CN212373475U - Dotting collapsing energy-absorbing steering intermediate shaft - Google Patents
Dotting collapsing energy-absorbing steering intermediate shaft Download PDFInfo
- Publication number
- CN212373475U CN212373475U CN202020567926.XU CN202020567926U CN212373475U CN 212373475 U CN212373475 U CN 212373475U CN 202020567926 U CN202020567926 U CN 202020567926U CN 212373475 U CN212373475 U CN 212373475U
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- spline
- energy
- dotting
- intermediate shaft
- steering intermediate
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Abstract
The utility model discloses a take a bit and crumple energy-absorbing and turn to jackshaft, including first section fork, cross bearing, second section fork, spline pipe and integral key shaft, first section fork passes through the cross bearing and connects the second section fork, spline pipe suit is on the second section fork, the integral key shaft is installed on spline pipe, and spline pipe fixes on the integral key shaft through taking a bit. The utility model discloses mainly be that epaxial spline pipe is fixed on the integral key shaft through dotting, owing to dotting the increase of frictional force in the slip in-process each other that back spline pipe and integral key shaft material warp and lead to this reaches the energy-absorbing effect that contracts of bursting.
Description
Technical Field
The utility model relates to a car a steering system field specifically is a get crumple energy-absorbing and turn to jackshaft.
Background
With the rapid development of social economy and the improvement of the living standard of people, automobiles become necessary transportation tools in daily life, and the automobiles bring convenience to the life and hidden dangers to the life safety of people, so that the requirements of people on the safety performance of the automobiles are higher and higher. The steering intermediate shaft is a very important part of an automobile steering system, and the quality of the steering intermediate shaft influences the driving comfort and safety.
At present, the types of steering intermediate shafts are various, 1) an integrally welded intermediate shaft and a telescopic intermediate shaft; 2) the middle shaft with the injection molding pin collapse energy absorption function absorbs energy through shearing of the injection molding pin, and after the injection molding pin is sheared, basically no retaining force exists between two parts connected with the injection molding pin, so that the structure can only absorb part of impact energy, and the safety of a driver cannot be effectively protected during vehicle collision. Therefore, in view of the above situation, there is a need to develop a spot-crush energy-absorbing steering intermediate shaft to overcome the shortcomings in the current practical application.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a get crumple energy-absorbing of contracting turns to jackshaft to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a beat energy-absorbing of collapsing and turning jackshaft, includes first section fork, cross bearing, second section fork, spline pipe and integral key shaft, first section fork passes through the cross bearing and connects the second section fork, the spline pipe suit is on the second section fork, the integral key shaft is installed on the spline pipe, and the spline pipe is fixed on the integral key shaft through beating.
As a further aspect of the present invention: the first section of fork is rotatably connected with the cross bearing, and the cross bearing is further rotatably connected with the second section of fork.
As a further aspect of the present invention: the spline tube is installed on the bottom hole of the second section fork through the external spline.
As a further aspect of the present invention: and the spline tube and the second section fork are connected in a welding manner.
As a further aspect of the present invention: the external spline of the spline shaft is in clearance fit connection with the internal spline of the spline tube.
As a further aspect of the present invention: the spline tube is fixed on the spline shaft through dotting deformation.
As a further aspect of the present invention: the dotting position of the spline pipe is located at the right end of the spline pipe.
As a further aspect of the present invention: dotting on the spline pipe is hemispherical structure, and dotting circumference evenly distributed on the spline pipe is equipped with 4 ~ 8.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model realizes the collapse energy absorption through the friction force, the size of the friction force can be adjusted to the size of the dotting size to meet the requirements of different collapse forces, the structure is simple, and the manufacturing cost is low; meanwhile, the process of dotting firstly and pressing secondly is adopted, the pressing-in force is monitored by 100% in the pressing-in process, and the collapse force is ensured; when the energy absorption device is collapsed, the energy absorption is more reliable.
Drawings
Fig. 1 is a schematic view of the assembly structure of the present invention.
