CN209757240U - Energy absorption structure of automobile steering transmission shaft - Google Patents
Energy absorption structure of automobile steering transmission shaft Download PDFInfo
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- CN209757240U CN209757240U CN201821941021.3U CN201821941021U CN209757240U CN 209757240 U CN209757240 U CN 209757240U CN 201821941021 U CN201821941021 U CN 201821941021U CN 209757240 U CN209757240 U CN 209757240U
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- transmission shaft
- steering transmission
- absorbing structure
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Abstract
The utility model discloses an automobile steering transmission shaft energy-absorbing structure, include the top connection that is connected with the steering system and lower clutch, be located the middle sleeve between top connection and the lower clutch, middle sleeve and top connection, lower clutch between equal symmetric connection have two parallel arrangement's pipe, wherein, the crossing certain angle in common plane of the axis of the common plane of the axis of two pipes of connecting the top connection and the axis of two pipes of connecting the lower clutch. The utility model relates to a novelty, simple structure, convenient processing. Can effective transmission torque when normally traveling, fork structure about forming through four pipe and sleeve cooperation, similar universal joint, when the car bumps, middle sleeve can take place a plurality of directions and warp, and the ball roll between pipe and sleeve simultaneously attenuates tire and sub vehicle frame and transmits the impact of steering wheel, and the energy-absorbing is effectual, improves the car security. The deformation directions of all parts are inconsistent, the parts which are not damaged can be used for the second time, and the cost is saved.
Description
Technical Field
The utility model relates to a car steering transmission shaft energy-absorbing structure belongs to car a steering technical field.
Background
When an automobile is collided, a steering wheel and a rigid steering column are main elements for injuring a driver, the injury degree of the driver depends on the intensity of secondary collision between the driver and an accessory in the automobile, and the energy-absorbing and injury-preventing design of a steering mechanism is very necessary for reducing the injury to the driver caused by the backward movement of a steering system. The main mode of the energy-absorbing structure of the current steering transmission shaft is that an inner spline and an outer spline which are provided with wear-resistant coating layers are adopted between the upper section and the lower section of the steering transmission shaft in a sliding fit mode, simple ball sliding fit, dislocation buffering, net-shaped and corrugated support deformation buffering and the like, the first three types can only play an axial energy-absorbing role, the fourth type has good energy-absorbing effect in all directions, but the processing is complex, the manufacturing cost is high, the energy-absorbing structure cannot be reused, and the material waste is caused.
The steering lower transmission shaft assembly with the anti-collision energy-absorbing damping device, disclosed by patent publication No. CN204341177U, is characterized in that a plurality of joint forks are arranged, and the anti-collision energy-absorbing damping device is composed of a lower steering sleeve, a lower steering shaft, a coupling sheet, a rubber disc, a locking nut, a short rivet, a bolt and the like, so that the crumple force is effectively ensured due to the fact that the steering shaft and the sleeve are in riveting connection in the driving process of an automobile, the rubber disc plays a good damping role, the design of the steering column assembly completely meets the requirements of international GB11557-2011, and the driving safety of the automobile is improved. However, the structure is complex, and the relative material usage and the later maintenance cost are greatly increased.
SUMMERY OF THE UTILITY MODEL
To the weak point among the above-mentioned prior art, the utility model aims at providing an automobile steering transmission shaft energy-absorbing structure has combined material deformation and the gliding energy-absorbing effect of ball under the prerequisite of guaranteeing effective transmission torque, realizes a plurality of directions absorbed energy, reduces the injury that the steering system moved backward to the driver. The structure is simple and reliable, the design is novel, and the cost is low.
In order to realize the purpose, the technical scheme of the utility model is that:
The utility model provides an automobile steering transmission shaft energy-absorbing structure, includes top connection and the lower clutch that is connected with a steering system, is located the middle sleeve between top connection and the lower clutch, middle sleeve and top connection, lower clutch between equal symmetric connection have two parallel arrangement's pipe, wherein, the crossing certain angle in common plane of the axis of the two pipes of connecting the upper clutch and the common plane of the axis of the two pipes of connecting the lower clutch.
Furthermore, the middle sleeve comprises an upper connecting part, a middle connecting part and a lower connecting part, and the upper connecting part is symmetrically provided with two first sleeves connected with the lower joint through inserted circular tubes; the lower connecting part is provided with two second sleeves which are connected with the upper joint through interference splicing round pipes, and the common plane of the axes of the two first sleeves intersects with the common plane of the axes of the two second sleeves at a certain angle.
