CN214451265U

CN214451265U - Novel electric power steering column

Info

Publication number: CN214451265U
Application number: CN202022177013.XU
Authority: CN
Inventors: 郭海林
Original assignee: Direction Intelligent Technology Ganzhou Co ltd
Current assignee: Direction Intelligent Technology Ganzhou Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-10-22
Anticipated expiration: 2030-09-28

Abstract

The utility model relates to the technical field, it discloses a novel electronic power assisted steering tubular column, has solved the unable installation angle sensor's of present electronic power assisted steering tubular column technical problem, including end cover and box, end cover and the mutual screw fixation of box and both internally mounted have supporting disk, integral key shaft, supporting disk bearing, moment of torsion angle sensor, input shaft, moment of torsion angle sensor stator, worm wheel, worm and output shaft, integral key shaft, input shaft and output shaft coaxial fixation, supporting disk bearing, moment of torsion angle sensor stator and worm wheel cover are established and are fixed week side of integral key shaft, input shaft and output shaft, the worm with the worm wheel meshing. According to the technical scheme, the angle sensor is installed in the small-speed-ratio speed reducer, so that the low-speed-ratio angle signal is output to achieve the purpose.

Description

Novel electric power steering column

Technical Field

The utility model relates to an electronic power assisted steering system technical field of car, more specifically say, it relates to a novel electronic power assisted steering tubular column.

Background

The traditional electric power steering column with the Hall sensor cannot realize angle signals, cannot install the sensor of the angle signals, and needs to redesign a product structure along with a large amount of requirements of angle signal electric power steering of market commercial vehicles, so that low-speed ratio angle signal output is realized.

SUMMERY OF THE UTILITY MODEL

The technical problem to the unable installation angle sensor of traditional electronic power assisted steering tubular column that provides in the background art, the utility model relates to a novel electronic power assisted steering tubular column structure packs into angle sensor little velocity ratio speed reducer into, realizes low velocity ratio angle signal output to the purpose that reaches.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a novel electronic power assisted steering column, includes end cover and box, end cover and the mutual screw fixation of box and both internally mounted have supporting disk, integral key shaft, supporting disk bearing, moment of torsion angle sensor, input shaft, moment of torsion angle sensor stator, worm wheel, worm and output shaft, integral key shaft, input shaft and the coaxial fixed of output shaft, supporting disk bearing, moment of torsion angle sensor stator and worm wheel cover establish and fix all sides of integral key shaft, input shaft and output shaft, the worm with the worm wheel meshing.

Through the technical scheme, the structure is by the worm wheel, the worm, the output shaft, the input shaft, the integral key shaft, the box, the end cover, part constitutions such as supporting disk, be on original small velocity ratio speed reducer structure basis, modify the input shaft locating surface, cooperation sensor body realizes welded mounting, increase the stator position sleeve on the worm wheel shaft, realize sensor rotor welded mounting structure, modify small velocity ratio end cover structure, increase the end cover space, different grade type sensor structure space and sensor location have been considered simultaneously, realize the structure that many sensors share, newly-increased supporting disk location, improve the input shaft concentricity, guarantee the worm wheel, worm meshing stability, realize reducing gear box grease backflow sensor simultaneously, avoid the sensor to damage, the supporting disk considers the constant head tank structure is markd to the polymorphic type sensor simultaneously, multi-sensor calibration has been realized.

Secondly, according to the structure of the angle sensor, an end cover, an input shaft and an output shaft are modified on the small-speed-ratio speed reducer, a supporting plate is added, and the angle sensor is installed in the speed reducer to achieve angle output. The output of a small speed ratio angle is realized, the cost is low, and the space structure of the vehicle body is saved.

The utility model discloses further set up to: the side of the box body is provided with an integrated worm box, and the worm wheel is arranged in the worm box.

Through above-mentioned technical scheme, set up the worm case, be convenient for install the worm.

The utility model discloses further set up to: the periphery of the supporting disc is provided with a fixing hole, and the supporting disc is fixed with the end cover by using the fixing hole.

Through above-mentioned technical scheme, realize the fixed to the supporting disk to let the supporting disk can play supporting role. And the newly-added supporting disk is positioned, the concentricity of the input shaft is improved, and the meshing stability of the worm wheel and the worm is ensured.

The utility model discloses further set up to: the supporting disk bearing is a rolling bearing and is arranged in the supporting disk.

Through the technical scheme, the rolling bearing has good rotating effect and low cost.

