CN109733459B - Steering column for realizing secondary collapse structure and method thereof - Google Patents
Steering column for realizing secondary collapse structure and method thereof Download PDFInfo
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- CN109733459B CN109733459B CN201910188663.3A CN201910188663A CN109733459B CN 109733459 B CN109733459 B CN 109733459B CN 201910188663 A CN201910188663 A CN 201910188663A CN 109733459 B CN109733459 B CN 109733459B
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000004677 Nylon Substances 0.000 claims abstract description 28
- 229920001778 nylon Polymers 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a steering column for realizing a secondary collapse structure and a method thereof. The steering column comprises an adjusting structure, an intermediate shaft structure and a steering shaft structure. The invention is suitable for steering mechanisms of automobiles. The adjusting handle is loosened, the angle and the height direction are unlocked, the upper column tube slides up and down in the lower column tube to realize height adjustment, the whole column tube slides along the arc groove of the support to realize angle adjustment, the adjusting handle is locked, and the angle and the height direction are simultaneously locked. The invention has the advantages that the use method is simple, the user is convenient to adjust, the integral bracket is adopted, the assembly step is simplified, the production efficiency is improved, the stability of the collapsing force is better ensured, the nylon limiting block is fixed on the upper column tube, the ideal collapsing peak value can be realized by adjusting the small head size of the limiting block, the corrugated tube is locally adopted on the upper column tube, the expanding space is reserved at the bottom of the steering upper shaft, the secondary collapsing structure is better realized, and the safety is higher.
Description
Technical Field
The invention relates to a steering column for realizing a secondary collapse structure, which is universally applicable to all automobile steering systems.
Background
The vehicle is equipped with a steering column for the convenience of the driver, which additionally has a telescopic or tilting function. The telescoping device is a device that allows the steering column to telescope axially, and the tilting device is a device that adjusts the angle of the steering column. All the structures of the pipe columns at the present stage are large in upper pipe and small in lower pipe, and the bracket adopts an assembled structure, so that the assembly complexity of the whole structure of the steering pipe column is increased, the production cost is increased, and the collapse force is difficult to be stably ensured; the height adjustment of the pipe column has a complex structure and is not easy to control the precision; the vibration of the existing equipment is obvious when the equipment is used, the structure is not beneficial to stability, and the user experience is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a steering column for realizing a secondary collapse structure and a use method thereof.
The steering column for realizing the secondary collapse structure comprises an adjusting structure, an intermediate shaft structure and a steering shaft structure; the adjusting structure comprises an integral bracket, a lower column tube, a tension spring, an upper column tube, a nylon limiting block, a locking stud, a locking block I, a locking block II, an adjusting handle, a hexagonal flange face nut and a limiting plate; the steering shaft structure comprises a steering upper shaft, a tight positioning ring, a locking sleeve, an upper spline sleeve and a steering lower shaft;
the lower column tube is fixed on the integral support through bolts, the integral support is connected with two sides of the lower column tube through tension springs, the upper column tube is sleeved in the lower column tube, the locking stud penetrates through the integral support and the lower column tube, the nylon limiting block is fixed on the upper column tube, the locking block I, the locking block II and the adjusting handle are sequentially fixed at one end of the locking stud, the hexagonal flange face nut is fixed at one end of the locking stud, and the limiting plate is sleeved on the hexagonal flange face nut and is fixed with the adjusting handle; the middle shaft structure is connected with the steering shaft structure through a universal joint, the tight positioning ring is fixed on the steering upper shaft, the locking sleeve penetrates through the steering upper shaft to be matched and fixed with the tight positioning ring, the steering lower shaft is fixed in an upper spline sleeve, the upper spline sleeve is fixed with the steering upper shaft, and the steering shaft structure is sleeved in the upper column tube; the bottom of the steering upper shaft is provided with a cylindrical hole;
the nylon limiting block comprises a mounting fixing head, a small head and a limiting groove; the small end is a flange with one end of the limiting groove protruding outwards and upwards; the fixed head is positioned at the other end of the limiting groove far away from the small head; the fixing head is provided with a mounting hole; the limiting groove of the nylon limiting block is positioned below the locking stud and clings to the locking stud; the nylon limiting block is fixed on the upper column tube through a screw penetrating through a mounting hole on the fixing head.