Furthermore, the end, far away from the connected circular tube, of each of the first sleeve and the second sleeve is fixedly provided with a pipe cap which is separated from the circular tube under a certain impact force, and the pipe cap sleeves the tail portion of each sleeve to play a role in limiting the axial movement of the circular tube.
Furthermore, the outer peripheral surface of one end of the first sleeve and one end of the second sleeve, which are connected with the pipe cap, are provided with annular bulges, and the tail part of the pipe cap is inwards turned over and is provided with an annular flange which is matched with the bulges to limit the axial sliding of the circular pipe.
Furthermore, a plurality of balls are arranged between the inner walls of the first sleeve and the second sleeve and the outer wall of the connected circular tube.
Furthermore, the outer wall of the circular tube is provided with a plurality of annular grooves with cross sections which limit the positions of the balls in an arc shape, so that the circular tube and the balls are always matched together.
Further, a common plane of the axes of the two first sleeves 7 intersects a common plane of the axes of the two second sleeves by 90 degrees.
Further, the upper and lower surfaces of the intermediate connecting portion are provided with recessed portions for inducing a deformation direction.
Further, the upper connecting part, the middle connecting part and the lower connecting part are integrally formed.
Compared with the prior art, the beneficial effects of the utility model include:
The utility model discloses a novel in design, simple structure, convenient processing. Can effective transmission torque when normally traveling, fork structure about forming through four pipe and sleeve cooperation, similar universal joint, when the car bumps, middle sleeve can take place a plurality of directions and warp, and the ball roll between pipe and sleeve simultaneously attenuates tire and sub vehicle frame and transmits the impact of steering wheel, and the energy-absorbing is effectual, improves the car security. The deformation directions of all parts are inconsistent, the parts which are not damaged can be used for the second time, and the cost is saved.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic diagram of an intermediate sleeve structure.
FIG. 3 is a sectional view of the sleeve, tube, ball and cap assembly.
Fig. 4 is an assembly view of the present invention in a steering system.
Wherein, 1-middle sleeve, 2-round tube, 3-tube cap, 4-upper joint, 5-lower joint, 6-ball and 7-first sleeve; 8-a second sleeve; 9-concave part.
Detailed Description
The purpose of the present invention will be described in further detail by the following specific examples, which are not repeated herein, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1, an energy absorption structure of a steering transmission shaft of an automobile comprises an upper joint 4 and a lower joint 5 connected with a steering system, and an intermediate sleeve 1 positioned between the upper joint 4 and the lower joint 5, wherein two parallel round tubes 2 are symmetrically connected between the intermediate sleeve 1 and the upper joint 4 as well as between the intermediate sleeve 1 and the lower joint 5, and a common plane of axes of the two round tubes 2 connected with the upper joint 4 intersects with a common plane of axes of the two round tubes 2 connected with the lower joint 5 by 90 degrees.
As shown in fig. 2, the middle sleeve 1 includes an upper connecting portion, a middle connecting portion, and a lower connecting portion, which are integrally formed, and the upper and lower surfaces of the middle connecting portion are provided with recessed portions 9 for inducing a deformation direction; the upper connecting part is symmetrically provided with two first sleeves 7 which are connected with the lower joint 5 through the inserted circular tube 2; the lower connecting part is provided with two second sleeves 8 connected with the upper joint 4 through the inserted circular tubes 2, and the common plane of the axes of the two first sleeves 7 is intersected with the common plane of the axes of the two second sleeves 8 by 90 degrees. The joints of the sleeves are made of metal materials with good ductility, so that deformation and energy absorption are facilitated.
As shown in fig. 3, the first sleeve 7 and the second sleeve 8 are fixedly provided with caps 3 which are separated under a certain impact force at ends far away from the connected circular tube 2, and the caps 3 are sleeved at the tail of the sleeves to limit the axial movement of the circular tube 2.
The outer peripheral face of one end of the pipe cap 3 connected with the first sleeve 7 and the second sleeve 8 is provided with an annular bulge, and the tail part of the pipe cap 3 is inwards turned over to be provided with an annular flange matched with the bulge to limit the axial sliding of the circular pipe 2. First sleeve 7 and 8 inner walls of second sleeve and be provided with a plurality of balls 6 between 2 outer walls of pipe connected, 2 outer walls of pipe on be provided with the annular groove that twice cross sections are circular-arc restriction ball 6 positions, guarantee that pipe and ball are in the same place all the time in the cooperation.
