CN219749916U - Direction coil pipe column of electric steering vehicle - Google Patents
Direction coil pipe column of electric steering vehicle Download PDFInfo
- Publication number
- CN219749916U CN219749916U CN202321103334.2U CN202321103334U CN219749916U CN 219749916 U CN219749916 U CN 219749916U CN 202321103334 U CN202321103334 U CN 202321103334U CN 219749916 U CN219749916 U CN 219749916U
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- shaft
- pipe column
- hollow cylinder
- steering
- gear
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- 238000013016 damping Methods 0.000 claims abstract description 26
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
A steering column for an electric power steering vehicle, comprising: the pipe column component comprises a pipe column shell and a pipe column central shaft, and the flange component comprises an upper flange plate, a lower flange hollow cylinder and an annular gear; the upper flange plate is connected with the lower flange hollow cylinder, the inner gear ring is rotatably positioned in the lower flange hollow cylinder, the angle sensor comprises a body and a rotor shaft, the pipe column shell is fixedly connected with the upper end face of the upper flange, and the lower end of the pipe column central shaft is connected with a gear; the inner gear ring is meshed with the gear; a locating pin is arranged on the inner gear ring, two limiting blocks are symmetrically arranged on two sides of the gear, the two limiting blocks are fixed on the lower end face of the upper flange, and the locating pin and the limiting blocks are matched to limit the maximum steering angle of the electric steering vehicle; the center of the inner gear ring is penetrated with a vertical shaft, and the upper end of the vertical shaft is connected with the rotor shaft; the lower end of the vertical shaft rotatably passes through the center of the lower flange hollow cylinder and is connected with a damping component. The utility model has simple structure and compact size.
Description
Technical Field
The utility model relates to the technical field of electric vehicles, in particular to a steering wheel column of an electric steering vehicle.
Background
The steering wheel of the electric steering vehicle drives an angle sensor through the steering wheel, a steering angle signal of the steering wheel is transmitted to a control system, and the control system controls a steering motor to realize steering wheel rotation. For example: CN202011621105 discloses an electric steering system, a steering control method and an electric forklift, wherein the angle sensor is a single circle, and the steering wheel can only realize left turning less than 180 degrees and right turning less than 180 degrees when controlling the steering of the vehicle, which is not beneficial to precisely and slowly controlling the rotation of the steering wheel. In addition, there is also a technique of realizing a multi-turn rotation of the steering wheel by a steering angle transmission, and the angle sensor is a single-turn rotation, for example, "CN201721848197 a steering wheel system", "CN202123233780 a steering simulator steering structure". However, these structures are relatively complex and costly.
Disclosure of Invention
The utility model aims to provide a steering wheel pipe column of an electric steering vehicle, which has simple structure and compact size.
In order to solve the problems, the utility model adopts the following technical scheme:
a steering column for an electric power steering vehicle, the steering column comprising:
the pipe column assembly comprises a pipe column shell and a pipe column central shaft, wherein the pipe column central shaft is rotatably arranged in the pipe column shell in a penetrating mode, and a steering wheel is arranged at the upper end of the pipe column central shaft;
the flange component comprises an upper flange plate, a lower flange hollow cylinder and an annular gear; the upper flange plate is connected with the lower flange hollow cylinder, the inner gear ring is rotatably positioned in the lower flange hollow cylinder, and the upper flange plate is provided with a central hole and an offset hole;
the angle sensor comprises a body and a rotor shaft, wherein the body is fixed on the upper end face of the upper flange plate, and the rotor shaft penetrates through the central hole;
the pipe column shell is fixedly connected to the upper end face of the upper flange, and the lower end of the pipe column central shaft penetrates through the deviation hole and is connected with a gear;
the inner gear ring is meshed with the gear; the positioning pin is matched with the limiting block to limit the maximum steering angle of the electric steering vehicle;
a vertical shaft is arranged in the center of the inner gear ring in a penetrating way, and the upper end of the vertical shaft is connected with the rotor shaft;
the lower end of the vertical shaft rotatably penetrates through the center of the lower flange hollow cylinder and is connected with a damping component.