The steering column realizing the secondary collapse structure is characterized in that the steering column and the upper column tube comprise a corrugated tube structure, so that the secondary collapse in the steering column is collapse energy absorption.
The steering column for realizing the secondary collapse structure is characterized in that a cylindrical hole is formed in the bottom of the steering upper shaft and used for accommodating the steering lower shaft when the secondary collapse is carried out.
The intermediate shaft structure comprises a rubber buffer bushing, so that vibration and noise reduction are realized. The intermediate shaft is used for transmitting torque to realize automobile steering.
The steering column realizing the secondary collapse structure is characterized in that the integral bracket (comprising a mounting bracket, a lower bracket and a middle bracket, which are structurally integrated, wherein the middle bracket comprises an arc groove, the locking stud penetrates through the arc groove, and the arc groove well limits the angle adjusting path and the stroke of the steering column.
The application method of the steering column for realizing the secondary collapse structure is characterized by comprising the following steps of:
1) Loosening the adjusting handle, sliding the upper column tube up and down, and adjusting the upper column tube to a proper height;
2) The upper column tube and the lower column tube slide along the arc groove of the bracket to adjust the steering column to a proper angle;
3) Locking the adjusting handle to fix the angle and the height of the adjusted column tube;
4) When the automobile is unexpected, the body of the driver leans forward to strike the steering wheel, the integral bracket structure is kept stable, the upper column tube moves downwards against the clamping force of the lower column tube to the upper column tube, and the nylon limiting block is cut off, so that first-stage collapse is realized;
5) When the first-stage collapse of the pipe column reaches the limit, the second-stage collapse is started, the corrugated pipe structure in the upper pipe column is deformed, and meanwhile, the lower shaft is embedded into the bottom cylindrical hole of the upper shaft to realize the second-stage collapse.
The invention adopts the integral bracket, and the characteristics (slotting, injection molding and the like) needed by the collapse are eliminated on the bracket, so that the bracket does not influence the collapse any more, the stability and the reliability of the pipe column can be improved, and meanwhile, the assembly can be simplified; the lower column tube adopts a die-casting aluminum structure, the tube diameter is larger, the upper column tube is arranged in the lower column tube, and then the integral bracket is combined, so that when the column tube collapses, only the upper column tube and the steering upper shaft move, in a simple way, the collapse force is basically equal to the holding force, and the stability of the collapse force is ensured under the condition of good dimensional consistency of parts; according to the invention, the nylon limiting block is fixed on the upper column tube, so that the limit of the height travel can be simply realized, and meanwhile, the range of the height travel can be easily adjusted. The small head at the front end of the limiting block is damaged and broken when the limiting block is collapsed, so that a collapse peak value is generated, the size of the small head is adjusted, a desired peak value can be obtained easily, and the stability of the collapse peak value can be ensured; when the steering column collapses, two-stage collapse processes absorb energy fully, the damage of the situation to a driver is reduced, and when collision occurs, the upper column tube overcomes the clamping force of the lower column tube to the upper column tube to realize first-stage collapse (the friction force in the process can absorb energy, and the collapse process can cut off the flange of the nylon limiting block and can absorb energy at the same time), and the collapse force of the first-stage collapse is kept constant and equal to the clamping force; when the first-stage collapse reaches the limit, the second-stage collapse is started, the local corrugated pipe structure of the upper pipe column is deformed to absorb energy and further collapse, the lower shaft is turned to extend into the bottom expanding space of the upper shaft, the second-stage collapse is realized, and the collapse travel is further increased; the steering shaft adopts a nylon coating structure, so that the sliding requirement of four-way adjustment is met; the jackshaft adopts nylon coating structure, has used rubber buffer bush simultaneously, and dual shock attenuation falls and makes an uproar.
