Novel intelligent steer-by-wire input shaft

Abstract

The utility model provides a novel intelligent steer-by-wire input shaft, and belongs to the technical field of automobile accessories. The problem that an existing steer-by-wire input shaft is low in production efficiency is solved. The novel intelligent steer-by-wire input shaft comprises a middle shaft, a square shaft rod is welded to the right side of the middle shaft, a connecting end rod is inserted into the left side of the middle shaft, positioning blocks are welded to the top and the bottom of the right side of the connecting end rod, each positioning block comprises a fixing shell, a supporting sliding plate is slidably connected to an inner cavity of each fixing shell, and a supporting spring is fixedly connected to the inner side of each supporting sliding plate; positioning pins are welded to the outer sides of the supporting sliding plates. The utility model has the advantages that the processing procedures are reduced, the production efficiency is improved, the input shaft can be detached and replaced, and the replacement cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, and relates to a steering accessory, in particular to a novel intelligent steer-by-wire steering input shaft. BACKGROUND

[0002] Steer-by-wire steering is a technology that converts the operation signal of a driver on a steering wheel into an electric signal, which is then transmitted to a steering mechanism, so as to control the corresponding steering action of a wheel, which completely cancels the physical connection between the steering wheel and the wheel and controls the steering of the wheel through an electric signal.

[0003] In a steer-by-wire steering system, the input shaft usually refers to the rotating shaft of the steering wheel, but it is no longer directly mechanically connected to the steering mechanism, but transmits the steering intention through a sensor and an electric control unit, the input shaft is connected with the steering wheel and is equipped with a torque sensor and an angle sensor for detecting the steering input of the driver, and the current steer-by-wire input shaft adopts a spline structure, the part is subjected to quenching and tempering treatment after cold upsetting of a blank to improve the strength, and the spline part is subjected to milling processing, so that the machining process of the part is long, the production efficiency is low, and the cost is high, and meanwhile, the traditional input shaft is of an integral molding structure, and the connecting end cannot be disassembled, so that when the connecting end is replaced, the whole input shaft needs to be replaced, the connecting end cannot be separately disassembled and replaced, and the replacement cost is increased. SUMMARY

[0004] The utility model aims at the above problems existing in the prior art, and provides a novel intelligent steer-by-wire steering input shaft which has the advantages of reducing machining processes, improving production efficiency, allowing the input shaft to be disassembled and replaced, and effectively reducing replacement cost.

[0005] The utility model discloses a novel intelligent steer-by-wire steering input shaft, including the axle, the right side welding of axle has four square shaft rod, the left side of axle inserts and has the connecting end rod, the top and bottom of connecting end rod right side all welds and has the locating block, the locating block includes fixed shell, the inner chamber sliding connection of fixed shell has the support slide, the inboard fixed connection of support slide has the support spring, the outside welding of support slide has the locating pin.

[0006] The novel intelligent steer-by-wire steering input shaft mainly sets up the axle, four square shaft rod, connecting end rod, locating slot, locating opening, installation plug-in block and locating block, and can reduce machining processes, improve production efficiency, allow the input shaft to be disassembled and replaced, and effectively reduce replacement cost through the axle, four square shaft rod, connecting end rod, locating slot, locating opening, installation plug-in block and locating block.

[0007] In the new intelligent steer-by-wire input shaft, the top and bottom of the left side of the middle shaft are provided with positioning slots, and the outer side of the inner cavity of the positioning slot is provided with a positioning opening.

[0008] In the new intelligent steer-by-wire input shaft, the middle part of the left side of the middle shaft is provided with a limiting slot, and the outer side of the positioning pin penetrates the fixing shell and the middle shaft in sequence.

[0009] In the new intelligent steer-by-wire input shaft, the outer side of the positioning pin is provided with a chamfer, and the front and rear sides of the four square shaft rod are provided with positioning grooves.

[0010] In the new intelligent steer-by-wire input shaft, the middle part of the right side of the connecting end rod is welded with a mounting plug, and the right side of the mounting plug is provided with a chamfer.

[0011] In the new intelligent steer-by-wire input shaft, the connecting end rod comprises a connecting seat, the left side of the connecting seat is welded with a connecting plug plate, and the right side of the connecting plug plate is provided with a connecting groove.

[0012] Compared with the prior art, the new intelligent steer-by-wire input shaft has the advantages of reducing machining processes, improving production efficiency, being capable of replacing the input shaft, and effectively reducing replacement cost. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the side view of the new intelligent steer-by-wire input shaft.

[0014] Figure 2 is the left side view of the new intelligent steer-by-wire input shaft.

[0015] Figure 3 is the rear right side view of the new intelligent steer-by-wire input shaft.

[0016] Figure 4 is the cross-sectional view of the new intelligent steer-by-wire input shaft.

[0017] Figure 5 is the rear view of the new intelligent steer-by-wire input shaft.