As shown in fig. 4, the upper joint 4 and the lower joint 5 are connected with other parts of the steering system, and at this time, the energy absorption structure of the automobile steering transmission shaft can normally transmit torque, so that the automobile steering function is realized. When an automobile collides and extrudes a steering system, the middle sleeve 1 absorbs a part of energy and adjusts the direction through the deformation of the middle connecting part according to the stress direction, when the axial force exceeds the design range, the circular tube 2 acts on the tube cap 3 to enable the tube cap to fall off, and at the moment, the middle sleeve 1 and the circular tube 2 slide relatively through the balls 6 and absorb the energy stably through friction.
The embodiment of the present invention is not limited by the above-mentioned embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which are not departed from the spirit and principle of the present invention should be equivalent replacement modes, and are all included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an automobile steering transmission shaft energy-absorbing structure which characterized in that: including top connection (4) and lower clutch (5) that are connected with a steering system, be located middle sleeve (1) between top connection (4) and lower clutch (5), middle sleeve (1) and top connection (4), lower clutch (5) between equal symmetric connection have two parallel arrangement's pipe (2), wherein, connect the mutual plane of the axis of two pipe (2) of top connection (4) and the mutual plane of the axis of two pipe (2) of being connected lower clutch (5) and intersect certain angle.
2. The energy absorbing structure of an automotive steering transmission shaft according to claim 1, wherein: the middle sleeve (1) comprises an upper connecting part, a middle connecting part and a lower connecting part, and the upper connecting part is symmetrically provided with two first sleeves (7) which are connected with the lower joint (5) through inserted circular tubes (2); the lower connecting portion be provided with two and connect through interference grafting pipe (2) top connection (4) second sleeve (8), two the common plane of the axis of first sleeve (7) and two the crossing certain angle in common plane of the axis of second sleeve (8).
3. The energy absorbing structure of an automotive steering transmission shaft according to claim 2, characterized in that: the pipe cap (3) which is separated under certain impact force is fixedly arranged at one end, far away from the connected circular pipe (2), of the first sleeve (7) and the second sleeve (8).
4. The energy absorbing structure of an automotive steering transmission shaft according to claim 3, wherein: the outer peripheral face of one end of the pipe cap (3) is connected with the first sleeve (7) and the second sleeve (8) is provided with an annular bulge, and an annular flange matched with the bulge to limit axial sliding of the circular pipe (2) is arranged at the tail of the pipe cap (3) in an inwards-turned mode.
5. The energy absorbing structure of an automotive steering transmission shaft according to claim 2, characterized in that: a plurality of balls (6) are arranged between the inner walls of the first sleeve (7) and the second sleeve (8) and the outer wall of the connected round pipe (2).
6. The energy absorbing structure of an automotive steering transmission shaft according to claim 5, wherein: the outer wall of the circular tube (2) is provided with a plurality of annular grooves with cross sections of arc shapes for limiting the positions of the balls (6).
7. The energy absorbing structure of an automotive steering transmission shaft according to claim 2, characterized in that: the common plane of the axes of the two first sleeves (7) intersects the common plane of the axes of the two second sleeves (8) at 90 degrees.
8. The energy absorbing structure of an automotive steering transmission shaft according to claim 2, characterized in that: the upper surface and the lower surface of the middle connecting part are provided with sunken parts (9) for inducing the deformation direction.
9. The energy absorbing structure of an automotive steering transmission shaft according to claim 2, characterized in that: the upper connecting part, the middle connecting part and the lower connecting part are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821941021.3U CN209757240U (en) | 2018-11-23 | 2018-11-23 | Energy absorption structure of automobile steering transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821941021.3U CN209757240U (en) | 2018-11-23 | 2018-11-23 | Energy absorption structure of automobile steering transmission shaft |
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| Publication Number | Publication Date |
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| CN209757240U true CN209757240U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821941021.3U Active CN209757240U (en) | 2018-11-23 | 2018-11-23 | Energy absorption structure of automobile steering transmission shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353402A (en) * | 2018-11-23 | 2019-02-19 | 华南理工大学 | A kind of automobile steering drive shaft endergonic structure |
-
2018
- 2018-11-23 CN CN201821941021.3U patent/CN209757240U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353402A (en) * | 2018-11-23 | 2019-02-19 | 华南理工大学 | A kind of automobile steering drive shaft endergonic structure |
| CN109353402B (en) * | 2018-11-23 | 2024-08-16 | 华南理工大学 | Energy absorption structure of steering transmission shaft of automobile |
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