Preferably, the upper end and the lower end of the vertical shaft are respectively connected with a bearing, so that the annular gear is supported at the center of the lower flange hollow cylinder;
the upper end and the lower end of the vertical shaft are respectively provided with a flat surface, the shaft end of the rotor shaft is also provided with a flat surface, and the upper end of the vertical shaft is connected with the shaft end of the rotor shaft through a coupler.
Preferably, the lower end face of the lower flange hollow cylinder is provided with a shoulder; the damping assembly comprises a damping sheet and a gasket, the damping sheet is sleeved on the shoulder, the lower end of the vertical shaft penetrates through the damping sheet and enables the flat surface of the vertical shaft to be fixedly connected with the gasket, and the gasket is tightly pressed on the damping sheet.
Preferably, when the electric power steering vehicle travels straight, the center of the positioning pin, the center of the ring gear, and the center of the gear are positioned on the same straight line.
The utility model has the advantages that:
the steering wheel pipe column of the electric steering vehicle has the advantages of simple and firm structure and compact size; the steering wheel control habit of the traditional vehicle is close to that of the steering wheel, and the steering wheel can rotate for multiple turns.
Drawings
FIG. 1 is a partially exploded view of a steering column of an electric steering vehicle of the present utility model;
FIG. 2 is a partially exploded view of a steering column of an electric steering vehicle of the present utility model, showing primarily a flange assembly;
FIG. 3 is a partially exploded schematic illustration of a steering column of an electric steering vehicle of the present utility model, showing primarily a flange assembly and an angle sensor;
FIG. 4 is a partially exploded schematic illustration of a steering column of an electric steering vehicle of the present utility model, showing primarily the damping assembly;
fig. 5 is a schematic view of a partial structure of a steering column of an electric steering vehicle according to the present utility model, which mainly shows a relative positional relationship of a positioning pin, a gear, an inner gear ring, and two stoppers.
Detailed Description
The steering coil column of the electric steering vehicle provided in this embodiment includes: a tubular string assembly 10, a flange assembly 20, an angle sensor 30, and a damping assembly 40.
Referring to fig. 1 to 5, a main structure of a steering column of an electric power steering vehicle is exemplarily shown. The column assembly 10 comprises a column housing 11 and a column center shaft 12, wherein the column center shaft 12 is rotatably arranged in the column housing 11 in a penetrating manner, and a steering wheel 50 is arranged at the upper end of the column center shaft 12. Specifically, the column center shaft 12 passes through the center of the column housing 11, and is supported on the column by a bearing inside the column. The steering wheel 50 is installed on the upper end of the column center shaft 12, the column center shaft 12 can be driven to rotate together by rotating the steering wheel 50, and the column housing 11 is fixed.
The flange assembly 20 includes an upper flange plate 21, a lower flange hollow cylinder 22, and an annular gear 23. The upper flange plate 21 is connected with the lower flange hollow cylinder 22, and the inner gear ring 23 is rotatably positioned in the lower flange hollow cylinder 22. I.e. the upper flange 21 and the lower flange hollow cylinder 22 are assembled into a housing, in which the ring gear 23 is located. Specifically, a positioning spigot is arranged at the upper opening of the lower flange hollow cylinder 22, and the lower flange hollow cylinder 22 and the upper flange plate 21 are installed into a shell through the positioning spigot by using screws, elastic pads and flat pads.
The upper flange 21 has a central aperture 24 and offset apertures 25. The column casing 11 is fixedly connected to the upper end face of the upper flange plate 21, and the lower end of the column central shaft 12 passes through the offset hole 25 and is connected with a gear 26. Specifically, a gear 26 is mounted on the lower end of the central shaft 12 of the pipe column by a flat key 27 for transmitting the movement of the steering wheel 50, and the shaft head is positioned by a snap spring 28. The ring gear 23 meshes with the gear 26 to form an internally meshed gear set.