The utility model discloses further set up to: the torque angle sensor and the torque angle sensor stator are connected together in a matched mode.

To sum up, the utility model discloses following beneficial effect has:

(1) the angle sensor is arranged in the reduction box to realize angle output;

(2) the output of a small speed ratio angle is realized, and the cost is low;

(3) the space structure of the vehicle body is saved.

Drawings

FIG. 1 is a schematic view of an overall three-dimensional structure of an electric power steering column;

fig. 2 is a schematic diagram of an explosion structure of the electric power steering column.

Reference numerals: 1. an end cap; 2. a box body; 21. a worm case; 3. a support disc; 31. a fixing hole; 4. a spline shaft; 5. a support disc bearing; 6. a torque angle sensor; 7. an input shaft; 8. a torque angle sensor stator; 9. a worm gear; 10. a worm; 11. and an output shaft.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

The utility model provides a novel electronic power assisted steering column, as shown in fig. 1 and fig. 2, including end cover 1 and box 2, end cover 1 and the mutual screw fixation of box 2 and both internally mounted have a supporting disk 3, integral key shaft 4, supporting disk bearing 5, moment of torsion angle sensor 6, input shaft 7, moment of torsion angle sensor stator 8, worm wheel 9, worm 10 and output shaft 11, integral key shaft 4, input shaft 7 and the coaxial fixed of output shaft 11, supporting disk 3, supporting disk bearing 5, moment of torsion angle sensor 6, moment of torsion angle sensor stator 8 and worm wheel 9 cover are established and are fixed at integral key shaft 4, the week side of input shaft 7 and output shaft 11, worm 10 and worm wheel 9 mesh.

This structure is by worm wheel 9, worm 10, output shaft 11, input shaft 7, integral key shaft 4, box 2, end cover 1, part constitutions such as supporting disk 3, be on original small velocity ratio speed reducer structure basis, modify the input shaft locating surface, cooperation sensor body realizes the welding installation, increase stator position sleeve on the worm wheel axle, realize sensor rotor welding mounting structure, modify small velocity ratio end cover structure, increase the end cover space, different grade type sensor structure space and sensor location have been considered simultaneously, realize the structure that the multisensor shares, newly-increased supporting disk 3 is fixed a position, improve input shaft 7 concentricity, guarantee worm wheel 9, worm 10 meshing stability, realize the reducing gear box grease and flow backward the sensor simultaneously, avoid the sensor to damage, supporting disk 3 considers the constant head tank structure of calibrating of multiclass sensor simultaneously, multi-sensor calibration has been realized.

An integral worm case 21 is provided on the peripheral side of the case 2, and the worm 9 is provided in the worm case 21. The periphery of the support plate 3 is provided with a fixing hole 31, and the support plate 3 is fixed with the end cover 1 by the fixing hole 31.

Support disk bearing 5 is antifriction bearing, and support disk bearing 5 installs in supporting disk 3. The torque angle sensor 6 and the torque angle sensor stator 8 are connected together in a matching mode.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A novel electric power-assisted steering column is characterized by comprising an end cover (1) and a box body (2), the end cover (1) and the box body (2) are mutually fixed by screws, a supporting plate (3), a spline shaft (4), a supporting plate bearing (5), a torque angle sensor (6), an input shaft (7), a torque angle sensor stator (8), a worm wheel (9), a worm (10) and an output shaft (11) are arranged in the end cover and the box body, the spline shaft (4), the input shaft (7) and the output shaft (11) are coaxially fixed, supporting disk (3), supporting disk bearing (5), torque angle sensor (6), torque angle sensor stator (8) and worm wheel (9) cover are established and are fixed week side of integral key shaft (4), input shaft (7) and output shaft (11), worm (10) with worm wheel (9) meshing.

2. A novel electric power steering column according to claim 1, wherein: the periphery of the box body (2) is provided with an integrated worm box (21), and the worm wheel (9) is arranged in the worm box (21).

3. A novel electric power steering column according to claim 1, wherein: the periphery of the supporting disc (3) is provided with a fixing hole (31), and the supporting disc (3) is fixed with the end cover (1) through the fixing hole (31).

4. A novel electric power steering column according to claim 1, wherein: the supporting disk bearing (5) is a rolling bearing, and the supporting disk bearing (5) is installed in the supporting disk (3).

5. A novel electric power steering column according to claim 1, wherein: the torque angle sensor (6) and the torque angle sensor stator (8) are connected together in a matched mode.