (damage); the steering column provided by the invention has the advantages that the rolling pin is arranged between the inner pipe and the outer pipe, the sliding fit state between the inner pipe and the outer pipe is optimized, smooth handfeel is provided, customer satisfaction is improved, the crushing force peak value and the precision of stable crushing force are improved through the rolling pin on the protruding part, the structural size precision of the protruding part is ensured through a die or machining for the design of the crushing force, the accuracy and consistency of the crushing force peak value and the stable crushing force can be ensured, the structural size design is facilitated, the crushing force control tolerance is reduced, support is provided for accurately evaluating the collision result, the optimal collision result is further achieved, the safety collision score of the whole vehicle is improved, and the safety performance of the vehicle is improved.
Optionally, the protruding portion sets up in the both ends of kingpin, leaves the slip clearance between protruding portion and the kingpin.
Specifically, the protruding portion at the downstream of the movement path of the outer tube pushing the needle roller can interfere with the needle roller when collision occurs, the protruding portion is crushed when the thrust received by the needle roller reaches a set value, a crushing force peak value is obtained, and the protruding portion at the upstream of the movement path of the outer tube pushing the needle roller when collision occurs can limit the needle roller when collision does not occur, so that the needle roller is always located between the two protruding portions, and large-amplitude movement of the needle roller when normal adjustment of a steering column is avoided.
Alternatively, the convex portions are symmetrically arranged on the groove wall of the inner tube raceway groove along the center line of the inner tube raceway groove.
Specifically, the protruding portions symmetrically arranged along the center line of the inner tube raceway groove are adopted, so that the same needle roller can be guaranteed to be balanced in stress on two sides of the accommodating cavity when the needle roller crushes the protruding portions, and the needle roller is prevented from deflecting when the needle roller crushes the protruding portions.
Optionally, one end of the outer tube raceway groove is provided with a sliding groove communicated with the outer tube raceway groove, and a groove wall of the outer tube 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, after the rolling needle crushes the protruding portion and slides completely over the crushed protruding portion, the rolling needle reaches the end of the inner tube raceway groove, at the moment, the rolling needle is extruded into the sliding groove due to the fact that the collision energy absorption process is still carried out, stable sliding force is still generated due to the fact that the rolling needle slides relative to the sliding groove, and collision energy absorption can be continuously maintained.
In other examples, the sliding groove may be disposed at an end of the inner tube raceway groove, and after the roller pin crushes the boss and slides completely over the crushed boss, the roller pin reaches the junction between the inner tube raceway groove and the sliding groove, when the energy absorption process of collision is still performed, the roller pin is extruded into the sliding groove, the sliding force is stable due to the sliding of the roller pin and the sliding groove, and the energy absorption of collision can be continuously maintained.
Optionally, the one end that is close to first chamfer of kingpin is provided with the second chamfer, and the second chamfer cooperatees with first chamfer.
Specifically, when first chamfer and second chamfer paste, can transmit the power of certain size, also can play the guide effect when the atress reaches a certain value for the kingpin can be pressed into the inslot that slides, carries out the relative slip that produces great sliding force, and then plays the energy-absorbing effect.
Optionally, the accommodation chamber is provided with a plurality.
Specifically, a needle roller is arranged in each accommodating cavity, so that when in collision, the plurality of needle rollers simultaneously crush and absorb energy and slip and absorb energy, and the force transmitted by the collision is equally divided by the plurality of needle rollers.
Optionally, the raised portion is barb-like.
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, a groove is provided on one side of the protruding portion, and the volume of the protruding portion is larger than the volume of the groove.
Specifically, when the roller pin crushes the protruding part, the protruding part is crushed when the crushing force is at a peak value, one part of the protruding part enters the groove, and the other part of the protruding part is still exposed, so that the stable crushing force formed by the roller pin and the exposed protruding part is still maintained between the inner tube and the outer tube when the roller pin continuously slides.
Optionally, the set point is a crushing force peak.
Specifically, in order to generate crushing force meeting technical requirements, the following design thought design can be adopted:
1. maximum crushing force:
1.1, the maximum crushing force requirement is met by designing the size of the protruding part;
1.2, if the requirement on the maximum crushing force is larger, a plurality of rolling needles can be designed to equally divide the maximum crushing force;
2. stabilization of crushing force:
2.1, designing the size of the volume (such as the size or depth of a design groove) of the bulge part which still protrudes out of the groove wall of the inner pipe raceway after being crushed, so as to meet the requirement of stable crushing force;
2.2 designing the size of the sliding groove, and meeting the requirement of stable crushing force.
The invention further 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 crushing integrated steering column including:
an inner tube 1, an inner tube raceway groove 2 is arranged on the periphery of the inner tube 1, and a bulge part 3 is arranged on the groove wall of the inner tube raceway groove 2;
an outer tube 4, an outer tube raceway groove 5 is arranged on the inner periphery of the outer tube 4, and the outer tube raceway groove 5 can be matched with the inner tube raceway groove 2 to form a containing cavity;
the rolling needle 6 is movably arranged in the accommodating cavity, and the rolling needle 6 interferes with the protruding part 3 and can crush the protruding part 3 when the received thrust reaches a set value.