The inner gear ring 23 is provided with a positioning pin 29, two limiting blocks 51 are symmetrically arranged on two sides of the gear 26, the two limiting blocks 51 are fixed on the lower end face of the upper flange plate 21, and the positioning pin 29 and the limiting blocks 51 are matched to limit the maximum steering angle of the electric steering vehicle. Two limiting blocks 51 are respectively arranged on the lower end face of the upper flange plate 21 by bolts 56, and the two limiting blocks 51 are symmetrically arranged on two sides of the gear 26. Specifically, a positioning pin 29 is installed inside the ring gear 23, and the positioning pin 29 is fixed inside the ring gear 23 by a screw 56. The positioning pin 29, the gear 26 and the two limiting blocks 51 are positioned relative to the central shaft 12 of the pipe column and the annular gear 23 as shown in fig. 5, when the vehicle is straight, the center of the positioning pin 29, the center of the gear 26 and the center of the annular gear 23 are positioned on the same straight line, and the two limiting blocks 51 are symmetrically positioned on two sides of the straight line and are close to the gear 26. When the steering wheel 50 rotates clockwise, the ring gear 23 rotates clockwise together with the positioning pin 29; when the steering wheel 50 rotates counterclockwise, the ring gear 23 rotates counterclockwise together with the positioning pin 29. When the positioning pin 29 is rotated to the stopper 51 position, the vehicle steering wheel reaches the maximum position of the left-right steering.
The angle sensor 30 comprises a body and a rotor shaft, the body is fixed on the upper end face of the upper flange plate 21, the rotor shaft penetrates through the center hole 24, a vertical shaft 52 penetrates through the center of the inner gear ring 23, and the upper end of the vertical shaft 52 is connected with the rotor shaft. Specifically, the upper end surface of the upper flange 21 is fitted with the body of the angle sensor 30, the body of the angle sensor 30 is mounted on the bracket 53 using nuts 57, and the bracket 53 is mounted on the upper flange 21 using flat pads, spring pads, screws. The ring gear 23 is fixed on the vertical shaft 52.
The vertical shaft 52 has upper and lower ends connected to bearings 54, respectively, so that the ring gear 23 is supported at the center of the housing formed by the lower flange hollow cylinder 22 and the upper flange 21. The upper and lower ends of the vertical shaft 52 have flat surfaces, and the shaft ends of the rotor shaft have flat surfaces, and the upper end of the vertical shaft 52 is connected to the shaft ends of the rotor shaft through a coupling 55. The ring gear 23 reduces the rotation angle of the steering wheel 50 through the coupling 55 and transmits the reduced rotation angle to the angle sensor 30, and the angle sensor 30 transmits an angle signal of the rotation of the steering wheel 50 to a controller for controlling the movement of the steering motor.
The lower end of the vertical shaft 52 rotatably passes through the center of the lower flange hollow cylinder 22 and is connected to a damping assembly 40. The lower end face of the lower flange hollow cylinder 22 has a shoulder. The damping assembly 40 comprises a damping sheet 41 and a gasket 42, the damping sheet 41 is sleeved on the shoulder, the lower end of the vertical shaft 52 penetrates through the damping sheet 41 and enables the flat surface of the vertical shaft to be fixedly connected with the gasket 42, and the gasket 42 is tightly pressed on the damping sheet 41. Specifically, the lower end of the vertical shaft 52 extends out of the lower flange hollow cylinder 22, the lower end of the vertical shaft 52 is provided with a flat connection surface, the flat surface is provided with a gasket 42 matched with the flat surface, the damping sheet 41 is sleeved on a shoulder at the lower part of the flange hollow cylinder 22, a group of disc springs 43 are arranged below the gasket 42, a flat pad 44 is arranged below the disc springs 43, two lock nuts 45 compress the damping sheet 41 on the shoulder at the lower part of the flange hollow cylinder 22 through the flat pad 44, the disc springs 24 and the gasket 42, and when the annular gear 23 rotates under the drive of the steering wheel 50, the gasket 42 transmits damping force with the damping sheet 41 to an operator.