Drawings
FIG. 1 is a schematic illustration of a steering column embodying a secondary crush structure in accordance with the present invention;
FIG. 2 is a schematic illustration of an adjustment structure of a steering column embodying a secondary crush structure of the present invention;
FIG. 3 is an auxiliary schematic view of a steering column embodying a secondary crush structure of the present invention;
FIG. 4 is a schematic illustration of a steering shaft of a steering column embodying a secondary collapse structure in accordance with the present invention;
FIG. 5 is a schematic illustration of the steering column collapse limit of a steering column implementing a secondary collapse structure according to the present invention
FIG. 6 is a schematic diagram of an intermediate shaft of a steering column embodying a secondary crush structure of the present invention;
FIG. 7 is a schematic illustration of an integrated bracket for a steering column embodying a secondary crush structure in accordance with the present invention;
FIG. 8 is a schematic view of a nylon stopper of a steering column implementing a secondary collapse structure in accordance with the present invention;
in the figure, an integral bracket 11, a lower column tube 12, a tension spring 13, an upper column tube 14, a corrugated tube structure 14-1, a nylon limiting block 15, a locking stud 16, a locking block I17, a locking block II 18, an adjusting handle 19, a hexagonal flange face nut 110, a limiting plate 111, a steering upper shaft 31, a cylindrical hole 31-1, a tight positioning ring 32, a locking sleeve 33, an upper spline sleeve 34, a steering lower shaft 35, a rubber buffer bushing 21, a mounting bracket 11-1, a lower bracket 11-2, a middle bracket 11-3, a circular arc groove 11-3-1, a fixing head 15-1, a small head 15-2 and a limiting groove 15-3.
Detailed Description
As shown in fig. 1, the steering column includes an adjustment structure 1, a middle shaft structure 2, a steering shaft structure 3,
as shown in fig. 2, the adjusting structure 1 comprises an integral bracket 11, a lower column tube 12, a tension spring 13, an upper column tube 14, a corrugated tube structure 14-1, a nylon limiting block 15, a locking stud 16, a locking block I17, a locking block II 18, an adjusting handle 19, a hexagonal flange face nut 110 and a limiting plate 111, wherein the upper column tube 14 is sleeved in the lower column tube 12, the locking stud 16 passes through the middle bracket 11-3 of the integral bracket 11, the lower column tube and an assembling hole on the adjusting handle 19, the limiting block 15 is fixed on the upper column tube 14, the nylon limiting block 15 is positioned in the middle of the lower column tube 12 and below the locking stud, the limiting range of the height stroke of the column tube structure is realized in a simple manner, the range of the adjusting height can be realized more easily, the locking block I17 and the locking block II 18 are arranged between the adjusting handle 19 and the middle bracket 11-3 near the adjusting handle 19, the automatic loosening phenomenon of the locking stud 16 in the using process is well prevented, then the hexagonal flange face nut 110 is used for fixing the locking stud 16 between the two opposite ends of the adjusting handle 19 and the hexagonal flange face nut 110, and the limiting plate 11 is fixed between the two opposite end faces of the adjusting flange face nut 110; the height of the column tube can be easily adjusted by adjusting the handle 19.
As shown in fig. 3, the adjusting handle 19 is loosened to the hexagonal flange face nut 110, and the upper column tube 14 and the lower column tube 12 can slide along the circular arc groove 11-3-1 of the middle bracket 11-3 to adjust the steering column to a proper angle; tension springs 13 are added to the middle support 11-3 and the lower column tube 12 of the integral support 11 at two sides, so that the aim of absorbing energy is achieved, a certain damping effect is achieved, and the stability of the integral structure is enhanced.
The steering shaft structure 3 shown in fig. 4 includes a steering upper shaft 31, a cylindrical hole 31-1, a tight retainer ring 32, a lock sleeve 33, an upper spline sleeve 34, a steering lower shaft 35; the tight positioning ring 32 is fixed on the steering upper shaft 31, the locking sleeve 33 penetrates through the steering upper shaft 31 to be matched and fixed with the tight positioning ring 32, the steering lower shaft 35 is fixed in the upper spline sleeve 34, the upper spline sleeve 34 is fixed with the steering upper shaft 31, and the steering shaft 3 is sleeved in the upper column tube 14. The steering shaft adopts a nylon coating structure, so that the steering shaft better meets the sliding requirement of four-way adjustment.
As shown in fig. 5, the steering lower shaft 35 engages the bottom cylindrical bore 31-1 of the steering upper shaft 31 when the steering shaft reaches the collapse limit.
