Improved electric control pipe column crumple energy absorption mechanism
By designing an independent electrostatic tube column collapse energy-absorbing mechanism, using an axial motor and limiting mechanism, combining a U-shaped energy-absorbing belt and fixing clip, the problem of the collapse mechanism affecting the overall performance in the prior art is solved, and the problem of the collapse mechanism affecting the overall performance is realized. Installed on the outside of the pipe string to meet the needs of long and short strokes and effectively absorb collision energy to ensure driver safety.
Patent Information
- Application Number
- CN202420403408.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-04
AI Technical Summary
When the existing electric-controller column collapse energy-absorbing mechanism meets the needs of different lengths and short strokes of the pipe column, it is easy to affect the overall mechanism performance and is installed on the upper and lower parts of the pipe column, which may interfere with the adjustment movement of the pipe column.
Design an independent electric tube column collapse energy-absorbing mechanism, including upper tube column, lower tube column, axial motor assembly, limit mechanism and energy suction belt, and drive the lead screw and limit position through the axial motor assembly The mechanism ensures smooth movement of the lead screw, and is installed on the outside of the column tube using a U-shaped energy-sucking belt and fixed clips to meet the needs of long and short strokes and avoid interference with the column adjustment.
It achieves meeting the length and short stroke requirements of the pipe column without affecting the structure of other parts and the overall mechanism performance, and effectively absorbs energy during collisions to ensure driver safety.
Smart Images
Figure CN222179619U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steering systems, in particular to an improved electric-adjustable column collapse energy-absorbing mechanism. Background Art
[0002] With the development of electrification in the automotive industry, the mechanical column in the steering system has also been innovated in the direction of electrification, from the original manual adjustment to electric adjustment. At the same time, there are new requirements for the length of the column, resulting in the concept of long-stroke and short-stroke electric adjustment columns, and the crush energy absorption mechanism has also been updated accordingly, but the market has higher and higher requirements for the performance of the electric adjustment column. This requires us to design a reasonable structure to meet market demand, which can not only meet the requirements of different column lengths, but also not affect the overall performance of the mechanism.
[0003] Usually, the collapse mechanism is designed to be installed on the upper column tube or the lower column tube. During the axial and radial adjustment of the column, it will follow the movement of the mechanism, but it cannot interfere with the adjustment movement of the column. In order to meet the coordination of the collapse mechanism with the upper and lower tubes, the structure of the upper and lower column tubes is usually adjusted accordingly, which may affect the performance. Summary of the invention
[0004] The utility model overcomes the deficiencies of the prior art and provides an improved electric control column collapse energy absorption mechanism. The rationally designed independent collapse mechanism does not affect the structure of other parts and does not affect the performance of the entire mechanism.
[0005] In order to achieve the above-mentioned purpose, an improved electric control column collapse energy absorption mechanism is designed, comprising an upper column, a lower column, and an axial motor assembly. The axial motor assembly comprises an axial motor, a screw, a screw nut, and a limiting mechanism. The axial motor shaft is connected to the screw, and the upper shaft of the screw is connected to the screw nut. The limiting mechanism is connected to the end of the screw. It is characterized in that: a lower column is sleeved on the outer side of the upper column tube, one end of the axial motor assembly is connected to one side of the lower column, and the other end of the axial motor assembly is connected to a base plate bracket. An energy absorption belt is provided on the inner side of the base plate bracket, and an energy absorption belt fixing clamp is connected to the outer side of the base plate bracket.
[0006] One end of the axial motor assembly is connected to one end of the lower pipe column through bolts, and the limiting mechanism at the other end of the axial motor assembly is connected to the other end of the lower pipe column through bolts.
[0007] The base plate support U-shaped frame structure has one end connected to the lead screw nut of the axial motor assembly by bolts, and the other end connected to the energy absorption belt fixing clamp by bolts.
[0008] The bottom of the base plate bracket is connected to the upper column tube through rivets.