In the figure: 1-a first section fork, 2-a cross bearing, 3-a second section fork, 4-a spline pipe and 5-a spline shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a dotted collapsing energy-absorbing steering intermediate shaft includes a first joint fork 1, a cross bearing 2, a second joint fork 3, a spline tube 4 and a spline shaft 5, where the first joint fork 1 is connected to the second joint fork 3 through the cross bearing 2, the spline tube 4 is sleeved on the second joint fork 3, the spline shaft 5 is installed on the spline tube 4, and the spline tube 4 is fixed on the spline shaft 5 through a dotted point, when the structure collapses, an axial force is input through the spline shaft 5, and when a collapsing force passes through the spline tube 4, due to an increase of a friction force after relative sliding after a material between the dotted shaft tubes is deformed, the collapsing force is gradually reduced and slowed down and then transmitted to the second joint fork 3, and the second joint fork 3 is transmitted to the first joint fork 1 through the cross bearing 2 and then output by the first joint fork 1.
In this embodiment, the first yoke 1 is rotatably connected to the cross bearing 2, and the cross bearing 2 is further rotatably connected to the second yoke 3.
In this embodiment, the spline tube 4 is installed in the bottom hole of the second yoke 3 through an external spline (not shown), and the spline tube 4 and the second yoke 3 are connected by welding.
In this embodiment, the external splines of the spline shaft 5 are in clearance fit with the internal splines of the spline tube 4, the spline tube 4 is deformed and fixed on the spline shaft 5 through a striking point, and the friction between the spline shaft 5 and the spline tube 4 is increased due to the deformation of the material between the shaft tubes after the striking point, so that the collapsing and energy-absorbing functions are achieved.
In this embodiment, the position of dotting of spline pipe 4 is located the right-hand member of spline pipe 4, dotting on the spline pipe 4 is hemispherical structure, also can be other shape structures, and the circumference evenly distributed of dotting on the spline pipe 4 is equipped with 4 ~ 8.
The utility model realizes the collapse energy absorption through the friction force, the size of the friction force can be adjusted to the size of the dotting size to meet the requirements of different collapse forces, the structure is simple, and the manufacturing cost is low; meanwhile, the process of dotting firstly and pressing secondly is adopted, the pressing-in force is monitored by 100% in the pressing-in process, and the collapse force is ensured; when the energy absorption device is collapsed, the energy absorption is more reliable.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (8)
1. The utility model provides a take advantage of crumpling energy-absorbing and turn to jackshaft, includes first festival fork (1), cross bearing (2), second festival fork (3), spline pipe (4) and integral key shaft (5), its characterized in that, second festival fork (3) are connected through cross bearing (2) in first festival fork (1), spline pipe (4) suit is on second festival fork (3), install on spline pipe (4) spline shaft (5), and spline pipe (4) fix on integral key shaft (5) through taking the point.
2. The crush-point energy-absorbing steering intermediate shaft according to claim 1, wherein the first yoke (1) is rotatably connected to a cross bearing (2), and the cross bearing (2) is also rotatably connected to a second yoke (3).
3. The crumpling energy-absorbing steering intermediate shaft according to claim 1, characterized in that the spline tube (4) is fitted into the bottom hole of the second yoke (3) by external splines.
4. The crush-point energy-absorbing steering intermediate shaft according to claim 1 or 3, wherein the spline tube (4) and the second yoke (3) are connected by welding.
5. The crumpling energy-absorbing steering intermediate shaft according to claim 1, characterized in that the external splines of the spline shaft (5) are in clearance fit connection with the internal splines of the spline tube (4).
6. The dotting crush energy-absorbing steering intermediate shaft according to claim 1 or 5, characterized in that the spline tube (4) is fixed to a spline shaft (5) by dotting deformation.
7. The dotted-crumple energy-absorbing steering intermediate shaft according to claim 6, characterized in that the dotted position of the spline tube (4) is located at the right end of the spline tube (4).
8. The dotting crush energy-absorbing steering intermediate shaft according to claim 7, characterized in that the dotting points on the spline tube (4) are of a hemispherical structure, and 4-8 dotting points are uniformly distributed on the spline tube (4) in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020567926.XU CN212373475U (en) | 2020-04-16 | 2020-04-16 | Dotting collapsing energy-absorbing steering intermediate shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020567926.XU CN212373475U (en) | 2020-04-16 | 2020-04-16 | Dotting collapsing energy-absorbing steering intermediate shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212373475U true CN212373475U (en) | 2021-01-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020567926.XU Active CN212373475U (en) | 2020-04-16 | 2020-04-16 | Dotting collapsing energy-absorbing steering intermediate shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212373475U (en) |
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2020
- 2020-04-16 CN CN202020567926.XU patent/CN212373475U/en active Active
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