As shown in fig. 6, the intermediate shaft structure 2 comprises a rubber buffer bushing 21, a spline bushing 22 is sleeved in a pipe sleeve fork 23, and the rubber buffer bushing 21 is positioned between the spline bushing 22 and the pipe sleeve fork 23, so that the effects of shock absorption and noise reduction are well achieved;
as shown in FIG. 7, the integral bracket 11 comprises a mounting bracket 11-1, a lower bracket 11-2 and a middle bracket 11-3, wherein the brackets are fixed by welding, so that the three parts of the structure are integrated, and simultaneously, the required characteristics (such as slotting, injection molding and the like) for collapsing are eliminated on the brackets, so that the brackets do not influence collapsing any more, the stability and the reliability of the pipe column are improved, and meanwhile, the assembly process is simplified.
As shown in fig. 8, the nylon stopper 15 comprises a mounting fixing head 15-1, a small head 15-2 and a limiting groove 15-3; the small end 15-2 is a flange with one end of the limiting groove 15-3 protruding outwards and upwards; the fixed head 15-1 is positioned at the other end of the limit groove 15-3 far away from the small head 15-2; the fixed head 15-1 is provided with a mounting hole; the limiting groove 15-3 of the nylon limiting block 15 is positioned below the locking stud 16 and is clung to the locking stud 16; the nylon stopper 15 is fixed on the upper column tube 14 by passing through the mounting hole of the fixing head 15-1 through a screw. The desired collapse force peak value can be achieved in a simple and convenient manner by adjusting the size of the small head 15-2, and the height stroke of the column tube can be easily adjusted by adjusting the width of the limit groove 15-3.
The application method of the steering column with the two-stage crumple structure is characterized by comprising the following steps of:
1) The adjusting handle 19 is loosened, the upper column tube 14 is slid up and down, and the upper column tube is adjusted to a proper height;
2) The upper column tube 14 and the lower column tube 12 slide along the arc groove 11-3-1 of the bracket to adjust the steering column to a proper angle;
3) Locking the adjusting handle 19 to fix the adjusted angle and height of the column tube;
4) When an accident happens to the automobile, the body of the driver leans forwards to strike the steering wheel, the integral bracket 11 keeps stable in structure, the upper column tube 14 moves downwards against the clamping force of the lower column tube 12 to the upper column tube 14, and meanwhile, the nylon limiting block is cut off, so that the first-stage collapse is realized;
5) When the first-stage collapse of the pipe column reaches the limit, the second-stage collapse is started, the corrugated pipe structure in the upper pipe column is deformed, and meanwhile, the steering lower shaft 35 is embedded into the bottom cylindrical hole 31-1 of the steering upper shaft 31, so that the second-stage collapse is realized.
Claims (4)
1. The steering column for realizing the secondary collapse structure is characterized by comprising an adjusting structure (1), an intermediate shaft structure (2) and a steering shaft structure (3); the adjusting structure (1) comprises an integral bracket (11), a lower column tube (12), a tension spring (13), an upper column tube (14), a nylon limiting block (15), a locking stud (16), a locking block I (17), a locking block II (18), an adjusting handle (19), a hexagonal flange face nut (110) and a limiting plate (111); the steering shaft structure (3) comprises a steering upper shaft (31), a tight positioning ring (32), a locking sleeve (33), an upper spline sleeve (34) and a steering lower shaft (35);
the lower column tube (12) is fixed on the integral bracket (11) through bolts, the two sides of the integral bracket (11) and the lower column tube (12) are connected through tension springs (13), the upper column tube (14) is sleeved in the lower column tube (12), the locking stud (16) penetrates through the integral bracket (11) and the lower column tube (12), the nylon limiting block (15) is fixed on the upper column tube (14), the locking block I (17), the locking block II (18) and the adjusting handle (19) are sequentially fixed at one end of the locking stud, the hexagonal flange face nut (110) is fixed at one end of the locking stud (16), and the limiting plate (111) is sleeved on the hexagonal flange face nut (110) and is fixed with the adjusting handle (19); the middle shaft structure (2) is connected with the steering shaft structure (3) through a universal joint, the tight positioning ring (32) is fixed on the steering upper shaft (31), the locking sleeve (33) penetrates through the steering upper shaft (31) to be matched and fixed with the tight positioning ring (32), the steering lower shaft (35) is fixed in the upper spline sleeve (34), the upper spline sleeve (34) is fixed with the steering upper shaft (31), and the steering shaft structure (3) is sleeved in the upper column tube (14); the bottom of the steering upper shaft (31) is provided with a cylindrical hole (31-1);