[0009] The energy absorbing belt is a U-shaped bending structure. One side of the opening of one end of the energy absorbing belt is connected to the upper column tube by a rivet. A guide tube is arranged in the bending part of the other end of the energy absorbing belt, and both ends of the guide tube are connected to the base plate bracket by bolts respectively.
[0010] One end of the energy absorbing belt fixing clamp is a bent structure, and one end of the energy absorbing belt fixing clamp is bent at an opening at one end of the energy absorbing belt; the other end of the energy absorbing belt fixing clamp is connected to the other end of the bottom plate bracket through a bolt.
[0011] Compared with the prior art, the utility model provides an improved electrically adjustable column collapse energy absorption mechanism, which can be installed on the outside of the column tube, can meet the requirements of long and short strokes of the column, and occupies a small space; an axial lead screw limit mechanism is designed to ensure that the lead screw does not shake during movement; when a vehicle collides, the collapse mechanism effectively absorbs energy to ensure the safety of the driver. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the utility model.
[0013] Figure 2 This is an exploded view of the structure of the utility model. DETAILED DESCRIPTION
[0014] The utility model is further described below with reference to the accompanying drawings.
[0015] like Figure 1 , Figure 2 As shown, the axial motor assembly 4 includes an axial motor 4-3, a screw 4-4, a screw nut 4-1, and a limiting mechanism 4-2. The axial motor 4-3 is connected to the screw 4-4, the upper axis of the screw 4-4 is connected to the screw nut 4-1, and the end of the screw 4-4 is connected to the limiting mechanism 4-2; the outer side of the upper column tube 2 is sleeved with a lower column 1, one side of the lower column 1 is connected to one end of the axial motor assembly 4, and the other end of the axial motor assembly 4 is connected to the base plate bracket 3, the inner side of the base plate bracket 3 is provided with an energy absorption belt 6, and the outer side of the base plate bracket 3 is connected to the energy absorption belt fixing clamp 7.
[0016] One end of the axial motor assembly 4 is connected to one end of the lower pipe column 1 through bolts, and the limiting mechanism 4-2 at the other end of the axial motor assembly 4 is connected to the other end of the lower pipe column 1 through bolts.
[0017] The base plate bracket 3 has a U-shaped frame structure, one end of the base plate bracket 3 is connected to the screw nut 4-1 of the axial motor assembly 4 through bolts, and the other end of the base plate bracket 3 is connected to the energy absorption belt fixing clamp 7 through bolts.
[0018] The bottom of the base plate bracket 3 is connected to the upper column tube 2 through rivets.
[0019] The energy absorbing belt 6 is a U-shaped bending structure. One side of the opening of one end of the energy absorbing belt 6 is connected to the upper column tube 2 by a rivet. A guide tube 5 is provided in the bending part of the other end of the energy absorbing belt 6, and both ends of the guide tube 5 are respectively connected to the base plate bracket 3 by bolts.
[0020] One end of the energy absorbing band fixing clamp 7 is a bent structure, and one end of the energy absorbing band fixing clamp 7 is bent at an opening at one end of the energy absorbing band 6; the other end of the energy absorbing band fixing clamp 7 is connected to the other end of the bottom plate bracket 3 by a bolt.
[0021] When the utility model works normally, the axial motor assembly 4 drives the bottom plate bracket 3 to move axially through the lead screw 4-4 and the lead screw nut 4-1. The end of the lead screw 4-4 is equipped with a limit mechanism 4-2 to ensure that the lead screw 4-4 is parallel to the central axis of the upper column tube 2 to prevent the lead screw 4-4 from jumping and affecting the axial movement. The bottom plate bracket 3 is fixed to the upper column tube 2 by two rivets, and the energy absorption belt 6 is fixed to the upper column tube 2 by a stronger rivet. When the car collapses and absorbs energy, the upper column tube 2 moves downward, and the two rivets on the bottom plate bracket 3 are sheared and broken to generate peak force. The bottom plate bracket 3 is assembled with the lead screw 4-4 and does not move. After that, the upper column tube 2 continues to drive the energy absorption belt 6 to move downward through the stronger rivet. The energy absorption belt 6 is gradually straightened from the bent state to generate continuous force. Because there are energy absorption belt fixing clamps 7 and guide tubes 5, the energy absorption belt 6 can be guaranteed to run smoothly.
