High-performance and low-cost steering column
By designing a high-performance and low-cost steering pipe column including upper column pipe, lower column pipe, upper steering shaft, lower steering shaft, U-shaped bracket, handle, upper bottom plate and lower bottom plate, the steering pipe in the prior art is solved. The problems of long column R&D cycle and high cost have achieved cost control and safety improvement.
Patent Information
- Application Number
- CN202420840428.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-23
AI Technical Summary
The existing steering column has a long research and development cycle and is expensive, making it difficult to meet the automotive industry's demand for cost reduction and efficiency improvement.
A high-performance, low-cost steering column is designed, including upper column tube, lower column tube, upper steering shaft, lower steering shaft, U-shaped bracket, handle, upper bottom plate and lower bottom plate, through optimized structural design and material selection , reduce production costs and shorten R&D cycle.
It effectively reduces the R&D and production costs of steering columns, reduces the R&D cycle, and accurately controls the collapse force of the column collapse stroke, improving cost control and safety.
Smart Images
Figure CN222452327U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steering systems, in particular to a high-performance and low-cost steering column. Background Art
[0002] With the rapid development of the domestic automobile industry, the competition among OEMs and suppliers has become increasingly fierce. Reducing costs and increasing efficiency has become the primary goal of the current automobile industry. As an important part of the automobile steering system, the automobile steering column is indispensable for the vehicle's handling stability and passive safety performance. Therefore, developing a low-cost and high-performance steering column is of great significance to solving the current problem of long development cycle and high cost of steering columns. Summary of the invention
[0003] The utility model is to overcome the deficiencies of the prior art and provide a high-performance, low-cost steering column, so as to solve the problems of long research and development cycle and high cost of the current steering column.
[0004] To achieve the above purpose, a high-performance, low-cost steering column is designed, comprising an upper column tube, a lower column tube, an upper steering shaft, a lower steering shaft, a U-shaped bracket, a handle, an upper base plate, and a lower base plate, the front end of the lower column tube is embedded with the rear end of the upper column tube, the lower column tube and the upper column tube are provided with a lower steering shaft and an upper steering shaft, and the lower steering shaft is connected end to end with the upper steering shaft, characterized in that: the end of the lower column tube is connected to the lower base plate; U-shaped brackets are respectively provided on both sides of the front end of the lower column tube, the bottom of the U-shaped bracket is connected to the upper base plate, and the U-shaped brackets on both sides are connected to the handles through long bolts; a handle cam is sleeved on one side of the long bolt; the bottom of the upper column tube is connected to the axial soft limit through a rivet.
[0005] One end of the long bolt is connected to the handle and the handle cam, and the other end of the long bolt passes through the U-shaped brackets on both sides and is locked by nuts and washers.
[0006] Both ends of the long bolt are connected to the upper base plate through springs respectively.
[0007] The upper steering shaft and the lower steering shaft are respectively connected with the upper column tube and the lower column tube through interference fit via bearings.
[0008] The lower base plate and the upper base plate are on the same plane.
[0009] The upper base plate and the U-shaped bracket are connected by welding.
[0010] Compared with the prior art, the utility model provides a high-performance, low-cost steering column, which can effectively reduce the research and development and production costs of the steering column, shorten the development cycle of the steering column, and can accurately control the collapse force of the column collapse stroke, providing great reference value for cost control and safety improvement of the steering column. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the structure of the utility model.
[0012] Figure 2 This is an exploded view of the structure of the utility model.
[0013] Figure 3 It is a schematic diagram of the back side 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 Figures 1 to 3 As shown, the front end of the lower column tube 2 is embedded with the rear end of the upper column tube 1, and a lower steering shaft 4 and an upper steering shaft 3 are arranged in the lower column tube 2 and the upper column tube 1, and the lower steering shaft 4 is connected to the upper steering shaft 3 end to end, characterized in that: the end of the lower column tube 2 is connected to the lower base plate 5; U-shaped brackets 10 are respectively arranged on both sides of the front end of the lower column tube 2, the bottom of the U-shaped bracket 10 is connected to the upper base plate 6, and the U-shaped brackets 10 on both sides are connected to the handle 7 through a long bolt 8; a handle cam 9 is sleeved on one side of the long bolt 8; the bottom of the upper column tube 1 is connected to the axial soft limit 12 through a rivet.
[0016] One end of the long bolt 8 is connected to the handle 7 and the handle cam 9, and the other end of the long bolt 8 passes through the U-shaped brackets 10 on both sides and is locked by nuts and washers.
[0017] Both ends of the long bolt 8 are connected to the upper base plate 6 via springs.