the nylon limiting block (15) comprises a mounting fixing head (15-1), a small head (15-2) and a limiting groove (15-3); a flange which is outwards and upwards protruded from one end of the limiting groove (15-3) of the small head (15-2); the fixed head (15-1) is positioned at the other end of the limit groove (15-3) far away from the small head (15-2); the fixed head (15-1) is provided with a mounting hole; the limiting groove (15-3) of the nylon limiting block (15) is positioned below the locking stud (16) and is clung to the locking stud (16); the nylon limiting block (15) is fixed on the upper column tube (14) through a mounting hole on the fixing head (15-1) by a screw;
the upper column tube (14) is provided with a corrugated tube structure (14-1);
the intermediate shaft is of a nylon coating structure, and a rubber buffer bushing (21) is arranged on the intermediate shaft structure (2).
2. A steering column for realizing a two-stage collapse structure according to claim 1, wherein said steering shaft structure (3) is a nylon-coated structure.
3. The steering column for realizing the secondary collapse structure according to claim 1, wherein the integral bracket (11) comprises a mounting bracket (11-1), a lower bracket (11-2) and a middle bracket (11-3), the three parts are integrally formed, the middle bracket (11-3) is provided with an arc groove (11-3-1), and the locking stud (16) penetrates through the arc groove (11-3-1).
4. A method of operating a steering column in accordance with claim 1 to achieve a secondary crush structure comprising the steps of:
1) The adjusting handle (19) is loosened, the upper column tube (14) is slid up and down, and the upper column tube is adjusted to a proper height;
2) The upper column tube (14) and the lower column tube (12) slide along the arc groove (11-3-1) of the bracket to adjust the steering column to a proper angle;
3) Locking an adjusting handle (19) to fix the angle and the height of the column tube after adjustment;
4) When the automobile accidentally tilts forward to strike the steering wheel, the integral bracket (11) keeps stable in structure, the upper column tube (14) overcomes the clamping force of the lower column tube (12) on the upper column tube (14) and cuts off the nylon limiting block to realize first-stage collapse;
5) When the first-stage collapse of the pipe column reaches the limit, the second-stage collapse is started, the corrugated pipe structure in the upper pipe column is deformed to absorb energy, and meanwhile the lower shaft (35) is embedded into the bottom cylindrical hole (31-1) of the upper shaft (31) to realize the second-stage collapse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910188663.3A CN109733459B (en) | 2019-03-13 | 2019-03-13 | Steering column for realizing secondary collapse structure and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910188663.3A CN109733459B (en) | 2019-03-13 | 2019-03-13 | Steering column for realizing secondary collapse structure and method thereof |
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| Publication Number | Publication Date |
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| CN109733459A CN109733459A (en) | 2019-05-10 |
| CN109733459B true CN109733459B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910188663.3A Active CN109733459B (en) | 2019-03-13 | 2019-03-13 | Steering column for realizing secondary collapse structure and method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110356463B (en) * | 2019-08-19 | 2022-03-11 | 奇瑞商用车（安徽）有限公司 | Steering column four-way adjusting device and vehicle |
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2019
- 2019-03-13 CN CN201910188663.3A patent/CN109733459B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202243625U (en) * | 2011-09-13 | 2012-05-30 | 优立昂（上海）汽车零部件科技有限公司 | Collapse-controllable steering pipe column assembly for automobile |
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| CN109733459A (en) | 2019-05-10 |
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| CB02 | Change of applicant information |
Address after: No.28 Xiangshan Road, Wenyan Town, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: ZHEJIANG WANDA STEERING GEAR Co.,Ltd. Address before: No.28 Xiangshan Road, Wenyan Town, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: ZHEJIANG WANDA STEERING GEAR CO.,LTD. |
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