[0018] In the figure: 1, the central axis; 2, four square shaft rod; 3, connecting end rod; 4, positioning slot; 5, limiting slot; 6, positioning slot; 7, positioning opening; 8, mounting plug; 9, positioning block; 10, fixed shell; 11, support slide plate; 12, positioning pin; 13, support spring; 14, connecting seat; 15, connecting slot; 16, connecting plugboard. DETAILED DESCRIPTION

[0019] The following is a specific embodiment of the present application and further describes the technical scheme of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0020] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 indicated, the new intelligent steer-by-wire input shaft includes a central axis 1, the right side of the central axis 1 is welded with a four square shaft rod 2, the left side of the central axis 1 is inserted with a connecting end rod 3, the top and bottom of the right side of the connecting end rod 3 are both welded with a positioning block 9, the positioning block 9 includes a fixed shell 10, the inner cavity of the fixed shell 10 is slidingly connected with a support slide plate 11, the inner side of the support slide plate 11 is fixedly connected with a support spring 13, and the outer side of the support slide plate 11 is welded with a positioning pin 12.

[0021] Further, the top and bottom of the left side of the central axis 1 are both provided with a positioning slot 6, and the outer side of the inner cavity of the positioning slot 6 is provided with a positioning opening 7. The middle of the left side of the central axis 1 is provided with a limiting slot 5, and the outer side of the positioning pin 12 penetrates the fixed shell 10 and the central axis 1 in sequence.

[0022] The outer side of the positioning pin 12 is provided with a chamfer, and the front and back sides of the four square shaft rod 2 are both provided with a positioning slot 4. The middle of the right side of the connecting end rod 3 is welded with a mounting plug 8, and the right side of the mounting plug 8 is provided with a chamfer. The connecting end rod 3 includes a connecting seat 14, the left side of the connecting seat 14 is welded with a connecting plugboard 16, and the right side of the connecting plugboard 16 is provided with a connecting slot 15.

[0023] In actual manufacturing, the traditional input shaft adopts spline structure adjustment to four square shaft rod 2 structure, directly adopts cold heading forming, and according to the deformation of the material, the four square structure is designed to meet the strength requirement after cold heading, canceling the quenching and tempering treatment, effectively reducing the machining process, improving the production efficiency and reducing the cost. When the hole diameter of the connecting slot 15 on the connecting plug plate 16 cannot meet the installation requirements and needs to be replaced, the positioning pin 12 on the upper and lower sides is pushed inward to move out of the positioning opening 7, then the connecting plug plate 16 is pulled to the left to separate the connecting seat 14 from the middle shaft 1, then the connecting end rod 3 meeting the hole diameter requirement is taken out, the installation plug 8 and the positioning block 9 on the right side of the new connecting seat 14 are respectively aligned with the limiting slot 5 and the positioning slot 6 on the middle shaft 1 and are pushed inward with force, when completely inserted, the supporting spring 13 releases the elastic force to push the positioning pin 12 into the positioning opening 7 for installation and positioning, so that the connecting end rod 3 can be replaced alone, without the need to replace the entire input shaft, effectively reducing the replacement cost.

[0024] The contents not described in detail in the specification belong to the prior art known to those skilled in the art. The specific embodiments described herein are only illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

Claims

1. A new intelligent steer-by-wire input shaft comprising a middle shaft (1), characterized in that: The right side of the middle shaft (1) is welded with a square shaft rod (2), the left side of the middle shaft (1) is inserted with a connecting end rod (3), the top and bottom of the right side of the connecting end rod (3) are welded with positioning blocks (9), the positioning block (9) comprises a fixed shell (10), the inner cavity of the fixed shell (10) is slidably connected with a supporting slide plate (11), the inner side of the supporting slide plate (11) is fixedly connected with a supporting spring (13), and the outer side of the supporting slide plate (11) is welded with a positioning pin (12).

2. A novel steer-by-wire input shaft according to claim 1, characterized in that: The top and bottom of the left side of the middle shaft (1) are provided with positioning insertion grooves (6), and the outer side of the inner cavity of the positioning insertion groove (6) is provided with a positioning opening (7).

3. A novel steer-by-wire input shaft according to claim 1, characterized in that: The middle part of the left side of the middle shaft (1) is provided with a limiting insertion groove (5), and the outer side of the positioning pin (12) penetrates the fixed shell (10) and the middle shaft (1) in sequence.

4. A novel steer-by-wire input shaft according to claim 1, characterized in that: The outer side of the positioning pin (12) is provided with a chamfer, and the front and rear sides of the square shaft rod (2) are provided with positioning grooves (4).

5. A novel steer-by-wire input shaft according to claim 1, wherein: The middle part of the right side of the connecting end rod (3) is welded with a mounting insertion block (8), and the right side of the mounting insertion block (8) is provided with a chamfer.

6. A novel steer-by-wire input shaft according to claim 1, characterized in that: The connecting end rod (3) comprises a connecting seat (14), the left side of the connecting seat (14) is welded with a connecting insertion plate (16), and the right side of the connecting insertion plate (16) is provided with a connecting groove (15).

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