In summary, the steering wheel column of the electric steering vehicle provided by the utility model is characterized in that an upper flange plate 21 is arranged below a column assembly 10, a lower flange hollow cylinder 22 is matched with the upper flange plate 21, and an inner cavity formed by the upper flange plate 21 and the lower flange hollow cylinder 22 is used as a shell of an internal gear set for supporting the internal gear set and ensuring the dimensional accuracy of an internal gear transmission center distance. Two limiting blocks 51 and a positioning pin 29 are arranged in the shell, and the positions of the positioning pin 29 and the limiting blocks 51 are used for guaranteeing that the rotation angle of the steering wheel 50 is the same when the vehicle turns left and right. An angle sensor 30 is installed at an upper portion of the upper flange 21 for transmitting a rotation direction and angle signal of the steering wheel 50 to a control system for controlling turning of the vehicle. A damping sheet 41 for adjusting the manipulation feeling of the steering wheel 50 is installed at the lower portion of the lower flange hollow cylinder 22. Therefore, the steering wheel pipe column of the electric steering vehicle has the advantages of simple and firm structure and compact size; the steering wheel control habit of the traditional vehicle is close to that of the steering wheel, and the steering wheel can rotate for multiple turns.
The foregoing is a description of the preferred embodiments of the present utility model and the technical principles applied thereto, and it will be apparent to those skilled in the art that any equivalent transformation, simple substitution, etc. based on the technical scheme of the present utility model can be made without departing from the spirit and scope of the present utility model.
Claims (4)
1. A steering column for an electric power steering vehicle, the steering column comprising:
the pipe column assembly comprises a pipe column shell and a pipe column central shaft, wherein the pipe column central shaft is rotatably arranged in the pipe column shell in a penetrating mode, and a steering wheel is arranged at the upper end of the pipe column central shaft;
the flange component comprises an upper flange plate, a lower flange hollow cylinder and an annular gear; the upper flange plate is connected with the lower flange hollow cylinder, the inner gear ring is rotatably positioned in the lower flange hollow cylinder, and the upper flange plate is provided with a central hole and an offset hole;
the angle sensor comprises a body and a rotor shaft, wherein the body is fixed on the upper end face of the upper flange plate, and the rotor shaft penetrates through the central hole;
the pipe column shell is fixedly connected to the upper end face of the upper flange, and the lower end of the pipe column central shaft penetrates through the deviation hole and is connected with a gear;
the inner gear ring is meshed with the gear; the positioning pin is matched with the limiting block to limit the maximum steering angle of the electric steering vehicle;
a vertical shaft is arranged in the center of the inner gear ring in a penetrating way, and the upper end of the vertical shaft is connected with the rotor shaft;
the lower end of the vertical shaft rotatably penetrates through the center of the lower flange hollow cylinder and is connected with a damping component.
2. The steering column of an electric power steering vehicle according to claim 1, wherein the upper and lower ends of the vertical shaft are respectively connected to a bearing such that the ring gear is supported at the center of the lower flange hollow cylinder;
the upper end and the lower end of the vertical shaft are respectively provided with a flat surface, the shaft end of the rotor shaft is also provided with a flat surface, and the upper end of the vertical shaft is connected with the shaft end of the rotor shaft through a coupler.
3. The steering column of an electric power steering vehicle of claim 2, wherein a lower end face of the lower flange hollow cylinder has a shoulder; the damping assembly comprises a damping sheet and a gasket, the damping sheet is sleeved on the shoulder, the lower end of the vertical shaft penetrates through the damping sheet and enables the flat surface of the vertical shaft to be fixedly connected with the gasket, and the gasket is tightly pressed on the damping sheet.
4. The steering column of an electric power steering vehicle according to claim 1, wherein the center of the detent pin, the center of the ring gear, and the center of the gear are located on the same straight line when the electric power steering vehicle is traveling straight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321103334.2U CN219749916U (en) | 2023-05-09 | 2023-05-09 | Direction coil pipe column of electric steering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321103334.2U CN219749916U (en) | 2023-05-09 | 2023-05-09 | Direction coil pipe column of electric steering vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219749916U true CN219749916U (en) | 2023-09-26 |
Family
ID=88081984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321103334.2U Active CN219749916U (en) | 2023-05-09 | 2023-05-09 | Direction coil pipe column of electric steering vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219749916U (en) |
-
2023
- 2023-05-09 CN CN202321103334.2U patent/CN219749916U/en active Active
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