[0018] The upper steering shaft 3 and the lower steering shaft 4 are respectively connected to the upper column tube 1 and the lower column tube 2 by interference fit through bearings 11 .
[0019] The lower base plate 5 and the upper base plate 6 are on the same plane.
[0020] The upper base plate 6 and the U-shaped bracket 10 are connected by welding.
[0021] like Figures 1 to 3 As shown, a high-performance, low-cost steering column includes: a collapse peak force contribution mechanism, a support mechanism, a column tube mechanism, an intermediate shaft mechanism and a clamping mechanism.
[0022] The column tube mechanism includes an upper column tube 1 and a lower column tube 2, the intermediate shaft mechanism includes an upper steering shaft 3 and a lower steering shaft 4, the supporting mechanism includes a lower base plate 5 and an upper base plate 6, the clamping mechanism includes a handle 7, a long bolt 8, a handle cam 9 and a U-shaped bracket 10, and the collapse peak force is composed of an axial soft limit 12 and a rivet.
[0023] Among them, the top of the upper steering shaft 3 is connected to the steering wheel and connected to the upper column tube 1 through the bearing 11. The bottom of the lower steering shaft 4 is connected to the intermediate shaft and connected to the lower column tube 2 through the bearing 11. The end of the lower column tube 2 is connected to the lower bottom plate 5 and connected to the upper bottom plate 6 through the clamping mechanism. The bearing pressing area of the upper column tube 1 adopts interference contact, and the top of the upper column tube 1 adopts a multi-anchor point pressing method to improve the bearing pull-off force. The lower column tube 2 is made of aluminum alloy and the bracket mechanism is made of steel, so as to improve the resonance frequency of the steering column and thus improve the control comfort of the steering column.
[0024] The upper base plate 6 and the U-shaped bracket 10 in the support mechanism are connected by welding, which is used for clamping the upper and lower column tubes. The upper and lower base plates are connected to the shield by bolts respectively. The U-shaped bracket 10 adopts a one-side weakening and one-side strengthening method to improve its clamping efficiency as much as possible without affecting the structural rigidity, and grooves are made in the weakened area to improve the clamping efficiency.
[0025] When the collapse begins, the upper column tube 1 drives the axial soft limiter 12 to move axially until it collides with the lower column tube 2. The stress accumulation shears the rivet to provide the collapse peak force. The long bolt 8 is used to connect the handle 7, the handle cam 9, the U-shaped bracket 10 and the lower column tube 2, and outputs the collapse continuous force by providing the clamping force.
[0026] The high-performance and low-cost steering column provided by the utility model can effectively reduce the research and development and production costs of the steering column, shorten the development cycle of the steering column, and can accurately control the collapse force of the column collapse stroke, providing great reference value for cost control and safety improvement of the steering column.
Claims
1. A high-performance, low-cost steering column, comprising an upper column tube, a lower column tube, an upper steering shaft, a lower steering shaft, a U-shaped bracket, a handle, an upper base plate, and a lower base plate, wherein the front end of the lower column tube (2) is embedded with the rear end of the upper column tube (1), the lower column tube (2) and the upper column tube (1) are provided with a lower steering shaft (4) and an upper steering shaft (3), and the lower steering shaft (4) is connected to the upper steering shaft (3) end to end, characterized in that: The end of the lower column tube (2) is connected to the lower base plate (5); U-shaped brackets (10) are respectively provided on both sides of the front end of the lower column tube (2); the bottom of the U-shaped bracket (10) is connected to the upper base plate (6); the U-shaped brackets (10) on both sides are connected to the handle (7) via a long bolt (8); a handle cam (9) is sleeved on one side of the long bolt (8); and the bottom of the upper column tube (1) is connected to the axial soft limit (12) via a rivet.
2. A high-performance, low-cost steering column according to claim 1, characterized in that: One end of the long bolt (8) is connected to the handle (7) and the handle cam (9), and the other end of the long bolt (8) passes through the U-shaped brackets (10) on both sides and is locked by a nut and a washer.
3. A high-performance, low-cost steering column according to claim 1 or 2, characterized in that: Both ends of the long bolt (8) are connected to the upper base plate (6) via springs.
4. A high-performance, low-cost steering column according to claim 1, characterized in that: The upper steering shaft (3) and the lower steering shaft (4) are respectively connected to the upper column tube (1) and the lower column tube (2) by interference fit via bearings (11).
5. A high-performance, low-cost steering column according to claim 1, characterized in that: The lower base plate (5) and the upper base plate (6) are on the same plane.
6. A high-performance, low-cost steering column according to claim 1 or 5, characterized in that: The upper base plate (6) and the U-shaped bracket (10) are connected by welding.