In this embodiment, the protruding portion 3 is disposed at two ends of the needle roller 6, and a sliding gap is left between the protruding portion 3 and the needle roller 6.
In the present embodiment, the boss portions 3 are symmetrically provided on the groove wall of the inner tube raceway groove 2 along the center line of the inner tube raceway groove 2.
In the present embodiment, one end of the outer tube raceway groove 5 is provided with a slip groove 7 communicating with the outer tube raceway groove 5, and the groove wall of the outer tube raceway groove 5 is connected with the groove wall of the slip groove 7 by a tapered first chamfer.
In this embodiment, the end of the needle roller 6 near the first chamfer is provided with a second chamfer, which is matched with the first chamfer.
In the present embodiment, the accommodation chamber is provided in plurality.
In this embodiment, the boss 3 is barb-shaped.
In this embodiment, the protruding portion 3 is provided with a recess 8 on one side, the volume of the protruding portion being larger than the volume of the recess.
In this embodiment, the set point is the crushing force peak.
The invention further provides an automobile, which comprises the sliding and crushing integrated steering column.
In summary, when the sliding and crushing integrated steering column provided by the invention is used, an example is taken when an automobile collides: when the automobile collides, the outer tube 4 moves axially along the inner tube 1, when the surface of the first chamfer on the outer tube 4 props against the surface of the second chamfer on the needle roller 6, the outer tube 4 pushes the needle roller 6 to slide along the accommodating cavity, and when the needle roller 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 needle rollers 6 continue to slide downwards, and after the protruding part 3 is pressed into the groove 8, stable sliding force is generated between the needle rollers 6 and the part of the protruding part 3 exposed out of the groove 8, namely stable crushing force; when the needle roller 6 is separated from the boss 3, the needle roller 6 enters the sliding groove 7, and the inner space of the sliding groove 7 is reduced compared with the inner tube raceway groove 2, so that stable sliding force is generated between the needle roller 6 and the groove wall of the sliding groove 7, and the steering column generates crushing energy absorption function in the process.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or 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 various embodiments described.
Claims (8)
1. A slip crush integrated steering column, comprising:
an inner pipe, wherein an inner pipe raceway groove is formed in the periphery of the inner pipe, and a protruding part is formed in the groove wall of the inner pipe raceway groove;
an outer tube, an outer tube raceway groove is arranged on the inner circumference of the outer tube, and the outer tube raceway groove can be matched with the inner tube raceway groove to form a containing cavity;
the rolling pin is movably arranged in the accommodating cavity, interferes with the protruding part and can crush the protruding part when the received thrust reaches a set value;
one side of the protruding part is provided with a groove, the volume of the protruding part is larger than that of the groove, when the protruding part is crushed, one part of the protruding part enters the groove, and the other part of the protruding part is positioned outside the groove;
the set value is a crushing force peak value.
2. The slip crush integrated steering column of claim 1, wherein the boss is disposed at both ends of the needle roller with a sliding gap left therebetween.
3. The slip crush integrated steering column according to claim 1, wherein the convex portions are symmetrically disposed on a groove wall of the inner tube raceway groove along a center line of the inner tube raceway groove.
4. The slip and 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 with a groove wall of the slip groove by a tapered first chamfer.
5. The slip crush integrated steering column of claim 4, wherein an end of the needle roller proximate the first chamfer is provided with a second chamfer that mates with the first chamfer.
6. The slip crush integrated steering column of claim 1, wherein the receiving cavity is provided in plurality.
7. The slip crush integrated steering column of claim 1, wherein the boss is barb-like.
8. An automobile comprising a slip crush integrated steering column according to any one of claims 1-7.
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 CN114179899A (en) | 2022-03-15 |
| CN114179899B true CN114179899B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111290729.3A Active CN114179899B (en) | 2021-11-02 | 2021-11-02 | Sliding and crushing integrated steering column and automobile |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106428188A (en) * | 2015-08-11 | 2017-02-22 | 株式会社山田制作所 | Steering device |
| JP2018184064A (en) * | 2017-04-25 | 2018-11-22 | 株式会社山田製作所 | Steering device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2854177B2 (en) * | 1991-10-16 | 1999-02-03 | ダイハツ工業株式会社 | Energy absorbing steering system |
| WO2003031250A1 (en) * | 2001-10-01 | 2003-04-17 | Nsk Ltd. | Vehicle steering telescopic shaft |
| US7497470B2 (en) * | 2005-11-21 | 2009-03-03 | Delphi Technologies, Inc. | Energy absorbing apparatus |
| KR20090057675A (en) * | 2007-12-03 | 2009-06-08 | 주식회사 만도 | Ball bush |
| US9789897B2 (en) * | 2015-08-11 | 2017-10-17 | Yamada Manufacturing Co., Ltd. | Steering apparatus |
| 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 |
| DE102017218741A1 (en) * | 2017-10-19 | 2019-04-25 | Thyssenkrupp Ag | 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 |
-
2021
- 2021-11-02 CN CN202111290729.3A patent/CN114179899B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| JP2018184064A (en) * | 2017-04-25 | 2018-11-22 | 株式会社山田製作所 | Steering device |
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| CN114179899A (en) | 2022-03-15 |
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