[0022] The utility model implements the assembly process as follows: insert the upper column tube 2 into the lower column tube 1, fix the bottom plate bracket 3 on the upper column tube 2 with rivets, then fix the energy absorbing belt 6 on the upper column tube 2 with rivets, fix the energy absorbing belt 6 with the energy absorbing belt fixing clamp 7 with bolts, fix the guide tube 5 on the bottom plate bracket 3 with bolts, and finally install the axial motor assembly 4. The energy absorbing belt 6 is fixed on the upper column tube 2, and can also be fixed with bolts to ensure a firm installation.
[0023] The utility model discloses a mechanism for collapsing and absorbing energy in the event of a collision, and can be installed on the outside of a column tube, so as to meet the requirements of a long or short stroke of the column and occupy a small space. An axial lead screw limiting mechanism is designed to ensure that the lead screw does not shake during movement. When a vehicle collides, the collapsing mechanism effectively absorbs energy to ensure the safety of the driver.
Claims
1. An improved electric control column collapse energy absorption mechanism, comprising an upper column, a lower column, and an axial motor assembly, wherein the axial motor assembly (4) comprises an axial motor (4-3), a lead screw (4-4), a lead screw nut (4-1), and a limit mechanism (4-2), wherein the axial motor (4-3) is connected to the lead screw (4-4), the upper axis of the lead screw (4-4) is connected to the lead screw nut (4-1), and the end of the lead screw (4-4) is connected to the limit mechanism (4-2), characterized in that: A lower column (1) is sleeved on the outer side of the upper column tube (2); one end of the axial motor assembly (4) is connected to one side of the lower column (1); the other end of the axial motor assembly (4) is connected to a base plate bracket (3); an energy absorption belt (6) is provided on the inner side of the base plate bracket (3); and an energy absorption belt fixing clamp (7) is connected to the outer side of the base plate bracket (3).
2. The improved electric control column collapse energy absorption mechanism according to claim 1, characterized in that: One end of the axial motor assembly (4) is connected to one end of the lower pipe column (1) via bolts, and the limiting mechanism (4-2) at the other end of the axial motor assembly (4) is connected to the other end of the lower pipe column (1) via bolts.
3. The improved electric control column collapse energy absorption mechanism according to claim 1, characterized in that: The base plate bracket (3) has a U-shaped frame structure, one end of the base plate bracket (3) is connected to the lead screw nut (4-1) of the axial motor assembly (4) via a bolt, and the other end of the base plate bracket (3) is connected to the energy absorption belt fixing clamp (7) via a bolt.
4. An improved electrically adjustable column collapse energy absorption mechanism according to claim 1 or 3, characterized in that: The bottom of the base plate bracket (3) is connected to the upper column tube (2) via rivets.
5. The improved electric control column collapse energy absorption mechanism according to claim 1, characterized in that: The energy absorbing belt (6) is a U-shaped bent structure. One side of an opening at one end of the energy absorbing belt (6) is connected to the upper column tube (2) via a rivet. A guide tube (5) is provided in the bent portion at the other end of the energy absorbing belt (6), and both ends of the guide tube (5) are connected to the bottom plate bracket (3) via bolts.
6. The improved electric control column collapse energy absorption mechanism according to claim 1, characterized in that: One end of the energy absorbing band fixing clamp (7) is a bent structure, and one end of the energy absorbing band fixing clamp (7) is bent at an opening at one end of the energy absorbing band (6); the other end of the energy absorbing band fixing clamp (7) is connected to the other end of the bottom plate bracket (3) via a bolt.